Jacking structure

Abstract

The utility model belongs to the technical field of bed frames, and discloses a jacking structure, the jacking structure is installed on an installation structure, the jacking structure comprises a jacking piece, a supporting mechanism and a driving piece, and the jacking piece is movably arranged on the installation structure in the vertical direction; the supporting mechanism comprises a connecting piece and at least two sets of supporting assemblies, the at least two sets of supporting assemblies are parallel and arranged at intervals in the first horizontal direction, the roots of the supporting assemblies are rotationally installed on the installation structure around the second horizontal direction, the rotating radiuses of all the sets of supporting assemblies are equal, and the tops of the supporting assemblies abut against the jacking piece in a sliding mode. The connecting piece is rotationally connected with the at least two supporting assemblies, and the first horizontal direction is perpendicular to the second horizontal direction; one of the body and the output end of the driving part is rotationally connected to the mounting structure, the other one is rotationally connected to the supporting mechanism, and the driving part can drive the supporting assembly to rotate in the second horizontal direction. Components of the jacking structure are optimized, parts are reduced, and cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of bed frames, in particular to a jacking structure. Background Art

[0002] Deformable bed frames are widely used, and there is a strong demand for deformable bed frames in application places such as hospitals, families, hotels, etc. The deformable bed frame can lift the bed boards of various parts of the corresponding user, so that the user can be adjusted to the required posture.

[0003] At present, the device for lifting the bed board includes many components, and the connection relationship between the components is relatively complex. For example, a link-type waist jacking mechanism with the application number CN202122549772.9 includes a lifting rod, a translation driving component, a sliding bar and a base. Among them, the translation driving component includes an electric cylinder, a driving link, a central shaft and a transmission connecting piece. This kind of jacking mechanism in the prior art includes many components, the connection relationship between the components is relatively complex, and the cost is relatively high. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a jacking structure, optimize the layout, reduce the number of components and reduce the cost.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] A jacking structure is installed on an installation structure, and the jacking structure includes:

[0007] A jacking member is movably arranged on the installation structure in the vertical direction;

[0008] A support mechanism includes a connecting member and at least two groups of support components. At least two groups of the support components are parallel and arranged at intervals in a first horizontal direction. The roots of the support components are rotatably installed on the installation structure around a second horizontal direction. The rotation radius of each group of the support components is equal. The tops of the support components are slidably abutted against the jacking member. The connecting member is rotatably connected to at least two groups of the support components. The first horizontal direction is perpendicular to the second horizontal direction;

[0009] A driving member, one of the body and the output end of which is rotatably connected to the installation structure, and the other of which is rotatably connected to the support mechanism. The driving member can drive the support component to rotate around the second horizontal direction.

[0010] As an optional technical solution, a jacking wheel is rotatably installed at the top of the support component, and the jacking wheel is slidably abutted against the jacking member.

[0011] As an alternative technical solution, a guiding groove is provided at the bottom of the jacking member. The guiding groove extends along the first horizontal direction, and the jacking wheel is received in the guiding groove.

[0012] As an alternative technical solution, the supporting assembly includes two supporting plates. The two supporting plates are spaced apart along the second horizontal direction. The jacking wheel is located between the two supporting plates, and the jacking wheel is rotatably connected to the two supporting plates.

[0013] As an alternative technical solution, a concave connecting portion is provided at the end of the connecting member. The concave connecting portion is located between the two supporting plates in the same group of the supporting assemblies. The jacking wheel is located in the groove of the concave connecting portion. A hinge member passes through the supporting plate, the concave connecting portion and the jacking wheel to rotatably connect the supporting plate, the concave connecting portion and the jacking wheel.

[0014] As an alternative technical solution, the supporting plate includes a root section, a transition section and a top section connected in sequence. The root section is rotatably connected to the mounting structure. The jacking wheel is rotatably mounted on the top section. In the same group of the supporting assemblies, the two root sections are arranged in parallel and spaced apart by a first preset value, and the two top sections are arranged in parallel and spaced apart by a second preset value. The first preset value is greater than the second preset value.

[0015] As an alternative technical solution, one of the body and the output end of the driving member is rotatably connected to the mounting structure, and the other of the body and the output end of the driving member is rotatably connected to the connecting member.

[0016] As an alternative technical solution, the body of the driving member is rotatably connected to the mounting structure, and the output end of the driving member is rotatably connected to the connecting member.

[0017] As an alternative technical solution, the jacking structure further includes a guiding column and a guiding sleeve. One of the guiding column and the guiding sleeve is provided on the jacking member, and the other of the guiding column and the guiding sleeve is provided on the mounting structure. The guiding column is slidably inserted into the guiding sleeve along the vertical direction.

[0018] As an alternative technical solution, the guiding sleeve is fixedly mounted on the mounting structure, and the guiding column is fixedly mounted on the jacking member.

[0019] Advantages of the utility model:

[0020] The present utility model provides a jacking structure, which is installed on an installation structure. The jacking structure includes a jacking member, a support mechanism and a driving member. The jacking member is movably arranged on the installation structure in the vertical direction; the support mechanism includes a connecting member and at least two groups of support components. The at least two groups of support components are parallel and arranged at intervals in the first horizontal direction. The root of the support component is rotatably installed on the installation structure around the second horizontal direction. The rotation radius of each group of support components is equal. The top of the support component slidably abuts against the jacking member. The connecting member is rotatably connected to at least two groups of support components. The first horizontal direction is perpendicular to the second horizontal direction; one of the body and the output end of the driving member is rotatably connected to the installation structure, and the other is rotatably connected to the support mechanism. The driving member can drive the support component to rotate around the second horizontal direction. When the output end of the driving member extends, the support components connected by the connecting member all rotate around the second horizontal direction. When the support component rotates around the second horizontal direction, the support component jacks up the jacking member, and the jacking member rises in the vertical direction, so as to jack up a user or an object. When the output end of the driving member retracts, the support components connected by the connecting member all rotate reversely around the second horizontal direction, and the jacking member descends under the action of the gravity of the user or the object. In the present utility model, the connecting member is rotatably connected to at least two groups of support components, so that at least two groups of support components can synchronously jack up the support component. Description of the Drawings

[0021] Figure 1 is a schematic structural diagram of the jacking structure of the present utility model from the first perspective;

[0022] Figure 2 is a schematic structural diagram of the jacking structure of the present utility model from the second perspective;

[0023] Figure 3 is a schematic structural diagram of the electric bed of the present utility model.

[0024] In the figure:

[0025] 101, First installation table; 102, Second installation table; 103, Third installation table; 104, Fourth installation table;

[0026] 1, Jacking member; 11, Guide groove; 12, Jacking plate; 13, Guide plate;

[0027] 2, Support mechanism; 21, Connecting member; 211, Concave connecting part; 22, Support component; 221, Support plate; 2211, Root section; 2212, Transition section; 2213, Top section; 23, Jacking wheel;

[0028] 3, Driving member;

[0029] 4, Guide post;

[0030] 5, Guide sleeve. Detailed implementation mode

[0031] The present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. In addition, it should be noted that, for the sake of convenience of description, only the parts related to the present utility model rather than all the structures are shown in the drawings.

[0032] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal connection of two groups of components or the interaction relationship between two groups of components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0033] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "above", and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "below", and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0034] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "right", etc. are based on the orientation or positional relationships shown in the drawings. It is only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meanings.

[0035] Such as Figure 1 and Figure 2As shown in the figure, the jacking structure provided in this embodiment is installed on the installation structure. The jacking structure includes a jacking member 1, a support mechanism 2, and a driving member 3. The jacking member 1 is movably arranged on the installation structure in the vertical direction; the support mechanism 2 includes a connecting member 21 and at least two groups of support components 22. The at least two groups of support components 22 are parallel and arranged at intervals in the first horizontal direction. The roots of the support components 22 are rotatably installed on the installation structure around the second horizontal direction. The rotation radius of each group of support components 22 is equal. The tops of the support components 22 are slidably abutted against the jacking member 1. The connecting member 21 is rotatably connected to the at least two groups of support components 22. The first horizontal direction is perpendicular to the second horizontal direction; one of the body and the output end of the driving member 3 is rotatably connected to the installation structure, and the other is rotatably connected to the support mechanism 2. The driving member 3 can drive the support components 22 to rotate around the second horizontal direction.

[0036] Specifically, when the output end of the driving member 3 extends, the support components 22 connected by the connecting member 21 all rotate around the second horizontal direction. When the support components 22 rotate around the second horizontal direction, the support components 22 jack up the jacking member 1, and the jacking member 1 rises in the vertical direction, so as to jack up the user or the article. When the output end of the driving member 3 retracts, the support components 22 connected by the connecting member 21 all rotate in the reverse direction around the second horizontal direction, and the jacking member 1 descends under the action of the gravity of the user or the article. In this embodiment, the connecting member 21 is rotatably connected to the at least two groups of support components 22, so that the at least two groups of support components 22 can jack up the jacking member 1 synchronously.

[0037] In this embodiment, the first horizontal direction is the X-axis direction, the second horizontal direction is the Y-axis direction, and the vertical direction is the Z-axis direction.

[0038] The jacking structure of this embodiment can be applied to multiple positions of the bed frame. For example, the jacking structure is installed in the middle of the bed frame to jack up and support the user's waist, or the jacking structure is installed at the end of the bed frame to jack up and support the user's head.

[0039] In this embodiment, the driving member 3 is a cylinder, or a linear electric cylinder, or other linear power members.

[0040] In this embodiment, the support mechanism 2 includes two groups of support components 22. In some other embodiments, the number of support components 22 is set to three groups, four groups or even more.

[0041] Optionally, a jacking wheel 23 is rotatably installed at the top of the support component 22, and the jacking wheel 23 is slidably abutted against the jacking member 1. The jacking wheel 23 and the jacking member 1 are in rolling friction, with small friction, reduced noise, and reduced wear, thus extending the service life.

[0042] Optionally, a rubber sleeve is sleeved on the circumferential part of the jacking wheel 23. The rubber sleeve can buffer the rigid impact between the jacking wheel 23 and the jacking member 1 and reduce noise.

[0043] Optionally, a guiding groove 11 is provided at the bottom of the jacking member 1. The guiding groove 11 extends along the first horizontal direction, and the jacking wheel 23 is received in the guiding groove 11. The guiding groove 11 is used to guide the jacking wheel 23 to avoid the jacking wheel 23 deviating from the preset track.

[0044] In this embodiment, the jacking member 1 includes a jacking plate 12 and a guiding plate 13. The guiding plate 13 is detachably installed on the bottom plate of the jacking plate 12, and the guiding groove 11 is formed in the guiding plate 13.

[0045] Optionally, the supporting assembly 22 includes two supporting plates 221. The two supporting plates 221 are spaced apart along the second horizontal direction. The jacking wheel 23 is located between the two supporting plates 221, and the jacking wheel 23 is rotatably connected to the two supporting plates 221. The jacking wheel 23 is jointly acted on by the jacking member 1 and the user's gravity, and the force is relatively large. Two supporting plates 221 are used to support the same jacking wheel 23, thereby improving the supporting stability.

[0046] Optionally, a concave connecting portion 211 is provided at the end of the connecting member 21. The concave connecting portion 211 is located between the two supporting plates 221 in the same group of supporting assemblies 22. The jacking wheel 23 is located in the groove of the concave connecting portion 211. The hinge member passes through the supporting plate 221, the concave connecting portion 211 and the jacking wheel 23 to rotatably connect the supporting plate 221, the concave connecting portion 211 and the jacking wheel 23. The connecting member 21 plays a role in power transmission, enabling the two groups of supporting assemblies 22 to rotate synchronously; by using the concave connecting portion 211 to rotatably connect with the supporting plate 221 and the jacking wheel 23, the power transmission efficiency is higher.

[0047] Optionally, the supporting plate 221 includes a root section 2211, a transition section 2212 and a top section 2213 connected in sequence. The root section 2211 is rotatably connected to the installation structure, and the jacking wheel 23 is rotatably installed on the top section 2213. In the same group of supporting assemblies 22, the two root sections 2211 are parallel and spaced apart by a first preset value, and the two top sections 2213 are parallel and spaced apart by a second preset value. The first preset value is greater than the second preset value.

[0048] When the supporting plate 221 and the connecting member 21 rotate relative to each other, the root section 2211 and the transition section 2212 do not contact the connecting member 21, and there is no frictional resistance; and the supporting plate 221 has a Z-shaped structure. Based on the structural layout that the two root sections 2211 are parallel and spaced apart by a first preset value, the two top sections 2213 are parallel and spaced apart by a second preset value, and the first preset value is greater than the second preset value, the two supporting plates 221 have higher structural strength and can support greater pressure.

[0049] Optionally, one of the body and the output end of the driving member 3 is rotatably connected to the mounting structure, and the other of the body and the output end of the driving member 3 is rotatably connected to the connecting member 21.

[0050] In this embodiment, the body of the driving member 3 is rotatably connected to the mounting structure, and the output end of the driving member 3 is rotatably connected to the connecting member 21. The connecting member 21 is a square tubular structure, which makes the connecting member 21 have stronger structural strength. The output end of the driving member 3 is rotatably connected to the connecting member 21, and the driving member 3 drives the connecting member 21, so that the jacking wheels 23 located at both ends of the connecting member 21 move synchronously.

[0051] In some other embodiments, the body of the driving member 3 is rotatably connected to the connecting member 21, the output end of the driving member 3 is rotatably connected to the mounting structure, or the body of the driving member 3 is rotatably connected to the mounting structure, and the output end of the driving member 3 is rotatably connected to the support plate 221.

[0052] Optionally, the jacking structure further includes a guide post 4 and a guide sleeve 5. One of the guide post 4 and the guide sleeve 5 is arranged on the jacking member 1, and the other of the guide post 4 and the guide sleeve 5 is arranged on the mounting structure. The guide post 4 is slidably inserted into the guide sleeve 5 in the vertical direction, so that the jacking member 1 only moves up and down in the vertical direction, preventing the jacking member 1 from deviating in other directions.

[0053] In this embodiment, the guide sleeve 5 is fixedly installed on the mounting structure, and the guide post 4 is fixedly installed on the jacking member 1.

[0054] In some other embodiments, the guide sleeve 5 is fixedly installed on the jacking member 1, and the guide post 4 is fixedly installed on the mounting structure.

[0055] In this embodiment, the guide post 4 and the guide sleeve 5 are respectively provided with two, and the two guide posts 4 and the two guide sleeves 5 are arranged in one-to-one correspondence.

[0056] The mounting structure includes a first mounting table 101, a second mounting table 102, a third mounting table 103, and a fourth mounting table 104 arranged in sequence along the first horizontal direction. The two guide sleeves 5 are respectively fixedly installed on the first mounting table 101 and the fourth mounting table 104. One set of the support assemblies 22 and the driving member 3 are rotatably installed on the second mounting table 102, and the other set of the support assemblies 22 are rotatably installed on the third mounting table 103.

[0057] As Figure 3 shown, this embodiment further provides an electric bed, and the electric bed includes a bed frame and the above jacking structure.

[0058] Obviously, the above embodiments of the present utility model are merely examples for clearly illustrating the present utility model, rather than limitations on the implementation manners of the present utility model. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present utility model. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present utility model shall be included in the protection scope of the claims of the present utility model.

Claims

1. A lifting structure, mounted on a mounting structure, characterized in that: The jacking structure comprises: A lifting member (1) is movably arranged on the mounting structure in a vertical direction; A support mechanism (2), comprising a connecting member (21) and at least two groups of support assemblies (22), wherein the at least two groups of support assemblies (22) are arranged in parallel and spaced apart along a first horizontal direction, the roots of the support assemblies (22) are rotatably mounted on the mounting structure around a second horizontal direction, the rotation radius of each group of support assemblies (22) is equal, the top of the support assembly (22) is slidably abutted against the lifting member (1), the connecting member (21) is rotatably connected to the at least two groups of support assemblies (22), and the first horizontal direction is perpendicular to the second horizontal direction; A driving member (3), one of its body and its output end is rotatably connected to the mounting structure, and the other of the two is rotatably connected to the support mechanism (2), and the driving member (3) can drive the support assembly (22) to rotate around the second horizontal direction.

2. The jacking structure according to claim 1, characterized in that: A lifting wheel (23) is rotatably mounted on the top of the support assembly (22), and the lifting wheel (23) is slidably abutted against the lifting member (1).

3. The jacking structure according to claim 2, characterized in that: A guide groove (11) is provided at the bottom of the lifting member (1), the guide groove (11) extends along the first horizontal direction, and the lifting wheel (23) is accommodated in the guide groove (11).

4. The jacking structure according to claim 2, characterized in that: The support assembly (22) comprises two support plates (221), the two support plates (221) are arranged at intervals along the second horizontal direction, the lifting wheel (23) is located between the two support plates (221), and the lifting wheel (23) is rotatably connected to the two support plates (221).

5. The jacking structure according to claim 4, characterized in that: A concave connecting portion (211) is provided at the end of the connecting member (21); the concave connecting portion (211) is located between two supporting plates (221) in the same group of supporting assemblies (22); the lifting wheel (23) is located in a groove of the concave connecting portion (211); and a hinge passes through the supporting plate (221), the concave connecting portion (211) and the lifting wheel (23) so as to rotatably connect the supporting plate (221), the concave connecting portion (211) and the lifting wheel (23).

6. The jacking structure according to claim 4 or 5, characterized in that: The support plate (221) comprises a root section (2211), a transition section (2212) and a top section (2213) which are connected in sequence; the root section (2211) is rotatably connected to the mounting structure; the lifting wheel (23) is rotatably mounted on the top section (2213); in the same group of the support components (22), the two root sections (2211) are arranged in parallel and the spacing distance is a first preset value; the two top sections (2213) are arranged in parallel and the spacing distance is a second preset value; the first preset value is greater than the second preset value.

7. The jacking structure according to claim 1, characterized in that: One of the body and the output end of the driving member (3) is rotatably connected to the mounting structure, and the other of the body and the output end of the driving member (3) is rotatably connected to the connecting member (21).

8. The jacking structure according to claim 7, characterized in that: The body of the driving member (3) is rotatably connected to the mounting structure, and the output end of the driving member (3) is rotatably connected to the connecting member (21).

9. The jacking structure according to claim 1, characterized in that: The lifting structure further comprises a guide column (4) and a guide sleeve (5), one of the guide column (4) and the guide sleeve (5) being arranged on the lifting member (1), and the other of the guide column (4) and the guide sleeve (5) being arranged on the mounting structure, and the guide column (4) being slidably inserted into the guide sleeve (5) in a vertical direction.

10. The lifting structure according to claim 9, characterized in that: The guide sleeve (5) is fixedly mounted on the mounting structure, and the guide column (4) is fixedly mounted on the lifting member (1).

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