Ejector mechanism

Abstract

The utility model belongs to the technical field of bed frames, and discloses an ejection mechanism, which includes a mounting assembly, a driving member, an ejection assembly, a first support member, and a second support member; the mounting assembly is provided with a first limit portion; the driving member is rotatably mounted on the mounting assembly; the ejection assembly is provided with a second limit portion; the two ends of the first support member are respectively rotatably connected to the first limit portion and the ejection assembly, the output end of the driving member is rotatably connected to the first support member, and the first support member slides along the first direction at the first limit portion; the two ends of the second support member are respectively rotatably connected to the second limit portion and the mounting assembly, the second limit portion is arranged parallel to the first limit portion, and the second support member can slide along the first direction at the second limit portion; the first support member is cross-rotatably connected to the second support member, and when the driving member drives the first support member to slide along the first direction at the first limit portion, the ejection assembly approaches or moves away from the mounting assembly. The ejection mechanism of the utility model has a simple structure and low cost.

Description

Technical Field

[0001] The utility model relates to the technical field of bed frames, in particular to an ejection mechanism. Background Art

[0002] Some bed frames are usually provided with some ejection mechanisms for lifting the user's torso, such as the back or waist, so that the user can lie on the bed in a more comfortable posture.

[0003] At present, the existing ejection mechanisms are generally divided into two types. One is to use a cylinder to directly lift the bed board in the vertical direction. This method allows the cylinder to fully bear the weight of the user. The cylinder is under too much pressure and is easily damaged. The other is to use a transmission mechanism, which is beneficial for the transmission mechanism to change the direction of force transmission and reduce the pressure on the cylinder. However, the current transmission mechanism is relatively complex and the cost is relatively high. Utility Model Content

[0004] The utility model aims to provide an ejection mechanism, optimize the structure and reduce the cost.

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

[0006] Ejection mechanism, including:

[0007] The installation assembly is provided with a first limiting portion;

[0008] A driving member, rotatably mounted on the mounting assembly;

[0009] The ejection assembly is provided with a second limiting portion;

[0010] A first support member, two ends of which are rotatably connected to the first limiting portion and the ejection assembly respectively, an output end of the driving member is rotatably connected to the first support member, and the first support member slides along a first direction on the first limiting portion;

[0011] A second support member, two ends of which are rotatably connected to the second limiting portion and the mounting assembly respectively, the second limiting portion is arranged parallel to the first limiting portion, and the second support member can slide along the first direction at the second limiting portion;

[0012] The first support member is cross-rotatably connected to the second support member. When the driving member drives the first support member to slide along the first direction at the first limiting portion, the ejection assembly approaches or moves away from the installation assembly.

[0013] As an optional technical solution, the mounting assembly includes a mounting plate, a first mounting platform and a second mounting platform, the first mounting platform is provided with a first guide groove extending along the first direction, the first guide groove is provided with a first connecting member, the output end of the driving member and the root of the first supporting member are both rotatably connected to the first connecting member, and the root of the second supporting member is rotatably connected to the second mounting platform;

[0014] The ejection assembly includes an ejection plate, a third mounting platform and a fourth mounting platform, the third mounting platform is provided with a second guide groove extending along the first direction, the second guide groove is provided with a second connecting member, the top of the second support member is rotatably connected to the second connecting member, and the top of the first support member is rotatably connected to the fourth mounting platform;

[0015] The first mounting platform and the third mounting platform are located on the same side of the intersection of the first support member and the second support member, and the second mounting platform and the fourth mounting platform are located on the other side of the intersection of the first support member and the second support member.

[0016] As an optional technical solution, the driving member, the first mounting platform and the second mounting platform are all located on a side of the mounting plate away from the ejection assembly.

[0017] As an optional technical solution, the mounting plate is provided with an avoidance groove, and the first support member and the second support member pass through the avoidance groove.

[0018] As an optional technical solution, the third mounting platform and the fourth mounting platform are installed on a side of the ejection plate facing the mounting plate.

[0019] As an optional technical solution, the third mounting platform and the fourth mounting platform are directly opposite to the avoidance groove, and when the ejection plate is close to the mounting plate, the third mounting platform and the fourth mounting platform can be inserted into the avoidance groove.

[0020] As an optional technical solution, two first support members are provided, and one second support member is provided. The two first support members are arranged at an interval, and the second support member passes between the two first support members.

[0021] As an optional technical solution, the first support member shown includes a root segment, a transition segment and a top segment arranged in sequence, the two transition segments are respectively rotatably connected to the two sides of the second support member, and the distance between the two root segments and the distance between the two top segments are both greater than the distance between the two transition segments.

[0022] As an optional technical solution, the two root segments are arranged in parallel, and / or the two top segments are arranged in parallel.

[0023] As an optional technical solution, in the same first support member, the root segment and the top segment are located on the same extension line.

[0024] Beneficial effects of the utility model:

[0025] The ejection mechanism provided by the utility model comprises a mounting assembly, a driving member, an ejection assembly, a first support member and a second support member, wherein the mounting assembly is provided with a first limiting portion; the driving member is rotatably mounted on the mounting assembly; the ejection assembly is provided with a second limiting portion; the two ends of the first support member are respectively rotatably connected to the first limiting portion and the ejection assembly, the output end of the driving member is rotatably connected to the first support member, and the first support member slides along the first direction at the first limiting portion; the two ends of the second support member are respectively rotatably connected to the second limiting portion and the mounting assembly, the second limiting portion is arranged in parallel with the first limiting portion, and the second support member can slide along the first direction at the second limiting portion. The utility model cross-rotates and connects the first support member and the second support member, uses the first limiter to limit the sliding direction of the root of the first support member, and uses the second limiter to limit the sliding direction of the top of the second support member. When the driving member drives the root of the first support member to approach the root of the second support member along the first direction at the first limiter, the ejection assembly moves away from the mounting assembly, and the ejection assembly realizes the ejection action. When the driving member drives the root of the first support member to move away from the root of the second support member along the first direction at the first limiter, the ejection assembly moves close to the mounting assembly, and the ejection assembly realizes the retraction action. The ejection mechanism of the utility model is optimized in structure, simple in layout, and low in cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the ejection mechanism of the utility model from a first perspective;

[0027] Figure 2 It is a structural schematic diagram of the ejection mechanism of the utility model from a second viewing angle;

[0028] Figure 3 It is a structural schematic diagram of the ejection mechanism of the utility model from a third viewing angle;

[0029] Figure 4 It is an exploded view of the electric bed of the utility model.

[0030] In the figure:

[0031] 1. Mounting assembly; 11. Mounting plate; 111. Avoidance groove; 12. First mounting platform; 121. First guide groove; 13. Second mounting platform;

[0032] 2. Driving parts;

[0033] 3. Ejector assembly; 31. Ejector plate; 32. Third mounting platform; 321. Second guide groove; 33. Fourth mounting platform;

[0034] 4. first support member; 41. root section; 42. transition section; 43. top section;

[0035] 5. The second support member. DETAILED DESCRIPTION

[0036] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0037] In the description of the present invention, unless otherwise clearly specified 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 an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0039] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0040] like Figures 1 to 3As shown, the ejection mechanism provided in this embodiment includes a mounting assembly 1, a driving member 2, an ejection assembly 3, a first support member 4 and a second support member 5, the mounting assembly 1 is provided with a first limiting portion; the driving member 2 is rotatably mounted on the mounting assembly 1; the ejection assembly 3 is provided with a second limiting portion; the two ends of the first supporting member 4 are respectively rotatably connected to the first limiting portion and the ejection assembly 3, the output end of the driving member 2 is rotatably connected to the first supporting member 4, and the first supporting member 4 slides along the first direction at the first limiting portion; the two ends of the second supporting member 5 are respectively rotatably connected to the second limiting portion and the mounting assembly 1, the second limiting portion is arranged parallel to the first limiting portion, and the second supporting member 5 can slide along the first direction at the second limiting portion; the first supporting member 4 is cross-rotatably connected to the second supporting member 5, and when the driving member 2 drives the first supporting member 4 to slide along the first direction at the first limiting portion, the ejection assembly 3 approaches or moves away from the mounting assembly 1.

[0041] Specifically, the utility model cross-rotates and connects the first support member 4 and the second support member 5, and uses the first limiter to limit the sliding direction of the root of the first support member 4, and uses the second limiter to limit the sliding direction of the top of the second support member 5. When the driving member 2 drives the root of the first support member 4 to approach the root of the second support member 5 along the first direction at the first limiter, the ejection assembly 3 moves away from the installation assembly 1, and the ejection assembly 3 realizes the ejection action. When the driving member 2 drives the root of the first support member 4 to move away from the root of the second support member 5 along the first direction at the first limiter, the ejection assembly 3 moves close to the installation assembly 1, and the ejection assembly 3 realizes the retraction action. The ejection mechanism of the utility model is optimized in structure, simple in layout, and low in cost.

[0042] The ejection mechanism of this embodiment can be applied to multiple positions of the bed frame. For example, the ejection mechanism is installed in the middle of the bed frame to provide lifting support for the user's waist, or the ejection mechanism is installed at the end of the bed frame to provide lifting support for the user's head.

[0043] In this embodiment, the driving member 2 is a cylinder, a linear electric cylinder, or other linear power members.

[0044] Optionally, the mounting assembly 1 includes a mounting plate 11, a first mounting platform 12 and a second mounting platform 13, the first mounting platform 12 is provided with a first guide groove 121 extending along the first direction, the first guide groove 121 is provided with a first connecting member, the output end of the driving member 2 and the root of the first support member 4 are both rotatably connected to the first connecting member, and the root of the second support member 5 is rotatably connected to the second mounting platform 13; the ejection assembly 3 includes an ejection plate 31, a third mounting platform 32 and a fourth mounting platform 33, the third mounting platform 32 is provided with a second guide groove 321 extending along the first direction, the second guide groove 321 is provided with a second connecting member, the top of the second support member 5 is rotatably connected to the second connecting member, and the top of the first support member 4 is rotatably connected to the fourth mounting platform 33; the first mounting platform 12 and the third mounting platform 32 are located on the same side of the intersection of the first support member 4 and the second support member 5, and the second mounting platform 13 and the fourth mounting platform 33 are located on the other side of the intersection of the first support member 4 and the second support member 5.

[0045] Optionally, the first limiting portion is a first mounting platform 12 provided with a first guide groove 121 , and the second limiting portion is a third mounting platform 32 provided with a second guide groove 321 .

[0046] The mounting assembly 1 is fixed to the bed frame. When the user lies on the bed board and needs to lift up his waist, the driving member 2 can drive the first connecting member to slide along the first guide groove 121 in the first direction close to the second mounting platform 13. Since the first support member 4 and the second support member 5 are cross-rotatably connected, the root of the first support member 4 is close to the root of the second support member 5, and the top of the second support member 5 is close to the top of the first support member 4. The ejection plate 31 lifts up the user's waist. When the user's waist needs to be lowered, the driving member 2 drives the first connecting member to slide along the first guide groove 121 in the first direction away from the second mounting platform 13. The first connecting member and the second connecting member are both existing connecting rods, and the specific structure is not shown again.

[0047] Optionally, the driving member 2 , the first mounting platform 12 and the second mounting platform 13 are all located on the side of the mounting plate 11 away from the ejection assembly 3 to prevent the driving member 2 , the first mounting platform 12 and the second mounting platform 13 from blocking the descent of the ejection plate 31 .

[0048] Optionally, the mounting plate 11 is provided with an avoidance groove 111 , and the first support member 4 and the second support member 5 pass through the avoidance groove 111 , so that the first support member 4 and the second support member 5 have a larger rotation space.

[0049] Optionally, the third mounting platform 32 and the fourth mounting platform 33 are installed on the side of the ejection plate 31 facing the mounting plate 11 to prevent the user from pressing on the third mounting platform 32 and the fourth mounting platform 33 when lying on the ejection plate 31, thereby preventing the sensation of foreign objects and improving the user experience.

[0050] Optionally, the third mounting platform 32 and the fourth mounting platform 33 are opposite to the avoidance groove 111. When the ejection plate 31 is close to the mounting plate 11, the third mounting platform 32 and the fourth mounting platform 33 can be inserted into the avoidance groove 111 so that the ejection plate 31 can be lowered to a position flush with the mounting plate 11.

[0051] In this embodiment, two first support members 4 are provided, and one second support member 5 is provided. The two first support members 4 are arranged at intervals, and the second support member 5 passes between the two first support members 4. The two first support members 4 and one second support member 5 jointly support the ejection plate 31, and the stability is higher; the output end of the driving member 2 is rotatably connected to the middle part of the first connecting member, and the roots of the two first support members 4 are rotatably connected to the two ends of the first connecting member. When the driving member 2 drives the first connecting member to slide in the first guide groove 121, the two first support members 4 are evenly stressed.

[0052] In this embodiment, the second support member 5 is a square cylindrical structure, which has higher structural strength and is more convenient for cross-rotating connection between the two first support members 4 and the second support members 5 .

[0053] In some other embodiments, two second support members 5 are provided, and one first support member 4 is provided. The two second support members 5 are arranged at intervals, and the first support member 4 passes between the two second support members 5 .

[0054] Optionally, the first support member 4 shown includes a root segment 41, a transition segment 42 and a top segment 43 which are arranged in sequence, and the two transition segments 42 are respectively rotatably connected to the two sides of the second support member 5, and the distance between the two root segments 41 and the distance between the two top segments 43 are both greater than the distance between the two transition segments 42, so as to avoid friction between the root segment 41 and the top segment 43 and the second support member 5.

[0055] Optionally, the two root segments 41 are arranged in parallel, and / or the two top segments 43 are arranged in parallel.

[0056] In this embodiment, in the same first support member 4, the root section 41 and the top section 43 are located on the same extension line. In this embodiment, the first support member 4 can be obtained by punching the middle of the straight strip once, and the production cost is low.

[0057] like Figure 4 As shown, this embodiment also provides an electric bed, which includes a bed frame and the ejection mechanism as described above.

[0058] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. Ejection mechanism, characterized in that: include: The mounting assembly (1) is provided with a first limiting portion; A driving member (2) rotatably mounted on the mounting assembly (1); The ejection assembly (3) is provided with a second limiting portion; A first support member (4), two ends of which are rotatably connected to the first limiting portion and the ejection assembly (3), respectively; an output end of the driving member (2) is rotatably connected to the first support member (4); and the first support member (4) slides along a first direction on the first limiting portion; a second support member (5), two ends of which are rotatably connected to the second limiting portion and the mounting assembly (1), the second limiting portion being arranged parallel to the first limiting portion, and the second support member (5) being able to slide along the first direction on the second limiting portion; The first support member (4) is cross-rotatably connected to the second support member (5), and when the driving member (2) drives the first support member (4) to slide along the first direction at the first limiting portion, the ejection assembly (3) approaches or moves away from the installation assembly (1).

2. The ejection mechanism according to claim 1, characterized in that: The mounting assembly (1) comprises a mounting plate (11), a first mounting platform (12) and a second mounting platform (13); the first mounting platform (12) is provided with a first guide groove (121) extending along the first direction; the first guide groove (121) is provided with a first connecting member; the output end of the driving member (2) and the root of the first supporting member (4) are both rotatably connected to the first connecting member; and the root of the second supporting member (5) is rotatably connected to the second mounting platform (13); The ejection assembly (3) comprises an ejection plate (31), a third mounting platform (32) and a fourth mounting platform (33); the third mounting platform (32) is provided with a second guide groove (321) extending along the first direction; the second guide groove (321) is provided with a second connecting member; the top of the second support member (5) is rotatably connected to the second connecting member; and the top of the first support member (4) is rotatably connected to the fourth mounting platform (33); The first mounting platform (12) and the third mounting platform (32) are located on the same side of the intersection of the first support member (4) and the second support member (5), and the second mounting platform (13) and the fourth mounting platform (33) are located on the other side of the intersection of the first support member (4) and the second support member (5).

3. The ejection mechanism according to claim 2, characterized in that: The driving member (2), the first mounting platform (12) and the second mounting platform (13) are all located on a side of the mounting plate (11) facing away from the ejection assembly (3).

4. The ejection mechanism according to claim 3, characterized in that: The mounting plate (11) is provided with an avoidance groove (111), and the first support member (4) and the second support member (5) pass through the avoidance groove (111).

5. The ejection mechanism according to claim 4, characterized in that: The third mounting platform (32) and the fourth mounting platform (33) are mounted on a side of the ejection plate (31) facing the mounting plate (11).

6. The ejection mechanism according to claim 5, characterized in that: The third mounting platform (32) and the fourth mounting platform (33) are directly opposite to the avoidance groove (111); when the ejection plate (31) is close to the mounting plate (11), the third mounting platform (32) and the fourth mounting platform (33) can be inserted into the avoidance groove (111).

7. The ejection mechanism according to claim 1, characterized in that: The number of the first support members (4) is two, the number of the second support member (5) is one, the two first support members (4) are arranged at an interval, and the second support member (5) passes between the two first support members (4).

8. The ejection mechanism according to claim 7, characterized in that: The first support member (4) shown comprises a root section (41), a transition section (42) and a top section (43) which are arranged in sequence, the two transition sections (42) are rotatably connected to the two sides of the second support member (5), respectively, and the distance between the two root sections (41) and the distance between the two top sections (43) are both greater than the distance between the two transition sections (42).

9. The ejection mechanism according to claim 8, characterized in that: The two root segments (41) are arranged in parallel, and / or the two top segments (43) are arranged in parallel.

10. The ejection mechanism according to claim 9, characterized in that: In the same first support member (4), the root segment (41) and the top segment (43) are located on the same extension line.

Images