Electric lifting adjusting bed

Abstract

The utility model discloses an electric lifting adjusting bed which comprises a fixed bed frame, a movable bed frame, a cantilever assembly and a linear actuator. The cantilever assembly comprises a first pull rod and a second pull rod, the fixed bed frame, the first pull rod and the second pull rod form a triangular supporting structure, and a mounting point position is formed at the joint of the second pull rod and the first pull rod; the driving end or the actuator body of the linear actuator is rotationally connected with the movable bed frame, and the actuator body or the driving end of the linear actuator is rotationally connected with the mounting point position, so that the linear actuator can rotate when the movable bed frame is driven to rotate relative to the fixed bed frame; the reaction force of the thrust of the linear actuator is converted into the pressure of the first pull rod and the pull force of the second pull rod. According to the electric lifting adjusting bed, when the movable bed frame is in the initial horizontal state, the inclination angle of the linear actuator is large, the thickness of the fixed bed frame cannot be increased, the packaging size is small, and the transportation cost is low.

Description

Technical Field

[0001] The present application relates to the technical field of furniture equipment, and in particular to an electric lifting and adjusting bed. Background Art

[0002] With the improvement of people's living standards, electric beds are widely used. The structure of the electric lifting and adjusting bed in the related technology includes a fixed bed frame, bed legs, and a backrest bracket and a leg bracket connected to the fixed bed frame. The backrest bracket is also called a movable bed frame. One end of the backrest bracket is hinged with the leg bracket, and a linear actuator that can drive the backrest bracket to rotate is connected between the backrest bracket and the fixed bed frame. The linear actuator is also called an electric push rod. Driven by the linear actuator, the electric adjustable bed can adjust the user's sleeping, lying, sitting and other postures to relieve fatigue, so it is deeply loved by users.

[0003] Related technology Electric lifting and adjusting bed In order to reduce the thrust of the linear actuator when the movable bed frame rotates upward from an initial horizontal state, one method is to install an auxiliary driving mechanism linked with the linear actuator on the fixed bed frame, and the movable bed frame is first rotated to a certain angle by the auxiliary driving mechanism, and then continues to unfold under the drive of the linear actuator, such as the auxiliary support structure in the patent application with announcement number CN115500645A previously applied by the applicant of this case; the other method is, for the traditional simplest and most economical direct push structure, in order to reduce the thrust of the linear actuator when the movable bed frame rotates upward from an initial horizontal state, the connection point between the linear actuator and the fixed bed frame, that is, the height of the installation point or support position of the linear actuator is lowered and set in the direction close to the movable bed frame, so that when the movable bed frame is in a horizontal state, the inclination angle of the linear actuator is increased, so that most of the thrust of the linear actuator can be converted into the thrust of driving the movable bed frame to rotate, thereby reducing the thrust of the linear actuator.

[0004] The above-mentioned related art electric lifting and adjusting beds have the following defects in actual production or use: First, the electric lifting and adjusting beds that use an auxiliary driving mechanism to reduce the thrust of the linear actuator when the movable bed frame rotates upward from an initial horizontal state require more parts for the auxiliary driving mechanism, have a complex structure, and are difficult to assemble, and lead to increased production costs, which is not convenient for large-scale promotion; Second, the electric lifting and adjusting bed that reduces the thrust of the linear actuator when the movable bed frame rotates upward from an initial horizontal state by lowering or adjusting the height of the installation point of the linear actuator, has a cantilever that is inclined from top to bottom toward the movable bed frame connected to the fixed bed frame, and the free end of the cantilever forms an installation point for the linear actuator to be installed; because the installation point of the linear actuator is farther away from the fixed bed frame, the greater the inclination angle of the linear actuator, the longer the length of the cantilever, which increases the force on the cantilever, and is bound to cause the thickness of the fixed bed frame of the electric bed to be made larger; and the increase in the thickness of the fixed bed frame and the downward adjustment of the installation point of the cantilever make the volume of the electric bed large after folding and packaging, and the transportation cost is doubled. Utility Model Content

[0005] The technical problem to be solved by the present application is to overcome the defects of the above-mentioned related technologies and provide an electric lifting and adjusting bed with a large inclination angle of the linear actuator when the movable bed frame is in an initial horizontal state, which will not cause the thickness of the fixed bed frame to increase, has a small packaging volume and low transportation cost.

[0006] The technical solution of the present application is to provide an electric lifting and adjusting bed having the following structure:

[0007] A bed frame, comprising a fixed bed frame and a movable bed frame that rotates relative to the fixed bed frame to adjust the angle;

[0008] A cantilever assembly is arranged below the fixed bed frame, and the cantilever assembly includes a first pull rod and a second pull rod; the fixed bed frame, the first pull rod and the second pull rod form a triangular support structure, and the connection between the second pull rod and the first pull rod forms a mounting point;

[0009] A linear actuator comprises an actuator body and a driving end which reciprocates axially relative to the actuator body, wherein the driving end or the actuator body is rotationally connected to the movable bed frame, and the actuator body or the driving end is rotationally connected to the mounting point, and is used for converting the reaction force of the thrust of the linear actuator into the pressure of the first pressure rod and the tension of the second pull rod respectively when driving the movable bed frame to rotate relative to the fixed bed frame.

[0010] In some embodiments, the first end of the first pull rod is connected to the fixed bed frame, and the second end of the first pull rod is arranged from top to bottom in a direction close to the movable bed frame, the first end of the second pull rod is connected to the fixed bed frame, and the second end of the second pull rod is connected to the second end of the first pull rod.

[0011] In some embodiments, the first end of the first pull rod is rotatably connected to the fixed bed frame, the second end of the first pull rod is rotatably connected to the second end of the second pull rod, and the first end of the second pull rod is detachably connected to the fixed bed frame.

[0012] In some embodiments, after the first end of the second pull rod is detached from the fixed bed frame, the second pull rod can be rotated to be sleeved or partially sleeved on the first pull rod.

[0013] In some embodiments, a hanging bracket is connected to the fixed bed frame, and a hook is provided on the hanging bracket. The first end of the second pull rod is connected to a hanging column, and the hanging column is hung on the hook.

[0014] In some embodiments, the second end of the second pull rod or the second end of the first pull rod is connected to a support arm extending downwardly from the movable bed frame, and the mounting point is disposed on a rotating shaft of the support arm.

[0015] In some embodiments, the fixed bed frame is connected to a first support tube extending along the length direction of the fixed bed frame, and the fixed bed frame is connected to a second support tube extending along the width direction of the fixed bed frame, and the second support tube is fixedly connected to an end of the first support tube close to the movable bed frame; the first end of the first pull rod is rotatably connected to the first support tube, and the first end of the second pull rod is connected to the second support tube; the movable bed frame is connected to a third support tube extending along the length direction of the movable bed frame, the third support tube and the first support tube are both located at the center of the bed frame, and the driving end of the linear actuator is rotatably connected to the third support tube; the first support tube, the third support tube, the first pull rod, the second pull rod and the actuator body are located in the same vertical plane.

[0016] In some embodiments, one end of the movable bed frame away from the fixed bed frame is slidably connected to a head support along the length direction of the movable bed frame.

[0017] In some embodiments, two side walls of the movable bed frame are provided with two slide grooves extending along the length direction of the movable bed frame respectively, the two connecting ends of the head support are slidably fitted in the two slide grooves respectively, and the movable bed frame is connected with connecting screws that fix the connecting ends of the head support in the slide grooves.

[0018] In some embodiments, at least one side of the movable bed frame is connected to a side guard frame, and the side guard frame includes a mounting frame connected to the movable bed frame and a U-shaped guard frame connected to the mounting frame, and the U-shaped guard frame is provided with a plurality of adjustment holes distributed along the height direction, and the adjustment holes are connected to the mounting frame through fasteners.

[0019] In summary, compared with the related art, the electric lifting and adjusting bed of the present application has the following advantages: the electric lifting and adjusting bed is connected to a cantilever assembly below the fixed bed frame, the cantilever assembly is composed of a first pull rod and a second pull rod, and the fixed bed frame, the first pull rod and the second pull rod form a triangular support structure; the connection between the first pull rod and the second pull rod forms a mounting point, the mounting point is located below the fixed bed frame and extends in the direction close to the movable bed frame, and the two ends of the linear actuator are respectively connected to the movable bed frame and the mounting point. Therefore, the setting of the cantilever assembly makes the mounting point of the linear actuator adjusted downward and set to the bottom close to the movable bed frame, so that when the movable bed frame is in the initial horizontal state, the tilt angle between the linear actuator and the movable bed frame increases, and the axial thrust of the linear actuator is more converted into the power for the rotation of the movable bed frame; in other words, the thrust of the linear actuator can be set smaller, that is, when the movable bed frame rotates upward from the initial horizontal state, the thrust of the linear actuator can be smaller. Furthermore, when the linear actuator drives the movable bed frame to rotate relative to the fixed bed frame, the reaction force of the axial thrust of the linear actuator is converted into the pressure of the first pull rod and the tension of the second pull rod. That is, the reaction force of the axial thrust of the linear actuator is dispersed to be shared by the first pull rod and the second pull rod, so that the force acting on the fixed bed frame through the first pull rod and the second pull rod will be greatly reduced, avoiding deformation of the fixed bed frame, so there is no need to make the thickness of the fixed bed frame larger, and the second pull rod is detachably connected to the hanger. When the electric lifting and adjusting bed is not installed, the first end of the second pull rod can be removed, and the first pull rod can be placed in a horizontal state. When the electric lifting and adjusting bed is folded and packaged, the volume is smaller and the transportation cost is lower. The first pull rod and the second pull rod of the cantilever assembly form a triangular support structure with the fixed bed frame, which not only further improves the support capacity and stability of the linear actuator, but also allows the installation point to be lowered to a lower height, further increases the inclination angle of the linear actuator, and further reduces the thrust of the linear actuator. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of an electric lifting and adjusting bed according to some embodiments of the present application.

[0021] Figure 2 yes Figure 1 Schematic diagram of the enlarged structure of part A in FIG.

[0022] Figure 3It is a schematic diagram of the bottom structure of an electric lifting and adjusting bed according to some embodiments of the present application.

[0023] Figure 4 yes Figure 3 Schematic diagram of the enlarged structure of part B in FIG.

[0024] Figure 5 It is a schematic diagram of the side structure of an electric lifting and adjusting bed according to some embodiments of the present application.

[0025] Figure 6 It is a schematic cross-sectional structure diagram of an electric lifting and adjusting bed according to some embodiments of the present application.

[0026] Figure 7 It is a schematic diagram of the installation structure of a cantilever assembly of an electric lifting and adjusting bed according to some embodiments of the present application.

[0027] Description of reference numerals:

[0028] 1. Bed frame, 100. Fixed bed frame, 101. Movable bed frame, 102. Head support, 103. Foot support, 104. Cross bar, 105. First support tube, 106. Second support tube, 107. Third support tube, 108. Slide, 2. Bed legs, 3. Side stop frame, 300. Mounting frame, 301. U-shaped stop frame, 302. Adjustment hole, 4. Head support, 400. Connecting end, 5. Cantilever assembly, 500. First pull rod, 501. Second pull rod, 502. Hanging column, 503. Support arm, 504. Rotating shaft, 505. Base, 6. Linear actuator, 600. Actuator body, 601. Driving end, 602. Driving motor, 7. Hanging bracket, 700. Hook. DETAILED DESCRIPTION

[0029] First, those skilled in the art should understand that these implementations are only used to explain the technical principles of the embodiments of the present application, and are not intended to limit the protection scope of the embodiments of the present application. Those skilled in the art can make adjustments to them as needed to adapt to specific application scenarios.

[0030] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" 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 directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0031] In the embodiments of the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0032] The present application is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] See also Figure 1 to Figure 7 As shown; the embodiment of the present application discloses an electric lifting and adjusting bed, the structure of which includes a bed frame 1, a cantilever assembly 5 and a linear actuator 6. The bed frame 1 includes a bed frame, a fixed bed frame 100 and a movable bed frame 101. The two ends of the bed frame are respectively connected with a head support 102 and a foot support 103. The fixed bed frame 100 and the movable bed frame 101 are connected to the bed frame in sequence, and the movable bed frame 101 rotates relative to the fixed bed frame 100 to adjust the angle. The movable bed frame 101 and the fixed bed frame 100 are both connected by a plurality of metal crosspieces 104, and the bottom of the bed frame is connected with a bed leg 2. When the movable bed frame 101 is in an initial state or a horizontal state, the movable bed frame 101 is aligned with the fixed bed frame 100 and is on the same horizontal plane. The movable bed frame 101 rotates relative to the fixed bed frame 100 under the drive of the linear actuator 6 to adjust the angle.

[0034] Further in this embodiment, Figure 1 and Figure 2 As shown, the fixed bed frame 100 is fixedly connected to the bed frame, the movable bed frame 101 is arranged at one end of the fixed bed frame 100 close to the bed head support 102, and the movable bed frame 101 is rotatably connected to the end of the fixed bed frame 100 through a hinge pin; the end of the movable bed frame 101 away from the fixed bed frame 100 is slidably connected to a U-shaped head support 4 along the length direction of the movable bed frame 101, and the head support 4 has two parallel connection ends 400. Specifically, two side walls of the movable bed frame 101 are provided with two slide grooves 108 extending along the length direction of the movable bed frame 101, and the two connection ends 400 of the head support 4 are respectively slidably matched in the two slide grooves 108, so that the head support 4 can be adjusted relative to the movable bed frame 101; the movable bed frame 101 is connected with a connection screw that fixes the connection end 400 of the head support 4 in the slide groove 108, and the connection screw is used to fix the head support 4 after the position of the head support 4 is adjusted. In this way, when the movable bed frame 101 is packaged, the packaging volume can be reduced, and the transportation cost can be reduced.

[0035] Furthermore, if Figure 2 As shown, at least one side of the movable bed frame 101 is connected to a side stop frame 3, which serves as an armrest to assist the user on the bed to get up and get out of bed; specifically, the side stop frame 3 includes a mounting frame 300 connected to the movable bed frame 101 and a U-shaped stop frame 301 connected to the mounting frame 300, and the U-shaped stop frame 301 is provided with a plurality of adjustment holes 302 distributed along the height direction, and the adjustment holes 302 are connected to the mounting frame 300 through fasteners. This arrangement allows the side stop frame 3 to adjust the height of the U-shaped stop frame 301 according to user needs.

[0036] In this embodiment, the cantilever assembly 5 is arranged below the fixed bed frame 100, and the cantilever assembly 5 is used to provide support for the linear actuator 6, that is, one end of the linear actuator 6 is rotatably connected to the movable bed frame 101, and the other end of the linear actuator 6 is rotatably connected to the mounting point on the cantilever assembly 5; specifically, Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the cantilever assembly 5 includes a first tie rod 500 and a second tie rod 501. The first tie rod 500 is an elongated rod having a first end and a second end opposite to the first end, and the second tie rod 501 is an elongated rod having a first end and a second end opposite to the first end. The first end of the first tie rod 500 is connected to the fixed bed frame 100, and the second end of the first tie rod 500 is arranged from top to bottom in a direction close to the movable bed frame 101. The first end of the second tie rod 501 is connected to the fixed bed frame 100, and the second end of the second tie rod 501 is connected to the second end of the first tie rod 500. Therefore, the fixed bed frame 100, the first tie rod 500 and the second tie rod 501 constitute a triangular support structure, and the connection between the second end of the second tie rod 501 and the second end of the first tie rod 500 forms an installation point. The installation point is located below the fixed bed frame 100 and extends toward the movable bed frame 101 . Both ends of the linear actuator 6 are connected to the movable bed frame 101 and the installation point respectively.

[0037] It is not difficult to understand that the setting of the triangular support structure of the cantilever assembly 5 makes the support stability of the installation point of the linear actuator 6 better, and the installation point can be adjusted downward to the maximum extent and set close to the lower part of the movable bed frame 101. In this way, when the movable bed frame 101 is in the initial horizontal state, the tilt angle between the linear actuator 6 and the movable bed frame 101 increases, and the axial thrust of the linear actuator 6 is more converted into the power for the movable bed frame 101 to rotate; in other words, the thrust of the linear actuator 6 can be set smaller, which can meet the power for the movable bed frame 101 to rotate upward from the initial horizontal state; that is, when the movable bed frame 101 rotates upward from the initial horizontal state, the thrust of the linear actuator 6 can be smaller. Therefore, the first pull rod 500 and the second pull rod 501 of the cantilever assembly 5 and the fixed bed frame 100 form a triangular support structure, which not only further improves the support capacity and stability of the linear actuator 6, but also allows the installation point to be lowered to a lower height, further increases the tilt angle of the linear actuator 6, and further reduces the thrust of the linear actuator 6.

[0038] Further in the present embodiment, the linear actuator 6, or linear motor or electric push rod, has a structure including a drive motor 602, an actuator body 600 and a drive end 601 that reciprocates axially relative to the actuator body 600. The drive motor 602 is transmission-connected to the actuator body 600 to drive the drive end 601 to reciprocate axially. The drive end 601 is rotationally connected to the movable bed frame 101, and the tail end of the actuator body 600 is rotationally connected to the mounting point. When the linear actuator 6 drives the movable bed frame 101 to rotate relative to the fixed bed frame 100, the reaction force of the thrust of the linear actuator 6 is converted into the pressure of the first pull rod 500 and the tension of the second pull rod 501 respectively. That is, the reaction force of the axial thrust of the linear actuator 6 is dispersed to be shared by the first pull rod 500 and the second pull rod 501. In this way, the force acting on the fixed bed frame 100 through the first pull rod 500 and the second pull rod 501 will be greatly reduced, avoiding deformation of the fixed bed frame 100. Therefore, there is no need to make the thickness of the fixed bed frame 100 larger. In this way, when the electric lifting and adjusting bed is folded and packaged, the volume is smaller and the transportation cost is lower.

[0039] It is understandable that if the mounting point of the cantilever assembly 5 is set lower, the distance from the mounting point of the cantilever assembly 5 to the fixed bed frame 100 is longer, which can increase the inclination angle of the linear actuator 6 and reduce the thrust of the linear actuator 6 in the initial state; however, when the bed frame 1 is folded and packaged, the cantilever assembly 5 will occupy more packaging space and increase the transportation cost. Therefore, in the embodiment of the present application, in order to solve the above problems, as Figure 4 , Figure 5 , Figure 6 and Figure 7As shown, the first end of the first tie rod 500 is rotatably connected to the fixed bed frame 100, the second end of the first tie rod 500 is rotatably connected to the second end of the second tie rod 501, and the first end of the second tie rod 501 is detachably connected to the fixed bed frame 100. Therefore, when the linear actuator 6 is used to drive the movable bed frame 101 to rotate, the first end of the second tie rod 501 can be connected to the fixed bed frame 100, so that the cantilever assembly 5 forms a stable triangular support structure; when the linear actuator 6 is not used to drive the movable bed frame 101 to rotate, such as when the electric lifting and adjusting bed is packaged at the factory, the first end of the second tie rod 501 can be disconnected from the fixed bed frame 100, and the first tie rod 500 can be placed horizontally, so that the installation point of the cantilever assembly 5 is moved upward, so that the thickness of the fixed bed frame 100 is reduced and the packaging volume is reduced.

[0040] For example, Figure 6 As shown, the first end of the second tie rod 501 is detachably connected to the fixed bed frame 100, which means that the fixed bed frame 100 is connected to the hanging frame 7, and the hanging frame 7 is provided with a hook 700, and the first end of the second tie rod 501 is connected to the hanging column 502, and the hanging column 502 is hung on the hook 700. When the hanging column 502 on the first end of the second tie rod 501 is hung on the hook 700 of the hanging frame 7, at this time, the first tie rod 500 and the second tie rod 501 and the fixed bed frame 100 form a triangular support structure, and when the hanging column 502 is removed from the hook 700, the installation point of the cantilever assembly 5 can move upward.

[0041] In other embodiments, the first end of the second pull rod 501 may be detachably connected to the fixed bed frame 100 in other ways, such as setting a bolt at the first end of the second pull rod 501, setting a mounting hole on the fixed bed frame 100, and connecting the bolt to the mounting hole through a nut.

[0042] Furthermore, after the first end of the second tie rod 501 is disassembled from the fixed bed frame 100, the second tie rod 501 can be rotated to be sleeved or partially sleeved on the first tie rod 500. In this way, after the first end of the second tie rod 501 is disconnected, the second tie rod 501 can be rotated to be sleeved on the first tie rod 500, and the first tie rod 500 can be rotated to a horizontal state, thereby further reducing the volume occupied by the cantilever assembly 5, making the fixed bed frame 100 smaller in packaging.

[0043] Furthermore, the connection between the second end of the second pull rod 501 and the second end of the first pull rod 500 forms an installation point, as shown in FIG. Figure 6 and Figure 7As shown, the second end of the second tie rod 501 or the second end of the first tie rod 500 is connected to a support arm 503 extending downwardly toward the movable bed frame 101, and the mounting point is set on the rotating shaft 504 of the support arm 503. In this embodiment, the support arm 503 is connected to the second end of the second tie rod 501 and extends downwardly toward the movable bed frame 101 along the axial direction of the second tie rod 501. In other embodiments, the support arm 503 may also be connected to the second end of the first tie rod 500 and extend downwardly toward the movable bed frame 101 along the axial direction of the first tie rod 500.

[0044] In some embodiments, in order to make the installation of the cantilever assembly 5 more stable and prevent the fixed bed frame 100 from deforming when the cantilever assembly 5 is subjected to the reaction force of the linear actuator 6, as shown in FIG. Figure 3 and Figure 7 As shown, a first support tube 105 extending along the length direction of the fixed bed frame 100 is connected to the fixed bed frame 100, and a second support tube 106 extending along the width direction of the fixed bed frame 100 is connected to the fixed bed frame 100, and the second support tube 106 is fixedly connected to one end of the first support tube 105 close to the movable bed frame 101; the first end of the first tie rod 500 is rotatably connected to the base 505 on the first support tube 105, and the first end of the second tie rod 501 is connected to the second support tube 106. In addition, in this embodiment, a third support tube 107 extending along the length direction of the movable bed frame 101 is connected to the movable bed frame 101, and the third support tube 107 and the first support tube 105 are both located at the center of the bed frame 1, and the driving end 601 of the linear actuator 6 is rotatably connected to the third support tube 107; the first support tube 105, the third support tube 107, the first tie rod 500, the second tie rod 501 and the actuator body 600 are located in the same vertical plane. The second end of the second pull rod 501 is detachably connected to the bracket 7 on the second support tube 106. Therefore, the arrangement of the first support tube 105, the second support tube 106 and the third support tube 107 not only makes the installation of the cantilever assembly 5 more stable and the bed frame 1 less likely to deform, but also makes the structure of the bed frame 1 more solid and stable.

[0045] In the description of the embodiments of the present application, it should be noted that in the description of the present application, terms such as "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is only for the convenience of description, and does not indicate or imply that the device or component must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present application.

[0046] In the description of the present application, the description with reference to the terms "one embodiment", "some embodiments", "in the present embodiment", "specific example", or "some examples" etc. means that the specific features, mechanisms, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, mechanisms, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0047] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. An electric lifting and adjusting bed, characterized in that: include A bed frame, comprising a fixed bed frame and a movable bed frame that rotates relative to the fixed bed frame to adjust the angle; A cantilever assembly is arranged below the fixed bed frame, and the cantilever assembly includes a first pull rod and a second pull rod; the fixed bed frame, the first pull rod and the second pull rod form a triangular support structure, and the connection between the second pull rod and the first pull rod forms a mounting point; A linear actuator comprises an actuator body and a driving end which reciprocates axially relative to the actuator body, wherein the driving end or the actuator body is rotationally connected to the movable bed frame, and the actuator body or the driving end is rotationally connected to the mounting point, and is used for converting the reaction force of the thrust of the linear actuator into the pressure of the first pressure rod and the tension of the second pull rod respectively when driving the movable bed frame to rotate relative to the fixed bed frame.

2. The electric lifting and adjusting bed according to claim 1, characterized in that: The first end of the first pull rod is connected to the fixed bed frame, and the second end of the first pull rod is arranged from top to bottom in a direction close to the movable bed frame, the first end of the second pull rod is connected to the fixed bed frame, and the second end of the second pull rod is connected to the second end of the first pull rod.

3. The electric lifting and adjusting bed according to claim 2, characterized in that: The first end of the first pull rod is rotatably connected to the fixed bed frame, the second end of the first pull rod is rotatably connected to the second end of the second pull rod, and the first end of the second pull rod is detachably connected to the fixed bed frame.

4. The electric lifting and adjusting bed according to claim 3, characterized in that: After the first end of the second pull rod is detached from the fixed bed frame, the second pull rod can be rotated to be sleeved or partially sleeved on the first pull rod.

5. The electric lifting and adjusting bed according to claim 3, characterized in that: The fixed bed frame is connected with a hanging bracket, and the hanging bracket is provided with a hook. The first end of the second pull rod is connected with a hanging column, and the hanging column is hung on the hook.

6. The electric lifting and adjusting bed according to claim 2, characterized in that: The second end of the second pull rod or the second end of the first pull rod is connected to a support arm extending downwardly from the movable bed frame, and the mounting point is arranged on a rotating shaft of the support arm.

7. The electric lifting and adjusting bed according to claim 2, characterized in that: The fixed bed frame is connected to a first support tube extending along the length direction of the fixed bed frame, and the fixed bed frame is connected to a second support tube extending along the width direction of the fixed bed frame, the second support tube is fixedly connected to an end of the first support tube close to the movable bed frame; the first end of the first pull rod is rotatably connected to the first support tube, and the first end of the second pull rod is connected to the second support tube; the movable bed frame is connected to a third support tube extending along the length direction of the movable bed frame, the third support tube and the first support tube are both located at the center of the bed frame, and the driving end of the linear actuator is rotatably connected to the third support tube; the first support tube, the third support tube, the first pull rod, the second pull rod and the actuator body are located in the same vertical plane.

8. The electric lifting and adjusting bed according to claim 1, characterized in that: One end of the movable bed frame away from the fixed bed frame is slidably connected to a head support along the length direction of the movable bed frame.

9. The electric lifting and adjusting bed according to claim 8, characterized in that: Two side walls of the movable bed frame are provided with two slide grooves extending along the length direction of the movable bed frame respectively, the two connecting ends of the head support are slidably fitted in the two slide grooves respectively, and the movable bed frame is connected with connecting screws that fix the connecting ends of the head support in the slide grooves.

10. The electric lifting and adjusting bed according to claim 1, characterized in that: At least one side of the movable bed frame is connected to a side baffle frame, and the side baffle frame includes a mounting frame connected to the movable bed frame and a U-shaped baffle frame connected to the mounting frame. The U-shaped baffle frame is provided with a plurality of adjustment holes distributed along the height direction, and the adjustment holes are connected to the mounting frame through fasteners.

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