Connecting structure for mounting seat and fixed bed frame of linear actuator of electric bed

Abstract

The utility model discloses a connecting structure for a mounting seat and a fixed bed frame of a linear actuator of an electric bed. One end of the mounting seat is hinged with one end of the linear actuator through a hinge pin; the other end of the mounting seat is propped against the fixed bed frame, and one part between the two ends of the mounting seat is buckled with the fixed bed frame; a transverse pin is arranged at the top between the two ends of the mounting seat, a hanging block is fixed on a middle transverse rod in the middle of the length of the fixed bed frame, and the top of the other end of the mounting seat is propped against the bottom surface of a seat plate longitudinal rod of a seat plate frame of the fixed bed frame; the mounting seat is a first C-shaped block which extends along the length direction and is provided with an upward opening, two first vertical plates at one end of the first C-shaped block are provided with a pair of hinge pin via holes, the transverse pin is accommodated in the transverse pin via holes of the first C-shaped block, and the two first vertical plates at the other end of the first C-shaped block are propped against the bottom surface of a longitudinal rod of a seat plate frame of the fixed bed frame. The mounting seat is detachable relative to the fixing frame, can be mounted and dismounted without the aid of tools, and is convenient to mount and dismount.

Description

Technical Field

[0001] The utility model relates to the technical field of beds, in particular to a connection structure between a mounting seat of a linear actuator of an electric bed and a fixed bed frame. Background Art

[0002] As people's quality of life improves, the functional requirements for beds are getting higher and higher. For example, before going to bed, people generally want to read books, watch TV or use their mobile phones in a semi-lying or sitting position, and when falling asleep, they want to lie flat. Therefore, the backboard is usually hinged to the fixed bed frame through the backboard frame or directly to the fixed bed frame, and then a linear actuator such as an electric push rod is used to drive the backboard to rise around its own hinge axis to a semi-lying or sitting position or to fall to a lying position. Generally, the legboard is also hinged to the fixed bed frame through the backboard frame or directly to the fixed bed frame, and then a linear actuator such as an electric push rod is used to drive the legboard to rise or fall around its own hinge axis. The legboard is generally driven by a linkage structure with the backboard drive or a structure that adds a linear actuator separately.

[0003] In the prior art, no matter whether one linear actuator or two linear actuators are used, the connection structure between the linear actuator and the electric bed frame is generally that one end of the linear actuator is hinged to a mounting seat, and the other end of the linear actuator is hinged to a rotating plate such as the back plate or leg board mentioned above, or is hinged to a rotating frame such as the back plate frame with a back plate fixed thereto or the leg board frame with a leg board fixed thereto.

[0004] However, the connection structure between the mounting base and the fixed bed frame of the electric bed linear actuator in the prior art has the following common shortcomings: the connection between the mounting base and the fixed bed frame adopts a welding and bolting structure, which cannot be disassembled during transportation and storage and needs to be packaged as a whole with the fixed bed frame, which increases the packaging volume and relatively increases the packaging, transportation and storage costs. It needs to be bolted and screwed, and installation and disassembly require the help of tools, making installation and disassembly relatively inconvenient. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a connection structure between a mounting seat and a fixed bed frame of an electric bed linear actuator, in which the mounting seat is detachable relative to a fixed frame and can be installed and removed without the aid of tools.

[0006] The technical solution of the utility model is to provide a connection structure between a mounting seat of a linear actuator of an electric bed and a fixed bed frame, wherein one end of the mounting seat is hinged to one end of the linear actuator via a hinge pin, the other end of the mounting seat is abutted against the fixed bed frame, and a portion between the two ends of the mounting seat is buckled with the fixed bed frame.

[0007] After adopting the above structure, the connection structure between the mounting seat of the electric bed linear actuator of the utility model and the fixed bed frame has the following advantages: since a portion between the two ends of the mounting seat, such as the middle of the length, is engaged with the fixed bed frame, and the top surface of the other end of the mounting seat is against the bottom surface of the fixed bed frame, the mounting seat can be disassembled relative to the fixed frame on the basis of ensuring that the connection structure is firm, stable and reliable, and can be disassembled before transportation and storage to relatively reduce the packaging volume, and relatively save packaging, transportation and storage costs. And since one part is abutted and the other part is hung, it can be installed or disassembled without the help of tools, making installation and disassembly relatively convenient.

[0008] Furthermore, there is a horizontal pin at the top between the two ends of the mounting seat, a hanging block is fixed on the middle horizontal bar in the middle of the length of the fixed bed frame, and the top of the other end of the mounting seat abuts against the bottom surface of a seat board longitudinal bar of the seat board frame of the fixed bed frame. After adopting the above specific snap-fit ​​structure, on the basis of ensuring that the connection structure is firm, stable and reliable, it is not necessary to use tools, making installation and disassembly more convenient.

[0009] Furthermore, the mounting seat is a first U-shaped block extending in the length direction and opening upward, a pair of hinge pin holes are provided on the two vertical plates at one end of the first U-shaped block, a pair of upward ear plates are provided in the middle of the first U-shaped block, a pair of transverse pin holes are provided on the pair of ear plates, the transverse pins are accommodated in the pair of transverse pin holes and are axially limited at both ends, and the top surfaces of the two first vertical plates at the other end of the first U-shaped block are abutment surfaces against the bottom surface of the seat frame longitudinal rod of the seat frame of the fixed bed frame. After the mounting seat adopts the above specific structure, the structure of the mounting seat itself is more solid, stable and reliable, and the attachment or removal of the transverse pins and the hanging block is more convenient.

[0010] Furthermore, a contact steel plate having a width greater than that of the rectangular steel tube of the seat frame longitudinal rod is fixed on the bottom surface of the rectangular steel tube of the seat frame of the bed frame. With the above specific structure, the contact between the first U-shaped block of the mounting seat and the bottom surface of the rectangular steel tube of the seat frame longitudinal rod of the bed frame is more stable, more reliable, and more convenient.

[0011] Furthermore, there is a flexible plate between the abutting surface of the abutting steel plate and the two first vertical plates at the other end of the first U-shaped block. After adopting the above structure, during the driving process of the linear actuator, the flexible plate can play a role in relative buffering, friction reduction and noise elimination for the force transmitted to the abutting surface of the mounting seat through the hinge shaft.

[0012] Furthermore, the hanging block is a second U-shaped block with an opening toward one side of the linear actuator, and a pair of U-shaped grooves with notches facing upwards are provided on the two second vertical plates of the second U-shaped block to accommodate the transverse pins. After the hanging block adopts the above specific structure, the hanging of the transverse pin is more secure and installation or removal is more convenient.

[0013] Furthermore, the U-shaped groove is inclined in a direction that the side close to the linear actuator is higher and the side away from the linear actuator is lower. With the above structure, the technical effect of more secure hanging of the cross pin and more convenient installation or removal is further ensured.

[0014] Furthermore, the top surface of the other end of the mounting seat is an inclined surface with a high inner side and a low outer side. With the above structure, the mounting angle of the mounting block is more convenient for the linear actuator to apply force, making the driving force of the linear actuator stronger, the driving more stable and reliable, and the mechanical properties of the mounting block better.

[0015] Furthermore, one end of the mounting seat is hinged to the rear end of the linear actuator housing. With the above structure, the linear actuator is connected to the fixed bed frame via the mounting seat, and the free end of the driving rod of the linear actuator is connected to the rotating plate or the rotating frame, which makes it easier for the linear actuator to apply force, making the driving force of the linear actuator stronger, more stable and more reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional structure diagram of the utility model when the connection structure is applied to an electric bed. Figure 1 (Omit the back plate and leg plate, etc. Figure 2-Figure 7 Same).

[0017] Figure 2 yes Figure 1 Schematic diagram of the enlarged structure of A.

[0018] Figure 3 This is a three-dimensional structure diagram of the utility model when the connection structure is applied to an electric bed. Figure 2 .

[0019] Figure 4 yes Figure 3 Schematic diagram of the enlarged structure of B.

[0020] Figure 5 yes Figure 3 A three-dimensional structural schematic diagram of a connecting structure in the utility model is exploded.

[0021] Figure 6 yes Figure 5 A magnified schematic diagram of the exploded structure in center C.

[0022] Figure 7 yes Figure 6 A schematic diagram of the explosion structure from a different angle.

[0023] As shown in the figure:

[0024] 1. Bed frame assembly, 11. Fixed bed frame, 111. Middle cross bar, 112. Frame longitudinal bar, 113. Frame cross bar, 114. Seat frame, 1141. Seat frame longitudinal bar;

[0025] 2. Linear actuator, 21. Housing, 22. Driving rod;

[0026] 3. hinge pin, 31. hinge pin body, 311. shaft shoulder, 312. cotter pin through hole, 32. cotter pin, 33. washer;

[0027] 4. Connecting structure, 41. Horizontal pin, 411. Nut, 42. First U-shaped block, 421. First vertical plate, 4211. Hinge pin hole, 4212. Ear plate, 42121. Horizontal pin hole, 4213. Top surface, 43. Second U-shaped block, 431. Second vertical plate, 4311. U-shaped groove, 43111. Arc angle, 44. Abutting steel plate, 45. Flexible plate. DETAILED DESCRIPTION

[0028] The specific implementation methods of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these specific implementation methods is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in each specific implementation method of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0029] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 shown.

[0030] The end of the rotating plate of the electric bed in the prior art close to the fixed bed frame 11 is generally hinged to the fixed bed frame 11 via a rotating plate frame or the rotating plate, and the linear actuator 2 is used to drive the rotating plate to rise or fall around its own hinge axis. The rotating plate generally includes a back plate, a thigh plate and a calf plate, and the rotating frame generally includes a back plate frame 12 fixed with a back plate, a thigh plate frame 13 fixed with a thigh plate and a calf plate frame 14 fixed with a calf plate, the back plate frame 12 or the end of the back plate close to the fixed bed frame 11 is hinged to the fixed bed frame 11, the thigh plate frame 13 or the end of the thigh plate close to the fixed bed frame 11 is hinged to the fixed bed frame 11, the calf plate frame 14 or the end of the calf plate close to the fixed bed frame 11 is hinged to the fixed bed frame 11, the thigh plate frame 13 and the calf plate frame 12 are hinged to each other, or the thigh plate frame and the calf plate are hinged to each other. One end of the linear actuator 2 is hinged to a mounting seat 11, and the other end of the linear actuator 2 is hinged to a rotating plate frame or a rotating plate. If one linear actuator 2 is used, the other end of the linear actuator 2 is generally hinged to the back plate frame 12 or the back plate. If two linear actuators are used, the other end of the other linear actuator is generally hinged to the thigh plate frame 13 or the thigh plate. The fixed bed frame 11 generally includes a frame and a middle crossbar 111 fixed in the middle of the frame length. The frame generally includes a frame longitudinal bar 112 and a frame crossbar 113. In addition, since the seat frame 114 or the seat itself for fixing the seat is generally fixed in the middle of the length of the two frame longitudinal bars 112 of the frame, the seat frame 114 or the seat itself is generally regarded as a part of the fixed bed frame 11, that is, it can be understood that the fixed bed frame 11 generally includes a frame longitudinal bar 112, a frame crossbar 113, a middle crossbar 111 and a seat frame 114 or a seat. The connection structure 4 between the mounting seat of the linear actuator of the electric bed of the present invention and the fixed bed frame has one end of the mounting seat hinged to one end of the linear actuator 2 via a hinge pin 3. The other end of the linear actuator 2 of the present invention is hinged to a rotating frame such as a backboard frame 12 or a rotating plate such as a backboard. It is not difficult to understand that if an electric bed has only one linear actuator 2, there is only one mounting seat of the linear actuator, and the hinge relationship between the two ends is that one end of the mounting seat described above is hinged to one end of the linear actuator 2 via a hinge pin 3, and the other end of the linear actuator 2 is hinged to a rotating frame such as a backboard frame 12 or a rotating plate such as a backboard, and then the linkage structure between the backboard and the leg board drives the thigh board to be linked. If an electric bed has two linear actuators, there are two mounting seats of the linear actuator, and the hinge relationship between the two ends of the other linear actuator is that one end of the other mounting seat is hinged to one end of the other linear actuator via a hinge pin, and the other end of the other linear actuator is hinged to a rotating frame such as a thigh board frame or a rotating plate such as a thigh board. For the convenience of description, the fixed bed frame 11, the back frame 12, the thigh frame 13 and the calf frame 15 mentioned above are collectively referred to as a bed frame assembly 1. The above is the prior art.

[0031] Regardless of whether an electric bed has one mounting seat or two mounting seats, etc., the connection structure 4 between each mounting seat and the fixed bed frame is the structure described below.

[0032] The inventive points of the utility model are as follows.

[0033] The connection structure 4 of the mounting seat of the electric bed linear actuator and the fixed bed frame of the utility model has one end of the mounting seat hinged with one end of the linear actuator via a hinge pin, the other end of the mounting seat abuts against the fixed bed frame 11, and a portion between the two ends of the mounting seat, such as the middle of the length, is buckled with the fixed bed frame 11. The mounting seat is also called a sheet metal connector.

[0034] There is a horizontal pin 41 at the top between the two ends of the mounting seat, such as the top in the middle of the length, and the middle cross bar 111 in the middle of the length of the fixed bed frame 11, specifically the middle of the length of the two side frame longitudinal bars 112, is fixed with a hanging block such as the second U-shaped block 43 described below, and the top of the other end of the mounting seat such as the first U-shaped block 42 described below is abutted against the bottom surface of a seat frame longitudinal bar 1141 of the seat frame 114 of the fixed bed frame 11, or the top of the other end of the mounting seat such as the first U-shaped block described below is directly abutted against a steel plate on the bottom surface of the seat board.

[0035] The mounting seat is preferably a first U-shaped block 42 extending in the length direction and opening upward, a pair of two hinge pin holes 4211 are provided on two vertical plates 421 at one end of the first U-shaped block 42, a pair of upward ear plates 4212 are provided in the middle of the first U-shaped block 42, a pair of transverse pin holes 42121 are provided on the pair of ear plates 4212, the transverse pin 41 is accommodated in the pair of transverse pin holes 42121 and axially limited at both ends, such as the external threads at both ends of the transverse pin 41 are provided with nuts 411 for tightening, and the top surface 4213 of the two first vertical plates 421 at the other end of the first U-shaped block 42 is abutting against the bottom surface of the seat frame longitudinal rod 1141 of the seat frame 114 of the fixed bed frame 11. The transverse pin 41 can also have nuts 411 at both ends.

[0036] A contact steel plate 44 having a width greater than that of the rectangular steel tube of the seat frame longitudinal rod 1141 of the seat frame 114 of the fixed bed frame 11 is fixed on the bottom surface of the rectangular steel tube.

[0037] There is a flexible plate 45 between the abutting surface of the abutting steel plate 44 and the two first vertical plates 421 at the other end of the first U-shaped block 42, that is, the top surface 4213.

[0038] The hook block is a second U-shaped block 43 with an opening toward one side of the linear actuator 2. The two second vertical plates 431 of the second U-shaped block 43 have a pair of two U-shaped grooves 4311 with notches facing upwards to accommodate the transverse pins 41. The two entrances of each U-shaped groove 4311 can be chamfered or arc-shaped corners 43111.

[0039] The U-shaped groove 4311 is preferably inclined in a direction in which the side close to the linear actuator 2 is higher and the side away from the linear actuator 2 is lower.

[0040] The top surface 4213, i.e., the top connection surface, of the other end of the mounting seat, such as the first U-shaped block 42, is a slope that is higher inside and lower outside.

[0041] The mounting seat is hinged to the tail end of the housing 21 of the linear actuator 2, such as one end of the first U-shaped block 42, and the hinge pin 3 passes through a pair of two hinge pin holes 4211 on the two first vertical plates 421 at one end of the first U-shaped block 42 and the hinge pin hole 4211 at the tail end of the housing 21 of the linear actuator 2. The hinge pin 3 includes a hinge pin body 31, one end of the hinge pin body 31 is axially limited by a shaft shoulder 311, and the cotter pin 32 is inserted into the cotter pin hole 312 at the other end of the hinge pin body 31 for axial limitation. The two first vertical plates 421 at one end of the first U-shaped block 42 and the tail end of the housing 21 of the linear actuator 2 each have a washer 33. The free end of the driving rod 22 of the linear actuator 2 is hinged to the back plate frame 12 (because it is a prior art, it will not be described in detail).

[0042] The first U-shaped block 42 may be referred to as a first U-shaped plate, and the second U-shaped block 43 may be referred to as a second U-shaped plate.

[0043] It is not difficult to understand that the above specific structure allows various changes.

[0044] For example, the middle part of the length of the mounting seat is buckled with the fixed bed frame. In addition to the buckle of the horizontal pin and the U-shaped groove of the hanging block mentioned above, it can also be a horizontal pin through-hole buckle between the horizontal pin and the hanging block, and the two vertical plates of the mounting seat can also extend upward to form two hooks and be buckled on the hanging block, etc.

[0045] For another example, the mounting seat may also be a U-shaped block or a rectangular steel pipe extending along the length direction and opening upward.

[0046] The abutting steel plate can also be directly fixed on the top surface of the other end of the mounting seat. The other end of the mounting seat and the fixed bed frame can also be a male-female sleeve structure.

[0047] The flexible plate 45 can also be replaced by a magnet plate to be attracted to the other end of the mounting seat of the sheet metal part.

[0048] The top surface of the other end of the mounting seat can also be a horizontal plane or an inclined plane with the inner side facing the outer side higher, etc. according to the needs of angle change.

[0049] The linear actuator 2 is also called a linear drive. The hinge pin 3 is also called a pivot pin or a rotation pin.

[0050] The above unmarked parts, structures or quantities are not shown in the drawings, and some parts are not marked in the drawings. The drawings are only for reference only. If there is any inconsistency between the drawings and the text description or between the drawings, the text description shall prevail.

[0051] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. For those skilled in the art, the utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A connection structure between a mounting base of a linear actuator of an electric bed and a fixed bed frame, wherein one end of the mounting base is hinged to one end of the linear actuator via a hinge pin, and is characterized in that: The other end of the mounting seat abuts against the fixed bed frame, and a portion between the two ends of the mounting seat is buckled with the fixed bed frame.

2. The connection structure of the mounting base of the electric bed linear actuator and the fixed bed frame according to claim 1, characterized in that: A horizontal pin is arranged at the top between the two ends of the mounting seat, a hanging block is fixed on the middle horizontal rod in the middle of the length of the fixed bed frame, and the top of the other end of the mounting seat abuts against the bottom surface of a seat plate longitudinal rod of the seat plate frame of the fixed bed frame.

3. The connection structure between the mounting base of the electric bed linear actuator and the fixed bed frame according to claim 2, characterized in that: The mounting seat is a first U-shaped block extending in the length direction and opening upward, a pair of hinge pin holes are provided on the two first vertical plates at one end of the first U-shaped block, a pair of upward ear plates are provided in the middle of the first U-shaped block, a pair of cross pin holes are provided on the pair of ear plates, the cross pins are accommodated in the pair of cross pin holes and are axially limited at both ends, and the top surface of the two first vertical plates at the other end of the first U-shaped block is abutting surface against the bottom surface of the seat frame longitudinal rod of the seat frame of the fixed bed frame.

4. The connection structure between the mounting base of the electric bed linear actuator and the fixed bed frame according to claim 3, characterized in that: A contact steel plate with a width greater than that of the rectangular steel pipe of the seat frame longitudinal rod is fixed on the bottom surface of the rectangular steel pipe of the seat frame longitudinal rod of the seat frame of the fixed bed frame.

5. The connection structure between the mounting base of the electric bed linear actuator and the fixed bed frame according to claim 4, characterized in that: There is a flexible plate between the abutting surfaces of the abutting steel plate and the two first vertical plates at the other end of the first U-shaped block.

6. The connection structure between the mounting base of the electric bed linear actuator and the fixed bed frame according to claim 2, characterized in that: The hanging block is a second U-shaped block with its opening facing one side of the linear actuator. A pair of U-shaped grooves accommodating transverse pins and with notches facing upwards are provided on the two second vertical plates of the second U-shaped block.

7. The connection structure between the mounting base of the linear actuator of the electric bed and the fixed bed frame according to claim 6, characterized in that: The U-shaped groove is inclined in a direction in which a side close to the linear actuator is higher and a side away from the linear actuator is lower.

8. The connection structure between the mounting base of the electric bed linear actuator and the fixed bed frame according to claim 1, characterized in that: The top surface of the other end of the mounting seat is a slope that is higher inside and lower outside.

9. The connection structure between the mounting base of the electric bed linear actuator and the fixed bed frame according to claim 1, characterized in that: One end of the mounting base is hinged to the rear end of the linear actuator housing.

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