A three-slide two-stage transmission vertical lifting structure

Abstract

The present invention proposes a three-slide two-stage transmission vertical lifting structure, wherein the front and rear sides of the bottom end of the bed frame are respectively provided with a second bed frame slide, and the front and rear sides of the base are respectively provided with a base slide; the first support lifting mechanism at least includes a first support frame, the left end of the first support frame is rotatably installed on the left side of the base through a pin shaft seat, the right end of the first support frame is installed in the second bed frame slide through a first pin shaft and an end-mounted bearing wheel, and the front and rear sides of the first support frame are also provided with a first slide; the second support lifting mechanism at least includes a second support frame, the right ends of the second support frame are respectively installed in the base slide through a base pin shaft and an end-mounted bearing wheel, the left end of the second support frame is installed in the second bed frame slide through a fourth pin shaft and an end-mounted bearing wheel, and the front and rear sides of the second support frame are also provided with a second slide. The present invention can achieve the purpose of vertical lifting of the bed frame through the two-stage transmission of the first support lifting mechanism and the second support lifting mechanism.

Description

Technical Field

[0001] The invention relates to a three-slide groove two-stage transmission vertical lifting structure. Background Art

[0002] The existing lifting structures include scissor type, gear rack type and wire rope type. During the operation, they have the disadvantages of poor bearing capacity, large component deformation, large body vibration, poor operating stability and high hydraulic system pressure value, which have certain limitations in practical applications. At the same time, it is difficult to control the lifting structure to make a completely vertical lifting movement. Summary of the invention

[0003] In order to solve the above problems, the present invention proposes a three-slide two-stage transmission vertical lifting structure, which can achieve the purpose of vertical lifting of the bed frame through the two-stage transmission of the first supporting lifting mechanism and the second supporting lifting mechanism.

[0004] The technical solution of the present invention is achieved in this way:

[0005] A three-slide two-stage transmission vertical lifting structure, comprising a first supporting lifting mechanism and a second supporting lifting mechanism symmetrically connected between a bed frame 1 and a base 2, wherein the front and rear sides of the bottom end of the bed frame 1 are respectively provided with a second bed frame slide 4, and the front and rear sides of the base 2 are respectively provided with a base slide 5;

[0006] The first support lifting mechanism at least includes a first support frame 81, the left end of the first support frame 81 is rotatably mounted on the left side of the base 2 through a pin shaft seat, the right end of the first support frame 81 is mounted in the second bed frame slide groove 4 through a first pin shaft and an end-mounted bearing wheel 91, and the first support frame 81 is also provided with a first slide groove 71 on both sides of the front and rear;

[0007] The second supporting lifting mechanism includes at least a second supporting frame 82, and the two sides of the right end of the second supporting frame 82 are respectively installed in the base slide groove 5 through the base pin shaft and the end-mounted bearing wheel 10, and the left end of the second supporting frame 82 is installed in the second bed frame slide groove 4 through the fourth pin shaft and the end-mounted bearing wheel 92, and the second support frame 82 is also provided with a second slide groove 72 on the front and rear sides.

[0008] Preferably, the front and rear sides of the bottom end of the bed frame 1 are respectively provided with parallel first bed frame slide grooves 3, and one end of the two first connecting rods 31 is rotatably installed on the front and rear sides of the left end of the bed frame 1 through the pin shaft seat; one end of the two second connecting rods 41 is respectively installed in the first bed frame slide groove 3 through the second pin shaft and the end-mounted bearing wheel 121; one end of the two third connecting rods 61 is respectively installed in the two first slide grooves 71 through the third pin shaft and the end-mounted bearing wheel 111, and a first connecting frame 131 is provided between the two third connecting rods 61;

[0009] Among them, the other ends of the two second connecting rods 41 are rotatably installed on the second pin shaft and the pin shaft of the end-mounted bearing wheel 121, the other end of the first connecting rod 31 is rotatably installed on the second connecting rod 41 through the pin shaft, and the other end of the second connecting rod 41 is rotatably installed on the first support frame 81 through the pin shaft; the first electric telescopic rod 51 is rotatably installed on the bed frame 1 through the pin shaft seat, and the telescopic end of the first electric telescopic rod 51 is rotatably installed on the first connecting frame 131 through the pin shaft seat.

[0010] Preferably, the front and rear sides of the bottom end of the bed frame 1 are respectively provided with parallel first bed frame slide grooves 3, one end of the two fourth connecting rods 32 are respectively rotatably installed on the front and rear sides of the right end of the bed frame 1 through the pin shaft seat; one end of the two fifth connecting rods 42 are respectively installed in the first bed frame slide groove 3 through the fifth pin shaft and the end-mounted bearing wheel 122; one end of the two sixth connecting rods 62 are respectively installed in the two second slide grooves 72 through the sixth pin shaft and the end-mounted bearing wheel 112, and a second connecting frame 132 is provided between the two sixth connecting rods 62;

[0011] Among them, the other ends of the two fifth connecting rods 42 are rotatably installed on the fifth pin shaft and the pin shaft of the end-mounted bearing wheel 122, the other end of the fourth connecting rod 32 is rotatably installed on the fifth connecting rod 42 through the pin shaft, and the other end of the fifth connecting rod 42 is rotatably installed on the second support frame 82 through the pin shaft; the second electric telescopic rod 52 is rotatably installed on the bed frame 1 through the pin shaft seat, and the telescopic end of the second electric telescopic rod 52 is rotatably installed on the second connecting frame 132 through the pin shaft seat.

[0012] Preferably, the first sliding groove 71 and the second sliding groove 72 are both U-shaped, and their openings are toward an end away from the base 2 .

[0013] Preferably, the first electric telescopic rod 51 is located on the right side of the bed frame with the telescopic end facing the left side, and the second electric telescopic rod 52 is located on the left side of the bed frame with the telescopic end facing the right side.

[0014] The beneficial effects of the present invention are as follows: through the telescopic movement of the two electric telescopic rods, the third connecting rod and the sixth connecting rod are pushed toward the two ends respectively, thereby realizing the movement of the second connecting rod and the fifth connecting rod in the opposite directions in the first bed frame slide groove, and the third connecting rod and the sixth connecting rod also slide in the first slide groove and the second slide groove respectively, driving the first support frame and the second support frame to rotate around the pin shaft seat and be in a raised state respectively, thereby realizing the purpose of the first-stage transmission lifting; subsequently, one end of the first support frame rotates around the pin shaft seat on the base, and the other end slides to the left (i.e., the direction of the end of the bed shown in the figure) in the second bed frame slide groove, and the other end of the sixth connecting rod cannot slide in the first slide groove (reaching the limit bottom), thereby driving the second support frame to slide in the base slide groove toward the end of the bed, and one end connected to the second bed frame slide groove slides toward the head of the bed, thereby forming the second-stage transmission lifting. The entire lifting process is realized by vertical two-stage transmission, thereby ensuring the stability and verticality of the lifting. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the structural explosion of the present invention.

[0017] Figure 2 It is a schematic diagram of the present invention when it is reduced to the lowest level.

[0018] Figure 3 It is a schematic diagram of the present invention in the first-stage transmission rising state.

[0019] Figure 4 It is a schematic diagram of the present invention in the secondary transmission rising state.

[0020] Figure 5 for Figure 4 Enlarged view of point A in the middle. DETAILED DESCRIPTION

[0021] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] like Figure 1-5The three-slide two-stage transmission vertical lifting structure shown in the figure comprises a first supporting lifting mechanism and a second supporting lifting mechanism symmetrically arranged between a bed frame 1 and a base 2, wherein the front and rear sides of the bottom end of the bed frame 1 are respectively provided with a second bed frame slide 4, and the front and rear sides of the base 2 are respectively provided with a base slide 5; the first supporting lifting mechanism comprises at least a first supporting frame 81, the left end of the first supporting frame 81 is rotatably mounted on the left side of the base 2 through a pin shaft seat, the right end of the first supporting frame 81 is mounted in the second bed frame slide 4 through a first pin shaft and an end-mounted bearing wheel 91, and the front and rear sides of the first supporting frame 81 are also provided with a first slide 71; the second supporting lifting mechanism comprises at least a second supporting frame 82, the right sides of the second supporting frame 82 are respectively mounted in the base slide 5 through a base pin shaft and an end-mounted bearing wheel 10, the left end of the second supporting frame 82 is mounted in the second bed frame slide 4 through a fourth pin shaft and an end-mounted bearing wheel 92, and the front and rear sides of the second supporting frame 82 are also provided with a second slide 72.

[0023] In this embodiment, the front and rear sides of the bottom end of the bed frame 1 are respectively provided with parallel first bed frame slide grooves 3, and one end of the two first connecting rods 31 is rotatably installed on the front and rear sides of the left end of the bed frame 1 through the pin shaft seat; one end of the two second connecting rods 41 is respectively installed in the first bed frame slide groove 3 through the second pin shaft and the end-mounted bearing wheel 121; one end of the two third connecting rods 61 is respectively installed in the two first slide grooves 71 through the third pin shaft and the end-mounted bearing wheel 111, and a first connecting frame 131 is provided between the two third connecting rods 61;

[0024] Among them, the other ends of the two second connecting rods 41 are rotatably installed on the second pin shaft and the pin shaft of the end-mounted bearing wheel 121, the other end of the first connecting rod 31 is rotatably installed on the second connecting rod 41 through the pin shaft, and the other end of the second connecting rod 41 is rotatably installed on the first support frame 81 through the pin shaft; the first electric telescopic rod 51 is rotatably installed on the bed frame 1 through the pin shaft seat, and the telescopic end of the first electric telescopic rod 51 is rotatably installed on the first connecting frame 131 through the pin shaft seat.

[0025] In this embodiment, the front and rear sides of the bottom end of the bed frame 1 are respectively provided with parallel first bed frame slide grooves 3, and one end of the two fourth connecting rods 32 is rotatably installed on the front and rear sides of the right end of the bed frame 1 through the pin shaft seat; one end of the two fifth connecting rods 42 is respectively installed in the first bed frame slide groove 3 through the fifth pin shaft and the end-mounted bearing wheel 122; one end of the two sixth connecting rods 62 is respectively installed in the two second slide grooves 72 through the sixth pin shaft and the end-mounted bearing wheel 112, and a second connecting frame 132 is provided between the two sixth connecting rods 62;

[0026] Among them, the other ends of the two fifth connecting rods 42 are rotatably installed on the fifth pin shaft and the pin shaft of the end-mounted bearing wheel 122, the other end of the fourth connecting rod 32 is rotatably installed on the fifth connecting rod 42 through the pin shaft, and the other end of the fifth connecting rod 42 is rotatably installed on the second support frame 82 through the pin shaft; the second electric telescopic rod 52 is rotatably installed on the bed frame 1 through the pin shaft seat, and the telescopic end of the second electric telescopic rod 52 is rotatably installed on the second connecting frame 132 through the pin shaft seat.

[0027] In this embodiment, the first slide groove 71 and the second slide groove 72 are both U-shaped, and the opening is facing the end away from the base 2; the first electric telescopic rod 51 is on the right side of the bed frame and the telescopic end is facing the left side, and the second electric telescopic rod 52 is on the left side of the bed frame and the telescopic end is facing the right side.

[0028] The specific working state of the present invention during operation is as follows: when the whole bed lifting key is pressed, the first supporting lifting mechanism and the second supporting lifting mechanism start the first stage transmission respectively.

[0029] In the first support and lifting mechanism, the telescopic end of the electric telescopic rod 51 extends out, pushing the second connecting rod 41 to move, and then slides toward the end of the bed in the first bed frame slide groove 3 through the second pin and the end-mounted bearing wheel 121, and the third pin of the third connecting rod 61 and the end-mounted bearing wheel 111 slide toward the end of the bed in the first slide groove 71 of the first support frame 81 (shown as sliding downward toward the end of the bed); at the same time, the left end of the first support frame 81 rotates at one end of the base 2, and the other end moves toward the end of the bed on the second bed frame slide groove 4 through the first pin and the end-mounted bearing wheel 91; at this time, the movement relationship of the second support and lifting mechanism is similar to the first support structure, extending toward the head of the bed through the telescopic end of the second electric telescopic rod 52, except that one end of the second support frame 82 in the base slide groove 5 slides toward the head of the bed, and the other end slides toward the end of the bed through the fourth pin and the end-mounted bearing wheel 92. That is, through the entire first support and lifting mechanism and the second support and lifting mechanism in the posture of rising and stretching, the bed frame is driven to rise vertically, and the whole process forms a first-level transmission vertical rise.

[0030] When the entire bed continues to rise, the third pin shaft and the end-mounted bearing wheel 111 of the third connecting rod 61 in the first supporting mechanism slide to the end of the first slide groove 71 and stop sliding, and the first supporting frame 81 slowly rises, and the second pin shaft and the end-mounted bearing wheel 121 on the second connecting rod 41 are also unable to slide in the first bed frame slide groove 3; similarly, the sixth pin shaft and the end-mounted bearing wheel 112 of the sixth connecting rod 62 in the second supporting mechanism slide to the end of the second slide groove 72 and stop sliding, and the second supporting frame 82 slowly rises, and the fifth pin shaft and the end-mounted bearing wheel 122 on the fifth connecting rod 42 are also unable to slide in the first bed frame slide groove 3, entering the secondary transmission.

[0031] The whole bed continues to rise, the first support frame 81 connected to the base part rotates, the first support frame 81 is connected to the second bed frame slide groove 4, the first pin shaft and the end-mounted bearing wheel 91 rotate relatively and slide toward the end of the bed; at the same time, the second support frame 82 is connected to the base pin shaft of the base slide groove 5 and the end-mounted bearing wheel 10 rotate and slide toward the end of the bed, the fourth pin shaft connected to the second bed frame slide groove 4 part and the end-mounted bearing wheel 92 rotate relatively and slide toward the head of the bed. This is a two-stage transmission. Only when the two slides slide until the whole bed rises to the highest point.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A three-slot two-stage transmission vertical lifting structure, characterized in that: The invention comprises a first supporting and lifting mechanism and a second supporting and lifting mechanism which are symmetrically arranged and connected between a bed frame (1) and a base (2); the front and rear sides of the bottom end of the bed frame (1) are respectively provided with a second bed frame slide groove (4); the front and rear sides of the base (2) are respectively provided with a base slide groove (5); The first support lifting mechanism at least comprises a first support frame (81), the left end of the first support frame (81) is rotatably mounted on the left side of the base (2) through a pin shaft seat, the right end of the first support frame (81) is mounted in the second bed frame slide groove (4) through a first pin shaft and an end-mounted bearing wheel (91), and first slide grooves (71) are also provided on the front and rear sides of the first support frame (81); The second support lifting mechanism comprises at least a second support frame (82), the right ends of the second support frame (82) are respectively installed in the base slide groove (5) through the base pin shaft and the end-mounted bearing wheel (10), the left end of the second support frame (82) is installed in the second bed frame slide groove (4) through the fourth pin shaft and the end-mounted bearing wheel (92), and the second support frame (82) is also provided with a second slide groove (72) on the front and rear sides; The front and rear sides of the bottom end of the bed frame (1) are respectively provided with parallel first bed frame slide grooves (3); one end of the two first connecting rods (31) are rotatably mounted on the front and rear sides of the left end of the bed frame (1) through a pin shaft seat; one end of the two second connecting rods (41) are respectively mounted in the first bed frame slide grooves (3) through a second pin shaft and an end-mounted bearing wheel (121); one end of the two third connecting rods (61) are respectively mounted in the two first slide grooves (71) through a third pin shaft and an end-mounted bearing wheel (111); a first connecting frame (131) is provided between the two third connecting rods (61); The other ends of the two second connecting rods (41) are rotatably mounted on the second pin shaft and the pin shaft of the end-mounted bearing wheel (121); the other end of the first connecting rod (31) is rotatably mounted on the second connecting rod (41) through the pin shaft; the other end of the second connecting rod (41) is rotatably mounted on the first supporting frame (81) through the pin shaft; the first electric telescopic rod (51) is rotatably mounted on the bed frame (1) through the pin shaft seat; the telescopic end of the first electric telescopic rod (51) is rotatably mounted on the first connecting frame (131) through the pin shaft seat; One end of the two fourth connecting rods (32) is rotatably mounted on the front and rear sides of the right end of the bed frame (1) through a pin shaft seat; one end of the two fifth connecting rods (42) is correspondingly mounted in the first bed frame slide groove (3) through a fifth pin shaft and an end-mounted bearing wheel (122); one end of the two sixth connecting rods (62) is correspondingly mounted in the two second slide grooves (72) through a sixth pin shaft and an end-mounted bearing wheel (112), and a second connecting frame (132) is provided between the two sixth connecting rods (62); The other ends of the two fifth connecting rods (42) are rotatably mounted on the fifth pin shaft and the pin shaft of the end-mounted bearing wheel (122); the other end of the fourth connecting rod (32) is rotatably mounted on the fifth connecting rod (42) through the pin shaft; the other end of the fifth connecting rod (42) is rotatably mounted on the second supporting frame (82) through the pin shaft; the second electric telescopic rod (52) is rotatably mounted on the bed frame (1) through the pin shaft seat; the telescopic end of the second electric telescopic rod (52) is rotatably mounted on the second connecting frame (132) through the pin shaft seat; The first sliding groove (71) and the second sliding groove (72) are both U-shaped, and their openings are directed toward an end away from the base (2).

2. A three-slide two-stage transmission vertical lifting structure as claimed in claim 1, characterized in that: The first electric telescopic rod (51) is located on the right side of the bed frame with its telescopic end facing the left side, and the second electric telescopic rod (52) is located on the left side of the bed frame with its telescopic end facing the right side.

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