CN110693233A - Three-chute two-stage transmission vertical lifting structure - Google Patents

Abstract

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

Description

A three-chute two-stage transmission vertical lifting structure

technical field

The invention relates to a vertical lifting structure with three chutes and two-stage transmission.

Background technique

At present, the existing lifting structures include scissor type, rack and pinion type and wire rope type. In the process of work, there are disadvantages such as poor bearing capacity, large deformation of components, large body vibration, poor operation stability and high pressure value of hydraulic system. There are certain limitations in the application; at the same time, it is difficult to control the lifting structure to make a completely vertical lifting motion.

SUMMARY OF THE INVENTION

In order to solve the above problems, the present invention proposes a vertical lifting structure with three chutes and two-stage transmission. The purpose of vertical lifting of the bed frame can be achieved through the two-stage transmission of the first supporting lifting mechanism and the second supporting lifting mechanism.

The technical scheme of the present invention is realized as follows:

A three-chute two-stage transmission vertical lifting structure, including a symmetrically arranged first support lifting mechanism and a second support lifting mechanism connected between the bed frame 1 and the base 2, and the front and rear sides of the bottom end of the bed frame 1 are respectively provided. There is a second bed frame chute 4, and the front and rear sides of the base 2 are respectively provided with base chute 5;

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, and the right end of the first support frame 81 is rotated through the first pin shaft and The end-mounted bearing wheel 91 is installed in the second bed frame chute 4, and the front and rear sides of the first support frame 81 are also provided with a first chute 71;

The second support lifting mechanism includes at least a second support frame 82, and both sides of the right end of the second support frame 82 are respectively installed in the base chute 5 through the base pin and the end mounting bearing wheel 10. The second support The left end of the frame 82 is installed in the second bed frame chute 4 through the fourth pin shaft and the end mounting bearing wheel 92 , and the second support frame 82 is also provided with a second chute 72 on the front and rear sides.

Preferably, the front and rear sides of the bottom end of the bed frame 1 are also provided with parallel first bed frame chute 3 respectively, and one end of the two first connecting rods 31 are respectively rotatably installed on the front and rear two sides of the left end of the bed frame 1 through the pin seat. one end of the two second connecting rods 41 are respectively installed in the first bed frame chute 3 through the second pin shaft and the end mounting bearing wheel 121; one end of the two third connecting rods 61 respectively pass through the third pin shaft and the end-mounted bearing wheels 111 are correspondingly installed in the two first sliding grooves 71, and a first connecting frame 131 is provided between the two third connecting rods 61;

Wherein, the other ends of the two second connecting rods 41 are rotatably mounted on the second pin shafts and the pin shafts of the bearing wheels 121 at the ends, and the other ends of the first connecting rods 31 are rotatably mounted on the other ends of the first connecting rods 31 through the pin shafts. On the second connecting rod 41, the other end of the second connecting rod 41 is rotated and mounted on the first support frame 81 through the pin shaft; the first electric telescopic rod 51 is rotated and installed on the bed frame 1 through the The telescopic end of an electric telescopic rod 51 is rotatably mounted on the first connecting frame 131 through a pin seat.

Preferably, the front and rear sides of the bottom end of the bed frame 1 are also provided with parallel first bed frame chute 3 respectively, and one end of the two fourth connecting rods 32 are respectively rotatably installed on the front and rear two sides of the left end of the bed frame 1 through the pin seat. one end of the two fifth connecting rods 42 are respectively installed in the first bed frame chute 3 through the fifth pin shaft and the end mounting bearing wheel 122; one end of the two sixth connecting rods 62 respectively pass through the sixth pin shaft and the end-mounted bearing wheels 112 are correspondingly installed in the two second sliding grooves 72, and a second connecting frame 132 is provided between the two sixth connecting rods 62;

Wherein, 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 mounting bearing wheel 122, and the other end of the fourth connecting rod 32 is rotatably mounted on the other end through the pin shaft. On the fifth connecting rod 42, the other end of the fifth connecting rod 42 is installed on the second support frame 82 through the pin shaft; the second electric telescopic rod 52 is installed on the bed frame 1 through the rotation of the pin shaft. The telescopic ends of the two electric telescopic rods 52 are rotatably mounted on the second connecting frame 132 through the pin seat.

Preferably, the first chute 71 and the second chute 72 are both U-shaped, and the openings face one end away from the base 2 .

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.

The beneficial effects of the invention are: through the telescopic motion of the two electric telescopic rods, the third connecting rod and the sixth connecting rod are pushed toward both ends respectively, thereby realizing the sliding movement of the second connecting rod and the fifth connecting rod on the first bed frame. The groove moves in the opposite direction, and the third link and the sixth link also slide in the first and second chute, respectively, driving the first and second support frames to rotate around the pin shaft seat to rise. Then, one end of the first support frame rotates around the pin seat on the base, and the other end slides to the left (that is, the direction of the end of the bed in the figure) on the second bed frame chute, and the sixth connection The other end of the rod cannot slide in the first chute (reaches the limit bottom), and then drives the second support frame to slide in the base chute toward the end of the bed, and the end connected to the second bed frame chute slides toward the head of the bed to form a second-stage transmission lift. The whole lifting process realizes vertical two-stage transmission, which ensures the stability and verticality of the lifting.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic diagram of a structural explosion of the present invention.

FIG. 2 is a schematic diagram of the present invention when it is lowered to the lowest level.

FIG. 3 is a schematic diagram of the present invention in a first-stage transmission ascent.

FIG. 4 is a schematic diagram of the present invention in the second-stage transmission ascent.

FIG. 5 is an enlarged view of A in FIG. 4 .

Detailed ways

The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

As shown in Figures 1-5, a three-chute two-stage transmission vertical lift structure includes a symmetrically arranged first support lift mechanism and a second support lift mechanism connected between the bed frame 1 and the base 2. The bed frame 1 bottom The front and rear sides of the end are respectively provided with a second bed frame chute 4, and the front and rear sides of the base 2 are respectively provided with a base chute 5; the first support lifting mechanism at least includes a first support frame 81, the first support The left end of the support frame 81 is rotatably installed on the left side of the base 2 through the pin seat, and the right end of the first support frame 81 is installed in the second bed frame chute 4 through the first pin shaft and the end mounting bearing wheel 91 , and the said The front and rear sides of the first support frame 81 are also provided with first chute 71; the second support lifting mechanism includes at least a second support frame 82, and both sides of the right end of the second support frame 82 pass through the base pin shaft and the end respectively. The first bearing wheel 10 is installed in the base chute 5, the left end of the second support frame 82 is installed in the second bed frame chute 4 through the fourth pin and the end mounting bearing wheel 92, and the second support The front and rear sides of the frame 82 are also provided with second sliding grooves 72 .

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

Wherein, the other ends of the two second connecting rods 41 are rotatably mounted on the second pin shafts and the pin shafts of the bearing wheels 121 at the ends, and the other ends of the first connecting rods 31 are rotatably mounted on the other ends of the first connecting rods 31 through the pin shafts. On the second connecting rod 41, the other end of the second connecting rod 41 is rotated and mounted on the first support frame 81 through the pin shaft; the first electric telescopic rod 51 is rotated and installed on the bed frame 1 through the The telescopic end of an electric telescopic rod 51 is rotatably mounted on the first connecting frame 131 through a pin seat.

In the present embodiment, the front and rear sides of the bottom end of the bed frame 1 are also provided with parallel first bed frame chute 3 respectively, and one end of the two fourth connecting rods 32 are respectively rotatably installed on the front and rear two sides of the left end of the bed frame 1 through the pin seat. one end of the two fifth connecting rods 42 are respectively installed in the first bed frame chute 3 through the fifth pin shaft and the end mounting bearing wheel 122; one end of the two sixth connecting rods 62 respectively pass through the sixth pin shaft and the end-mounted bearing wheels 112 are correspondingly installed in the two second sliding grooves 72, and a second connecting frame 132 is provided between the two sixth connecting rods 62;

Wherein, 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 mounting bearing wheel 122, and the other end of the fourth connecting rod 32 is rotatably mounted on the other end through the pin shaft. On the fifth connecting rod 42, the other end of the fifth connecting rod 42 is installed on the second support frame 82 through the pin shaft; the second electric telescopic rod 52 is installed on the bed frame 1 through the rotation of the pin shaft. The telescopic ends of the two electric telescopic rods 52 are rotatably mounted on the second connecting frame 132 through the pin seat.

In this embodiment, the first chute 71 and the second chute 72 are both U-shaped, and the openings face the end away from the base 2 ; the first electric telescopic rod 51 is located on the right side of the bed frame and the telescopic end faces the left side, so The second electric telescopic rod 52 is located on the left side of the bed frame and the telescopic end faces the right side.

The specific working state of the present invention is as follows: when the whole bed up key is pressed, the first support lifting mechanism and the second support lifting mechanism respectively start the first stage transmission.

In the first support 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 chute 3 through the second pin shaft and the end-mounted bearing wheel 121 , 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 chute 71 of the first support frame 81 (shown as sliding toward the end of the bed); The left end of the 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 chute 4 through the first pin shaft and the end-mounted bearing wheel 91; A support structure is similar. The telescopic end of the second electric telescopic rod 52 extends toward the head of the bed, except that one end of the second support frame 82 in the base chute 5 slides toward the head of the bed, and the other end passes through the fourth pin shaft. And the end mounted bearing wheel 92 slides towards the end of the bed. That is, the entire first support lifting mechanism and the second support lifting mechanism are in a rising and extending posture, that is, the bed frame is driven to vertically rise, and the entire process forms a first-stage transmission to vertically rise.

When the whole bed continues to rise, the third pin of the third connecting rod 61 in the first support mechanism and the end-mounted bearing wheel 111 slide to the end of the first chute 71, and no longer slide, the first support frame 81 slowly Up, the second pin on the second link 41 and the end-mounted bearing wheel 121 cannot slide in the first bed frame chute 3; similarly, the sixth pin of the sixth link 62 in the second support mechanism And the end-mounted bearing wheel 112 slides to the end of the second chute 72, and no longer slides, the second support frame 82 slowly rises, and the fifth pin on the fifth connecting rod 42 and the end-mounted bearing wheel 122 cannot be Slide in the first bed frame chute 3 and enter the secondary transmission.

The whole bed continues to rise, the first support frame 81 is connected to the base part to rotate, the first support frame 81 is connected to the first pin shaft of the second bed frame chute 4 and the end mounting bearing wheel 91 rotates relatively and slides toward the end of the bed at the same time; at the same time, the second support The frame 82 is connected to the base pin of the base chute 5 and the end-mounted bearing wheel 10 rotates and slides toward the end of the bed, and the fourth pin connected to the second bed frame chute 4 and the end-mounted bearing wheel 92 rotates relatively simultaneously to the bed. The head slides, this is a secondary transmission, only two chutes slide until the whole bed rises to the highest level.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the present invention. within the scope of protection.

Claims (5)

1. A three-chute two-stage transmission vertical lifting structure is characterized by comprising a first supporting lifting mechanism and a second supporting lifting mechanism which are symmetrically arranged and connected between a bed frame (1) and a base (2), wherein the front side and the rear side of the bottom end of the bed frame (1) are respectively provided with a second bed frame chute (4), and the front side and the rear side of the base (2) are respectively provided with a base chute (5);

the first supporting lifting mechanism at least comprises a first supporting frame (81), the left end of the first supporting frame (81) is rotatably arranged on the left side of the base (2) through a pin shaft seat, the right end of the first supporting frame (81) is arranged in the second bed frame sliding groove (4) through a first pin shaft and an end part mounting bearing wheel (91), and the front side and the rear side of the first supporting frame (81) are also provided with first sliding grooves (71);

the second supporting and lifting mechanism at least comprises a second supporting frame (82), the two sides of the right end of the second supporting frame (82) are respectively installed in the base sliding groove (5) through a base pin shaft and an end installation bearing wheel (10), the left end of the second supporting frame (82) is installed in the second bed frame sliding groove (4) through a fourth pin shaft and an end installation bearing wheel (92), and second sliding grooves (72) are further formed in the front side and the rear side of the second supporting frame (82).

2. A three-chute two-stage transmission vertical lifting structure as claimed in claim 1, wherein the front and rear sides of the bottom end of the bed frame (1) are respectively provided with a first bed frame chute (3) in parallel, and one end of each of the two first connecting rods (31) is rotatably mounted on the front and rear sides of the left end of the bed frame (1) through a pin shaft seat; one ends of the two second connecting rods (41) are respectively and correspondingly arranged in the first bed frame sliding groove (3) through a second pin shaft and an end part installation bearing wheel (121); one ends of the two third connecting rods (61) are correspondingly arranged in the two first sliding grooves (71) through third pin shafts and end part mounting bearing wheels (111), and a first connecting frame (131) is arranged between the two third connecting rods (61);

the other ends of the two second connecting rods (41) are rotatably arranged on a second pin shaft and a pin shaft of which the end part is provided with a bearing wheel (121), the other end of the first connecting rod (31) is rotatably arranged on the second connecting rod (41) through the pin shaft, and the other end of the second connecting rod (41) is rotatably arranged on the first supporting frame (81) through the pin shaft; a first electric telescopic rod (51) is rotatably installed on the bed frame 1 through a 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.

3. A three-chute two-stage transmission vertical lifting structure as claimed in claim 1, wherein the front and rear sides of the bottom end of the bed frame (1) are respectively provided with a first bed frame chute (3) in parallel, and one end of each of the two fourth connecting rods (32) is rotatably mounted on the front and rear sides of the left end of the bed frame (1) through a pin shaft seat; one ends of the two fifth connecting rods (42) are respectively and correspondingly arranged in the first bed frame sliding groove (3) through a fifth pin shaft and an end part installation bearing wheel (122); one ends of the two sixth connecting rods (62) are correspondingly arranged in the two second sliding grooves (72) through a sixth pin shaft and end part mounting bearing wheels (112), and a second connecting frame (132) is arranged between the two sixth connecting rods (62);

the other ends of the two fifth connecting rods (42) are rotatably arranged on a fifth pin shaft and a pin shaft of which the end part is provided with a bearing wheel (122), the other end of the fourth connecting rod (32) is rotatably arranged on the fifth connecting rod (42) through the pin shaft, and the other end of the fifth connecting rod (42) is rotatably arranged on the second supporting frame (82) through the pin shaft; the bed frame (1) is rotatably provided with a second electric telescopic rod (52) through a pin shaft seat, and the telescopic end of the second electric telescopic rod (52) is rotatably arranged on the second connecting frame (132) through the pin shaft seat.

4. A three-runner two-stage driving vertical lift structure as recited in claim 1, wherein said first runner (71) and said second runner (72) are both U-shaped and open towards an end remote from said base (2).

5. A three-chute two-stage transmission vertical lifting structure as claimed in claim 1, wherein the first electric telescopic rod (51) is located at the right side of the bed frame with the telescopic end facing to the left side, and the second electric telescopic rod (52) is located at the left side of the bed frame with the telescopic end facing to the right side.

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