CN210286612U

CN210286612U - Lifting platform driven by lead screw driven by air cylinder

Info

Publication number: CN210286612U
Application number: CN201921298906.0U
Authority: CN
Inventors: 周渊; 李忠贵; 李明生
Original assignee: Chengdu Hongtu Luqiao Machine Co ltd
Current assignee: Chengdu Hongtu Luqiao Machine Co ltd
Priority date: 2019-08-12
Filing date: 2019-08-12
Publication date: 2020-04-10
Anticipated expiration: 2029-08-12

Abstract

The utility model relates to an elevating platform field discloses a cylinder drives lead screw drive elevating platform, including bottom plate, two lower threaded rods, two first poles, two second poles, first slide, platform, go up threaded rod, second slide and cylinder, two lower threaded rods parallel arrangement in the bottom plate, two first poles and second pole respectively one-to-one articulate and the pin joint is arranged in between both ends, the fixed hinge joint in bottom plate of one end of first pole. The first sliding plate is erected on the two lower threaded rods in a threaded fit mode, and one end of the second rod is fixedly hinged to the first sliding plate. Two upper threaded rods are arranged on the platform in parallel, one end, far away from the bottom plate, of the second rod is fixedly hinged to the platform, the second sliding plate is erected on the two upper threaded rods in a threaded fit mode, and one end, far away from the bottom plate, of the first rod is fixedly hinged to the second sliding plate. The cylinder sets up in the bottom plate along the horizontal direction, and the cylinder is connected with first slide, and the cylinder can prevent the quick decline of platform when stopping working, plays the safety protection effect.

Description

Lifting platform driven by lead screw driven by air cylinder

Technical Field

The utility model relates to a lifting platform field particularly, relates to a cylinder drives screw drive lifting platform.

Background

The existing lifting platform realizes the ascending and descending of the platform through the mutual rotation of two groups of mutually hinged supports, and an output rod of a hydraulic cylinder directly acts on the supports along the vertical direction, so that the supports move clockwise and anticlockwise on a vertical plane. Or the lifting mechanism acts on the platform along the vertical direction, and the platform is directly acted to ascend and descend, so that the supports rotate mutually.

The action devices are all arranged in the vertical direction, and when the hydraulic cylinder or the lifting mechanism stops working suddenly, the platform loses the supporting force and can descend rapidly, so that the threat to goods or workers on the platform can be caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a cylinder drives lead screw drive elevating platform, and the cylinder can prevent the quick decline of platform when stopping work, plays the safety protection effect.

The embodiment of the utility model is realized like this:

the utility model provides a cylinder drives lead screw driven elevating platform, includes bottom plate, two lower threaded rods, two first poles, two second poles, first slide, platform, goes up threaded rod, second slide and cylinder.

Two lower threaded rods are arranged on the bottom plate in parallel, two first rods are arranged in parallel, two second rods are arranged in parallel, the first rods and the second rods are hinged in a one-to-one correspondence mode respectively, a hinge point is arranged between the two ends, and one end of each first rod is fixedly hinged to the bottom plate. The first sliding plate is erected on the two lower threaded rods in a threaded fit mode, and one end of the second rod is fixedly hinged to the first sliding plate. Two upper threaded rods are arranged on the platform in parallel, one end, far away from the bottom plate, of the second rod is fixedly hinged to the platform, the second sliding plate is erected on the two upper threaded rods in a threaded fit mode, and one end, far away from the bottom plate, of the first rod is fixedly hinged to the second sliding plate. The cylinder sets up in the bottom plate along the horizontal direction, and the cylinder disposes the output shaft, and the output shaft is connected with first slide.

Further, the first rod and the second rod are similar to two triangles formed by dividing a hinge point, so that the platform is horizontally arranged.

Furthermore, two ends of the lower threaded rod are erected on the bottom plate through two lower supports respectively, and two ends of the upper threaded rod are erected on the platform through two upper support frames respectively.

Further, the first rod is hinged with the second rod through a pin or a bearing.

Further, the platform includes a horizontal frame having a plurality of pulleys disposed along a horizontal plane in a movable orientation for facilitating loading and unloading.

Furthermore, a cover plate can be additionally arranged on the platform.

Further, the bottom surface of the second sliding plate is provided with a buffer rubber.

Further, the bottom plate is fixed to the ground by bolts.

The utility model has the advantages that: first slide is equipped with the screw hole and realizes screw-thread fit with lower threaded rod, and the second slide is equipped with the screw hole and realizes screw-thread fit with last threaded rod, when the cylinder stop work, avoids the platform to support because of lacking power and just directly falls, can prevent the quick decline of platform, plays the safety protection effect.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is the embodiment of the utility model provides a cylinder drives the structural schematic diagram of lead screw drive elevating platform.

Icon: 100-bottom plate, 110-lower threaded rod, 111-lower support, 200-first rod, 300-second rod, 400-first sliding plate, 500-platform, 510-upper threaded rod, 511-upper support, 520-horizontal frame, 521-pulley, 600-second sliding plate and 700-cylinder.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

The terms "first," "second," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

The terms "parallel", "perpendicular", etc. do not require that the components be absolutely parallel or perpendicular, but may be slightly inclined. For example, "parallel" merely means that the directions are more parallel relative to "perpendicular," and does not mean that the structures are necessarily perfectly parallel, but may be slightly tilted.

Furthermore, the terms "substantially", and the like are intended to indicate that the relative terms are not necessarily strictly required, but may have some deviation. For example: "substantially equal" does not mean absolute equality, but it is difficult to achieve absolute equality in actual production and operation, and certain deviations generally exist. Thus, in addition to absolute equality, "substantially equal" also includes the above-described case where there is some deviation. In this case, unless otherwise specified, terms such as "substantially", and the like are used in a similar manner to those described above.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1, the embodiment provides a lifting platform driven by a cylinder to drive a lead screw, including a bottom plate 100, two lower threaded rods 110, two first rods 200, two second rods 300, a first sliding plate 400, a platform 500, an upper threaded rod 510, a second sliding plate 600, and a cylinder 700.

Two lower threaded rods 110 are arranged in parallel on the bottom plate 100, two first rods 200 are arranged in parallel, two second rods 300 are arranged in parallel, the first rods 200 and the second rods 300 are hinged in a one-to-one correspondence mode respectively, a hinge point is arranged between two ends, and one end of each first rod 200 is fixedly hinged to the bottom plate 100. The first sliding plate 400 is mounted on the two lower threaded rods 110 by screw-fitting, and one end of the second rod 300 is fixedly hinged to the first sliding plate 400. Two upper threaded rods 510 are arranged in parallel on the platform 500, one end of the second rod 300 far away from the bottom plate 100 is fixedly hinged on the platform 500, the second sliding plate 600 is erected on the two upper threaded rods 510 through threaded fit, and one end of the first rod 200 far away from the bottom plate 100 is fixedly hinged on the second sliding plate 600. The cylinder 700 is horizontally provided on the base plate 100, and the cylinder 700 is provided with an output shaft connected to the first slide plate 400.

One end of the second rod 300 is hinged to the first sliding plate 400, the first sliding plate 400 is matched with the lower threaded rod 110 through a threaded hole penetrating through the first sliding plate 400, the first sliding plate 400 moves on the lower threaded rod 110, and the movement is limited to threaded matching and moves slowly. The threaded rod means a rod member provided with threads along the circumferential direction in the axial direction, and plays a role of assisting the movement in this embodiment.

Similarly, second slide plate 600 engages upper threaded rod 510 via a threaded hole extending through itself to allow movement of second slide plate 600 on upper threaded rod 510. One end of the first lever 200 is hinged to the second slide plate 600,

The output shaft of the cylinder 700 is connected to the first sliding plate 400, the cylinder 700 provides kinetic energy through a pump, and the output shaft extends and contracts when the cylinder 700 operates.

Referring to fig. 1, when the load needs to be lifted, the platform 500 is lowered to the lowest position and the load is placed thereon. At this time, the output shaft of the cylinder 700 extends to the maximum distance allowed, the first sliding plate 400 is at the end far away from the cylinder 700, and the included angle between the first rod 200 and the second rod 300 is at the maximum. When the cargo is loaded on the platform 500, the air cylinder 700 is operated, the output shaft is retracted, and the first sliding plate 400 is moved on the lower threaded rod 110 in a direction toward the air cylinder 700 by the output shaft of the air cylinder 700. Accordingly, the angle between the first and

second bars

200 and 300 hinged to each other is decreased. The first rod 200 and the bottom plate 100, the first rod 200 and the platform 500, the second rod 300 and the bottom plate 100, and the second rod 300 and the platform 500 all rotate with each other, and the included angle gradually decreases along with the retraction of the output shaft.

As the angle between the first and

second bars

200 and 300 hinged to each other is decreased, the platform 500 is slowly raised with high stability. The slow lifting speed is beneficial to the stability of the platform 500 in lifting, and is beneficial to the stability of goods placed on the platform 500 and the life safety of workers standing on the platform 500.

In some cases, the operation of the cylinder 700 may be stopped. If the cylinder 700 stops working due to a failure, the platform 500 does not rapidly fall down because no output shaft abuts the first slide 400. The gravity of the goods placed on the platform 500 is transferred to the first sliding plate 400 through the second rod 300, the first sliding plate 400 moves along the direction of keeping away from the cylinder 700 along the lower threaded rod 110, and due to the mutual rotation of the external thread and the internal thread, the moving speed of the first sliding plate 400 is slow, and the slow descending speed and the strong stability of the platform 500 can be effectively guaranteed. Accordingly, the second slide plate 600 slides on the upper threaded rod 510.

Further, referring to fig. 1, the first rod 200 and the second rod 300 are similar to two triangles formed by being divided by a hinge point, so as to realize that the platform 500 is horizontally disposed.

The single primary lever 200 and the single secondary lever 300 are hinged to each other and to the joint point. The end of the first rod 200 close to the bottom plate 100, the end of the second rod 300 close to the bottom plate 100, and three points of the intersection point form a triangle, the end of the first rod 200 close to the platform 500, the end of the second rod 300 close to the platform 500, and three points of the intersection point form another triangle, and the two triangles are arranged in a similar triangle. Thereby ensuring that the line connecting the end of the first rod 200 close to the platform 500 and the end of the second rod 300 close to the platform 500 is parallel to the base plate 100. Thereby can ensure that platform 500 is the horizontal direction setting, be favorable to the stable of goods to be placed on platform 500.

Further, referring to fig. 1, two ends of the lower threaded rod 110 are respectively disposed on the bottom plate 100 through two lower supports 111, and two ends of the upper threaded rod 510 are respectively disposed on the platform 500 through two upper supports 511.

The lower support 111 may be fixed to the base plate 100 in a bolt-fixed manner, both ends of the lower threaded rod 110 are erected on the two lower supports 111, and the movable range of the first sliding plate 400 is limited between the respective two lower supports 111. The lower threaded rod 110 is arranged in a fixed arrangement in a lower seat 111. Accordingly, the movable range of the second slide plate 600 is limited between the respective two upper seats 511.

Further, the first lever 200 is hinged to the second lever 300 by a pin or a bearing. The first rod 200 and the second rod 300 are respectively preset with preset holes for hinging at corresponding positions, and the hinging of the first rod 200 and the second rod 300 at preset joint positions can be realized by inserting pins. The mutual articulation of the first rod 200 and the second rod 300 can also be achieved by means of bearings, provided in one of the pre-established holes, and in the other pre-established hole, a shaft cooperating with the bearings.

Further, referring to fig. 1, the platform 500 includes a horizontal frame 520, the horizontal frame 520 is provided with a plurality of pulleys 521 along a movable direction on a horizontal plane, and the pulleys 521 are used for facilitating loading and unloading.

The horizontal frame 520 refers to a frame disposed in a horizontal direction. This device is fit for promoting the transportation to the goods that weighs is big, shifts away on shifting the goods to platform 500, including shifting the goods from platform 500, all can be through the supplementary transfer of pulley 521, can play laborsaving efficiency. More, hold the goods on a load plate, conveniently move on pulley 521.

Further, a cover plate may be added to the platform 500. The goods and the second sliding plate 600 can be directly isolated, and the second sliding plate 600 is placed to move to influence the goods placed on the platform 500.

Further, a cushion rubber is mounted on the bottom surface of the second slide plate 600. In a preferred embodiment, when it is desired to lift or lower the load, the platform 500 is first lowered to the lowest position, and in the lowest position, the second sliding plate 600 is lowered to the ground. In order to prevent the second slide plate 600 from damaging the device due to impact on the ground, a buffer rubber is installed on the bottom surface of the second slide plate 600 to protect the device from impact when the second slide plate is in contact with the ground.

Further, the base plate 100 is fixed to the ground by bolts. The lifting platform driven by the lead screw driven by the cylinder is used for bearing and lifting and transporting goods with larger weight, the load of the whole movement of the device is large, and the bottom plate 100 needs to be well fixed on the ground so as to ensure the stability of the whole device when the goods are lifted.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a cylinder drives lead screw drive's elevating platform which characterized in that includes:

the bottom plate and the two lower threaded rods are arranged on the bottom plate in parallel;

the two first rods are arranged in parallel, the two second rods are arranged in parallel, the first rods and the second rods are hinged in a one-to-one correspondence mode respectively, a hinge point is arranged between the two ends, and one end of each first rod is fixedly hinged to the bottom plate;

the first sliding plate is erected on the two lower threaded rods in a threaded fit manner, and one end of the second rod is fixedly hinged to the first sliding plate;

the second rod is fixedly hinged to the platform at one end far away from the bottom plate;

the second sliding plate is erected on the two upper threaded rods in a threaded fit manner, and one end, far away from the bottom plate, of the first rod is fixedly hinged to the second sliding plate;

the cylinder, the cylinder level set up in the bottom plate, the cylinder disposes the output shaft, the output shaft with first slide is connected.

2. The cylinder drives the elevating platform of lead screw transmission according to claim 1, characterized in that:

the first rod and the second rod are similar to two triangles formed by dividing the hinge point, so that the platform is horizontally arranged.

3. The cylinder drives the elevating platform of lead screw transmission according to claim 1, characterized in that:

the two ends of the lower threaded rod are erected on the bottom plate through the two lower supports respectively, and the two ends of the upper threaded rod are erected on the platform through the two upper support frames respectively.

4. The cylinder drives the elevating platform of lead screw transmission according to claim 1, characterized in that:

the first rod and the second rod are hinged through a pin or a bearing.

5. The cylinder drives the elevating platform of lead screw transmission according to claim 1, characterized in that:

the platform comprises a horizontal frame, wherein a plurality of pulleys are arranged on the horizontal frame along the direction of motion on the horizontal plane, and the pulleys are used for facilitating loading and unloading.

6. The cylinder drives the elevating platform of lead screw transmission according to claim 1, characterized in that:

the platform can be additionally provided with a cover plate.

7. The cylinder drives the elevating platform of lead screw transmission according to claim 1, characterized in that:

and the bottom surface of the second sliding plate is provided with buffer rubber.

8. The cylinder drives the elevating platform of lead screw transmission according to claim 1, characterized in that:

the bottom plate is fixed on the ground through bolts.