WO2024011845A1

WO2024011845A1 - Mounting seat structure of scissor lift telescopic cylinder, and scissor lift

Info

Publication number: WO2024011845A1
Application number: PCT/CN2022/139045
Authority: WO
Inventors: 刘国良; 欧阳旭; 郑继平; 李俄锋
Original assignee: 湖南星邦智能装备股份有限公司
Priority date: 2022-07-14
Filing date: 2022-12-14
Publication date: 2024-01-18
Also published as: CN115092861A

Abstract

A mounting seat structure of a scissor lift telescopic cylinder, comprising a shaft apparatus, and further comprising a bottom member, side members, and bent members. In two opposite ends of the side members, first end parts are fixedly connected to the bottom member, and second end parts are configured to be connected to a scissor lift member. The bent members comprise transverse parts fixedly connected to the second end parts, and vertical parts fixedly connected to the bottom member; and the vertical parts and the first end parts are arranged side by side in the axial direction of the shaft apparatus and are all matingly connected to the shaft apparatus so as to support the shaft apparatus. The overall connection strength is reliable, and the side members, the transverse parts, the vertical parts and the bottom member form a box-type structure, such that the shaft apparatus can be better supported to better transmit an acting force. Moreover, the assembly is convenient and simple. Therefore, the problem that the supporting effect of an existing mounting seat structure of a scissor lift telescopic cylinder on a shaft apparatus is poor can be effectively solved. Further disclosed in the present invention is a scissor lift having the mounting seat structure of the scissor lift telescopic cylinder.

Description

The mounting base structure of the scissor telescopic cylinder and the scissors

This application requires the priority of the Chinese patent application submitted to the China Patent Office on July 14, 2022, with the application number 202210825392. This reference is incorporated into this application.

Technical field

The present invention relates to the technical field of work equipment, and more specifically, to a mounting base structure of a scissor telescopic cylinder, and to a scissor having the mounting base structure of the scissor telescopic cylinder.

Background technique

The ascent and descent of the scissors are realized by driving the oil cylinder. The oil cylinder base is the most critical part of the scissor fork structure. The existing oil cylinder base support is as shown in Figure 1. Figure 1 is one of the prior art. Structural diagram of a common mounting base structure of a scissor telescopic cylinder. The mounting base structure is a multi-plate welding structure with a large number of ribs, a large amount of welding, large welding residual stress, serious welding deformation, large welding workload, and high production cost. , and the support effect is not good.

To sum up, how to effectively solve the problem that the current mounting seat structure of the scissor telescopic cylinder has a poor supporting effect on the shaft device is an urgent problem for those skilled in the art.

Contents of the invention

In view of this, the first object of the present invention is to provide a mounting base structure for a scissor telescopic cylinder. The mounting base structure of the scissor telescopic cylinder can effectively solve the problem of the current mounting base structure of the scissor telescopic cylinder supporting the shaft device. The second object of the present invention is to provide a scissor with the mounting base structure of the scissor telescopic cylinder.

In order to achieve the above-mentioned first purpose, the present invention provides the following technical solutions:

A mounting base structure for a scissor telescopic cylinder, including a shaft device, characterized in that it also includes a bottom part, a side part and a folding part; of the two opposite ends of the side part: the first end is fixedly connected to the bottom part , the second end is used to connect the scissor forks; the folding member includes a horizontal part fixedly connected to the second end and a vertical part fixedly connected to the bottom part; the vertical part and the third One end portions are arranged side by side along the axial direction of the shaft device, and are cooperatively connected with the shaft device to support the shaft device.

When applying the mounting base structure of the scissor telescopic cylinder, the second end is fixedly connected to the scissor fork, which makes installation simple and convenient. The first end connected to the second end and the vertical part indirectly connected respectively support the shaft device, and both of the above are connected to the bottom part, so the overall connection strength is reliable, and the side parts and transverse parts , the vertical part and the bottom part form a box-type structure, which can better support the above-mentioned shaft device and better transmit the force. And when assembling the mounting base structure, it is mainly the assembly between the bottom part, side parts and folding parts, which is convenient and simple to assemble. In summary, the mounting seat structure of the scissor telescopic cylinder can effectively solve the problem that the current mounting seat structure of the scissor telescopic cylinder has poor support effect on the shaft device.

Preferably, both ends of the base member along the axial direction of the shaft device are provided with side mounting assemblies, and the side mounting assemblies at both ends include the side members and the folding members.

Preferably, the shaft device includes a rotating shaft and a shaft sleeve. The shaft sleeves are provided at both ends of the rotating shaft, and the shaft sleeves at both ends are respectively provided through the side mounting components at both ends.

Preferably, the shaft sleeve is provided with a locking screw, which can prevent the axial movement and/or rotation of the rotating shaft when locked.

Preferably, the folding part is arranged inside the side part in the axial direction; the bottom part and the folding part are both plate parts, the vertical part is arranged perpendicularly to the bottom part, and the transverse part is arranged perpendicularly to the bottom part. The bottom part is arranged parallel to the bottom part, and the horizontal part and the vertical part are integrally connected.

Preferably, the side member is a plate member, the second end is disposed perpendicularly to the bottom member, and the first end is disposed axially inward compared to the second end with a transverse extension between them. The middle plate part is connected, and one end of the first end part away from the bottom member is arranged axially outwardly inclined relative to the other end; the first end part, the second end part and the middle plate part are integrally formed connect.

Preferably, the first end part and the vertical part are both welded to the bottom plate surface, and the transverse part is welded to the inner side of the second end part.

Preferably, the end of the bottom piece protrudes outward from the side piece in the axial direction, and the protruding portion is connected to the side piece through a rib.

Preferably, the bottom component is a pothole protection plate trigger pressure plate.

In order to achieve the second purpose mentioned above, the present invention also provides a scissor, which includes a mounting base structure of any of the scissor telescopic cylinders mentioned above, and also includes an inner fork and a telescopic cylinder. The side of the mounting base structure The component is fixedly connected to the inner fork, and the shaft device of the mounting seat structure is connected to the telescopic cylinder. Since the above-mentioned mounting seat structure of the scissor telescopic cylinder has the above-mentioned technical effects, a scissor with the mounting seat structure of the scissor telescopic cylinder should also have corresponding technical effects.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the 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 be obtained based on these drawings without exerting creative efforts.

Figure 1 is a schematic structural diagram of a common mounting base structure of a scissor telescopic cylinder in the prior art;

Figure 2 is a schematic structural diagram of a mounting base structure of a scissor telescopic cylinder provided by an embodiment of the present invention;

Figure 3 is a schematic structural diagram of another mounting base structure of a scissor telescopic cylinder provided by an embodiment of the present invention;

Figure 4 is a schematic diagram of the installation structure of the mounting base structure on the fork provided by the embodiment of the present invention;

Figure 5 is a schematic diagram of the installation structure of multiple mounting base structures on multiple forks respectively according to the embodiment of the present invention;

Figure 6 is a schematic diagram of the installation structure of the side parts provided by the embodiment of the present invention;

Figure 7 is a schematic diagram of the installation structure of the folding member provided by the embodiment of the present invention;

Figure 8 is a schematic diagram of the installation structure of the base member provided by the embodiment of the present invention;

Figure 9 is a schematic diagram of the installation structure of the scissors provided by the embodiment of the present invention.

The drawings are marked as follows:

Mounting base structure 1, inner fork 2, telescopic cylinder 3;

Side parts 11, bottom part 12, folding part 13, bushing 14, rotating shaft 15, locking screw 16, rib 17,

The first end part 111, the second end part 112, the middle plate part 113;

Horizontal part 131, vertical part 132.

Detailed ways

The embodiment of the present invention discloses a mounting seat structure of a scissor telescopic cylinder to effectively solve the problem that the current mounting seat structure of a scissor telescopic cylinder has a poor supporting effect on a shaft device.

The technical solutions in 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. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

Please refer to Figures 2-9. Figure 2 is a schematic structural diagram of a mounting base structure of a scissor telescopic cylinder provided by an embodiment of the present invention;

Figure 3 is a schematic structural diagram of another mounting base structure of a scissor telescopic cylinder provided by an embodiment of the present invention; Figure 4 is a schematic structural diagram of the mounting base structure on a fork provided by an embodiment of the present invention; Figure 5 is a schematic diagram of the mounting base structure of the scissor telescopic cylinder provided by an embodiment of the present invention. A schematic diagram of the installation structure of multiple mounting base structures on multiple forks provided by the embodiment of the present invention; Figure 6 is a schematic diagram of the installation structure of the side parts provided by the embodiment of the present invention; Figure 7 is a schematic diagram of the installation of the folding member provided by the embodiment of the present invention. Structural schematic diagram; Figure 8 is a schematic diagram of the installation structure of the bottom member provided by the embodiment of the present invention; Figure 9 is a schematic diagram of the installation structure of the scissors provided by the embodiment of the present invention.

In some embodiments, this embodiment provides a mounting base structure 1 for the scissor telescopic cylinder 3, which is used to install the fork of the scissor and is connected between the fork and the telescopic cylinder 3, so that the telescopic cylinder 3 forms a rotational connection and matching relationship with the fork. The telescopic cylinder 3 generally refers to the driving mechanism used to drive the scissors to telescope, which is generally a telescopic oil cylinder. The fork is generally an inner fork 2, that is, through the mounting structure 1, In order to realize that the telescopic cylinder 3 and the inner fork 2 can rotate relative to each other. It should be noted that the mounting seat structure 1 can be used as an upper seat structure or a lower seat structure. For example, the two ends of the telescopic cylinder 3 in the telescopic direction can be connected through the mounting seat structure 1 respectively.

In some embodiments, the mounting base structure 1 may include at least one, more, or even all of the following structures: a shaft device, a bottom member 12 , a side member 11 and a folding member 13 . It should be noted that the bottom part 12, the side parts 11 and the folding parts 13 are generally plate parts, and do not necessarily have to be standard plate-like structures. In this case, the bottom part 12, the side parts 11 and the folding parts 13 can be They are: bottom plate, side plate and folding plate. Of course, the bottom piece 12, the side pieces 11 and the folding piece 13 can also be partially or entirely made of rods as needed.

In some embodiments, of the two opposite ends of the side member 11: the first end 111 is fixedly connected to the bottom member 12; the second end 112 is used to connect the scissor forks. So that through the side parts 11, the bottom part 12 and the scissor fork parts are indirectly connected. The first end 111 and the second end 112 are arranged side by side in the radial direction of the shaft device, so that the second end 112 can extend away from the bottom member 12. In practical applications, the axial direction of the shaft device When the direction is horizontal, it is mainly set up and down.

In some embodiments, the first end 111 is fixedly connected to the bottom member 12, such as screw connection, bolt connection, welding or integrally formed connection. Specifically, for example, the end surface of the first end 111 can be made to abut against the corresponding side of the bottom member 12 , and a welding connection, screw connection, etc. can be achieved therebetween. For the specific connection method, you can also refer to the connection relationship between other two intersecting plates. The details will not be described again here.

In some embodiments, the second end 112 is used to connect the scissor fork member, where the fork member is generally the inner fork 2 , specifically, mainly by abutting against the inner fork 2 and abutting against the inner fork 2 . On the pipe, welding, screw connection, bolt connection, etc. are used. In order to facilitate connection, a plurality of elongated holes can be provided on the second end 112, so that when using screw connection or bolt connection, the installation position can be adjusted as needed, and the weight reduction effect can be achieved at the same time.

In some embodiments, the folding member 13 includes a transverse portion 131 fixedly connected to the second end portion 112 and a vertical portion 132 fixedly connected to the bottom member 12 to communicate with the second end portion 112 and the bottom member through the folding member 13 . 12 are connected so that the second end 112 not only transmits force through the first end 111 and the bottom part 12 , but also transmits force through the folding part 13 and the bottom part 12 . It should be noted that the transverse portion 131 and the vertical portion 132 need to transmit force to each other and can be connected directly or indirectly, such as one-piece connection or screw or bolt connection. The horizontal and vertical terms used in the names of the horizontal part 131 and the vertical part 132 do not limit their spatial structure, but are intended to describe the existence of such two parts to connect the bottom part 12 and the second end part 112 respectively.

In some embodiments, the vertical portion 132 and the first end portion 111 are arranged side by side along the axial direction of the shaft device, and are both cooperatively connected with the shaft device to support the shaft device, so that the first end portion 111 Both the vertical portion 132 and the vertical portion 132 provide support for the shaft device. The fitting connection shall be subject to providing supporting force. If the shaft sleeve 14 of the shaft device is connected to the vertical part 132 and/or the first end 111, then the fitting connection is a fixed connection at this time, and if the shaft device The rotation shaft 15 is rotationally connected to the vertical portion 132 and/or the first end 111, so the fitting connection at this time is a rotation fit. It should be noted that the vertical portion 132 and the first end portion 111 are arranged side by side along the axial direction of the shaft device. It is not required that they are arranged parallel to each other in the axial direction. More importantly, they are arranged parallel to each other in the axial direction. , wherein the vertical portion 132 and the first end portion 111 are staggered, so that the vertical portion 132 and the first end portion 111 provide supporting force for different axial parts of the shaft device. At this time, the bottom part 12 has the effect of strengthening the connection between the vertical part 132 and the first end part 111.

In some embodiments, when applying the mounting base structure 1 of the scissor telescopic cylinder 3, the second end 112 is fixedly connected to the scissor fork, so that the installation is simple and convenient. The first end portion 111 connected to the second end portion 112 and the vertical portion 132 indirectly connected respectively support the shaft device, and both of them are connected to the bottom member 12, so the overall connection strength is reliable, and at the same time, the side The member 11, the transverse portion 131, the vertical portion 132 and the bottom member 12 form a box structure, which can better support the above-mentioned shaft device and transmit the force better. Moreover, when the mounting base structure 1 is assembled, it is mainly assembled between the bottom part 12, the side parts 11 and the folding part 13, and the assembly is convenient and simple. In summary, the mounting seat structure 1 of the scissor telescopic cylinder 3 can effectively solve the current problem of the poor supporting effect of the mounting seat structure 1 of the scissor telescopic cylinder 3 on the shaft device.

In some embodiments, the two ends of the central axis device can be supported by the same or similar structures, or can be connected by different structures. For example, one end of the shaft device is supported by the folding piece 13 and the side piece 11 simultaneously, while the other end of the shaft device is supported by the folding piece 13 and/or the side piece 11 . In order to better support the shaft device, specifically, for example, both ends of the base member 12 along the axial direction of the shaft device are provided with side mounting assemblies, and the side mounting assemblies at both ends include side pieces 11 and folding parts. Item 13. It should be noted that the structures of the side mounting components at both ends can be the same or different. Specifically, they can be set as needed.

In some embodiments, the shaft device may be a single shaft body, or may include a rotating shaft 15 and a shaft sleeve 14, wherein the shaft sleeves 14 are provided at both ends of the rotating shaft 15, and the shaft sleeves 14 at both ends pass through respectively. Set the side mounting components at both ends. That is to say, correspondingly, the sleeves 14 at both ends pass through the folding piece 13 and the side piece 11 at the corresponding end, and are fixedly connected to the bottom piece 12 and the side piece 11 . Specifically, in the side mounting assembly at either end or one of the ends, the bottom member 12 and the side member 11 are provided with coaxial through holes, such as cylindrical holes, to match the outer diameter of the sleeve 14 therein. , such as clearance fit, interference fit, etc.

In some embodiments, in order to facilitate installation and maintain stability between structures, it is preferred that the shaft sleeve 14 is provided with a locking screw 16. When locked, the locking screw 16 can prevent the axial movement of the rotating shaft 15 and /or turn. Specifically, the locking screw 16 may be threadedly connected to the sleeve 14, and when the locking screw 16 is locked, the rotating shaft 15 may have an annular groove that matches the tail of the locking screw 16 to prevent axial movement without Prevent rotation; the rotating shaft 15 can have an axial strip groove that matches the tail of the locking screw 16 to prevent rotation without preventing axial movement; the rotating shaft 15 can have a diameter that matches the tail of the locking screw 16 axial groove to prevent axial movement and prevent rotation. Specifically, it can be set as needed.

In some embodiments, the above-mentioned locking screws 16 are provided on both end sleeves 14 of the rotating shaft 15 , or one end sleeve 14 of the two end sleeves 14 of the rotating shaft 15 is provided with the above-mentioned locking screw 16 .

In some embodiments, the locking screw 16 can be between the side piece 11 of the side mounting assembly and the folding piece 13 , or can be provided on the side of the side piece 11 away from the folding piece 13 , or on the side of the side piece 11 far away from the folding piece 13 . The specific installation position on one side of the side piece 11 can be set as needed.

In some embodiments, for better centralized installation, it is preferred that the folding member 13 is provided on the inner side of the side member 11 in the axial direction, where the end close to the axial middle of the shaft device is the inner side. For a centrally installed telescopic cylinder 3, then the side facing the telescopic cylinder 3 is the inside.

In some embodiments, the vertical part 132 can be arranged perpendicularly to the bottom part 12 , and the horizontal part 131 can be arranged parallel to the bottom part 12 to better form a box structure. Specifically, the bottom part 12 and the folding part 13 can both be plate parts, in which the transverse part 131 and the vertical part 132 are integrally formed and connected. That is, the folding member 13 can be an L-shaped folding plate.

In some embodiments, the second end 112 may be disposed perpendicularly to the bottom member 12 , and the first end 111 may be disposed axially inward compared to the second end 112 with a transversely extending middle between them. The plate portions 113 are connected, and one end of the first end portion 111 away from the bottom member 12 is arranged axially outwardly inclined relative to the other end. Specifically, the side member 11 can be a side plate. The first end portion 111 , the second end portion 112 and the middle plate portion 113 are integrally formed and connected, and further, they can all have a flat plate structure. By arranging the first end 111 axially inward compared to the second end 112 , the entire mounting seat structure 1 is contracted toward the direction of the shaft device to facilitate later installation.

In some embodiments, the first end portion 111 and the vertical portion 132 can be welded to the plate surface of the bottom member 12 , and the transverse portion 131 can be welded to the inner side of the second end portion 112 . When the side parts 11 and the folding parts 13 are both integrally formed parts, the assembly of the entire structure will be very convenient and simple.

In some embodiments, the mounting base structure 1 can be considered as an upper base structure or a lower base structure. Especially when used as a lower base structure, in order to ensure strength, it is preferred that the end of the bottom member 12 is axially outward. The protruding part is provided on the side member 11 , and the protruding part and the side member 11 are connected through ribs 17 so as to achieve a reinforcing effect through the ribs 17 .

It should be noted that the bottom member 12 may have a flat plate structure, and in order to enhance strength, curls may be formed on both sides of the bottom member 12 in the radial direction of the axial device.

In some embodiments, the bottom member 12 is a pothole protection plate trigger plate. The bottom part 12 is an integrated structure of the pothole protection device, and the integrated pothole protection plate triggers the pressure plate structure. When the fork is lowered and retracted to the bottom, both ends of the bottom member 12 are pressed against the pothole protection plate triggering mechanism, thereby controlling the opening and closing of the pothole protection device.

In some embodiments, the cylinder support is structurally optimized. For example, any of the above mounting seat structures 1 is designed on the first inner fork, the second inner fork, and the third inner fork that are arranged in sequence. The mounting base structure 1 is welded by the side parts 11 , the bottom part 12 and the shaft sleeve 14 . The number of parts and the amount of welding are reduced, and the shape of the side part 11 structure is optimized based on the principle of mechanical topology. The structure is lightweight, the welding deformation is reduced, the manufacturing cost is reduced, and the product quality is improved.

Based on the mounting seat structure 1 of the scissor telescopic cylinder 3 provided in the above embodiments, the present invention also provides a scissor, which includes the mounting seat structure 1 of the scissor telescopic cylinder 3 in any of the above embodiments, It also includes an inner fork 2 and a telescopic cylinder 3. The side piece 11 of the mounting seat structure 1 is fixedly connected to the inner fork 2, and the shaft device of the mounting seat structure 1 is connected to the telescopic cylinder 3. Since this scissor uses the mounting seat structure 1 of the scissor telescopic cylinder 3 in the above-mentioned embodiment, please refer to the above-mentioned embodiment for the beneficial effects of this scissor.

Each embodiment in this specification is described in a progressive manner. Each embodiment focuses on its differences from other embodiments. The same and similar parts between the various embodiments can be referred to each other.

The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be practiced in other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

A mounting base structure for a scissor telescopic cylinder, including a shaft device, characterized in that it also includes a bottom part, a side part and a folding part; of the two opposite ends of the side part: the first end is fixedly connected to the bottom part , the second end is used to connect the scissor forks; the folding member includes a horizontal part fixedly connected to the second end and a vertical part fixedly connected to the bottom part; the vertical part and the third One end portions are arranged side by side along the axial direction of the shaft device, and are cooperatively connected with the shaft device to support the shaft device.
The mounting base structure of the scissor telescopic cylinder according to claim 1, characterized in that, both ends of the bottom member along the axial direction of the shaft device are provided with side mounting assemblies, and the sides of the two ends The mounting components each include the side pieces and the folding pieces.
The mounting base structure of the scissor telescopic cylinder according to claim 2, wherein the shaft device includes a rotating shaft and a shaft sleeve, and the shaft sleeves are provided at both ends of the rotating shaft, and the shaft sleeves at both ends are The shaft sleeves are respectively inserted through the side mounting components at both ends.
The mounting base structure of the scissor telescopic cylinder according to claim 3, wherein the shaft sleeve is provided with a locking screw, and when the locking screw is locked, it can prevent the axial movement of the rotating shaft and /or turn.
The mounting base structure of the scissor telescopic cylinder according to claim 4, wherein the folding member is arranged inside the side member in the axial direction; the bottom member and the folding member are both plates. component, the vertical part is arranged perpendicularly to the bottom component, the transverse part is arranged parallel to the bottom component, and the transverse part and the vertical part are integrally formed and connected.
The mounting seat structure of the scissor telescopic cylinder according to claim 5, wherein the side part is a plate part, the second end part is arranged perpendicularly to the bottom part, and the first end part is The second ends are arranged axially inward and are connected by a transversely extending middle plate portion, and one end of the first end away from the bottom member is arranged axially outward and inclined relative to the other end; the first end The end portion, the second end portion and the middle plate portion are integrally connected.
The mounting base structure of the scissor telescopic cylinder according to claim 6, wherein the first end part and the vertical part are both welded to the bottom plate surface, and the transverse part is welded to the third The inner side of the two ends.
The mounting base structure of the scissor telescopic cylinder according to claim 7, wherein the end of the bottom member protrudes outward from the side member in the axial direction, and the protruding part is connected to the side member. They are connected through stiffeners.
The mounting seat structure of the scissor telescopic cylinder according to any one of claims 1 to 8, characterized in that the bottom member is a pothole protection plate triggering pressure plate.
A scissor, including an inner fork and a telescopic cylinder, characterized in that it also includes a mounting seat structure of the scissor telescopic cylinder according to any one of claims 1 to 9, and the side parts of the mounting seat structure are fixedly connected to The inner fork and the shaft device of the mounting base structure are connected to the telescopic cylinder.