Mounting seat structure of scissor telescopic cylinder and scissor

Abstract

The application discloses a mounting seat structure of a scissor telescopic cylinder, which comprises a shaft device, characterized in that the mounting seat structure further comprises a bottom piece, a side piece and a folding piece; the side piece is fixedly connected with the bottom piece at a first end and is used for connecting a scissor fork at a second end; the folding piece comprises a horizontal part fixedly connected with the second end and a vertical part fixedly connected with the bottom piece; the vertical part and the first end are arranged in parallel along the axial direction of the shaft device and are both connected with the shaft device to support the shaft device. The overall connection strength is reliable, and the side piece, the horizontal part, the vertical part and the bottom piece form a box structure, which can better support the shaft device and better transmit the acting force. The mounting seat structure is convenient and simple to assemble. Therefore, the mounting seat structure can effectively solve the problem that the mounting seat structure of the scissor telescopic cylinder has a poor supporting effect on the shaft device. The application further discloses a scissor fork with the mounting seat structure of the scissor telescopic cylinder.

Description

Technical Field

[0001] This invention relates to the field of work equipment technology, and more specifically, to a mounting structure for a scissor lift cylinder, and to a scissor lift having the aforementioned mounting structure for a scissor lift cylinder. Background Technology

[0002] The scissor lift and lowering are achieved by a hydraulic cylinder. The hydraulic cylinder support is the most critical part of the scissor lift structure. The existing hydraulic cylinder support is as shown in the attached figure. Figure 1 As shown, Figure 1 This is a schematic diagram of a common mounting base structure for a scissor lift cylinder in the prior art. The mounting base structure is a multi-plate welded structure with a large number of stiffeners, a large amount of welding, high welding residual stress, severe welding deformation, a large amount of welding work, high manufacturing cost, and poor support effect.

[0003] In summary, how to effectively solve the problem of poor support effect of the mounting base structure of the current scissor lift cylinder on the shaft device is an urgent problem that needs to be solved by those skilled in the art. Summary of the Invention

[0004] In view of this, the first objective of the present invention is to provide a mounting base structure for a scissor lift cylinder, which can effectively solve the problem that the current mounting base structure for scissor lift cylinders does not provide good support for the shaft device. The second objective of the present invention is to provide a scissor lift cylinder having the above-mentioned mounting base structure for a scissor lift cylinder.

[0005] To achieve the first objective mentioned above, the present invention provides the following technical solution:

[0006] A mounting base structure for a scissor lift cylinder includes a shaft assembly, characterized in that it further includes a base, side members, and a folding member; of the two opposite ends of the side member: a first end is fixedly connected to the base, and a second end is used to connect to the scissor lift fork; the folding member includes a horizontal portion fixedly connected to the second end and a vertical portion fixedly connected to the base; the vertical portion and the first end are arranged side by side along the axial direction of the shaft assembly, and both are connected to the shaft assembly to support the shaft assembly.

[0007] When applying the above-mentioned mounting base structure for the scissor lift cylinder, the second end is fixedly connected to the scissor lift fork, making installation simple and convenient. The first end, connected to the second end, and the indirectly connected vertical part both support the shaft assembly, and both are connected to the base piece, ensuring reliable overall connection strength. Furthermore, the side pieces, horizontal parts, vertical parts, and base piece form a box-like structure, providing better support for the shaft assembly and thus better force transmission. Assembly of the mounting base structure mainly involves the assembly of the base piece, side pieces, and folding pieces, making assembly convenient and simple. In summary, the mounting base structure for the scissor lift cylinder effectively solves the problem of poor support for the shaft assembly in current mounting base structures for scissor lift cylinders.

[0008] Preferably, the bottom member is provided with side mounting components at both ends along the axial direction of the shaft device, and the side mounting components at both ends include the side member and the folding member.

[0009] Preferably, the shaft device includes a rotating shaft and bushings, with bushings provided at both ends of the rotating shaft, and the bushings at both ends respectively passing through the side mounting components at both ends.

[0010] Preferably, the bushing is provided with a locking screw, which, when tightened, can prevent axial movement and / or rotation of the rotating shaft.

[0011] Preferably, the folding member is disposed on the inner side of the side member in the axial direction; both the bottom member and the folding member are plate members, the vertical part is disposed perpendicular to the bottom member, the horizontal part is disposed parallel to the bottom member, and the horizontal part and the vertical part are integrally formed and connected.

[0012] Preferably, the side member is a plate, the second end is perpendicular to the bottom member, the first end is axially inward compared to the second end and is connected by a transversely extending intermediate plate, and the end of the first end away from the bottom member is axially inclined outward relative to the other end; the first end, the second end and the intermediate plate are integrally formed and connected.

[0013] Preferably, the first end and the vertical part are both welded to the bottom plate, and the horizontal part is welded to the inner side of the second end.

[0014] Preferably, the end of the bottom member protrudes outward along the axial direction from the side member, and the protruding part is connected to the side member by a stiffening plate.

[0015] Preferably, the bottom component is a pit protection plate trigger pressure plate.

[0016] To achieve the second objective mentioned above, the present invention also provides a scissor lift, which includes a mounting base structure for any of the aforementioned scissor lift telescopic cylinders, and further includes an inner fork and a telescopic cylinder. The side members of the mounting base structure are fixedly connected to the inner fork, and the shaft assembly of the mounting base structure is connected to the telescopic cylinder. Since the mounting base structure for the aforementioned scissor lift telescopic cylinder has the aforementioned technical effects, a scissor lift with this mounting base structure should also have corresponding technical effects. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the mounting base structure of a common scissor lift cylinder in the prior art;

[0019] Figure 2 A schematic diagram of a mounting base structure for a scissor lift cylinder provided in an embodiment of the present invention;

[0020] Figure 3 A schematic diagram of another mounting base structure for a scissor lift cylinder provided in an embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the mounting structure of the mounting base structure on the fork provided in an embodiment of the present invention;

[0022] Figure 5 A schematic diagram of the mounting structure of multiple mounting base structures on multiple forks provided in an embodiment of the present invention;

[0023] Figure 6 A schematic diagram of the mounting structure of the side member provided in an embodiment of the present invention;

[0024] Figure 7 A schematic diagram of the installation structure of the folding component provided in an embodiment of the present invention;

[0025] Figure 8 A schematic diagram of the mounting structure of the base component provided in an embodiment of the present invention;

[0026] Figure 9 This is a schematic diagram of the installation structure of the scissor lift provided in an embodiment of the present invention.

[0027] The following labels are shown in the attached diagram:

[0028] Mounting base structure 1, inner fork 2, telescopic cylinder 3;

[0029] Side piece 11, bottom piece 12, folding piece 13, bushing 14, rotating shaft 15, locking screw 16, stiffening plate 17, first end 111, second end 112, middle plate 113;

[0030] Horizontal part 131, vertical part 132. Detailed Implementation

[0031] This invention discloses a mounting base structure for a scissor lift cylinder, which effectively solves the problem of poor support effect of the current mounting base structure for scissor lift cylinders on the shaft device.

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Please see Figures 2-9 , Figure 2 A schematic diagram of a mounting base structure for a scissor lift cylinder provided in an embodiment of the present invention;

[0034] Figure 3 A schematic diagram of another mounting base structure for a scissor lift cylinder provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the mounting structure of the mounting base structure on the fork provided in an embodiment of the present invention; Figure 5 A schematic diagram of the mounting structure of multiple mounting base structures on multiple forks provided in an embodiment of the present invention; Figure 6 A schematic diagram of the mounting structure of the side member provided in an embodiment of the present invention; Figure 7 A schematic diagram of the installation structure of the folding component provided in an embodiment of the present invention; Figure 8 A schematic diagram of the mounting structure of the base component provided in an embodiment of the present invention; Figure 9 This is a schematic diagram of the installation structure of the scissor lift provided in an embodiment of the present invention.

[0035] In some embodiments, this embodiment provides a mounting structure 1 for a scissor lift cylinder 3, used to mount the fork of the scissor lift and connected between the fork and the telescopic cylinder 3, so that the telescopic cylinder 3 and the fork form a rotatable connection. The telescopic cylinder 3 generally refers to a drive mechanism for driving the extension and retraction of the scissor lift, typically a telescopic hydraulic cylinder. The fork is generally an inner fork 2. The mounting structure 1 allows the telescopic cylinder 3 and the inner fork 2 to rotate relative to each other. It should be noted that the mounting structure 1 can serve as an upper or lower structure; for example, the two ends of the telescopic cylinder 3 in the extension / retraction direction can be connected via the mounting structure 1.

[0036] In some embodiments, the mounting structure 1 may include at least one, more, or even all of the following structures: a shaft assembly, a base 12, a side member 11, and a folding member 13. It should be noted that the base 12, side member 11, and folding member 13 are generally plate parts, and are not required to be standard plate structures. In this case, the base 12, side member 11, and folding member 13 can be a base plate, a side plate, and a folding plate, respectively. Of course, the base 12, side member 11, and folding member 13 may also be partially or entirely made of rods, as needed.

[0037] In some embodiments, the side member 11 has two ends: a first end 111, which is fixedly connected to the base member 12; and a second end 112, which is used to connect to the scissor fork. This allows the base member 12 and the scissor fork to be indirectly connected via the side member 11. The first end 111 and the second end 112 are arranged side-by-side in the radial direction of the shaft assembly, allowing the second end 112 to extend away from the base member 12. In practical applications, when the axial direction of the shaft assembly is horizontal, they are primarily arranged vertically.

[0038] In some embodiments, the first end 111 is fixedly connected to the base 12, such as by screw connection, bolt connection, welding, or integral molding connection. Specifically, the end face of the first end 111 can be abutted against the corresponding side of the base 12, and a welding connection, screw connection, etc., can be achieved between them. The specific connection method can also refer to the connection relationship between other two intersecting plates, which will not be elaborated here.

[0039] In some embodiments, the second end 112 is used to connect the scissor fork, which is generally the inner fork 2. Specifically, it is mainly connected by abutting against the inner fork 2 and the square tube of the inner fork 2, and the connection between them is achieved by welding, screws, bolts, etc. To facilitate the connection, multiple elongated holes can be provided on the second end 112, so that when using screw or bolt connection, the installation position can be adjusted as needed, and at the same time, it can also reduce weight.

[0040] In some embodiments, the folding member 13 includes a horizontal portion 131 fixedly connected to the second end 112 and a vertical portion 132 fixedly connected to the bottom member 12, so that the folding member 13 connects to both the second end 112 and the bottom member 12. This means that the second end 112 can transmit force not only through the first end 111 to the bottom member 12, but also through the folding member 13 to the bottom member 12. It should be noted that the horizontal portion 131 and the vertical portion 132 need to transmit force to each other, and can be directly or indirectly connected, such as through an integral molding connection or a screw or bolt connection. The use of "horizontal" and "vertical" in the names of the horizontal portion 131 and the vertical portion 132 does not limit their spatial structure, but is intended to describe the existence of two parts that respectively connect the bottom member 12 and the second end 112.

[0041] 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 connected to the shaft device to support it, so that both the first end portion 111 and the vertical portion 132 provide support force to the shaft device. The connection is designed to provide support force. If the bushing 14 of the shaft device is connected to the vertical portion 132 and / or the first end portion 111, then the connection is a fixed connection. If the rotating shaft 15 of the shaft device is rotatably connected to the vertical portion 132 and / or the first end portion 111, then the connection is a rotational connection. It should be noted that while the vertical portion 132 and the first end portion 111 are arranged side by side along the axial direction of the shaft device, they are not required to be parallel in the axial direction. More importantly, the vertical portion 132 and the first end portion 111 are staggered along the axial direction, so that they provide support force to different axial portions of the shaft device. In this case, the bottom member 12 serves to reinforce the connection between the vertical portion 132 and the first end portion 111.

[0042] In some embodiments, when using the mounting base structure 1 of the scissor lift cylinder 3, the second end 112 is fixedly connected to the scissor lift fork, making installation simple and convenient. The first end 111, which is connected to the second end 112, and the indirectly connected vertical part 132 both support the shaft device, and both are connected to the base part 12, ensuring reliable overall connection strength. Furthermore, the side part 11, horizontal part 131, vertical part 132, and base part 12 form a box-like structure, which better supports the shaft device and transmits force more effectively. Assembly of the mounting base structure 1 mainly involves the assembly of the base part 12, side part 11, and folding part 13, making assembly convenient and simple. In summary, the mounting base structure 1 of the scissor lift cylinder 3 effectively solves the problem of poor support for the shaft device in current mounting base structures of the scissor lift cylinder 3.

[0043] In some embodiments, the two ends of the shaft assembly can be supported by the same or similar structures, or they can be connected by different structures. For example, one end of the shaft assembly is supported by both the folding member 13 and the side member 11, while the other end of the shaft assembly is supported by the folding member 13 and / or the side member 11. To better support the shaft assembly, specifically, the bottom member 12 is provided with side mounting assemblies at both ends along the axial direction of the shaft assembly, and the side mounting assemblies at both ends include the side member 11 and the folding member 13. It should be noted that the structures of the side mounting assemblies at both ends can be the same or different, and can be set as needed.

[0044] In some embodiments, the shaft device can be a single shaft or include a rotating shaft 15 and bushings 14. The rotating shaft 15 has bushings 14 at both ends, and the bushings 14 at both ends pass through the side mounting assemblies at both ends. Correspondingly, the bushings 14 at both ends each pass through a corresponding end member 13 and side member 11, and are fixedly connected to both the bottom member 12 and the side member 11. Specifically, in the side mounting assembly at either end or one end, the bottom member 12 and the side member 11 may have coaxially arranged through holes, such as cylindrical holes, to mate with the outer diameter of the bushings 14, such as clearance fit or interference fit.

[0045] In some embodiments, for ease of installation and to maintain stability between structures, it is preferable that the bushing 14 is provided with a locking screw 16, which, when tightened, prevents axial movement and / or rotation of the rotating shaft 15. Specifically, the locking screw 16 may be threadedly connected to the bushing 14, and when the locking screw 16 is tightened, the rotating shaft 15 may have an annular groove that mates with the tail of the locking screw 16 to prevent axial movement without preventing rotation; the rotating shaft 15 may have an axial strip groove that mates with the tail of the locking screw 16 to prevent rotation without preventing axial movement; or the rotating shaft 15 may have a radial groove that mates with the tail of the locking screw 16 to prevent both axial movement and rotation. The specific configuration can be adjusted as needed.

[0046] In some embodiments, both ends of the rotating shaft 15 are provided with the aforementioned locking screws 16, or one end of the rotating shaft 15 is provided with the aforementioned locking screws 16.

[0047] In some embodiments, the locking screw 16 may be located between the side member 11 and the folding member 13 of the side-mounted assembly, or it may be located on the side of the side member 11 away from the folding member 13, or on the side of the folding member 13 away from the side member 11. The specific installation position can be set as needed.

[0048] In some embodiments, for better centralized installation, the folding member 13 is preferably disposed on the inner side of the side member 11 in the axial direction, wherein the end near the axial center of the shaft device is the inner side. For the telescopic cylinder 3 installed in the center, the side closer to the telescopic cylinder 3 is the inner side.

[0049] In some embodiments, the vertical portion 132 can be arranged perpendicularly to the bottom member 12, and the horizontal portion 131 can be arranged parallel to the bottom member 12 to better form a box-like structure. Specifically, both the bottom member 12 and the folding member 13 can be plate parts, with the horizontal portion 131 and the vertical portion 132 integrally formed and connected. That is, the folding member 13 can be an L-shaped folding plate.

[0050] In some embodiments, the second end 112 can be arranged perpendicularly to the base member 12, and the first end 111 is axially inward relative to the second end 112 and connected by a laterally extending intermediate plate portion 113. The end of the first end 111 away from the base member 12 is axially inclined outward relative to the other end. Specifically, the side member 11 can be a side plate. The first end 111, the second end 112, and the intermediate plate portion 113 are integrally formed and connected, and further, they can all be flat plate structures. By axially inwardly positioning the first end 111 relative to the second end 112, the entire mounting base structure 1 is retracted towards the shaft device to facilitate subsequent installation.

[0051] In some embodiments, the first end portion 111 and the vertical portion 132 can be welded to the surface of the base member 12 plate, and the horizontal portion 131 can be welded to the inner side of the second end portion 112. When the side member 11 and the folding member 13 are both integrally formed parts, the assembly of the entire structure will be very convenient and simple.

[0052] In some embodiments, the mounting base structure 1 can be used as an upper base structure or a lower base structure. In particular, when used as a lower base structure, in order to ensure strength, it is preferable that the end of the bottom member 12 protrudes outward along the axial direction from the side member 11, and the protruding part is connected to the side member 11 by a stiffener 17 so as to achieve a strengthening effect through the stiffener 17.

[0053] It should be noted that the base piece 12 can be a flat plate structure. In order to enhance strength, the two sides of the base piece 12 can be rolled in the radial direction of the axial device.

[0054] In some embodiments, the bottom component 12 is a pit protection plate trigger pressure plate. This makes the bottom component 12 an integral structure for pressing the pit protection device, an integrated pit protection plate trigger pressure plate structure. When the fork descends and retracts to the bottom, both ends of the bottom component 12 press against the pit protection plate trigger mechanism, thereby controlling the opening and closing of the pit protection device.

[0055] In some embodiments, the cylinder support undergoes structural optimization design. For example, any of the aforementioned mounting structure 1 is designed on the sequentially arranged first inner fork, second inner fork, and third inner fork. The mounting structure 1 is welded from a side member 11, a bottom member 12, and a bushing 14. This reduces the number of parts and welding work. The side member 11 is shaped and optimized according to mechanical topological principles. This achieves structural lightweighting, reduces welding deformation, lowers manufacturing costs, and improves product quality.

[0056] Based on the mounting base structure 1 of the scissor lift cylinder 3 provided in the above embodiments, the present invention also provides a scissor lift, which includes any of the mounting base structures 1 of the scissor lift cylinder 3 in the above embodiments, and further includes an inner fork 2 and a telescopic cylinder 3. The side member 11 of the mounting base structure 1 is fixedly connected to the inner fork 2, and the shaft device of the mounting base structure 1 is connected to the telescopic cylinder 3. Since this scissor lift uses the mounting base structure 1 of the scissor lift cylinder 3 in the above embodiments, the beneficial effects of this scissor lift are explained in the above embodiments.

[0057] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0058] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not 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

1. A mounting base structure for a scissor lift cylinder, comprising a shaft assembly, characterized in that, It also includes a base piece, side pieces, and a folding piece; of the two opposite ends of the side piece: a first end is fixedly connected to the base piece, and a second end is used to connect to the scissor fork; the folding piece includes a horizontal part fixedly connected to the second end and a vertical part fixedly connected to the base piece; the vertical part and the first end are arranged side by side along the axial direction of the shaft device, and both are connected to the shaft device to support the shaft device; the folding piece is disposed on the inner side of the side piece in the axial direction; the base piece and the folding piece are both plate pieces, the vertical part is arranged perpendicular to the base piece, the horizontal part is arranged parallel to the base piece, and the horizontal part and the vertical part are integral. The side member is formed and connected; the side member is a plate, the second end is perpendicular to the bottom member, the first end is axially inward compared to the second end and is connected by a transversely extending intermediate plate, the end of the first end away from the bottom member is axially inclined outward relative to the other end; the first end, the second end and the intermediate plate are integrally formed and connected; the first end and the vertical part are both welded to the bottom member plate surface, and the horizontal part is welded to the inner side surface of the second end; the end of the bottom member protrudes outward along the axial direction from the side member, and the protruding part is connected to the side member by a rib.

2. The mounting base structure for the scissor lift cylinder according to claim 1, characterized in that, The bottom component is provided with side mounting components at both ends along the axial direction of the shaft device, and the side mounting components at both ends include the side component and the folding component.

3. The mounting base structure for the scissor lift cylinder according to claim 2, characterized in that, The shaft device includes a rotating shaft and bushings. The bushings are provided at both ends of the rotating shaft, and the side mounting components at both ends are respectively installed through the bushings at both ends.

4. The mounting base structure for the scissor lift telescopic cylinder according to claim 3, characterized in that, The bushing is provided with a locking screw, which, when tightened, can prevent the axial movement and / or rotation of the rotating shaft.

5. The mounting base structure for the scissor lift cylinder according to any one of claims 1-4, characterized in that, The bottom component is a pit protection plate trigger pressure plate.

6. A scissor lift, comprising an inner fork and a telescopic cylinder, characterized in that, It also includes a mounting base structure for the scissor lift cylinder as described in any one of claims 1-5, wherein the side members of the mounting base structure are fixedly connected to the inner fork, and the shaft assembly of the mounting base structure is connected to the telescopic cylinder.

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