Forklift three-section portal frame quadruple hydraulic pipeline arrangement structure

Abstract

The utility model discloses a forklift three-section gantry quadruple hydraulic pipeline arrangement structure which comprises a high-pressure rubber pipe, a rubber pipe fixing plate, a pipe clamp, a rubber pipe roller mechanism, an accessory connector and a gantry, and the high-pressure rubber pipe is wound around a side cylinder rubber pipe roller mechanism fixed at the position of an upper cross beam and is pulled down to be fixed through the pipe clamp. When the high-pressure rubber hose is distributed and transited towards the middle cylinder, the high-pressure rubber hose is fixed on a lower cross beam rubber hose fixing plate at the position of a lower cross beam by using a hoop, then the high-pressure rubber hose is pulled upwards to be fixed on the middle cylinder rubber hose fixing plate to be wound around a middle cylinder rubber hose roller mechanism, and the high-pressure rubber hose is pulled downwards to be fixed on an accessory rubber hose fixing plate by using a pipe clamp; and finally, connecting with an accessory joint. According to the hydraulic pipeline, the structure that an existing three-section portal frame fourth connection pipeline is arranged on one side of the middle cylinder is omitted, the visual field of a driver is greatly improved, in addition, when the rubber pipe is transited from the side cylinder to the middle cylinder, the hoop is used for bundling the rubber pipe and the rubber pipe fixing plate, many complex steel pipes and transition connectors are omitted, and the manufacturing cost and the labor hour are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of forklift working devices, in particular to a forklift three-section door frame four-joint hydraulic pipeline arrangement structure. Background Art

[0002] At present, in the field of forklift working device technology, the traditional three-section mast consists of three sections, inner, middle and outer, with overlapping multi-stage mast channel steels. Due to the position limitation of the middle cylinder, the space inside the mast is tight, and the space for wrenches to connect the hydraulic joints is narrow, which leads to the disorderly layout of hydraulic pipelines, and the hydraulic joints are not easy to tighten and often leak. Especially when external accessories are needed, a fourth pipeline is required, and the existing fourth pipeline is usually arranged on both sides of the middle cylinder, which makes the driver's already limited operation and driving vision even less, posing a safety hazard. Utility Model Content

[0003] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0004] In view of the above problems existing in the hydraulic pipelines of existing forklifts, the present utility model is proposed. The technical problem solved by the present utility model is that the existing hydraulic pipelines are arranged in a messy manner, occupy a large space, and easily occupy the driver's operating and visual space.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: including a high-pressure hose, a hose fixing plate, a pipe clamp, a hose roller mechanism, an accessory joint and a door frame, wherein: the hose roller mechanism includes a side cylinder hose roller mechanism and a middle cylinder hose roller mechanism, the hose fixing plate includes a lower crossbeam hose fixing plate, a middle cylinder hose fixing plate and an accessory hose fixing plate, upper and lower crossbeams are arranged at the upper and lower ends of the door frame, a middle cylinder is arranged in the middle, the side cylinder hose roller mechanism is installed at the position of the upper crossbeam, the lower crossbeam hose fixing plate and the middle cylinder hose fixing plate are respectively installed at the lower crossbeam The upper beam and the middle cylinder position, in addition, a middle cylinder hose roller mechanism is arranged on the middle cylinder hose fixing plate; the high-pressure hose is passed through the side cylinder hose roller mechanism fixed at the upper beam position and is pulled down to be fixed by a pipe clamp, and when the high-pressure hose is transitioning to the middle cylinder direction, a clamp is used to fix the high-pressure hose on the lower beam hose fixing plate located at the lower beam position, and then the high-pressure hose is pulled upwards to be fixed on the middle cylinder hose fixing plate to pass through the middle cylinder hose roller mechanism, and then the high-pressure hose is pulled downwards to be fixed on the accessory hose fixing plate by a pipe clamp, and finally connected to the accessory joint.

[0006] As a preferred solution of the three-section mast four-connected hydraulic pipeline of the forklift described in the utility model, the mast includes an outer mast, a middle mast and an inner mast, which are arranged in sequence from the outside to the inside, the side cylinder hose roller mechanism is installed on the upper crossbeam of the middle mast, and the lower crossbeam hose fixing plate is fixed on the lower crossbeam of the inner mast.

[0007] As a preferred solution of the forklift three-section gantry four-unit hydraulic pipeline described in the utility model, the side cylinder hose roller mechanism includes two roller seat mounting frames and 7 rollers, the roller seat mounting frame is divided into an upper and lower frame, the upper frame is equipped with 4 rollers, and the lower frame is equipped with 3 rollers, the upper frame and the lower frame are connected by bolts, the rollers are welded to the roller seat mounting frame, and the distribution of the rollers makes the center distance between the high-pressure hoses after winding equal and meets the performance requirements of hose bending.

[0008] As a preferred solution of the forklift three-section gantry four-connected hydraulic pipeline described in the utility model, the middle cylinder hose roller mechanism includes a roller seat mounting frame and 8 rollers, and the distribution requirements of the rollers are the same as those of the side cylinder hose roller mechanism.

[0009] As a preferred solution of the forklift three-section door frame four-connection hydraulic pipeline described in the utility model, the pipe clamp can be a plastic pipe clamp or a double-groove pipe clamp.

[0010] As a preferred solution of the forklift three-section mast four-connected hydraulic pipeline described in the utility model, when the side cylinder hose roller mechanism is installed on the middle mast, the front view reference plane of the side cylinder hose roller mechanism and the front view reference plane of the mast assembly have an angle of 7 degrees.

[0011] As a preferred solution of the forklift three-section gantry four-connected hydraulic pipeline described in the utility model, there are four high-pressure hoses, and the lateral distance and center distance between the four high-pressure hoses and the center distance between the two notches of the rollers are all equal.

[0012] The beneficial effects of the utility model: the three-section mast four-link hydraulic pipeline of the forklift constructed by the utility model cancels the existing structure of arranging the fourth link of the three-section mast on one side of the middle cylinder, and selects a suitable inclination angle when arranging the pipeline, which greatly improves the driver's field of vision. In addition, when the high-pressure hose transitions from the side cylinder to the middle cylinder, it is tied with a clamp and a hose fixing plate. This method is simple to install and easy to maintain, which makes the pipeline arrangement of the hydraulic pipeline neat and beautiful, and at the same time eliminates many complicated steel pipe joints and transition joints, greatly saving manufacturing costs and labor hours. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0014] Figure 1 This is a schematic diagram of the structure of a four-connection hydraulic pipeline of a three-section mast with a double-ear fork of a forklift according to an embodiment of the utility model;

[0015] Figure 2 It is a front view of a middle cylinder roller mechanism of a forklift three-section mast four-connection hydraulic pipeline with a double-ear fork according to an embodiment of the utility model;

[0016] Figure 3 The present invention is a front view of a side cylinder roller mechanism of a forklift three-section mast with double-ear forks and four-connected hydraulic pipelines according to an embodiment of the present invention.

[0017] The markings of the components in the accompanying drawings are as follows: high-pressure hose-1; hose fixing plate-2; lower crossbeam hose fixing plate-210; middle cylinder hose fixing plate-220; accessory hose fixing plate-230; pipe clamp-3; hose roller mechanism-4; side cylinder hose roller mechanism-410; roller seat mounting frame-411; roller-412; middle cylinder hose roller mechanism-420; accessory joint-5; door frame-6; outer door frame-61; middle door frame-62; inner door frame-63. DETAILED DESCRIPTION

[0018] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the drawings of the specification. Obviously, the described embodiments are part of the embodiments of the utility model, but not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary persons in the field without creative work should fall within the scope of protection of the utility model.

[0019] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0020] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0021] The utility model is described in detail with reference to the schematic diagram. When describing the embodiments of the utility model, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general proportion, and the schematic diagrams are only examples, which should not limit the scope of protection of the utility model. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0022] At the same time, in the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper, lower, inner and outer" are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first, second or third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0023] In the present invention, unless otherwise clearly specified and limited, the terms "install, connect, connect" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection or an integral connection; it can also be a mechanical connection, an electrical connection or a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] Example

[0025] Reference Figures 1 to 3 , which is the first embodiment of the utility model, provides a forklift three-section mast four-link hydraulic pipeline arrangement structure, cancels the existing three-section mast fourth-link pipeline arrangement on one side of the middle cylinder structure, as well as the complex steel pipe joints and transition joints, greatly improves the driver's field of vision and saves costs.

[0026] Reference Figure 1A forklift three-section mast four-joint hydraulic pipeline arrangement structure includes a high-pressure hose 1, a hose fixing plate 2, a pipe clamp 3, a hose roller mechanism 4, an accessory joint 5 and a mast 6, wherein the hose roller mechanism 4 includes a side cylinder hose roller mechanism 410 and a middle cylinder hose roller mechanism 420, the hose fixing plate 2 includes a lower crossbeam hose fixing plate 210, a middle cylinder hose fixing plate 210 and an accessory hose fixing plate 220, the mast 6 includes an outer mast 61, a middle mast 62 and an inner mast 63, and are arranged and installed in sequence from the outside to the inside, upper and lower crossbeams are arranged at the upper and lower ends of the mast 6, a middle cylinder is arranged in the middle, the side cylinder hose roller mechanism 410 is installed on the upper crossbeam of the middle mast 62, the lower crossbeam hose fixing plate 210 is fixed on the lower crossbeam of the inner mast 63, the middle cylinder hose fixing plate 210 is installed at the middle cylinder position, and a middle cylinder hose roller mechanism 420 is also arranged on the middle cylinder hose fixing plate 210.

[0027] The pipeline arrangement method of the high-pressure hose 1 is as follows: the high-pressure hose 1 is passed through the side cylinder hose roller mechanism 410 fixed at the upper beam position and is pulled down to be fixed through the pipe clamp 3. When the high-pressure hose 1 transitions to the middle cylinder direction, a clamp is used to fix the high-pressure hose 1 on the lower beam hose fixing plate 210 located at the lower beam position, and then the high-pressure hose 1 is pulled upward and fixed on the middle cylinder hose fixing plate 210 and passed through the middle cylinder hose roller mechanism 420. The high-pressure hose 1 is pulled downward and fixed on the accessory hose fixing plate 220 using the pipe clamp 3, and finally connected to the accessory joint 5.

[0028] It should also be noted that, referring to Figure 2 and 3 The side cylinder hose roller mechanism 410 includes two roller seat mounting frames 411 and seven rollers 412. The roller seat mounting frame 411 is divided into an upper and lower frame. Four rollers 412 are installed on the upper frame, and three rollers 412 are installed on the lower frame. The high-pressure hose 1 is wrapped around the rollers 412. The upper frame and the lower frame are connected by bolts. The roller shafts of the rollers 412 welded on the roller seat mounting frame 411 are fixed with 10# shaft elastic retaining rings. The distribution of the rollers 412 makes the center distances between the high-pressure hoses 1 after wrapping equal and meets the performance requirements of hose bending; the middle cylinder hose roller mechanism includes a roller seat mounting frame 411 and eight rollers 412. The distribution requirements of the rollers 412 are the same as those of the side cylinder hose roller mechanism 410, and the installation method and distribution of the rollers 412 are the same as those of the rollers 412 on the side cylinder hose roller mechanism 410.

[0029] It should also be explained that the pipe clamp 3 fixed near the side cylinder hose roller mechanism 410 is a plastic double-groove pipe clamp, which needs to hold the high-pressure hose 1 with two pieces and is fixed to the middle cylinder hose fixing plate 210 with M8 bolts passing through two 8.5mm holes. The center distance between its two grooves is equal to the center distance between the two grooves of the roller 412. The pipe clamp 3 fixed on the accessory hose fixing plate 220 is a plastic pipe clamp. Due to the space limitation in the door frame 6, two external hexagonal countersunk holes are designed opposite the groove when the pipe clamp 3 is designed. When fixing the high-pressure hose 1, an M8 nut is inserted into the hexagonal hole of the pipe clamp. The high-pressure hose 1 is stuck in the groove of the pipe clamp, and the bolt is inserted from one side of the accessory hose fixing plate 220 to tighten the pipe clamp. The center distance between its two grooves is equal to the center distance between the two grooves of the roller 412.

[0030] It should also be explained in this embodiment that when the side cylinder hose roller mechanism 410 is installed on the middle mast 62, the front view reference plane of the side cylinder hose roller mechanism 410 and the front view reference plane of the mast 6 assembly have an angle of 7 degrees. The design of this angle is to make the hose bending radius meet the hose performance while being able to visually hide the high-pressure hose 1 on the side of the mast channel steel, which greatly improves the utilization of the driver's field of vision.

[0031] It should also be noted that there are four high-pressure hoses 1, and the lateral distance, center distance and center distance between the two notches of the roller 412 of the four high-pressure hoses 1 are all equal. When the high-pressure hose 1 is passed through the middle cylinder hose roller mechanism 420 and is downwardly fixed on the hose fixing plate 2 with the hose clamp 3, the notch of the hose clamp 3 is concentric with the center of the circle of the high-pressure hose 1 bending downward from the roller 412. At this time, the high-pressure hose 1 is in a vertical state relative to the overhead reference plane of the entire working device, which makes the high-pressure hose 1 arranged very neatly in the entire working device.

[0032] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A forklift three-section mast four-joint hydraulic pipeline arrangement structure, characterized in that: It comprises a high-pressure rubber hose (1), a rubber hose fixing plate (2), a pipe clamp (3), a rubber hose roller mechanism (4), an accessory joint (5) and a door frame (6), wherein: The hose roller mechanism (4) comprises a side cylinder hose roller mechanism (410) and a middle cylinder hose roller mechanism (420); the hose fixing plate (2) comprises a lower crossbeam hose fixing plate (210), a middle cylinder hose fixing plate (220) and an accessory hose fixing plate (230); upper and lower crossbeams are arranged at the upper and lower ends of the door frame (6), and a middle cylinder is arranged in the middle; the side cylinder hose roller mechanism (410) is installed at the upper crossbeam position; the lower crossbeam hose fixing plate (210) and the middle cylinder hose fixing plate (220) are installed at the lower crossbeam and the middle cylinder position respectively; in addition, a middle cylinder hose roller mechanism (420) is arranged on the middle cylinder hose fixing plate (220); The high-pressure rubber hose (1) is passed through the side cylinder rubber hose roller mechanism (410) fixed at the upper crossbeam position and pulled down to be fixed by the pipe clamp (3). When the high-pressure rubber hose (1) is transitioned to the middle cylinder direction, the high-pressure rubber hose (1) is fixed to the lower crossbeam rubber hose fixing plate (210) located at the lower crossbeam position by using a clamp. The high-pressure rubber hose (1) is then pulled upwards and fixed to the middle cylinder rubber hose fixing plate (220) and passed through the middle cylinder rubber hose roller mechanism (420). The high-pressure rubber hose (1) is pulled downwards and fixed to the accessory rubber hose fixing plate (230) by using the pipe clamp (3), and finally connected to the accessory joint (5).

2. The forklift three-section mast four-joint hydraulic pipeline arrangement structure according to claim 1, characterized in that: The door frame (6) comprises an outer door frame (61), a middle door frame (62) and an inner door frame (63), which are arranged in sequence from the outside to the inside. The side cylinder hose roller mechanism (410) is installed on the upper crossbeam of the middle door frame (62), and the lower crossbeam hose fixing plate (210) is fixed on the lower crossbeam of the inner door frame (63).

3. The forklift three-section mast four-joint hydraulic pipeline arrangement structure according to claim 2, characterized in that: The side cylinder hose roller mechanism (410) comprises two roller seat mounting frames (411) and seven rollers (412); the roller seat mounting frames (411) are divided into upper and lower frames, the upper frame is mounted with four rollers (412), and the lower frame is mounted with three rollers (412); the upper frame and the lower frame are connected by bolts; the rollers (412) are welded to the roller seat mounting frames (411); the distribution of the rollers (412) ensures that the center distances between the high-pressure hoses (1) after winding are equal and meet the performance requirements of hose bending.

4. The forklift three-section mast four-joint hydraulic pipeline arrangement structure according to claim 3, characterized in that: The middle cylinder hose roller mechanism comprises a roller seat mounting frame (411) and eight rollers (412), and the distribution requirements of the rollers (412) are the same as those of the side cylinder hose roller mechanism (410).

5. The forklift three-section mast four-joint hydraulic pipeline arrangement structure according to any one of claims 1 to 4, characterized in that: The pipe clamp (3) may be a plastic pipe clamp or a double-groove pipe clamp.

6. The forklift three-section mast four-joint hydraulic pipeline arrangement structure according to claim 3, characterized in that: When the side cylinder hose roller mechanism (410) is installed on the middle mast (62), the front view reference plane of the side cylinder hose roller mechanism (410) and the front view reference plane of the mast (6) assembly have an included angle of 7 degrees.

7. The forklift three-section mast four-joint hydraulic pipeline arrangement structure according to claim 1, characterized in that: There are four high-pressure rubber hoses (1), and the lateral distance and center distance between the four high-pressure rubber hoses (1) as well as the center distance between the two notches of the roller (412) are all equal.

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