LPG container support module, method for charging same, and construction equipment comprising same

Abstract

An LPG container support module, a method for charging same, and construction equipment comprising same are disclosed. According to the present disclosure, an LPG container support module may be provided, comprising: a main frame having a plurality of compartment spaces and mounted on the outside of construction equipment; a plurality of pull-out doors provided so as to be openable and closable at the rear end of the main frame and respectively corresponding to the compartment spaces; a cover plate configured to shield the front end of the main frame; a plurality of pairs of sliding bars extending in the front-rear direction inside the main frame and respectively corresponding to the compartment spaces; an LPG container disposed in each compartment space and seated and supported on the sliding bars; and a charging line configured to charge the LPG container with LPG fuel.

Description

LPG container support module, charging method thereof, and construction equipment including the same

[0001] Embodiments of the present disclosure relate to an LPG container support module, a method for charging the same, and construction equipment including the same.

[0002] Recent environmental regulations restricting the use of diesel engines have expanded to the construction equipment sector. Liquefied petroleum gas (LPG) is being actively explored as an alternative to diesel fuel in the construction equipment sector. LPG fuel can be compatible with gasoline engines through some fuel system modifications, while offering a relatively environmentally friendly advantage compared to diesel or gasoline due to its complete combustion. Some small construction equipment, such as forklifts, utilize LPG fuel. Most of these small construction equipment are powered by a single LPG container mounted on the vehicle. For example, Patent No. 10-2050224, "Forklift Fuel Tank Cradle Device," and Patent Publication No. 10-2018-0062680, "Forklift Fuel Tank Mounting Structure," illustrate a single LPG container mounted on the vehicle.

[0003] The above description is provided to aid in understanding the technical background of the present disclosure. Therefore, the above description should not be construed to limit, restrict, or limit the technical concepts of the present disclosure. Furthermore, the contents described or implied in the above description do not necessarily represent prior art. The above description may include some contents that do not correspond to prior art.

[0004] Embodiments of the present disclosure are intended to provide an LPG container support module, etc., which is mounted on construction equipment, etc., to store and supply LPG fuel.

[0005] In addition, embodiments of the present disclosure seek to provide an LPG container support module that can be appropriately utilized in medium and large-sized construction equipment.

[0006] In addition, embodiments of the present disclosure seek to provide an LPG container support module that can improve space efficiency, usability, safety, etc.

[0007] However, the technical challenges that the embodiments of the present disclosure seek to address are not necessarily limited to the technical challenges mentioned above. Other technical challenges not mentioned will be readily apparent to those skilled in the art from the detailed description and other descriptions in the specification.

[0008] According to one aspect of the present disclosure, an LPG container support module may be provided, including: a main frame having a plurality of compartment spaces and mounted on the outside of a construction equipment; a pull-out door provided at the rear end of the main frame to be openable and closable, the pull-out door having a plurality of doors corresponding to each of the compartment spaces; a cover plate for shielding the front end of the main frame; and a pair of sliding bars extending forward and backward from the inside of the main frame, the plurality of sliding bars being provided corresponding to each of the compartment spaces; an LPG container disposed in each of the compartment spaces and supported by and secured to the sliding bars; and a filling line for filling LPG fuel into the LPG container.

[0009] According to another aspect of the present disclosure, a mobile construction equipment powered by LPG fuel may be provided, the construction equipment including: a work tool disposed at the front; a cabin disposed at the rear of the work tool; and an LPG container support module disposed to be exposed to the outside at the rear of the cabin.

[0010] According to another aspect of the present disclosure, a charging method for charging LNG fuel into the above LPG container support module may be provided, comprising: a step of supplying LPG fuel to a first charging port of a first LPG container through a first charging line; and a step of opening a first relief valve provided in a second charging line when the internal pressure of the first LPG container reaches a buffer pressure, and supplying LPG fuel to a second charging port of a second LPG container through the second charging line.

[0011] The LPG container support module according to embodiments of the present disclosure may be installed on construction equipment and the like to store and supply LPG fuel. Here, the LPG container support module may implement a sufficient fuel supply system necessary for operating medium- to large-sized construction equipment and the like, including a plurality of LPG containers.

[0012] Additionally, the LPG container support module according to embodiments of the present disclosure can be configured to have multiple LPG containers arranged in a multi-layered structure. Accordingly, the LPG container support module can be space-efficiently placed in construction equipment, etc.

[0013] Furthermore, the LPG container support module according to embodiments of the present disclosure facilitates the smooth removal and loading of LPG containers, and securely and safely secures LPG containers to mobile equipment such as construction equipment. Furthermore, the LPG container support module facilitates the sequential charging of multiple LPG containers, even when equipped with multiple LPG containers. Accordingly, the LPG container support module can enhance ease of use and safety.

[0014] Meanwhile, the construction equipment and charging method according to the embodiments of the present disclosure may share the technical effects described above by including or using the LPG container support module as described above.

[0015] However, the technical effects that can be achieved through the embodiments of the present disclosure are not necessarily limited to the effects mentioned above. Other technical effects not mentioned will be readily apparent to those skilled in the art to which the present disclosure pertains from other descriptions in the specification, including the detailed description.

[0016] FIG. 1 is a schematic drawing showing an LPG container support module according to one embodiment of the present disclosure mounted on a forklift.

[0017] Figure 2 is a schematic perspective view showing the LPG container support module illustrated in Figure 1 in isolation.

[0018] Figure 3 is a schematic perspective view of the LPG container support module illustrated in Figure 2 viewed from another direction.

[0019] Figure 4 is a schematic perspective view showing one LPG container illustrated in Figure 2 in isolation.

[0020] Figure 5 is a schematic perspective view showing some of the full-out doors of the LPG container support module illustrated in Figure 2 opened.

[0021] Figure 6 is a schematic longitudinal cross-sectional view of the LPG container support module illustrated in Figure 2.

[0022] Figure 7 is a schematic perspective view showing an enlarged view of the locking assembly illustrated in Figure 6.

[0023] Figure 8 is a schematic perspective view showing an enlarged view of the second locking unit illustrated in Figure 7.

[0024] Figure 9 is a schematic cross-sectional view of the second locking unit illustrated in Figure 8.

[0025] Figure 10 is a schematic perspective view showing the cover plate illustrated in Figure 1 in isolation.

[0026] Figure 11 is a schematic front view showing the LPG container support module illustrated in Figure 1 with all pull-out doors open.

[0027] Hereinafter, embodiments of the present disclosure will be described with reference to the attached drawings.

[0028] The following examples are provided to more faithfully and completely explain the technical concepts of the present disclosure to those skilled in the art. Therefore, the technical concepts of the present disclosure are not necessarily limited to the following examples. It should be understood that the present disclosure broadly encompasses various equivalents, alternatives, and variations that implement the technical concepts described below.

[0029] The terminology used in the following description is intended to more faithfully and completely describe specific embodiments from the above perspective. Therefore, the terminology used in the following description should not be construed to limit, restrict, or otherwise limit the technical scope of the present disclosure.

[0030] In the following description, terms such as "first," "second," etc. may be used to refer to specific components and distinguish them from other components. However, such terms are used for clarity of explanation, and the technical concepts of the present disclosure should not be construed as being limited by such terms.

[0031] In the following description, singular expressions may be interpreted to include the plural unless the context clearly excludes them. Furthermore, the expression "includes" in the following description means the presence of the components, parts, operations, features, steps, numbers, etc. described in the description, and does not exclude the addition of one or more other components, parts, operations, features, steps, numbers, etc.

[0032] In the following description, terms related to direction, such as "beneath," "above," "lower," and "upper," may be used to facilitate understanding of components. However, such terms are provided to facilitate understanding of the present disclosure according to various operations, usage states, etc. of the present disclosure, and should not be construed to reduce, limit, or restrict the technical spirit of the present disclosure. For example, terms related to direction may be determined from a relative perspective.

[0033] Meanwhile, in the drawings below, the size of each component may be exaggerated or omitted for convenience and clarity of explanation.

[0034] FIG. 1 is a schematic drawing showing an LPG container support module according to one embodiment of the present disclosure mounted on a forklift.

[0035] Referring to FIG. 1, in some embodiments, an LPG container support module (100) (hereinafter referred to as 'support module (100)') may be provided. The support module (100) may include a plurality of LPG containers (110). The support module (100) may be configured to load a plurality of LPG containers (110). For example, the support module (100) may be configured to load 2 to 6 LPG containers (110). Preferably, the support module (100) may be configured to load four LPG containers (110) as in the illustrated embodiment. The four LPG containers (110) may be arranged in two rows left and right and two layers up and down within the support module (100).

[0036] In some embodiments, the support module (100) may be mounted on construction equipment (200) that uses liquefied petroleum gas (LPG) (hereinafter referred to as “LPG”) as fuel. The support module (100) may be mounted on construction equipment (200) that uses LPG as fuel and used to store and supply LPG fuel. For example, the support module (100) may be mounted on a forklift (200) as in the illustrated embodiment. Alternatively, the support module (100) may be mounted on various construction equipment other than the forklift (200). For example, the support module (100) may be mounted on construction equipment such as a loader, a bulldozer, or an excavator. For convenience, the following description will be given as an example of a case where the support module (100) is mounted on a forklift (200).

[0037] In some embodiments, the construction equipment may include medium- or large-sized construction equipment. That is, the support module (100) may be mounted on the medium- or large-sized construction equipment and used to store and supply LPG fuel. For example, in the illustrated embodiment, the forklift (200) may include a medium- or large-sized forklift (200) having a permissible load of 10 tons or more. It is difficult to sufficiently supply fuel to the medium- or large-sized forklift (200) or construction equipment with a single LPG container (110). Accordingly, the support module (100) according to embodiments of the present disclosure may include multiple LPG containers (110) and may be compatible with the medium- or large-sized forklift (200) or construction equipment.

[0038] In some embodiments, the forklift (200) may be equipped with a work tool such as a fork (210) at the front, and a cabin (220) for an operator to board may be equipped at the rear of the fork (210). In addition, a predetermined loading space (230) may be equipped at the rear of the cabin (220). Here, the loading space (230) refers to a kind of free space in which a predetermined structure, etc. may be arranged. In other words, the loading space (230) does not necessarily refer only to a space intentionally formed for loading cargo, etc. The arrangement of the fork (210), cabin (220), and loading space (230) may be similarly equipped in various construction equipment other than the forklift (200) of the illustrated embodiment.

[0039] In some embodiments, the support module (100) may be placed in the loading space (230). That is, the support module (100) may be placed so as to be seated on the upper portion of the loading space (230) at the rear of the cabin (220). In addition, the support module (100) may be firmly fixed and supported in the loading space (230) by a predetermined fixing means. In some cases, the support module (100) may be integrated into a structure (e.g., a body panel, etc.) that forms a portion of the loading space (230).

[0040] Fig. 2 is a schematic perspective view showing the LPG container support module illustrated in Fig. 1 in an exploded view. Fig. 3 is a schematic perspective view of the LPG container support module illustrated in Fig. 2 viewed from another direction.

[0041] Referring to FIGS. 2 and 3, in some embodiments, the support module (100) may include a main frame (120). The main frame (120) may form the overall exterior of the support module (100) and provide a support structure. In the illustrated embodiment, the main frame (120) is formed as a frame structure having an approximately rectangular parallelepiped shape. In addition, the main frame (120) has twelve main beams (121) extended to correspond to each corner of the rectangular parallelepiped shape, and eight sub-beams (122) extended between the main beams (121). Some of the plurality of sub-beams (122) are formed to extend in the front-back direction from the left and right sides and the upper and lower surfaces of the rectangular parallelepiped shape formed by the main frame (120), and the remaining some are formed to extend in a cross shape from the front and rear surfaces of the rectangular parallelepiped shape.

[0042] In some embodiments, the inner space of the main frame (120) may be partitioned vertically and horizontally. That is, the inner space of the main frame (120) may be partitioned into two partition spaces (123) arranged left and right in the inner lower portion of the main frame (120), and two other partition spaces (123) arranged left and right in the inner upper portion of the main frame (120). In other words, the inner portion of the main frame (120) may be provided with four partition spaces (123) arranged vertically and horizontally. Each partition space (123) may be used for arranging an LPG container (110).

[0043] Meanwhile, in some embodiments, the support module (100) may include a plurality of LPG containers (110). Each LPG container (110) may be arranged to correspond to each compartment space (123) inside the main frame (120). That is, in the illustrated embodiment, the support module (100) may include four LPG containers (110), and the four LPG containers (110) may be arranged vertically and left and right to correspond to each of the four compartment spaces (123) provided inside the main frame (120).

[0044] Fig. 4 is a schematic perspective view showing an LPG container illustrated in Fig. 2 in isolation. For convenience, in Fig. 4, the LPG container illustrated lying down in Fig. 2 is illustrated standing up.

[0045] Referring to FIG. 4, in some embodiments, the LPG container (110) may have a cylindrical shape. The LPG container (110) may have a predetermined storage space therein and store LPG fuel. A liquid-level meter (111), a filling port (112), and a discharge port (113) may be provided on one side (the upper side in the drawing) of the LPG container (110). The liquid-level meter (111) may be configured to detect and display the liquid level of LPG fuel stored in the LPG container (110). The filling port (112) may be configured to supply LPG fuel to the LPG container (110). The filling port (112) may be provided with a filling valve (114) for opening and closing control. The discharge port (113) may be configured to discharge the stored LPG fuel to a forklift (200). The discharge port (113) may be equipped with a discharge valve (115) for opening and closing control.

[0046] In some embodiments, a grip (116) may be provided on one side (the upper side in the drawing) of the LPG container (110). The grip (116) may be used to hold the LPG container (110) when handling it. In the illustrated embodiment, the grip (116) is formed in the shape of a circular ring and extends at a predetermined distance from the main body of the LPG container (110).

[0047] Referring back to FIGS. 2 and 3, in some embodiments, the support module (100) may include a sliding bar (130). A pair of sliding bars (130) may be provided to correspond to each LPG container (110). In the illustrated embodiment, four LPG containers (110) are illustrated, and four pairs of sliding bars (130) may be provided to correspond thereto. A pair of sliding bars (130) may be formed to contact the lower portion of the corresponding LPG container (110) to support the LPG container (110). Each sliding bar (130) may be formed to extend in the front-back direction from the front end to the rear end of the main frame (120), so that the front and rear ends may be supported by the main frame (120). Additionally, a pair of sliding bars (130) may be spaced apart from each other on the left and right at a distance that is a predetermined amount smaller than the diameter of the LPG container (110). Accordingly, the LPG container (110) may be supported by being placed on the pair of sliding bars (130).

[0048] In some embodiments, a pair of sliding bars (130) may function to properly support a corresponding LPG container (110) to the main frame (120). In addition, a pair of sliding bars (130) may have a function of guiding the movement of the LPG container (110) when the LPG container (110) is withdrawn. That is, when the rear pull-out door (140) is opened and the LPG container (110) is withdrawn from the main frame (120), a pair of sliding bars (130) may slide in contact with the bottom surface of the LPG container (110) to assist the withdrawal of the LPG container (110). This will be further explained with reference to FIG. 5, which will be described later.

[0049] In some embodiments, each sliding bar (130) may have a curved outer surface that makes contact with and supports the LPG container (110). Preferably, each sliding bar (130) may have a circular cross-section and may extend in the longitudinal direction (front-backward direction). Such a sliding bar (130) may appropriately contact and slide against the outer surface of the LPG container (110), thereby contributing to smooth withdrawal of the LPG container (110). In some cases, the outer surface of the sliding bar (130) may be coated. For example, the outer surface of the sliding bar (130) may be provided with a PTFE (Polytetrafluoroethylene) coating.

[0050] Meanwhile, in some embodiments, the support module (100) may include a pull-out door (140). A plurality of pull-out doors (140) may be provided to correspond to each compartment space (123). That is, in the illustrated embodiment, four pull-out doors (140) may be provided in the upper, lower, left, and right directions on the front of the main frame (120). The pull-out doors (140) may be arranged on the front of the main frame (120) and formed to open and close the rear of the main frame (120). That is, the pull-out doors (140) may be formed to close and shield the rear of the main frame (120) or open and open the rear of the main frame (120). Each compartment space (123) can be sealed or opened by opening or closing the corresponding pull-out door (140), and each LPG container (110) can be introduced into or withdrawn from each compartment space (123) through the opening formed by opening the pull-out door (140).

[0051] In some embodiments, the pull-out door (140) may be configured to be hinged. Specifically, the pull-out door (140) may be hinged at the bottom to the main frame (120) and may be opened and closed by rotating around the hinge. The pull-out door (140) may be opened by rotating rearward around the hinge, or closed by rotating forward around the hinge. For reference, FIG. 5, which will be described later, illustrates a state in which some pull-out doors (140) are rotated rearward to open.

[0052] In some embodiments, the pull-out door (140) may be provided with a first locking unit (141). The first locking unit (141) may be configured to lock and unlock the rotational opening and closing of the pull-out door (140). That is, the first locking unit (141) locks the pull-out door (140) so that the pull-out door (140) remains closed, or unlocks the pull-out door (140) so that the pull-out door (140) can be opened. In some cases, a pair of first locking units (141) may be provided for one pull-out door (140), and the pair of first locking units (141) may be spaced apart from each other left and right at the top of the pull-out door (140). In addition, the first locking unit (141) may be provided in multiple units or sets to correspond to each pull-out door (140). In the illustrated embodiment, four sets of the first locking unit (141) are provided to correspond to four pull-out doors (140). The detailed structure of the first locking unit (141) will be described in detail later in relation to the second locking unit (152).

[0053] In some embodiments, the pull-out door (140) may be formed with an access hole (142). The access hole (142) may be formed to penetrate the center of the pull-out door (140) from front to back. The access hole (142) may be used as a connection passage between an LPG container (110) positioned on the inside (rear) of the pull-out door (140) and external components. For example, the access hole (142) may function as a connection passage for connecting a piping line to a charging port (112) or a discharge port (113). In addition, the access hole (142) may also function as a visual passage for a user to view a detection value of a liquid level gauge (111), etc.

[0054] Meanwhile, in some embodiments, the support module (100) may include a locking assembly (150). The locking assembly (150) may be configured to bind and secure an LPG container (110) mounted on a sliding bar (130). A plurality of locking assemblies (150) may be provided to correspond to each LPG container (110). In the illustrated embodiment, four locking assemblies (150) are provided to correspond to four LPG containers (110).

[0055] The locking assembly (150) may be formed to be fastened to the outer surface of the corresponding LPG container (110) and to restrain and fix the LPG container (110). Preferably, the locking assembly (150) may be formed to be tightly wound around the outer surface of the LPG container (110) and to bind the LPG container (110). In some embodiments, the locking assembly (150) may be arranged relatively adjacent to the front end of the LPG container (110) or the main frame (120). That is, the locking assembly (150) may be formed to be arranged to be biased toward the front end from the front-rear center of the main frame (120) and to bind the front end portion of the LPG container (110). This can contribute to facilitating separation between the locking assembly (150) and the LPG container (110) when the LPG container (110) is withdrawn through the rear pull-out door (140) after unlocking the locking assembly (150).

[0056] Meanwhile, in some embodiments, the support module (100) may include a cover plate (160). The cover plate (160) may be fastened to the front of the main frame (120) and formed to shield the front of the main frame (120). That is, the rear of the main frame (120) may be shielded by the aforementioned pull-out door (140), and the front may be shielded by the cover plate (160). In some cases, a plurality of cover plates (160) may be provided. In the illustrated embodiment, two cover plates (160) are provided, one above the other. The upper cover plate (160) corresponds to a pair of compartment spaces (123) arranged on the upper side, and shields the upper front surface of the main frame (120), and the lower cover plate (160) corresponds to a pair of compartment spaces (123) arranged on the lower side, and shields the lower front surface of the main frame (120).

[0057] Meanwhile, in some embodiments, the support module (100) may include a pull-out unit (170). The pull-out unit (170) may be used to pull out an LPG container (110) placed on the main frame (120). In some embodiments, the pull-out unit (170) may be configured as a wire winch. The pull-out unit (170) may be formed such that an end of a wire is fastened to a grip (116) of the LPG container (110) to pull out the LPG container (110) rearward. The pull-out unit (170) may be placed on the upper side of the main frame (120) via a supporter (171). The supporter (171) may be configured with a longitudinal beam that is mounted on the main frame (120) and extends vertically, and a transverse beam that extends from the longitudinal beam toward the upper space of the main frame (120). Preferably, the supporter (171) may be formed to be detachable from the main frame (120). In this case, the support module (100) may be appropriately installed on the main frame (120) or separated (removed) from the main frame (120) depending on the usage environment.

[0058] Figure 5 is a schematic perspective view showing some of the full-out doors of the LPG container support module illustrated in Figure 2 opened.

[0059] Referring to Fig. 5, in some embodiments, the pull-out door (140) can be rotated around a hinge at the bottom. The pull-out door (140) can be rotated rearward around the hinge to open the rear of the corresponding compartment space (123). Fig. 5 illustrates an example in which two pull-out doors (140) arranged on the upper side are opened. The LPG containers (110) arranged in each compartment space (123) can be taken out from each compartment space (123) through the opened rear as described above. In addition, in some cases, the LPG containers (110) can be introduced into the compartment space (123) through the opened rear as described above.

[0060] Specifically, the pull-out door (140) is opened, and the pull-out unit (170) can be fastened to the LPG container (110). The end of the wire of the pull-out unit (170) can be fastened to the grip (116) of the LPG container (110). For convenience of illustration, the pull-out unit (170) is omitted in FIG. 5. Next, the locking assembly (150) is unlocked, and the pull-out unit (170) pulls the LPG container (110) rearward via the wire. Accordingly, the LPG container (110) can be transported rearward while sliding in contact with the sliding bar (130), and can be pulled out of the main frame (120) through the open rear of the compartment space (123).

[0061] Fig. 6 is a schematic longitudinal cross-sectional view of the LPG container support module illustrated in Fig. 2. Fig. 7 is a schematic perspective view showing an enlarged view of the locking assembly illustrated in Fig. 6.

[0062] Referring to FIGS. 6 and 7, in some embodiments, the locking assembly (150) may include a locking belt (151). The locking belt (151) may have a flexible belt shape and may be formed to extend to a predetermined length. The locking belt (151) may be fastened to the outer surface of a corresponding LPG container (110) and used to restrain and secure the LPG container (110).

[0063] In some embodiments, a first clip (151a) may be fastened to one longitudinal end of the locking belt (151). In addition, the first clip (151a) may be hinge-coupled to a first link (151b) extending from the sliding bar (130). Accordingly, one end of the locking belt (151) may be formed to be rotatable with respect to the sliding bar (130). A buckle (151c) may be provided at an opposite longitudinal end of the locking belt (151). The buckle (151c) may be fastened to a second locking unit (152). The second locking unit (152) may be formed to lock the locking belt (151) by engaging with the buckle (151c) or to unlock the locking belt (151) by releasing the engagement with the buckle (151c) depending on a user's operation. Meanwhile, the second locking unit (152) can be coupled to the second link (154a) via the second clip (153) and the third clip (154). The second link (154a) can be formed to extend from another sliding bar (130) that forms a pair with the sliding bar (130), and the third clip (154) can be hinge-coupled to the second link (154a). Accordingly, the opposite end of the locking belt (151) can be formed to be rotatable with respect to the other sliding bar (130).

[0064] Meanwhile, in some embodiments, the locking assembly (150) may include a second locking unit (152). The second locking unit (152) may be configured to lock or unlock the locking belt (151) as described above. The second locking unit (152) may be configured generally similarly to the first locking unit (141) described above. Accordingly, a detailed description of the first locking unit (141) will be replaced by a description of the second locking unit (152) described below.

[0065] In some embodiments, the locking assembly (150) as described above may be arranged to be offset to a certain extent from the front-rear center of the main frame (120) toward the front end. Preferably, the locking assembly (150) may be arranged at a position adjacent to the front end of the main frame (120) or adjacent to the front end of the LPG container (110). This may contribute to facilitating separation between the locking assembly (150) and the LPG container (110) when the LPG container (110) is withdrawn through the rear pull-out door (140).

[0066] Fig. 8 is a schematic perspective view showing an enlarged view of the second locking unit illustrated in Fig. 7. Fig. 9 is a schematic longitudinal cross-sectional view of the second locking unit illustrated in Fig. 8.

[0067] Referring to FIGS. 8 and 9, in some embodiments, the second locking unit (152) may include a locking bar (152a). The locking bar (152a) may be formed in a bar shape having an approximately 'U' shape. The upper end of the locking bar (152a) may be coupled with a buckle (151c) provided on the locking belt (151). The second locking unit (152) may be locked when the locking bar (152a) is coupled to the buckle (151c), or may be unlocked when the coupling between the locking bar (152a) and the buckle (151c) is released or loosened. Meanwhile, the lower end of the locking bar (152a) may be hinge-coupled with a locking lever (152e) via a second hinge shaft (152f).

[0068] In some embodiments, the second locking unit (152) may include a locking unit body (152b). The locking unit body (152b) may be coupled to and fixed by a second clip (153). In addition, the locking unit body (152b) may be hinge-coupled to a locking lever (152e) via a first hinge axis (152c). The locking lever (152e) may be rotatably operated about the first hinge axis (152c). In addition, a first engaging end (152d) may be formed at the lower end of the locking unit body (152b). The first engaging end (152d) may be formed to be capable of engaging with a second engaging end (152i) of the pole lever (152g) in relation to the pole lever (152g) described later.

[0069] In some embodiments, the second locking unit (152) may include a locking lever (152e). The locking lever (152e) may be formed to be extended to a predetermined length to enable an easy grip by a user. In addition, the locking lever (152e) may be hingedly connected to the locking unit body (152b) via a first hinge axis (152c). In the illustrated embodiment, the first hinge axis (152c) is disposed adjacent to the upper end of the locking lever (152e). In addition, the locking lever (152e) may be hingedly connected to the locking bar (152a) via a second hinge axis (152f). In the illustrated embodiment, the second hinge axis (152f) is disposed approximately at the longitudinal center of the locking lever (152e).

[0070] In some embodiments, the second locking unit (152) may include a pole lever (152g). In the illustrated embodiment, the pole lever (152g) is disposed approximately between the locking lever (152e) and the second clip (153). The pole lever (152g) may be hinge-coupled to the locking lever (152e) via a third hinge axis (152h). Accordingly, the pole lever (152g) may be pivotally operated with respect to the locking lever (152e) about the third hinge axis (152h). In addition, a second engaging member (152i) may be formed at the upper end of the pole lever (152g). The second engaging member (152i) may be engagingly coupled with the first engaging member (152d) of the locking unit body (152b). Although not shown, in some cases, the pole lever (152g) may be elastically supported for rotation around the third hinge axis (152h) by an elastic means such as a spring.

[0071] The second locking unit (152) as described above can be operated to keep the locking belt (151) in a locked state by restricting the rotation of the locking lever (152e), or to unlock the locking belt (151) by releasing the rotation of the locking lever (152e). Specifically, the illustrated state exemplifies a locked state, and in the locked state, the second engaging end (152i) of the pole lever (152g) can be engaged with the first engaging end (152d) of the locking unit body (152b). As the first and second engaging ends (152d, 152i) are engaged, the locking lever (152e) is restricted from rotating about the first hinge axis (152c), thereby maintaining the locked state. Meanwhile, in the illustrated state, when the user's operating force is applied and the pole lever (152g) is rotated a predetermined amount (counterclockwise in the drawing) around the third hinge axis (152h), the second engaging member (152i) can be separated from the first engaging member (152d). Accordingly, the rotational constraint of the locking lever (152e) is released, and the locking lever (152e) can be rotated around the first hinge axis (152c). In addition, when the locking lever (152e) is rotated, the connection between the locking bar (152a) and the buckle (151c) becomes loose, and the locking bar (152a) can be separated from the buckle (151c). Accordingly, the restraint of the LPG container (110) by the locking belt (151) is released, and the locking belt (151) can be detached from the outer surface of the LPG container (110) and converted to a detachable state.

[0072] Meanwhile, in some embodiments, the second clip (153) and the third clip (154) may be connected via a clip connection nut (155a) and a clip connection bolt (155b). The clip connection bolt (155b) may be screw-connected to the second and third clips (153, 154), respectively, and the clip connection nut (155a) may be screw-connected to each end of the clip connection bolt (155b) to limit the detachment of the second and third clips (153, 154). The clip connection bolt (155b) and the clip connection nut (155a) may be used to appropriately adjust the gap between the second and third clips (153, 154). Through this, the user may appropriately adjust the tension of the locking belt (151) depending on the size or shape of the LPG container (110).

[0073] Figure 10 is a schematic perspective view showing the cover plate illustrated in Figure 1 in isolation.

[0074] Referring to FIG. 10, in some embodiments, the cover plate (160) may be formed in a substantially rectangular plate shape. As described above, the cover plate (160) may be formed to shield the front of the main frame (120) in correspondence with a pair of partition spaces (123) arranged left and right. A folded end (161) may be formed on the edge of the cover plate (160). The folded end (161) may be formed by bending a portion of the edge of the cover plate (160) toward the front. The folded end (161) may be coupled to the main frame (120) to support and mount the cover plate (160) on the main frame (120).

[0075] In some embodiments, the cover plate (160) may have a rear surface (162) arranged toward the compartment space (123), and a guide rib (163) may be provided on the rear surface (162) of the cover plate (160). In some cases, a plurality of guide ribs (163) may be provided, and in the illustrated embodiment, a pair of guide ribs (163) are provided on the left and right sides of the rear surface (162) of the cover plate (160). The guide rib (163) may be coupled to the front end of the corresponding LPG container (110). Accordingly, the LPG container (110) may be supported by having its rear surface contact the rear surface of the pull-out door (140) while being arranged in the compartment space (123), and its front end may be coupled to and supported by the guide rib (163). The guide rib (163) can be formed to extend into an arc shape that is approximately semicircular. The lower end of the guide rib (163) is formed to be open, thereby enabling it to correspond to various shapes of the front end of the LPG container (110).

[0076] In some embodiments, a pusher unit (164) may be provided on the rear surface (162) of the cover plate (160). The pusher unit (164) may be arranged inside an arc shape formed by the guide rib (163). For reference, the illustrated embodiment exemplifies a case in which the pusher unit (164) is provided only on the guide rib (163) arranged on one side (right side). The pusher unit (164) may be provided on each guide rib (163) or may be selectively provided on some of the guide ribs (163) among a plurality of guide ribs (163).

[0077] The pusher unit (164) may function to assist the function of the guide rib (163) according to the specific shape or specification of the LPG container (110). In some embodiments, the pusher unit (164) may be composed of a pusher porter (164a) formed on the rear surface (162) of the cover plate (160) and a pusher bracket (164b) that is connected to the pusher porter (164a) so as to be positionally adjustable in the front and rear directions.

[0078] Specifically, the pusher supporter (164a) may be formed to protrude from the rear surface (162) of the cover plate (160) and may be extended so that the outer peripheral surface forms a substantially circular or arcuate shape. In the illustrated embodiment, the pusher supporter (164a) is illustrated as a partial circular shape in which a chord is cut off at a portion of the lower part. An outer screw (164c) may be formed on the outer peripheral surface of the pusher supporter (164a). The outer screw (164c) may be screw-coupled with the inner screw (164e) of the pusher bracket (164b). Meanwhile, the pusher bracket (164b) may have a rear surface that forms a substantially circular plane. The rear surface of the pusher bracket (164b) may function to contact and support the front end of the LPG container (110). In addition, the pusher bracket (164b) may be provided with a flange (164d) that extends forward by a predetermined amount from the outer edge of the rear side. An inner screw (164e) that is screw-connected with the aforementioned outer screw (164c) may be formed on the inner circumferential surface of the flange (164d). The pusher bracket (164b) may be supported on the pusher supporter (164a) by the inner screw (164e) being screw-connected to the outer screw (164c). In addition, the pusher bracket (164b) may be rotated relative to the pusher supporter (164a) according to the screw connection, so that the amount of rearward protrusion may be appropriately adjusted. By using this, the user can adjust the front-rear position of the pusher bracket (164b) in response to the shape of the LPG container (110), etc.

[0079] Figure 11 is a schematic front view showing the LPG container support module illustrated in Figure 1 with all pull-out doors open.

[0080] Referring to FIG. 11, in the illustrated embodiment, the interior of the main frame (120) can be divided into four compartment spaces (123). For convenience, the compartment space (123-1) located at the lower left in the drawing will be referred to as the first compartment space (123-1) hereinafter, and the remaining compartment spaces (123-2, 123-3, 123-4) in the counterclockwise direction based on the first compartment space (123-1) will be referred to as the second to fourth compartment spaces (123-2, 123-3, 123-4). The first and second compartment spaces (123-1, 123-2) are located in the lower region of the main frame (120), and the third and fourth compartment spaces (123-3, 123-4) are located in the upper region of the main frame (120). Meanwhile, LPG containers (110) may be placed in each of the first to fourth compartment spaces (123-1 to 123-4). Similarly to the first to fourth compartment spaces (123-1 to 123-4), each LPG container (110) is referred to as the first to fourth LPG containers (110-1 to 110-4). In addition, the charging ports (112) provided in each LPG container (110) are referred to as the first to fourth charging ports (112-1 to 112-4).

[0081] In some embodiments, the support module (100) may include a charging line (180) for supplying (charging) LPG fuel to first to fourth LPG containers (110-1 to 110-4). The charging line (180) may include first to fourth charging lines (181 to 184). The first charging line (181) may be connected from an external source through which LPG fuel is supplied to the first charging port (112-1). The second charging line (182) may be connected from the first charging port (112-1) to the second charging port (112-2). Similarly, the third charging line (183) can be connected from the second charging port (112-2) to the third charging port (112-3), and the fourth charging line (184) can be connected from the third charging port (112-3) to the fourth charging port (112-4). That is, the first to fourth charging lines (181 to 184) can be sequentially connected via the first to fourth charging ports (112-1 to 112-4).

[0082] The first to fourth charging lines (181 to 184) as described above can sequentially charge LPG fuel supplied from the outside into the first to fourth LPG containers (110-1 to 110-4). That is, the LPG fuel can be preferentially charged into the first LPG container (110-1) through the first charging line (181) and the first charging port (112-1), and when the charging of the first LPG container (110-1) is completed, the LPG fuel can be sequentially charged into the second LPG container (110-2) through the second charging line (182) and the second charging port (112-2). Similarly, when the filling of the second LPG container (110-2) is completed, LPG fuel can be sequentially filled into the third LPG container (110-3) and the fourth LPG container (110-4). This method has the advantage of simplifying the connection or removal work of the filling line for each LPG container (110-1 to 110-4) and facilitating the filling of multiple LPG containers (110-1 to 110-4).

[0083] In some embodiments, a first relief valve (181a) may be provided at the rear end of the first charging port (112-1). That is, a first relief valve (181a) may be provided at the second charging line (182) connecting the first charging port (112-1) and the second charging port (112-2). Similarly, a second relief valve (182a) may be provided at the rear end of the second charging port (112-2), and a third relief valve (183a) may be provided at the rear end of the third charging port (112-3). The first to third relief valves (181a, 182a1 183a) allow the next LPG container (110-1 to 110-4) to be sequentially filled when the filling of each LPG container (110-1 to 110-4) is completed. That is, when the first LPG container (110-1) reaches the buffer pressure, the first relief valve (181a) opens so that the second LPG container (110-2) can be filled. Similarly, when the second LPG container (110-2) reaches the buffer pressure, the third LPG container (110-3) can be filled, and when the third LPG container (110-3) reaches the buffer pressure, the fourth LPG container (110-4) can be filled. This method has the advantage of effectively preventing overpressure during charging while simplifying the charging process.

[0084] In some embodiments, a safety valve (184a) may be provided at the rear end of the fourth charging port (112-4). The safety valve (184a) may be configured to open and release excess pressure when the internal pressure of the fourth LPG container (110-4) reaches a set value. Accordingly, safety accidents due to overcharging or explosions due to rapid pressure increases can be prevented in advance.

[0085] Meanwhile, according to another aspect of the present disclosure, construction equipment including the support module (100) described above may be provided. For reference, a forklift (200) equipped with the support module (100) is illustrated in the aforementioned FIG. 1.

[0086] According to another aspect of the present disclosure, a charging method for charging LPG into a support module (100) as described above may be provided. The charging method according to this aspect may be configured to sequentially charge LPG fuel into a plurality of LPG containers (110-1 to 110-4). Such a charging method may be implemented similarly to that described above with reference to FIG. 11.

[0087] As described above, the LPG container support module according to the embodiments of the present disclosure can be installed on construction equipment and the like to store and supply LPG fuel. Here, the LPG container support module can implement a sufficient fuel supply system necessary for operating medium- to large-sized construction equipment and the like, including a plurality of LPG containers.

[0088] Additionally, the LPG container support module according to embodiments of the present disclosure can be configured to have multiple LPG containers arranged in a multi-layered structure. Accordingly, the LPG container support module can be space-efficiently placed in construction equipment, etc.

[0089] Furthermore, the LPG container support module according to embodiments of the present disclosure facilitates the smooth removal and loading of LPG containers, and securely and safely secures LPG containers to mobile equipment such as construction equipment. Furthermore, the LPG container support module facilitates the sequential charging of multiple LPG containers, even when equipped with multiple LPG containers. Accordingly, the LPG container support module can enhance ease of use and safety.

[0090] Meanwhile, the construction equipment and charging method according to the embodiments of the present disclosure may share the technical effects described above by including or using the LPG container support module as described above.

[0091] Although the embodiments of the present disclosure have been described above, a person having ordinary skill in the art will be able to modify or change the present disclosure in various ways by adding, changing, deleting or adding components, etc., within the scope that does not depart from the technical idea of ​​the present disclosure described in the claims, and this will also be considered to be included in the scope of the rights of the present disclosure.

Claims

1. A main frame equipped with multiple compartments and mounted on the outside of the construction equipment; A pull-out door which is openable and closable at the rear end of the main frame and which is provided in multiple numbers to correspond to each compartment space; A cover plate shielding the main frame shear; A pair of sliding bars extending forward and backward from the inside of the main frame, and a plurality of pairs provided to correspond to each compartment space; An LPG container placed in each of the above compartments and supported by the sliding bar; and An LPG container support module including a filling line for filling LPG fuel into the above LPG container.

2. In claim 1, The above-mentioned plurality of compartment spaces are LPG container support modules arranged vertically and horizontally inside the main frame.

3. In claim 1, The above pull-out door is an LPG container support module formed so that the lower part is hinged to the main frame and can be opened and closed by rotating around the hinge.

4. In claim 3, The above pull-out door is an LPG container support module having a first locking unit that is spaced apart from the left and right at the top of the pull-out door and locks or unlocks the rotation opening and closing of the pull-out door.

5. In claim 4, The above pull-out door is an LPG container support module having an access hole formed through the center to enable access of external components from the outside of the pull-out door to the inside of the main frame.

6. In claim 1, The above cover plate is provided with a guide rib on the rear side facing the compartment space, The above guide rib is formed to extend in a partial arc shape on the rear surface and is connected to the front end of the LPG container, which is an LPG container support module.

7. In claim 6, The above cover plate is an LPG container support module having a bending end formed along the edge to be joined to the main frame.

8. In claim 1, The above cover plate is equipped with a pusher unit on the rear side, The above pusher unit, A pusher formed protrudingly on the rear surface, having an outer circumferential surface having a partial arc shape, and having an outer screw provided on the outer circumferential surface; and An LPG container support module having an inner screw screwed to the outer screw on the inner circumference surface, formed to be positionally adjustable forward and backward with respect to the pusher supporter, and including a pusher bracket whose rear surface contacts and supports the front end of the LPG container.

9. In claim 1, The above sliding bar is an LPG container support module having a circular cross-section and extending in the front-back direction, and having an outer surface coated to assist in contact sliding of the LPG container.

10. In claim 1, An LPG container support module comprising a locking assembly formed to lock or unlock the LPG container on the pair of sliding bars, the locking assembly being provided to correspond to each of the above compartment spaces.

11. In claim 10, The above locking assembly, A locking belt that is hingedly connected to a first link extended from the sliding bar through the first clip and extended in the longitudinal direction and fastened to the outer surface of the LPG container; and An LPG container support module, comprising a second locking unit formed detachably at an opposite end of the locking belt, and having the opposite end hingedly connected to a second link extending from another sliding bar corresponding to the sliding bar via a second clip and a third clip.

12. In claim 11, The above second locking unit, A locking bar formed to be hooked to the buckle of the above locking belt; A locking unit body that is fastened to the second clip and to which the locking bar is hingedly connected via the second hinge axis; A locking lever rotatably connected to the locking unit body through the first hinge axis; and An LPG container support module including a pole lever rotatably connected to the locking lever via a third hinge axis.

13. In claim 12, The above-mentioned pole lever has a first engaging end provided in the locking unit body and a second engaging end formed to be engagingly connected, The above second engaging member is an LPG container support module in which engaging and disengaging with the first engaging member is performed as the pole lever rotates about the third hinge axis relative to the locking lever.

14. In claim 10, The above locking assembly is an LPG container support module formed to bind the front end portion of the LPG container by being positioned with a predetermined degree of offset from the front and rear center of the LPG container.

15. In claim 1, The above charging line is, A first charging line connected to a first LPG container among the plurality of LPG containers and supplying LPG fuel to a first charging port of the first LPG container; and An LPG container support module including a second charging line that is connected from the first charging port to a second LPG container, which is another one of the plurality of LPG containers, and sequentially supplies LPG fuel to the second charging port of the second LPG container.

16. In claim 15, An LPG container support module, wherein the charging line includes a first relief spout formed at the rear end of the first charging port and the second charging line to open when the internal pressure of the first LPG container reaches the buffer pressure.

17. In claim 15, The above charging line is, A third charging line connected from the second charging port to another one of the plurality of LPG containers, a third LPG container, sequentially supplying LPG fuel to the third charging port of the third LPG container; and A fourth charging line is connected from the third charging port to another one of the plurality of LPG containers, a fourth LPG container, and sequentially supplies LPG fuel to the fourth charging port of the fourth LPG container. The above 1st to 4th LPG containers are LPG container support modules arranged vertically and horizontally within the main frame.

18. In claim 17, An LPG container support module, wherein the charging line includes a safety valve provided at the rear end of the fourth charging port and configured to release excess pressure into the atmosphere when the internal pressure of the fourth LPG container reaches a set pressure.

19. As a mobile construction equipment powered by LPG fuel, Work tools placed in the front; A cabin positioned at the rear of the above working tool; and Construction equipment comprising an LPG container support module of claim 1, which is positioned so as to be exposed to the outside at the rear of the cabin.

20. A charging method for charging LPG fuel into the LPG container support module of claim 1, A step in which LPG fuel is supplied to the first charging port of the first LPG container through the first charging line; and A filling method comprising a step of opening a first relief valve provided in a second filling line when the internal pressure of the first LPG container reaches a buffer pressure, and supplying LPG fuel to a second filling port of the second LPG container through the second filling line.

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