Workbench and support device

Abstract

The utility model discloses a workbench and supporting device, the workbench includes two board assemblies, two outside support legs and middle support leg, and the board assembly includes the plate body, horizontal rod body and two longitudinal rod bodies, the horizontal rod body is arranged in the inner end of the plate body, and two longitudinal rod bodies are arranged on the opposite sides of the plate body, the inner end of two longitudinal rod bodies is connected with the horizontal rod body, and the opposite sides of the top of outside support leg are rotatably installed on the outer end of two longitudinal rod bodies, the top of outside support leg and the outer end of longitudinal rod body have first locking position, and the first locking position is adjacent with the pivot of longitudinal rod body and outside support leg, and the opposite sides of the top of middle support leg are rotatably installed on the inner end of two longitudinal rod bodies respectively, and the top of middle support leg and the inner end of longitudinal rod body have second locking position, and the second locking position is adjacent with the pivot of longitudinal rod body and middle support leg.

Description

Technical Field

[0001] This utility model relates to a workbench and a support device, wherein the workbench has a stable structure after being unfolded. Background Technology

[0002] Workbenches have a wide range of uses in daily life and production. They can be used not only as tables but also as devices for supporting tools. In Chinese invention patent application CN111734101A, the inventors disclosed a folding workbench, which includes a tabletop and support legs. The upper ends of the support legs are hinged to both ends of the tabletop along its length. The tabletop consists of a left tabletop and a right tabletop, each having a lower surface. A pair of locking mechanisms are provided between the lower surfaces of the left and right tabletops. Each locking mechanism is located on both sides of the tabletop's width direction and includes a first hinge plate, a second hinge plate, a locking pin guide seat, a locking pin, and an elastic element. One of the left and right tabletops is fixed to the first hinge plate, and the other is fixed to the second hinge plate. The first hinge plate is located on the width direction of the tabletop. The inner side of the second hinge plate; the first hinge plate and the second hinge plate are hinged to each other around a hinge point, and the line connecting the hinge points in the two locking mechanisms is located on the same horizontal straight line in the width direction of the table surface, so as to form the folding and unfolding of the left and right table surfaces; the first hinge plate and the second hinge plate each have positioning holes symmetrically and horizontally opened on both sides of the hinge point; the locking pin guide seat is fixedly installed on one of the left and right table surfaces, and is located on the inner side of the first hinge plate on the table surface; the locking pin guide seat has a guide hole, and the axis of the guide hole is parallel to the axis of the positioning hole on the first hinge plate and the second hinge plate; the locking pin passes through the guide hole of the locking pin guide seat and then engages with the first hinge plate and the second hinge plate. The positioning holes engage to form the locked state of the locking mechanism; after the locking pin passes through the guide hole of the locking pin guide seat, it disengages from the positioning hole on the second hinge plate and engages with the positioning hole on the first hinge plate to form the unlocked state of the locking mechanism; the locking pin is provided with a first limiting part for restricting the outward movement of the locking pin and a second limiting part for restricting the inward movement of the locking pin; for the first limiting part, a first axial limiting surface is provided on one of the first hinge plate, the second hinge plate, or the locking pin guide seat. In the locked state, the first limiting part contacts and engages with the first axial limiting surface to restrict the position of the locking pin relative to the locking pin guide seat on the axis of the guide hole to move outward. At this time, the locking pin passes through the first... The positioning hole on the first hinge plate then enters the positioning hole on the second hinge plate, fixing the first and second hinge plates relatively. For the second limiting part, a second axial limiting surface is provided on the locking pin guide seat. In the unlocked state, the second limiting part contacts and engages with the second axial limiting surface to restrict the locking pin's inward movement relative to the locking pin guide seat along the axis of the guide hole. At this time, the locking pin disengages from the positioning hole on the second hinge plate and is located within the positioning hole on the first hinge plate, allowing the first and second hinge plates to rotate and hinge. The elastic element provides a restoring force to the locking pin in the direction of the positioning hole. The elastic element is positioned and connected to the locking pin and acts on the locking pin in the width direction horizontal to the platform.The locking pin has a front face for abutting against the elastic element, with the front face facing inwards towards the table surface; corresponding to the front face, the locking pin guide seat has a rear face for abutting against the elastic element, with the rear face facing in the opposite direction to the front face. The shortcomings of existing folding worktables are: firstly, the complex structure of existing folding worktables leads to higher costs; secondly, when unfolded, the bottom of the support legs protrudes from the table surface, causing the worktable to occupy more space, and the support legs are easily kicked by people in the surrounding environment, affecting the stability of the worktable; thirdly, the structure of existing folding worktables prevents the installation of wheels on the bottom of the support legs, making the worktable inconvenient to move. Utility Model Content

[0003] One objective of this invention is to provide a workbench and a support device, wherein, when the workbench is unfolded, the top of the outer support leg and the outer end of the longitudinal rod have at least one first locking position, and the first locking position is adjacent to the pivot of the longitudinal rod and the outer support leg; the top of the middle support leg and the inner end of the longitudinal rod have at least one second locking position, and the second locking position is adjacent to the pivot of the longitudinal rod and the middle support leg. Thus, the unfolded workbench can have a stable structure, and even if the outer support leg and the middle support leg are subjected to lateral force, the outer support leg and the middle support leg will not rotate relative to the longitudinal rod.

[0004] One objective of this invention is to provide a workbench and a support device, wherein the nuts of the locking components of the workbench are pre-installed, so that during the assembly of the workbench, the user only needs to install a small number of screws, which helps to reduce the assembly difficulty of the workbench and save assembly time. According to one aspect of the present invention, a workbench is provided, comprising: Two plate assemblies, wherein the plate assembly includes a plate body, a transverse rod and two longitudinal rods, the transverse rod is disposed at the bottom of the plate body at the inner end of the plate body, the two longitudinal rods are disposed at the bottom of the plate body on opposite sides of the plate body, and the opposite ends of the transverse rod are respectively installed at the inner ends of the two longitudinal rods; Two outer support legs, wherein the tops of the opposite sides of the outer support legs are rotatably mounted to the outer ends of the two longitudinal rods, and after the outer support legs are rotated to be perpendicular to the longitudinal rods, the top of the outer support legs and the outer ends of the longitudinal rods have at least one first locking position, the first locking position being adjacent to the pivot of the longitudinal rods and the outer support legs; and A central support leg, wherein the top of the central support leg is rotatably mounted on the inner ends of the two longitudinal rods on opposite sides, and after the central support leg is rotated to be perpendicular to the longitudinal rods, the top of the central support leg and the inner ends of the longitudinal rods have at least one second locking position, the second locking position being adjacent to the pivot of the longitudinal rods and the central support leg.

[0005] According to one embodiment of the present invention, the top of the outer support leg and the outer end of the longitudinal rod have two first locking positions, and the two first locking positions are arranged in a triangle with the axis of rotation of the longitudinal rod and the outer support leg.

[0006] According to one embodiment of the present invention, the workbench includes two connecting plates. In one second locking position, the connecting plate, the inner end of the longitudinal rod, and the top of the middle support leg are locked. In another second locking position, the connecting plate and the inner end of the longitudinal rod are locked.

[0007] According to one embodiment of the present invention, the end of the transverse rod is locked to the top of the middle support leg.

[0008] According to one embodiment of the present invention, the workbench includes multiple locking components, each including a nut and a screw. Two nuts are respectively provided on each side of the top of the outer support leg. The outer end of the longitudinal rod has two first through holes. After the outer support leg is rotated to be perpendicular to the longitudinal rod, the first through holes of the longitudinal rod correspond to the screw holes of the nuts. The threaded end of the screw extends to the screw hole of the nut after passing through the first through hole of the longitudinal rod, and the threaded end of the screw and the nut are screwed together so that the locking components lock the outer end of the longitudinal rod and the top of the outer support leg in the first locking position.

[0009] According to one embodiment of the present invention, the workbench includes multiple locking components, each including a nut and a screw. Two nuts are respectively provided on the inner side of the top of the middle support leg. The inner end of the longitudinal rod has a second through hole. The connecting plate has two third through holes. After the middle support leg is rotated to be perpendicular to the longitudinal rod, the third through hole of the connecting plate, the second through hole of the longitudinal rod, and the screw hole of the nut correspond. The threaded end of the screw extends to the screw hole of the nut after passing through the third through hole of the connecting plate and the second through hole of the longitudinal rod. The threaded end of the screw and the nut are screwed together so that the locking components lock the connecting plate, the inner end of the longitudinal rod, and the top of the middle support leg in the second locking position.

[0010] According to one embodiment of the present invention, the workbench includes multiple locking components, each locking component including a nut and a screw. The nut is disposed at the inner end of the longitudinal rod. The connecting plate has two fourth through holes, the fourth through holes of the connecting plate corresponding to the screw holes of the nut. The threaded end of the screw extends to the screw hole of the nut after passing through the fourth through hole of the connecting plate, and the threaded end of the screw and the nut are screwed together so that the locking components lock the connecting plate and the inner end of the longitudinal rod in the second locking position.

[0011] According to one embodiment of the present invention, the end of the transverse rod and the inner end of the longitudinal rod are mounted by the nut.

[0012] According to one embodiment of the present invention, the workbench includes a plurality of locking components, each locking component including a nut and a screw. The nut is disposed on the top of the middle support leg. Each of the opposite ends of the transverse rod has a fifth through hole. The threaded end of the screw extends to the threaded hole of the nut after passing through the fifth through hole of the transverse rod. The threaded end of the screw and the nut are screwed together to lock the end of the transverse rod and the top of the middle support leg by the locking components.

[0013] According to one embodiment of the present invention, the workbench includes a set of wheels, and the bottom of the outer support leg and the bottom of the middle support leg are respectively equipped with the wheels.

[0014] According to another aspect of the present invention, the present invention further provides a support device, which includes: One central support leg; Two outer supporting legs; Two transverse bars; and Four longitudinal rods, wherein the inner ends of two of the longitudinal rods are rotatably mounted to the left sides of opposite sides of the central support leg, and the outer ends are rotatably mounted to opposite sides of one of the outer support legs. One transverse rod has its opposite ends mounted to the inner ends of the two longitudinal rods. The inner ends of the other two longitudinal rods are rotatably mounted to the right sides of opposite sides of the central support leg, and the outer ends are rotatably mounted to opposite sides of another outer support leg. The other transverse rod has its opposite ends rotatably mounted to... The inner ends of the two longitudinal rods, wherein after the outer support leg is rotated to be perpendicular to the longitudinal rod, the top of the outer support leg and the outer end of the longitudinal rod have at least one first locking position, the first locking position being adjacent to the pivot of the longitudinal rod and the outer support leg; and after the middle support leg is rotated to be perpendicular to the longitudinal rod, the top of the middle support leg and the inner end of the longitudinal rod have at least one second locking position, the second locking position being adjacent to the pivot of the longitudinal rod and the middle support leg.

[0015] According to one embodiment of the present invention, the top of the outer support leg and the outer end of the longitudinal rod have two first locking positions, and the two first locking positions are arranged in a triangle with the axis of rotation of the longitudinal rod and the outer support leg.

[0016] According to one embodiment of the present invention, the workbench includes two connecting plates. In one second locking position, the connecting plate, the inner end of the longitudinal rod, and the top of the middle support leg are locked. In another second locking position, the connecting plate and the inner end of the longitudinal rod are locked.

[0017] According to one embodiment of the present invention, the end of the transverse rod is locked to the top of the middle support leg.

[0018] According to another aspect of the present invention, the present invention further provides a workbench, comprising: One-piece body; Two longitudinal bars, wherein the two longitudinal bars are symmetrically arranged on opposite sides of the bottom of the plate; and Two outer support legs, wherein the top of the outer support legs is rotatably mounted on opposite sides of the two longitudinal rods respectively, and after the outer support legs are rotated to be perpendicular to the longitudinal rods, the top of the outer support legs and the end of the longitudinal rods have at least one locking position.

[0019] According to one embodiment of the present invention, the top of the outer support leg and the end of the longitudinal rod have two locking positions, and the two locking positions are arranged in a triangle with the pivot of the top of the outer support leg and the end of the longitudinal rod.

[0020] According to one embodiment of the present invention, the workbench includes a plurality of locking components, each locking component including a nut and a screw. The nut is disposed on the top of the outer support leg. The end of the longitudinal rod has a through hole. The threaded end of the screw extends through the through hole of the longitudinal rod to the threaded hole of the nut. The threaded end of the screw and the nut are screwed together to lock the end of the longitudinal rod and the top of the outer support leg by the locking components. Attached Figure Description

[0021] Figure 1 This is a perspective view of a workbench after it has been unfolded, according to a preferred embodiment of the present invention.

[0022] Figure 2 This is a perspective view of the workbench according to the above-described preferred embodiment of the present invention after it has been unfolded.

[0023] Figure 3 This is an exploded view of the worktable according to the above-described preferred embodiment of the present invention after it has been unfolded.

[0024] Figure 4 yes Figure 3 A magnified view of the first position.

[0025] Figure 5 yes Figure 3 A magnified view of the second position.

[0026] Figure 6 yes Figure 3 A magnified view of the third position.

[0027] Figure 7 This is an exploded view of the worktable according to the above-described preferred embodiment of the present invention after it has been unfolded.

[0028] Figure 8 This is a cross-sectional view of a partial position of the worktable according to the above-described preferred embodiment of the present invention after it has been unfolded.

[0029] Figure 9 This is a perspective view of one of the unfolding processes of the workbench according to the above-described preferred embodiment of the present invention.

[0030] Figure 10This is a perspective view of the second unfolding process of the workbench according to the above-described preferred embodiment of the present utility model.

[0031] Figure 11 This is a three-dimensional schematic diagram of the unfolding process of the workbench according to the above-described preferred embodiment of the present utility model.

[0032] Figure 12 This is a perspective view of the fourth stage of the unfolding process of the workbench according to the above-described preferred embodiment of the present utility model.

[0033] Figure 13 This is a three-dimensional schematic diagram of the fifth step in the unfolding process of the workbench according to the above-described preferred embodiment of the present utility model.

[0034] Figure 14 This is a perspective view of the unfolding process of the workbench according to the above-described preferred embodiment of the present utility model.

[0035] Figure 15 This is a perspective view of the seventh step of the unfolding process of the workbench according to the above-described preferred embodiment of the present utility model.

[0036] Figure 16 This is a perspective view of the unfolding process of the workbench according to the above-described preferred embodiment of the present invention.

[0037] Figure 17 This is a perspective view of a workbench after it has been unfolded, according to another preferred embodiment of the present invention.

[0038] Figure 18 This is a perspective view of the workbench according to the above-described preferred embodiment of the present invention after it has been unfolded.

[0039] Figure 19 This is an exploded view of the worktable according to the above-described preferred embodiment of the present invention after it has been unfolded.

[0040] Figure 20 This is an exploded view of the worktable according to the above-described preferred embodiment of the present invention after it has been unfolded.

[0041] Figure 21 This is a perspective view of one of the unfolding processes of the workbench according to the above-described preferred embodiment of the present invention.

[0042] Figure 22 This is a perspective view of the second unfolding process of the workbench according to the above-described preferred embodiment of the present utility model.

[0043] Figure 23This is a three-dimensional schematic diagram of the unfolding process of the workbench according to the above-described preferred embodiment of the present utility model.

[0044] Figure 24 This is a perspective view of the fourth stage of the unfolding process of the workbench according to the above-described preferred embodiment of the present utility model.

[0045] Figure 25 This is a three-dimensional schematic diagram of the fifth step in the unfolding process of the workbench according to the above-described preferred embodiment of the present utility model.

[0046] Figure 26 This is a perspective view of the unfolding process of the workbench according to the above-described preferred embodiment of the present utility model. Detailed Implementation

[0047] Before describing any embodiment of this invention in detail, it should be understood that the invention is not limited in its application to the details of the construction and arrangement of the components set forth in the following description or illustrated in the following figures. The invention is capable of other embodiments and can be practiced or carried out in various ways. Furthermore, it should be understood that the wording and terminology used herein are for descriptive purposes and should not be considered limiting. The use of “comprising” or “having” and variations thereof herein is intended to cover the items set forth below and their equivalents, as well as any additional items. Unless otherwise specified or limited, the terms “installation,” “connection,” “support,” and “linkage,” and variations thereof are used broadly and cover both direct and indirect installation, connection, support, and linking. Moreover, “connection” and “linkage” are not limited to physical or mechanical connections or links.

[0048] Furthermore, firstly, in the disclosure of this utility model, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as a limitation on this utility model. Secondly, the term "a" should be understood as "at least one" or "one or more," that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple. The term "a" should not be construed as a limitation on the quantity.

[0049] Refer to the accompanying drawings of the specification of this utility model. Figures 1 to 16A preferred embodiment of the present invention will be disclosed and described in the following description, wherein the workbench includes two tabletop assemblies 10, two outer support legs 20 and a central support leg 30. The central support leg 30 is configured to connect the inner ends of the two tabletop assemblies 10 and support the two tabletop assemblies 10 at their inner ends. The two outer support legs 20 are configured to support the two tabletop assemblies 10 at their outer ends, respectively. Thus, the two outer support legs 20 and the central support leg 30 can support the two tabletop assemblies 10 to a preset height.

[0050] Each of the tabletop assemblies 10 includes a plate 11, a transverse rod 12, and two longitudinal rods 13. The two longitudinal rods 13 are symmetrically arranged. The opposite ends of the transverse rod 12 are respectively installed at the inner ends of the two longitudinal rods 13. The transverse rod 12 and the two longitudinal rods 13 are respectively installed at the bottom of the plate 11. For example, screws can be used to install the transverse rod 12 and the two longitudinal rods 13 at the bottom of the plate 11. After the transverse rod 12 and the two longitudinal rods 13 are installed at the bottom of the plate 11, the transverse rod 12 is located at the inner end of the plate 11, and the two longitudinal rods 13 are respectively located on opposite sides of the plate 11. It should be noted that the extension direction of the transverse rod 12 is consistent with the width direction of the worktable, and the extension direction of the longitudinal rods 13 is consistent with the length direction of the worktable.

[0051] The top of one of the outer support legs 20 is rotatably mounted on opposite sides to the outer ends of two longitudinal rods 13 of one of the platform assemblies 10, and the top of the other outer support leg 20 is rotatably mounted on the outer ends of two longitudinal rods 13 of another platform assembly 10. (See attached diagram) Figures 3 to 5 The workbench includes multiple bolt assemblies 70, each bolt assembly 70 including a threaded rod 71 and a nut 72. The outer end of the longitudinal rod 13 has a first rod through hole 130, and the top of the outer support leg 20 has a second rod through hole 201. The first end of the threaded rod 71 passes through the first rod through hole 130 of the longitudinal rod 13 and the second rod through hole 201 of the outer support leg 20, respectively, and is then screwed with the nut 72. Thus, the top of the outer support leg 20 can rotate relative to the longitudinal rod 13 around the threaded rod 71, thereby rotatably mounting the top of the outer support leg 20 to the longitudinal rod 13. In other words, the threaded rod 71 is the pivot of the longitudinal rod 13 and the outer support leg 20.

[0052] The top sides of the middle support leg 30 are rotatably mounted on the left sides of opposite sides of the top of one of the platform assemblies 10 to the inner ends of the two longitudinal rods 13. The top sides of the middle support leg 30 are rotatably mounted on the right sides of opposite sides of the top of the middle support leg 30 to the inner ends of the longitudinal rods 13 of the other platform assembly 10. Thus, the middle support leg 30 is configured to connect the two platform assemblies 10. It is worth noting that the mounting method of the top of the middle support leg 30 and the inner ends of the longitudinal rods 13 is the same as the mounting method of the top of the outer support leg 20 and the outer ends of the longitudinal rods 13. Therefore, the mounting method of the top of the middle support leg 30 and the inner ends of the longitudinal rods 13 in the worktable of this invention will not be described again.

[0053] In other words, one central support leg 30, two outer support legs 20, two transverse rods 12, and four longitudinal rods 13 form a support device. Specifically, this utility model further provides a support device comprising one central support leg 30, two outer support legs 20, two transverse rods 12, and four longitudinal rods 13. The inner ends of the two longitudinal rods 13 are rotatably mounted to the left of opposite sides of the central support leg 30, and their outer ends are rotatably mounted to opposite sides of one outer support leg 20. The opposite ends of one transverse rod 12 are respectively mounted to the inner ends of the two longitudinal rods 13. The inner ends of the other two longitudinal rods 13 are rotatably mounted to the right of opposite sides of the central support leg 30, and their outer ends... The outer support leg 20 is rotatably mounted on opposite sides of the other outer support leg 20, and the opposite ends of the other transverse rod 12 are rotatably mounted on the inner ends of the two longitudinal rods 13. After the outer support leg 20 is rotated to be perpendicular to the longitudinal rod 13, the top of the outer support leg 20 and the outer end of the longitudinal rod 13 have at least one first locking position, which is adjacent to the pivot of the longitudinal rod 13 and the outer support leg 20. After the middle support leg 30 is rotated to be perpendicular to the longitudinal rod 13, the top of the middle support leg 30 and the inner end of the longitudinal rod 13 have at least one second locking position, which is adjacent to the pivot of the longitudinal rod 13 and the middle support leg 20.

[0054] The workbench has a folded state and an unfolded state, and can switch between the folded state and the unfolded state. When the workbench is in the folded state, the two plates 11 are stacked, the four longitudinal rods 13, the two outer support legs 20, and the central support 30 are parallel to each other, and the four longitudinal rods 13, the two outer support legs 20, and the central support leg 30 are located between the two plates 11, so that the workbench has a smaller size and a more regular appearance, facilitating its storage and transportation. (See attached figure.) Figure 9 .

[0055] After the outer support leg 20 rotates to be perpendicular to the longitudinal rod 13, the top of the outer support leg 20 and the outer end of the longitudinal rod 13 have at least one first locking position, which is adjacent to the pivot of the longitudinal rod 13 and the outer support leg 20. After the middle support leg 30 rotates to be perpendicular to the longitudinal rod 13, the top of the middle support leg 30 and the inner end of the longitudinal rod 13 have at least one second locking position, which is adjacent to the pivot of the longitudinal rod 13 and the middle support leg 30. At this time, the worktable is switched to the unfolded state. The unfolded worktable can have a stable structure. Even if the outer support leg 20 and the middle support leg 30 are subjected to lateral force, the outer support leg 20 and the middle support leg 30 will not rotate relative to the longitudinal rod 13, thereby ensuring the reliability and stability of the worktable.

[0056] Preferably, both the outer support leg 20 and the middle support leg 30 are telescopic structures. After the outer support leg 20 is rotated to be perpendicular to the longitudinal rod 13 and both are locked, and after the middle support leg 30 is rotated to be perpendicular to the longitudinal rod 13 and both are locked, the height of the outer support leg 20 and the middle support leg 30 can be adjusted, thereby adjusting the height position of the two plates 11 supported.

[0057] It is worth mentioning that the specific manner in which the top of the outer support leg 20 is rotatably mounted to the outer end of the longitudinal rod 13 is not limited in the worktable of this utility model. For example, in the appendix Figures 1 to 16In this specific example of the workbench of the present invention shown, bolts can be used to mount the top of the outer support leg 20 and the outer end of the longitudinal rod 13, allowing the outer support leg 20 to rotate about the bolt relative to the longitudinal rod 13. Correspondingly, bolts can also be used to mount the top of the middle support leg 30 and the inner end of the longitudinal rod 13, allowing the middle support leg 30 to rotate about the bolt relative to the longitudinal rod 13.

[0058] Preferably, the top of the outer support leg 20 and the outer end of the longitudinal rod 13 have two first locking positions. The two first locking positions are arranged in a triangle with the axis of rotation of the longitudinal rod 13 and the outer support leg 20. In this way, the outer support leg 20 and the longitudinal rod 13 can be stably kept in a vertical state, further increasing the reliability and stability of the worktable.

[0059] Specifically, the workbench includes multiple locking components 30. After the outer support leg 20 rotates to be perpendicular to the longitudinal rod 13, these locking components 30 are used to lock the top of the outer support leg 20 and the outer end of the longitudinal rod 13. The position where the locking components 30 lock the top of the outer support leg 20 and the outer end of the longitudinal rod 13 is the first locking position. After the middle support leg 30 rotates to be perpendicular to the longitudinal rod 13, these locking components 30 are used to lock the top of the middle support leg 30 and the inner end of the longitudinal rod 13. The position where the locking components 30 lock the top of the middle support leg 30 and the inner end of the longitudinal rod 13 is the second locking position.

[0060] More specifically, see Appendix Figure 8 The locking assembly 40 includes a nut 41 and a screw 42. Two nuts 41 are respectively provided on each side of the top of the outer support leg 20. The outer end of the longitudinal rod 13 has two first through holes 131. After the outer support leg 20 is rotated to be perpendicular to the longitudinal rod 13, the positions of the first through holes 131 of the longitudinal rod 13 correspond to the positions of the screw holes of the nuts 41. The threaded ends of the screws 42 extend to the screw holes of the nuts 41 after passing through the first through holes 131 of the longitudinal rod 13, and are screwed into the nuts 41. In this way, the locking assembly 40 locks the top of the outer support leg 20 and the outer end of the longitudinal rod 13.

[0061] It is worth mentioning that the specific manner in which the nut 41 is positioned on the top of the outer support leg 20 is not limited in the worktable of this utility model. For example, in the appendix Figures 1 to 16 In this specific example of the workbench of the present invention shown, the nut 41 is a rivet nut. After the nut 41's nut cap passes through the rivet hole at the top of the outer support leg 20, the nut cap of the nut 41 is deformed using a nut gun to fix the nut 41 to the top of the outer support leg 20.

[0062] The workbench further includes two connecting plates 50. On each side of the workbench, when the central support leg 30 is rotated to be perpendicular to the longitudinal rod 13, the connecting plate 50 is used to connect one side of the top of the central support leg 30 to the inner ends of the two longitudinal rods 13 located on opposite sides of the central support leg 30, so that the central support leg 30 and the two table assemblies 10 can have a stable connection relationship.

[0063] Preferably, in one of the second locking positions, the connecting plate 50, the inner end of the longitudinal rod 13, and the top of the central support leg 30 are locked, and in another of the second locking positions, the connecting plate 50 and the longitudinal rod 13 are locked. Thus, the two second locking positions are arranged in a triangle with the pivot of the top of the central support leg 30 and the inner end of the longitudinal rod 13 to further increase the stability of the worktable.

[0064] Specifically, two nuts 41 are respectively provided on the inner side of the top of the middle support leg 30. The installation method of the nuts 41 and the middle support leg 30 is the same as the installation method of the nuts 41 and the outer support leg 20. The installation method of the middle support leg 30 and the nuts 41 will not be described again in this utility model. The inner end of the longitudinal rod 13 has a second through hole 132, and the connecting plate 50 has two third through holes 51. After the middle support leg 30 is rotated to be perpendicular to the longitudinal rod 13, the third through hole 51 of the connecting plate 50, the second through hole 132 of the longitudinal rod 13 and the screw hole of the nut 41 correspond. The threaded end of the screw 42 extends to the screw hole of the nut 41 after passing through the third through hole 51 of the connecting plate 50 and the second through hole 132 of the longitudinal rod 13, and is screwed into the nut 41. In this way, the locking assembly 40 locks the connecting plate 50, the inner end of the longitudinal rod 13 and the top of the middle support leg 30 in a second locking position.

[0065] Furthermore, the inner end of the longitudinal rod 13 is provided with a nut 41. The installation method of the nut 41 and the longitudinal rod 13 is the same as the installation method of the nut 41 and the outer support leg 20. The installation method of the longitudinal rod 13 and the nut 41 will not be described again in this utility model. The connecting plate 50 has two fourth through holes 52. After the connecting plate 50 is stacked on the longitudinal rod 13, the fourth through holes 52 of the connecting plate 50 correspond to the screw holes of the nut 41 on the longitudinal rod 13. The threaded end of the screw 42 extends to the screw hole of the nut 41 after passing through the fourth through holes 52 of the connecting plate 50, and is screwed onto the nut 41. Thus, the locking assembly 40 locks the connecting plate 50 and the longitudinal rod 13 at another second locking position. Preferably, the connecting plate 50 has two clearance holes 53 for avoiding the top of the middle support leg 30 and the pivot of the inner end of the longitudinal rod 13.

[0066] Preferably, the nut 41 provided on the longitudinal rod 13 is further used to install the end of the transverse rod 12 and the inner end of the longitudinal rod 13, so as to simplify the specific structure of the workbench.

[0067] In the workbench of this utility model, when the middle support leg 30 is rotated to be perpendicular to the longitudinal rod 13, the end of the transverse rod 12 is locked to the top of the middle support leg 30 to further strengthen the structure of the workbench, stabilize the workbench, and ensure that the inner ends of the two plates 11 are tightly fitted to avoid gaps between the two plates 11.

[0068] Specifically, each of the two opposite ends of the transverse rod 12 has a fifth through hole 121. After the middle support leg 30 is rotated to be perpendicular to the longitudinal rod 13, the fifth through hole 121 of the transverse rod 12 corresponds to the screw hole of the nut 41 located at the top of the middle support leg 30. The threaded end of the screw 42 extends to the screw hole of the nut 41 after passing through the fifth through hole 121 of the transverse rod 12, and is screwed into the nut 41 so that the end of the transverse rod 12 and the top of the middle support leg 30 are locked by the locking assembly 40.

[0069] Reference Appendix Figure 1 and Figure 2 The workbench further includes a set of wheels 60. The bottom of the outer support leg 20 and the bottom of the middle support leg 30 are respectively equipped with the wheels 60. When the workbench is pushed or pulled, the wheels 60 can roll on the ground to facilitate the movement of the workbench.

[0070] Appendix Figures 9 to 13 The unfolding process of the workbench of this utility model, as shown, specifically includes the following steps: First, flip the two table plate assemblies 10 so that the plates 11 of the two table plate assemblies 10 are side by side, at which time the middle support leg 30 and the longitudinal rods 13 of the two table plate assemblies 10 are perpendicular; Second, rotate the outer support leg 20, and after the outer support leg 20 is rotated to be perpendicular to the longitudinal rod 13, pass the threaded end of the screw 42 through the first through hole 131 of the longitudinal rod 13 and extend it to be screwed into the nut 41 to lock the top of the outer support leg 20 and the outer end of the longitudinal rod 13; Third, stack the connecting plate 50 on top of the middle support leg 30 and the two plates 11. The inner end of the longitudinal rod 13 of the table assembly 10 is connected by passing the threaded end of a screw 42 through the third through hole 51 of the connecting rod 50 and the second through hole 132 of the longitudinal rod 13, and then screwing it into the nut 41 to lock the connecting plate 50, the inner end of the longitudinal rod 13, and the top of the middle support leg 30. The threaded end of another screw 42 is then passed through the fourth through hole 52 of the connecting plate 50 and then screwed into the nut 41 to lock the inner end of the longitudinal rod 13 and the connecting plate 50. Next, the threaded end of the screw 42 is passed through the fifth through hole 121 of the transverse rod 12 and then screwed into the nut 41, thus completing the assembly of the workbench. It is understood that since these nuts 41 are pre-installed on the top of the outer support leg 20, the top of the middle support leg 30, and the inner end of the longitudinal rod 13, the user only needs to install a small number of screws 42 during the assembly of the workbench, which helps to reduce the assembly difficulty of the workbench and save assembly time. Appendix Figures 17 to 26 Another specific example of the worktable of this utility model is shown, in conjunction with the appendix. Figures 1 to 16 The workbench shown differs from the one described above in that it has an attached... Figures 17 to 26 In this specific example of the workbench shown, the workbench includes a plate 11, two longitudinal rods 13, and two outer support legs 20, wherein the two longitudinal rods 13 are symmetrically arranged on opposite sides of the bottom of the plate 11, and the tops of the opposite sides of the outer support legs 20 are rotatably mounted to the ends of the two longitudinal rods 13, wherein after the outer support legs 20 are rotated to be perpendicular to the longitudinal rods 13, the tops of the outer support legs 20 and the ends of the longitudinal rods 13 have at least one locked position.

[0071] It is worth mentioning that, attached Figures 17 to 26The mounting method of the end of the longitudinal rod 13 and the top of the outer support leg 20 of the workbench shown is the same as that of the attached... Figures 1 to 16 The outer end of the longitudinal rod 13 and the top of the outer support leg 20 of the workbench shown are installed in the same way. This utility model relates to the attached... Figures 17 to 26 The mounting method of the end of the longitudinal rod 13 and the top of the outer support leg 20 of the workbench shown will not be described again.

[0072] Preferably, the top of the outer support leg 20 and the end of the longitudinal rod 13 have two locking positions, which are arranged in a triangle with the pivot of the top of the outer support leg 20 and the end of the longitudinal rod 13 to ensure the stability of the worktable after unfolding.

[0073] Specifically, the workbench includes a plurality of locking components 40, each locking component 40 including a nut 41 and a screw 42. The nut 41 is disposed on the top of the outer support leg 20. The end of the longitudinal rod 13 has a through hole 133. The threaded end of the screw 42 extends through the through hole 133 of the longitudinal rod 13 to the threaded hole of the nut 41. The threaded end of the screw 42 and the nut 41 are screwed together to lock the end of the longitudinal rod 13 and the top of the outer support leg 20 by the locking components 40.

[0074] Appendix Figures 21 to 26 The unfolding process of the workbench of this utility model, as shown, specifically includes the following steps: First, rotate one of the outer support legs 20. After the outer support leg 20 is rotated to be perpendicular to the longitudinal rod 13, pass the threaded end of the screw 42 through the through hole 133 of the longitudinal rod 13 and extend it to be screwed into the nut 41 to lock the top of the outer support leg 20 and the outer end of the longitudinal rod 13. Second, rotate the other outer support leg 20. After the outer support leg 20 is rotated to be perpendicular to the longitudinal rod 13, pass the threaded end of the screw 42 through the through hole 133 of the longitudinal rod 13 and extend it to be screwed into the nut 41 to lock the top of the outer support leg 20 and the outer end of the longitudinal rod 13. Thus, the assembly of the workbench is completed.

[0075] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been shown and explained in the embodiments, and any modifications or variations of the implementation of the present invention may be made without departing from the stated principles.

Claims

1. A workbench, characterized in that, include: Two plate assemblies, wherein the plate assembly includes a plate body, a transverse rod and two longitudinal rods, the transverse rod is disposed at the bottom of the plate body at the inner end of the plate body, the two longitudinal rods are disposed at the bottom of the plate body on opposite sides of the plate body, and the opposite ends of the transverse rod are respectively installed at the inner ends of the two longitudinal rods; Two outer support legs, wherein the tops of the opposite sides of the outer support legs are rotatably mounted to the outer ends of the two longitudinal rods, and after the outer support legs are rotated to be perpendicular to the longitudinal rods, the top of the outer support legs and the outer ends of the longitudinal rods have at least one first locking position, the first locking position being adjacent to the pivot of the longitudinal rods and the outer support legs; and A central support leg, wherein the top of the central support leg is rotatably mounted on the inner ends of the two longitudinal rods on opposite sides, and after the central support leg is rotated to be perpendicular to the longitudinal rods, the top of the central support leg and the inner ends of the longitudinal rods have at least one second locking position, the second locking position being adjacent to the pivot of the longitudinal rods and the central support leg.

2. The workbench according to claim 1, wherein the top of the outer support leg and the outer end of the longitudinal rod have two first locking positions, the two first locking positions being arranged in a triangle with the axis of rotation of the longitudinal rod and the outer support leg.

3. The workbench according to claim 1, wherein the workbench comprises two connecting plates, in one second locking position, the connecting plate, the inner end of the longitudinal rod and the top of the middle support leg are locked, and in another second locking position, the connecting plate and the inner end of the longitudinal rod are locked.

4. The workbench according to claim 3, wherein the end of the transverse rod is locked to the top of the central support leg.

5. The workbench according to claim 2, wherein the workbench includes a plurality of locking components, each locking component including a nut and a screw, two nuts are respectively provided on each side of the top of the outer support leg, the outer end of the longitudinal rod has two first through holes, after the outer support leg is rotated to be perpendicular to the longitudinal rod, the first through holes of the longitudinal rod correspond to the screw holes of the nuts, the threaded end of the screw extends to the screw hole of the nut after passing through the first through hole of the longitudinal rod, and the threaded end of the screw and the nut are screwed together to lock the outer end of the longitudinal rod and the top of the outer support leg by the locking components in the first locking position.

6. The workbench according to claim 3, wherein the workbench includes a plurality of locking components, each locking component including a nut and a screw, two nuts are respectively provided on the inner side of the top of the middle support leg, the inner end of the longitudinal rod has a second through hole, the connecting plate has two third through holes, after the middle support leg is rotated to be perpendicular to the longitudinal rod, the third through hole of the connecting plate, the second through hole of the longitudinal rod and the screw hole of the nut correspond, the threaded end of the screw extends to the screw hole of the nut after passing through the third through hole of the connecting plate and the second through hole of the longitudinal rod, and the threaded end of the screw and the nut are screwed together so that the locking components lock the connecting plate, the inner end of the longitudinal rod and the top of the middle support leg in the second locking position.

7. The workbench according to claim 3, wherein the workbench includes a plurality of locking components, each locking component including a nut and a screw, the nut being disposed at the inner end of the longitudinal rod, the connecting plate having two fourth through holes corresponding to the screw holes of the nut, the threaded end of the screw extending to the screw hole of the nut after passing through the fourth through hole of the connecting plate, and the threaded end of the screw and the nut being screwed together to lock the connecting plate and the inner end of the longitudinal rod in the second locking position by the locking components.

8. The workbench according to claim 7, wherein the end of the transverse rod and the inner end of the longitudinal rod are mounted by the nut.

9. The workbench of claim 4, wherein the workbench includes a plurality of locking components, each locking component including a nut and a screw, the nut being disposed on the top of the central support leg, each of the opposite ends of the transverse rod having a fifth through hole, the threaded end of the screw extending through the fifth through hole of the transverse rod to the threaded hole of the nut, and the threaded end of the screw and the nut being screwed together to lock the end of the transverse rod and the top of the central support leg by the locking components.

10. The workbench according to any one of claims 1 to 9, wherein the workbench includes a set of wheels, and the wheels are respectively mounted on the bottom of the outer support leg and the bottom of the middle support leg.

11. A support device, characterized in that, include: One central support leg; Two outer supporting legs; Two transverse bars; and Four longitudinal rods, wherein the inner ends of two of the longitudinal rods are rotatably mounted to the left sides of opposite sides of the central support leg, and the outer ends are rotatably mounted to opposite sides of one of the outer support legs. One transverse rod has its opposite ends mounted to the inner ends of the two longitudinal rods. The inner ends of the other two longitudinal rods are rotatably mounted to the right sides of opposite sides of the central support leg, and the outer ends are rotatably mounted to opposite sides of another outer support leg. The other transverse rod has its opposite ends rotatably mounted to... The inner ends of the two longitudinal rods, wherein after the outer support leg is rotated to be perpendicular to the longitudinal rod, the top of the outer support leg and the outer end of the longitudinal rod have at least one first locking position, the first locking position being adjacent to the pivot of the longitudinal rod and the outer support leg; and after the middle support leg is rotated to be perpendicular to the longitudinal rod, the top of the middle support leg and the inner end of the longitudinal rod have at least one second locking position, the second locking position being adjacent to the pivot of the longitudinal rod and the middle support leg.

12. The support device according to claim 11, wherein the top of the outer support leg and the outer end of the longitudinal rod have two first locking positions, the two first locking positions being arranged in a triangle with the axis of rotation of the longitudinal rod and the outer support leg.

13. A workbench, characterized in that, include: One-piece body; Two longitudinal bars, wherein the two longitudinal bars are symmetrically arranged on opposite sides of the bottom of the plate; and Two outer support legs, wherein the top of the outer support legs is rotatably mounted on opposite sides of the two longitudinal rods respectively, and after the outer support legs are rotated to be perpendicular to the longitudinal rods, the top of the outer support legs and the end of the longitudinal rods have at least one locking position.

14. The workbench of claim 13, wherein the top of the outer support leg and the end of the longitudinal rod have two locking positions, the two locking positions being arranged in a triangle with the pivot of the top of the outer support leg and the end of the longitudinal rod.

15. The workbench of claim 14, wherein the workbench includes a plurality of locking components, each locking component including a nut and a screw, the nut being disposed on the top of the outer support leg, the end of the longitudinal rod having a through hole, the threaded end of the screw extending through the through hole of the longitudinal rod to the threaded hole of the nut, and the threaded end of the screw and the nut being screwed together to lock the end of the longitudinal rod and the top of the outer support leg by the locking components.

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