WO2009049451A1

WO2009049451A1 - A joint subassembly of folding cabinet

Info

Publication number: WO2009049451A1
Application number: PCT/CN2007/003334
Authority: WO
Inventors: Liang I Tsai
Original assignee: Century Wealth Commercial (Shanghai) Co., Ltd.
Priority date: 2007-10-18
Filing date: 2007-11-26
Publication date: 2009-04-23
Also published as: CN101412461A; CN101412461B

Abstract

A joint subassembly of folding cabinet, which comprises upper and lower joint components (1,2); rotating axis (3) for connecting upper and lower joint components; upper and lower joint components rotate about the axis of the rotating axis; some bolts (4) which are set detachable between upper and lower joint components, the bolts can make extending orientation between upper and lower joint components and share tightly connecting fixation with them. When the joint subassembly extending completely, the bolts share tightly connecting fixation with upper and lower joint components to make the folding cabinet have enough strength and rigidity when loading cargo and bear pull when cabinet hoisting to protect the rotating axis of joint subassembly.

Description

Joint assembly of folding cabinet

The invention relates to a joint assembly of a folding cabinet, which is applied to a foldable container, so that the container can be folded and folded when the goods are not loaded, so as to minimize the volume, thereby saving stacking space and Easy to transport, which significantly reduces storage and transportation costs. Background technique

Generally, the traditional container adopts a fixed structure and has a large normalized space to load a large amount of cargo. The common type of container for general cargo transportation is a dry container, and its specifications mainly include 20 cabinets and 40 inches. Cabinets, etc. Only when the container is unloaded and used, it is often stored in the container storage or general space, and the large volume of the empty container causes great waste in storage, and when the container is stored, it is often necessary to stack the container with a spreader. In order to achieve space utilization; since the height of each container is 2.591 meters, the stacking height of several layers of containers is considerable, so that stacking is very troublesome and potentially dangerous. In addition, empty cabinets In the case of transshipment and movement, it is limited by the fixed volume of the empty container. The transportation efficiency of the specific shipping method (such as the container connecting vehicle) is low, and only a certain number of empty cabinets can be transported in a limited manner, resulting in huge transportation costs.

A special U-shaped container used by people in the transportation industry for loading ultra-high and heavy goods, such as the hinge for folding container racks disclosed in Chinese Patent Publication No. CN1625516A, refers to such a A special U-shaped container. It is an open container consisting of only one underframe and two end plates (i.e., having only three sides), and the two end plates are joined to the chassis at the bottom edge thereof by means of a rotating shaft. When the special U-shaped container is used, the bottom edges of the two end plates are vertically fixed to the two ends of the bottom frame; and when the empty cabinet is stored, the two end plates can be inverted to the bottom frame to make the special U-shaped container into a flat plate to reduce The volume occupied by the empty cabinet. The simple dumping and folding structure of only special U-shaped open containers cannot meet the purpose of closed dry containers. That is to say, the folding structure of the special U-shaped open container can not be applied to the closed-type dry-type dry container, so that the dry containers still used by the transport industry still cannot achieve the space-saving folding effect of effective stacking.

Seeing this, reducing the volume of traditional containers in empty cabinets to reduce storage and transportation costs is an important issue that needs to be improved in the current container design.

To this end, the above-mentioned technical problem is solved by the folding container disclosed in Chinese Patent Publication No. CN2761544Y. The structure of the folding container includes a chassis, a top plate opposite to the chassis, two opposite side plates, a front frame and a Forming a rectangular body together with the rear frame of the front frame; the front frame and the rear frame are respectively pivotally connected to a front end and a rear end of the chassis, Each of the side plates has an upper side plate and an lower side plate, wherein an upper end of the upper side plate is pivotally connected to one side of the top plate, and the lower side plate is pivotally connected to one side of the bottom frame The lower end of the upper side plate is pivotally connected to an upper end of the lower side plate; the container structure further includes a fixing device disposed in an inner portion of the rectangular body so that the front frame and the rear frame do not follow the chassis Rotate, and the upper side plate and the lower side plate are not rotated relative to each other.

The step of folding the container is to hook the front frame and the rear frame with the spreader frame. The operator opens the fixing components of the front frame and the rear frame respectively, and slowly dumps the front frame and the rear frame on the inner frame of the container; With the ceiling suspended, the operator opens the securing components on the inside of the container to allow the container frame to fold slowly. The fixed lock is used to fix the corners of the top and bottom corners of the chassis, so that the container is fixed in the folded state, which is convenient for handling and storage. The upper and lower containers of the folding state are also arranged in a space between the container corners of the upper and lower containers to facilitate stacking. Folding containers after folding account for about 20% of the original height, so you can save a considerable amount of space.

However, due to the rotating shaft used in the front and rear frames of the above-mentioned folding container, that is, there is no locking device on the joint, but only the fixing device installed in other places in the container is fixed, which will affect the strength and rigidity of the joint portion. In addition, there is no seal at the shaft, and rainwater and seawater easily penetrate into the container, causing damage to the cargo in the container. There is also a long time for the rotating parts of the rotating shaft to be easily damaged, and it is troublesome to replace. Summary of the invention

The technical problem to be solved by the present invention is to provide a joint assembly of a folding cabinet. When the joint assembly is fully extended, the upper and lower joints of the joint assembly are fixed by a hexagonal screw, so that the folding cabinet has sufficient load when loading the cargo. Strength and stiffness, and withstand the tension of the container when lifting, to protect the shaft in the joint assembly.

In order to solve the above technical problem, the present invention can be implemented by the following technical solutions:

A joint assembly of a folding cabinet, comprising:

Upper and lower joint parts,

Actively connecting the rotating shafts of the upper and lower joint members, the upper and lower joint members are rotatable about the axis of the rotating shaft; a detachable bolt fastening device installed between the upper and lower joint members, the bolt fastening The piece can be positioned and fixedly connected between the upper and lower joint members.

In the present invention, the upper and lower joint members may be connected by a hinge joint, wherein the upper and lower joint members and the hinge joint are movably connected by a rotating shaft, and the detachable bolt fasteners will be up and down. The joint member is tightly connected to the hinge.

The bolt fastener used in the present invention is a hexagon socket bolt, so that the bolt head can be sunk into the upper and lower joint members or the hinge seat. A sealing strip is provided between the upper and lower joint members or between the upper and lower joint members and the hinge seat to prevent water from penetrating into the cabinet from between the upper and lower joint members and between the upper and lower joint members and the hinge seat. .

Forming a U-shaped sealing strip groove on the upper or lower joint member, the sealing strip is embedded in the sealing strip groove, and is provided on the lower or upper joint member or the hinge seat for pressing The ribs of the sealing strip are tight.

In order to prevent the circumferential rotation and the axial movement of the rotating shaft, a set screw is arranged on the upper or lower joint member or the hinge, the set screw is pressed against the rotating shaft, and the adjusting screw is fixed on the rotating shaft The receiving portion is provided with a ring groove, which can limit the axial movement of the rotating shaft.

In order to reduce the noise emitted during the folding of the upper and lower joint members, a nylon sleeve is sleeved on the shaft.

In order to reduce the maintenance cost, a screw sleeve for screwing the bolt fastener is embedded in the upper and lower joint members. When the thread inside the screw sleeve is damaged, replace it with a new one.

Considering that the folding cabinet is generally stretched for a long time, a strong suction force is generated between the upper and lower joint members and between the upper and lower joint members and other parts, so that when the folding cabinet is folded, it will be more To the extent that the present invention has more than one jacking screw on the upper or lower joint member or hinge, the needle end of the jacking screw is placed on the lower or upper joint member. Thus, before folding, the jacking screw is rotated inwardly to loosen the upper and lower joint members or between the hinge seat and the upper and lower joint members, so that the folding is more labor-saving.

The joint assembly of the above folding cabinet can be used for folding containers, has the advantages of flexible stretching, locking by the hexagon socket bolts after extension, bearing the pulling force when the container is hoisted, and protecting the rotating shaft of the joint assembly. After the hexagon socket head bolts are removed, the container can be folded slowly and folded, which is conducive to handling and storage.

The features of the present invention can be clearly understood from the description of the drawings and the detailed description of the preferred embodiments. DRAWINGS

1 is a schematic structural view of an upper joint assembly of a folding cabinet of the present invention.

Figure 2 is a cross-sectional view taken along line A-A of Figure 1.

Figure 3 is a cross-sectional view taken along line B-B of Figure 1.

Figure 4 is a schematic view showing the structure of the upper joint member in the upper joint assembly of the folding cabinet of the present invention.

Figure 5 is a left side view of Figure 4.

Figure 6 is a schematic view showing the structure of the lower joint member in the upper joint assembly of the folding cabinet of the present invention.

Figure 7 is a left side view of Figure 6.

Figure 8 is a schematic view showing the state of the upper joint assembly of the folding cabinet of the present invention when it is turned over. Figure 9 is a schematic view showing the structure of the middle joint assembly of the folding cabinet of the present invention.

Figure 10 is a cross-sectional view taken along line A - A of Figure 9;

Figure 11 is a cross-sectional view taken along line B-B of Figure 9.

Figure 12 is a schematic view showing the structure of the upper joint member in the middle joint assembly of the folding cabinet of the present invention.

Figure 13 is a left side view of Figure 12.

Figure 14 is a schematic view showing the structure of the lower joint member in the middle joint assembly of the folding cabinet of the present invention.

Figure 15 is a left side view of Figure 14.

Figure 16 is a schematic view showing the structure of a hinge in the middle joint assembly of the folding cabinet of the present invention.

Figure 17 is a left side view of Figure 16.

Figure 18 is a schematic view showing the state of the middle joint assembly of the folding cabinet of the present invention when it is turned over.

Figure 19 is a schematic view showing the structure of the lower joint assembly of the folding cabinet of the present invention.

Figure 20 is a cross-sectional view taken along line A-A of Figure 19.

Figure 21 is a cross-sectional view taken along line B-B of Figure 19.

Figure 22 is a schematic view showing the structure of the upper joint member in the lower joint assembly of the folding cabinet of the present invention.

Figure 23 is a left side view of Figure 22.

Figure 24 is a schematic view showing the structure of the lower joint member in the lower joint assembly of the folding cabinet of the present invention.

Figure 25 is a left side view of Figure 24.

Figure 26 is a schematic view showing the state of the lower joint assembly of the folding cabinet of the present invention. detailed description

The various joint assemblies of the present invention are further described below in conjunction with the drawings.

Referring to Figures 1, 2 and 3, the upper joint assembly of the folding cabinet includes upper and lower joint members 1, 2, a rotating shaft 3, two hexagon socket bolts 4, two screw sleeves 5, a sealing strip 6, and a set screw 7. Push in the screw 8. .

Referring to Figures 4 and 5, the upper joint member 1 has a stepped shape with a narrow width and a wide upper portion, and an upper portion 11 thereof is fixedly coupled to a top plate (not shown) of the folding cabinet, and the thickness of the upper portion 11 is only about twice the thickness of the lower portion 12. . At the intermediate position of the transition between the upper portion 11 and the lower portion 12, there is disposed a fork head 13 integrally connected with the upper joint member 1. On the lower portion 12, both sides of the fork head seat 13 may be symmetrically or asymmetrically opened. There are two sets of holes 14 and two screw sleeves 5 respectively embedded in the two sets of holes 14. If the screw sleeve 5 is damaged, the damaged screw sleeve 5 can be taken out and replaced with a new screw sleeve 5, so that Save on maintenance costs. At the bottom of the inner surface of the lower portion 11, there is provided a rib 15 which is equal in width to the entire lower portion 12 and which protrudes outwardly. The rib 15 mainly serves to press the sealing strip 6. A shaft hole 16 and a set screw hole 17 are defined in the fork base 13, and the shaft hole 16 extends through the entire fork seat 13 along the width direction of the fork block 13, and the center axis of the screw hole 17 should be aligned with the shaft The central axes of the holes 16 intersect perpendicularly.

Referring to Figures 6 and 7, the lower joint member 2 has a stepped shape with a narrow upper and a lower width, and a lower portion 22 thereof is fixedly coupled to an upper portion of an upper side plate (not shown) of the folding cabinet, and the thickness of the upper portion 21 is only the thickness of the lower portion 22 About half. A seat opening 23 matching the fork head 13 is defined at an intermediate position of the upper portion 21, that is, the width, thickness and height of the fork seat opening 23 are consistent with the width, thickness and height of the fork head seat 13, the fork block 13 just snaps into the fork seat 23. The two sides of the fork seat 23 are two fork arms 24, and the two fork arms 24 are provided with a coaxial shaft hole 25, which extends through the entire fork arm 24 along the width direction of the fork arm 24, and After the fork head 13 is snapped into the fork seat 23, the shaft hole 25 in the fork arm 24 should be on the same axis as the shaft hole 16 in the fork head 13 so that the shaft 3 passes through the upper and lower joints. Pieces 1, 2.

A U-shaped seal groove 25 is formed on the inner surface of the upper portion 21, and the width of the seal groove 25 is equal to the width of the entire upper portion. The weather strip 6 is also U-shaped and is embedded in the weather strip groove 25. On the upper portion 21, the two sides of the fork seat 23 may be symmetrically or unsymmetrically provided with two stepped holes 26, and the stepped holes 26 are mainly provided for facilitating the passage of the hexagonal bolts 4 and the sinking of the bolt heads. The two stepped holes 26 should be positioned coaxially with the two screw sleeves 5 on the upper joint member 1 when the upper and lower joint members 1 and 2 are mounted together to facilitate the mounting of the hexagon socket head bolts 4.

In order to facilitate the rotation, the inner and outer legs of the upper portion 21 of the lower joint member 2 should be inverted into rounded corners having a certain curvature. In any position on the upper portion 21, preferably in the middle position, a jacking screw hole 27 is provided, into which the jacking screw 8 is screwed.

Referring to Figures 1, 2 and 3, the lower portion 12 of the upper joint member 1 and the upper portion 21 of the lower joint member 2 are stacked together, and then the shafts in the two fork arms 24 of the upper portion 21 of the lower joint member 2 are specifically mounted. The hole 25 is placed in the nylon sleeve 9, and the shaft 3 is passed through the nylon sleeve 9 and the shaft hole 16 of the fork head 13 of the upper joint member 1, so that the upper and lower joint members 1, 2 are rotatably connected. A set screw 7 is screwed into the set screw hole 17 on the fork head 13, and the shaft 3 is tightened. A ring groove 31 is formed in the tightening portion of the rotating shaft 3, and the set screw 7 is just inserted into the ring groove 31, so that the axial movement of the rotating shaft 3 can be prevented.

If the shaft 3 is damaged, the set screw 7 can be unscrewed and the shaft 3 can be driven out, and the new shaft 3 can be replaced. If the nylon sleeve 9 is damaged, the nylon sleeve 9 can also be replaced in this way.

After the upper and lower joint members 1, 2 are assembled, they can be respectively welded to the top plate and the upper side plate of the folding cabinet. Folding container. When the folding container is opened, the upper and lower joint members 1, 2 are in an extended state, and the two hexagon socket bolts 4 are passed through the stepped holes 26 in the lower joint member 2, and screwed into the screw sleeve embedded in the upper joint member 1. In 5, the upper and lower joint members 1, 2 are firmly connected together, and the entire folding cabinet is formed into a stable cabinet.

When folding is required, referring to Fig. 8, the two hexagon socket bolts 4 are removed, and the upper side plate is rotated inward to drive the lower joint member 2 to rotate about the axis of the rotating shaft 3. When the lower joint member 2 is rotated to the horizontal state, it can be folded into position. .

Before folding, you can first screw in the jacking screw 8, and loosen the upper and lower joints 1, 2 to facilitate rotation.

Referring to Fig. 9, Fig. 10 and Fig. 11, the middle joint assembly of the folding cabinet includes upper and lower joint members la, 2a, two rotating shafts 3, four hexagon socket bolts 4, four screw sleeves 5, two sealing strips 6, two A set screw 7, two jacking screws 8, and a hinge 10.

Referring to Figures 12 and 13, the upper joint member 1a has a step shape of a lower narrow upper width, and an upper portion 11a thereof is fixedly coupled to a lower portion of the upper side plate (not shown) of the folding cabinet, and the thickness of the upper portion 11 has a thickness of the lower portion 12a. About twice. A fork seat 13a is defined in the middle of the lower portion 12a. The two sides of the fork seat 13a are two fork arms 14a. The two fork arms 14a are provided with a coaxial shaft hole 15a. The shaft hole 15a is along the fork. The width direction of the arm 14a extends through the entire wishbone arm 14a. A U-shaped seal groove 16a is formed on the inner surface of the lower portion 12a, and the width of the seal groove 16a is equal to the width of the entire lower portion 12a. The weather strip 6 is also U-shaped and is embedded in the weather strip groove 16a.

A sleeve hole 17a is formed in each of the two fork arms 14a. The two sleeve holes 17a may be symmetrically disposed or asymmetrically disposed on the fork arms 14a on both sides of the fork socket 13a. The two screw sleeves 5 respectively Inlaid into the two sets of holes 17a, if the screw sleeve 5 is damaged, the damaged screw sleeve 5 can be taken out and replaced with a new screw sleeve 5, which can save maintenance costs.

In order to facilitate the rotation, the inner and outer legs of the lower portion 12a of the upper joint member la should be inverted into rounded corners having a certain curvature. Referring to Figures 14 and 15, the lower joint member 2a has a stepped shape of a narrow upper and a lower width, and a lower portion 22a thereof is fixedly coupled to a lower side plate portion (not shown) of the folding cabinet, and a thickness of the upper portion 21a has a thickness of the lower portion 22a. About half. A fork seat 23a is formed at an intermediate position of the upper portion 21a. The fork seat port 23a has two fork arms 24a on both sides thereof, and a coaxial shaft shaft hole 25a is formed in the two fork arms 24a. The shaft hole 25a is along the fork arm. The width direction of 24a extends through the entire wishbone arm 24a. A U-shaped weather strip groove 26a is formed on the inner surface of the upper portion 21a, and the width of the seal groove 26a is equal to the width of the entire upper portion 21a. The weather strip 6 is also U-shaped and is embedded in the weather strip groove 26a.

A sleeve hole 27a is formed in each of the two fork arms 24a. The two sleeve holes 27a may be symmetrically disposed or asymmetrically disposed on the fork arms 24a on both sides of the fork seat opening 23a. The two screw sleeves 5 respectively Inlaid into the two sets of holes 27a, if the screw sleeve 5 is damaged, the damaged screw sleeve 5 can be taken out and replaced with a new screw sleeve 5, which can save maintenance. Cost.

In order to facilitate the rotation, the inner and outer legs of the upper portion 21a of the lower joint member 2a should be inverted into rounded corners having a certain curvature. Referring to Figures 16 and 17, the hinge 10 includes a flat plate 101 and a fork block 102 intermediate the flat plate 101 and integral with the flat plate 101. Two parallel shaft holes 103a, 103b are defined in the fork block 102. Two set screw holes 104a, 104b, two parallel shaft holes 103a, 103b extending through the entire fork block 102 along the width direction of the fork block 102, two set screw holes 104a, 104b and two shaft holes respectively 103a, 103b are penetrated, and the center axes of the set screw holes 104a, 104b should be perpendicular to the central axes of the shaft holes 103a, 103b.

At the bottom of the inner surface of the flat plate 101, a protruding strip 105 which is equal in width to the entire flat plate 101 and which protrudes outward is provided. The main function of the protruding strip 105 is to press the sealing strip 6 mounted on the upper and lower joint members la, 2a. .

On the flat plate 101, the two sides of the fork base 102 may be symmetrically or unsymmetrically provided with four stepped holes 106. The stepped holes 106 are mainly provided for facilitating the passage of the hexagon socket bolts 4 and the sinking of the bolt heads. The positions of the four stepped holes 106 should be coaxial with the four screw sleeves 5 on the upper and lower joint members la, 2a when the upper and lower joint members la, 2a are mounted together, to facilitate the hexagon socket bolts 4 installation.

Preferably, at any position on the flat plate 101, a jacking screw hole 27 is formed in each of the upper and lower positions of the fork block 102, and the two jacking screws 8 are screwed into the jacking holes 27 of the jacking holes.

Referring to Figures 9, 10 and 11, in the specific mounting, the lower portion 12a of the upper joint member 1a and the upper portion 21a of the lower joint member 2a are stacked on the hinge 10 plate 101, and then the lower portion 12a of the upper joint member 1a Two fork arms in the shaft hole 1.5a in the fork arm 14a and the upper portion 21a of the lower joint member 2a: a nylon sleeve 9 is placed in the shaft hole 25a in a, and a shaft 3 is passed through the upper joint member la The shaft hole 15a in the two fork arms 14a of the lower portion 12a and the shaft hole 103a on the fork block 102, and the other shaft 3 passes through the shaft hole 25a and the fork head in the two fork arms 24a of the upper portion 21a of the lower joint member 2a. The shaft hole 103b of the seat 102 connects the upper and lower joint members 1, 2 to the hinge base 10 in a rotatable manner. The two tightening screws 7 are screwed into the two set screw holes 104a, 104b on the fork block 102, and the two rotating shafts 3 are tightened. A ring groove 31 is formed in the two rotating shafts 3, and the set screw 7 is just inserted into the ring groove 31, so that the axial movement of the rotating shaft 3 can be prevented.

After the upper and lower joint members 1, 2 and the hinge 10 are assembled, they can be respectively welded to the upper and lower side plates of the folding cabinet to form a folding container. When the folding container is opened, the upper and lower joint members 1, 2 are in an extended state, and the four hexagon socket bolts 4 are passed through the stepped holes 106 in the hinge seat 10, and are screwed into the upper and lower joint members la, 2a. Four sets of screws In 5, the upper and lower joint members la, 2a and the hinge seat 10 are firmly connected, and the entire folding cabinet forms a stable cabinet.

When folding is required, referring to Figure 18, the four hexagon socket head bolts 4 are removed, and the upper and lower side plates are rotated inwardly to drive the upper and lower joint members la, 2a to rotate about the axes of the two rotating shafts 3, respectively. The joint members la, 2a can be folded into position by being rotated to a horizontal state. Before folding, you can screw in the jacking screw 8, and open the upper and lower joints 1, 2 to facilitate rotation. When the upper and lower joint members la, 2a are rotated to the horizontal state, the thickness of the upper and lower joint members la, 2a is exactly the height of the hinge 10.

Referring to Figures 19, 20 and 21, the lower joint assembly of the folding cabinet includes upper and lower joint members lb, 2b, a rotating shaft 3, two hexagon socket bolts 4, two screw sleeves 5, a sealing strip 6, and a set screw. 7. Push in the screw 8.

Referring to Figures 22 and 23, the upper joint member 1b is a stepped shape having a narrow width and a wide upper portion, and an upper portion lib is fixedly coupled to a lower side plate (not shown) of the folding cabinet, and the upper portion has a thickness twice the thickness of the lower portion 12b. about. A fork seat 13b is defined at an intermediate position of the lower portion 12b. Two sides of the fork seat 13b are two fork arms 14b. A coaxial shaft hole 15b is defined in the two fork arms 14b. The shaft hole 15b is along the fork arm. The width direction of 14b extends through the entire wishbone 14b. An inverted U-shaped seal groove 16b is formed on the inner surface of the lower portion 12b, and the width of the seal groove 16b is equal to the width of the entire lower portion. The weather strip 6 is also an inverted U-shaped structure that is embedded in the weather strip groove 16b. On the lower portion 12b, the two sides of the fork seat 13b may be symmetrically or unsymmetrically provided with two stepped holes 17b, and the stepped holes 17b are mainly for facilitating the passage of the hexagon socket bolts 4 and the sinking of the bolt heads. The two stepped holes 17b should be positioned coaxially with the two sets of screws 5 on the lower joint member 2 when the upper and lower joint members lb, 2b are mounted together to facilitate the mounting of the hexagon socket head bolts 4.

In order to facilitate the rotation, the inner and outer legs of the lower portion 12b of the upper joint member lb should be inverted into rounded corners having a certain curvature. At any position on the lower portion 12b, preferably, a jacking hole 18b is formed in the intermediate position, and the jacking screw 8 is screwed into the jacking screw hole 18b.

Referring to Figures 24 and 25, the lower joint member 2b has a stepped shape of a narrow upper and a lower width, and a lower portion 22b is fixedly coupled to a bottom plate (not shown) of the folding cabinet, and the upper portion 21b has a thickness of only about half of the thickness of the lower portion 22b. A fork seat 23b integrally connected with the lower joint member 2b is disposed at an intermediate position at the transition between the upper portion 21b and the lower portion 22b. A shaft hole 24b and a set screw hole 25b are defined in the fork head portion 23b. 24b extends through the entire yoke block 23b in the width direction of the yoke block 23b, and the center axis of the set screw hole 25b should intersect perpendicularly to the central axis of the shaft hole 24b.

On the upper portion 21b, the two sides of the fork base 23b may be symmetrically, and two sleeve holes 26b may not be asymmetrically opened. Two screw sleeves 5 are respectively embedded in the two sleeve holes 26b, if the screw sleeve 5 If it is damaged, the damaged screw sleeve 5 can be taken out and replaced with a new screw sleeve 5, which can save maintenance costs. The fork head 23b is matched with the fork seat 13b, that is, the width, thickness and height of the fork seat 13b coincide with the width, thickness and height of the fork head 23b, and the fork head 23b can just snap into the fork In port 13b. When the fork block 23b is snapped into the fork seat 13b, the shaft hole 15b in the fork arm 14b should be on the same axis as the shaft hole 24b in the fork head 23b, so that the shaft 3 passes through the upper and lower sides. The shaft holes 15b, 24b on the joint members lb, 2b.

At the bottom of the inner surface of the upper portion 21b, there is provided an outwardly projecting rib 27b which is equal in width to the entire upper portion 21b. The main function of the rib 27b is to press the sealing strip 6.

Referring to Figures 19, 20 and 21, in the specific mounting, the lower portion 12b of the upper joint member 1b is overlapped with the upper portion 21b of the lower joint member 2b, and then in the two fork arms 14b of the lower portion 12b of the upper joint member 1b. The shaft hole 15b is placed in the nylon sleeve 9, and the shaft 3 is passed through the shaft sleeve 24b of the fork sleeve 23b of the nylon sleeve 9 and the lower joint member 2b, so that the upper and lower joint members lb, 2b are rotatably connected. Screw a set screw 7 into the set screw hole 25b on the fork head 23b to tighten the shaft 3. A ring groove 31 is formed in the tightening portion of the rotating shaft 3, and the set screw 7 is just inserted into the ring groove 31, so that the axial movement of the rotating shaft 3 can be prevented.

After the upper and lower joint members 1 and 2 are assembled, they can be welded to the bottom plate and the lower side plate of the folding cabinet to form a folding container. When the folding container is opened, the upper and lower joint members lb, 2b are in an extended state, and the two hexagon socket bolts 4 are passed through the stepped holes 17b of the upper joint member 1b and screwed into the screw sleeve embedded in the lower joint member 2b. In 5, the upper and lower joint members lb, 2b can be firmly connected together, and the entire folding cabinet can form a stable cabinet.

When folding is required, referring to Fig. 26, the two hexagon socket bolts 4 are removed, and the lower side plate is rotated inward to drive the upper joint member lb to rotate about the axis of the rotating shaft 3. When the upper joint member lb is rotated to the horizontal state, it can be folded into position. .

Before folding, you can screw in the jacking screw 8, and loosen the upper and lower joint members lb, 2b to facilitate rotation.

The present invention may be embodied in other specific forms without departing from the spirit and scope of the invention. The above-disclosed embodiments are to be considered in all respects as illustrative and not restrictive. And the definition of the relative position of the rotating shaft and the like, and the joint structure in the same or similar manner should be included in the scope of the present invention.

Claims

Rights request

A joint assembly for a folding cabinet, characterized in that it comprises - upper and lower joint members,

Actively connecting the rotating shafts of the upper and lower joint members, the upper and lower joint members are rotatable about the axis of the rotating shaft;

A plurality of bolt fasteners detachably mounted between the upper and lower joint members, the bolt fasteners for positioning and securing the upper and lower joint members.

2. The joint assembly of a folding cabinet according to claim 1, wherein the upper and lower joint members are connected by a hinge, wherein the upper and lower joint members pass between the joint and the hinge The shaft is movably connected, and the detachable bolt fastener securely connects the upper and lower joint members to the hinge.

3. A joint assembly for a folding cabinet according to claim 1 or 2, wherein the bolt fastener is a hexagon socket head bolt.

4. A joint assembly for a folding cabinet according to claim 1, wherein a sealing strip is disposed between said upper and lower joint members. '

5. A joint assembly for a folding cabinet according to claim 2, wherein a sealing strip is disposed between the upper and lower joint members and the hinge.

6. The joint assembly of a folding cabinet according to claim 4, wherein a U-shaped sealing strip groove is defined in the upper or lower joint member, and the sealing strip is embedded in the sealing strip In the groove, a rib for pressing the sealing strip is provided on the lower or upper joint member.

7. The joint assembly of a folding cabinet according to claim 5, wherein a sealing groove of a U-shaped structure is formed on the upper and lower joint members, and the sealing strip is embedded in the sealing strip In the groove, a rib for pressing the sealing strip is provided on the hinge.

8. The joint assembly of a folding cabinet according to claim 4, wherein a fixing screw is disposed on the upper or lower joint member, and the set screw is pressed against the rotating shaft, The ring shaft is provided with a ring groove at a position where the set screw is held. .

9. The joint assembly of a folding cabinet according to claim 5, wherein a fixing screw is disposed on the hinge seat, the set screw is pressed against the rotating shaft, and the rotating shaft is tight A ring groove is provided in the portion where the fixed screw is placed.

10. A joint assembly for a folding cabinet according to claim 1 or 2, wherein a nylon sleeve is sheathed on the shaft.

11. A joint assembly for a folding cabinet according to claim 1 wherein said upper or lower joint member A screw sleeve is provided for screwing the bolt fasteners.

12. A joint assembly for a folding cabinet according to claim 2, wherein a screw sleeve for screwing the bolt fastener is embedded in the upper and lower joint members.

13. The joint assembly of a folding cabinet according to claim 1, wherein a screwing screw is screwed onto the upper or lower joint member, and a needle end of the jacking screw is placed on the lower or upper side On the joints.

14. The joint assembly of a folding cabinet according to claim 2, wherein a ejector screw is screwed on the coupling plate, and a needle end of the jacking screw is placed on the lower and upper joint members .