Embedded bolt mechanism and frame container

Abstract

The utility model relates to the field of containers, in particular to an embedded bolt mechanism and a frame container, the frame container comprises a bottom frame and four corner columns, the corner columns are detachably connected with the bottom frame and connected with the bottom frame through the embedded bolt mechanism, the embedded bolt mechanism comprises an insertion bolt and a base, the insertion bolt is fixed at the end of each corner column, and the base is fixed at the bottom of the bottom frame. And bases are arranged on four top corner pieces of the bottom frame. Semicircular pins capable of rotating around the center lines of the semicircular pins are arranged in the insertion bolt and the base respectively, each semicircular pin has a locking position and an unlocking position, and after the insertion bolt is inserted into the base, the two semicircular pins are located at the locking positions and embedded with each other. When the two semicircular pins are both located at the unlocking position, the insertion bolt can be taken out of the base. According to the frame container, the embedded bolt mechanisms are adopted, so that the corner columns can be conveniently detached from the bottom frame, two semicircular pins in the bolt mechanisms bear shearing force when the corner columns are inserted, and the structure is stable; when the corner columns are detached, the bottom frame and the corner columns are independently stored, and the occupied space during stacking storage is reduced.

Description

Technical Field

[0001] The utility model relates to the field of containers, in particular to an embedded latch mechanism and a frame container. Background Art

[0002] A frame container is a type of container, which is characterized by the lack of a top and two sides. It can be loaded and unloaded from the side of the container. It mainly carries overweight cargo and is convenient for lifting large, extra-wide, and extra-high cargo. There are two main types of existing frame boxes. One is a folding box with folding end walls. Its advantage is that it can be folded into a platform when not in use to reduce storage space, but the structure is more complicated and the cost is higher. The other is a frame box with fixed corner columns. Its advantage is that it has a simple structure and low cost, but when not in use, it requires a larger storage space. There is an urgent need for a frame box with detachable corner columns, which combines the advantages of the above two types of boxes. Utility Model Content

[0003] The utility model aims to provide a chimeric latch mechanism and a frame container to solve the problems raised by the background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a mosaic latch mechanism, comprising an insertion bolt and a base that cooperate with each other, the base being provided with an assembly groove for the insertion bolt to be inserted; the interiors of the insertion bolt and the base are both provided with semicircular pins that can rotate around their own center lines, wherein the semicircular pin inside the insertion bolt is a first semicircular pin, and the semicircular pin inside the base is a second semicircular pin; the first semicircular pin and the second semicircular pin both have a locking position and an unlocking position, after the insertion bolt is inserted into the base, the first semicircular pin and the second semicircular pin are both in the locking position and are embedded with each other; when the first semicircular pin and the second semicircular pin are both in the unlocking position, the insertion bolt can be taken out from the base.

[0005] Therefore, the utility model realizes the interlocking connection between the insertion bolt and the base by arranging semicircular pins in the insertion bolt and the base, and the semicircular pins bear the shear force between the insertion bolt and the base. The bolt mechanism has a simple and stable structure.

[0006] Preferably, the insertion bolt and the base are both provided with a reset device, the reset device is connected to the semicircular pin, and when the semicircular pin is not subjected to other external forces, the reset device drives the semicircular pin to rotate to the locked position, the first semicircular pin portion in the locked position leaks out of the insertion bolt, and the second semicircular pin portion in the locked position enters the assembly groove. Thus, the semicircular pin is automatically reset and engaged without external force through the reset device, that is, when the insertion bolt is inserted into the base, only the "insertion" action needs to be completed manually, and no other operations are required to make the two relatively fixed.

[0007] Preferably, the insertion bolt is also provided with an unlocking device, which is connected to the first semicircular pin. The unlocking device can be operated to rotate the first semicircular pin to the unlocking position; if the unlocking device is operated when the first semicircular pin and the second semicircular pin are engaged with each other, the first semicircular pin and the second semicircular pin are both rotated to the unlocking position, the first semicircular pin in the unlocking position completely enters the insertion bolt, and the second semicircular pin in the unlocking position does not enter the assembly groove at all. Thus, the unlocking device is used to realize the release of the engagement of the two semicircular pins after manual force is applied, that is, to release the connection between the insertion bolt and the base, and only the manual operation of the unlocking device is required.

[0008] Preferably, the semicircular pins each include a guide column, a curved wall, a straight wall and two mutually parallel semicircular walls, the curved wall, the straight wall and the semicircular wall are connected in pairs, the curved wall is concavely provided with an empty slot, the semicircular wall and the empty slot are penetrated by a guide column, the insertion bolt and the base are both provided with an arc-shaped waist hole that cooperates with the guide column; when the semicircular pin rotates, the guide column moves in the waist hole. Therefore, the cooperation between the guide column and the waist hole can realize the limitation of the movement trajectory of the semicircular pin, so that it can meet the movement between the locked position and the unlocked position.

[0009] Preferably, the insertion bolt and the base both include an assembly, the assembly includes two outer plates and two inner plates parallel to each other, the outer plates are arranged on both sides of the semicircular pin, the outer plates are provided with the waist hole; the inner plates are provided with a semicircular pin groove, the side wall of the semicircular pin groove cooperates with the curved wall, at least one side wall of the semicircular pin groove is a semicircular surface, when the semicircular pin is in the unlocked position, the semicircular pin is completely rotated into the semicircular pin groove. Thus, the semicircular pin is actually assembled with the assembly, and the semicircular pin is rotated around its own center line in combination with its own structure.

[0010] Preferably, the reset device is a spring, and a spring shaft is provided through the outer plate and at least one of the inner plates, one end of the spring is hooked on the spring shaft, and the other end is hooked on the guide column in the empty slot. Thus, the spring is used as a reset device, and the elasticity of the spring and its cooperation with the guide column and the spring shaft are utilized to realize the reset function of the semicircular pin.

[0011] Preferably, the insertion bolt further comprises a top plate and a bottom plate arranged on both sides of the assembly body, the top plate and the bottom plate are parallel to each other and perpendicular to the inner plate and the outer plate; the bottom plate is in a frustum shape, with the bottom surface with a larger area facing the top plate. Thus, when the insertion bolt is inserted into the base, the bottom surface with a smaller area of ​​the bottom plate first enters the base, and the bottom surface is connected to the bottom surface with a larger area through an inclined slope, so that when the bottom plate enters the assembly groove and applies force to the second semicircular pin, it can play a buffering role and reduce collision loss.

[0012] Preferably, the unlocking device is a handle, one end of which is connected to the curved wall of the first semicircular pin, and the other end passes through the top plate, and a movable groove for the handle to move is provided on the top plate. Thus, the handle is used as an unlocking device and fixed to the curved wall of the first semicircular pin. When the two semicircular pins are engaged, the handle can be turned to rotate the first semicircular pin, and the first semicircular pin transmits force to the second semicircular pin, so that the two semicircular pins can be rotated to the unlocking position.

[0013] Preferably, the base also includes a horizontal plate, a first vertical plate and two parallel second vertical plates arranged outside the assembly body, the horizontal plate, the first vertical plate and the second vertical plate are perpendicular to each other, and the horizontal plate is provided with an assembly opening; when the second semicircular pins are all rotated into the semicircular pin grooves, the position of the straight wall, the first vertical plate and the two second vertical plates together form the assembly groove; the insertion bolt is inserted into the assembly groove from the assembly opening. Thus, the horizontal plate, the first vertical plate and the second vertical plate are installed outside the assembly body of the base, which can not only better protect the assembly body and the second semicircular pins therein, but also the assembly groove surrounded by them can better fit the insertion bolt.

[0014] Based on the above technical solution, the utility model provides the following technical solution: a frame container, comprising a base frame and four corner columns, wherein the corner columns and the base frame are detachably connected, the corner columns and the base frame are connected by the above-mentioned embedded latch mechanism, one end of the corner column is fixed with a top corner piece, and the other end is fixed with the insertion bolt, and the base is provided on the four top corner pieces of the base frame.

[0015] Therefore, the frame container adopts a chimeric latch mechanism, so that the corner posts can be easily removed from the bottom frame. When the corner posts are inserted, the container can withstand stacking, top corner lifting and other working conditions as a frame box, and when lifting under heavy load, the two semicircular pins in the latch mechanism withstand the shear force, and the structure is stable; when the container is not in use, the corner posts can be removed to reduce the height, and the bottom frame and the corner posts can be stored separately, reducing the space occupied during stacking and storage, and the bottom frame can also be used as a platform box. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1This is a structural schematic diagram of an embodiment of a frame container of the utility model;

[0017] Figure 2 yes Figure 1 Side view of

[0018] Figure 3 yes Figure 2 Middle AA section;

[0019] Figure 4 It is an exploded structural diagram of an embodiment of the insertion plug of the utility model;

[0020] Figure 5 It is an exploded structural diagram of an embodiment of the base of the utility model;

[0021] Figure 6 It is a structural diagram of an embodiment of the assembly of the utility model;

[0022] Figure 7 yes Figure 3 A magnified schematic diagram of part B;

[0023] Figure 8 is a schematic cross-sectional view of a first semicircular pin inserted into a bolt when it is in a locked position;

[0024] Fig. 9 is a schematic cross-sectional view of the first semicircular pin in the insertion bolt when it is in the unlocked position (the spring is omitted);

[0025] Fig.10 is a schematic cross-sectional view of a second semicircular pin in the base when it is in a locked position;

[0026] Fig.11 It is a cross-sectional schematic diagram when the second semicircular pin in the base is in the unlocked position (the spring is omitted). DETAILED DESCRIPTION

[0027] The utility model discloses a frame container in the embodiment. Figures 1 to 3 The frame container includes a base frame 6 and four corner posts 5. The corner posts 5 and the base frame 6 are detachably connected. The corner posts 5 and the base frame 6 are connected by a chimeric latch mechanism. The chimeric latch mechanism includes an insertion bolt 1 and a base 2 that cooperate with each other. A top corner piece is fixed at one end of the corner post 5, and an insertion bolt 1 is fixed at the other end. The four top corner pieces of the base frame 6 are all provided with a base 2.

[0028] See also Figures 4 to 11The base 2 is provided with an assembly groove 25 for the insertion bolt 1 to be inserted, and the insertion bolt 1 and the base 2 are both provided with a semicircular pin 3 that can rotate around their own center line, wherein the semicircular pin 3 inside the insertion bolt 1 is a first semicircular pin 3a, and the semicircular pin 3 inside the base 2 is a second semicircular pin 3b, that is, the insertion bolt 1 is provided with a first semicircular pin 3a that can rotate around its own center line, and the base 2 is provided with a second semicircular pin 3b that can rotate around its own center line. The first semicircular pin 3a and the second semicircular pin 3b both have a locked position and an unlocked position, see FIG. Figure 8 and Fig.10 , Figure 8 is a cross-sectional schematic diagram when the first semicircular pin 3a is in a locked position, Fig.10 is a cross-sectional schematic diagram of the second semicircular pin 3b in the locked position; see Fig. 9 and Fig.11 , Fig. 9 is a cross-sectional schematic diagram when the first semicircular pin 3a is in the unlocking position, Fig.11 It is a cross-sectional schematic diagram showing that the second semicircular pin 3b is in the unlocking position.

[0029] After the insertion bolt 1 is inserted into the base 2, the first semicircular pin 3a and the second semicircular pin 3b are both in a locked position and fit into each other. Figure 7 When the first semicircular pin 3a and the second semicircular pin 3b are both in the unlocked position, the plug 1 can be removed from the base 2. This embodiment realizes the interlocking connection between the plug 1 and the base 2 by arranging the semicircular pin 3 in the plug 1 and the base 2, and the semicircular pin 3 bears the shear force between the plug 1 and the base 2, so that the structure is simple and stable.

[0030] The insertion bolt 1 and the base 2 are both provided with a reset device, which is connected to the semicircular pin 3. When the semicircular pin 3 is not subjected to other external forces, the reset device drives the semicircular pin 3 to rotate to the locked position. Figure 8 , the first semicircular pin 3a in the locked position partially leaks out of the insertion bolt 1, see Fig.10 , the second semicircular pin 3b in the locked position partially enters the assembly groove 25. The semicircular pin 3 is automatically reset and engaged without external force through the reset device, that is, when the insertion bolt 1 is inserted into the base 2, only the "insertion" action needs to be completed manually, and no other operations are required to make the two relatively fixed.

[0031] The insertion bolt 1 is also provided with an unlocking device, which is connected to the first semicircular pin 3a. When the unlocking device is operated, the first semicircular pin 3a can be rotated to the unlocking position; when the first semicircular pin 3a and the second semicircular pin 3b are engaged with each other, the first semicircular pin 3a and the second semicircular pin 3b are both rotated to the unlocking position. Fig. 9 , the first semicircular pin 3a in the unlocked position completely enters the insertion bolt 1, see Fig.10, the second semicircular pin 3b in the unlocked position does not enter the assembly groove 25 at all. The unlocking device is used to release the engagement of the two semicircular pins 3 after manual force is applied, that is, to release the connection between the insertion bolt 1 and the base 2, and only the unlocking device needs to be manually operated.

[0032] Specifically, see Figures 4 to 5 The first semicircular pin 3a and the second semicircular pin 3b have the same structure. The semicircular pin 3 includes a guide column 34, a curved wall 31, a straight wall 32 and two semicircular walls 33 parallel to each other. The curved wall 31, the straight wall 32 and the semicircular wall 33 are connected in pairs. Therefore, when the first semicircular pin 3a and the second semicircular pin 3b are interlocked with each other, the straight walls 32 of the two overlap. Figure 7 The curved wall 31 is provided with an empty groove 35 inwardly, and a guide column 34 is provided through both the semicircular wall 33 and the empty groove 35. The insertion bolt 1 and the base 2 are both provided with an arc-shaped waist hole 45 cooperating with the guide column 34. The plane where the axis of the guide column 34 is located passes through the center line of the semicircular pin 3 and is perpendicular to the straight wall 32. When the semicircular pin 3 rotates, the guide column 34 moves in the waist hole 45. The cooperation between the guide column 34 and the waist hole 45 can realize the limitation of the movement trajectory of the semicircular pin 3, that is, the semicircular pin 3 can rotate around its own axis, thereby realizing the movement of the two in the locked position and the unlocked position.

[0033] The plug 1 and the base 2 both include an assembly, see Figure 6 , Figure 6 An embodiment of an assembly is provided, and the embodiment is applied to the base 2. The assembly includes two outer plates 42 and two inner plates 41 which are parallel to each other. The outer plates 42 are arranged on both sides of the semicircular pin 3. The outer plates 42 are provided with the above-mentioned arc-shaped waist holes 45; the inner plates 41 are provided with semicircular pin grooves 46. The side walls of the semicircular pin grooves 46 cooperate with the curved walls 31, and can fully accommodate the semicircular pin 3. In addition, the side walls of the semicircular pin grooves 46 of at least one inner plate 41 are semicircular surfaces, which fully match the curved walls 31, and provide support and guidance for the rotation of the semicircular pin 3. When the semicircular pin 3 is in the unlocked position, the semicircular pin 3 is completely rotated into the semicircular pin groove 46. Since the first semicircular pin 3a also needs to be connected to an unlocking device, a space for setting the unlocking device needs to be reserved on the inner plate 41 of the insertion bolt 1, see. Figure 4 The assembly is actually assembled with the semicircular pin 3, and the semicircular pin 3 is rotated around its own center line in combination with its own structure.

[0034] The reset device is a spring 43. A spring shaft 44 is provided through the outer plate 42 and at least one inner plate 41. One end of the spring 43 is hooked on the spring shaft 44, and the other end is hooked on the guide column 34 in the empty slot 35. Based on the structure of the spring 43 and the guide column 34, the spring 43 can always keep the semicircular pin 3 in the locked position without external force. When the semicircular pin 3 is in the unlocked position or rotates from the locked position to the unlocked position due to external force, the spring 43 is stretched. Once the external force disappears, the spring 43 immediately brings the semicircular pin 3 to reset to the locked position. The spring 43 is used as a reset device, and the elasticity of the spring 43 and its cooperation with the guide column 34 and the spring shaft 44 are utilized to realize the reset function of the semicircular pin 3. The unlocking device is a handle 13. One end of the handle 13 is connected to the curved wall 31 of the first semicircular pin 3a, and the other end passes through the top plate 11. The top plate 11 is provided with a movable groove 14 for the handle 13 to move. The handle 13 is used as an unlocking device and fixed to the curved wall 31 of the first semicircular pin 3a. When the two semicircular pins 3 are engaged, the handle 13 can be turned to rotate the first semicircular pin 3a, and the first semicircular pin 3a transmits force to the second semicircular pin 3b, thereby realizing the rotation of the two semicircular pins 3 to the unlocking position.

[0035] See also Figure 4 , Figure 8 and Fig. 9 The insertion bolt 1 also includes a top plate 11 and a bottom plate 12 arranged on both sides of the assembly body. The top plate 11 and the bottom plate 12 are parallel to each other and perpendicular to the inner plate 41 and the outer plate 42. The bottom plate 12 is in a frustum shape, with the bottom surface with a larger area facing the top plate 11. When the insertion bolt 1 is inserted into the base 2, the bottom surface with a smaller area of ​​the bottom plate 12 first enters the base 2, and the bottom surface is connected to the bottom surface with a larger area through an inclined slope, so that when the bottom plate 12 enters the assembly groove 25 and applies force to the second semicircular pin 3b, it can play a buffering role and reduce collision loss.

[0036] See also Figure 5 , Fig.10 and Fig.11 The base 2 further includes a horizontal plate 21, a first vertical plate 22 and two parallel second vertical plates 23 arranged outside the assembly body. The horizontal plate 21, the first vertical plate 22 and the second vertical plate 23 are perpendicular to each other, and the horizontal plate 21 is provided with an assembly opening 24; when the second semicircular pin 3b is fully rotated into the semicircular pin groove 46, the position of the straight wall 32, the first vertical plate 22 and the two second vertical plates 23 together form an assembly groove 25; the insertion bolt 1 is inserted into the assembly groove 25 from the assembly opening 24. The horizontal plate 21, the first vertical plate 22 and the second vertical plate 23 are installed outside the assembly body of the base 2, which can not only better protect the assembly body and the second semicircular pin 3b therein, but also the assembly groove 25 formed by them can better fit the insertion bolt 1.

[0037] Based on the above structure, during the insertion process of the corner column 5 into the base frame 6, that is, during the insertion process of the insertion bolt 1 into the base 2, the Figure 8 and Fig.10 , the base 2 applies force to the first semicircular pin 3a, and the insertion bolt 1 applies force to the second semicircular pin 3b, so that the first semicircular pin 3a and the second semicircular pin 3b are both rotated from the locked position to the unlocked position, that is, Figure 8 The first semicircular pin 3a in Fig. 9 The position in the rotation, that is Fig.10 The second semicircular pin 3b in Fig.11 The position in the rotation.

[0038] When the insertion bolt 1 is completely inserted into the base 2, the first semicircular pin 3a and the second semicircular pin 3b are both reset to the locking position by the spring 43, see Figure 7 , realize the mutual engagement of the first semicircular pin 3a and the second semicircular pin 3b, combined with Figure 3 At this time, the corner column 5 and the base frame 6 are relatively fixedly connected. If the corner column 5 needs to be hoisted, the shear force between the insertion bolt 1 and the base 2 is borne by the first semicircular pin 3a and the second semicircular pin 3b.

[0039] When disassembly is required, the handle 13 is turned to rotate the first semicircular pin 3a from the locked position to the unlocked position. Figure 7 and Figure 8 ,along Figure 8 By moving the handle 13 in the direction of the middle arrow, the first semicircular pin 3a drives the second semicircular pin 3b to rotate from the locked position to the unlocked position, the insertion bolt 1 can be taken out from the base 2, that is, the corner column 5 can be removed from the base frame 6. Figure 1 .

[0040] In summary, the frame container of the utility model adopts a chimeric latch mechanism, so that the corner post 5 can be easily disassembled from the bottom frame 6. When the corner post 5 is inserted, the container is used as a frame box to withstand stacking, top corner lifting and other working conditions; when lifting under a heavy load state, the two semicircular pins 3 in the latch mechanism withstand the shear force, and the structure is stable; when the container is not in use, the corner post 5 can be removed to reduce the height, and the bottom frame 6 and the corner post 5 can be stored separately, reducing the space occupied during stacking and storage, and the bottom frame 6 can also be used as a platform box.

[0041] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A chimeric latch mechanism, characterized in that: The invention comprises an insertion bolt (1) and a base (2) which cooperate with each other, wherein the base (2) is provided with an assembly groove (25) for inserting the insertion bolt (1); the inside of the insertion bolt (1) and the base (2) are both provided with a semicircular pin (3) which can rotate around its own center line, wherein the semicircular pin (3) inside the insertion bolt (1) is a first semicircular pin (3a), and the semicircular pin (3) inside the base (2) is a second semicircular pin (3b); the first semicircular pin (3a) and the second semicircular pin (3b) both have a locking position and an unlocking position, and after the insertion bolt (1) is inserted into the base (2), the first semicircular pin (3a) and the second semicircular pin (3b) are both in the locking position and fit into each other; when the first semicircular pin (3a) and the second semicircular pin (3b) are both in the unlocking position, the insertion bolt (1) can be taken out of the base (2).

2. The interlocking latch mechanism according to claim 1, characterized in that: The insertion bolt (1) and the base (2) are both provided with a reset device, and the reset device is connected to the semicircular pin (3). When the semicircular pin (3) is not subjected to other external forces, the reset device drives the semicircular pin (3) to rotate to a locked position, and the first semicircular pin (3a) in the locked position partially leaks out of the insertion bolt (1), and the second semicircular pin (3b) in the locked position partially enters the assembly groove (25).

3. The interlocking latch mechanism according to claim 2, characterized in that: The insertion bolt (1) is also provided with an unlocking device, which is connected to the first semicircular pin (3a). When the unlocking device is operated, the first semicircular pin (3a) can be turned to an unlocking position. If the unlocking device is operated when the first semicircular pin (3a) and the second semicircular pin (3b) are engaged with each other, the first semicircular pin (3a) and the second semicircular pin (3b) are both rotated to the unlocking position, the first semicircular pin (3a) in the unlocking position completely enters the insertion bolt (1), and the second semicircular pin (3b) in the unlocking position does not enter the assembly groove (25) at all.

4. The embedded latch mechanism according to claim 3, characterized in that: The semicircular pin (3) comprises a guide column (34), a curved wall (31), a straight wall (32) and two mutually parallel semicircular walls (33); the curved wall (31), the straight wall (32) and the semicircular wall (33) are connected in pairs; a hollow groove (35) is concavely arranged in the curved wall (31); a guide column (34) is simultaneously penetrated through the semicircular wall (33) and the hollow groove (35); the insertion bolt (1) and the base (2) are both provided with an arc-shaped waist hole (45) matched with the guide column (34); when the semicircular pin (3) rotates, the guide column (34) moves in the waist hole (45).

5. The embedded latch mechanism according to claim 4, characterized in that: The insertion bolt (1) and the base (2) both include an assembly, which includes two outer plates (42) and two inner plates (41) that are parallel to each other. The outer plates (42) are arranged on both sides of the semicircular pin (3), and the outer plates (42) are provided with the waist hole (45); the inner plates (41) are provided with a semicircular pin groove (46), and the side wall of the semicircular pin groove (46) cooperates with the curved wall (31). The side wall of at least one of the semicircular pin grooves (46) is a semicircular surface. When the semicircular pin (3) is in the unlocked position, the semicircular pin (3) is completely rotated into the semicircular pin groove (46).

6. The embedded latch mechanism according to claim 5, characterized in that: The reset device is a spring (43), and a spring shaft (44) is provided through the outer plate (42) and at least one of the inner plates (41). One end of the spring (43) is hooked on the spring shaft (44), and the other end is hooked on the guide column (34) in the empty slot (35).

7. The embedded latch mechanism according to claim 5, characterized in that: The insertion bolt (1) further comprises a top plate (11) and a bottom plate (12) arranged on both sides of the assembly body; the top plate (11) and the bottom plate (12) are parallel to each other and perpendicular to the inner plate (41) and the outer plate (42); the bottom plate (12) is in the shape of a cone, with a bottom surface with a larger area facing the top plate (11).

8. The embedded latch mechanism according to claim 7, characterized in that: The unlocking device is a handle (13), one end of which is connected to the curved wall (31) of the first semicircular pin (3a), and the other end of which passes through the top plate (11). The top plate (11) is provided with a movable groove (14) for the handle (13) to move.

9. The embedded latch mechanism according to claim 5, characterized in that: The base (2) further comprises a transverse plate (21), a first longitudinal plate (22) and two parallel second longitudinal plates (23) arranged outside the assembly body; the transverse plate (21), the first longitudinal plate (22) and the second longitudinal plates (23) are perpendicular to each other, and the transverse plate (21) is provided with an assembly opening (24); when the second semicircular pin (3b) is completely rotated into the semicircular pin groove (46), the position of the straight wall (32) together with the first longitudinal plate (22) and the two second longitudinal plates (23) form the assembly groove (25); the insertion bolt (1) is inserted into the assembly groove (25) from the assembly opening (24).

10. A frame container, comprising a base frame (6) and four corner posts (5), wherein the corner posts (5) and the base frame (6) are detachably connected, characterized in that: The corner post (5) and the base frame (6) are connected by the interlocking latch mechanism described in any one of claims 1 to 9, a top corner piece is fixed at one end of the corner post (5), and the insertion bolt (1) is fixed at the other end, and the base (2) is provided on each of the four top corner pieces of the base frame (6).

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