Locking device applied to container splicing

Abstract

A locking device applied to container splicing comprises a first locking piece, a second locking piece and a locking shaft, and the lower portion of the first locking piece and the lower portion of the second locking piece are each provided with a locking hook groove. The locking hook groove comprises a bottom hook face used for making contact with the groove inner locking face, a side hook face used for making contact with the lower end of the hole inner locking face and an extending face used for being close to or / and making contact with the hole inner locking face. The lower end of the side hook face is connected with the tail end of the bottom hook face. The lower end of the extending face extends downwards in the direction close to the tail end of the bottom hook face and is connected with the upper end of the side hook face. According to the container corner fitting locking device, the matching clearance of the corner fitting in the locking hook groove is reduced, the risk of displacement and looseness of the corner fitting is reduced, multi-direction locking of the container corner fitting can be achieved, the locking force is effectively improved, and the stability and safety of container splicing are enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of container splicing locking devices, and particularly relates to a locking device applied to container splicing. Background Art

[0002] A container house, also called a container building, a container movable house or a container residence, refers to a house mainly made of containers and slightly modified into a house with windows and doors. Such container houses are commonly used as dormitories for workers at construction sites, and some people also use them as rental houses. Therefore, container houses are also called residential containers, which have the advantages of being strong and durable and easy to build.

[0003] Referring to the Chinese patent with the patent number CN202330002307.5 previously disclosed by the applicant and Figure 5 As shown, a lock groove 101 is provided inside a corner fitting 100 of an existing container. A corner fitting hole is provided on one wall surface of the container corner fitting 100. The corner fitting hole usually adopts a sunken design, and its hole wall is usually an inclined or arc-shaped inner lock surface 102 of the hole, so that the locking member can conveniently pass through the corner fitting hole and then smoothly enter the lock groove 101 to realize the locking and fixing of the container. In the existing locking device, the rectangular hook groove of the locking member is usually set to be rectangular. The bottom surface and the side wall of the rectangular hook groove are respectively in contact and cooperation with the inner lock surface 103 of the lock groove 101 and the lower end of the inner lock surface 102 of the corner fitting hole to apply the locking force. Although this traditional locking method can realize the preliminary fixation of the container, it has obvious limitations in practical applications. Specifically, the side wall of the rectangular hook groove is vertically arranged, while the cross-section of the hole wall of the corner fitting hole is usually an inclined or arc-shaped inner lock surface 102. After the two locking members of the locking device are locked, there is a large fitting clearance (mating gap) between the side wall of the rectangular hook groove and the inner lock surface 102. The corner fitting 100 has a large movable space, so when subjected to an external force, the corner fittings 100 of the container are prone to displacement and loosening, and even the splicing of the containers is unstable, which may lead to safety accidents and cause damage to personnel. Summary of the Utility Model

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a locking device applied to container splicing.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A locking device applied to container splicing, including a first locking member, a second locking member and a locking shaft, characterized in that: the upper part of the first locking member is threadedly sleeved on the threaded section of the locking shaft, and the first locking member moves relative to the second locking member as it rotates around the threaded section of the locking shaft;

[0007] A locking head is provided on the locking shaft. The upper part of the second locking member is slidably sleeved on the locking shaft, and the upper part of the second locking member is located between the locking head and the first locking member;

[0008] Locking hook grooves are provided at the lower parts of both the first locking member and the second locking member. The locking hook groove includes a bottom hook surface for contacting the locking surface in the groove, a side hook surface for contacting the lower end of the locking surface in the hole, and an extension surface for leaning against and / or contacting the locking surface in the hole. The lower end of the side hook surface is connected to the end of the bottom hook surface; the lower end of the extension surface extends downward towards the end of the bottom hook surface and is connected to the upper end of the side hook surface.

[0009] In the present utility model, the locking hook groove further includes a top hook surface for contacting the top locking surface, and the end of the top hook surface is connected to the upper end of the extension surface.

[0010] In the present utility model, an external thread for driving the first locking member to move relative to the second locking member is provided on the outer peripheral surface at one end of the locking shaft. One end of the locking shaft and the external thread form the threaded section; a mating through hole for the locking shaft to pass through is provided on the upper part of the first locking member, and an internal thread that is threadedly engaged with the external thread is provided on the hole wall of the mating through hole.

[0011] In the present utility model, a sliding through hole for the locking shaft to pass through is provided on the upper part of the second locking member. The diameter of the sliding through hole is larger than the diameter of the locking shaft and smaller than the diameter of the locking head.

[0012] In the present utility model, both the first locking member and the second locking member include an upper vertical plate, an upper horizontal plate, an extension plate, a lower vertical plate, and a lower horizontal plate that are distributed from top to bottom. Among them, the upper parts of both the first locking member and the second locking member are the upper vertical plates;

[0013] The head end of the upper horizontal plate is connected to the lower end back surface of the upper vertical plate, and the tail end is connected to the upper end of the extension plate. The bottom surface of the upper horizontal plate is the top hook surface;

[0014] The lower end of the extension plate extends downward away from the upper vertical plate and is connected to the upper end of the lower vertical plate. The inner side surface of the extension plate is the extension surface;

[0015] The tail end of the lower horizontal plate is connected to the lower end front surface of the lower vertical plate. The front surface of the lower vertical plate is the side hook surface; the top surface of the lower horizontal plate is the bottom hook surface.

[0016] In the present utility model, the upper vertical plate, the upper horizontal plate, the extension plate, the lower vertical plate, and the lower horizontal plate are an integrally formed structure bent from a single metal plate.

[0017] In the present utility model, the included angle A between the upper vertical plate and the upper horizontal plate is between 80° and 100°; the included angle B between the upper horizontal plate and the extension plate is between 125° and 145°; the included angle C between the upper horizontal plate and the extension plate is between 125° and 145°; the included angle D between the lower vertical plate and the lower horizontal plate is between 80° and 100°.

[0018] In the present utility model, the locking head is integrally formed and connected to the other end of the locking shaft.

[0019] In the present utility model, the locking head is provided with a driving and cooperating structure for cooperating with a wrench to drive the locking shaft to rotate. The driving and cooperating structure is composed of a plurality of cooperating planes circumferentially distributed on the outer peripheral surface of the locking head, or the driving and cooperating structure is formed by a hexagonal groove provided on the end surface of the locking head facing away from the locking shaft.

[0020] The beneficial effects of the present utility model: Locking hook grooves are provided on both the first locking member and the second locking member of the present utility model. The locking hook groove includes a bottom hook surface, a side hook surface, and an extension surface; when locking, the bottom hook surface contacts the locking surface in the groove, applying a vertically upward locking force to prevent the first locking member or / and the second locking member from slipping out of the locking groove; the side hook surface contacts the locking surface in the hole, providing a lateral locking force to prevent the container from displacing in the horizontal direction; the extension surface is close to the locking surface in the hole, which can reduce the gap between them, thereby reducing the movement space of the corner fitting in the locking hook groove and preventing the container from loosening when subjected to external forces; moreover, if the extension surface contacts the locking surface in the hole, not only can the gap between them be reduced, but also the interaction between the extension surface and the locking surface in the hole can be utilized to further increase the locking force and prevent the container from loosening when subjected to external forces; the top hook surface contacts the top surface of the corner fitting, increasing the stability of the locking device and preventing the container from loosening when subjected to a vertically upward force.

[0021] In summary, the locking device provided by the present utility model, through the design of the multi-surface locking structure of the locking hook groove, not only reduces the fitting virtual space of the corner fitting in the locking hook groove, reduces the risk of displacement and loosening of the corner fitting, but also can achieve multi-directional locking of the container corner fitting, effectively improving the locking force and enhancing the stability and safety of container splicing. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present utility model will be further described below in conjunction with the drawings and embodiments:

[0023] Figure 1 is a perspective view of this embodiment;

[0024] Figure 2 is a front view of this embodiment;

[0025] Figure 3 is a cross-sectional view of the second locking member;

[0026] Figure 4 Schematic structural diagram of the locking device cooperating with two corner fittings;

[0027] Figure 5 Schematic structural diagram of the prior art. Specific embodiments

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

[0029] It should be noted that if there are directional indications (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial, head, tail...) involved in the embodiments of the present utility model, then such directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If this specific posture changes, then such directional indications will also change accordingly.

[0030] In addition, if there are descriptions involving "first" or "second" in the embodiments of the present utility model, then such descriptions of "first" or "second" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0031] Refer to Figures 1-4, A locking device applied to container splicing, including a first locking member 1, a second locking member 2 and a locking shaft 3. The upper part of the first locking member 1 is threadedly sleeved on the threaded section of the locking shaft 3, and the first locking member 1 moves relative to the second locking member 2 as it rotates based on the threaded section of the locking shaft 3. Specifically: An external thread 31 for driving the first locking member 1 to move relative to the second locking member 2 is provided on the outer peripheral surface at one end of the locking shaft 3, and one end of the locking shaft 3 and the external thread 31 form the threaded section. A mating through hole for the locking shaft 3 to pass through is provided on the upper part of the first locking member 1, and an internal thread that is threadedly engaged with the external thread 31 is provided on the hole wall of the mating through hole. When controlling the locking shaft 3 to rotate in the first direction, the first locking member 1 can be moved towards the second locking member 2, thereby reducing the distance between the first locking member 1 and the second locking member 2, and thus locking two adjacent containers. When controlling the locking shaft 3 to rotate in the second direction, the first locking member 1 can be moved away from the second locking member 2, thereby increasing the distance between the first locking member 1 and the second locking member 2, and thus releasing the container.

[0032] Further, a locking head 32 is provided on the locking shaft 3, and the upper part of the second locking member 2 is slidably sleeved on the locking shaft 3. The upper part of the second locking member 2 is located between the locking head 32 and the first locking member 1. Specifically, a sliding through hole 21 for the locking shaft 3 to pass through is provided on the upper part of the second locking member 2. The diameter of the sliding through hole 21 is larger than the diameter of the locking shaft 3, and the diameter of the sliding through hole 21 is smaller than the diameter of the locking head 32, thereby achieving the purpose of the second locking member 2 being slidably sleeved on the locking shaft 3, and being restricted by the locking head 32, it cannot slip off from the other end of the locking shaft 3, so that the second locking member 2 can cooperate with the first locking member 1 to lock two adjacent containers when the locking shaft 3 rotates in the first direction.

[0033] Still further, locking hook grooves 200 are provided at the lower parts of both the first locking member 1 and the second locking member 2. The locking hook groove 200 includes a bottom hook surface 201 for contacting the inner locking surface 103 in the groove, a side hook surface 202 for contacting the lower end of the inner locking surface 102 in the hole, and an extension surface 203 for leaning against and / or contacting the inner locking surface 102. The lower end of the side hook surface 202 is connected to the end of the bottom hook surface 201. The lower end of the extension surface 203 extends downward towards the end of the bottom hook surface 201 and is connected to the upper end of the side hook surface 202.

[0034] In addition, the top surface of the corner fitting 100 can be used as the top locking surface 104, and the locking hook groove 200 further includes a top hook surface 204 for contacting the top locking surface 104. The end of the top hook surface 204 is connected to the upper end of the extension surface 203.

[0035] When locked, the bottom hook surface 201 contacts the locking surface 103 in the groove, applying a vertically upward locking force to prevent the first locking member 1 and / or the second locking member 2 from slipping out of the locking groove 101; the side hook surface 202 contacts the locking surface 102 in the hole, providing a lateral locking force to prevent the container from displacing horizontally; the extension surface 203 is close to the locking surface 102 in the hole, which can reduce the gap between them, thus reducing the movement space of the corner fitting 100 in the locking hook groove 200 and preventing the container from loosening when subjected to external forces; moreover, if the extension surface 203 contacts the locking surface 102 in the hole, it can not only reduce the gap between them, but also utilize the interaction between the extension surface 203 and the locking surface 102 in the hole to further increase the locking force and prevent the container from loosening when subjected to external forces; the top hook surface 204 contacts the top surface of the corner fitting 100, increasing the stability of the locking device and preventing the container from loosening when subjected to a vertically upward force.

[0036] The locking device provided by the present utility model, through the design of the multi-surface locking structure of the locking hook groove 200, not only reduces the fitting clearance of the corner fitting 100 in the locking hook groove 200, reduces the risk of displacement and loosening of the corner fitting 100, but also can realize multi-directional locking of the container corner fitting 100, effectively improving the locking force and enhancing the stability and safety of container splicing.

[0037] As a preferred embodiment, both the first locking member 1 and the second locking member 2 include an upper vertical plate 301, an upper horizontal plate 302, an extension plate 303, a lower vertical plate 304, and a lower horizontal plate 305 distributed from top to bottom. Among them, the upper parts of the first locking member 1 and the second locking member 2 are the upper vertical plates 301, the fitting through hole is provided on the upper vertical plate 301 of the first locking member 1, and the sliding through hole 21 is provided on the upper vertical plate 301 of the second locking member 2;

[0038] The head end of the upper horizontal plate 302 is connected to the lower end back surface of the upper vertical plate 301, and the tail end is connected to the upper end of the extension plate 303. The bottom surface of the upper horizontal plate 302 is the top hook surface 204;

[0039] The lower end of the extension plate 303 extends downward away from the upper vertical plate 301 and is connected to the upper end of the lower vertical plate 304. The inner side surface of the extension plate 303 is the extension surface 203;

[0040] The tail end of the lower horizontal plate 305 is connected to the lower end front surface of the lower vertical plate 304. The front surface of the lower vertical plate 304 is the side hook surface 202; the top surface of the lower horizontal plate 305 is the bottom hook surface 201.

[0041] In this embodiment, the upper vertical plate 301, the upper horizontal plate 302, the extension plate 303, the lower vertical plate 304, and the lower horizontal plate 305 are an integrally formed structure bent from a single metal plate, with high structural stability.

[0042] In this embodiment, the included angle A between the upper vertical plate 301 and the upper horizontal plate 302 is between 80° and 100°, preferably the included angle A is 90°; the included angle B between the upper horizontal plate 302 and the extension plate 303 is between 125° and 145°, preferably the included angle B is 135°; the included angle C between the upper horizontal plate 302 and the extension plate 303 is between 125° and 145°, preferably the included angle C is 135°; the included angle D between the lower vertical plate 304 and the lower horizontal plate 305 is between 80° and 100°, preferably the included angle D is 90°, so that the upper vertical plate 301, the upper horizontal plate 302, the extension plate 303, the lower vertical plate 304 and the lower horizontal plate 305 enclose to form the locking hook groove 200.

[0043] As a preferred implementation manner, the locking head 32 is integrally formed and connected to the other end of the locking shaft 3, so as to improve the structural stability between them. Further, the locking head 32 is provided with a driving and matching structure for cooperating with a wrench to drive the locking shaft 3 to rotate. The driving and matching structure is composed of a plurality of matching planes 33 circumferentially distributed on the outer peripheral surface of the locking head 32, so that the locking shaft 3, the locking head 32 and the matching planes 33 provided on the locking head 32 form an external hexagonal bolt, allowing the manufacturer to directly use the existing external hexagonal bolt, reducing the production cost. Of course, it is not limited to the above structure. In other embodiments, the driving and matching structure is formed by a hexagonal groove provided on the end face of the locking head 32 facing away from the locking shaft 3, so that the locking shaft 3, the locking head 32 and the hexagonal groove provided on the locking head 32 form an internal hexagonal bolt.

[0044] The above are only the preferred implementation manners of the present invention. As long as the technical solutions that achieve the purpose of the present invention by basically the same means fall within the protection scope of the present invention.

Claims

1. A locking device for container splicing, comprising a first locking member (1), a second locking member (2) and a locking shaft (3), characterized in that: The upper thread of the first locking element (1) is sleeved on the threaded section of the locking shaft (3), and the first locking element (1) moves relative to the second locking element (2) based on the rotation of the threaded section of the locking shaft (3); The locking shaft (3) is provided with a locking head (32), the upper part of the second locking element (2) is slidably mounted on the locking shaft (3), and the upper part of the second locking element (2) is located between the locking head (32) and the first locking element (1); The first locking element (1) and the second locking element (2) are both provided with a locking hook groove (200) at their lower parts, the locking hook groove (200) comprising a bottom hook surface (201) for contacting a locking surface (103) in the groove, a side hook surface (202) for contacting a lower end of a locking surface (102) in the hole, and an extension surface (203) for approaching or / and contacting the locking surface (102) in the hole, the lower end of the side hook surface (202) being connected to the end of the bottom hook surface (201); the lower end of the extension surface (203) extending in a direction downwardly approaching the end of the bottom hook surface (201), and being connected to the upper end of the side hook surface (202).

2. A locking device for container splicing according to claim 1, characterized in that: The locking hook groove (200) further comprises a top hook surface (204) for contacting the top locking surface (104), and the end of the top hook surface (204) is connected to the upper end of the extension surface (203).

3. A locking device for container splicing according to claim 1, characterized in that: An external thread (31) for driving the first locking member (1) to move relative to the second locking member (2) is provided on the outer circumferential surface of one end of the locking shaft (3), and one end of the locking shaft (3) and the external thread (31) form the threaded section; a matching through hole for the locking shaft (3) to pass through is provided on the upper part of the first locking member (1), and an internal thread that matches the external thread (31) is provided on the hole wall of the matching through hole.

4. The locking device for container splicing according to claim 1, characterized in that: A sliding through hole (21) is provided on the upper portion of the second locking element (2) for the locking shaft (3) to pass through, the diameter of the sliding through hole (21) being larger than the diameter of the locking shaft (3), and the diameter of the sliding through hole (21) being smaller than the diameter of the locking head (32).

5. A locking device for container splicing according to any one of claims 1 to 4, characterized in that: The first locking element (1) and the second locking element (2) both comprise an upper vertical plate (301), an upper horizontal plate (302), an extension plate (303), a lower vertical plate (304) and a lower horizontal plate (305) which are arranged from top to bottom, wherein the upper parts of the first locking element (1) and the second locking element (2) are both the upper vertical plate (301); The head end of the upper horizontal plate (302) is connected to the back surface of the lower end of the upper vertical plate (301), and the tail end is connected to the upper end of the extension plate (303); the bottom surface of the upper horizontal plate (302) is a top hook surface (204); The lower end of the extension plate (303) extends downwardly away from the upper vertical plate (301) and is connected to the upper end of the lower vertical plate (304); the inner side surface of the extension plate (303) is the extension surface (203); The end of the lower transverse plate (305) is connected to the front face of the lower end of the lower vertical plate (304), the front face of the lower vertical plate (304) being the side hook face (202); and the top face of the lower transverse plate (305) being the bottom hook face (201).

6. A locking device for container splicing according to claim 5, characterized in that: The upper vertical plate (301), the upper horizontal plate (302), the extension plate (303), the lower vertical plate (304) and the lower horizontal plate (305) are an integrally formed structure formed by bending a metal plate.

7. The locking device for container splicing according to claim 5, characterized in that: The angle A between the upper vertical plate (301) and the upper horizontal plate (302) is between 80° and 100°; An included angle B between the upper transverse plate (302) and the extension plate (303) is between 125-145 degrees; an included angle C between the upper transverse plate (302) and the extension plate (303) is between 125-145 degrees; and an included angle D between the lower vertical plate (304) and the lower transverse plate (305) is between 80-100 degrees.

8. A locking device for container splicing according to any one of claims 1 to 4, characterized in that: The locking head (32) is integrally formed and connected to the other end of the locking shaft (3).

9. A locking device for container splicing according to claim 8, characterized in that: The locking head (32) is provided with a driving mating structure for cooperating with a wrench to drive the locking shaft (3) to rotate, the driving mating structure being composed of a plurality of mating planes (33) distributed along the circumferential direction on the outer peripheral surface of the locking head (32), or the driving mating structure being formed by a hexagonal groove provided on an end surface of the locking head (32) facing away from the locking shaft (3).

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