Fastener for box body connection

Abstract

The utility model discloses a fastener for box connection, which comprises a lower positioning seat and an upper positioning seat matched with a lock catch, and the lower positioning seat and the upper positioning seat are both mounted on a box through a hidden fixing unit. The hidden fixing unit comprises mounting grooves formed in the backs of the lower positioning seat and the upper positioning seat, locking nuts movably mounted in the mounting grooves and fixing screws in threaded connection with the locking nuts, and the ends of the fixing screws abut against the inner wall of the box body; the hidden fixing unit further comprises a back sealing plate fixedly connected to the back of the lower positioning seat and the back of the upper positioning seat, and a through hole allowing a locking nut to penetrate through is formed in the back sealing plate. The fixing screws, the locking nuts and other connecting pieces are all hidden, the connecting pieces are prevented from being exposed outside, the fastener cannot be detached outside, and the use protection function of the fastener is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fasteners, in particular to a fastener for connecting a box body. Background Art

[0002] The connection between the traditional box body and the box cover is mostly connected by a lock connection, which is generally composed of two relatively independent parts: a lock seat and a lock tongue assembly. One of the lock seat and the lock tongue assembly is fixed on the box cover, and the other is fixed on the box body. The lock of the box cover and the box body is achieved by locking the lock seat and the lock tongue assembly, thereby preventing the items in the box from being taken away by others.

[0003] After searching, Chinese patent announcement number: CN219528705U discloses a fastener for connecting a box body, which includes: an upper positioning seat and a lower positioning seat, and a card slot is set on the upper positioning seat; the lower positioning seat includes: a positioning plate, a vertical connecting ear set at the front end of the positioning plate, a U-shaped card connected to the connecting ear through a connecting piece, and a connecting shaft set between the inner sides of the U-shaped card; the U-shaped card is provided with a first locking hole, and the rear end of the positioning plate is provided with a second locking hole matching the first locking hole, and the middle of the connecting shaft is vertically connected with a card connector, and the end of the card connector matches the card slot. Although this solution can realize the locking of the box body and the box cover, the screws, rivets and other connecting parts used to fix the upper positioning seat and the lower positioning are usually directly exposed to the outside, making the fastener easy to be violently removed from the box body, thereby losing the locking protection function of the fastener on the box body. Utility Model Content

[0004] 1. Technical problems to be solved by the utility model

[0005] In view of the deficiencies of the prior art, the purpose of the present utility model is to provide a fastener for connecting a box, aiming to solve the problem in the prior art that the connecting parts used to fix the fasteners are exposed to the outside, making the fasteners easy to be violently removed from the box, thereby losing the locking protection function of the fasteners on the box.

[0006] 2. Technical solution

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A fastener for connecting the box body, comprising a lower positioning seat and an upper positioning seat that cooperate with the lock buckle, wherein the lower positioning seat and the upper positioning seat are both installed on the box body through a hidden fixing unit;

[0009] The hidden fixing unit comprises a mounting groove provided on the back of the lower positioning seat and the upper positioning seat, a locking nut movably installed in the mounting groove, and a fixing screw threadedly connected to the locking nut, wherein the end of the fixing screw abuts against the inner wall of the box body;

[0010] The hidden fixing unit also includes a back sealing plate fixedly connected to the back of the lower positioning seat and the upper positioning seat, and the back sealing plate is provided with a through hole for the locking nut to pass through, and the diameter of the through hole is smaller than the diameter of the installation groove.

[0011] Optionally, the locking nut and the mounting groove both have polygonal cross-sections, and the locking nut is adapted to be installed in the mounting groove.

[0012] Optionally, the length of the mounting groove is greater than the thickness of the locking nut.

[0013] Optionally, one end of the lower positioning seat is rotatably connected to a rotating cover via a pivot, an elastic member is sleeved on the pivot, a ring buckle is rotatably connected to the rotating cover, and an arc-shaped clamping plate is provided at one end of the upper positioning seat, a clamping groove is formed between the arc-shaped clamping plate and the upper positioning seat, and the ring buckle is clamped in the clamping groove.

[0014] Optionally, the back sealing plate is adapted to the shapes of the lower positioning seat and the upper positioning seat, a positioning column is fixedly connected to one side of the back sealing plate, and the backs of the lower positioning seat and the upper positioning seat are provided with positioning holes corresponding to the positions of the positioning columns and for their insertion.

[0015] Optionally, a connecting ear plate is fixedly connected to one side of the lower positioning seat, a through slot for the connecting ear plate to pass through is provided on the rotating cover, and a locking hole is provided on the connecting ear plate.

[0016] Optionally, a bending plate is fixedly connected to the bottom end of the rotating cover, and a plurality of anti-slip protrusions are provided on one side of the bending plate.

[0017] Optionally, both sides of the rotating cover are folded downward toward the positioning seat to form flanges, and a side of the rotating cover close to the flange is fixedly connected to a plurality of reinforcing ribs that are staggered horizontally and vertically.

[0018] 3. Beneficial effects

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] (1) The lower positioning seat and the upper positioning seat of the utility model are installed on the box body through a hidden fixing unit. The fixing screws, locking nuts and other connecting parts are all hidden to avoid the connecting parts being exposed to the outside, so that the fasteners cannot be disassembled from the outside, thereby improving the protection function of the fasteners.

[0021] (2) The utility model has a bent plate fixedly connected to the bottom end of the rotating cover, and a plurality of anti-skid protrusions are provided on one side of the bent plate. The bent plate facilitates the user to operate the rotating action of the rotating cover. By providing the anti-skid protrusions on the bent plate, the friction between the operator's hand and the plate is increased, which facilitates the operation of the rotating cover. By providing the flange and the reinforcing ribs, the structural strength of the rotating cover is improved, the risk of the rotating cover being broken due to excessive pressure is avoided, and the service life is increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the fasteners for connecting the box body from the first perspective;

[0023] Figure 2 It is a schematic diagram of the three-dimensional structure of the fastener for connecting the box body from the second perspective;

[0024] Figure 3 It is a schematic diagram of the structure of the fastener part for connecting the box body;

[0025] Figure 4 It is an enlarged schematic diagram of the back sealing plate structure;

[0026] Figure 5 It is a schematic diagram of the cross-sectional structure of the lower positioning seat;

[0027] Figure 6 This is a schematic diagram of the three-dimensional structure of the rotating cover from the first perspective;

[0028] Figure 7 It is a schematic diagram of the three-dimensional structure of the rotating cover from the second perspective.

[0029] In the figure: 1. lower positioning seat; 2. rotating cover; 3. pivot; 4. connecting ear plate; 5. ring buckle; 6. upper positioning seat; 7. arc-shaped clamping plate; 8. bending plate; 9. back sealing plate; 10. strengthening rib; 11. fixing screw; 12. mounting groove; 13. locking nut; 14. positioning hole; 15. positioning column; 16. through hole. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0031] Example:

[0032] See also Figure 1-Figure 7The present embodiment provides a fastener for connecting a box body, which can be applied to a storage box body (such as a suitcase, a refrigerator, a tool box, etc.). The fastener in the present embodiment is mainly used for fastening and locking a box cover and a box body to close the storage space between the box cover and the box body to ensure the safety of items stored in the storage space.

[0033] The box body connection fastener of this embodiment includes a lower positioning seat 1 and an upper positioning seat 6 that cooperate with the lock buckle. The lower positioning seat 1 and the upper positioning seat 6 are both installed on the box body through a hidden fixing unit. One end of the lower positioning seat 1 is rotatably connected to the rotating cover 2 through a pivot 3. An elastic member is sleeved on the pivot 3, and the elastic member is preferably a torsion spring. An annular buckle 5 is rotatably connected to the rotating cover 2. An arc-shaped card plate 7 is provided at one end of the upper positioning seat 6. A card slot is formed between the arc-shaped card plate 7 and the upper positioning seat 6. The annular buckle 5 is carded in the card slot. When in use, the lower positioning seat 1 is installed and fixed on the box body, and the upper positioning seat 6 is installed and fixed on the box cover. In practical applications, , the upper positioning seat 6 can also be installed on the box body, and the lower positioning seat 1 can be installed on the box cover. Specifically, the installation positions of the lower positioning seat 1 and the upper positioning seat 6 can adopt the conventional method in the field, which will not be repeated here. After the lower positioning seat 1 and the upper positioning seat 6 are installed, the annular buckle 5 can be inserted into the slot of the arc-shaped clamping plate 7 and the rotating cover 2 can be pressed to clamp the position of the annular buckle 5, thereby realizing the buckling and locking of the box cover and the box body, and the lower positioning seat 1 and the upper positioning seat 6 are installed on the box body through the hidden fixing unit set, so as to avoid the connection parts being exposed to the outside, so that the fasteners cannot be disassembled from the outside, and the safety of the fasteners is improved.

[0034] As an implementation method of this embodiment, Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the hidden fixing unit includes a mounting groove 12 opened on the back of the lower positioning seat 1 and the upper positioning seat 6, a locking nut 13 movably installed in the mounting groove 12, and a fixing screw 11 threadedly connected to the locking nut 13, the end of the fixing screw 11 abuts against the inner wall of the box body, and the hidden fixing unit also includes a back sealing plate 9 fixedly connected to the back of the lower positioning seat 1 and the upper positioning seat 6, and a through hole 16 is opened on the back sealing plate 9 for the locking nut 13 to pass through. The diameter of the through hole 16 is smaller than the diameter of the mounting groove 12. When the lower positioning seat 1 and the upper positioning seat 6 are installed, the lower positioning seat 1 The position seat 1 and the upper positioning seat 6 are tightly attached to the outer wall of the box body, and holes are drilled at the corresponding through holes 16 of the box body, and the fixing screws 11 are passed through the drilled holes and the through holes 16 in turn and enter the installation grooves 12, so that the fixing screws 11 are connected with the locking nuts 13 until the locking nuts 13 abut against the side walls of the back sealing plate 9 to complete the installation of the lower positioning seat 1 and the upper positioning seat 6. Through this structural design, the connecting parts are hidden to avoid being exposed to the outside, thereby improving the protection function of the fasteners. The installation grooves 12, locking nuts 13 and fixing screws 11 are preferably two groups.

[0035] In this embodiment, if Figure 5 As shown, the cross-sections of the locking nut 13 and the mounting groove 12 are both polygonal structures. The locking nut 13 is adapted to be installed in the mounting groove 12, so that the locking nut 13 is limited in the mounting groove 12 to prevent the locking nut 13 from rotating and affecting the connection and assembly with the fixing screw 11. The length of the mounting groove 12 is greater than the thickness of the locking nut 13. Preferably, the length of the mounting groove 12 is not less than twice the thickness of the locking nut 13. The excess part of the mounting groove 12 is the avoidance space for the fixing screw 11, so that the connection between the fixing screw 11 and the locking nut 13 is more stable.

[0036] In this embodiment, if Figure 3 and Figure 4 As shown, the back sealing plate 9 is adapted to the shape of the lower positioning seat 1 and the upper positioning seat 6. A positioning column 15 is fixedly connected to one side of the back sealing plate 9. The backs of the lower positioning seat 1 and the upper positioning seat 6 are provided with positioning holes 14 corresponding to the positions of the positioning columns 15 and for their insertion. By providing the positioning columns 15 and the positioning holes 14, the accuracy of the alignment installation of the back sealing plate 9 and the lower positioning seat 1 and the upper positioning seat 6 is guaranteed, and the assembly efficiency is improved. The positioning columns 15 and the positioning holes 14 are preferably two groups.

[0037] In this embodiment, if Figure 1 As shown, a connecting ear plate 4 is fixedly connected to one side of the lower positioning seat 1, a through slot for the connecting ear plate 4 to pass through is opened on the rotating cover 2, and a lock hole is opened on the connecting ear plate 4. After the lower positioning seat 1 and the upper positioning seat 6 are locked, the rotating cover 2 is placed in place, and the connecting ear plate 4 passes through the through slot and the lock through the lock hole, which is used to lock the fastener to improve safety.

[0038] In this embodiment, if Figure 1 , Figure 6 and Figure 7 As shown, a bending plate 8 is fixedly connected to the bottom end of the rotating cover 2, and a plurality of anti-skid protrusions are provided on one side of the bending plate 8. The bending plate 8 is convenient for users to operate the rotating action of the rotating cover 2. By providing anti-skid protrusions on the bending plate 8, the friction between the rotating cover 2 and the operator's hand is improved, which facilitates the operation of the rotating cover 2. Both sides of the rotating cover 2 are folded downward in the direction of the positioning seat 1 to form flanges, and a plurality of reinforcing ribs 10 staggered horizontally and vertically are fixedly connected to one side of the rotating cover 2 close to the flange. By providing the flange and the reinforcing ribs 10, the structural strength of the rotating cover 2 is improved, the risk of the rotating cover 2 being broken due to excessive pressure is avoided, and the service life is improved.

[0039] Working principle: When installing the lower positioning seat 1 and the upper positioning seat 6, the lower positioning seat 1 and the upper positioning seat 6 are pressed tightly against the outer wall of the box body, and holes are drilled at the corresponding through holes 16 of the box body, and the fixing screws 11 are passed through the drilled holes and the through holes 16 in turn, and enter the installation grooves 12, so that the fixing screws 11 are connected with the locking nuts 13 until the locking nuts 13 abut against the side walls of the back sealing plate 9 to complete the installation of the lower positioning seat 1 and the upper positioning seat 6, and then the annular buckle 5 is inserted into the slot of the arc-shaped clamping plate 7 and the rotating cover 2 is pressed to clamp the position of the annular buckle 5, thereby realizing the buckling and locking of the box cover and the box body. The lower positioning seat 1 and the upper positioning seat 6 of the utility model are installed on the box body through the hidden fixing unit set to avoid the connecting parts being exposed to the outside, so that the fasteners cannot be disassembled from the outside, thereby improving the safety of the fasteners.

[0040] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the protection scope of the present invention.

Claims

1. A fastener for connecting a box, characterized in that: It comprises a lower positioning seat (1) and an upper positioning seat (6) that cooperate with a lock buckle, wherein the lower positioning seat (1) and the upper positioning seat (6) are both installed on the box body through a hidden fixing unit; The hidden fixing unit comprises a mounting groove (12) provided on the back of the lower positioning seat (1) and the upper positioning seat (6), a locking nut (13) movably mounted in the mounting groove (12), and a fixing screw (11) threadedly connected to the locking nut (13), wherein the end of the fixing screw (11) abuts against the inner wall of the box body; The hidden fixing unit also includes a back sealing plate (9) fixedly connected to the back of the lower positioning seat (1) and the upper positioning seat (6), and the back sealing plate (9) is provided with a through hole (16) for the locking nut (13) to pass through, and the diameter of the through hole (16) is smaller than the diameter of the mounting groove (12).

2. The box connecting fastener according to claim 1, characterized in that: The locking nut (13) and the mounting groove (12) both have polygonal cross-sections, and the locking nut (13) is adapted to be mounted in the mounting groove (12).

3. The box connecting fastener according to claim 2, characterized in that: The length of the installation groove (12) is greater than the thickness of the locking nut (13).

4. The box connecting fastener according to claim 1, characterized in that: One end of the lower positioning seat (1) is rotatably connected to a rotating cover (2) via a pivot (3), an elastic member is sleeved on the pivot (3), and an annular buckle (5) is rotatably connected to the rotating cover (2). An arc-shaped clamping plate (7) is provided at one end of the upper positioning seat (6), a clamping groove is formed between the arc-shaped clamping plate (7) and the upper positioning seat (6), and the annular buckle (5) is clamped in the clamping groove.

5. The box connecting fastener according to claim 1, characterized in that: The back sealing plate (9) is adapted to the shapes of the lower positioning seat (1) and the upper positioning seat (6); a positioning column (15) is fixedly connected to one side of the back sealing plate (9); and the backs of the lower positioning seat (1) and the upper positioning seat (6) are provided with positioning holes (14) corresponding to the positions of the positioning columns (15) and for the insertion of the positioning columns (15).

6. The box connecting fastener according to claim 4, characterized in that: A connecting ear plate (4) is fixedly connected to one side of the lower positioning seat (1), a through slot for the connecting ear plate (4) to pass through is provided on the rotating cover (2), and a locking hole is provided on the connecting ear plate (4).

7. The box body connection fastener according to claim 4, characterized in that: A bending plate (8) is fixedly connected to the bottom end of the rotating cover (2), and a plurality of anti-slip protrusions are provided on one side of the bending plate (8).

8. The box connecting fastener according to claim 4, characterized in that: Both sides of the rotating cover (2) are folded downward in the direction of the positioning seat (1) to form flanges, and a plurality of reinforcing ribs (10) staggered in a transverse and longitudinal direction are fixedly connected to one side of the rotating cover (2) close to the flange.

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