Cabinet door closer

Abstract

The utility model discloses a cabinet door closer which comprises a shell, a spring bolt, a spring and a clamping hook. The shell is of a hollow cuboid structure with the left end closed and the right end open, the spring bolt comprises an insertion piece and a pressing block, an inverted-T-shaped groove used for installation of the clamping hook is formed in the middle of the upper side edge of the insertion piece, and the clamping hook is inserted into the inverted-T-shaped groove of the insertion piece from a clamping hook installation groove in the shell. According to the door closer, the structure is simple, due to the arrangement of the first elastic piece, the second elastic piece and the deformation groove, the door closer is high in overall structure matching degree and rapid and convenient to install, other connecting pieces are not needed, the door closer can assist a cam lock of a simple structure in use, the manufacturing complexity of a cabinet body structure is greatly reduced, and the airtightness of a cabinet door is effectively guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of cabinet accessories, in particular to a cabinet door closer. Background Art

[0002] In the existing steel cabinets with double doors, long connecting rod locks are mostly used. However, the lock structure of this structure is complicated, and it is necessary to process a pressure edge on the side of the opposite cabinet door where the lock is not installed. The two cabinet doors are pressed together to prevent the cabinet doors from loosening after being locked, resulting in complex cabinet manufacturing process, more materials, complex process flow and high production cost. In addition, for short hook or plug-in type cam locks with simple structure, after locking, if the two cabinet doors are subjected to outward opening force, even if a pressure edge is set on the cabinet doors, there will still be a certain gap between the two cabinet doors that opens outward, and the airtightness of the cabinet doors cannot be guaranteed. Therefore, there is an urgent need for a door closer that assists the cam lock. Utility Model Content

[0003] The utility model aims to overcome the deficiencies of the prior art and provide a cabinet door closer which cooperates with a cam lock and has a simple structure and ensures the airtightness of the cabinet door after being locked.

[0004] The technical solution adopted by the utility model is:

[0005] A cabinet door closer comprises a housing, a lock tongue, a spring and a hook; the housing and the lock tongue are both made of plastic, and the hook is made of metal;

[0006] The shell is a hollow rectangular parallelepiped structure with a closed left end and an open right end. An open clamping groove penetrating the front and rear sides of the shell is provided at the upper left corner of the shell. The open clamping groove forms a first elastic sheet at the upper left corner of the shell. A wedge block is provided on the first elastic sheet. A limited inclined platform is provided inside the upper left corner of the shell corresponding to the position of the open clamping groove; a hook installation groove is provided on the upper side surface close to the right end; and a lock tongue limiting groove is provided on the lower side surface close to the left end of the shell.

[0007] The lock tongue comprises an insert and a pressure block. The size of the insert matches the size of the internal space of the shell and is arranged in the shell. A spring mounting column is arranged on the left end surface of the insert, and the spring is arranged on the spring mounting column. An inclined surface matching the limiting ramp in the shell is arranged on the upper side of the spring mounting column. A groove is arranged on the lower side of the spring mounting column. A second elastic sheet inclined to the lower right is arranged on the groove, and the outer end of the second elastic sheet protrudes from the lower side of the insert; an inverted T-shaped groove for hook installation is arranged in the middle of the upper side of the insert, and chamfers are arranged at the notches on both sides of the inverted T-shaped groove. A deformation groove for hook installation is arranged at a position adjacent to one side of the inverted T-shaped groove. The pressure block is arranged on the right end of the insert, and the pressure block is a block-shaped structure of a quarter circle, and the thickness of the pressure block is the same as the thickness of the shell;

[0008] The lower part of the hook is provided with steps matching the inverted T-shaped groove on both sides, and the lower side of the step is provided with a bevel matching the chamfer of the inverted T-shaped groove; the hook is inserted into the inverted T-shaped groove of the insert from the hook installation groove on the shell.

[0009] Specifically, support blocks are evenly spaced apart on the lower side of the shell.

[0010] Specifically, the pressing block and the insert are an integrated structure.

[0011] Specifically, the upper and lower side surfaces at the right open end of the shell both protrude from the port setting, and a limiting guide groove for movement of the lock tongue is formed between the protruding portion and the right end of the shell.

[0012] Due to the adoption of the above-mentioned technical solution, the utility model has the following advantages:

[0013] The door closer of the utility model has a simple structure. The arrangement of the first elastic sheet, the second elastic sheet and the deformation groove makes the overall structure of the door closer highly coordinated. The installation is quick and convenient without the aid of other connecting parts. It can assist the use of a tongue lock with a simple structure, greatly reduces the complexity of cabinet structure manufacturing, and effectively ensures the airtightness of the cabinet door. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is an overall sectional schematic diagram of the utility model after assembly.

[0015] Figure 2 It is a schematic diagram of the internal state of the utility model in the locked state.

[0016] Figure 3 It is a schematic diagram of the housing of the utility model.

[0017] Figure 4 It is a cross-sectional schematic diagram of the shell of the utility model.

[0018] Figure 5 It is a schematic diagram of the lock tongue of the utility model.

[0019] Figure 6 It is a schematic diagram of the hook of the utility model.

[0020] In the figure: 1-housing, 101-opening clamping groove, 102-first elastic sheet, 103-wedge block, 104-limiting ramp, 105-hooking mounting groove, 106-lock tongue limiting groove, 107-support block, 108-limiting guide groove, 2-lock tongue, 21-insertion sheet, 211-spring mounting column, 212-groove, 213-second elastic sheet, 214-inverted T-shaped groove, 215-deformation groove, 22-pressing block, 3-spring, 4-hooking. DETAILED DESCRIPTION

[0021] The present invention is further explained below in conjunction with the accompanying drawings and embodiments, which should not be used to limit the protection scope of the present invention. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention.

[0022] Combined with Figure 1-6 The cabinet door closer shown comprises a housing 1, a locking tongue 2, a spring 3 and a hook 4; the housing 1 and the locking tongue 2 are both made of plastic, and the hook 4 is made of metal.

[0023] The shell 1 is a hollow rectangular structure with a closed left end and an open right end. An open clamping groove 101 that runs through the front and rear sides of the shell 1 is arranged at the upper left corner of the shell 1. The open clamping groove 101 forms a first elastic sheet 102 at the upper left corner of the shell 1. A wedge block 103 is arranged on the first elastic sheet 102. A limiting ramp 104 is arranged inside the upper left corner of the shell 1 corresponding to the position of the open clamping groove 101; a hook mounting groove 105 is arranged on the upper side surface near the right end; a lock tongue limiting groove 106 is arranged on the lower side surface of the shell 1 near the left end, and support blocks 107 are evenly spaced on the lower side surface of the shell 1; the upper and lower side surfaces at the open end of the right end of the shell 1 both protrude from the port setting, and a limiting guide groove 108 for the movement of the lock tongue 2 is formed between the protruding part and the right end of the shell 1.

[0024] The lock tongue 2 includes an insert 21 and a pressure block 22. The size of the insert 21 matches the size of the internal space of the housing 1 and is arranged in the housing 1. A spring mounting column 211 is arranged on the left end surface of the insert 21. The spring 3 is arranged on the spring mounting column 211. The upper side of the spring mounting column 211 is provided with an inclined surface that matches the limiting ramp 104 in the housing 1. The lower side of the spring mounting column 211 is provided with a groove 212. The groove 212 is provided with a second elastic sheet 213 inclined to the lower right. The second elastic sheet 213 The outer end protrudes from the lower side of the plug 21; an inverted T-shaped groove 214 for installing the hook 4 is provided in the middle of the upper side of the plug 21, and chamfers are relatively provided at the notches on both sides of the inverted T-shaped groove 214, and a deformation groove 215 for installing the hook 4 is provided at a position adjacent to one side of the inverted T-shaped groove 214. The pressing block 22 is provided on the right end of the plug 21, and the pressing block 22 is a quarter-circular block structure. The thickness of the pressing block 22 is the same as the thickness of the shell 1, and the pressing block 22 and the plug 21 are an integrated structure.

[0025] Steps matching the inverted T-shaped slot 214 are respectively arranged on both sides of the lower part of the hook 4, and the lower side of the step is arranged as a bevel matching the chamfer of the inverted T-shaped slot 214; the hook 4 is inserted into the inverted T-shaped slot 214 of the insert 21 from the hook installation slot 105 on the housing 1.

[0026] When assembling the cabinet door closer of the utility model, the spring 3 is first installed on the spring installation column 211 of the inserting piece 21, and then the lock tongue 2 is inserted from the open opening at the right end of the shell 1. When the inserting piece 21 is inserted into the shell 1, the second elastic piece 213 is squeezed by the lower side of the shell 1 and retracted into the groove 212. When the second elastic piece 213 moves to the position of the lock tongue limiting groove 106 in the shell 1, the second elastic piece 213 rebounds to its original state, and the end of the second elastic piece 213 is located in the lock tongue limiting groove 106, so that the lock tongue 2 is installed in place; after the lock tongue 2 is released, the spring 3 stretches, pushes the lock tongue 2 to the right end, and the end of the second elastic piece 213 is pushed to the right side of the lock tongue limiting groove 106, so that the lock tongue 2 is restricted from coming out of the shell 1.

[0027] During installation, the door closer after the bolt 2 is installed is respectively installed in the horizontal folds of the upper and lower door corners on the inner side of the cabinet door. When the door closer is placed in the folded edge of the cabinet door, the wedge block 103 is squeezed by the folded edge, so that the first elastic sheet 102 is retracted toward the open clamping groove 101. When the housing 1 is pushed until the hook installation groove 105 corresponds to the installation hole position reserved on the cabinet door and the pressing block 22 on the bolt 2 protrudes from the cabinet door corner, the door closer is installed in place; the rebound force of the first elastic sheet 102 and the support block 107 on the lower side ensure that the door closer is closed. The door device is installed firmly and not loosely in the folded edge on the inner side of the cabinet door; push the pressure block 22 to move the lock tongue 2 into the shell 1, and when the inverted T-shaped groove 214 on the lock tongue 2 corresponds to the hook installation groove 105 and the installation hole of the cabinet door, press the oblique sides of the lower end of the hook 4 on the chamfer of the inverted T-shaped groove 214 respectively, press the hook 4 to open one side of the inverted T-shaped groove 214 toward the deformation groove 215, when the two steps of the hook 4 enter the inverted T-shaped groove 214, after releasing the hook 4, the deformation disappears, and the hook 4 is installed in the inverted T-shaped groove 214.

[0028] When in use, first close the cabinet door with the door closer, and the hook 4 enters the corresponding hook 4 hole on the cabinet front frame. Then, when closing the cabinet door on the other side, the side of the cabinet door hits the arc edge of the pressing block 22, thereby pushing the lock tongue 2 to move into the shell 1, driving the hook 4 to move and hook the edge of the hook 4 hole on the cabinet front frame, and locking the lock on the cabinet door.

[0029] The parts not described in detail in this utility model are prior art.

[0030] The embodiments selected in this article for the purpose of disclosing the invention of the utility model are currently considered to be suitable, but it should be understood that the utility model is intended to include all changes and improvements of the embodiments that belong to the scope of the present concept and utility model.

Claims

1. A cabinet door closer, characterized in that: It includes a housing, a lock tongue, a spring and a hook; the housing and the lock tongue are made of plastic, and the hook is made of metal; The shell is a hollow rectangular parallelepiped structure with a closed left end and an open right end. An open clamping groove penetrating the front and rear sides of the shell is provided at the upper left corner of the shell. The open clamping groove forms a first elastic sheet at the upper left corner of the shell. A wedge block is provided on the first elastic sheet. A limited inclined platform is provided inside the upper left corner of the shell corresponding to the position of the open clamping groove; a hook installation groove is provided on the upper side surface close to the right end; and a lock tongue limiting groove is provided on the lower side surface close to the left end of the shell. The lock tongue comprises an insert and a pressure block. The size of the insert matches the size of the internal space of the shell and is arranged in the shell. A spring mounting column is arranged on the left end surface of the insert, and the spring is arranged on the spring mounting column. An inclined surface matching the limiting ramp in the shell is arranged on the upper side of the spring mounting column. A groove is arranged on the lower side of the spring mounting column. A second elastic sheet inclined to the lower right is arranged on the groove, and the outer end of the second elastic sheet protrudes from the lower side of the insert; an inverted T-shaped groove for hook installation is arranged in the middle of the upper side of the insert, and chamfers are arranged at the notches on both sides of the inverted T-shaped groove. A deformation groove for hook installation is arranged at a position adjacent to one side of the inverted T-shaped groove. The pressure block is arranged on the right end of the insert, and the pressure block is a block-shaped structure of a quarter circle, and the thickness of the pressure block is the same as the thickness of the shell; The lower part of the hook is provided with steps matching the inverted T-shaped groove on both sides, and the lower side of the step is provided with a bevel matching the chamfer of the inverted T-shaped groove; the hook is inserted into the inverted T-shaped groove of the insert from the hook installation groove on the shell.

2. The cabinet door closer according to claim 1, characterized in that: Support blocks are evenly spaced on the lower side of the shell.

3. The cabinet door closer according to claim 1, characterized in that: The pressing block and the insert are an integrated structure.

4. The cabinet door closer according to claim 1, characterized in that: The upper and lower side surfaces at the open end of the right end of the shell both protrude from the port setting, and a limiting guide groove for the movement of the lock tongue is formed between the protruding part and the right end of the shell.

Images