Door body locking mechanism and sound insulation test box

Abstract

The utility model discloses a door body locking mechanism and a sound insulation test box. The door body locking mechanism is simple in structure and flexibly locks to reduce vibration stress. The door body locking mechanism comprises a spring bolt installed on a door body and a lock catch assembly installed on a door frame, the lock catch assembly comprises a lock catch installation base, a lock catch and an elastic floating module, the lock catch installation base is fixed to the edge of the door frame, the lock catch is hinged and fixed in the lock catch installation base, and the elastic floating module is installed in the lock catch installation base and located at the lower end of the lock catch. When the lock tongue is buckled with the lock catch assembly, the lock catch is located on a downward pressing rail of the lock tongue, the lock tongue drives the lock catch to swing downwards to form flexible lever type collision when being pressed downwards, the lock catch compresses the elastic floating module when swinging downwards, and when the lock tongue is pressed downwards in place, the lock catch rebounds under the elastic acting force of the elastic floating module, and the lock tongue is buckled in the lock catch installation base. The utility model is applied to the technical field of acoustic testing.

Description

Technical Field

[0001] The utility model is applied to the technical field of acoustic testing, and particularly relates to a door locking mechanism and a sound insulation test box. Background Art

[0002] At present, in the technical field of acoustic testing, the acoustic performance of acoustic and electrical products is tested using a sound insulation test box. However, most doors on the market currently use a rotating downward pressure structure design, which has complex usage requirements and poor compatibility. In addition, Figure 1 As shown, the existing door locking mechanism includes a lock tongue 1a installed on the door body and a lock post 2a fixed on the door frame. The door lock tongue 1a will have a hard collision with the lock post 2a when pressed down to lock, which may easily cause the product vibration stress during the test of the adjacent sound insulation box, and the background noise will be instantly high, resulting in the failure of the entire test. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a door locking mechanism and a sound insulation test box with a simple structure and flexible locking to reduce vibration stress.

[0004] The technical solution adopted by the utility model is: the utility model includes a door body locking mechanism and a sound insulation test box, the door body locking mechanism includes a lock tongue installed on the door body and a lock buckle assembly installed on the door frame, the lock buckle assembly includes a lock buckle mounting seat, a lock buckle and an elastic floating module, the lock buckle mounting seat is fixed to the edge of the door frame, the lock buckle is hinged and fixed in the lock buckle mounting seat, the elastic floating module is installed in the lock buckle mounting seat and is located at the lower end of the lock buckle, when the lock tongue is buckled with the lock buckle assembly, the lock buckle is located on the downward pressure track of the lock tongue, and when the lock tongue is pressed down, it drives the lock buckle to swing downward to form a flexible lever-type collision, and the lock buckle compresses the elastic floating module when it swings downward, and when the lock tongue is pressed into place, the lock buckle rebounds under the elastic force of the elastic floating module to buckle the lock tongue in the lock buckle mounting seat.

[0005] Furthermore, a first arcuate surface is provided on the lower end surface of the head of the locking tongue, and a second arcuate surface is provided on the upper end surface of the head of the locking buckle to match the first arcuate surface.

[0006] Furthermore, the lock mounting seat includes a mounting base and a mounting block, and the mounting base is provided with bolt locking adjustment vertical through grooves on all four sides, and the bolt locking adjustment vertical through grooves are used to adjust the height of the mounting base fixed to the door frame; the mounting block is installed in the middle of the mounting base, and the middle of the mounting base is provided with a locking adjustment transverse through groove, and the bottom of the mounting block is provided with a bolt hole compatible with the locking adjustment transverse through groove, and the locking adjustment transverse through groove is used to adjust the distance between the mounting block and the edge of the door frame.

[0007] Furthermore, side panels are provided on both sides of the upper end of the mounting base plate, a rotating column is provided between the tail ends of the two side panels, the tail end of the lock buckle is sleeved and fixed in the rotating column, the middle part of the upper end of the mounting base plate and the middle part of the lower end of the lock buckle are provided with mounting slot holes, the elastic floating module is a floating spring, and the two ends of the floating spring are respectively placed in the two mounting slot holes.

[0008] Furthermore, a limiting column is arranged between the front middle parts of the two side plates, the height of the limiting column is higher than the height of the rotating column, and the limiting column is used to limit the rebound height distance of the lock buckle.

[0009] Furthermore, the sound insulation test box includes a test box body and the door locking mechanism, and the door is hingedly fixed to one edge of the door frame of the test box body.

[0010] The invention comprises a lock tongue installed on the door body and a lock catch assembly installed on the door frame, wherein the lock catch assembly comprises a lock catch mounting seat, a lock catch and an elastic floating module, wherein the lock catch mounting seat is fixed on the edge of the door frame, the lock catch is hingedly fixed in the lock catch mounting seat, the elastic floating module is installed in the lock catch mounting seat and is located at the lower end of the lock catch, when the lock tongue is buckled with the lock catch assembly, the lock catch is located on the downward pressing track of the lock tongue, when the lock tongue is pressed down, the lock catch is driven to swing downward to form a flexible lever-type collision, and when the lock catch swings downward, the elastic floating module is compressed, and when the lock tongue is pressed into place, the lock catch rebounds under the elastic force of the elastic floating module to buckle the lock tongue in the lock catch mounting seat.

[0011] The beneficial effects of the utility model are: 1. The door locking mechanism can play a pressing and guiding role for the matching door body through the compression lever design structure of the lock tongue and the lock buckle assembly, and an elastic floating module is used in conjunction with the lock buckle. When the lock tongue hits the lock buckle, it has a flexible collision, which can effectively absorb and decompose energy; 2. The overall structure adopts a quick mold change method, which can be debugged and repaired and replaced off-line without affecting online production testing, that is, by loosening the fixing bolts around the mounting base, the lock buckle assembly can be quickly disassembled and replaced without affecting the test in the box; 3. The bolt locking adjustment vertical through slot and the locking adjustment horizontal through slot can adjust the installation height and position of the lock buckle, and can be compatible with more existing lock buckle structures on the market. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of an existing door locking mechanism;

[0013] Figure 2 It is a structural diagram of the sound insulation test box;

[0014] Figure 3 It is a perspective structural diagram of the door body locking mechanism before it is buckled;

[0015] Figure 4 It is a schematic diagram of the structure after the door locking mechanism is buckled;

[0016] Figure 5 It is a top view of the door body locking mechanism after it is buckled;

[0017] Figure 6 yes Figure 5 Sectional view of AA in the middle;

[0018] Figure 7 This is an exploded view of the lock assembly. DETAILED DESCRIPTION

[0019] like Figures 2 to 7As shown, in this embodiment, the sound insulation test box includes a test box body and a door body locking mechanism. The door body locking mechanism is cast as a whole with stainless steel material, and through stress analysis and calculation of material mechanics, the door body locking mechanism satisfies the pressing force required by the sound insulation test box. The test box body includes a door frame 3 and a door body 1 hingedly fixed to the edge of one side of the door frame 3. The door body locking mechanism includes two lock tongues 2 installed at the upper and lower ends of the door body 1 and two lock components 4 installed at the upper and lower ends of the door frame 3. A push-pull rod is arranged between the two lock tongues 2. The lock tongue 2 and the push-pull rod can adopt the design structure of the existing sound insulation test box. No more description is given here. The lock component 4 includes a lock mounting seat 41, a lock 42 and an elastic floating module 43. The lock mounting seat 41 is fixed to the edge of the door frame 3, the lock 42 is hingedly fixed in the lock mounting seat 41, and the elastic floating module 43 is installed in The lock buckle mounting seat 41 is inside and located at the lower end of the lock buckle 42. When the lock tongue 2 is buckled with the lock buckle assembly 4, the lock buckle 42 is located on the downward pressing track of the lock tongue 2. When the lock tongue 2 is pressed down, it drives the lock buckle 42 to swing downward, forming a flexible lever-type collision. Through the compression lever-type design, it can not only play a pressing and guiding positioning role for the matching door body 1, but also meet the buffering requirements of the hardware suppression vibration of the door body 1 during the rapid closing process. In addition, an elastic floating module 43 is used in conjunction with the lock buckle. When the lock buckle 42 swings downward, the elastic floating module 43 is compressed. When the lock tongue 2 is pressed into place, the lock buckle 42 rebounds under the elastic force of the elastic floating module 43, and the lock tongue 2 is buckled in the lock buckle mounting seat 41, so that the lock tongue 2 can effectively absorb and decompose energy when colliding with the lock buckle 42, and the overall impact force is small, which effectively avoids the product vibration stress from affecting the test effect.

[0020] In this embodiment, the lower end surface of the head of the locking tongue 2 is provided with a first curved surface 21, and the upper end surface of the head of the lock buckle 42 is provided with a second curved surface 421 adapted to the first curved surface 21. This design is more conducive to the flexible collision contact surface between the locking tongue 2 and the lock buckle 42, making the buckling process softer.

[0021] In this embodiment, the lock mounting seat 41 includes a mounting base 411 and a mounting block 412. The mounting base 411 is provided with bolt locking adjustment vertical through grooves 4111 around it. The bolt locking adjustment vertical through grooves 4111 are used to adjust the height of the mounting base 411 fixed to the door frame 3; the mounting block 412 is installed in the middle of the mounting base 411. The middle of the mounting base 411 is provided with a locking adjustment transverse through groove 4112. The bottom of the mounting block 412 is provided with a bolt hole 4121 adapted to the locking adjustment transverse through groove 4112. The locking adjustment transverse through groove 4112 is used to adjust the distance between the mounting block 412 and the edge of the door frame 3, and the mounting can be adjusted by bolts. The installation spacing between the base plate 411 and the mounting block 412; side plates 413 are arranged on both sides of the upper end of the mounting base plate 411, and a rotating column 414 is arranged between the tails of the two side plates 413, and the tail of the lock buckle 42 is sleeved and fixed in the rotating column 414, and the middle part of the upper end of the mounting base plate 411 and the middle part of the lower end of the lock buckle 42 are both provided with mounting slots 415, and the elastic floating module 43 is a floating spring, and the two ends of the floating spring are respectively placed in the two mounting slots 415, this design can effectively adjust the installation position of the lock buckle 42, so that the utility model has strong compatibility, and the lock buckle mounting seat 41 adopts a quick mold change method, which can be debugged and repaired and replaced off-line without affecting the online production test and other characteristics.

[0022] In this embodiment, a limiting column 416 is disposed between the front middle portions of the two side plates 413 . The height of the limiting column 416 is higher than the height of the rotating column 414 . The limiting column 416 is used to limit the rebound height distance of the lock buckle 42 .

[0023] Although the embodiments of the present invention are described with practical solutions, they do not constitute limitations on the meaning of the present invention. For those skilled in the art, it is obvious to modify the implementation scheme and combine it with other solutions based on this description.

Claims

1. A door locking mechanism, comprising a lock tongue (2) mounted on a door body (1) and a lock catch assembly (4) mounted on a door frame (3), characterized in that: The lock assembly (4) comprises a lock mounting seat (41), a lock (42) and an elastic floating module (43); the lock mounting seat (41) is fixed to the edge of the door frame (3); the lock (42) is hinged and fixed in the lock mounting seat (41); the elastic floating module (43) is installed in the lock mounting seat (41) and is located at the lower end of the lock (42); when the lock tongue (2) is buckled with the lock assembly (4), the lock (42) is located on the downward pressing track of the lock tongue (2); when the lock tongue (2) is pressed downward, the lock (42) is driven to swing downward, forming a flexible lever-type collision; and when the lock (42) swings downward, it compresses the elastic floating module (43); when the lock tongue (2) is pressed down into place, the lock (42) rebounds under the elastic force of the elastic floating module (43), and the lock tongue (2) is buckled in the lock mounting seat (41).

2. A door locking mechanism according to claim 1, characterized in that: The lower end surface of the head of the locking tongue (2) is provided with a first arcuate surface (21), and the upper end surface of the head of the locking buckle (42) is provided with a second arcuate surface (421) matched with the first arcuate surface (21).

3. A door locking mechanism according to claim 1, characterized in that: The lock mounting seat (41) comprises a mounting base plate (411) and a mounting block (412); the mounting base plate (411) is provided with bolt locking adjustment vertical through grooves (4111) on all four sides; the bolt locking adjustment vertical through grooves (4111) are used to adjust the height of the mounting base plate (411) fixed to the door frame (3); the mounting block (412) is installed in the middle of the mounting base plate (411); the mounting base plate (411) is provided with a locking adjustment transverse through groove (4112) in the middle; the bottom of the mounting block (412) is provided with a bolt hole (4121) matched with the locking adjustment transverse through groove (4112); the locking adjustment transverse through groove (4112) is used to adjust the distance between the mounting block (412) and the edge of the door frame (3).

4. A door locking mechanism according to claim 3, characterized in that: Side plates (413) are arranged on both sides of the upper end of the installation base plate (411), a rotating column (414) is arranged between the tails of the two side plates (413), the tail of the lock buckle (42) is sleeved and fixed in the rotating column (414), the middle part of the upper end of the installation base plate (411) and the middle part of the lower end of the lock buckle (42) are both provided with installation slots (415), the elastic floating module (43) is a floating spring, and the two ends of the floating spring are respectively placed in the two installation slots (415).

5. A door locking mechanism according to claim 4, characterized in that: A limiting column (416) is arranged between the front middle parts of the two side plates (413), the height of the limiting column (416) is higher than the height of the rotating column (414), and the limiting column (416) is used to limit the rebound height distance of the lock buckle (42).

6. A sound insulation test box, characterized in that: It comprises a test box body and a door locking mechanism as claimed in any one of claims 1 to 5, wherein the door body (1) is hingedly fixed to one edge of a door frame (3) of the test box body.

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