Door lock device for experiment cabinet body

By designing a door lock device with a lock body mounting base, a lock clamp mechanism, and a door stopper on the experimental cabinet, the problem of loose door lock structure was solved, achieving stable locking performance and ease of use.

CN224078895UActive Publication Date: 2026-04-03GUANGDONG BANZHOU LAB EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-24
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

The existing door lock structure of the experimental cabinet is prone to loosening and decreased locking stability after a period of use, which affects the ease of use.

Method used

A door lock device is designed, including a lock body mounting base, a lock clamping mechanism, and a door stop pin. The lock clamping mechanism is equipped with a reset member to form an elastic clamping space. The door stop pin is movably connected to the lock clamping mechanism. The reset member achieves a stable door stop structure, thereby enhancing the stability and durability of the lock body.

Benefits of technology

This improves the overall durability and practicality of the door lock device, ensuring that the door lock maintains stable locking performance during long-term use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a door lock device for an experiment cabinet body, which comprises a lock body mounting seat and a lock body assembly arranged on the lock body mounting seat, the lock body assembly comprises a lock clamp mechanism and a door touch nail piece, the door touch nail piece is movably connected with the lock clamp mechanism, and the lock clamp mechanism is provided with a reset piece; according to the door lock device for the experiment cabinet body, the lock clamping mechanism and the door stop nail piece are arranged, the door stop nail piece can form a stable door stop structure on the lock clamping mechanism through the reset piece, the structural arrangement is flexible and stable, and the overall durability and practicability of the door lock device are improved.
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Description

Technical Field

[0001] This utility model relates to the field of laboratory equipment design, specifically to a door lock device for laboratory cabinets with good door lock stability. Background Technology

[0002] As we all know, laboratory cabinets are common experimental equipment and materials used in laboratories. These cabinets are frequently used, and the design of their door locks is a crucial technology. Common laboratory cabinet door locks utilize either torsion springs or magnetic closures. After a period of use, torsion spring locks may become slightly loose, and while magnetic closures are convenient, their overall locking stability is insufficient. Therefore, both types of locks experience a gradual decrease in stability over extended periods, leading to inconvenience in locking and unloading and impacting the usability of the laboratory cabinets. Thus, a door lock device for laboratory cabinets is needed that offers high stability, a reset function, a robust structure, and ease of use. Utility Model Content

[0003] In view of this, the purpose of this utility model is to provide a door lock device for experimental cabinets that has good door lock stability and is easy to use.

[0004] To achieve the purpose of this utility model, this utility model provides a door lock device for an experimental cabinet, including a lock body mounting base and a lock body assembly disposed on the lock body mounting base. The lock body assembly includes a locking mechanism and a door catch pin. The door catch pin is movably connected to the locking mechanism. The locking mechanism is provided with a reset member. The reset member forms an elastic clamping space on the locking mechanism. The elastic clamping space is used to accommodate a part of the door catch pin body. The other part of the door catch pin body is connected to the mounting cabinet.

[0005] Preferably, the locking mechanism further includes a locking body, which is a lock body that is integrally arranged in an inverted U-shape. One end of the locking body is an open end, and an outward V-shaped opening is formed on the open end. The outward V-shaped opening extends inward to form an elastic clamping space, and a concave groove is provided in the middle of the clamping space.

[0006] Preferably, a protrusion is provided at the connection between the concave groove in the middle of the clamping space and the outward V-shaped opening, that is, the outward V-shaped opening, the protrusion, and the concave groove are integrally formed to create a clamping space with protrusions and concavities.

[0007] Preferably, the other end of the locking body is an elliptical end, and rectangular grooves are provided on both sides of the outer surface of the locking body. The rectangular grooves are used to connect the reset component.

[0008] Preferably, the locking body includes a locking single piece, the locking single piece having a first locking single piece and a second locking single piece, the first locking single piece and the second locking single piece being rotatably connected relative to each other to form an inverted U-shaped locking body.

[0009] Preferably, one end of the locking clip unit is an arc-shaped end face with a connecting circular hole, and the other end is a transverse L-shaped abutment end.

[0010] Preferably, the lock body mounting base is provided with a lock body mounting position, which is located in the middle area of ​​the lock body mounting base. The lock body mounting base is also provided with fixed connection positions on both sides, and the fixed connection positions are provided with connecting countersunk holes.

[0011] Preferably, the reset component is a telescopic elastic component, which is a metal spring body. The reset component includes a first reset component and a second reset component, which are respectively disposed on rectangular groove positions on both sides of the outer surface of the lock clamp body. One end of the reset component is fixedly connected to the groove wall of the rectangular groove position, and the other end is abutted against the wall surface of the lock body mounting position. That is, the reset component is accommodated in the reset space formed between the rectangular groove position and the lock body mounting position.

[0012] Preferably, the middle part of the lock body mounting position is used to install the lock clamp body, and the lower edge of the mounting position is provided with an open end that communicates with the outward V-shaped opening. On both sides of the open end are provided limiting end posts for limiting and abutting the first lock clamp piece and the second lock clamp piece.

[0013] Preferably, the door catch is T-shaped and has a connecting catch body and a catch body connecting seat. The connecting catch body and the catch body connecting seat are integrally formed and connected, and the connecting catch body is correspondingly matched and connected to the clamping space.

[0014] The beneficial effects of this utility model are as follows: This utility model provides a door lock device for an experimental cabinet. A lock body assembly is provided on the lock body mounting base. The lock body assembly includes a locking clamp mechanism and a door stop pin. The door stop pin is movably connected to the locking clamp mechanism. The locking clamp mechanism is provided with a reset member. The reset member forms an elastic clamping space on the locking clamp mechanism. The elastic clamping space is used to accommodate a part of the door stop pin body. The other part of the door stop pin body is connected to the mounting cabinet. The locking clamp mechanism and door stop pin provided by this utility model can form a stable door stop structure on the locking clamp mechanism through the reset member. The structure is flexible and stable, improving the overall durability and practicality of the door lock device. Attached Figure Description

[0015] The above and other objects, features, and advantages of this invention will become clearer through a more detailed description of the preferred embodiments shown in the accompanying drawings. The same reference numerals indicate the same parts throughout the drawings, and the drawings are not intentionally drawn to scale with actual dimensions; the focus is on illustrating the gist of this invention.

[0016] Figure 1 This is a schematic diagram of a preferred embodiment of a door lock device for an experimental cabinet according to the present invention;

[0017] Figure 2 This is a plan view of a door lock device for an experimental cabinet according to the present invention;

[0018] Figure 3 This is a schematic diagram from another angle of the door lock device for an experimental cabinet according to the present invention.

[0019] In the diagram: 1. Lock body mounting base; 10. Lock body mounting position; 2. Lock clamping mechanism; 20. Clamping space; 3. Door stop pin; 31. Connecting stop pin body; 32. Pin body connecting seat; 4. Reset component; 41. First reset component; 42. Second reset component; 5. Lock clamp body; 51. Opening; 52. Concave groove; 53. Protrusion; 54. First lock clamp single piece; 55. Second lock clamp single piece; 56. Abutting end; 6. Groove position; 7. Limiting end post; 11. Connecting countersunk hole. Detailed Implementation

[0020] To facilitate understanding of this utility model, a more comprehensive description will be given below with reference to the accompanying drawings.

[0021] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to and integrated with the other component, or there may be an intervening component present. The terms "mounted," "one end," "the other end," and similar expressions used in this document are for illustrative purposes only.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this applies. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0023] like Figure 1-3As shown, this utility model provides a door lock device for an experimental cabinet, including a lock body mounting base 1 and a lock body assembly disposed on the lock body mounting base 1. The lock body assembly includes a locking clamping mechanism 2 and a door catch pin 3. The door catch pin 3 is movably connected to the locking clamping mechanism 2. The locking clamping mechanism 2 is provided with a reset member 4. The reset member 4 forms an elastic clamping space 20 on the locking clamping mechanism 2. The elastic clamping space is also a high-elasticity insertion space, which facilitates the insertion and locking of the door catch pin. The elastic clamping space is used to accommodate a part of the door catch pin body. The part of the door catch pin body is the part of the door catch pin body used to cooperate with the locking clamping mechanism for locking. The other part of the door catch pin body is connected to the mounting cabinet. The other part of the door catch pin body specifically refers to the part of the door catch pin body installed on the mounting surface of the cabinet.

[0024] refer to Figure 1-3 As shown, in a further preferred embodiment, the locking mechanism 2 is further provided with a locking body 5, which is a lock body with an overall inverted U-shape. One end of the locking body 5 is an open end, and an outward V-shaped opening 51 is formed on the open end. The outward V-shaped opening facilitates the insertion of the door stopper. The outward V-shaped opening 51 extends inward to form an elastic clamping space 20. A concave groove 52 is provided in the middle of the clamping space 20. The extended elastic clamping space and the concave groove 52 on the wall of the clamping space are for corresponding to the insertion and locking of the door stopper.

[0025] refer to Figure 1-3 As shown, in the preferred embodiment, a protrusion 53 is provided at the connection between the concave groove 52 in the middle of the clamping space 20 and the outward V-shaped opening. That is, the outward V-shaped opening 51, the protrusion 53, and the concave groove 52 are integrally formed to form a clamping space 20 with protrusions and concave positions. The clamping space 20 with protrusions and concave positions is designed to match the shape characteristics of the door stopper, enhance the stability of the door stopper after locking, and lock the door stopper in the clamping space with protrusions and concave positions.

[0026] refer to Figure 1-3 As shown, in a further preferred embodiment, the other end of the locking body 5 is an elliptical end, and rectangular grooves 6 are provided on both sides of the outer surface of the locking body 5. The rectangular grooves 6 are used to connect the reset component, which facilitates the connection of the reset component and strengthens the overall structural integrity of the locking mechanism.

[0027] refer to Figure 1-3As shown, in a further preferred embodiment, the lock clamp body 5 includes a lock clamp piece, which has a first lock clamp piece 54 and a second lock clamp piece 55. The first lock clamp piece 54 and the second lock clamp piece 55 are rotatably connected to each other to form an inverted U-shaped lock body. The upper ends of the first lock clamp piece 54 and the second lock clamp piece 55 are provided with connecting round holes, and they can be rotatably connected by a connecting shaft or a shaft pin. After connection, an inverted U-shaped lock clamp body is formed, and the connection structure is set up stably.

[0028] refer to Figure 1-3 As shown, in a further preferred embodiment, one end of the lock clip single piece is an arc-shaped end face with a connecting round hole on the arc-shaped end face, and the structure is similar to an F-shape. The other end is a horizontal L-shaped abutment end 56. When the reset member is connected to the rectangular groove position 6, the L-shaped abutment end 56 is provided to cooperate with the reset member and abut against the lower two sides of the lock body mounting position.

[0029] refer to Figure 1-3 As shown, in a further preferred embodiment, the lock body mounting base 1 is provided with a lock body mounting position 10, which is located in the middle area of ​​the lock body mounting base. The lock body mounting base 1 is also provided with fixed connection positions on both sides. The fixed connection positions are provided with connection countersunk holes 11. The connection countersunk holes 11 are provided for mounting on the cabinet by hexagonal cap nails or connection sheath nails, which facilitates installation and connection.

[0030] refer to Figure 1-3 As shown, in a further preferred embodiment, the reset member 4 is a telescopic elastic member, which can be a metal spring. Specifically, in this embodiment, it can be a stainless steel spring. The reset member 4 is provided with a first reset member 41 and a second reset member 42, which are respectively disposed on the rectangular groove positions on both sides of the outer surface of the lock clamp body. One end of the reset member is fixedly connected to the groove wall of the rectangular groove position 6, and the other end is abutted against the wall surface of the lock body mounting position. That is, the reset member 4 is housed in the reset space formed between the rectangular groove position 6 and the lock body mounting position, and works with the two lock clamp single pieces to compress and rebound the stainless steel spring, resulting in a stable structure.

[0031] refer to Figure 1-3As shown, in a further preferred embodiment, the middle part of the lock body mounting position 10 is used to install the lock clamp body. The lower edge of the mounting position is provided with an open end that communicates with the outward V-shaped opening. On both sides of the open end are provided limiting end posts 7 for limiting and abutting the first lock clamp piece and the second lock clamp piece. The limiting end posts 7 are provided to cooperate and abut with the transverse L-shaped abutting ends 56 of the two lock clamp pieces. When locking, when the door hitch is inserted into the clamping space under the action of external force, the stainless steel spring is compressed. At this time, the transverse L-shaped abutting ends 56 of the lock clamp piece abutting against the limiting end post 7 will leave the limiting end post and move behind the limiting end post. When unlocking, the lock clamp body is elastic, and the hitch is pulled out from the clamping space under the action of external force. At this time, the lock clamp body is reset with the movement of the stainless steel spring, and the transverse L-shaped abutting ends 56 of the lock clamp piece abut against the limiting end post 7 again.

[0032] refer to Figure 1-3 As shown, in a further preferred embodiment, the door stopper 3 is T-shaped. The door stopper 3 is provided with a connecting nail body 31 and a nail body connecting seat 32. The connecting nail body 31 and the nail body connecting seat 32 are integrally formed and connected. The integrally formed connection can enhance the overall structural strength of the door stopper. The connecting nail body and the clamping space are correspondingly matched and connected. The external shape of the connecting nail body 31 is correspondingly connected to the clamping space with protrusions and recesses. The front end of the connecting nail body 31 has a protruding insertion end.

[0033] The beneficial effects of this utility model are as follows: This utility model provides a door lock device for an experimental cabinet. A lock body assembly is provided on the lock body mounting base. The lock body assembly includes a locking mechanism and a door catch pin. The door catch pin is movably connected to the locking mechanism. The locking mechanism is provided with a reset member. The reset member forms an elastic clamping space on the locking mechanism. The elastic clamping space is used to accommodate a part of the door catch pin. The other part of the door catch pin is connected to the mounting cabinet. The locking mechanism and door catch pin provided by this utility model can form a stable door catch structure on the locking mechanism through the reset member. The structure is flexible and stable, which improves the overall durability and practicality of the door lock device.

[0034] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0035] In the description of this specification, the references to terms such as "preferred embodiment," "another embodiment," "other embodiment," or "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0036] The above embodiments only illustrate several implementation methods of the utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A door lock apparatus for a fume hood, characterized by: The application relates to a lock body mounting seat and a lock body assembly arranged on the lock body mounting seat, wherein the lock body assembly comprises a lock clamping mechanism and a door bumping pin, the door bumping pin is movably connected with the lock clamping mechanism, the lock clamping mechanism is provided with a reset member, the reset member forms an elastic clamping space on the lock clamping mechanism, a part of the pin body of the door bumping pin is arranged in the elastic clamping space, and the other part of the pin body of the door bumping pin is connected with a cabinet body.

2. The door lock apparatus for a fume hood according to claim 1, wherein The lock clamping mechanism is further provided with a lock clamping body, the lock clamping body is a lock body arranged in an overall inverted U shape, one end of the lock clamping body is an open end, an outer eight-shaped opening is formed on the open end, the outer eight-shaped opening extends inward to form the elastic clamping space, and a concave groove is arranged in the middle of the clamping space.

3. The door lock apparatus for a fume hood according to claim 2, wherein A convex part is arranged between the concave groove in the middle of the clamping space and the outer eight-shaped opening, that is, the outer eight-shaped opening, the convex part and the concave groove are integrally formed, and the clamping space is formed with the convex part and the concave part.

4. The door lock apparatus for a fume hood according to claim 2, wherein The other end of the lock clamping body is an oval face end, rectangular recessed groove positions are arranged on the two sides of the outer surface of the lock clamping body, and the rectangular recessed groove positions are used for connecting the reset member.

5. The door lock apparatus for a fume hood as defined in claim 2 wherein, The lock clamping body comprises a lock clamping single body, the lock clamping single body is provided with a first lock clamping single body and a second lock clamping single body, the first lock clamping single body and the second lock clamping single body are oppositely rotatably connected to form the lock body arranged in an inverted U shape.

6. The door lock apparatus for a fume hood as defined in claim 5, wherein One end of the lock clamping single body is an arc-shaped end face, a connecting circular hole is arranged on the arc-shaped end face, and the other end is a transverse L-shaped abutting end.

7. The door lock apparatus for a fume hood as defined in claim 1 wherein, A lock body mounting position is arranged on the lock body mounting seat, the lock body mounting position is a middle region position on the lock body mounting seat, fixed connecting positions are further arranged on the two sides of the lock body mounting seat, and connecting counterbores are arranged on the fixed connecting positions.

8. The door latch apparatus for a fume hood as defined in claim 1 wherein, The reset member is a telescopic elastic member, the telescopic elastic member is a metal spring body, the reset member is provided with a first reset member and a second reset member, and the first reset member and the second reset member are arranged on the rectangular recessed groove positions on the two sides of the outer surface of the lock clamping body; one end of the reset member is fixedly connected with the groove wall of the rectangular recessed groove position, the other end of the reset member is abutted and connected with the wall surface of the lock body mounting position, that is, the reset member is arranged in a reset space formed between the rectangular recessed groove position and the lock body mounting position.

9. The door lock apparatus for a fume hood as defined in claim 7 wherein, The middle part of the lock body mounting position is used for mounting the lock clamping body, an open end penetrating through the outer eight-shaped opening is arranged on the lower edge of the mounting position, and limiting end columns for limiting and abutting the first lock clamping single body and the second lock clamping single body are arranged on the two sides of the open end.

10. The door latch apparatus for a fume hood as defined in claim 1 wherein, The door bumping pin is in a T shape, is provided with a connecting bumping pin body and a pin body connecting seat, and the connecting bumping pin body and the pin body connecting seat are integrally formed and connected, the connecting bumping pin body is correspondingly matched and connected with the clamping space.