Door supporting piece for leak detector cart
By combining the inner locking block, the outer locking block, and the support structure, the problem that the cabinet door support structure cannot limit the opening angle is solved, and reliable control and buffering of the opening angle are achieved, making it suitable for scenarios with limited space.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIASHUO BIOTECHNOLOGY (SUZHOU) CO LTD
- Filing Date
- 2025-05-21
- Publication Date
- 2026-04-24
AI Technical Summary
The existing cabinet door support structure cannot effectively limit the opening angle, which may cause the cabinet door to swing when it is open, and cannot meet the requirements of scenarios with strict requirements for the opening angle.
It adopts an inner locking block, an outer locking block, and a support structure, including an inner support arm and an outer support arm. The curved surface and the rotation notch form a physical limit to restrict the opening angle of the cabinet door, and the tension spring provides elastic cushioning.
It effectively limits the opening angle of the cabinet door, preventing excessive angles due to inertia or misoperation, reducing component wear, and improving ease of use and safety.
Smart Images

Figure CN224161584U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of cabinet door support structures, and in particular to a door support component for a leak detector trolley. Background Technology
[0002] A glove leak detector is a device specifically designed to detect whether protective gloves used in hospitals, pharmaceutical factories, or laboratories are torn. Its main working principle is to inject compressed air into the glove; once the preset pressure is reached, air injection is stopped, and after a period of time, the pressure inside the glove is observed to determine if the glove is intact and undamaged. Glove leak detectors sometimes need to be placed or installed on a movable trolley, the trolley's door typically hinged to the cabinet.
[0003] A search revealed Chinese Patent Publication No. CN211473743U, which discloses an electrical control cabinet door opening and positioning device, including a cabinet door, a lower door frame, and a sliding rod; the cabinet door and the lower door frame are hinged together by a door hinge; a connecting lug is welded to the lower part of the cabinet door; a connecting hole is provided at one end of the sliding rod; the sliding rod is fixed to the connecting lug through the connecting hole; a sliding groove is provided along the length of the sliding rod; a sliding rod limiting hole is provided on the sliding groove; the sliding rod limiting hole is located at the end of the sliding groove near the lower door frame.
[0004] The existing door opening support structure between the cabinet body and the cabinet door mainly uses the cooperation of sliding rods, door supports and limit blocks to achieve door opening positioning. Its focus is on preventing the cabinet door from swinging when it is open. It does not explicitly mention the limitation on the opening angle, which may not meet the needs of scenarios with strict requirements on the opening angle.
[0005] In view of the above-mentioned shortcomings, the designer actively researched and innovated in order to create a door support component for a leak detector cart, making it more industrially valuable. Utility Model Content
[0006] To solve the above-mentioned technical problems, the purpose of this utility model is to provide a door support component for a leak detector cart.
[0007] To achieve the above objectives, the present invention adopts the following technical solution:
[0008] A door support for a leak detector cart includes an inner locking block installed on the cart cabinet, an outer locking block installed on the cart cabinet door, and a support structure installed between the inner locking block and the outer locking block.
[0009] The support structure, from left to right, includes an inner support arm and an outer support arm, with the outer support arm installed inside the outer support plate.
[0010] The inner locking block is installed on the left side of the inner support arm via a connector. The inner arm rotating part on the right side of the inner support arm is installed on the left side of the outer support plate via a connector. The inner arm rotating part is a circular plate structure. On the outer support arm to the right of the inner arm rotating part, the first arc surface and the second arc surface of the outer arm are arranged sequentially from left to right. The outer locking block passes through the outer support plate via a connector and is connected to the right side of the outer support arm on the left side.
[0011] As a further improvement of this utility model, the inner locking block is located in the horizontal plane, and the inner locking block is installed on the inner support arm through the inner connecting frame.
[0012] As a further improvement of this utility model, the outer locking block is located in a vertical plane, and the outer locking block is installed on the outer support arm through an outer connecting frame.
[0013] As a further improvement of this utility model, a protective frame is installed on the front side of the outer support arm, and the protective frame on the right side of the inner arm rotating part is installed on the outer support plate through a connector.
[0014] As a further improvement of this utility model, the protruding sheath locking part on the sheath frame is mounted on the outer support plate through a connector.
[0015] As a further improvement of this utility model, an outer arm cavity for accommodating a tension spring is provided on the outer support arm on the rear side of the sheath frame, and the tension spring is installed on the connector for connecting the sheath frame and the outer support plate.
[0016] As a further improvement of this utility model, a rotation notch is provided on the front side of the inner arm rotating part, and the rotation notch is engaged with the left side of the protective frame.
[0017] As a further improvement of this utility model, an arc-shaped transition end is provided between the first arc-shaped surface of the outer arm and the second arc-shaped surface of the outer arm.
[0018] By means of the above solution, this utility model has at least the following advantages:
[0019] The first and second arc-shaped surfaces of the outer support arm of this utility model form a physical limit through their relative rotational trajectories with the inner arm rotating part and the outer support plate. When the cabinet door is opened to a near preset angle, the curvature change of the arc-shaped surface will force the rotational resistance to increase, preventing further opening and closing, and avoiding excessive angle due to inertia or misoperation.
[0020] The rotating notch on the front side of the inner arm rotating part of this utility model engages with the left side of the protective frame to form a mechanical stop at the rotating fulcrum, further limiting the maximum opening and closing angle and ensuring the reliability of angle control.
[0021] This invention is applicable to scenarios with limited space, avoiding collisions with surrounding objects when the cabinet doors are fully open, or the risk of the cabinet's center of gravity shifting or tipping over due to excessive opening angle.
[0022] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the following are the preferred embodiments of this utility model and are described in detail with reference to the accompanying drawings. Attached Figure Description
[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0024] Figure 1 This is a structural schematic diagram of a door support component for a leak detector cart according to this utility model;
[0025] Figure 2 yes Figure 1 A structural diagram of the other side;
[0026] Figure 3 yes Figure 2 Schematic diagram of the structure of the inner and outer support plates and the outer support arm;
[0027] Figure 4 yes Figure 2 A schematic diagram of the structure on the other side of the middle and outer support plates and the outer support arm;
[0028] Figure 5 yes Figure 2 A schematic diagram of the structure of the inner support arm and the sheath frame.
[0029] The meanings of the labels in the figures are as follows.
[0030] 1. Inner locking block, 2. Inner connecting frame, 3. Inner support arm, 4. Connector, 5. Outer support plate, 6. Sheath frame, 7. Sheath locking part, 8. Outer support arm, 9. Outer locking block, 10. Inner arm rotating part, 11. First arc surface of outer arm, 12. Second arc surface of outer arm, 13. Outer arm cavity, 14. Tension spring, 15. Rotation notch, 16. Detailed Implementation
[0031] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.
[0032] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0033] The first embodiment of this utility model:
[0034] like Figures 1-2 As shown, the basic application scenario of this embodiment includes a trolley cabinet and a trolley cabinet door installed on the trolley cabinet via hinges and other structures. The support structure of the door support component for the leak detector trolley in this embodiment mainly includes an inner locking block 1, an inner support arm 3, an outer support plate 5, a protective frame 6, an outer support arm 8, and an outer locking block 9.
[0035] like Figure 1 The installation structure of the inner locking block 1 and the outer locking block 9:
[0036] The inner locking block 1 is located in the horizontal plane. The left side of the inner locking block 1 is installed on the trolley cabinet, and the right side of the inner locking block 1 is rotatably installed on the left side of the inner support arm 3 through the inner connecting frame 2 and the connecting piece 4.
[0037] The outer locking block 9 is located in the vertical plane. The right side of the outer locking block 9 is installed on the trolley cabinet door, and the left side of the outer locking block 9 is rotatably installed on the right side of the outer support arm 8 through the outer connecting frame 10 and the connecting piece 4.
[0038] The inner locking block is installed on the cabinet body, and the outer locking block is installed on the cabinet door. The support is rigidly connected to the cabinet body and cabinet door by bolts and other connecting parts 4 to ensure the stability of force transmission.
[0039] like Figure 2 The connection structure between the inner support arm 3 and the outer support arm 8:
[0040] The middle part of the outer support arm 8 is installed inside the outer support plate 5 through the connector 4. A protective frame 6 is installed on the front side of the outer support arm 8. The protruding protective locking part 7 on the protective frame 6 is installed on the outer support plate 5 through the connector 4.
[0041] The inner arm rotating part 11 on the right side of the inner support arm 3 is mounted on the left side of the outer support plate 5 via a connector 4. The inner arm rotating part 11 is as follows: Figure 2 The circular plate-shaped structure shown has a first arc-shaped surface 12 and a second arc-shaped surface 13 of the outer arm arranged sequentially from left to right on the outer support arm 8 on the right side of the inner arm rotating part 11.
[0042] In addition, an arc-shaped transition end is provided between the first arc-shaped surface 12 and the second arc-shaped surface 13 of the outer arm, which allows the inner arm rotating part 11 to better achieve the transition between the first arc-shaped surface 12 and the second arc-shaped surface 13 of the outer arm.
[0043] like Figure 3 The first arc-shaped surface 12 and the second arc-shaped surface 13 of the outer support arm 8 form a physical limit through their relative rotational trajectories with the inner arm rotating part 11 and the outer support plate 5. When the cabinet door is opened to nearly 90 degrees, the change in curvature of the arc-shaped surface will force an increase in rotational resistance, preventing further opening and closing, and avoiding excessive angles (such as exceeding 90 degrees) due to inertia or misoperation.
[0044] The inner arm rotating part 11 adopts a circular plate structure and is rotatably connected to the outer support plate through a connector to form a flexible rotation fulcrum, while avoiding structural loosening due to shaking.
[0045] like Figure 4 A rotation notch 16 is provided on the front side of the inner arm rotating part 11, and the rotation notch 16 is engaged with the left side of the sheath frame 6.
[0046] The rotation notch 16 on the front side of the inner arm rotating part 11 engages with the left side of the sheath frame 6 to form a mechanical stop at the rotation fulcrum, further limiting the maximum opening and closing angle and ensuring the reliability of angle control.
[0047] like Figure 5 An outer arm cavity 14 for accommodating a tension spring 15 is provided on the outer support arm 8 on the rear side of the sheath frame 6, and the tension spring 15 is installed on the connector 4 for connecting the sheath frame 6 and the outer support plate 5.
[0048] The tension spring 15 between the sheath frame 6 and the outer support plate 5 provides elastic tension during opening and closing, buffering instantaneous impact forces (such as the inertia when closing the door), reducing component wear, and extending the life of the support components. At the same time, the return force of the tension spring 15 can help keep the cabinet door at a specified angle (such as a half-open state), improving ease of use.
[0049] The protective frame 6 on the front side of the outer support arm 8 can protect the internal tension spring 15 and rotating parts from dust and foreign objects, reduce the probability of failure, and improve environmental adaptability (such as humid and dusty scenes).
[0050] This embodiment has a compact structure, with the support structure installed in the gap between the cabinet and the cabinet door, without taking up additional external space. It is suitable for scenarios where installation volume is sensitive (such as embedded cabinets and mobile devices).
[0051] The left-right, front-back, and up-down directions shown in this article are all based on the instructions attached. Figure 1 As shown in the image.
[0052] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0053] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0054] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A door support for a leak detector cart, comprising an inner locking block (1) installed on the cart cabinet, an outer locking block (9) installed on the cart cabinet door, and a support structure installed between the inner locking block (1) and the outer locking block (9); Its features are: The support structure includes an inner support arm (3) and an outer support arm (8) from left to right, and the outer support arm (8) is installed inside the outer support plate (5); The inner locking block (1) is installed on the left side of the inner support arm (3) via the connector (4). The inner arm rotating part (11) on the right side of the inner support arm (3) is installed on the left side of the outer support plate (5) via the connector (4). The inner arm rotating part (11) is a circular plate structure. The outer support arm (8) on the right side of the inner arm rotating part (11) is provided with the first arc surface (12) and the second arc surface (13) of the outer arm from left to right. The outer locking block (9) passes through the outer support plate (5) via the connector (4) and is connected to the right side of the outer support arm (8) on the left side.
2. The door support for a leak detector cart as described in claim 1, characterized in that, The inner locking block (1) is located in the horizontal plane, and the inner locking block (1) is installed on the inner support arm (3) through the inner connecting frame (2).
3. The door support component for a leak detector cart as described in claim 1, characterized in that, The outer locking block (9) is located in a vertical plane, and the outer locking block (9) is mounted on the outer support arm (8) through the outer connecting frame (10).
4. The door support for a leak detector cart as described in claim 1, characterized in that, A sheath frame (6) is installed on the front side of the outer support arm (8), and the sheath frame (6) on the right side of the inner arm rotating part (11) is installed on the outer support plate (5) through a connector (4).
5. A door support for a leak detector cart as described in claim 4, characterized in that, The sheath locking part (7) protruding on the sheath frame (6) is installed on the outer support plate (5) through the connector (4).
6. A door support for a leak detector cart as described in claim 4, characterized in that, An outer arm cavity (14) for accommodating a tension spring (15) is provided on the outer support arm (8) on the rear side of the sheath frame (6), and the tension spring (15) is installed on the connector (4) for connecting the sheath frame (6) and the outer support plate (5).
7. A door support for a leak detector cart as described in claim 4, characterized in that, A rotation notch (16) is provided on the front side of the inner arm rotating part (11), and the rotation notch (16) is engaged with the left side of the sheath frame (6).
8. The door support for a leak detector cart as described in claim 1, characterized in that, An arc-shaped transition end is provided between the first arc surface (12) and the second arc surface (13) of the outer arm.
Citation Information
Patent Citations
Electric control cabinet door opening positioning device
CN211473743U