Access hole covering mechanism

Abstract

The utility model relates to an access port covering mechanism which comprises an inner frame, a clamping assembly and a cover plate. The inner frame can be inserted and connected into the access hole; the clamping assembly comprises a first clamping part and a second clamping part, the first clamping part is arranged on the inner frame, and the second clamping part is arranged on the cover plate; and the second clamping part on the cover plate can be clamped with or separated from the first clamping part on the inner frame, so that the cover plate covers or is separated from the access hole. The door has the beneficial effects that when the access hole needs to be closed, the second clamping part on the cover plate can be clamped to the first clamping part on the inner frame, so that the cover plate covers the access hole. When maintenance is needed, the second clamping part on the cover plate can be separated from the first clamping part on the inner frame, so that the whole cover plate is separated from the access hole, the periphery of the access hole is not shielded, the operation space is increased, and the maintenance difficulty is reduced. Meanwhile, connection and separation of the cover plate and the inner frame can be conveniently achieved through cooperation of the first clamping part and the second clamping part, and accurate alignment of the cover plate and the inner frame is not needed.

Description

Technical Field

[0001] The utility model relates to the technical field of inspection openings, in particular to a covering mechanism for an inspection opening. Background Art

[0002] Prefabricated buildings are structures constructed by prefabricating large quantities of building components and accessories in factories, then transporting these components to the construction site for assembly and installation. In recent years, prefabricated buildings have been widely promoted for their high construction efficiency, reliable quality, and superior economic benefits. In prefabricated buildings, walls surrounding various pipes typically feature access hatches to facilitate later inspection and maintenance.

[0003] The cover plate on a conventional hidden inspection opening is generally opened by a lock switch in combination with a hinge or hinge. The cover plate can be flipped upward 90° relative to the inspection opening. Since the cover plate is still close to the inspection opening after opening, the staff need to avoid the cover plate and reach into the inspection opening for inspection during maintenance. If the size of the inspection opening is small, the operating space at the inspection opening will be smaller, which increases the difficulty of maintenance. Utility Model Content

[0004] (1) Technical issues to be solved

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a maintenance opening covering mechanism, which solves the technical problem that when the cover plate provided at the existing maintenance opening is opened, the operating space at the maintenance opening is small, which increases the difficulty of maintenance.

[0006] (2) Technical solution

[0007] In order to achieve the above-mentioned purpose, the main technical solutions adopted by this utility model include:

[0008] The embodiment of the utility model provides an inspection port covering mechanism, comprising an inner frame, a clamping assembly and a cover plate;

[0009] The inner frame can be inserted into and connected to the inspection opening;

[0010] The clamping assembly includes a first clamping portion and a second clamping portion, wherein the first clamping portion is provided on the inner frame and the second clamping portion is provided on the cover plate;

[0011] The second clamping portion on the cover plate can be clamped to or disengaged from the first clamping portion on the inner frame, so that the cover plate covers or disengages from the inspection opening.

[0012] According to the present invention, when the cover plate moves toward the inner frame to be in the first position, the first clamping portion is clamped on the second clamping portion;

[0013] When the cover plate moves toward the inner frame to a second position, the first clamping portion and the second clamping portion are unlocked, and the cover plate can move toward a direction away from the inner frame until the first clamping portion is disengaged from the second clamping portion;

[0014] The gap between the cover plate and the inner frame when the cover plate is in the first position is larger than the gap between the cover plate and the inner frame when the cover plate is in the second position.

[0015] According to the present invention, the first clamping portion is disposed inside the inner frame, and the first clamping portion includes a first clamping unit, the first clamping unit is extended in a direction parallel to the inner frame, and one end of the first clamping unit away from the inner frame is bent to form a hook;

[0016] The second clamping portion is arranged perpendicular to the end surface of the cover plate, and the second clamping portion includes a second clamping unit. A first clamping block and a second clamping block are arranged at intervals along the side wall of the second clamping unit along the extension direction thereof, and the first clamping block is located between the cover plate and the second clamping block; the first clamping block can be slidably connected to the second clamping unit along the extension direction of the second clamping unit;

[0017] When the cover is in the first position, the end surface of the first clamping block and the end surface of the second clamping block respectively press against the side wall and end surface of the hook, and the first clamping portion is clamped on the second clamping portion;

[0018] When the cover is in the second position, the side surface of the first clamping block presses against the end surface of the hook and the end surface of the first clamping block is in contact with the end surface of the second clamping block, the first clamping portion and the second clamping portion are unlocked, and the cover can move away from the inner frame until the first clamping block and the second clamping block are disengaged from the hook.

[0019] According to the present invention, the side surfaces of the first clamping block and the second clamping block are both inclined surfaces;

[0020] The opposite end surfaces of the first clamping block and the second clamping block are parallel, and the end surface of the first clamping block is flush with or protrudes from the end surface of the second clamping block.

[0021] According to the present invention, a slot is provided on the side wall of the second clamping unit, and the first clamping block is slidably connected to the slot along the extension direction of the second clamping unit via a slider;

[0022] An elastic member parallel to the extending direction of the second clamping portion is arranged in the slot, and two ends of the elastic member are respectively fixed on the first clamping block and the side wall of the slot.

[0023] According to the present invention, the inner frame and the cover plate are both elongated structures;

[0024] There are multiple first clamping units, and the multiple first clamping units are continuously arranged along the length direction of a border of the inner frame to form an integral structure;

[0025] There are multiple second clamping units, and the multiple first clamping units are continuously arranged along the length direction of one side of the cover plate to form an integral structure;

[0026] The plurality of first clamping units and the plurality of second clamping units are arranged in a one-to-one correspondence.

[0027] According to the present invention, the number of the first clamping portions is four, and the four first clamping portions are arranged in a ring shape;

[0028] There are four second clamping portions, and the four second clamping portions are arranged in a ring shape;

[0029] The four first clamping portions and the four second clamping portions are arranged in a one-to-one correspondence.

[0030] According to the present invention, the inner frame includes a first frame and a second frame, wherein the second frame is vertically arranged in the first frame; the first frame can be attached to and connected to the inner wall of the inspection port;

[0031] A connecting plate is vertically provided at one end of the first clamping unit close to the inner frame, and the connecting plate can be attached to and detachably connected to the second frame.

[0032] According to the present invention, the cover plate includes a mounting plate and a decorative plate, and two ends of the mounting plate are respectively connected to the decorative plate and the second clamping portion.

[0033] According to the present invention, a handle is vertically provided at one end of the mounting plate close to the decorative plate or at one end of the decorative plate away from the mounting plate.

[0034] (3) Beneficial effects

[0035] The beneficial effects of the present invention are as follows: the inspection opening closing mechanism provided by the present invention allows the second clipping portion on the cover plate to be clipped onto the first clipping portion on the inner frame when the inspection opening needs to be closed, so that the cover plate covers the inspection opening. When maintenance is required, the second clipping portion on the cover plate can be disengaged from the first clipping portion on the inner frame to completely detach the cover plate from the inspection opening, leaving the inspection opening unobstructed, increasing the operating space and reducing the difficulty of maintenance. Furthermore, the cooperation of the first clipping portion and the second clipping portion allows for convenient connection and disconnection of the cover plate and the inner frame, eliminating the need for precise alignment of the cover plate and the inner frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1It is a schematic diagram of the cover plate in the inspection opening covering mechanism of the utility model covering the inspection opening;

[0037] Figure 2 for Figure 1 Schematic diagram of the decomposition;

[0038] Figure 3 for Figure 2 A schematic cross-sectional view of the connection in the lower left corner perpendicular to the paper;

[0039] Figure 4 for Figure 3 A partial cross-sectional view of .

[0040] [Description of Reference Numerals]

[0041] 1: inner frame; 11: first frame; 111: mounting hole; 12: second frame;

[0042] 2: Cover plate; 21: Mounting plate; 22: Decorative plate; 23: Handle;

[0043] 3; Snap-fit ​​assembly; 31: first snap-fit ​​portion; 311: first snap-fit ​​unit; 3111: snap hook; 3112: connecting plate; 32: second snap-fit ​​portion; 321: second snap-fit ​​unit; 3211: first snap block; 3212: second snap block; 3213: slot; 3214: elastic member; 3215: slider. DETAILED DESCRIPTION

[0044] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation methods in conjunction with the accompanying drawings.

[0045] See also Figure 1-4 The embodiment of the present invention provides an inspection port covering mechanism, which includes an inner frame 1, a snap-fit ​​assembly 3 and a cover plate 2.

[0046] The inner frame 1 can be inserted into and connected to the inspection opening.

[0047] The clamping assembly 3 includes a first clamping portion 31 and a second clamping portion 32 . The first clamping portion 31 is provided on the inner frame 1 , and the second clamping portion 32 is provided on the cover plate 2 .

[0048] The second clamping portion 32 on the cover plate 2 can be clamped to or disengaged from the first clamping portion 31 on the inner frame 31 , so that the cover plate 2 covers or disengages the inspection port.

[0049] During use, when the access opening needs to be closed, the second engaging portion 32 on the cover plate 2 is engaged with the first engaging portion 31 on the inner frame 31 to secure the cover plate over the access opening. When maintenance is required, the second engaging portion 32 on the cover plate 2 is disengaged from the first engaging portion 31 on the inner frame 31 to remove the entire cover plate from the access opening. This leaves the access opening unobstructed, increasing operating space and reducing maintenance difficulty. Furthermore, the engagement of the first engaging portion 31 and the second engaging portion 32 securely connect the cover plate 2 and the inner frame 1, eliminating the need for precise alignment of the two.

[0050] Furthermore, when the inspection port needs to be covered, the cover plate 2 is pressed to move the cover plate 2 toward the inner frame 1 to the first position, and the first clamping portion 31 can be clamped onto the second clamping portion 32 to cover the inspection port.

[0051] When the inspection port needs to be opened: press the cover plate 2 to move the cover plate 2 toward the inner frame 1 to the second position, and the first clamping portion 31 and the second clamping portion 32 are unlocked. Then, pull the cover plate 2 in the opposite direction, and the cover plate 2 can move toward the direction away from the inner frame 1 until the first clamping portion 31 disengages from the second clamping portion 32, so that the cover plate 2 is separated from the inspection port.

[0052] The gap between the cover plate 2 and the inner frame 1 when in the first position is greater than the gap between the cover plate 2 and the inner frame 1 when in the second position.

[0053] During use, the first clamping portion 31 and the second clamping portion 32 can be engaged and unlocked by pressing, and after unlocking, the cover plate 2 can be pulled out of the inspection port, making the opening and closing operation of the inspection port more labor-saving and convenient.

[0054] Specifically, the specific structures of the first clamping portion 31 and the second clamping portion 32 are as follows:

[0055] The first engaging portion 31 is disposed inside the inner frame 1 and includes a first engaging unit 311 extending in a direction parallel to the inner frame 1 . One end of the first engaging unit 311 away from the inner frame 1 is bent to form a hook 3111 .

[0056] The second engaging portion 32 is disposed perpendicular to the end surface of the cover plate 2 and includes a second engaging unit 321. A first engaging block 3211 and a second engaging block 3212 are spaced apart along the sidewall of the second engaging unit 321 along its extension direction. The first engaging block 3211 is located between the cover plate 2 and the second engaging block 3212. The first engaging block 3211 is slidably connected to the second engaging unit 321 along its extension direction.

[0057] When the inspection port needs to be closed: press the cover plate 2, the cover plate 2 can move toward the inner frame 1. During this process, the hook 3111 is squeezed and deformed by the second clamping block 3212. When the cover plate 2 is in the first position, the end face of the first clamping block 3211 and the end face of the second clamping block 3212 respectively press against the side wall and end face of the hook 3111, and the first clamping portion 31 is clamped on the second clamping portion 32.

[0058] When the inspection opening needs to be closed, the cover plate 2 is pressed, and the cover plate 2 moves toward the inner frame 1 until it reaches the first position, and then continues to move toward the inner frame 1. During this process, the hook 3111 presses against the side of the first clamping block 3211 and pushes the first clamping block 3211 along the extension direction of the second clamping unit 321 toward the second clamping block 3212. When the cover plate 2 moves toward the inner frame 1 and reaches the second position, the side of the first clamping block 3211 presses against the end face of the hook 3111, and the end face of the first clamping block 3211 abuts against the end face of the second clamping block 3212, and the first clamping portion 31 and the second clamping portion 32 are unlocked. Then, the cover plate 2 is pulled in the reverse direction, and the cover plate 2 can move away from the inner frame 1, and the end face of the hook 3111 can slide relative to each other along the sides of the first clamping block 3211 and the second clamping block 3212 until the first clamping block 3211 and the second clamping block 3212 are separated from the hook 3111, and the first clamping portion 31 and the second clamping portion 32 are unlocked.

[0059] As can be seen from the above, through the above-mentioned arrangement of the first clamping portion 31 and the second clamping portion 32 , the clamping and unlocking of the first clamping portion 31 and the second clamping portion 32 can be conveniently achieved, and the operation is time-saving and labor-saving.

[0060] Specifically, the side surfaces of the first clamping block 3211 and the second clamping block 3212 are both inclined surfaces, which are used to press against the end surface of the hook 3111. The opposing end surfaces of the first clamping block 3211 and the second clamping block 3212 are parallel, and the end surface of the first clamping block 3211 is flush with or protrudes from the end surface of the second clamping block 3212. This prevents the end surface of the second clamping block 3212 from protruding beyond the first clamping block 3211 and becoming stuck on the hook 3111, thereby preventing the cover plate 2 from being separated from the inner frame 1 when the cover plate 2 is in the second position and continues to move away from the inner frame 1.

[0061] Specifically, a slot 3213 is defined on a side wall of the second engaging unit 321 , and the first engaging block 3211 is slidably connected to the slot 3213 along an extending direction of the second engaging unit 321 via a slider 3215 .

[0062] An elastic member 3214 is disposed in the slot 3213 and is parallel to the extending direction of the second engaging portion 32 . Two ends of the elastic member 3214 are fixed to the first engaging block 3211 and the side wall of the slot 3213 , respectively.

[0063] During use, in the initial state, the first clamping block 3211 and the second clamping block 3212 are spaced apart. When the cover plate 2 is in the second position, the end surface of the first clamping block 3211 abuts against the end surface of the second clamping block 3212, and the elastic member 3214 contracts. When the cover plate 2 moves away from the inner frame 1 until the first clamping portion 31 disengages from the second clamping portion 32, the elastic member 3214 rebounds and causes the first clamping block 3211 to return to its original position and disengage from the second clamping block 3212.

[0064] Optionally, the elastic member 3214 is a spring.

[0065] Preferably, the inner frame 1 and the cover plate 2 are both elongated structures.

[0066] Multiple first engaging units 311 are provided, and are arranged continuously along the length of a side frame of the inner frame 1 to form an integral structure. Multiple second engaging units 321 are provided, and are arranged continuously along the length of a side of the cover plate 2 to form an integral structure. The multiple first engaging units 311 and the multiple second engaging units 321 are arranged in a one-to-one correspondence to increase the number of engaging points and improve the stability of the engagement between the two.

[0067] Preferably, there are four first clamping portions 31 arranged in a ring shape. There are four second clamping portions 32 arranged in a ring shape. The four first clamping portions 31 and the four second clamping portions 32 are arranged in a one-to-one correspondence.

[0068] Thus, the cover plate 2 and the inner frame 1 can be clamped on four sides to improve the positioning accuracy between the two, and further increase the number of clamping points to improve the clamping stability between the two.

[0069] Furthermore, the inner frame 1 includes a first frame 11 and a second frame 12, and the second frame 12 is vertically arranged in the first frame 11. The first frame 11 can be attached to and connected to the inner wall of the inspection port for easy assembly.

[0070] A connecting plate 3112 is vertically provided at one end of the first clamping unit 311 close to the inner frame 1 . The connecting plate 3112 can be attached to and detachably connected to the second frame 12 for easy assembly.

[0071] Optionally, a plurality of mounting holes 111 are provided on the first frame 11 , and screws can be passed through the mounting holes 111 to detachably connect to the inspection port.

[0072] Optionally, screws are provided on the connecting plate 3112 to detachably connect the second frame 12. Alternatively, the connecting plate 3112 is welded to the second frame 12.

[0073] Furthermore, the cover plate 2 includes a mounting plate 21 and a decorative plate 22. The mounting plate 21 is connected to the decorative plate 22 and the second clip portion 32 at either end. The mounting plate 21 supports the second clip portion 32. The connecting surface between the mounting plate 21 and the decorative plate 22 is flat, allowing the decorative plate 22 to be designed to match the material and color of the surrounding inspection opening, thereby enhancing the aesthetics of the cover plate 2.

[0074] Specifically, a handle 23 is vertically provided at one end of the mounting plate 21 close to the decorative plate 22 or at one end of the decorative plate 22 away from the mounting plate 21 , so as to facilitate pulling the cover plate 2 through the handle 23 .

[0075] Preferably, when a handle 23 is provided at one end of the mounting plate 21 close to the decorative plate 22, two handles 23 are provided on both sides of the mounting plate 21. The two handles 23 protrude from both sides of the decorative plate 22 to facilitate pulling the cover plate 2 with both hands, making the operation more labor-saving.

[0076] Preferably, weight-reducing holes are provided on the mounting plate 21 .

[0077] Optionally, the second clamping portion 32 is screwed or welded to the mounting plate 21 .

[0078] In the present invention, unless otherwise expressly specified or limited, when a first feature is “above” or “below” a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, when a first feature is “above,” “above,” or “above” a second feature, it may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is “below,” “below,” or “below” a second feature, it may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0079] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0080] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A maintenance opening covering mechanism, characterized in that: It comprises an inner frame (1), a snap-on assembly (3) and a cover plate (2); The inner frame (1) can be inserted into and connected to the inspection opening; The clamping assembly (3) comprises a first clamping portion (31) and a second clamping portion (32), wherein the first clamping portion (31) is arranged on the inner frame (1), and the second clamping portion (32) is arranged on the cover plate (2); The second clamping portion (32) on the cover plate (2) can be clamped to or disengaged from the first clamping portion (31) on the inner frame (31), so that the cover plate (2) covers or disengages from the inspection port.

2. The inspection opening covering mechanism according to claim 1, characterized in that ； When the cover plate (2) moves in a direction close to the inner frame (1) to a first position, the first clamping portion (31) is clamped onto the second clamping portion (32); When the cover plate (2) moves in a direction close to the inner frame (1) to a second position, the first clamping portion (31) and the second clamping portion (32) are unlocked, and the cover plate (2) can move in a direction away from the inner frame (1) until the first clamping portion (31) is disengaged from the second clamping portion (32); The gap between the cover plate (2) and the inner frame (1) when in the first position is larger than the gap between the cover plate (2) and the inner frame (1) when in the second position.

3. The inspection opening covering mechanism according to claim 2, It is characterized by: The first clamping portion (31) is arranged inside the inner frame (1), and the first clamping portion (31) includes a first clamping unit (311). The first clamping unit (311) is extended in a direction parallel to the inner frame (1), and one end of the first clamping unit (311) away from the inner frame (1) is bent to form a hook (3111); The second clamping portion (32) is arranged perpendicular to the end surface of the cover plate (2), and the second clamping portion (32) comprises a second clamping unit (321), and a first clamping block (3211) and a second clamping block (3212) are arranged on the side wall of the second clamping unit (321) along its extension direction, and the first clamping block (3211) is located between the cover plate (2) and the second clamping block (3212); the first clamping block (3211) can be slidably connected to the second clamping unit (321) along the extension direction of the second clamping unit (321); When the cover plate (2) is at the first position, the end surface of the first clamping block (3211) and the end surface of the second clamping block (3212) respectively press against the side wall and end surface of the hook (3111), and the first clamping portion (31) is clamped onto the second clamping portion (32); When the cover plate (2) is at the second position, the side surface of the first clamping block (3211) presses against the end surface of the hook (3111) and the end surface of the first clamping block (3211) fits against the end surface of the second clamping block (3212), the first clamping portion (31) and the second clamping portion (32) are unlocked, and the cover plate (2) can move in a direction away from the inner frame (1) until the first clamping block (3211) and the second clamping block (3212) are disengaged from the hook (3111).

4. The inspection opening covering mechanism according to claim 3, wherein: The side surfaces of the first clamping block (3211) and the second clamping block (3212) are both inclined surfaces; The relative end faces of the first clamping block (3211) and the second clamping block (3212) are parallel, and the end face of the first clamping block (3211) is flush with or protrudes from the end face of the second clamping block (3212).

5. The inspection opening covering mechanism according to claim 3, wherein: A slot (3213) is provided on the side wall of the second clamping unit (321), and the first clamping block (3211) is slidably connected to the slot (3213) along the extension direction of the second clamping unit (321) via a slider (3215); An elastic member (3214) is provided in the slot (3213) and is parallel to the extension direction of the second clamping portion (32), and two ends of the elastic member (3214) are respectively fixed to the first clamping block (3211) and the side wall of the slot (3213).

6. The inspection opening covering mechanism according to claim 3, wherein: The inner frame (1) and the cover plate (2) are both elongated structures; The first clamping units (311) are provided in a plurality, and the plurality of first clamping units (311) are continuously arranged along the length direction of a frame of the inner frame (1) to form an integral structure; The second clamping units (321) are provided in a plurality, and the plurality of first clamping units (311) are continuously arranged along the length direction of one side of the cover plate (2) to form an integral structure; The plurality of first clamping units (311) and the plurality of second clamping units (321) are arranged in a one-to-one correspondence.

7. The inspection opening covering mechanism according to claim 6, wherein: The number of the first clamping parts (31) is four, and the four first clamping parts (31) are arranged in a ring shape; The number of the second clamping portions (32) is four, and the four second clamping portions (32) are arranged in a ring shape; The four first clamping portions (31) and the four second clamping portions (32) are arranged in a one-to-one correspondence.

8. The inspection opening covering mechanism according to claim 3, wherein: The inner frame (1) comprises a first frame (11) and a second frame (12), wherein the second frame (12) is vertically arranged in the first frame (11); the first frame (11) can be attached to and connected to the inner wall of the inspection port; A connecting plate (3112) is vertically arranged at one end of the first clamping unit (311) close to the inner frame (1), and the connecting plate (3112) can be attached to and detachably connected to the second frame (12).

9. The inspection opening covering mechanism according to claim 1, wherein: The cover plate (2) comprises a mounting plate (21) and a decorative plate (22), and two ends of the mounting plate (21) are respectively connected to the decorative plate (22) and the second clamping portion (32).

10. The inspection opening covering mechanism according to claim 9, wherein: A handle (23) is vertically provided at one end of the mounting plate (21) close to the decorative plate (22) or at one end of the decorative plate (22) away from the mounting plate (21).

Images