Hidden access hole of tube well

Abstract

The utility model belongs to the technical field of fabricated buildings, and particularly relates to a hidden access hole of a tube well. The inner frame and the cover plate in the access hole are detachably fixed through a snap fastener assembly; a pressing assembly in the snap fastener assembly is fixed to the cover plate, an expansion snap fastener seat is fixed to the inner frame, and a gap is reserved between a supporting block and a spring bolt in the pressing assembly in the axial direction. A buckle in the expansion buckle seat forms a through hole coaxial with the adjusting cylinder, the diameter of the through hole can be changed under the action of external force, and in a natural state, the diameter of the through hole is smaller than the maximum outer diameter of the spring bolt; when the pressing assembly and the expansion buckle base are locked, the buckle is located in the gap. Therefore, according to the access hole, when the cover plate and the inner frame need to be fixed, the cover plate can be mounted only by aligning and pressing to lock the pressing assembly and the expansion buckle seat, and the pressing assembly and the expansion buckle seat can be unlocked only by pressing again if the cover plate needs to be dismounted, so that the cover plate and the inner frame are more convenient to mount and dismount, and the maintenance efficiency is higher.

Description

Technical Field

[0001] The utility model belongs to the technical field of assembled buildings, and in particular relates to a hidden inspection opening for a pipe well. Background Art

[0002] Prefabricated buildings refer to buildings that are prefabricated in factories and then transported to construction sites for assembly and installation. In recent years, prefabricated buildings have been vigorously promoted due to their high construction efficiency, reliable construction quality and superior economic benefits. Among them, the walls surrounding various pipes in prefabricated buildings generally have inspection ports reserved for later inspection and maintenance.

[0003] However, the existing inspection openings are generally opened by locking switches with hinges or hinges, so a locking structure needs to be set on the surface of the inspection opening, and some inspection openings will have large flanges around them. If the space is small, the inspection opening door will easily make the operating space even smaller after it is opened, affecting normal inspection work, and the locking structure is cumbersome to open, affecting work efficiency. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, the utility model provides a hidden inspection opening for a pipe well, thereby solving the technical problems that after the inspection opening door is opened, the operating space is narrow, affecting normal maintenance work, and the locking structure is cumbersome to open, affecting work efficiency.

[0006] (II) Technical solution

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

[0008] The embodiment of the utility model provides a hidden inspection opening of a pipe well, comprising a cover plate and an inner frame, wherein the inner frame and the cover plate are detachably fixed by a snap button assembly; the snap button assembly comprises a pressing assembly and an expansion buckle seat, wherein the pressing assembly is fixed to the cover plate, and the expansion buckle seat is fixed to the inner frame, the pressing assembly comprises a positioning pin, a support block and a locking tongue, wherein the support block and the locking tongue are fixedly sleeved on the positioning pin, and a gap is left axially between the support block and the locking tongue; the expansion buckle seat comprises an adjusting cylinder and a buckle, wherein the buckle is arranged at the opening end of the adjusting cylinder and forms a through hole coaxial with the adjusting cylinder, wherein the through hole is located inside the adjusting cylinder, and the diameter of the through hole can be changed under the action of an external force, and in a natural state, the diameter of the through hole is smaller than the maximum outer diameter of the locking tongue; when the pressing assembly and the expansion buckle seat are locked, the buckle is located in the gap.

[0009] Furthermore, a plurality of grooves are provided on the adjusting cylinder to divide the adjusting cylinder into a plurality of parts, and the plurality of parts are connected to form a whole through one end away from the open end of the adjusting cylinder, and the open end of each part close to the adjusting cylinder is bent toward the inner side of the adjusting cylinder to form a reverse hook, and all the reverse hooks form a buckle; when the pressing assembly cooperates with the expansion buckle seat, the locking tongue applies pressure to all the reverse hooks, so that the plurality of parts are bent in the direction away from the center of the adjusting cylinder, and the diameter of the through hole changes from small to large, until all the reverse hooks are reset after being located in the gap, and the diameter of the through hole changes from large to small.

[0010] Furthermore, the distance of the gap is greater than or equal to the distance between an end of the locking tongue close to the open end of the adjusting cylinder and the open end of the adjusting cylinder when the pressing assembly and the expansion buckle seat are locked.

[0011] Furthermore, the cover plate includes a plate body, and the pressing assembly also includes a first connecting plate, which is fixed to one end of the positioning pin located on the support block, and the pressing assembly and the cover plate are fixed by fixing the first connecting plate to the plate body; the inner frame includes a fixing strip parallel to the plate body, and the fixing strip forms a hole adapted to the pipe well, and the expansion buckle seat also includes a second connecting plate, which is fixed to the end of the adjusting cylinder away from the buckle, and the expansion buckle seat and the inner frame are fixed by fixing the second connecting plate to the fixing strip.

[0012] Furthermore, a first positioning hole is opened on the second connecting plate, and a second positioning hole is opened on the fixing strip. When the expansion buckle seat is fixed to the inner frame, the first positioning hole and the second positioning hole are coaxial; when the pressing assembly is locked with the expansion buckle seat, the positioning pin is passed through the first positioning hole and the second positioning hole in sequence.

[0013] Furthermore, the inner frame also includes a frame body arranged around the outer side of the fixing strip, and the frame body is provided with a plurality of fixing holes for fixing the inner frame to the pipe well.

[0014] Furthermore, the cover plate also includes handles arranged on both sides of the plate body, and the upper and lower ends of the handles are flush with the upper and lower ends of the plate body.

[0015] Furthermore, it also includes a decorative panel, a plate body and handles on both sides form a groove, and the decorative panel is embedded in the groove.

[0016] Furthermore, the lock tongue is conical, the major diameter of the lock tongue is close to the support block, and the support block is cylindrical.

[0017] Furthermore, the outer diameter of the support block is greater than or equal to the maximum outer diameter of the locking tongue.

[0018] (III) Beneficial effects

[0019] The beneficial effects of the utility model are:

[0020] The utility model provides a hidden inspection opening for a pipe well. Since a snap assembly including a pressing assembly and an expansion buckle seat is arranged between the cover plate and the inner frame, the pressing assembly is fixed to the cover plate, and the expansion buckle seat is fixed to the inner frame. When the cover plate and the inner frame need to be fixed, the pressing assembly and the expansion buckle seat can be locked by aligning and pressing, and the installation of the cover plate can be completed. If the cover plate needs to be removed, the pressing assembly and the expansion buckle seat can be unlocked by pressing again, and then the cover plate can be pulled out.

[0021] Compared with the prior art, it makes the installation and disassembly of the cover plate and the inner frame more convenient, and at the same time does not occupy the maintenance space, so that the maintenance efficiency is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the structure for hiding the inspection opening of the tube well;

[0023] Figure 2 Exploded diagram of hidden access opening for tube well;

[0024] Figure 3 is a schematic diagram of the structure of a snap button assembly;

[0025] Figure 4 This is a schematic diagram of the structure when the hidden inspection opening of the pipe well is locked;

[0026] Figure 5 This is a structural schematic diagram of the process of unlocking the hidden inspection opening of the pipe shaft.

[0027] [Description of Reference Numerals]

[0028] 1: cover plate; 11: plate body; 12: handle;

[0029] 2: inner frame; 21: fixing strip; 211: second positioning hole; 22: frame; 221: fixing hole;

[0030] 3: snap assembly; 31: pressing assembly; 311: positioning pin; 312: support block; 313: locking tongue; 314: gap; 315: first connecting plate; 316: spring; 32: expansion buckle seat; 321: adjustment cylinder; 3211: split; 3212: reverse hook; 324: second connecting plate; 3241: first positioning hole;

[0031] 4: Decorative panel. DETAILED DESCRIPTION

[0032] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation modes in conjunction with the accompanying drawings.

[0033] like Figure 1-5As shown, the utility model provides a hidden inspection opening for a pipe well, comprising a cover plate 1, an inner frame 2 and a decorative panel 4. The inner frame 2 and the cover plate 1 are detachably fixed by a snap assembly 3.

[0034] Among them, Figure 2-5 As shown, the snap assembly 3 includes a pressing assembly 31 and an expansion snap seat 32 . The pressing assembly 31 is fixed to the cover plate 1 , and the expansion snap seat 32 is fixed to the inner frame 2 .

[0035] Specifically, Figure 3-5 As shown, the pressing assembly 31 includes a positioning latch 311, a support block 312, a locking tongue 313 and a first connecting plate 315. The support block 312 and the locking tongue 313 are fixedly sleeved on the positioning latch 311. The first connecting plate 315 is fixed to one end of the positioning latch 311 located at the support block 312. A gap 314 is left between the support block 312 and the locking tongue 313 along the axial direction. A spring 316 is sleeved on the area of ​​the positioning latch 311 located below the locking tongue 313. The cover plate 1 includes a plate body 11, and the pressing assembly 31 and the cover plate 1 are fixed by fixing the first connecting plate 315 to the plate body 11.

[0036] The expansion buckle seat 32 includes an adjustment tube 321, a buckle and a second connecting plate 324. The buckle is arranged at the open end of the adjustment tube 321 and forms a through hole coaxial with the adjustment tube 321. The through hole is located inside the adjustment tube 321. The diameter of the through hole can be changed under the action of external force. In the natural state, the diameter of the through hole is smaller than the maximum outer diameter of the locking tongue 313. The second connecting plate 324 is fixed to the end of the adjustment tube 321 away from the buckle. The inner frame 2 includes a fixing strip 21 parallel to the plate body 11 and a frame body 22 arranged around the outer side of the fixing strip 21. The fixing strip 21 surrounds a hole adapted to the pipe well. The frame body 22 is provided with a plurality of fixing holes 221 for fixing the inner frame 2 to the pipe well. The expansion buckle seat 32 and the inner frame 2 are fixed by fixing the second connecting plate 324 to the fixing strip 21.

[0037] When the pressing assembly 31 and the expansion buckle seat 32 are locked, the positioning pin 311 is inserted into the through hole so that it is located in the adjustment tube 321, and the buckle is located in the gap 314. When the pressing assembly 31 and the expansion buckle seat 32 are unlocked, the support block 312 expands the through hole to position the buckle outside the lock tongue 313, and the spring 316 sleeved on the positioning pin 311 instantly pops the pressing assembly 31 out of the expansion buckle seat 32, bringing the lock tongue 313 out of the adjustment tube 321.

[0038] Preferably, the distance of the gap 314 is greater than or equal to the distance between one end of the locking tongue 313 close to the open end of the adjusting cylinder 321 and the open end of the adjusting cylinder 321 when the pressing assembly 31 and the expansion buckle seat 32 are locked.

[0039] The locking tongue 313 is conical, and the major diameter of the locking tongue 313 is close to the supporting block 312 , and the supporting block 312 is cylindrical. The outer diameter of the supporting block 312 is greater than or equal to the maximum outer diameter of the locking tongue 313 .

[0040] In this embodiment, a plurality of grooves are provided on the adjusting cylinder 321 to divide the adjusting cylinder 321 into a plurality of split bodies 3211, and the plurality of split bodies 3211 are connected to form a whole through an end away from the open end of the adjusting cylinder 321, and the open end of each split body 3211 close to the adjusting cylinder 321 is bent toward the inner side of the adjusting cylinder 321 to form a reverse hook 3212, and all the reverse hooks 3212 form a buckle.

[0041] When the pressing assembly 31 cooperates with the expansion buckle seat 32, the locking tongue 313 applies pressure to all the reverse hooks 3212, causing the plurality of split bodies 3211 to bend in a direction away from the center of the adjusting cylinder 321, and the diameter of the through hole changes from small to large, until all the reverse hooks 3212 are located in the gap 314 and reset, and the diameter of the through hole changes from large to small.

[0042] like Figure 2 , Figure 4-5 As shown, in order to make the cover plate 1 and the inner frame 2 completely fall into place, a first positioning hole 3241 is opened on the second connecting plate 324, and a second positioning hole 211 is opened on the fixing strip 21. When the expansion buckle seat 32 is fixed to the inner frame 2, the first positioning hole 3241 and the second positioning hole 211 are coaxial. When the pressing assembly 31 and the expansion buckle seat 32 are locked, the positioning pin 311 is sequentially inserted into the first positioning hole 3241 and the second positioning hole 211.

[0043] like Figure 1-2 , Figure 4-5 As shown, the cover plate 1 further includes handles 12 disposed on both sides of the plate body 11 , and the upper and lower ends of the handles 12 are flush with the upper and lower ends of the plate body 11 .

[0044] When the cover plate 1 needs to be installed: the pressing assembly 31 is pressed, so that the locking tongue 313 exerts force to cause the adjusting cylinder 321 of the expansion buckle seat 32 to produce elastic deformation, and finally locks with the buckle of the expansion buckle seat 32. The support block 312 of the pressing assembly 31 prevents the cover plate 1 from moving further toward the inner frame 2. At the same time, the positioning pin 311 of the pressing assembly 31 passes through the inner frame 2 through the first positioning hole 3241 and the second positioning hole 211, so that the cover plate 1 and the inner frame 2 are completely in place.

[0045] When the cover 1 needs to be removed: hold the handle 12 of the cover 1 with both hands and apply force inward, the adjustment cylinder 321 of the expansion buckle seat 32 is squeezed by the support block 312 of the pressing component 31 to produce elastic deformation, and the buckle is located on the outside of the lock tongue 313. At this time, the spring 316 sleeved on the positioning pin 311 has been compressed and accumulated force, which can instantly bounce the pressing component 31 off the expansion buckle seat 32, and then hold the handle 12 of the cover 1 with both hands and pull it outward, so that the cover 1 can be removed as a whole.

[0046] In addition, if Figure 1-2 , Figure 4-5 As shown, the plate body 11 and the handles 12 on both sides form a groove, and the decorative panel 4 is embedded in the groove.

[0047] In the description of the present utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0048] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] In the present utility model, unless otherwise clearly specified and limited, when a first feature is “on” or “below” a second feature, it may be that the first and second features are in direct contact, or 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 be that the first feature is directly above or obliquely above the second feature, or it may simply mean that the first feature is higher in level than the second feature. When a first feature is “below”, “below” or “below” a second feature, it may be that the first feature is directly below or obliquely below the second feature, or it may simply mean that the first feature is lower in level than the second feature.

[0050] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" etc. 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 utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0051] 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 of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A hidden inspection opening of a pipe well, characterized in that: It comprises a cover plate (1) and an inner frame (2), wherein the inner frame (2) and the cover plate (1) are detachably fixed via a snap assembly (3); The snap assembly (3) comprises a pressing assembly (31) and an expansion buckle seat (32); the pressing assembly (31) is fixed to the cover plate (1); the expansion buckle seat (32) is fixed to the inner frame (2); the pressing assembly (31) comprises a positioning latch (311), a support block (312) and a locking tongue (313); the support block (312) and the locking tongue (313) are fixedly sleeved on the positioning latch (311); a gap (314) is left between the support block (312) and the locking tongue (313) along the axial direction; The expansion buckle seat (32) comprises an adjustment tube (321) and a buckle, wherein the buckle is arranged at the open end of the adjustment tube (321) and forms a through hole coaxial with the adjustment tube (321), wherein the through hole is located inside the adjustment tube (321), and the diameter of the through hole can be changed under the action of an external force, and in a natural state, the diameter of the through hole is smaller than the maximum outer diameter of the locking tongue (313); When the pressing assembly (31) and the expansion buckle seat (32) are locked, the buckle is located in the gap (314).

2. The hidden inspection opening of the pipe well according to claim 1 is characterized in that: The adjusting tube (321) is provided with a plurality of grooves so as to divide the adjusting tube (321) into a plurality of parts (3211); the plurality of parts (3211) are connected to form a whole through an end away from the opening end of the adjusting tube (321); the opening end of each part (3211) close to the adjusting tube (321) is bent toward the inner side of the adjusting tube (321) to form a reverse hook (3212); and all the reverse hooks (3212) form the buckle; When the pressing assembly (31) cooperates with the expansion buckle seat (32), the locking tongue (313) applies pressure to all the reverse hooks (3212), causing the plurality of split bodies (3211) to bend in a direction away from the center of the adjustment tube (321), and the diameter of the through hole changes from small to large until all the reverse hooks (3212) are located in the gap (314) and reset, and the diameter of the through hole changes from large to small.

3. The hidden inspection opening of a pipe well according to claim 1 is characterized in that: The distance of the gap (314) is greater than or equal to the distance between one end of the locking tongue (313) close to the opening end of the adjusting cylinder (321) and the opening end of the adjusting cylinder (321) when the pressing assembly (31) and the expansion buckle seat (32) are locked.

4. The hidden inspection opening of a pipe well according to claim 1 is characterized in that: The cover plate (1) comprises a plate body (11), and the pressing assembly (31) further comprises a first connecting plate (315), wherein the first connecting plate (315) is fixed to one end of the positioning pin (311) located on the supporting block (312), and the pressing assembly (31) and the cover plate (1) are fixed by fixing the first connecting plate (315) and the plate body (11); The inner frame (2) includes a fixing strip (21) parallel to the plate body (11), and the fixing strip (21) surrounds a hole adapted to the pipe well. The expansion buckle seat (32) also includes a second connecting plate (324), and the second connecting plate (324) is fixed to an end of the adjustment cylinder (321) away from the buckle. The expansion buckle seat (32) and the inner frame (2) are fixed by fixing the second connecting plate (324) and the fixing strip (21).

5. The hidden inspection opening of the pipe well according to claim 4 is characterized in that: The second connecting plate (324) is provided with a first positioning hole (3241), the fixing strip (21) is provided with a second positioning hole (211), and when the expansion buckle seat (32) is fixed to the inner frame (2), the first positioning hole (3241) and the second positioning hole (211) are coaxial; When the pressing assembly (31) is locked with the expansion buckle seat (32), the positioning pin (311) is sequentially inserted into the first positioning hole (3241) and the second positioning hole (211).

6. The hidden inspection opening of a pipe well according to claim 4, characterized in that: The inner frame (2) further comprises a frame body (22) arranged around the outer side of the fixing strip (21), and the frame body (22) is provided with a plurality of fixing holes (221) for fixing the inner frame (2) to the pipe well.

7. The hidden inspection opening of a pipe well according to claim 4, characterized in that: The cover plate (1) further comprises handles (12) arranged on both sides of the plate body (11), and the upper and lower ends of the handles (12) are both flush with the upper and lower ends of the plate body (11).

8. The hidden inspection opening of a pipe well according to claim 7, characterized in that: It also comprises a decorative panel (4), wherein the panel body (11) and the handles (12) on both sides form a groove, and the decorative panel (4) is embedded in the groove.

9. The hidden inspection opening of a pipe well according to claim 1, characterized in that: The locking tongue (313) is conical in shape, the major diameter of the locking tongue (313) is close to the supporting block (312), and the supporting block (312) is cylindrical in shape.

10. The hidden inspection opening of a pipe well according to claim 1, characterized in that: The outer diameter of the support block (312) is greater than or equal to the maximum outer diameter of the locking tongue (313).

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