Pre-buried device for tamping and sinking prevention of backfill soil

Abstract

The utility model relates to the technical field of building foundation construction, in particular to an embedded device for backfill tamping and sinking prevention, which comprises a base, a protective shell and a connecting component. The base is in a cylinder shape with the top open and the bottom closed, the upper end of the base is provided with a tongue-and-groove part, a plurality of square through holes are evenly formed in the side edge of the base, and clamping blocks are arranged in the square through holes in a sliding fit mode. The protective shell comprises a shell body and a sleeve; the shell is cylindrical and is in sliding fit with the tongue-and-groove part; the sleeve is located in the center of the shell and fixedly connected through a plurality of connecting pieces. The connecting assembly comprises a push rod, a connecting rod and an adapter, the push rod is connected with the clamping block, the adapter is installed on the sleeve, and the two ends of the connecting rod are rotationally connected with the push rod and the adapter respectively. According to the pre-buried device for backfill tamping and sinking prevention, the base with the closed bottom is designed, the protection shell is matched, the interior of the whole pre-buried structure can be effectively prevented from entering soil, and the technical problem is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of building foundation construction, in particular to a pre-embedded device for backfill soil compaction and anti-sinking. Background Art

[0002] Backfill refers to the compacted soil returned after the foundation and other below-ground works are completed during construction. In the construction process, it is often necessary to arrange embedded structures in the foundation pit, and then backfill the soil after the embedded structures are arranged. However, the backfilled soil needs to be compacted by a rammer, which makes it easy for the embedded parts to sink.

[0003] The technical solution disclosed in the Chinese patent with authorization announcement number CN216108579U is provided with anti-sinking tentacles, and uses the right touch plate and the left touch plate to reduce the contact area in the longitudinal direction when the push rod moves outward, and gradually increase the contact area in the longitudinal direction when there is a downward trend, thereby improving the anti-sinking ability of the top building and avoiding the situation where the building still sinks to a large extent after the existing anti-sinking structure is embedded.

[0004] However, the device still has shortcomings: the soil can easily get stuck in the longitudinal groove on the anti-sinking shell, resulting in a certain resistance to the downward movement of the anti-sinking shell, and as the anti-sinking shell cooperates with the connecting ring to squeeze the soil, the soil in the longitudinal channel gradually hardens, which in turn causes the connecting ring to sink in the subsequent process of pressing down the anti-sinking shell. Summary of the invention

[0005] The present application provides a pre-embedded device for backfill soil compaction and anti-sinking, aiming to solve at least one of the above-mentioned technical problems.

[0006] The present application provides a pre-embedded device for backfill soil compaction and anti-sinking, which is characterized by comprising:

[0007] The base is a cylindrical shape with an open top and a closed bottom, the upper end of the base has a tongue and groove portion, and the side of the base is evenly provided with a plurality of square through holes, and a card block is slidably fitted in the square through holes;

[0008] A protective shell, the protective shell comprising a shell and a sleeve; the shell is cylindrical and slidably matches the tongue and groove portion; the sleeve is located at the center of the shell and is fixedly connected by a plurality of connecting pieces;

[0009] The connecting assembly comprises a push rod, a connecting rod and an adapter seat, the push rod is connected to the clamping block, the adapter seat is installed on the sleeve, and two ends of the connecting rod are rotatably connected to the push rod and the adapter seat respectively.

[0010] The above-mentioned pre-embedded device for tamping backfill soil to prevent settlement effectively prevents soil from entering the entire pre-embedded structure by designing a base with a closed bottom and cooperating with a protective shell, thus solving the above technical problems.

[0011] In the technical solution of an embodiment, the clamping block is wedge-shaped with the tip facing outwards.

[0012] In the technical solution of an embodiment, a sliding table is fixedly arranged at the center of the base. The sliding table is cylindrical, and the sleeve is sleeved on the sliding table and is in sliding fit with it.

[0013] In the technical solution of an embodiment, the lower end of the housing has a soil-breaking blade.

[0014] In the technical solution of an embodiment, several first air grooves are provided at the top of the housing.

[0015] In the technical solution of an embodiment, several second air grooves are provided at the top of the sleeve.

[0016] In the technical solution of an embodiment, several clamping openings are provided in the rabbet portion, and the clamping openings are in clamping fit with the corresponding connecting pieces.

[0017] In the technical solution of an embodiment, a bolt is arranged on the lower surface of the connecting piece, a socket is provided in the clamping opening, and the bolt is in plug-in fit with the socket.

[0018] The above description is only an overview of the technical solution of the present application. In order to be able to understand the technical means of the present application more clearly, it can be implemented according to the content of the specification. And in order to make the above and other purposes, features and advantages of the present application more obvious and understandable, the following specifically gives the specific implementation manners of the present application. Brief Description of the Drawings

[0019] The drawings in the present application are used to show the preferred implementation manners, which are convenient for those of ordinary skill in the art to clearly understand various other advantages and benefits, and should not be considered as a limitation to the present application. Moreover, in all the drawings, the same reference numerals are used to represent the same components.

[0020] Figure 1 It is an exploded schematic view of the pre-embedded device for tamping backfill soil to prevent settlement in an embodiment of the present application.

[0021] Figure 2 It is a three-dimensional schematic view of the protective shell in an embodiment of the present application.

[0022] Figure 3 It is an overall schematic view of the pre-embedded device for tamping backfill soil to prevent settlement in an embodiment of the present application.

[0023] Explanation of the Reference Numerals in the Drawings:

[0024] 10 - Base; 11 - Tongue-and-groove part; 12 - Square through-hole; 13 - Block; 14 - Bayonet; 15 - Socket

[0025] 20 - Slide table

[0026] 31 - Housing; 32 - Sleeve; 33 - Connecting piece; 34 - First air groove; 35 - Second air groove; 36 - Bolt; 37 - Earth-breaking blade

[0027] 41 - Push rod; 42 - Connecting rod; 43 - Adapter seat Specific implementation manner

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0029] Referring to "embodiments" herein means that specific features, structures or characteristics described in conjunction with the embodiments can be included in at least one embodiment of the present application. The phrase appears in various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0030] In the description of the embodiments of the present application, the meaning of "a number of" is two or more (including two), unless otherwise clearly and specifically defined. Technical terms such as "center", "longitudinal", "lateral", "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the embodiments of the present application.

[0031] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0032] See Figures 1-3 As shown, the embodiment of the present application provides a pre-embedded device for preventing backfill soil from sinking after ramming, which includes a base 10, a protective shell, and several connecting components. The base 10 is a cylindrical shape with an open top and a closed bottom. The upper end of the base 10 is a rabbet portion 11, and several square through holes 12 are evenly arranged on the side wall of the base 10. A clamping block 13 is slidably fitted in the square through hole 12. The protective shell includes a shell body 31 and a sleeve 32. The shell body 31 is cylindrical and is slidably fitted with the rabbet portion 11. The sleeve 32 is located at the center of the shell body 31 and is fixedly connected through several connecting pieces 33. The number of connecting components is the same as the number of clamping blocks 13 and is used to connect the clamping block 13 and the sleeve 32. The connecting component includes a push rod 41, a connecting rod 42, and a transfer seat 43. The push rod 41 is connected to the clamping block 13, the transfer seat 43 is installed on the outer wall of the sleeve 32, and both ends of the connecting rod 42 are rotatably connected to the push rod 41 and the transfer seat 43 respectively. During use, place the device with the bottom plane of the base 10 facing down in the foundation pit and adjust its level. Subsequently, backfill the soil until the upper surface of the soil does not exceed the upper end surface of the shell body 31, and then use a rammer to ram. During the ramming process, the rammer gradually presses down the shell body 31 and the sleeve 32. During the downward sliding of the sleeve 32, the push rod 41 is pushed by the change in the angle of the connecting rod 42, so that the clamping block 13 is pushed out of the square through hole 12 and inserted into the soil. When the upper end surfaces of the shell body 31, the sleeve 32, and the soil are pressed down to be flush with the upper surface of the base 10, stop ramming. The above-mentioned pre-embedded device for preventing backfill soil from sinking after ramming can effectively prevent soil from entering the entire pre-embedded structure by designing the base 10 with a closed bottom and cooperating with the protective shell, thus solving the above technical problems. Moreover, by designing structures such as the sleeve 32, the push rod 41, the connecting rod 42, and the transfer seat 43, the clamping block 13 matches the shape and slides radially, so that when the clamping block 13 extends, the external soil will not enter the device and will not hinder the downward sliding of the shell body 31, further preventing the entire device from sinking during the soil ramming process.

[0033] It should be noted that the square through hole 12 can be square or rectangular. The outer contour of the clamping block 13 is slightly smaller than the square through hole 12, and there is a clearance fit with the square through hole 12 to facilitate the sliding of the clamping block 13 in the square through hole 12.

[0034] It should be noted that the inner diameter of the cylindrical shell body 31 has a clearance fit with the rabbet portion 11 to facilitate the sliding fit between the shell body 31 and the rabbet portion 11. Among them, the height of the shell body 31 is the same as the height of the rabbet portion 11.

[0035] It should be noted that the sleeve 32 being located at the center of the shell body 31 means that the sleeve 32 is located inside the shell body 31 and is coaxially arranged. The sleeve 32 and the shell body 31 are connected through several connecting pieces 33, and several connecting pieces 33 are preferably evenly arranged in a circular array.

[0036] It should be noted that the end of the push rod 41 is connected to the end of the block 13 to form an extension of the block 13 , and the outer contour of the push rod 41 is smaller than or equal to the outer contour of the block 13 .

[0037] It should be noted that both ends of the connecting rod 42 are rotatably connected to the push rod 41 and the adapter 43 respectively, wherein the rotatable connection method can be connected through a rotating shaft or a hinge, as long as the connection forms rotation in a single direction.

[0038] In some embodiments, the block 13 is designed to be wedge-shaped with the tip facing outward. The size of the thick end of the wedge matches the square through hole 12, and the lower surface of the wedge-shaped block 13 contacts the bottom of the square through hole 12, and the inclined surface of the wedge-shaped block 13 is located at the top, so that the block 13 can be inserted into the soil more smoothly and quickly.

[0039] In some embodiments, a slide 20 is added to the embedded device for backfill soil compaction and anti-sinking. The slide 20 is fixed at the center of the base 10 and is coaxially arranged with the base 10, the sleeve 32, etc. The slide 20 is cylindrical and matches the inner diameter of the sleeve 32. When in use, the sleeve 32 is sleeved on the slide 20 and slides with it. By adding the slide 20 in the center, first, it plays a role in strengthening the structure, second, it plays a role in supporting, and third, it is used to stabilize the sleeve 32 to prevent the sleeve 32 from deformation and displacement.

[0040] See also Figure 2 and Figure 3 As shown, in some embodiments, the lower end of the housing 31 has a soil-breaking blade 37, which is also annular. By adding the soil-breaking blade 37, the downward pressure resistance of the housing 31 can be reduced, and the soil between the base 10 and the housing 31 can be squeezed out to prevent caking.

[0041] In some embodiments, the top of the shell 31 has a plurality of first air grooves 34, and the plurality of first air grooves 34 are preferably distributed in a uniform circular array. A plurality of second air grooves 35 may also be provided on the top of the sleeve 32, and the plurality of second air grooves 35 are preferably also distributed in a uniform circular array. It is understood that the first air grooves 34 and the second air grooves 35 may also be provided at the upper ends of the shell 31 and the sleeve 32 at the same time, as a preference. The main function of the air groove is to facilitate the discharge of the air inside the device and reduce noise and resistance when the tamping machine tamps the top of the shell 31 and the sleeve 32.

[0042] In some embodiments, a plurality of bayonet slots 14 are formed in the rabbet portion 11. The number, position, size, etc. of the bayonet slots 14 are all matched with the connecting member 33, and the bayonet slots 14 are in snap-fit connection with the corresponding connecting member 33. The design of the bayonet slots 14 creates space for the connecting member 33. When the connecting member 33 is stuck in the bayonet slots 14, the upper end surface of the housing 31 will not exceed the rabbet portion 11 and the foundation surface. Moreover, the snap-fit structure of the designed bayonet slots 14 and the connecting member 33 can play a positioning role and prevent relative rotation after the bayonet slots 14 and the connecting member 33 are snap-connected.

[0043] Furthermore, a pin 36 can be provided on the lower surface of the connecting member 33, and a socket 15 is formed in the bayonet slot 14. The pin 36 is in plug-in fit with the socket 15. The plug-in design of the pin 36 and the socket 15 serves to position and guide on the one hand.

[0044] Especially when the cross-sectional shape of the installation table 2 is cylindrical, in order to prevent the housing 31 and the sleeve 32 from twisting during the sliding process and causing the connecting member 33 to break, the pin 36 is added, and the pin 36 is used in cooperation with the socket 15 to limit the housing 31 and the sleeve 32. The bayonet slot 14 is convenient for the connecting member 33 to be snapped in and prevents the upper end surface of the housing 31 from exceeding the foundation surface.

[0045] It should be noted that here it is preferred that the connecting member 33 has a square rod structure and the bayonet slot 14 is also a square groove, which can play a role in preventing rotation.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be covered within the scope of the claims and the description of the present application. In particular, as long as there is no conflict, the technical features mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. An embedded device for preventing backfill soil from tamping and sinking, characterized in that, Comprising: A base (10), the base (10) being a cylindrical shape with an open top and a closed bottom, the upper end of the base (10) having a rabbet portion (11), and a plurality of square through-holes (12) evenly formed on the side of the base (10), a clamping block (13) being slidably fitted in the square through-hole (12); A protective housing, the protective housing including a housing body (31) and a sleeve (32); the housing body (31) being cylindrical and slidably fitted with the rabbet portion (11); the sleeve (32) being located at the center of the housing body (31) and fixedly connected by a plurality of connecting members (33); A connecting assembly, the connecting assembly including a push rod (41), a connecting rod (42) and a transfer seat (43), the push rod (41) being connected to the clamping block (13), the transfer seat (43) being installed on the sleeve (32), and the two ends of the connecting rod (42) being rotatably connected to the push rod (41) and the transfer seat (43) respectively.

2. The embedded device for preventing backfill soil from sinking by ramming according to claim 1, characterized in that: The clamping block (13) is wedge-shaped with the tip facing outwards.

3. The pre-embedded device for preventing backfill soil from tamping and sinking as described in claim 1, wherein: A sliding table (20) is further fixedly provided at the center of the base (10), the sliding table (20) being cylindrical, and the sleeve (32) is sleeved on the sliding table (20) and slidably fitted therewith.

4. The pre-embedded device for preventing backfill soil from subsiding by ramming as claimed in claim 1, wherein: The lower end of the housing body (31) has a soil-breaking blade (37).

5. The embedded device for preventing backfill soil from tamping and sinking as described in claim 1, characterized in that: The top of the housing body (31) has a plurality of first air grooves (34).

6. The pre-embedded device for preventing backfill soil from tamping and sinking as described in claim 1, characterized in that: The top of the sleeve (32) has a plurality of second air grooves (35).

7. The pre-embedded device for preventing backfill soil from tamping and sinking according to claim 1, characterized in that: A plurality of clamping openings (14) are formed in the rabbet portion (11), and the clamping openings (14) are clamped and fitted with the corresponding connecting members (33).

8. The pre-embedded device for preventing backfill soil from sinking by ramming as claimed in claim 7, wherein: The A pin (36) is provided on the lower surface of the connecting member (33), and a jack (15) is formed in the clamping opening (14), and the pin (36) is inserted and fitted with the jack (15).

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