Stable embedded sleeve

Abstract

The utility model discloses a stable embedded sleeve, which belongs to the technical field of railway engineering and comprises a sleeve body component, a stabilizing component and a sealing cover component. The cylinder component is of a columnar structure, a containing space extending in the axis direction of the columnar structure is formed in the top end face of the cylinder component, and the connecting component is detachably connected into the containing space. The stabilizing components are all arranged on the outer wall face of the cylinder component, and a plurality of protruding parts are formed on the outer wall face of the cylinder component. The sealing cover component is arranged at the opening of the containing space and used for opening or blocking the opening of the containing space. The utility model provides a stable pre-embedded sleeve which can adapt to the working environment of a construction site, not only can avoid the influence on road and bridge surface passing during construction, but also can remarkably improve the binding power and pulling resistance between the sleeve and concrete, avoids the separation between the sleeve and a peripheral concrete layer, and improves the construction quality. And the safety and durability of the connecting component are ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of railway engineering, and in particular relates to a stable embedded sleeve. Background Art

[0002] At present, in the field of ballastless track engineering on railway bridges, the main methods used are pre-embedded steel bars, pre-embedded ordinary steel bar connection sleeves and post-embedded steel bars to ensure the effective combination of the bridge deck and the post-cast ballastless track base plate, but there are the following disadvantages:

[0003] (1) Although the pre-buried reinforcement method can effectively ensure the connection between the post-cast concrete base plate and the road and bridge deck, the pre-buried reinforcement is exposed to the road surface during construction, affecting the passage of construction vehicles;

[0004] (2) For the post-embedded reinforcement method, the post-embedded reinforcement is achieved by drilling holes in the road surface, pouring the rebar embedding glue, and then inserting the rebar. This method is greatly affected by the construction quality and the effect of the rebar embedding glue, which affects the quality of the project;

[0005] (3) For the pre-buried common steel bar connection sleeve method, the existing steel bar connection sleeve has a smooth circular surface, poor bonding strength and pull-out resistance with concrete, and is prone to cracking, which is greatly affected by rain erosion and rust; the existing steel bar connection sleeve has poor anti-rotation ability. When the later-implanted steel bar is screwed in, it is easy to cause the sleeve to rotate synchronously, separate from the surrounding concrete, and lose bonding strength with concrete, seriously affecting the safety and durability of the connection component. Utility Model Content

[0006] In response to one or more of the above-mentioned defects or improvement needs of the prior art, the utility model provides a stable embedded sleeve, which can adapt to the working environment of the construction site. It can not only avoid the impact on the traffic on the road and bridge deck during construction, but also significantly improve the adhesion and pull-out resistance between the sleeve and concrete, avoid the separation between the sleeve and the surrounding concrete layers, and ensure the safety and durability of the connecting components.

[0007] To achieve the above purpose, the utility model provides a stable embedded sleeve, which is arranged in the concrete layer of the road bridge deck and is used for the fixed installation of the connecting member, including:

[0008] A cylinder member, wherein the cylinder member is a columnar structure, a receiving space extending along the central axis direction of the columnar structure is provided on the top end surface of the cylinder member, and the connecting member is detachably connected in the receiving space;

[0009] At least one stabilizing member, each of the stabilizing members is arranged on the outer wall surface of the cylindrical member, and a plurality of protrusions are formed on the outer wall surface of the cylindrical member to increase the contact area between the cylindrical member and the concrete layer;

[0010] A cover member is disposed at the opening of the accommodating space and is used to open or block the opening of the accommodating space.

[0011] As a further preferred embodiment of the present invention, the barrel member is a cylindrical columnar structure, and the accommodating space is a cylindrical blind hole.

[0012] As a further preferred embodiment of the present invention, an internal thread is arranged on the inner wall surface of the accommodating space, an external thread corresponding to the internal thread is arranged on the outer peripheral surface of the connecting member, and the accommodating space and the connecting member are threadedly connected.

[0013] As a further preferred embodiment of the present invention, the stabilizing member comprises an annular rib, and the inner annular wall surface of the annular rib is fixedly sleeved on the outer wall surface of the cylindrical member.

[0014] As a further preferred embodiment of the present invention, at least one anti-rotation plane is provided on the outer peripheral wall surface of the annular rib, and the anti-rotation plane extends along the central axis direction.

[0015] As a further preferred embodiment of the present invention, a plurality of annular ribs are arranged at intervals along the central axis direction on the outer wall surface of the cylinder member.

[0016] As a further preferred embodiment of the present invention, the stabilizing member includes a columnar rib extending along the central axis direction.

[0017] As a further preferred embodiment of the present invention, a plurality of columnar ribs are evenly spaced along the circumferential direction on the outer peripheral wall surface of the cylinder.

[0018] As a further preferred embodiment of the present invention, the sealing member includes a plug which is detachably embedded in the opening of the accommodating space.

[0019] As a further preferred embodiment of the present invention, the plug is made of flexible material.

[0020] In general, compared with the prior art, the above technical solutions conceived by the utility model have the following beneficial effects:

[0021] (1) The utility model provides a stable embedded sleeve, which includes a cylinder member, a stabilizing member, and a cover member. The cylinder member is a columnar structure, and a receiving space extending along the central axis of the columnar structure is provided on the top surface of the cylinder member, and the connecting member is detachably connected in the receiving space; the stabilizing members are all arranged on the outer wall surface of the cylinder member, and a number of protrusions are formed on the outer wall surface of the cylinder member. The cover member is arranged at the opening of the receiving space, and is used to open or block the opening of the receiving space. The stable embedded sleeve can adapt to the working environment of the construction site, not only can it avoid the impact on the traffic on the road and bridge deck during construction, but also can significantly improve the bonding force and pull-out resistance between the sleeve and the concrete, avoid the separation between the sleeve and the surrounding concrete layers, and ensure the safety and durability of the connecting member.

[0022] (2) The stable embedded sleeve of the utility model is provided with a plug at the opening of the accommodation space, so that the operator can seal the opening of the accommodation space when the embedded sleeve is embedded in the concrete layer, so as to prevent foreign debris from invading the accommodation space through the opening of the accommodation space, causing blockage of the accommodation space, and affecting the fixed connection between the connecting component and the accommodation space. At the same time, by using a flexible material to prepare the plug and the plug being exposed less than 20mm from the opening of the accommodation space, the plug can achieve the sealing of the accommodation space while reducing the impact of the leaking plug on the road and bridge deck traffic; and when the operator needs to install the connecting component, the leaking plug can also be used to conveniently locate the embedded position of each embedded sleeve on the concrete layer, significantly improving the installation efficiency of the connecting component.

[0023] (3) The stable embedded sleeve of the utility model has a simple structure, is easy to use, and has excellent anti-torsion performance. By setting at least one annular rib in an annular structure or a columnar rib in a columnar structure on the outer peripheral wall of the cylinder member, the cylinder member can ensure that it is stably embedded in the concrete layer while also increasing the contact area between the cylinder member and the concrete layer, so that the cylinder member can stably transfer the rotational force from the connecting member to the concrete layer with the help of the annular or columnar stabilizing member, and then provide a reliable installation foundation for the stable installation of the connecting member on the concrete layer. At the same time, by adopting a multi-prism-shaped cylinder member, the cylinder member can more conveniently transfer the rotational force to the concrete layer, further improving the stability of the rotational force transmission between the connecting member and the concrete layer. In addition, combined with the threaded connection structure between the accommodating space on the cylinder member and the connecting member, and the glue layer filled between the threaded connection structure, the stability of the connection between the connecting member and the accommodating space is guaranteed, and a stable and effective transition transmission foundation is provided for the transmission of the rotational force between the connecting member and the concrete layer, which has good promotion value and application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a half-section view of a stable embedded sleeve in an embodiment of the utility model;

[0025] Figure 2 It is a top view of a stable embedded sleeve in an embodiment of the utility model;

[0026] Figure 3 This is a front view of the embodiment of the utility model after the stable embedded sleeve is installed with a plug;

[0027] In all the drawings, the same reference numerals represent the same technical features, specifically:

[0028] 1. Cylinder member; 2. Accommodating space; 3. Plug; 4. Annular rib; 5. Anti-rotation plane. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model. In addition, the technical features involved in each embodiment of the utility model described below can be combined with each other as long as they do not conflict with each other.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0031] In addition, 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 the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0032] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" 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, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean 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, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0034] Example:

[0035] See also Figures 1 to 3 The stable embedded sleeve in the preferred embodiment of the utility model can adapt to the working environment of the construction site. It can not only avoid the impact on the traffic on the road and bridge deck during construction, but also significantly improve the bonding force and pull-out resistance between the sleeve and concrete, avoid the separation between the sleeve and the surrounding concrete layer, and ensure the safety and durability of the connecting components.

[0036] Specifically, in the preferred embodiment of the present application, the stable embedded sleeve is arranged in the concrete layer of the road bridge deck, providing a stable installation foundation for the subsequent fixed connection between the connecting member and the concrete layer. The stable embedded sleeve includes a barrel member 1, at least one stabilizing member and a capping member.

[0037] In the process of pouring the concrete layer, the cylinder member 1 is directly tracked in the concrete layer. The cylinder member 1 is a columnar structure, and a receiving space 2 extending along the central axis of the columnar structure is provided on the top surface of the cylinder, so that the connecting member can be detachably installed in the receiving space 2, and then the connecting member is fixed on the concrete layer through the stable embedded sleeve.

[0038] Furthermore, each stabilizing member is arranged on the outer wall surface of the cylinder member 1, and then a number of protrusions protruding from the outer wall surface of the cylinder member 1 are formed on the outer wall surface of the cylinder member 1 to increase the contact area between the cylinder member 1 and the concrete layer, thereby significantly improving the connection strength between the cylinder member 1 and the concrete layer, and providing a stable installation foundation for the fixation of the connecting members.

[0039] Furthermore, the cover member is disposed at the opening of the accommodating space 2 , and is used to open or block the opening of the accommodating space 2 through the relative position between the cover member and the opening of the accommodating space 2 .

[0040] Furthermore, in a preferred embodiment of the present application, the barrel member 1 is a cylindrical columnar structure, and correspondingly, the accommodating space 2 is a cylindrical blind hole, so that the connecting member can be directly fixed in the blind hole during the actual construction process.

[0041] Of course, the cylinder member 1 is not limited to the above-mentioned structural form. In a preferred embodiment of the present application, the cylinder member 1 is a square column or a polygonal column, so that the stable embedded sleeve is embedded in the concrete, and the torque from the connecting member can be stably transmitted to the concrete layer through the adjacent side walls of the cylinder member 1 that are angled with each other. Preferably, the outer contour of the horizontal cross section of the cylinder member 1 is a triangle, a quadrilateral or a pentagon.

[0042] Furthermore, in another preferred embodiment of the present application, the overall structure of the cylinder member 1 is a conical structure, that is, from the bottom end surface of the cylinder member 1 to the top end surface of the cylinder member 1, the cross-sectional shape and size of the cylinder member 1 on the horizontal plane decreases successively, so as to improve the pull-out resistance of the cylinder member 1, thereby providing a stable and reliable installation foundation for the installation of the connecting member.

[0043] Further preferably, in the preferred embodiment of the present application, the cylindrical structure and the connecting member are fixedly connected by threaded connection. Specifically, an internal thread is provided on the inner wall of the accommodating space 2 of the cylindrical structure, and correspondingly, an external thread matching the internal thread is also provided on the outer wall surface of the connecting member, so that the connecting member can be threadedly connected with the accommodating space 2. Preferably, the internal thread is arranged on part or all of the inner wall surface of the accommodating space 2. Further preferably, an internal thread is arranged in the accommodating space 2 from the top surface along the central axis downward.

[0044] In more detail, in a preferred embodiment of the present application, the accommodating space 2 is filled with adhesive. Preferably, the adhesive covers the inner wall surface of the accommodating space 2 to improve the connection stability between the connecting member and the accommodating space 2 and ensure the stability of the load transfer between the connecting member and the cylindrical member 1.

[0045] Furthermore, in a preferred embodiment of the present application, the stabilizing member includes an annular rib 4, the inner annular wall of which is sleeved on the outer wall of the cylindrical member 1. Preferably, the inner annular wall of the annular rib 4 and the outer wall of the cylindrical member 1 are transitionally matched to ensure that the annular rib 4 can be stably fixed on the outer wall of the cylindrical member 1, so as to facilitate improving the anti-rotation performance of the cylindrical member 1 through the annular rib 4.

[0046] Further preferably, in the preferred embodiment of the present application, in order to improve the anti-rotation performance of the annular rib 4, at least one anti-rotation plane 5 is provided on the outer ring side wall surface of the annular rib 4, and the anti-rotation plane 5 is a non-horizontal plane. Through the angle formed between the anti-rotation plane 5 and the outer ring side wall surface of the annular rib 4, the rotational force from the connecting component is stably transmitted to the concrete layer, thereby improving the bonding force and pull-out resistance between the stable embedded sleeve and the concrete, avoiding separation between the sleeve and the surrounding concrete layers, and ensuring the safety and durability of the connecting component.

[0047] In more detail, in the preferred embodiment of the present application, four anti-rotation planes 5 are evenly spaced along the circumferential direction on the outer ring side wall surface of the annular rib 4, further improving the anti-rotation performance of the cylinder member 1. Preferably, at least one anti-rotation plane 5 is a vertical plane, and the anti-rotation plane 5 is parallel to the central axis, so that the annular rib 4 can easily transmit the rotational force to the concrete layer.

[0048] Furthermore, in a preferred embodiment of the present application, a plurality of annular ribs 4 are arranged at intervals on the outer wall surface of the cylinder component 1 so as to enhance the bonding force and pull-out resistance between the cylinder component 1 and the concrete layer.

[0049] Of course, the stabilizing component is not limited to the above-mentioned structural form. In a preferred embodiment of the present application, the stabilizing component includes columnar ribs arranged along the extension direction of the central axis. Preferably, the columnar ribs are rectangular column structures, which can also enhance the adhesion and pull-out resistance between the stabilizing embedded sleeve and the concrete layer.

[0050] Furthermore, in a preferred embodiment of the present application, a plurality of columnar ribs are evenly spaced along the circumferential direction on the outer wall surface of the cylindrical member 1. Preferably, the length of the columnar ribs along the central axis is the same as the length of the cylindrical member 1 along the central axis; or the length of the columnar ribs along the central axis is different from the length of the cylindrical member 1 along the central axis.

[0051] In more detail, in a preferred embodiment of the present application, the lengths of the various columnar ribs arranged on the outer peripheral wall surface of the cylindrical member 1 along the central axis direction are different, and at the same time, the top surfaces of the various columnar ribs are not in the same plane in the central axis direction. Preferably, the top surface heights of the various columnar ribs decrease in sequence, and further preferably, each horizontal section within the vertical height range of the cylindrical member 1 passes through at least one columnar rib, thereby improving the comprehensiveness of the cylindrical member 1 in transmitting the rotational force, and then improving the bonding force and pull-out resistance between the stable embedded sleeve and the concrete layer.

[0052] Furthermore, in another preferred embodiment of the present application, the stabilizing member includes an inverted trapezoidal column, that is, the cross-sectional shape of the inverted trapezoidal column in the horizontal direction is an inverted trapezoid, and the upper base of the inverted trapezoid is fixed on the side wall surface of the cylindrical member 1, so that the cylindrical member 1 can transmit the rotational force from the connecting member with the help of the inverted trapezoidal column.

[0053] Furthermore, in a preferred embodiment of the present application, the sealing member includes a plug 3 that is detachably embedded in the opening of the accommodating space 2. By embedding the plug 3 in the opening of the accommodating space 2 or pulling the plug 3 out of the opening of the accommodating space 2, the plug 3 can seal the accommodating space 2 before the connecting member is installed, thereby preventing foreign matter from invading the accommodating space 2 and affecting the installation of the connecting member.

[0054] Further preferably, in the preferred embodiment of the present application, the plug 3 is made of flexible material. Preferably, the top of the plug 3 is higher than the top end surface of the cylinder member 1. Further preferably, the height of the raised part of the plug 3 is within 20 mm, and the diameter of the exposed part of the plug 3 is not less than 24 mm, so that the position of the embedded sleeve can be conveniently located through the raised plug 3 after the concrete layer is poured.

[0055] In more detail, in a preferred embodiment of the present application, a connecting rope is provided between the plug 3 and the barrel member 1, one end of the connecting rope is detachably connected to the barrel member 1, and the other end of the connecting rope is fixed to the plug 3 to prevent the plug 3 from being lost.

[0056] The stable embedded sleeve in the utility model has a simple structure, is easy to use, and has excellent anti-torsion performance. By setting at least one annular rib 4 with an annular structure or a columnar rib with a columnar structure on the outer peripheral wall of the cylinder member 1, the cylinder member 1 can ensure that it is stably embedded in the concrete layer while also increasing the contact area between the cylinder member 1 and the concrete layer, thereby enabling the cylinder member 1 to stably transfer the rotational force from the connecting member to the concrete layer with the help of the annular or columnar stabilizing member, thereby providing a reliable installation foundation for the stable installation of the connecting member on the concrete layer. At the same time, by adopting a multi-prism-shaped cylinder member 1, the cylinder member 1 can more conveniently transfer the rotational force to the concrete layer, further improving the stability of the rotational force transmission between the connecting member and the concrete layer. In addition, the threaded connection structure between the accommodating space 2 on the cylindrical member 1 and the connecting member, as well as the rubber layer filled between the threaded connection structure, ensures the stability of the connection between the connecting member and the accommodating space 2, and provides a stable and effective transition transmission basis for the transmission of the rotational force between the connecting member and the concrete layer, which has good promotion value and application prospects.

[0057] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A stable embedded sleeve, which is arranged in the concrete layer of the road bridge deck and is used for the fixed installation of the connecting member, characterized in that: include: A cylinder member, wherein the cylinder member is a columnar structure, a receiving space extending along the central axis direction of the columnar structure is provided on the top end surface of the cylinder member, and the connecting member is detachably connected in the receiving space; At least one stabilizing member, each of the stabilizing members is arranged on the outer wall surface of the cylindrical member, and a plurality of protrusions are formed on the outer wall surface of the cylindrical member to increase the contact area between the cylindrical member and the concrete layer; A cover member is disposed at the opening of the accommodating space and is used to open or block the opening of the accommodating space.

2. The stable embedded sleeve according to claim 1, wherein: The barrel component is a cylindrical columnar structure, and the accommodating space is a cylindrical blind hole.

3. The stable embedded sleeve according to claim 2, wherein: An internal thread is arranged on the inner wall surface of the accommodating space, an external thread corresponding to the internal thread is arranged on the outer wall surface of the connecting member, and the accommodating space and the connecting member are threadedly connected.

4. The stable embedded sleeve according to claim 2 or 3, wherein: The stabilizing component comprises an annular rib, and the inner annular wall surface of the annular rib is fixedly sleeved on the outer wall surface of the cylinder component.

5. The stable embedded sleeve according to claim 4, wherein: At least one anti-rotation plane is arranged on the outer ring side wall surface of the annular rib, and the anti-rotation plane extends along the central axis direction.

6. The stable embedded sleeve according to claim 5, wherein: A plurality of annular ribs are arranged at intervals along the central axis direction on the outer wall surface of the cylinder component.

7. The stable embedded sleeve according to claim 2 or 3, wherein: The stabilizing member includes a columnar rib extending along the central axis direction.

8. The stable embedded sleeve according to claim 7, wherein: A plurality of columnar ribs are evenly spaced along the circumferential direction on the outer peripheral wall surface of the cylinder.

9. The stable embedded sleeve according to any one of claims 1 to 3, 5, 6 and 8, wherein: The cover member includes a plug that is detachably inserted into the opening of the accommodating space.

10. The stable embedded sleeve according to claim 9, wherein: The plug is made of flexible material.

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