Device suitable for concrete post-anchoring

Abstract

The utility model discloses a device suitable for concrete post-anchoring, which belongs to the technical field of building construction, and adopts the technical scheme that the device comprises an outer sleeve, an inner sleeve, an outer support component of the outer sleeve and an extrusion component of the inner sleeve, the outer supporting assembly comprises a U-shaped notch formed in the lower end of the outer sleeve and a circular truncated cone ring arranged at the lower end of the inner sleeve, and the outer diameter of the circular truncated cone ring is larger than the inner diameter of the outer sleeve; the extrusion assembly comprises a plurality of lug plates arranged on the outer wall of the inner sleeve, guide rods with the upper ends inclining towards the inner sleeve are fixedly arranged on the outer edges of the lug plates, sliding blocks are arranged on the guide rods in a sliding mode, gears are rotationally arranged on the sliding blocks, the axes of the gears are perpendicular to the axis of the inner sleeve, and a plurality of racks meshed with the gears are arranged on the inner wall of the outer sleeve. The rack is parallel to the guide rod; external threads are arranged at the upper part of the inner sleeve, and the rotating ring is in threaded connection with the inner sleeve. The concrete post-anchoring device has the advantage that the concrete post-anchoring device is suitable for concrete post-anchoring.

Description

Technical Field

[0001] The utility model belongs to the technical field of building construction, and particularly relates to a device suitable for post-anchoring of concrete. Background Art

[0002] Post-anchoring refers to a reinforcement method in concrete structures that is performed after the concrete is poured. It is usually done by drilling holes in the concrete surface, inserting rebars, and filling the holes with glue or grouting materials to fix the rebars. This method only relies on the fixation between the rebars and the glue or grouting materials, and has poor stability. Utility Model Content

[0003] The utility model aims to provide a device suitable for post-anchoring of concrete.

[0004] The utility model is realized by the following measures: a device suitable for post-anchoring of concrete, characterized in that it comprises an outer sleeve, an inner sleeve arranged concentrically with the outer sleeve, an outer support assembly of the outer sleeve and an extrusion assembly of the inner sleeve;

[0005] The outer support assembly includes a U-shaped notch arranged at the lower end of the outer sleeve, and a truncated cone ring arranged at the lower end of the inner sleeve and having an outer diameter greater than the inner diameter of the outer sleeve, and a plurality of U-shaped notches are evenly distributed in the circumferential direction;

[0006] The extrusion assembly includes a plurality of ear plates arranged on the outer wall of the inner sleeve, and a plurality of ear plates are evenly distributed above the U-shaped notch and in the circumferential direction. A guide rod with an upper end inclined toward the inner sleeve is fixedly arranged on the outer edge of the ear plate, a slider is slidably arranged on the guide rod, a gear is rotatably arranged on the slider, and the axis of the gear is perpendicular to the axis of the inner sleeve. A plurality of racks meshing with the gears are arranged on the inner wall of the outer sleeve, and the racks are parallel to the guide rod;

[0007] The upper portion of the inner sleeve is provided with an external thread, and further comprises a rotating ring threadedly connected to the inner sleeve, wherein the rotating ring can be supported on the upper end surface of the outer sleeve;

[0008] By rotating the rotating ring, the inner sleeve moves toward the rotating ring, and the truncated cone ring can open the outer sleeve at the U-shaped notch; the gear meshing with the rack moves along the inclined direction of the guide rod and the gear squeezes the side wall of the inner sleeve.

[0009] Furthermore, a concave opening is provided at the position where the gear squeezes the inner sleeve, and the gear can squeeze the side wall at the concave opening and make it close to the axis of the inner sleeve.

[0010] Furthermore, a plurality of guide grooves are evenly distributed in the circumferential direction on the lower portion of the inner wall of the outer sleeve, and a guide plate cooperating with the guide grooves is arranged on the outer wall of the inner sleeve, and the guide plate moves along the guide grooves.

[0011] Furthermore, the guide rod comprises two symmetrically arranged oblique rods, and slide grooves are arranged on opposite surfaces of the two oblique rods. A guide block cooperating with the slide grooves is arranged on the slider, and the inclination direction of the slide grooves is consistent with that of the oblique rods.

[0012] Furthermore, there are three ear plates evenly distributed in the circumferential direction.

[0013] Furthermore, a plurality of extrusion assemblies are arranged along the axial direction of the inner sleeve.

[0014] Furthermore, the gears in two adjacent extrusion assemblies are staggered with each other.

[0015] Directions:

[0016] 1. Select the size of the inner sleeve according to the diameter of the anchored reinforcement after concrete. The inner diameter of the inner sleeve is slightly larger than the outer diameter of the reinforcement. Select a pistol drill with the corresponding drill bit according to the outer diameter of the outer sleeve to drill holes and blow them clean.

[0017] 2. Select inner sleeve and outer sleeve of corresponding length according to the drilling depth and the length of the embedded reinforcement, and extend the lower end of the outer sleeve and the lower end of the inner sleeve into the bottom of the drilled hole.

[0018] 3. Insert the corresponding steel bars into the inner sleeve until they reach the bottom.

[0019] 4. Use a wrench to rotate the rotating ring. When the rotating ring presses against the upper end surface of the outer sleeve, the inner sleeve threadedly connected thereto moves upward as a whole, and the truncated cone ring at the lower end of the inner sleeve moves upward and opens the U-shaped notch of the outer sleeve, so that the outer wall of the outer sleeve presses against the inner wall of the drill hole, thereby fixing the outer sleeve; at the same time, as the inner sleeve moves upward, the gear meshes with the rack, and the gear drives the slider to move upward along the guide rod during the rotation process. Since the upper end of the guide rod is close to the inner sleeve, the gear gradually approaches the outer sleeve during the upward movement and squeezes the inner sleeve, so that the side wall of the inner sleeve squeezes the embedded steel bar, thereby fixing the embedded steel bar; a concave opening is provided at the position where the gear squeezes the inner sleeve, so that when the gear squeezes the inner sleeve, it is easier to deform so that it can better extrude the embedded steel bar.

[0020] 5. Use glue or grouting materials to fill the gaps between the inner sleeve, outer sleeve and embedded reinforcement.

[0021] The beneficial effects of the technical solution provided by the embodiment of the utility model are: the outer sleeve is supported by the truncated cone ring on the inner sleeve to achieve fixation of the outer sleeve, and the embedded steel bars are fixed by squeezing the inner sleeve by the gears. The embedded steel bars are not only fixed by glue or grouting materials, but also by adding mechanical locking, which actually increases the stability of the embedded steel bars. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solution of the present utility model, a brief introduction will be given to the drawings used in the embodiments below. Obviously, the drawings listed below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0024] Figure 2 This is a schematic diagram of the structure of the inner sleeve in the embodiment of the utility model. Figure 1 ;

[0025] Figure 3 This is a schematic diagram of the structure of the inner sleeve in the embodiment of the utility model. Figure 2 ;

[0026] Figure 4 It is a schematic diagram of the structure in which a slider is installed on an inner sleeve in an embodiment of the utility model;

[0027] Figure 5 yes Figure 4 A partial enlarged view of the middle A;

[0028] Figure 6 It is a structural schematic diagram of the outer sleeve in the embodiment of the utility model;

[0029] Figure 7 It is a schematic diagram of the structure with the outer sleeve and embedded reinforcement removed;

[0030] Figure 8 It is a schematic diagram of the structure after the outer sleeve is partially cut;

[0031] Fig. 9 yes Figure 8 A partial enlarged view of point B in the middle.

[0032] In the attached drawings, the components represented by each number are listed as follows: 1. Outer sleeve; 2. Inner sleeve; 3. Rotating ring; 4. Embedded reinforcement; 5. Gear; 101. U-shaped notch; 102. Rack; 103. Guide groove; 201. Conical ring; 202. Guide plate; 203. Bevel rod; 204. Slide groove; 205. Slider; 206. Guide block; 207. Shaft; 208. Ear plate; 209. Concave mouth. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail in combination with the embodiments below. Of course, the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0034] See also Figure 1-Figure 9 , a device suitable for post-anchoring of concrete, characterized in that it comprises an outer sleeve 1, an inner sleeve 2 arranged concentrically with the outer sleeve 1, an outer support component of the outer sleeve 1 and an extrusion component of the inner sleeve 2;

[0035] The outer support assembly includes a U-shaped notch 101 arranged at the lower end of the outer sleeve 1, and a truncated cone ring 201 arranged at the lower end of the inner sleeve 2 and having an outer diameter greater than the inner diameter of the outer sleeve 1. There are a plurality of U-shaped notches 101 evenly distributed in the circumferential direction.

[0036] The extrusion assembly includes a plurality of ear plates 208 arranged on the outer wall of the inner sleeve 2, and a plurality of ear plates 208 are evenly distributed above the U-shaped notch 101 and in the circumferential direction. A guide rod with an upper end inclined toward the inner sleeve 2 is fixedly arranged on the outer edge of the ear plate 208, a slider 205 is slidably arranged on the guide rod, a gear 5 is rotatably arranged on the slider 205, and the axis of the gear 5 is perpendicular to the axis of the inner sleeve 2. A plurality of racks 102 meshing with the gear 5 are arranged on the inner wall of the outer sleeve 1, and the racks 102 are parallel to the guide rod;

[0037] The upper portion of the inner sleeve 2 is provided with an external thread, and also includes a rotating ring 3 threadedly connected to the inner sleeve 2, and the rotating ring 3 can be pressed against the upper end surface of the outer sleeve 1;

[0038] By rotating the rotating ring 3 , the inner sleeve 2 moves toward the rotating ring 3 , and the truncated cone ring 201 can open the outer sleeve 1 at the U-shaped notch 101 ; the gear 5 meshing with the rack 102 moves along the inclined direction of the guide rod and the gear 5 squeezes the side wall of the inner sleeve 2 .

[0039] A concave opening 209 is provided at the position where the gear 5 presses the inner sleeve 2 , and the gear 5 can press the side wall at the concave opening 209 and make it close to the axis of the inner sleeve 2 .

[0040] A plurality of guide grooves 103 are evenly distributed in the circumferential direction on the lower portion of the inner wall of the outer sleeve 1 , and a guide plate 202 cooperating with the guide grooves 103 is arranged on the outer wall of the inner sleeve 2 , and the guide plate 202 moves along the guide grooves 103 .

[0041] The guide rod includes two symmetrically arranged oblique rods 203, and the opposite surfaces of the two oblique rods 203 are provided with a slide groove 204. The slider 205 is provided with a guide block 206 that cooperates with the slide groove 204, and the slide groove 204 is in the same inclination direction as the oblique rod 203. The slider 205 is generally two symmetrical structures, connected by a shaft 207 in the middle, and the gear 5 is rotatably arranged on the shaft 207.

[0042] There are three ear plates 208 evenly distributed around the circumference.

[0043] Several extrusion assemblies are arranged along the axial direction of the inner sleeve 2 .

[0044] The gears 5 in two adjacent extrusion assemblies are staggered with each other.

[0045] Directions:

[0046] 1. Select the size of the inner sleeve 2 according to the diameter of the anchored rebar 4 after concrete. The inner diameter of the inner sleeve 2 is slightly larger than the outer diameter of the rebar 4. Select a pistol drill with the corresponding drill bit according to the outer diameter of the outer sleeve 1 to drill holes and blow them clean.

[0047] 2. Select the inner sleeve 2 and the outer sleeve 1 of corresponding length according to the drilling depth and the length of the embedded reinforcement 4, and extend the lower end of the outer sleeve 1 and the lower end of the inner sleeve 2 into the bottom of the drilled hole.

[0048] 3. Insert the corresponding steel bars into the inner sleeve 2 until it reaches the bottom.

[0049] 4. Use a wrench to rotate the rotating ring 3. When the rotating ring 3 presses against the upper end surface of the outer sleeve 1, the inner sleeve 2 threadedly connected thereto moves upward as a whole, and the truncated cone ring 201 at the lower end of the inner sleeve 2 moves upward and opens the U-shaped notch 101 of the outer sleeve 1, so that the outer wall of the outer sleeve 1 presses against the inner wall of the borehole, thereby fixing the outer sleeve 1; at the same time, as the inner sleeve 2 moves upward, the gear 5 meshes with the rack 102, and the gear 5 drives the slider 205 to move upward along the guide rod during the rotation. Since the upper end of the guide rod is close to the inner sleeve 2, the gear 5 gradually approaches the outer sleeve 1 and squeezes the inner sleeve 2 during the upward movement, so that the side wall of the inner sleeve 2 squeezes the embedded steel bar 4, thereby fixing the embedded steel bar 4; a concave opening 209 is provided at the position where the gear 5 squeezes the inner sleeve 2, so that when the gear 5 squeezes the inner sleeve 2, it is easier to deform so that it can better squeeze the embedded steel bar 4.

[0050] 5. Use glue or grouting material to fill the gaps between the inner sleeve 2, the outer sleeve 1 and the embedded reinforcement 4.

[0051] 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, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device suitable for post-anchoring of concrete, characterized in that: It comprises an outer sleeve, an inner sleeve arranged concentrically with the outer sleeve, an outer support assembly of the outer sleeve and an extrusion assembly of the inner sleeve; The outer support assembly includes a U-shaped notch arranged at the lower end of the outer sleeve, and a truncated cone ring arranged at the lower end of the inner sleeve and having an outer diameter greater than the inner diameter of the outer sleeve, and a plurality of U-shaped notches are evenly distributed in the circumferential direction; The extrusion assembly includes a plurality of ear plates arranged on the outer wall of the inner sleeve, and a plurality of ear plates are evenly distributed above the U-shaped notch and in the circumferential direction. A guide rod with an upper end inclined toward the inner sleeve is fixedly arranged on the outer edge of the ear plate, a slider is slidably arranged on the guide rod, a gear is rotatably arranged on the slider, and the axis of the gear is perpendicular to the axis of the inner sleeve. A plurality of racks meshing with the gears are arranged on the inner wall of the outer sleeve, and the racks are parallel to the guide rod; The upper portion of the inner sleeve is provided with an external thread, and further comprises a rotating ring threadedly connected to the inner sleeve, wherein the rotating ring can be supported on the upper end surface of the outer sleeve; By rotating the rotating ring, the inner sleeve moves toward the rotating ring, and the truncated cone ring can open the outer sleeve at the U-shaped notch; the gear meshing with the rack moves along the inclined direction of the guide rod and the gear squeezes the side wall of the inner sleeve.

2. The device for post-anchoring concrete according to claim 1, characterized in that: A concave opening is provided at the position where the gear squeezes the inner sleeve, and the gear can squeeze the side wall at the concave opening and make it close to the axis center of the inner sleeve.

3. The device suitable for post-anchoring of concrete according to claim 1, characterized in that: A plurality of guide grooves are evenly distributed in the circumferential direction on the lower part of the inner wall of the outer sleeve, and a guide plate cooperating with the guide grooves is arranged on the outer wall of the inner sleeve, and the guide plate moves along the guide grooves.

4. The device for post-anchoring of concrete according to claim 1, characterized in that: The guide rod comprises two symmetrically arranged oblique rods, and slide grooves are arranged on the opposite surfaces of the two oblique rods. A guide block cooperating with the slide grooves is arranged on the slider, and the inclination direction of the slide grooves is consistent with that of the oblique rods.

5. The device suitable for post-anchoring of concrete according to claim 1, characterized in that: There are three ear plates evenly distributed in the circumferential direction.

6. The device suitable for post-anchoring of concrete according to any one of claims 1 to 5, characterized in that: A plurality of extrusion assemblies are arranged along the axial direction of the inner sleeve.

7. The device suitable for post-anchoring of concrete according to claim 6, characterized in that: The gears in two adjacent extrusion assemblies are staggered with each other.

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