CN216948258U - Reducing transition pipe for prestressed anchor rod - Google Patents
Reducing transition pipe for prestressed anchor rod Download PDFInfo
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- CN216948258U CN216948258U CN202220575307.4U CN202220575307U CN216948258U CN 216948258 U CN216948258 U CN 216948258U CN 202220575307 U CN202220575307 U CN 202220575307U CN 216948258 U CN216948258 U CN 216948258U
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Abstract
The utility model relates to the technical field of prestressed anchors, and discloses a reducing transition pipe for a prestressed anchor, which comprises a reducing cylinder with a small upper part and a large lower part, wherein the prestressed anchor comprises an anchoring section and a free section, the anchoring section is arranged in an anchor hole in a penetrating manner, the free section is arranged in an anchor seat in a penetrating manner, and an anchoring body is arranged in the anchor hole and wraps the anchoring section to fix the anchoring section in the anchor hole; the reducer comprises a small-diameter section and a large-diameter section, wherein the small-diameter section is arranged in a through-rib hole of the anchor base in a penetrating mode, the bottom of the small-diameter section is in butt joint with the bottom of the small-diameter section, the large-diameter section is sleeved on the periphery of the anchoring body, and the diameter of the large-diameter section is larger than that of the small-diameter section; the diameter of the minor diameter section of a reducing section of thick bamboo is less than the diameter of major diameter section, wears to establish in wearing the muscle hole with the minor diameter section, and the at utmost will wear the muscle hole to set up to minimum scope, and the periphery at the anchor body is established to major diameter section cover, because the size in wearing the muscle hole is less, need not increase anchor backing plate size and thickness, only need normal size and thickness, then can bear the stretch-draw load of applying on the anchor backing plate, avoids the waste of anchor backing plate.
Description
Technical Field
The utility model relates to the technical field of prestressed anchors, in particular to a reducing transition pipe for a prestressed anchor.
Background
Due to the tensioning requirement of the prestressed anchor rod, a reinforcement penetrating hole is reserved in an anchor seat made of reinforced concrete, and in order to reserve the reinforcement penetrating hole, a transition pipe needs to be installed before the anchor seat is poured. The lower part embedding of transition pipe is in the stratum, encircles in anchor body periphery, and is provided with the stagnant water sealing washer in the bottom of transition pipe, pours the concrete in the outside on the upper portion of transition pipe, forms the anchor block, and the upper portion of just also passing through of transition pipe is established in the perforation.
Among the prior art, the diameter of transition pipe needs to be greater than the diameter of the anchor body, so that the lower part cover of transition pipe is established in the periphery of anchor body, under general condition, the general 130mm ~ 200mm of anchor body diameter leads to the diameter of transition pipe 150mm ~ 220mm at least, and wear muscle hole diameter and generally only need 60mm ~ 90mm just can satisfy the functional requirement, but because the diameter of transition pipe is 150mm ~ 220mm, cause and wear muscle hole diameter 150mm ~ 220mm at least, lead to setting up the anchor backing plate size and the thickness on the anchorage and then must be great, otherwise when unable anchor bolt stretch-draw of bearing, apply the load on the anchor backing plate, the waste of anchor backing plate has been caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a reducing transition pipe for a pre-stressed anchor rod, and aims to solve the problem that an anchor backing plate is overlarge in size and thickness in the prior art.
The utility model is realized in this way, the reducing transition pipe used for the prestressed anchor rod comprises a reducing cylinder with a small upper part and a big lower part, the prestressed anchor rod comprises an anchoring section which is arranged in an anchor hole in a penetrating way and a free section which is arranged in an anchor seat in a penetrating way, an anchoring body is arranged in the anchor hole, and the anchoring section is fixed in the anchor hole by the anchoring body wrapping the anchoring section; the reducing cylinder comprises a small-diameter section and a large-diameter section, wherein the small-diameter section is arranged in a through-rib hole of the anchor base in a penetrating mode, the bottom of the small-diameter section is in butt joint with the bottom of the small-diameter section, the large-diameter section is sleeved on the periphery of the anchoring body, and the diameter of the large-diameter section is larger than that of the small-diameter section.
Furthermore, the inner side of the bottom of the large-diameter section is provided with an elastic sealing ring which is arranged in a surrounding mode along the circumferential direction of the large-diameter section.
Furthermore, the bottom of the large-diameter section is provided with a guide ring surface, the guide ring surface is horizontally and flatly arranged, and the guide ring surface guides the sealing ring into the large-diameter section.
Further, the bottom of the anchor seat is provided with a cushion layer, the cushion layer is arranged on the ground layer, the anchor seat is abutted to the cushion layer, the lower part of the large-diameter section is sleeved on the periphery of the anchoring body to form a lower block, and the upper part of the large-diameter section is formed in the cushion layer to form an upper block.
Furthermore, a sleeve hole is formed in the lower block, the anchoring body is arranged in the sleeve hole in a penetrating mode, a penetrating hole is formed in the upper block, the penetrating hole penetrates through the small-diameter section from bottom to top, the free section penetrates through the penetrating hole from bottom to top, and the diameter of the penetrating hole is smaller than that of the sleeve hole; the bottom of the upper block is provided with an upper abutting surface facing the sleeve setting hole, the upper abutting surface is arranged around the periphery of the through hole, the sleeve setting hole is arranged between the upper abutting surface and the top of the anchoring section, and the sleeve setting hole prevents the upper abutting surface from directly abutting against the top of the anchoring section.
Furthermore, the upper pressing surface is arranged in an inclined shape.
Furthermore, the periphery of the large-diameter section is provided with transition steps which are arranged upwards, the transition steps are arranged in a surrounding mode along the circumferential direction of the small-diameter section, transition edges are formed on the inner side of the transition steps and the peripheral diameter of the small-diameter section, and the anchor seat is abutted to the transition edges from top to bottom.
Further, transition edge undercut is formed with the butt annular, the butt annular is arranged along the circumference of minor diameter section around, it has the adhesive tape to embed in the butt annular, anchor block top-down is supporting pressing the adhesive tape.
Furthermore, the periphery of the bottom of the rib penetrating hole forms an abutting edge, and the abutting edge abuts against the adhesive tape from top to bottom.
Further, the transition step is arranged obliquely downwards along the direction away from the small diameter section.
Compared with the prior art, the diameter of the small-diameter section of the reducing cylinder is smaller than that of the large-diameter section, the small-diameter section is arranged in the rib penetrating hole in a penetrating mode, the rib penetrating hole can be set to be the minimum range to the maximum degree, the large-diameter section is sleeved on the periphery of the anchoring body, normal arrangement of the reducing cylinder is guaranteed, due to the fact that the size of the rib penetrating hole is small, the size and the thickness of the anchor backing plate do not need to be increased, only the size and the thickness of the anchor backing plate need to be normal, the tension load applied to the anchor backing plate can be borne, and waste of the anchor backing plate is avoided.
Drawings
FIG. 1 is a schematic sectional view of a reducing transition pipe for a prestressed anchor according to the present invention in use;
FIG. 2 is a sectional view of a reducing transition pipe for a prestressed anchor according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and do not limit the utility model.
The following describes the implementation of the present invention in detail with reference to specific embodiments.
The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms may be understood by those skilled in the art according to specific circumstances.
Referring to fig. 1-2, a preferred embodiment of the present invention is shown.
The reducing transition pipe for the prestressed anchor comprises a reducing cylinder with a small upper part and a large lower part, the prestressed anchor comprises an anchoring section 203 and a free section 202, the anchoring section 203 is arranged in an anchor hole in a penetrating mode, the free section 202 is arranged in an anchor seat 100 in a penetrating mode, an anchoring body 300 is arranged in the anchor hole, the anchoring body 300 wraps the anchoring section 203, and the anchoring section 203 is fixed in the anchor hole; the reducer cylinder comprises a small-diameter section 301 arranged in a reinforcement penetrating hole of the anchor seat 100 in a penetrating mode, and a large-diameter section 302 which is abutted to the bottom of the small-diameter section 301 and sleeved on the periphery of the anchoring body 300, wherein the diameter of the large-diameter section 302 is larger than that of the small-diameter section 301.
In practical application, an anchor seat 100 is arranged on a stratum, an anchor backing plate 102 is arranged on the anchor seat 100, an anchoring section 203 is fixed in an anchor hole, when the anchoring section 203 is anchored by an anchoring body 300, a prestressed anchor rod can be tensioned, a free section 202 penetrates through a small-diameter section 301 and the anchor backing plate 102 from bottom to top to form an extension section 201 extending above the anchor backing plate 102, and after the prestressed anchor rod is tensioned, the extension section 201 is fixed with the anchor backing plate 102 through an anchor clamping piece 103.
The reducing transition pipe for prestressed anchor rod that the aforesaid provided, the diameter of the minor diameter section 301 of a reducing section is less than the diameter of major diameter section 302, wear to establish in wearing the muscle hole with minor diameter section 301, can set up to minimum scope with wearing the muscle hole to the at utmost, and major diameter section 302 cover is established in the periphery of anchor body 300, the normal arrangement of a reducing section has been guaranteed, and because the size of wearing the muscle hole is less, need not increase the size and the thickness of anchor backing plate 102, only need normal size and thickness, then can bear the tension load of applying on anchor backing plate 102, avoid the waste of anchor backing plate 102.
The large diameter section 302 has a guide ring surface 303 at the bottom, and the guide ring surface 303 is horizontally arranged in a flat shape. Thus, when the guide ring surface 303 presses the sealing ring 400 downwards, the sealing ring 400 is deformed after being guided into the large-diameter section, and a better sealing and water stopping effect is achieved.
The bottom of anchor seat 100 is equipped with bed course 101, and bed course 101 sets up on the stratum, and anchor seat 100 butt is on bed course 101, and the lower part cover of major diameter section 302 is established in the periphery of anchor 300, forms the lower block, and the upper portion of major diameter section 302 forms in bed course 101, forms the upper block.
A sleeve hole 309 is formed in the lower block, the anchoring body 300 is arranged in the sleeve hole 309 in a penetrating manner, a penetrating hole 305 is formed in the upper block, the penetrating hole 305 penetrates through the small-diameter section 301 from bottom to top, the free section 202 penetrates through the penetrating hole 305 from bottom to top, and the diameter of the penetrating hole 305 is smaller than that of the sleeve hole 309; an upper abutting surface 308 facing the sleeving hole 309 is formed at the bottom of the upper block, the upper abutting surface 308 is arranged around the periphery of the through hole 305, a sleeving hole 309 is formed between the upper abutting surface 308 and the top of the anchoring section 203, and the sleeving hole 309 prevents the upper abutting surface 308 from directly abutting against the top of the anchoring section 203.
In this embodiment, the upper abutting surface 308 is disposed in an inclined manner, so that the upper abutting surface 308 cannot directly abut against the anchoring body 300, and the load of the anchoring body 300 is prevented from being transmitted to the upper abutting surface 308.
The lower block is sleeved on the periphery of the anchoring section 203 to play a role in fixing, and in the process of tensioning the prestressed anchor rod, the phenomena of position deviation and the like of the reducer cylinder are avoided, and the position stability of the reducer cylinder is ensured.
The outer periphery of the large-diameter section 302 is formed with an upward transition step 307, the transition step 307 is arranged around the circumference of the small-diameter section 301, the inner side of the transition step 307 and the outer diameter of the small-diameter section 301 are formed with transition edges, and the anchor seat 100 abuts against the transition edges from top to bottom. Thus, the reducer cylinder is fixed from top to bottom by the anchor seat 100 pressing against the transition edge.
Transition edge undercut is formed with the butt annular, and the butt annular is arranged along the circumference of minor diameter section 301 encircleing, and the embedding has adhesive tape 306 in the butt annular, and anchor block 100 top-down is pressing adhesive tape 306. Through setting up adhesive tape 306, can play the effect that elasticity supported and pressed, guarantee anchor block 100 and the better interference fit of reducing cylinder, support and press more firmly.
The periphery of the bottom of the rib penetrating hole forms an abutting edge, the abutting edge abuts against the rubber strip 306 from top to bottom, and abutting and pressing between the abutting edge and the rubber strip 306 are utilized to facilitate abutting and positioning.
Along the direction that deviates from minor diameter section 301, transition step 307 is the slope arrangement downwards, and like this, transition step 307 then places in bed course 101, plays the effect of firm position, only needs the butt cooperation between butt edge and the adhesive tape 306 then can.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The reducing transition pipe for the pre-stressed anchor rod is characterized by comprising a reducing cylinder with a small upper part and a big lower part, wherein the pre-stressed anchor rod comprises an anchoring section and a free section, the anchoring section is arranged in an anchor hole in a penetrating manner, the free section is arranged in an anchor seat in a penetrating manner, and an anchoring body is arranged in the anchor hole and covers the anchoring section to fix the anchoring section in the anchor hole; the reducing cylinder comprises a small-diameter section and a large-diameter section, wherein the small-diameter section is arranged in a through-rib hole of the anchor base in a penetrating mode, the bottom of the small-diameter section is in butt joint with the bottom of the small-diameter section, the large-diameter section is sleeved on the periphery of the anchoring body, and the diameter of the large-diameter section is larger than that of the small-diameter section.
2. The variable diameter transition pipe for the prestressed anchor as claimed in claim 1, wherein an elastic sealing ring is provided at an inner side of a bottom of the large diameter section, and the sealing ring is circumferentially arranged along a circumference of the large diameter section.
3. The variable diameter transition pipe for the prestressed anchor as claimed in claim 2, wherein the large diameter section has a guide ring surface at the bottom thereof, the guide ring surface being horizontally disposed flat, the guide ring surface guiding the seal ring into the large diameter section.
4. The variable diameter transition pipe for the prestressed anchor as claimed in any one of claims 1 to 3, wherein a bottom of the anchorage is provided with a pad layer, the pad layer is disposed on the ground, the anchorage abuts on the pad layer, a lower portion of the large diameter section is sleeved on an outer periphery of the anchoring body to form a lower block, and an upper portion of the large diameter section is formed in the pad layer to form an upper block.
5. The variable diameter transition pipe for the prestressed anchor as claimed in claim 4, wherein said lower block has a sleeve hole, said anchor body is inserted into said sleeve hole, said upper block has a through hole, said through hole penetrates through the small diameter section from bottom to top, said free section penetrates through the through hole from bottom to top, and the diameter of said through hole is smaller than the diameter of the sleeve hole; the bottom of the upper block is provided with an upper abutting surface facing the sleeve setting hole, the upper abutting surface is arranged around the periphery of the through hole, the sleeve setting hole is arranged between the upper abutting surface and the top of the anchoring section, and the sleeve setting hole prevents the upper abutting surface from directly abutting against the top of the anchoring section.
6. The variable diameter transition tube for prestressed anchors of claim 5, wherein said upper abutment surface is inclined.
7. The variable diameter transition pipe for the prestressed anchor as claimed in any one of claims 1 to 3, wherein the outer circumference of the large diameter section is formed with upwardly disposed transition steps which are circumferentially disposed along the circumference of the small diameter section, the inner side of the transition steps and the outer circumference diameter of the small diameter section are formed with transition edges against which the anchor blocks are abutted from top to bottom.
8. The reducing transition pipe for the prestressed anchor as claimed in claim 7, wherein said transition edge is recessed downward to form an abutment ring groove, said abutment ring groove is circumferentially disposed along a circumference of the small diameter section, an adhesive tape is embedded in said abutment ring groove, and said anchor seat is pressed against said adhesive tape from top to bottom.
9. The reducing transition pipe for the prestressed anchor as claimed in claim 8, wherein the bottom of said tendon-passing hole has an abutment edge formed at its outer periphery, said abutment edge pressing against the rubber strip from top to bottom.
10. The reducing transition pipe for the prestressed anchor as claimed in claim 7, wherein said transition step is arranged to be inclined downward in a direction away from the small diameter section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220575307.4U CN216948258U (en) | 2022-03-11 | 2022-03-11 | Reducing transition pipe for prestressed anchor rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220575307.4U CN216948258U (en) | 2022-03-11 | 2022-03-11 | Reducing transition pipe for prestressed anchor rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216948258U true CN216948258U (en) | 2022-07-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220575307.4U Active CN216948258U (en) | 2022-03-11 | 2022-03-11 | Reducing transition pipe for prestressed anchor rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216948258U (en) |
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2022
- 2022-03-11 CN CN202220575307.4U patent/CN216948258U/en active Active
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