CN214656999U

CN214656999U - Sectional type anticorrosion connecting anchor rod

Info

Publication number: CN214656999U
Application number: CN202120425842.7U
Authority: CN
Inventors: 赵津梁; 赵旭琳; 贺潇; 赵旭鑫
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-02-26
Filing date: 2021-02-26
Publication date: 2021-11-09
Anticipated expiration: 2031-02-26

Abstract

The utility model relates to a sectional type anticorrosion connecting anchor rod, which comprises an anchor rod body, wherein the anchor rod body comprises a first anchor rod section and a second anchor rod section which are arranged along the axial direction of the anchor rod body in a split way; the anchor rod body connecting piece is connected with the first anchor rod section and the second anchor rod section, the anchor rod connecting piece is in threaded connection with the first anchor rod section and in threaded connection with the second anchor rod section, and the joint of the anchor rod connecting piece and the first anchor rod section and the joint of the anchor rod connecting piece and the second anchor rod section are sealed through the heat-shrinkable tube. The utility model discloses an in the anticorrosive anchor rod of connecting of sectional type, the junction of first stock section and stock connecting piece, stock connecting piece and second stock section junction pass through the pyrocondensation pipe and seal, are difficult to corroded, have improved the anticorrosive life-span of connecting the stock of sectional type. In addition, the heat-shrinkable tube has a simple structure and is convenient to use.

Description

Sectional type anticorrosion connecting anchor rod

Technical Field

The utility model relates to a anticorrosive anchor rod of connecting of sectional type.

Background

Because stock length is limited, need realize the concatenation of two sections stocks through the sleeve under many circumstances, moisture and the moisture that exists in the stratum can get into the junction of two sections stocks, cause the junction to take place corrosion or corrode easily, destroy connection structure, lead to the stock body of rod bearing capacity to weaken. When the ground surface building swings in typhoon and earthquake environments, the anchor rod body can be pulled, the load capacity of the anchor rod body is weakened, the integral failure of the anchoring assembly can be caused, and the danger of collapse or overturn of the body of the ground surface building or other buildings can be caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a better anticorrosive connection stock of sectional type of corrosion resistance.

The utility model discloses an anticorrosive anchor rod of connecting of sectional type adopts following technical scheme:

a sectional type anticorrosive connection stock includes:

the anchor rod body comprises a first anchor rod section and a second anchor rod section which are arranged in a split manner along the axial direction of the anchor rod body;

the anchor rod body connecting piece is connected with the first anchor rod section and the second anchor rod section, is in threaded connection with the first anchor rod section and is in threaded connection with the second anchor rod section, and the joint of the anchor rod connecting piece and the first anchor rod section and the joint of the anchor rod connecting piece and the second anchor rod section are sealed through the heat-shrinkable tube.

Has the advantages that: the utility model discloses an in the anticorrosive anchor rod of connecting of sectional type, the junction of first stock section and stock connecting piece, stock connecting piece and second stock section junction pass through the pyrocondensation pipe and seal, are difficult to corroded, have improved the anticorrosive life-span of connecting the stock of sectional type. In addition, the heat-shrinkable tube has a simple structure and is convenient to use.

Furthermore, the anchor rod body connecting piece is a sleeve, and openings at two ends of the sleeve are respectively used for screwing in the first anchor rod section and the second anchor rod section; the openings at the two ends of the sleeve are sealed by heat shrink tubes. The sleeve is convenient for be connected with the stock section, improves the installation effectiveness.

Furthermore, the length of the heat shrink tube is larger than that of the sleeve, and openings at two ends of the sleeve are sealed through the same heat shrink tube. The sealing effect is better when one heat shrinkable tube is used.

Further, the lower end of the anchor rod body is a bearing end arranged on the bearing seat; the anticorrosive anchor rod of connecting of sectional type still includes:

the bearing end connecting piece is connected with the bearing end of the anchor rod body, and the anchor rod body is in blocking fit with the bearing seat in the extension direction of the anchor rod body or is fixed with the bearing seat through the bearing end connecting piece;

the guide cap is fixed on the bearing seat;

the bag is sleeved outside the anchor rod body and is fixed with the bearing seat;

the direction cap encloses into the protection chamber of the end protection of bearing to the stock body of rod with bearing the seat, bears the end and stretches into the protection intracavity, bears the weight of the seat and is equipped with the injected hole with protection chamber intercommunication, when the slip casting in to the bag, the injected hole can make grout get into in the direction cap.

Has the advantages that: the slip casting hole can make grout get into the direction cap in, protect the end of bearing in the direction cap to play and prevented that underground corrosive gas or moisture from getting into in the direction cap, played the waterproof anticorrosive purpose of bearing seat and stock body of rod cooperation department.

Further, the number of the grouting holes is at least two. When cement slurry is injected, one grouting hole can be used for exhausting, so that the cement slurry can better flow into the protective cavity of the guide cap.

Furthermore, the bearing seat comprises a bearing plate, the guide cap is fixed on one side of the bearing plate, a bearing seat sleeve is fixed on one side of the bearing plate, which is opposite to the guide cap, one end of the bag is fixed with the bearing seat sleeve, and the grouting hole is formed in the bearing plate. The cement paste can conveniently enter the guide cap.

Furthermore, one end of the bag is fixed on the bearing seat through a hoop, a hoop matching ring groove is formed in the bearing seat, the hoop is hooped in the hoop matching ring groove, the bearing seat comprises a bearing seat cover, an annular bulge formed by outward protrusion after the wall of the bearing seat cover is roll-formed is arranged on the bearing seat cover, and at least one side groove wall of the hoop matching groove is formed by the annular bulge. The movement of the hoop is limited, the hoop is prevented from moving up and down, and the fixing effect of the hoop is improved.

Further, bear the seat and include the loading board, the direction cap is fixed in one side of loading board, bears the seat cover and fixes in one side of loading board back to the direction cap, and the loading board border protrusion bears the periphery setting of seat cover to make loading board, bear the seat cover with annular protrusion encloses into staple bolt cooperation annular. The annular bulge on the bearing seat cover forms the hoop matching ring groove, and the structure is simple.

Further, the bearing end connecting piece is an anchoring nut. The anchoring nut has simple structure and low cost.

Drawings

Fig. 1 is a schematic structural view of a sectional type corrosion-resistant connecting anchor rod of embodiment 1 of the present invention;

fig. 2 is a partial structural schematic view of a sectional type corrosion-resistant connecting anchor rod of embodiment 1 of the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 1;

FIG. 4 is an enlarged view of portion B of FIG. 1;

fig. 5 is a schematic structural view of a joint of two anchor rod sections in embodiment 1 of a sectional type corrosion-resistant connecting anchor rod of the present invention;

fig. 6 is a schematic structural view of a sectional type corrosion-resistant connecting anchor rod according to embodiment 12 of the present invention;

fig. 7 is a schematic structural view of a sectional type corrosion-resistant connecting anchor rod according to embodiment 13 of the present invention;

in the figure: 1. an anchor rod body; 101. a carrying end; 102. stretching the end; 103. a first anchor rod segment; 104. a second anchor rod segment; 105. a sleeve; 106. heat shrink tubing; 2. a fixed tube; 3. an inner pouch; 4. an outer pouch; 5. an outer bag seat; 6. a bearing seat; 601. grouting holes; 602. a carrier plate; 603. a load bearing seat cover; 7. an inner bag seat; 8. a grouting pipe; 9. a slip pipe check valve; 10. a pressure control valve; 11. a guide cap; 111. a protective cavity; 12. an anchor nut; 13. an exhaust valve; 14. hooping; 15. an outer bag base plate; 16. an outer bag seat cover; 17. an annular projection; 18. the hoop is matched with the ring groove; 19. an elastic sealing gasket; 20. a pouch grouting pipe; 21. plugging the nut; 22. a single pouch; 23. a bottom carrier plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention, i.e., the described embodiments are only some, but not all embodiments of the invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.

It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The terms "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships that are assumed to be merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

The features and properties of the present invention are described in further detail below with reference to examples.

The utility model discloses embodiment 1 of anticorrosive connection stock of sectional type:

the anchor rod in the embodiment can be suitable for temporary anchoring occasions, such as foundation pit supporting, and can also be suitable for permanent anchoring occasions, such as mountain anchoring, anti-floating anchoring of underground buildings and the like.

As shown in fig. 1 and 2, the sectional type corrosion-resistant connection anchor comprises an anchor rod body 1, a fixing tube 2, a bearing seat 6, an inner bag 3 and an outer bag 4. As shown in fig. 5, the anchor rod body 1 includes a first anchor rod section 103 and a second anchor rod section 104 which are separately arranged along the axial direction of the anchor rod body 1, and the first anchor rod section 103 and the second anchor rod section 104 are connected together by a sleeve 105. An internal thread is arranged in the sleeve 105, openings at two ends of the sleeve 105 are respectively used for screwing in the first anchor rod section 103 and the second anchor rod section 104, the sleeve 105 is in threaded connection with the first anchor rod section 103 and in threaded connection with the second anchor rod section 104, and the first anchor rod section 103 and the second anchor rod section 104 are coaxial. The joints of the sleeve 105 and the first anchor rod section 103 and the joints of the sleeve 105 and the second anchor rod section 104 are sealed by heat shrink tubes 106, that is, the openings at both ends of the sleeve 105 are sealed by heat shrink tubes 106. In this embodiment, the length of heat shrinkable tube 106 is greater than the length of sleeve 105, and the openings at both ends of sleeve 105 are sealed by the same heat shrinkable tube 106. The sleeve in this embodiment constitutes stock body of rod connecting piece, and in other embodiments, stock body of rod connecting piece can also be the connecting block, offers the screw hole on the connecting block. In other embodiments, the shank may include more than three sections, depending on the actual requirements.

The lower end of the fixed tube 2 is fixed with the bearing seat 6, the upper end of the fixed tube 2 is fixed with the outer bag seat 5, the middle part is fixed with the inner bag seat 7, and the inner bag seat 7 is positioned in the outer bag 4. The fixing tube 2 is used for the anchor rod body to pass through. In this embodiment, the number of the fixing pipes is one, and in other embodiments, the number of the fixing pipes may be two or more, and the two or more anchor rod bodies are in one-to-one correspondence with the fixing pipes. The anchor rod body may be a steel bar or a steel cable.

The upper and lower both ends of outer bag 4 are fixed respectively on outer bag seat 5 and bear seat 6, and interior bag 3 is close to the lower extreme of fixed pipe 2 and keeps away from the upper end of fixed pipe 2, and interior bag 3 is in outer bag 4, and interior bag 3 is close to 4 lower extremes of outer bag and keeps away from the setting of 4 upper ends of outer bag.

The upper end and the lower end of the inner bag 3 are respectively fixed on the inner bag seat 7 and the bearing seat 6, and the inner bag 3 is sleeved outside the fixed tube 2 and fixed inside the outer bag 4. During grouting, firstly, grouting is carried out on the inner bag 3, then cement slurry overflowing from the inner bag 3 enters the outer bag 4 to fill the outer bag 4, and the concrete structure is as follows:

as shown in fig. 1, a grouting pipe 8 communicated with a grouting device penetrates through an outer bag seat 5 and an inner bag seat 7 and then extends into the inner bag 3, a grouting pipe check valve 9 is arranged on a part of the grouting pipe 8 extending into the inner bag 3, the grouting pipe check valve 9 has a set opening pressure, the opening pressure is preferably 0.5-2.5Mpa, and grouting is performed on the inner bag 3 after the grouting pressure reaches the opening pressure of the grouting pipe check valve 9.

Be fixed with bag slip casting pipe 20 on inner bag seat 7, bag slip casting pipe 20 one end stretches into outer bag 4, the other end stretches into inner bag 3, the inside passage of bag slip casting pipe 20 forms the slip casting passageway, can outwards bag 4 slip casting through the slip casting passageway, bag slip casting pipe 20 stretches into and is provided with pressure control valve 10 on the part of outer bag 4, pressure control valve 10 is used for opening the slip casting passageway after the cement paste pressure reaches a definite value in inner bag 3, the water supply mud passes through the slip casting passageway and gets into outer bag 4. Pressure control valve 10 is one-way check valve in this embodiment, and pressure control valve 10 is including setting up the valve opening and the cover at valve opening department with the slip casting passageway intercommunication on bag slip casting pipe 20, and after the cement paste pressure exceedes a definite value in the inner bag, the elasticity cover warp under the cement paste pressure and opens the slip casting passageway.

In this embodiment, in order to further make the grouting in the inner bag 3 more sufficient, the opening pressure of the pressure control valve 10 is greater than the opening pressure of the grouting pipe check valve 9, and the opening pressure of the pressure control valve 10 is preferably 1 to 3 Mpa. By increasing the opening pressure of the pressure control valve 10, the cement paste in the inner bag 3 can more fully open the inner bag 3.

The present embodiment in which the pouch injection tube 20 is provided on the top of the inner pouch 3 can prevent the pouch injection tube 20 from being clogged.

As shown in fig. 1 and 3, the outer bag holder in this embodiment includes an outer bag holder plate 15 and an outer bag holder 16 fixed to one side of the outer bag holder plate 15. As shown in fig. 1, the outer bag seat cover 16 is fixed to the lower side of the outer bag seat plate 15.

As shown in fig. 4, the carrier seat 6 includes a carrier plate 602 and a carrier seat 603, the carrier seat 603 is fixed on the upper side of the carrier plate 602, and the inner bag seat 7 includes an inner bag seat plate and an inner bag seat cover, the inner bag seat cover is fixed on the lower side of the inner bag seat plate.

In this embodiment, the ends of the inner bag 3 and the outer bag 4 are fixed by the anchor ear 14. The engagement structure of the hoop 14 with the carrying seat, the inner bag seat and the outer bag seat is the same, and the outer bag seat will be described as an example.

The annular bulge 17 is formed to the evagination after the mantle wall roll forming of outer bag seat cover 16, the external diameter of outer bag seat board 15 is greater than the external diameter of outer bag seat cover 16, the outer fringe of outer bag seat board 15 forms staple bolt cooperation annular 18 with annular bulge 17, a lateral wall of staple bolt cooperation annular 18 is formed by annular bulge 17, staple bolt 14 cramps at staple bolt cooperation annular 18, prevent staple bolt 14 drunkenness from top to bottom, improve the stability of inner bag 3 and outer bag 4. An elastic sealing gasket 19 is arranged in the hoop matching ring groove 18, and the elastic sealing gasket 19 is arranged between the outer bag seat and the outer bag to improve the sealing performance.

Because the bearing seat 6 needs to fix the inner bag 3 and the outer bag 4, the bearing seat 6 is provided with two hoop matching ring grooves 18, and the two hoop matching ring grooves 18 are formed by a bearing seat sleeve, two annular bulges 17 which are arranged on the bearing seat sleeve and are formed by rolling and forming the sleeve wall of the bearing seat sleeve and then protruding outwards, and the edge of the bearing plate 602. The bearing seat cover, the inner bag seat cover and the outer bag seat cover in the embodiment are all bag seat covers used for fixing the bag.

In this embodiment, the bearing seat 6 is fixed with a guide cap 11, and the lower end of the guide cap 11 is a tapered tip. One end of the anchor rod body 1 is a bearing end 101 which is in stop fit with the bearing seat 6 in the axial direction, and the other end is a stretching end 102 for the jack to apply force to tension the anchor rod body. Bear end 101 and stretch into in the direction cap 11 after passing fixed pipe 2, bear end 101 and be provided with anchor nut 12, because bear end 101 be provided with anchor nut screw-thread fit's external screw thread, in order to avoid anchor nut 12 and bear end 101 corrosion, direction cap 11 is enclosed construction, and at the internal protection chamber 111 that protects to bearing end 101, protection chamber 111 separates with the outside, be equipped with grouting hole 601 with protection chamber 111 intercommunication on bearing plate 602 who bears seat 6, grouting hole 601 and inner bag 3 intercommunication, when grouting pipe 8 is to inner bag 3 slip casting, grout can be through grouting hole 601 to pouring into grout into in direction cap 11, the grout of pouring into can protect anchor nut 12 and the screw thread that bears end 101, improve the life of stock. The anchor nut in this embodiment constitutes a load bearing end connector that is connected to the load bearing end. In other embodiments, the bearing end connecting piece can be a split type conical clamping piece, the bearing plate is provided with a conical hole, and the bearing end is fixed on the bearing plate through the wedging action of the conical clamping piece.

In this embodiment, two grouting holes 601 are provided, and one of the two grouting holes 601 is used for exhausting air when cement slurry is injected, so as to facilitate the injection of the cement slurry. In other embodiments, the number of the grouting holes is increased according to the requirement, for example, more than three grouting holes are provided, and when the grouting holes are larger, it is also possible to provide one grouting hole.

When grout pours into the direction cap 11 in, because anchor nut 12 and bear and do not have sealedly between the seat 6, grout flows into fixed pipe 2 from the clearance easily, at last, flow out through outer bag seat 5, in order to solve this problem, set up plugging nut 21 on the stock body of rod 1, plugging nut 21 is in outer bag seat 5 upside and with outer bag seat 5 seal fit, be provided with sealed fat between plugging nut and the stock body of rod, plugging nut and anchor nut 12 are taut with the part that the stock body of rod 1 is in fixed pipe 2, and under plugging nut's sealing action, get into the grout in the fixed pipe 2 through the space between anchor nut 12 and the seat of bearing 6, can not flow out in the fixed pipe 2.

In this embodiment, in order to facilitate air exhaust, the air exhaust valve 13 is disposed on the outer bag seat plate 15, and air in the outer bag 4 can be exhausted through the air exhaust valve 13, which is beneficial to injecting cement slurry in the outer bag 4.

Use the utility model discloses a sectional type is anticorrosive connects stock when the anchor operation, at first punches the target location, in inserting the hole of having beaten with the anticorrosive connection stock of sectional type after single, after reaching the target location, through slip casting equipment to pouring into grout in the slip casting pipe 8, slip casting pipe check valve 9 is opened, grout passes through 8 inside 3 slip casting bags of slip casting pipe, after the slip casting is full of in 3 interior bag of inner bag, also is full of the grout in the protection chamber 111 of guide cap 11. After the inner bag 3 is filled with cement paste, the pressure in the inner bag 3 is increased, and after the pressure in the inner bag 3 reaches the opening pressure of the pressure control valve 10, the cement paste is injected into the outer bag 4 through the pressure control valve 10 until the grouting of the outer bag 4 is completed.

Because the inner bag 3 is positioned at the lower position in the outer bag 4, the lower part of the outer bag 4 can be firstly propped open by the inner bag 3, and the lower part of the outer bag 4 is prevented from forming a cone tip to influence the anchoring effect. The opening pressure of the pressure control valve 10 is greater than that of the grouting pipe check valve 9, so that the inner bag 3 can be fully opened, the bottom of the outer bag is fully supported, and the anchoring effect is further improved. The bottom of the outer bag can overcome the resistance of sediment at the bottom of the anchor rod hole through the arranged inner bag, and the outer bag is fully opened, so that the lower end of the expanding head is larger in size, and the bearing effect is better.

The utility model discloses a concrete embodiment 2 of anticorrosive connection stock of sectional type, the structure of the anticorrosive connection stock of sectional type in this embodiment only lies in with the difference of above-mentioned embodiment: in this embodiment, the openings at the two ends of the sleeve are sealed by two heat shrinkable tubes, and one heat shrinkable tube seals each opening.

The utility model discloses a concrete embodiment 3 of anticorrosive connection stock of sectional type, the structure of the anticorrosive connection stock of sectional type in this embodiment only lies in with the difference of above-mentioned embodiment: the opening pressure of the check valve of the grouting pipe in this embodiment is equal to the opening pressure of the pressure control valve. In other embodiments, the opening pressure of the slip pipe check valve may be slightly less than the opening pressure of the pressure control valve.

The utility model discloses a concrete embodiment 4 of anticorrosive connection stock of sectional type, the structure of the anticorrosive connection stock of sectional type in this embodiment only lies in with the difference of above-mentioned embodiment: the pressure control valve is directly arranged on the inner bag, a valve seat is required to be arranged on the inner bag at the moment, and the pressure control valve is arranged on the valve seat.

The utility model discloses a concrete embodiment 5 of anticorrosive connection stock of sectional type, the structure of the anticorrosive connection stock of sectional type in this embodiment only lies in with the difference of above-mentioned embodiment: in this embodiment, the lower extreme direct mount of inner bag is on fixed pipe, and this kind of condition is better in the occasion effect that has only a fixed pipe. At the moment, the protective cavity in the guide cap is communicated with the outer bag through the grouting hole.

The utility model discloses a concrete embodiment 6 of anticorrosive connection stock of sectional type, the structure of the anticorrosive connection stock of sectional type in this embodiment only lies in with the difference of above-mentioned embodiment: in this embodiment, the pressure control valve is provided on the portion of the bladder grouting pipe inside the inner bladder.

The utility model discloses a concrete embodiment 7 of anticorrosive connection stock of sectional type, the structure of the anticorrosive connection stock of sectional type in this embodiment only lies in with the difference of above-mentioned embodiment: in this embodiment, the guide cap is directly provided with a grouting hole, and cement slurry is injected into the guide cap through external grouting.

The utility model discloses a concrete embodiment 8 of anticorrosive connection stock of sectional type, the structure of the anticorrosive connection stock of sectional type in this embodiment only lies in with the difference of above-mentioned embodiment: the outer bag and the inner bag are bonded on the bearing seat body. At this time, the hoop fitting ring groove does not need to be arranged on the bearing seat body, of course, in other embodiments, the hoop can also be directly hooped on the outer peripheral surface of the bearing seat cover, and at this time, the hoop fitting ring groove does not need to be arranged.

The utility model discloses a concrete embodiment 9 of anticorrosive connection stock of sectional type, the structure of the anticorrosive connection stock of sectional type in this embodiment only lies in with the difference of above-mentioned embodiment: in this embodiment, outer bag seat and inner bag seat are all fixed on the stock body of rod, need not set up fixed pipe this moment. In other embodiments, the fixing tube can be replaced by a fixing rod, and two ends of the fixing rod are respectively fixed with the outer bag seat and the bearing seat.

The utility model discloses a concrete embodiment 10 of anticorrosive connection stock of sectional type, the structure of the anticorrosive connection stock of sectional type in this embodiment only lies in with the difference of above-mentioned embodiment: in this embodiment, the upper end of the inner bag is directly fixed on the fixing tube, in order to ensure the sealing performance, the effect is better in the situation that only one fixing tube is provided, and the grouting tube is directly inserted into the inner bag and is in sealing fit with the inner bag in a bonding, bundling and other modes.

The utility model discloses a concrete embodiment 11 of anticorrosive connection stock of sectional type, the structure of the capsule stock of area enlarged footing in this embodiment only lies in with the difference of above-mentioned embodiment: the rubber sleeve is fixed on the part of the anchor rod body in the fixed pipe and is in sealing fit with the fixed pipe, so that cement paste is prevented from flowing out of the fixed pipe. In other embodiments, the anchoring nut can be fixed on the bearing plate, so that cement paste is prevented from entering the fixing pipe from a gap between the anchoring nut and the bearing plate, and the cement paste is prevented from flowing out. In other embodiments, a sealing gasket is arranged between the anchoring nut and the bearing seat for sealing, so that cement slurry is prevented from entering the fixing pipe.

The utility model discloses a concrete embodiment 12 of anticorrosive connection stock of sectional type, the structure of the capsule stock of area enlarged footing in this embodiment only lies in with the difference of above-mentioned embodiment:

as shown in fig. 6, the sectional type corrosion-proof connection anchor rod in the embodiment adopts a single bag 22.

The utility model discloses a concrete embodiment 13 of anticorrosive connection stock of sectional type, the structure of the capsule stock of area enlarged footing in this embodiment only lies in with the difference of above-mentioned embodiment:

as shown in fig. 7, the sectional corrosion-resistant anchor in this embodiment is supported by the bottom bearing plate 23 without a bladder.

The above description is only for the preferred embodiment of the present invention, and the present invention is not limited thereto, the protection scope of the present invention is defined by the claims, and all structural changes equivalent to the contents of the description and drawings of the present invention should be included in the protection scope of the present invention.

Claims

1. A sectional type anticorrosion connection anchor rod, comprising:

the heat-shrinkable tube type heat-shrinkable tube is characterized in that the anchor rod body connecting piece is connected with the first anchor rod section and the second anchor rod section, is in threaded connection with the first anchor rod section and is in threaded connection with the second anchor rod section, and the joint of the anchor rod connecting piece and the first anchor rod section and the joint of the anchor rod connecting piece and the second anchor rod section are sealed through heat-shrinkable tubes.

2. The segmented corrosion resistant connection anchor according to claim 1, wherein said anchor shank connector is a sleeve, and openings at both ends of the sleeve are respectively used for screwing in a first anchor section and a second anchor section; the openings at the two ends of the sleeve are sealed by heat shrink tubes.

3. The segmented corrosion resistant connection anchor rod of claim 2, wherein the length of the heat shrinkable tube is greater than that of the sleeve, and openings at both ends of the sleeve are sealed by the same heat shrinkable tube.

4. A segmented corrosion resistant connection anchor according to claim 1, 2 or 3 in which the anchor shank lower end is a load bearing end disposed on a load bearing seat; the anticorrosive anchor rod of connecting of sectional type still includes:

the guide cap is fixed on the bearing seat;

5. A segmented corrosion resistant connection anchor according to claim 4 in which at least two grouting holes are provided.

6. The segmented corrosion resistant connection anchor of claim 4, wherein the bearing seat comprises a bearing plate, a guide cap is fixed to one side of the bearing plate, a bearing sleeve is fixed to one side of the bearing plate opposite to the guide cap, one end of the bladder is fixed to the bearing sleeve, and the grouting hole is formed in the bearing plate.

7. The anchor rod of claim 4, wherein one end of the bladder is fixed to the bearing seat by a hoop, the bearing seat is provided with a hoop fitting ring groove, the hoop is tightly hooped in the hoop fitting ring groove, the bearing seat comprises a bearing seat cover, the bearing seat cover is provided with an annular protrusion formed by rolling and forming a sleeve wall of the bearing seat cover and protruding outwards, and at least one side groove wall of the hoop fitting groove is formed by the annular protrusion.

8. The segmented corrosion resistant attachment anchor of claim 7, wherein said bearing seat includes a bearing plate, a guide cap secured to one side of the bearing plate, a bearing sleeve secured to a side of the bearing plate opposite the guide cap, the bearing plate edge projecting beyond the periphery of the bearing sleeve such that the bearing plate, bearing sleeve and said annular protrusions define said hoop engaging ring groove.

9. The segmented corrosion resistant connection anchor according to claim 4 wherein the load end connector is an anchor nut.