A prefabricated anchor rod and anchoring structure with strong pull-out resistance

Abstract

The present invention relates to the field of prefabricated anchor rods, and in particular to a prefabricated anchor rod and an anchoring structure with strong pull-out resistance, including a prefabricated pull-out resistant anchor rod, wherein the prefabricated pull-out resistant anchor rod consists of an anchor rod section and a free section. The anchor rod section is arranged inside an anchor body, and a thread is arranged on the outer periphery of the free section. A fixing nut is threadedly connected to one side of the outer periphery of the free section, and a tightening sleeve is threadedly connected to the fixing nut on the side away from the anchor body. A handwheel is fixedly connected to one side of the outer periphery of the tightening sleeve, and an external thread is arranged on the side of the outer periphery of the anchor rod section away from the free section. The present invention can compress a sealing plate through a sealing sleeve, so that the connecting pipe and the protective sleeve on the sealing plate can completely wrap the top of the anchor body, thereby realizing protection of the top of the anchor body, thereby effectively preventing the weak part of the end of the anchor body from being damaged.

Description

Technical Field

[0001] The invention relates to the field of prefabricated anchor rods, and in particular to a prefabricated anchor rod with strong pull-out resistance and an anchoring structure. Background Art

[0002] Anchor rod is a commonly used structure in geotechnical engineering. It is a tension rod and its system anchored in the stratum, used to transfer the load of the external structure to the stratum to keep the external structure stable. In the anchoring operation for the rock and soil layer, the traditional anchoring scheme is often used when cooperating with the anchor drilling of the rock and soil layer, which will increase the cost of on-site construction production;

[0003] Specific reference is made to Chinese patent document CN216999689U, which discloses a prefabricated anchor rod for anti-floating of underground construction projects, the prefabricated anchor rod comprising a concrete rod body, anchor bars are fixed in the concrete rod body, the lower part of the concrete rod body is formed as a mounting portion for facilitating the installation of the prefabricated anchor rod, a rod tip is fixedly arranged at the bottom end of the mounting portion; a fixing portion for fixing to an external base plate is arranged on the upper part of the concrete rod body, and an anchoring end plate for auxiliary fixing portion and external base plate is fixedly arranged on the fixing portion, in the prefabricated anchor rod, the prefabricated anchor rod is directly manufactured in a factory or on-site, and the prefabricated anchor rod can be directly pressed into the installation position through the rod tip; so as to solve the defects of the prior art such as mud blocks mixed in the anchor rod slurry, local necking, low forming strength and large discreteness, so that it can be successfully applied in soft soil areas, and the quality reliability is high.

[0004] However, since prefabricated anchor bodies often have loose connections with poured concrete, resulting in unstable anchoring devices and low anchoring force, and since the ground water and soil are corrosive to the anchor rod body, anchor corrosion protection is an important issue. The connection between the anchor rod and the anchoring structure will be eroded by the ground water and soil during use, resulting in reduced bearing capacity, and durability and bearing capacity are difficult to be effectively guaranteed. Therefore, we propose a prefabricated anchor rod and anchoring structure with strong pull-out resistance to solve the above-mentioned problems. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the background technology and to propose a prefabricated anchor rod and anchoring structure with strong pull-out resistance.

[0006] To achieve the above purpose, the technical solution adopted by the present invention is: a prefabricated anchor rod with strong pull-out resistance, including a prefabricated pull-out anchor rod, the prefabricated pull-out anchor rod consists of two parts: an anchor rod section and a free section, the anchor rod section is arranged inside the anchor body, the outer periphery of the free section is provided with a thread, one side of the outer periphery of the free section is threadedly connected with a fixing nut, the side of the fixing nut away from the anchor body is threadedly connected with a fastening sleeve, the outer side of the fastening sleeve is fixedly connected with a handwheel, and the outer periphery of the anchor rod section is provided with an external thread on the side away from the free section.

[0007] Preferably, an anchoring structure of a prefabricated anchor with strong pull-out resistance comprises an anchor body, a threaded opening is provided in the middle of one end of the anchor body, the anchor body is threadedly connected to a connecting section through the threaded opening, the connecting section is fixedly connected to the middle of one end of the pull-out seat close to the anchor body, an internal thread is provided inside the connecting section, the connecting section is threadedly connected to the anchor rod section, a slide is provided inside the connecting section, a ring block is slidably connected inside the slide, the ring block is fixedly connected to one end of the anchor rod section close to a conical block, a plurality of openings are provided in the middle of the outer periphery of the pull-out seat, the openings are all connected to the inside of the slide, and the outer side of the end of the ring block away from the conical block is fixedly connected with evenly distributed ribs.

[0008] Preferably, the middle part of the end of the anti-pull-out seat away from the connecting section is fixedly connected to the tail stock, a guide ball is arranged in the middle part of the tail stock, the middle parts of both ends of the guide ball are fixedly connected to the top sleeve, the middle parts of the guide ball and the top sleeve are penetrated by limiting columns, the limiting columns are slidably connected to the guide ball and the top sleeve, the two ends of the limiting columns are penetrated by connecting blocks, and the connecting blocks are slidably connected to both sides of the middle part of the tail stock.

[0009] Preferably, a connecting groove is provided on the outer side of the middle part of one end of the anchor body close to the airbag, a connecting tube is provided inside the connecting groove, the connecting tube is fixedly connected to the middle part of one end of the sealing plate close to the anchor body, a protective sleeve is fixedly connected to the outer side of the middle part of one end of the sealing plate close to the anchor body, a sealing ring is fixedly connected to the middle part of the outer periphery of the protective sleeve, an airbag is provided inside the protective sleeve, and the interior of the airbag is connected to the interior of the sealing ring.

[0010] Preferably, the ends of the ribs away from the ring block are slidably connected inside the guide grooves, the guide grooves are arranged inside the end wall of the anti-pull-out seat away from the connecting section, and the middle outer periphery of the end of the anti-pull-out seat away from the connecting section is provided with through holes, and the through holes are connected to the guide grooves.

[0011] Preferably, the middle part of one end of the ring block away from the conical block is fixedly connected with a guide column, the end of the guide column away from the ring block passes through the middle part of one end of the anti-pull-out seat away from the connecting section, and the guide column is slidably connected to the anti-pull-out seat.

[0012] Preferably, the outer peripheries of the connection blocks are rotatably connected with uniformly distributed reinforcing ribs, the reinforcing ribs on the outer peripheries of the two connection blocks are alternately distributed, and the ends of the reinforcing ribs away from the connection blocks are arranged to be bent outwards.

[0013] Preferably, the ends of the reinforcing ribs away from the connecting block are arranged inside the tail groove, the tail grooves are opened on the side away from the anti-pullout seat in the middle of the outer periphery of the tail stock, and one end of the limiting column is fixedly connected to the middle of the inner wall of the tail stock.

[0014] Preferably, a protective sleeve is fixedly connected to the middle part of one end of the sealing plate away from the anchor body, and the sealing plate and the protective sleeve are both slidably connected to the anchor rod section and the free section.

[0015] Preferably, the protective sleeve is engaged inside the interface, the interface is arranged at one end of the sealing sleeve close to the sealing plate, and the sealing sleeve is threadedly connected to the free section.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. When the pile embedding work is completed after the concrete solidifies, people can then put the sealing plate on the outer periphery of the free section so that the connecting pipe can be inserted into the connecting groove, and the top of the anchor body can be inserted into the protective sleeve. People can then tighten the sealing sleeve, and the protective sleeve can be connected to the interface by screwing the sealing sleeve in. The sealing sleeve can then be used to press the sealing plate so that the connecting pipe and the protective sleeve on the sealing plate can completely wrap the top of the anchor body, thereby protecting the top of the anchor body and effectively preventing damage to the weak end of the anchor body.

[0018] 2. In the process of putting the protective sleeve on the end of the anchor body, the anchor body can compress the airbag inside the protective sleeve, so that the gas inside the airbag can be forced back into the connected sealing ring, so that the sealing ring can be pushed outward, so that the anchor body can be stuck in the protective sleeve. Later, in the process of sealing the hole, the external pressure can force the gas back into the airbag, so as to effectively improve the sealing of the end of the anchor body and reduce the infiltration of water vapor, so that the service life of the anchor body can be effectively improved. At the same time, the protective sleeve and the sealing sleeve on the sealing plate can effectively protect the contact part between the free section and the soil, so as to prevent the moisture and other corrosive components in the soil from eroding the prefabricated pull-out anchor rod.

[0019] 3. Before burying the prefabricated pull-out anchor rod, people can add the pull-out seat to the rear of the anchor body, and connect it with the thread at the tail of the anchor rod section through the connecting section, so that people can fix the pull-out seat thread to the tail of the anchor body to realize the installation work. During the screwing process, the anchor rod section will support the conical block inside the pull-out seat, and then the anchor rod section can apply a pushing force to the conical block, thereby pushing the ring block to slide inside the slideway. When the ring block starts to slide, the ribs at the end of the ring block will begin to bend and open outward under the guidance of the guide groove. When the connecting section is completely screwed into the threaded mouth, the pull-out seat is fixed. At this time, the tail of the rib will extend out through the through hole. The ribs opened outward can greatly improve the connection tightness between the prefabricated pull-out anchor rod and the concrete when the concrete is poured later, thereby greatly improving the pull-out resistance of the prefabricated pull-out anchor rod.

[0020] 4. When the ring block is pushed and moved, the guide column at the end of the ring block can push the connecting block inside the tail seat, so that the two connecting blocks can be close to each other. In the process of the connecting blocks approaching, the reinforcing ribs on the connecting block will contact the guide ball, and the curved surface on the guide ball can force the reinforcing ribs apart, so that the reinforcing ribs are folded outward. The tail groove can guide the reinforcing ribs in this process. At the same time, the reinforcing ribs on the two connecting blocks are staggered with each other, so that the prefabricated pull-out anchor rod can be more firmly engaged with the concrete in the subsequent concrete pouring, which is beneficial to further improve the pull-out performance of the prefabricated pull-out anchor rod when it is used, and when pouring concrete, the concrete can enter the prefabricated pull-out anchor rod through the tail groove and the opening, thereby increasing the connection stability between the concrete and the prefabricated pull-out anchor rod, which is beneficial to actual use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a left-view stereoscopic structural schematic diagram of a prefabricated anchor rod and anchoring structure with strong pull-out resistance according to the present invention;

[0022] Figure 2 It is a right-side perspective structural schematic diagram of a prefabricated anchor rod and anchoring structure with strong pull-out resistance according to the present invention;

[0023] Figure 3 It is a schematic diagram of the local structure of a prefabricated anchor rod with strong pull-out resistance and a connecting section of an anchoring structure of the present invention;

[0024] Figure 4 This is a schematic diagram of the internal structure of a prefabricated anchor rod with strong pull-out resistance and a pull-out seat of an anchoring structure according to the present invention;

[0025] Figure 5 This is a second schematic diagram of the internal structure of a prefabricated anchor rod with strong pull-out resistance and a pull-out seat of an anchoring structure of the present invention;

[0026] Figure 6This is a schematic diagram of the internal structure of a prefabricated anchor rod with strong pull-out resistance and a tailstock of an anchoring structure of the present invention;

[0027] Figure 7 It is a schematic diagram of the local structure of a prefabricated anchor rod with strong pull-out resistance and a connecting groove of an anchoring structure of the present invention;

[0028] Figure 8 The present invention is a schematic diagram of the partial structure of a prefabricated anchor rod with strong pull-out resistance and a protective cover of the anchoring structure.

[0029] 1. Prefabricated pull-out anchor rod; 101. Anchor body; 102. Pull-out seat; 103. Tail seat; 104. Opening; 105. Protective cover; 106. Closing plate; 107. Sealing ring; 108. Fixing nut; 109. Free section; 110. Fastening sleeve; 111. Hand wheel; 112. Sealing sleeve; 113. Tail groove; 114. Through hole; 115. Connecting section; 116. Anchor rod section; 117. Air bag; 118. Reinforcement rib; 119. Rib; 120. Ring block; 121. Conical block; 122. Interface; 123. Slideway; 124. Guide groove; 125. Guide column; 126. Guide ball; 127. Top sleeve; 128. Limiting column; 129. Connecting block; 130. Connecting groove; 131. Connecting pipe; 132. Protective cover; 133. Threaded mouth. DETAILED DESCRIPTION

[0030] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0031] like Figure 1-Figure 8 A prefabricated anchor with strong pull-out resistance shown in the figure comprises a prefabricated pull-out anchor 1, which consists of an anchor section 116 and a free section 109. The anchor section 116 is arranged inside the anchor body 101, and the free section 109 is provided with threads on its outer periphery. A fixing nut 108 is threadedly connected to one side of the free section 109 on its outer periphery. A fastening sleeve 110 is threadedly connected to the fixing nut 108 on one side away from the anchor body 101. A hand wheel 111 is fixedly connected to one side of the fastening sleeve 110 on its outer periphery. An external thread is provided to one side of the anchor section 116 on its outer periphery away from the free section 109.

[0032] Furthermore, in specific implementation and actual use, people can insert the prefabricated pull-out anchor rod 1 into the drilled hole, and then people can pour concrete into the hole, so that the prefabricated pull-out anchor rod 1 can be sealed inside the hole. When the concrete solidifies, the pile embedding work is completed. Then people can first screw the fixing nut 108 onto the free section 109, and then clamp the outer end of the fixing nut 108 through the bayonet at the end of the fastening sleeve 110. The hand wheel 111 can assist people in rotating the fixing nut 108, so that the fixing nut 108 can be screwed in, which is beneficial to the installation of the fixing nut 108. The sealing sleeve 112 can be supported by the fixing nut 108 to prevent the sealing sleeve 112 from loosening during use, which is beneficial to actual use.

[0033] An anchor structure of a prefabricated anchor rod with strong pull-out resistance, comprising an anchor body 101, a threaded opening 133 is provided in the middle of one end of the anchor body 101, the anchor body 101 is threadedly connected with a connecting section 115 through the threaded opening 133, the connecting section 115 is fixedly connected to the middle of one end of the pull-out seat 102 close to the anchor body 101, an internal thread is provided inside the connecting section 115, the connecting section 115 is threadedly connected with an anchor rod section 116, a slideway 123 is provided inside the connecting section 115, and the slideway 123 is provided inside A ring block 120 is slidably connected, and a conical block 121 is fixedly connected to one end of the ring block 120 close to the anchor section 116. A plurality of openings 104 are opened in the middle of the outer periphery of the pull-out seat 102, and the openings 104 are all connected to the inside of the slideway 123. The outer side of the end of the ring block 120 away from the conical block 121 is fixedly connected to uniformly distributed ribs 119. The anchor body 101 and the pull-out seat 102 are both conical in shape, with a small diameter at the end close to the free section 109 and a large diameter at the end away from the free section 109.

[0034] Furthermore, in the specific implementation, before burying the prefabricated pull-out anchor 1, people can add the pull-out seat 102 to the rear of the anchor body 101, and can connect with the thread at the tail of the anchor segment 116 through the connecting segment 115, so that people can fix the pull-out seat 102 thread to the tail of the anchor body 101 to achieve the installation work. During the screwing process, the anchor segment 116 will push against the conical block 121 inside the pull-out seat 102, and then the anchor segment 116 can apply a pushing force to the conical block 121, so that the ring block 120 can be pushed in The slideway 123 slides inside, and when the ring block 120 starts to slide, the ribs 119 at the end of the ring block 120 will begin to bend and open outward under the guidance of the guide groove 124. When the connecting section 115 is completely screwed into the threaded opening 133, the anti-pullout seat 102 is fixed. At this time, the tail of the rib 119 will extend out through the through hole 114. The ribs 119 that are opened outward can greatly improve the connection tightness between the prefabricated anti-pullout anchor rod 1 and the concrete when the concrete is poured later, thereby greatly improving the anti-pullout ability of the prefabricated anti-pullout anchor rod 1.

[0035] The tailstock 103 is fixedly connected to the middle of one end of the anti-pullout seat 102 away from the connecting section 115, a guide ball 126 is arranged in the middle of the tailstock 103, a top sleeve 127 is fixedly connected to the middle of both ends of the guide ball 126, and the middle of the guide ball 126 and the top sleeve 127 are penetrated by a limiting column 128, and the limiting column 128 is slidably connected to the guide ball 126 and the top sleeve 127, and the two ends of the limiting column 128 are penetrated by a connecting block 129, and the connecting block 129 is slidably connected to both sides of the middle of the tailstock 103. The outer periphery of the connection block 129 is rotatably connected with uniformly distributed reinforcing ribs 118, and the reinforcing ribs 118 on the outer periphery of the two connection blocks 129 are alternately distributed, and the end of the reinforcing rib 118 away from the connection block 129 is set to be bent outward, and the end of the reinforcing rib 118 away from the connection block 129 is set inside the tail groove 113, and the tail groove 113 is opened on the side of the middle of the outer periphery of the tail stock 103 away from the anti-pulling seat 102, and one end of the limiting column 128 is fixedly connected to the middle of the inner wall of the tail stock 103;

[0036] Furthermore, in the specific implementation, when the ring block 120 is pushed and moved, the guide column 125 at the end of the ring block 120 can push the connecting block 129 inside the tail seat 103, so that the two connecting blocks 129 can be close to each other. In the process of the connecting blocks 129 approaching each other, the reinforcing ribs 118 on the connecting block 129 will contact the guide ball 126, and the curved surface on the guide ball 126 can force the reinforcing ribs 118 open, so that the reinforcing ribs 118 are folded outward, and the tail groove 113 can guide the reinforcing ribs 118 in this process. At the same time, the reinforcing ribs 118 on the two connecting blocks 129 are staggered with each other, so that the prefabricated pull-out anchor rod 1 can be more firmly engaged with the concrete in the subsequent concrete pouring, which is beneficial to further improve the pull-out performance of the prefabricated pull-out anchor rod 1 when it is used, and when pouring concrete, the concrete can enter the prefabricated pull-out anchor rod 1 through the tail groove 113 and the opening 104, thereby increasing the connection stability between the concrete and the prefabricated pull-out anchor rod 1, which is beneficial to actual use.

[0037] A connecting groove 130 is provided on the outer middle part of one end of the anchor body 101 close to the airbag 117, a connecting pipe 131 is arranged inside the connecting groove 130, the connecting pipe 131 is fixedly connected to the middle part of one end of the sealing plate 106 close to the anchor body 101, a protective sleeve 105 is fixedly connected to the outer middle part of one end of the sealing plate 106 close to the anchor body 101, a sealing ring 107 is fixedly connected to the middle part of the outer periphery of the protective sleeve 105, an airbag 117 is arranged inside the protective sleeve 105, the interior of the airbag 117 is connected with the interior of the sealing ring 107, a protective sleeve 132 is fixedly connected to the middle part of one end of the sealing plate 106 away from the anchor body 101, the sealing plate 106 and the protective sleeve 132 are both slidably connected to the anchor rod section 116 and the free section 109, the protective sleeve 132 is clamped inside the interface 122, the interface 122 is arranged at one end of the sealing sleeve 112 close to the sealing plate 106, and the sealing sleeve 112 is threadedly connected to the free section 109;

[0038] Furthermore, in a specific implementation, people can sleeve the sealing plate 106 onto the outer periphery of the free section 109, so that the connecting tube 131 can be inserted into the connecting groove 130, and the top of the anchor body 101 can be inserted into the protective sleeve 105. Then, people can tighten the sealing sleeve 112, and the protective sleeve 132 can be connected to the interface 122 by screwing the sealing sleeve 112 in. Then, the sealing plate 106 can be pressed by the sealing sleeve 112, so that the connecting tube 131 and the protective sleeve 105 on the sealing plate 106 can completely wrap the top of the anchor body 101, thereby protecting the top of the anchor body 101, thereby effectively preventing the weak part of the end of the anchor body 101 from being damaged. At the same time, in the process of sleevening the protective sleeve 105 on the end of the anchor body 101, The anchor body 101 can compress the airbag 117 inside the protective cover 105, so that the gas inside the airbag 117 can be forced back into the connected sealing ring 107, so that the sealing ring 107 can be pushed outward, so that the anchor body 101 can be stuck in the protective cover 105. Later, in the process of sealing the hole, the external pressure can force the gas back into the airbag 117, so as to effectively improve the sealing of the end of the anchor body 101 and reduce the infiltration of water vapor, so that the service life of the anchor body 101 can be effectively improved. At the same time, the protective cover 132 and the sealing cover 112 on the sealing plate 106 can effectively protect the free section 109 and the soil contact part, so as to prevent the moisture and other corrosive components in the soil from corroding the prefabricated pull-out anchor rod 1.

[0039] Working principle:

[0040] In actual use, people can insert the prefabricated anti-pullout anchor rod 1 into the drilled hole, and then people can pour concrete into the drilled hole, so that the prefabricated anti-pullout anchor rod 1 can be sealed inside the drilled hole. When the concrete solidifies, the pile embedding work is completed. Then people can put the sealing plate 106 on the outer periphery of the free section 109, so that the connecting pipe 131 can be inserted into the connecting groove 130, and the top of the anchor body 101 can be inserted into the protective sleeve 105. Then people can tighten the sealing sleeve 112, and the protective sleeve 132 can be connected to the interface 122 by screwing the sealing sleeve 112 in. Then the sealing sleeve 112 can press the sealing plate 106, so that the connecting pipe 131 on the sealing plate 106 and the protective sleeve 105 can be connected The top of the anchor body 101 is completely wrapped, so that the top of the anchor body 101 can be protected, thereby effectively preventing the weak part of the end of the anchor body 101 from being damaged. At the same time, in the process of putting the protective cover 105 on the end of the anchor body 101, the air bag 117 inside the protective cover 105 can be compressed by the anchor body 101, so that the gas inside the air bag 117 can be forced back to the connected sealing ring 107, so that the sealing ring 107 can be pushed outward, so that the anchor body 101 can be stuck in the protective cover 105. Later, in the process of sealing the hole, the external pressure can force the gas back into the air bag 117, thereby effectively improving the sealing of the end of the anchor body 101 and reducing the infiltration of water vapor. The service life of 1 can be effectively improved. At the same time, the protective sleeve 132 and the sealing sleeve 112 on the sealing plate 106 can effectively protect the contact part between the free section 109 and the soil, so as to prevent the moisture and other corrosive components in the soil from corroding the prefabricated anti-pullout anchor rod 1. Then, people can first screw the fixing nut 108 onto the free section 109, and then people can clamp the outer end of the fixing nut 108 through the bayonet at the end of the fastening sleeve 110. The hand wheel 111 can assist people in rotating the fixing nut 108, so that the fixing nut 108 can be screwed in, which is beneficial to the installation of the fixing nut 108. The sealing sleeve 112 can be pressed against by the fixing nut 108 to prevent the sealing sleeve 112 from loosening during use, which is beneficial to In actual use, before burying the prefabricated pull-out anchor 1, people can add the pull-out seat 102 to the rear of the anchor body 101, and can connect with the thread at the tail of the anchor segment 116 through the connecting segment 115, so that people can thread the pull-out seat 102 to the tail of the anchor body 101 to achieve the installation work. During the screwing process, the anchor segment 116 will support the conical block 121 inside the pull-out seat 102, and then the anchor segment 116 can apply a pushing force to the conical block 121, so as to push the ring block 120 to slide inside the slideway 123. When the ring block 120 starts to slide, the ribs 119 at the end of the ring block 120 will begin to bend and open outward under the guidance of the guide groove 124. When the connecting segment 115 is completely screwed into the threaded opening 133,After the anti-pullout seat 102 is fixed, the tail of the rib 119 will extend through the through hole 114. The rib 119 opened outward can greatly improve the connection tightness between the prefabricated anti-pullout anchor rod 1 and the concrete when the concrete is poured later, thereby greatly improving the anti-pulling ability of the prefabricated anti-pullout anchor rod 1. At the same time, when the ring block 120 is pushed and moved, the guide column 125 at the end of the ring block 120 can push the connecting block 129 inside the tail seat 103, so that the two connecting blocks 129 can be close to each other. In the process of the connecting blocks 129 approaching each other, the reinforcing rib 118 on the connecting block 129 will contact the guide ball 126, and the guide ball The curved surface on 126 can force the reinforcing rib 118 open, so that the reinforcing rib 118 is folded outward, and the reinforcing rib 118 can be guided in this process through the tail groove 113. At the same time, the reinforcing ribs 118 on the two connecting blocks 129 are staggered, so that the prefabricated pull-out anchor rod 1 can bite with the concrete more firmly in the subsequent concrete pouring, which is conducive to further improving the pull-out performance of the prefabricated pull-out anchor rod 1 when it is used. When pouring concrete, the concrete can enter the interior of the prefabricated pull-out anchor rod 1 through the tail groove 113 and the opening 104, thereby increasing the connection stability between the concrete and the prefabricated pull-out anchor rod 1, which is conducive to practical use.

[0041] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. An anchoring structure of a prefabricated anchor rod with strong pull-out resistance, comprising a prefabricated pull-out resistance anchor rod (1) and an anchor body (101), characterized in that: The prefabricated pull-out anchor (1) consists of an anchor section (116) and a free section (109). The anchor section (116) is arranged inside the anchor body (101). The free section (109) is provided with threads on its outer circumference. A fixing nut (108) is threadedly connected to one side of the outer circumference of the free section (109). A tightening sleeve (110) is threadedly connected to the side of the fixing nut (108) away from the anchor body (101). A hand wheel (111) is fixedly connected to one side of the outer circumference of the tightening sleeve (110). An external thread is provided on the side of the outer circumference of the anchor section (116) away from the free section (109). A threaded opening (133) is provided in the middle of one end of the anchor body (101). The anchor body (101) is provided with a threaded opening (133). The threaded opening (133) is threadedly connected with a connecting section (115), the connecting section (115) is fixedly connected to the middle of one end of the anti-pullout seat (102) close to the anchor body (101), an internal thread is arranged inside the connecting section (115), the connecting section (115) is threadedly connected to the anchor rod section (116), a slideway (123) is arranged inside the connecting section (115), a ring block (120) is slidably connected inside the slideway (123), one end of the ring block (120) close to the anchor rod section (116) is fixedly connected to a conical block (121), a plurality of openings (104) are opened in the middle of the outer periphery of the anti-pullout seat (102), the openings (104) are all connected to the inside of the slideway (123), and the ring block (120) is fixedly connected to the anchor rod section (116). The outer side of one end of the block (120) away from the conical block (121) is fixedly connected with uniformly distributed ribs (119); the middle part of one end of the anti-pullout seat (102) away from the connecting section (115) is fixedly connected with the tailstock (103); a guide ball (126) is arranged in the middle part of the tailstock (103); the middle parts of both ends of the guide ball (126) are fixedly connected with a top sleeve (127); the middle parts of the guide ball (126) and the top sleeve (127) are penetrated by a limiting column (128); the limiting column (128) is slidably connected with the guide ball (126) and the top sleeve (127); the two ends of the limiting column (128) are penetrated by a connecting block (129); the connecting block (129) is slidably connected to the middle part of the tailstock (103); On both sides of the part, the outer circumference of the connection block (129) is rotatably connected with uniformly distributed reinforcing ribs (118), and the reinforcing ribs (118) on the outer circumferences of the two connection blocks (129) are alternately distributed, and the ends of the reinforcing ribs (118) away from the connection block (129) are arranged to be bent outward, and the ends of the reinforcing ribs (118) away from the connection block (129) are arranged inside the tail groove (113), and the tail groove (113) is opened on the side of the middle of the outer circumference of the tail stock (103) away from the anti-pullout seat (102), one end of the limit column (128) is fixedly connected to the middle of the inner side wall of the tail stock (103), and the ends of the ribs (119) away from the ring block (120) are slidably connected to the inside of the guide groove (124),The guide grooves (124) are all arranged inside the wall of one end of the anti-pullout seat (102) away from the connecting section (115); a through hole (114) is arranged on the outer periphery of the middle part of the end of the anti-pullout seat (102) away from the connecting section (115); the through holes (114) are all connected to the guide grooves (124); a guide column (125) is fixedly connected to the middle part of one end of the ring block (120) away from the conical block (121); the end of the guide column (125) away from the ring block (120) penetrates the middle part of one end of the anti-pullout seat (102) away from the connecting section (115); and the guide column (125) is slidably connected to the anti-pullout seat (102).

2. The anchoring structure of a prefabricated anchor rod with strong pull-out resistance according to claim 1, characterized in that: A connecting groove (130) is provided in the middle of one end of the anchor body (101) close to the airbag (117), and a connecting tube (131) is arranged inside the connecting groove (130). The connecting tube (131) is fixedly connected to the middle of one end of the sealing plate (106) close to the anchor body (101), and a protective sleeve (105) is fixedly connected to the outer side of the middle of one end of the sealing plate (106) close to the anchor body (101), and a sealing ring (107) is fixedly connected to the middle of the outer periphery of the protective sleeve (105). The airbag (117) is arranged inside the protective sleeve (105), and the interior of the airbag (117) is connected to the interior of the sealing ring (107).

3. The anchoring structure of a prefabricated anchor rod with strong pull-out resistance according to claim 2, characterized in that: A protective sleeve (132) is fixedly connected to the middle of one end of the sealing plate (106) away from the anchor body (101), and the sealing plate (106) and the protective sleeve (132) are both slidably connected to the anchor rod section (116) and the free section (109).

4. The anchoring structure of a prefabricated anchor rod with strong pull-out resistance according to claim 3 is characterized in that: The protective sleeve (132) is engaged inside the interface (122); the interface (122) is arranged at one end of the sealing sleeve (112) close to the sealing plate (106); and the sealing sleeve (112) is threadedly connected to the free section (109).

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