A reinforcement system with clamping function in mining production

Abstract

The invention discloses a reinforcement system with a clamping function in mining production, comprising: an anchor rod extending from left to right into a borehole of surrounding rock, a telescopic clamping device located in the borehole, arranged horizontally, and sleeved on the outer periphery of the right half of the anchor rod, and used for clamping the telescopic clamping device connected to the anchor rod in the borehole; a grouting sleeve located in the borehole, arranged horizontally, and having a through hole extending from left to right thereon, the through hole being used for the grouting sleeve to be sleeved on the outer periphery of the left half of the anchor rod, a plurality of grouting rings located in the borehole, sleeved on the outer periphery of the grouting sleeve, the axes of which coincide with the axes of the grouting sleeve, and used for sealing the slurry in the borehole to prevent the slurry from escaping out of the borehole due to excessive pressure; the invention uses a grouting stopper for grouting blocking, and a grouting stopper ring is arranged on the outer side to form wings to prevent the grouting stopper from falling off during the grouting blocking process; the invention uses a telescopic clamping device to solve the problem of anchoring system damage caused by anchoring agent bonding failure due to water in the borehole.

Description

Technical Field

[0001] The invention belongs to the technical field of prestressed anchor support, and in particular relates to a reinforcement system with a clamping function in mining production. Background Art

[0002] With the continuous increase in mining depth and the influence of complex geological conditions, the anchor and cable support technology, which is the main support means of coal mine tunnels, can no longer fully guarantee the stability of tunnel surrounding rock. The deep surrounding rock is broken to a large extent and deformed strongly. If anchor and cable support is used alone, the bonding effect between the anchor and the surrounding rock is poor due to the surrounding rock crushing, and the performance of the anchor and cable cannot be fully exerted. Especially for high ground stress, goaf tunnels, repair tunnels, tunnels affected by mining and near geological structural belts, the surrounding rock will have obvious delamination and sliding after tunnel excavation, the original cracks will open, and new cracks will develop. It is difficult to achieve a good support effect by using anchor beam mesh support alone. For this reason, many experts and scholars have developed a series of new anchor rods suitable for different strata. "External anchor and internal injection" is a relatively effective new technology developed in the treatment of soft rock tunnels in recent years. The key technology is the combination of anchor and injection. The anchor rod is used as a grouting pipe to grout the surrounding rock at a certain depth. It not only strengthens the broken rock mass, but also provides a reliable force foundation for the anchor rod. The anchoring effect of the anchor rod on the soft rock can be brought into play, thereby controlling the large deformation of the unstable tunnel.

[0003] There are still many problems in the existing technology research on the construction design of grouting anchor cables in boreholes. Anchor (cable) support is currently a widely used support method. The anchor (cable) forms a common bearing body with the shallow surrounding rock of the borehole through the anchoring agent, and then forms a coupled bearing structure through the shallow surrounding rock and the deep surrounding rock. It, the anchoring agent and the rock mass constitute the surrounding rock anchoring structure. Due to the constraints of the occurrence conditions, the influence of water on the surrounding rock anchoring structure is difficult to avoid during the construction of underground projects. When muddy soft rock meets water, the internal hydrophilic clay minerals will absorb water, soften and swell, which greatly reduces the bearing capacity of the rock mass and causes mud disintegration, which in turn causes the surrounding rock to lose its anchorability, making it impossible for the anchoring agent to effectively bond with the rock, and as the surrounding rock becomes muddy, the friction between the broken rock blocks gradually decreases. In the end, the anchor cannot form a cooperative bearing body with the surrounding rock mass through the anchoring agent, and the surrounding rock loses its self-bearing capacity, and the anchoring structure fails as a whole. The failure of rock-anchor interface adhesion and debonding and the overall disengagement of surrounding rock are common failure forms of anchoring structures in muddy soft rock tunnels. Therefore, the bonding ability of the rock-anchor interface and the strength and structural integrity of the rocks around the interface are crucial to the bearing capacity of the anchoring structure. The surrounding rock support of coal mine tunnels mainly adopts anchor support, and end anchors are the most common. With the increase of mining depth, the probability of coal mine tunnels encountering engineering problems such as soft rock, strong mining, and large deformation increases. Problems such as anchor bolt breakage and anchor debonding have become a problem that needs to be solved urgently for coal mine support safety. In order to reduce the damage after deep well soft rock excavation and control the deformation of surrounding rock in time, strong initial support, rapid resistance increase, and high resistance support technology are required. End anchor support has the problem of insufficient adaptability under such engineering conditions. Summary of the invention

[0004] The purpose of the present invention is to provide a reinforcement system with a clamping function in mining production to solve the problem of irregular drilling caused by poor surrounding rock strength, which in turn leads to poor grouting effect, and at the same time, when there is water in the borehole, the anchor agent bonding fails and causes damage to the anchor system.

[0005] The present invention adopts the following technical solution: a reinforcement system with clamping function in mining production, comprising:

[0006] The anchor rod extends from left to right into the drilled hole in the surrounding rock.

[0007] The telescopic clamping device is located in the drill hole, is horizontally arranged, and is sleeved on the outer periphery of the right half of the anchor rod, and is used to clamp the telescopic clamping device connected to the anchor rod in the drill hole;

[0008] The grout-stopping sleeve is located in the drill hole and is arranged horizontally. A through hole is opened from left to right on the grout-stopping sleeve. The through hole is used for the grout-stopping sleeve to be arranged on the outer periphery of the left half of the anchor rod.

[0009] Multiple slurry stop rings are located in the borehole and are sleeved on the periphery of the slurry stop sleeve. The axis of the slurry stop ring coincides with the axis of the slurry stop sleeve. The slurry stop rings are used to seal the slurry in the borehole to prevent the slurry from escaping out of the borehole due to excessive pressure.

[0010] Among them, multiple slurry stop rings are integrally connected to the slurry stop sleeves and are all made of rubber material. The outer diameters of the multiple slurry stop rings gradually decrease from left to right, that is, from shallow to deep in the borehole, thereby sealing the slurry.

[0011] Furthermore, the telescopic clamping device comprises:

[0012] The left clamp is installed and fixed on the anchor rod.

[0013] The right clamping ring is mounted and fixed on the anchor rod and is located on the right side of the left clamping ring.

[0014] The middle retaining ring is mounted on the anchor rod and is located between the left retaining ring and the right retaining ring.

[0015] The elastic member is sleeved on the anchor rod and is located between the left clamp ring and the middle retaining ring. Its two ends are fixedly connected to the left clamp ring and the middle retaining ring respectively.

[0016] The contraction unit is located between the middle retaining ring and the right clamping ring, and its two ends are movably connected to the middle retaining ring and the right clamping ring respectively. It is used to expand and compress the elastic part after being subjected to longitudinal pressure when entering the drill hole, and is also used to contract under the elastic force of the elastic part when extending into the right end of the drill hole, thereby clamping the telescopic clamping device connected to the anchor rod in the drill hole.

[0017] Further, the shrinking unit comprises:

[0018] The first section of the upper support rod is tilted and located on the upper side of the anchor rod. Its left end is hinged to the upper right half of the middle retaining ring.

[0019] The first lower support rod is tilted and located at the lower side of the anchor rod. Its left end is hinged to the lower right half of the middle retaining ring.

[0020] The upper support rod at the end is tilted and located on the upper side of the anchor rod. Its right end is hinged to the upper left half of the right clamp ring.

[0021] The last lower support rod is tilted and located at the lower side of the anchor rod, and its right end is hinged to the lower left half of the right clamp ring.

[0022] A plurality of intermediate units are located between the first section upper support rod and the last section upper support rod and are sleeved on the anchor rod for being used for being expanded to the left or contracted to the right.

[0023] Furthermore, the plurality of intermediate units are evenly arranged from left to right and are movably connected in sequence, the upper ends of each intermediate unit are movably connected via a first movable mechanism, and the lower ends of each intermediate unit are movably connected via a second movable mechanism;

[0024] Each intermediate unit includes:

[0025] The shrink ring is put on the anchor rod.

[0026] The first upper support rod is inclined and located on the upper side of the anchor rod, and its right end is movably connected to the upper side of the shrink ring through the upper shrink mechanism.

[0027] The first lower support rod is inclined and located at the lower side of the anchor rod, and its right end is movably connected to the lower side of the shrink ring through the lower shrink mechanism.

[0028] The second upper support rod is inclined and located on the upper side of the anchor rod, and its left end is movably connected to the upper side of the shrink ring through the upper shrink mechanism.

[0029] The second lower support rod is inclined and located at the lower side of the anchor rod, and its left end is movably connected to the lower side of the shrink ring through the lower shrink mechanism.

[0030] in,

[0031] The left end of the first upper support rod of the leftmost intermediate unit is movably connected to the right end of the first upper support rod through the third movable mechanism.

[0032] The left end of the first lower support rod of the leftmost intermediate unit is movably connected to the right end of the first lower support rod through the fourth movable mechanism.

[0033] The right end of the second upper support rod of the rightmost middle unit is movably connected to the left end of the upper support rod of the last section through the fifth movable mechanism.

[0034] The right end of the second lower support rod of the rightmost intermediate unit is movably connected to the left end of the lower support rod of the last section through the sixth movable mechanism, thereby cooperating with each other to form a plurality of retractable intermediate units;

[0035] Among them, the first upper support rod, the first lower support rod, the second upper support rod, the second lower support rod, the first upper support rod, the first lower support rod, the last upper support rod, and the last lower support rod are all used to move in the horizontal direction when the elastic part contracts, and move in the vertical direction when the elastic force of the elastic part recovers, thereby completing expansion or contraction.

[0036] Furthermore, the first activity mechanism includes:

[0037] The first connecting rod is arranged in a front-to-back direction, and is sleeved with two first movable rings, which are respectively fixedly connected to the second upper support rod of the left intermediate unit and the first upper support rod of the right intermediate unit, so that the first movable rings can rotate around the axis of the first connecting rod, so that the corresponding second upper support rod and the first upper support rod move horizontally or vertically;

[0038] The second activity organization includes:

[0039] The second connecting rod is arranged in a front-to-back direction, and is sleeved with two second movable rings, which are respectively fixedly connected to the second lower support rod of the left intermediate unit and the first lower support rod of the right intermediate unit, so that the second movable rings can rotate around the axis of the second connecting rod, so that the corresponding second lower support rod and the first lower support rod move horizontally or vertically;

[0040] The third activity agencies include:

[0041] The third connecting rod is arranged in a front-to-back direction, and is sleeved with two third movable rings, which are respectively fixedly connected to the first upper support rod and the first upper support rod of the leftmost intermediate unit, so that the third movable ring can rotate around the axis of the third connecting rod, so that the corresponding first upper support rod and the first upper support rod tend to move horizontally or vertically;

[0042] The fourth activity organization includes:

[0043] The fourth connecting rod is arranged in a front-to-rear direction and is provided with two fourth movable rings. The two fourth movable rings are respectively fixedly connected to the first lower support rod and the first lower support rod of the leftmost intermediate unit, so that the fourth movable ring can rotate around the axis of the fourth connecting rod, so that the corresponding first lower support rod and the first lower support rod can move horizontally or vertically.

[0044] Furthermore, the fifth activity mechanism includes:

[0045] The fifth connecting rod is arranged in a front-to-back direction, and is sleeved with two fifth movable rings, which are respectively fixedly connected to the second upper support rod and the last upper support rod of the rightmost intermediate unit, so that the fifth movable ring can rotate around the axis of the fifth connecting rod, so that the corresponding second upper support rod and the last upper support rod move horizontally or vertically;

[0046] The sixth activity organization includes:

[0047] The sixth connecting rod is arranged in a front-to-rear direction, and two sixth movable rings are mounted on it. The two sixth movable rings are respectively fixedly connected to the second lower support rod and the last lower support rod of the rightmost intermediate unit, so that the sixth movable ring can rotate around the axis of the sixth connecting rod, so that the corresponding second lower support rod and the last lower support rod can move horizontally or vertically.

[0048] Further, the upper retracting mechanism comprises:

[0049] The upper expansion ring is located on the upper side of the shrink ring, and its lower side is fixedly connected to the upper side of the shrink ring. Its axis is perpendicular to the axis of the shrink ring and is arranged along the front-back direction.

[0050] The upper deployment rod is sleeved inside the upper deployment ring along the direction of the upper deployment ring.

[0051] Two upper movable rings are sleeved on the upper deployment rod, and the two upper movable rings are respectively fixedly connected to the first upper support rod and the second upper support rod of the intermediate unit, so that the upper movable rings can rotate around the axis of the upper deployment rod, so that the corresponding first upper support rod and the second upper support rod move horizontally or vertically;

[0052] The lower retraction mechanism includes:

[0053] The lower expansion ring is located at the lower side of the shrink ring, and its upper side is fixedly connected to the lower side of the shrink ring. Its axis is perpendicular to the axis of the shrink ring and is arranged along the front-back direction.

[0054] The lower deployment rod is sleeved inside the lower deployment ring along the direction of the lower deployment ring.

[0055] Two lower movable rings are sleeved under the lower unfolding rod, and the two lower movable rings are fixedly connected to the first lower support rod and the second lower support rod of the intermediate unit respectively, so that the lower movable rings can rotate around the axis of the lower unfolding rod, so that the corresponding first lower support rod and the second lower support rod move horizontally or vertically.

[0056] Furthermore, the anchor rod is a solid anchor rod, the through hole of the grouting sleeve is an eccentric hole, and a slurry hole is also opened on the grouting sleeve from left to right. The slurry hole is arranged parallel to the axis of the through hole. The through hole is used for the solid anchor rod to pass through, and the slurry hole is used to inject grout into the drilled hole through a grouting pipe, thereby forming a solid body to anchor the anchor rod.

[0057] Furthermore, the anchor rod is a grouting anchor rod, and a grouting hole is opened along the inner cavity of the grouting anchor rod, and the grouting hole is used for grouting from the outside to the inside. A plurality of grouting holes are opened around the middle section, and the plurality of grouting holes are used for slurry to enter the drill hole from the inner cavity of the grouting anchor rod through the grouting holes to form a solid body, thereby reinforcing the grouting anchor rod.

[0058] Furthermore, a plurality of protrusions are fixedly connected to the inner wall around the slurry-stopping sleeve, one end of the plurality of protrusions is fixedly connected to the inner wall of the slurry-stopping sleeve, and the other end thereof extends toward the axis of the slurry-stopping sleeve.

[0059] The beneficial effects of the present invention are:

[0060] 1. The present invention uses a slurry stopper to block slurry. A slurry stopper ring is provided on the outside to form a wing. The slurry stopper is made of rubber material, which is soft and elastic to a certain extent, and can prevent the slurry stopper from falling off during the slurry stopping process. The slurry stopper is suitable for all boreholes with different surrounding rock strengths and surrounding rock crushing conditions, and especially solves the problem that the slurry stopper cannot completely block slurry due to the irregularity of the borehole caused by poor surrounding rock strength and surrounding rock crushing bodies;

[0061] 2. The present invention provides multiple rows of protrusions on the inner wall of the grout stopper, which can make the grout stopper tightly connected with the anchor rod and fit closely with the surrounding rock when drilling deep into the hole, thus achieving a better sealing and fixing effect. At the same time, the protrusions can prevent the grout from flowing out of the gap of the anchor rod, thus further achieving a better grout blocking effect. In addition, the grout stopper is suitable for drilling holes of different diameters at the same time, which saves the number of mold processing times, reduces the difficulty of production, and saves costs compared with conventional grout stoppers.

[0062] 3. The present invention clamps the anchor rod in the borehole by arranging a telescopic clamping device, thereby effectively fixing the anchor rod. When the anchor rod is placed in the borehole, the elastic force of the elastic member causes each support rod to move vertically, thereby realizing mechanical reinforcement between the surrounding rock and the anchor body, improving the stability of the surrounding rock, and increasing the friction between the anchor body and the inner wall of the anchor, thereby improving the anchoring strength of the anchor rod;

[0063] 4. The present invention uses a telescopic clamping device for port anchoring. Compared with the traditional anchoring agent, the present invention uses a telescopic clamping device for mechanical reinforcement, which can save a lot of anchoring agent and save solidification time;

[0064] 5. The telescopic clamping device of the present invention is applicable to all boreholes with different surrounding rock strengths, and in particular solves the problem of anchoring agent bonding failure caused by water in the borehole, which leads to damage to the anchoring system; because the telescopic clamping device will not affect the anchoring effect due to water in the borehole and damage the anchoring system. BRIEF DESCRIPTION OF THE DRAWINGS

[0065] Figure 1 This is a schematic diagram of the structure of the anchor rod of the present invention before entering the drill hole;

[0066] Figure 2 This is a schematic diagram of the structure of the anchor rod of the present invention after entering the drill hole;

[0067] Figure 3 This is a schematic diagram of the structure of the anchor rod of the present invention after entering the borehole and grouting;

[0068] Figure 4 It is a structural schematic diagram of the telescopic clamping device of the present invention;

[0069] Figure 5 This is an enlarged view of the details of the telescopic clamping device A of the present invention;

[0070] Figure 6 It is an enlarged view of the details of the telescopic clamping device B of the present invention.

[0071] Among them: 1. telescopic clamping device; 101. left clamping ring; 102. right clamping ring; 103. middle retaining ring; 104. elastic member; 106. first section upper support rod; 107. first section lower support rod; 108. last section upper support rod; 109. last section lower support rod; 111. first upper support rod; 112. first lower support rod; 113. second upper support rod; 114. second lower support rod; 115. first movable mechanism; 116. second movable mechanism; 117. third movable mechanism; 118. fourth movable mechanism; 119. fifth movable mechanism; 120. sixth movable mechanism; 121. upper contraction mechanism; 122. lower contraction mechanism; 123. third connecting rod; 124. third movable ring; 125. lower expansion ring; 126. lower expansion rod; 127. lower movable ring; 128. contraction ring;

[0072] 2. Anchor rod; 3. Grout-stopping sleeve; 4. Grout-stopping ring; 5. Drill hole; 6. Surrounding rock. DETAILED DESCRIPTION

[0073] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0074] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more, and the "direction" in the present invention is based on Figure 1 Description of the trend.

[0075] The present invention discloses a reinforcement system with a clamping function in mining production, such as Figure 1-3 As shown, it includes: an anchor rod 2, a telescopic clamping device 1, a grout-stopping sleeve 3, and a plurality of grout-stopping rings 4.

[0076] The anchor rod 2 extends from left to right into the borehole 5 of the surrounding rock 6, the telescopic clamping device 1 is located in the borehole 5, the telescopic clamping device 1 is horizontally arranged, the telescopic clamping device 1 is sleeved on the outer periphery of the right half of the anchor rod 2, and the telescopic clamping device 1 is used to connect the telescopic clamping device 1 to the anchor rod 2 and clamp it in the borehole 5.

[0077] The grout-stopping sleeve 3 is located in the borehole 5 , and is arranged horizontally. A through hole is provided on the grout-stopping sleeve 3 from left to right, and the through hole is used for the grout-stopping sleeve 3 to be sleeved on the outer periphery of the left half of the anchor rod 2 .

[0078] Multiple slurry stop rings 4 are located in the borehole 5, and multiple slurry stop rings 4 are sleeved on the periphery of the slurry stop sleeve 3. The axes of the multiple slurry stop rings 4 coincide with the axis of the slurry stop sleeve 3. The multiple slurry stop rings 4 are used to seal the slurry in the borehole 5 to prevent the slurry from escaping out of the borehole 5 due to excessive pressure.

[0079] Among them, multiple slurry stopping rings 4 are integrally connected to the slurry stopping sleeves 3 and are all made of rubber material. The outer diameters of the multiple slurry stopping rings 4 gradually decrease from left to right, that is, from shallow to deep in the borehole 5, thereby sealing the slurry.

[0080] like Figure 4-6 As shown, the telescopic clamping device 1 includes: a left clamping ring 101, a right clamping ring 102, an intermediate retaining ring 103, an elastic member 104, and a contraction unit.

[0081] The left snap ring 101 is sleeved and fixed on the anchor rod 2 , the right snap ring 102 is sleeved and fixed on the anchor rod 2 and is located on the right side of the left snap ring 101 , and the middle retaining ring 103 is sleeved on the anchor rod 2 and is located between the left snap ring 101 and the right snap ring 102 .

[0082] The elastic member 104 is sleeved on the anchor rod 2 and is located between the left snap ring 101 and the middle retaining ring 103 . The elastic member 104 is a spring, and two ends of the elastic member 104 are fixedly connected to the left snap ring 101 and the middle retaining ring 103 respectively.

[0083] The contraction unit is located between the middle retaining ring 103 and the right clamping ring 102, and the two ends of the contraction unit are movably connected to the middle retaining ring 103 and the right clamping ring 102 respectively. The contraction unit is used to expand and compress the elastic member 104 after being subjected to the longitudinal pressure of the borehole when entering the borehole 5. The contraction unit is also used to contract under the elastic force of the elastic member 104 when extending into the right end of the borehole 5, thereby clamping the telescopic clamping device 1 connected to the anchor rod 2 in the borehole 5.

[0084] The contraction unit comprises: a first section upper support rod 106, a first section lower support rod 107, a last section upper support rod 108, a last section lower support rod 109, and a plurality of intermediate units.

[0085] The first section upper support rod 106 is tilted and located on the upper side of the anchor rod 2, and the left end of the first section upper support rod 106 is hinged to the upper right half of the intermediate retaining ring 103; the first section lower support rod 107 is tilted and located on the lower side of the anchor rod 2, and the left end of the first section lower support rod 107 is hinged to the lower right half of the intermediate retaining ring 103.

[0086] The upper support rod 108 of the last section is tilted and located on the upper side of the anchor rod 2. The right end of the upper support rod 108 of the last section is hinged to the upper left half of the right clamping ring 102. The lower support rod 109 of the last section is tilted and located on the lower side of the anchor rod 2. The right end of the lower support rod 109 of the last section is hinged to the lower left half of the right clamping ring 102.

[0087] The plurality of intermediate units are located between the first section upper support rod 106 and the last section upper support rod 108 and are sleeved on the anchor rod 2. The plurality of intermediate units are used to expand to the left or contract to the right.

[0088] The plurality of intermediate units are evenly arranged from left to right and are movably connected in sequence. The upper ends of each intermediate unit are movably connected via a first movable mechanism 115 , and the lower ends of each intermediate unit are movably connected via a second movable mechanism 116 .

[0089] Each intermediate unit includes a shrink ring 128 , a first upper support rod 111 , a first lower support rod 112 , a second upper support rod 113 , and a second lower support rod 114 .

[0090] The shrinking ring 128 is sleeved on the anchor rod 2, the first upper support rod 111 is tilted and located on the upper side of the anchor rod 2, and the right end of the first upper support rod 111 is movably connected to the upper side of the shrinking ring 128 through the upper shrinking mechanism 121, and the first lower support rod 112 is tilted and located on the lower side of the anchor rod 2, and the right end of the first lower support rod 112 is movably connected to the lower side of the shrinking ring 128 through the lower shrinking mechanism 122.

[0091] The second upper support rod 113 is tilted and located on the upper side of the anchor rod 2 . The left end of the second upper support rod 113 is movably connected to the upper side of the shrink ring 128 through the upper shrink mechanism 121 .

[0092] The second lower support rod 114 is tilted and located at the lower side of the anchor rod 2 . The left end of the second lower support rod 114 is movably connected to the lower side of the shrink ring 128 through the lower shrink mechanism 122 .

[0093] Among them, the left end of the first upper support rod 111 of the leftmost intermediate unit is movably connected to the right end of the first upper support rod 106 through the third movable mechanism 117, the left end of the first lower support rod 112 of the leftmost intermediate unit is movably connected to the right end of the first lower support rod 107 through the fourth movable mechanism 118, the right end of the second upper support rod 113 of the rightmost intermediate unit is movably connected to the left end of the last upper support rod 108 through the fifth movable mechanism 119, and the right end of the second lower support rod 114 of the rightmost intermediate unit is movably connected to the left end of the last lower support rod 109 through the sixth movable mechanism 120, thereby cooperating with each other to form multiple retractable intermediate units.

[0094] Among them, the first upper support rod 111, the first lower support rod 112, the second upper support rod 113, the second lower support rod 114, the first upper support rod 106, the first lower support rod 107, the last upper support rod 108, and the last lower support rod 109 are all used to move in the horizontal direction when the elastic member 104 contracts, and move in the vertical direction when the elastic force of the elastic member 104 recovers, thereby completing the expansion or contraction.

[0095] The first movable mechanism 115 includes: a first connecting rod, the first connecting rod is arranged to run forward and backward, and two first movable rings are sleeved on the first connecting rod. The two first movable rings are respectively fixedly connected to the second upper support rod 113 of the left middle unit and the first upper support rod 111 of the right middle unit, so that the first movable ring can rotate around the axis of the first connecting rod, so that the corresponding second upper support rod 113 and first upper support rod 111 move horizontally or vertically.

[0096] The second movable mechanism 116 includes: a second connecting rod, the second connecting rod is arranged to run forward and backward, and two second movable rings are sleeved on the second connecting rod. The two second movable rings are respectively fixedly connected to the second lower support rod 114 of the left middle unit and the first lower support rod 112 of the right middle unit, so that the second movable ring can rotate around the axis of the second connecting rod, so that the corresponding second lower support rod 114 and first lower support rod 112 move horizontally or vertically.

[0097] The third movable mechanism 117 includes: a third connecting rod 123, the third connecting rod 123 is arranged to run forward and backward, and two third movable rings 124 are sleeved on the third connecting rod 123. The two third movable rings 124 are respectively fixedly connected to the first upper support rod 111 and the first upper support rod 106 of the leftmost intermediate unit, so that the third movable ring 124 can rotate around the axis of the third connecting rod 123, so that the corresponding first upper support rod 111 and the first upper support rod 106 move horizontally or vertically.

[0098] The fourth movable mechanism 118 includes: a fourth connecting rod, the fourth connecting rod is arranged in a front-to-rear direction, and two fourth movable rings are sleeved on the fourth connecting rod. The two fourth movable rings are respectively fixedly connected to the first lower support rod 112 and the first lower support rod 107 of the leftmost intermediate unit, so that the fourth movable ring can rotate around the axis of the fourth connecting rod, so that the corresponding first lower support rod 112 and the first lower support rod 107 tend to move horizontally or vertically.

[0099] The fifth movable mechanism 119 includes: a fifth connecting rod, the fifth connecting rod is arranged in a front-to-rear direction, and two fifth movable rings are sleeved on the fifth connecting rod. The two fifth movable rings are respectively fixedly connected to the second upper support rod 113 and the last upper support rod 108 of the rightmost middle unit, so that the fifth movable ring can rotate around the axis of the fifth connecting rod, so that the corresponding second upper support rod 113 and the last upper support rod 108 move toward horizontal or vertical direction.

[0100] The sixth movable mechanism 120 includes: a sixth connecting rod, the sixth connecting rod is arranged in a front-to-rear direction, and two sixth movable rings are sleeved on the sixth connecting rod. The two sixth movable rings are respectively fixedly connected to the second lower support rod 114 and the last lower support rod 109 of the rightmost intermediate unit, so that the sixth movable ring can rotate around the axis of the sixth connecting rod, so that the corresponding second lower support rod 114 and the last lower support rod 109 tend to move horizontally or vertically.

[0101] The upper retracting mechanism 121 includes an upper deployment ring, an upper deployment rod, and two upper movable rings.

[0102] The upper deployment ring is located on the upper side of the shrink ring 128, and the lower side of the upper deployment ring is fixedly connected to the upper side of the shrink ring 128. The axis of the upper deployment ring is perpendicular to the axis of the shrink ring 128 and is arranged along the front-to-back direction. The upper deployment rod is sleeved in the upper deployment ring along the direction of the upper deployment ring, and the two upper movable rings are sleeved on the upper deployment rod. The two upper movable rings are respectively fixedly connected to the first upper support rod 111 and the second upper support rod 113 of the intermediate unit, so that the upper movable ring can rotate around the axis of the upper deployment rod, so that the corresponding first upper support rod 111 and the second upper support rod 113 move toward the horizontal or vertical direction.

[0103] The lower retracting mechanism 122 includes a lower deployment ring 125 , a lower deployment rod 126 , and two lower movable rings 127 .

[0104] The lower deployment ring 125 is located at the lower side of the shrink ring 128, and the upper side of the lower deployment ring 125 is fixedly connected to the lower side of the shrink ring 128. The axis of the lower deployment ring 125 is perpendicular to the axis of the shrink ring 128 and is arranged along the front-to-back direction. The lower deployment rod 126 is sleeved in the lower deployment ring 125 along the direction of the lower deployment ring 125, and two lower movable rings 127 are sleeved under the lower deployment rod 126. The two lower movable rings 127 are respectively fixedly connected to the first lower support rod 112 and the second lower support rod 114 of the intermediate unit, so that the lower movable ring 127 can rotate around the axis of the lower deployment rod 126, so that the corresponding first lower support rod 112 and the second lower support rod 114 move toward the horizontal or vertical direction.

[0105] The anchor rod 2 is a solid anchor rod, and the through hole of the grouting sleeve 3 is an eccentric hole. A slurry hole is also opened on the grouting sleeve 3 from left to right. The slurry hole is arranged parallel to the axis of the through hole. The through hole is used for the solid anchor rod 2 to pass through. The slurry hole is used to inject grout into the borehole 5 through a grouting pipe, and then form a solid body to anchor the anchor rod 2.

[0106] The anchor rod 2 is a grouting anchor rod. A grouting hole is opened along the inner cavity of the grouting anchor rod 2. The grouting hole is used for grouting from the outside to the inside. A plurality of grouting holes are opened around the middle section of the anchor rod 2. The plurality of grouting holes are used for slurry to pass through the inner cavity of the grouting anchor rod 2 into the borehole 5 to form a solid body, thereby reinforcing the grouting anchor rod 2.

[0107] A plurality of protrusions are fixedly connected to the inner wall around the slurry-stopping sleeve 3 , one end of the plurality of protrusions is fixedly connected to the inner wall of the slurry-stopping sleeve 3 , and the other end thereof extends toward the axis of the slurry-stopping sleeve 3 .

[0108] When the anchor rod 2 is a grouting anchor rod, the construction method of the present invention is:

[0109] The grouting sleeve 3 is inserted into the left half of the grouting anchor rod 2, and the telescopic clamping device 1 is fixed to the right half of the grouting anchor rod 2. Then, the grouting anchor rod 2 carrying the grouting sleeve 3 and the telescopic clamping device 1 is inserted into the borehole 5. During the insertion into the borehole 5, due to the resistance of the borehole 5 to the left, the elastic member 104 is in a compressed state, thereby driving the middle retaining ring 103 to move to the left, and the first section upper support rod 106, the first section lower support rod 107, the last section upper support rod 108, the last section lower support rod 109, the first upper support rod 111, the first lower support rod 112, the second upper support rod 113, and the second lower support rod 114 move toward the horizontal state, thereby making the grouting anchor rod 2 The grouting anchor rod 2 can enter the borehole 5. When the right end of the grouting anchor rod 2 reaches the right end of the borehole 5, the anchor rod 2 is pulled to the left, so that the first section upper support rod 106, the first section lower support rod 107, the last section upper support rod 108, the last section lower support rod 109, the first upper support rod 111, the first lower support rod 112, the second upper support rod 113, and the second lower support rod 114 move toward the vertical state under the push of the elastic member 104 to the right, and then get stuck in the borehole 5; grouting is performed through the grouting hole of the grouting anchor rod 2, so that the slurry flows from the grouting hole into the borehole 5 to form a solid body, and then a tray is installed at the left end of the grouting anchor rod 2 and fixed with a nut.

[0110] When the anchor rod 2 is a solid anchor rod, the construction method of the present invention is:

[0111] The grout-stopping sleeve 3 is inserted into the left half of the solid anchor rod 2, and the telescopic clamping device 1 is fixed to the right half of the solid anchor rod 2. Then, the solid anchor rod 2 carrying the grout-stopping sleeve 3 and the telescopic clamping device 1 is inserted into the borehole 5. During the insertion into the borehole 5, due to the resistance of the borehole 5 to the left, the elastic member 104 is in a compressed state, thereby driving the middle retaining ring 103 to move to the left, and the first section upper support rod 106, the first section lower support rod 107, the last section upper support rod 108, the last section lower support rod 109, the first upper support rod 111, the first lower support rod 112, the second upper support rod 113, and the second lower support rod 114 move toward a horizontal state, thereby The solid anchor rod 2 can enter the borehole 5. When the right end of the solid anchor rod 2 reaches the right end of the borehole 5, the anchor rod 2 is pulled to the left, so that the first upper support rod 106, the first lower support rod 107, the last upper support rod 108, the last lower support rod 109, the first upper support rod 111, the first lower support rod 112, the second upper support rod 113, and the second lower support rod 114 move toward the vertical state under the push of the elastic member 104 to the right, and then get stuck in the borehole 5; the slurry hole of the grouting sleeve 3 is passed into the borehole 5, so that the slurry flows into the borehole 5 to form a solid body, and then a tray is installed at the left end of the anchor rod 2 and fixed with a nut.

[0112] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A reinforcement system with clamping function in mining production, characterized in that: include: The anchor rod (2) extends from left to right into the borehole (5) of the surrounding rock (6). A telescopic clamping device (1) is located in the borehole (5), is arranged horizontally, and is sleeved on the outer periphery of the right half of the anchor rod (2), and is used to connect the telescopic clamping device (1) to the anchor rod (2) and clamp it in the borehole (5); The grout-stopping sleeve (3) is located in the borehole (5), is arranged horizontally, and has a through hole extending from left to right. The through hole is used for the grout-stopping sleeve (3) to be sleeved on the outer periphery of the left half of the anchor rod (2). A plurality of slurry-stopping rings (4) are located in the borehole (5) and are sleeved on the periphery of the slurry-stopping sleeve (3). The axes of the slurry-stopping rings (4) coincide with the axes of the slurry-stopping sleeve (3) and are used to seal the slurry in the borehole (5) to prevent the slurry from escaping from the borehole (5) due to excessive pressure. The plurality of slurry-stopping rings (4) are integrally connected to the slurry-stopping sleeves (3) and are all made of rubber. The outer diameters of the plurality of slurry-stopping rings (4) gradually decrease from left to right, that is, from shallow to deep in the borehole (5), thereby sealing the slurry. The telescopic clamping device (1) comprises: The left clamping ring (101) is sleeved and fixed on the anchor rod (2). The right clamping ring (102) is sleeved and fixed on the anchor rod (2) and is located on the right side of the left clamping ring (101). The middle retaining ring (103) is sleeved on the anchor rod (2) and is located between the left retaining ring (101) and the right retaining ring (102). The elastic member (104) is sleeved on the anchor rod (2) and is located between the left clamping ring (101) and the middle retaining ring (103), and its two ends are respectively fixedly connected to the left clamping ring (101) and the middle retaining ring (103). a retracting unit, located between the middle retaining ring (103) and the right clamping ring (102), with its two ends movably connected to the middle retaining ring (103) and the right clamping ring (102) respectively, for expanding and compressing the elastic member (104) after receiving longitudinal pressure when entering the borehole (5), and for retracting under the elastic force of the elastic member (104) when extending into the right end of the borehole (5), thereby clamping the telescopic clamping device (1) in connection with the anchor rod (2) in the borehole (5); The shrinking unit comprises: The first upper support rod (106) is arranged obliquely and is located on the upper side of the anchor rod (2). The left end of the first upper support rod (106) is hinged to the upper right half of the middle retaining ring (103). The first lower support rod (107) is arranged obliquely and is located at the lower side of the anchor rod (2). The left end of the first lower support rod (107) is hinged to the lower right half of the middle retaining ring (103). The last upper support rod (108) is arranged obliquely and is located on the upper side of the anchor rod (2). Its right end is hinged to the upper left half of the right clamping ring (102). The last lower support rod (109) is arranged obliquely and is located at the lower side of the anchor rod (2). Its right end is hinged to the lower left half of the right clamping ring (102). A plurality of intermediate units are located between the first section upper support rod (106) and the last section upper support rod (108), and are sleeved on the anchor rod (2) for being expanded to the left or contracted to the right.

2. A reinforcement system with clamping function in mining production according to claim 1, characterized in that: The plurality of intermediate units are evenly arranged from left to right and are movably connected in sequence, the upper ends of each intermediate unit are movably connected via a first movable mechanism (115), and the lower ends of each intermediate unit are movably connected via a second movable mechanism (116); Each of the intermediate units comprises: A shrink ring (128) is sleeved on the anchor rod (2). The first upper support rod (111) is arranged obliquely and is located on the upper side of the anchor rod (2). The right end of the first upper support rod (111) is movably connected to the upper side of the shrink ring (128) via an upper shrink mechanism (121). The first lower support rod (112) is arranged obliquely and is located at the lower side of the anchor rod (2). The right end of the first lower support rod (112) is movably connected to the lower side of the shrink ring (128) via a lower shrink mechanism (122). The second upper support rod (113) is arranged obliquely and is located on the upper side of the anchor rod (2). The left end of the second upper support rod (113) is movably connected to the upper side of the shrink ring (128) through the upper shrink mechanism (121). The second lower support rod (114) is arranged obliquely and is located at the lower side of the anchor rod (2). The left end of the second lower support rod (114) is movably connected to the lower side of the shrink ring (128) through the lower shrink mechanism (122). in, The left end of the first upper support rod (111) of the leftmost intermediate unit is movably connected to the right end of the first upper support rod (106) via a third movable mechanism (117). The left end of the first lower support rod (112) of the leftmost intermediate unit is movably connected to the right end of the first lower support rod (107) via a fourth movable mechanism (118). The right end of the second upper support rod (113) of the rightmost intermediate unit is movably connected to the left end of the last upper support rod (108) via a fifth movable mechanism (119). The right end of the second lower support rod (114) of the rightmost intermediate unit is movably connected to the left end of the last lower support rod (109) via a sixth movable mechanism (120), thereby cooperating with each other to form a plurality of retractable intermediate units; Wherein, the first upper support rod (111), the first lower support rod (112), the second upper support rod (113), the second lower support rod (114), the first upper support rod (106), the first lower support rod (107), the last upper support rod (108), and the last lower support rod (109) are all used to move in a horizontal direction when the elastic member (104) contracts, and to move in a vertical direction when the elastic force of the elastic member (104) is restored, thereby completing expansion or contraction.

3. A reinforcement system with clamping function in mining production according to claim 2, characterized in that: The first movable mechanism (115) comprises: A first connecting rod is arranged to extend forward and backward, and is sleeved with two first movable rings, the two first movable rings being respectively fixedly connected to the second upper support rod (113) of the middle unit on the left and the first upper support rod (111) of the middle unit on the right, so that the first movable rings can rotate around the axis of the first connecting rod, so that the corresponding second upper support rod (113) and the first upper support rod (111) move horizontally or vertically; The second movable mechanism (116) comprises: A second connecting rod is arranged to run forward and backward, and is sleeved with two second movable rings, which are respectively fixedly connected to the second lower support rod (114) of the middle unit on the left and the first lower support rod (112) of the middle unit on the right, so that the second movable rings can rotate around the axis of the second connecting rod, so that the corresponding second lower support rod (114) and the first lower support rod (112) move horizontally or vertically; The third movable mechanism (117) comprises: The third connecting rod (123) is arranged to run forward and backward, and is sleeved with two third movable rings (124). The two third movable rings (124) are respectively fixedly connected to the first upper support rod (111) and the first upper support rod (106) of the leftmost intermediate unit, so that the third movable ring (124) can rotate around the axis of the third connecting rod (123), thereby causing the corresponding first upper support rod (111) and the first upper support rod (106) to move horizontally or vertically; The fourth movable mechanism (118) comprises: The fourth connecting rod is arranged in a front-to-rear direction and is sleeved with two fourth movable rings. The two fourth movable rings are respectively fixedly connected to the first lower support rod (112) and the first lower support rod (107) of the leftmost intermediate unit, so that the fourth movable ring can rotate around the axis of the fourth connecting rod, thereby causing the corresponding first lower support rod (112) and the first lower support rod (107) to move horizontally or vertically.

4. A reinforcement system with clamping function in mining production according to claim 3, characterized in that: The fifth movable mechanism (119) comprises: A fifth connecting rod is arranged to run forward and backward, and is sleeved with two fifth movable rings, which are respectively fixedly connected to the second upper support rod (113) and the last upper support rod (108) of the rightmost intermediate unit, so that the fifth movable ring can rotate around the axis of the fifth connecting rod, thereby causing the corresponding second upper support rod (113) and the last upper support rod (108) to move horizontally or vertically; The sixth movable mechanism (120) comprises: The sixth connecting rod is arranged in a front-to-rear direction and is sleeved with two sixth movable rings. The two sixth movable rings are respectively fixedly connected to the second lower support rod (114) and the last lower support rod (109) of the rightmost intermediate unit, so that the sixth movable ring can rotate around the axis of the sixth connecting rod, thereby causing the corresponding second lower support rod (114) and the last lower support rod (109) to move horizontally or vertically.

5. A reinforcement system with clamping function in mining production according to claim 2, characterized in that: The upper retracting mechanism (121) comprises: The upper expansion ring is located on the upper side of the shrink ring (128), the lower side of which is fixedly connected to the upper side of the shrink ring (128), the axis of which is perpendicular to the axis of the shrink ring (128) and is arranged along the front-rear direction. The upper deployment rod is sleeved inside the upper deployment ring along the direction of the upper deployment ring. Two upper movable rings are sleeved on the upper deployment rod, and the two upper movable rings are respectively fixedly connected to the first upper support rod (111) and the second upper support rod (113) of the intermediate unit, so that the upper movable rings can rotate around the axis of the upper deployment rod, thereby causing the corresponding first upper support rod (111) and the second upper support rod (113) to move horizontally or vertically; The lower retracting mechanism (122) comprises: The lower expansion ring (125) is located at the lower side of the shrink ring (128), the upper side of which is fixedly connected to the lower side of the shrink ring (128), the axis of which is perpendicular to the axis of the shrink ring (128) and is arranged along the front-rear direction. The lower deployment rod (126) is sleeved inside the lower deployment ring (125) along the direction of the lower deployment ring (125). Two lower movable rings (127) are sleeved under the lower deployment rod (126), and the two lower movable rings (127) are respectively fixedly connected to the first lower support rod (112) and the second lower support rod (114) of the intermediate unit, so that the lower movable rings (127) can rotate around the axis of the lower deployment rod (126), thereby causing the corresponding first lower support rod (112) and the second lower support rod (114) to move horizontally or vertically.

6. A reinforcement system with clamping function in mining production according to any one of claims 3 to 5, characterized in that: The anchor rod (2) is a solid anchor rod (2), the through hole of the grout-stopping sleeve (3) is an eccentric hole, and a grout hole is also provided on the grout-stopping sleeve (3) from left to right, the grout hole is arranged parallel to the axis of the through hole, the through hole is used for the solid anchor rod (2) to pass through, and the grout hole is used for grouting into the borehole (5) through a grouting pipe, thereby forming a solid body to anchor the anchor rod (2).

7. A reinforcement system with clamping function in mining production according to any one of claims 3 to 5, characterized in that: The anchor rod (2) is a grouting anchor rod (2), and a grouting hole is provided along the inner cavity of the grouting anchor rod (2), and the grouting hole is used for grouting from the outside to the inside. A plurality of grouting holes are provided around the middle section, and the plurality of grouting holes are used for grouting to enter the borehole (5) from the inner cavity of the grouting anchor rod (2) through the grouting holes to form a solid body, thereby reinforcing the grouting anchor rod (2).

8. A reinforcement system with clamping function in mining production according to any one of claims 3 to 5, characterized in that: A plurality of protrusions are fixedly connected to the inner wall around the slurry stopping sleeve (3), one end of the plurality of protrusions is fixedly connected to the inner wall of the slurry stopping sleeve (3), and the other end thereof extends towards the axis of the slurry stopping sleeve (3).

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