Expansion type anchor disc

Abstract

The utility model discloses an expansion type anchor disc, which belongs to the technical field of anchoring devices and comprises an anchor rod, a sliding cylinder is sleeved on the anchor rod, and a handle is rotatably arranged at the top end of the anchor rod. According to the unfolding type anchor disc, the limiting piece is driven to rotate integrally by screwing the handle, so that the limiting piece is aligned with the sliding groove formed in the groove in the limiting ring, the limiting ring is separated from the limiting piece in an abutting and limiting mode, and therefore the first supporting rod and the second supporting rod parallel to the first supporting rod can be driven to rotate and unfold along with the first supporting rod; the supporting column rotationally connected with the end part of the second supporting rod and the anchor disc blade are unfolded, so that the subsequent anchoring and locking operation is convenient to carry out; as the overall expansion of the anchor plate blade is completely driven by the elasticity of the spring instead of depending on the gravity of the anchor plate blade, the anchor plate blade can be completely expanded without being influenced when the anchor plate blade is used in a non-vertical state, so that the supporting effect and the stability in the anchoring process are kept, the smoothness of the construction process is kept, the construction efficiency is improved, and the construction cost is reduced. And the construction cost and time are reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of anchoring device, concretely relates to a spread type anchor disc. BACKGROUND

[0002] The anchor disc is an important component in the anchor rod supporting system, provides supporting force by cooperating with the anchor rod, prevents the movement of the loose surrounding rock or the loose surrounding rock, the anchor rod end can be pulled tight through the anchor disc between the anchoring force and the surrounding rock surface, thereby generating pre-expansion or pre-stress for anchoring, and is widely applied to house building, rail transit, port wharf, bridge tunnel, mine construction and other engineering construction, can ensure the stability and safety of the supporting system, and provides strong guarantee for the smooth engineering construction.

[0003] The spread type anchor disc is a special type of anchor disc, which is designed to be spread when needed to provide larger supporting area and stronger supporting force, and is usually composed of a base and multiple blades, the blades can be spread or folded relative to the base, and is particularly suitable for occasions requiring larger supporting area and stronger supporting force, such as soft surrounding rock, fault fracture zone and other complex geological conditions, so as to tightly resist the surrounding rock through the spread blades, and enhance the anchoring effect, the blades of the existing spread type anchor disc are mainly arranged around the base and are spread in petal shape when inserted into the rock layer after the anchor rod is expanded, but the spread of the blades mainly depends on the gravity, once the anchor rod and the anchor disc are used in a non-vertical state, part of the blades will not be fully spread, thereby weakening the supporting effect of the spread type anchor disc, reducing the stability of anchoring, and also negatively affecting the subsequent construction efficiency, the construction personnel need to spend more time and effort to deal with the problem that the anchor disc cannot be spread, thereby causing the construction progress to be delayed, increasing the construction cost and time. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a spread type anchor disc, and aims at solving the above problems in the prior art.

[0005] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A spread type anchor disc, comprising an anchor rod, a sliding cylinder is sleeved on the anchor rod, a handle is rotationally arranged at the top end of the anchor rod, a support is fixedly installed at the bottom end of the anchor rod, a base is integrally arranged at the lower section of the support, an anchor head is integrally arranged at the bottom of the base, a first supporting rod is rotationally connected to the outer circumferential wall of the support, and a second supporting rod is rotationally connected to the outer circumferential wall of the base;

[0007] The first supporting rod is rotationally connected with a sleeve at one end away from the base, the second supporting rod is rotationally connected with a supporting column at one end away from the base, the supporting column is further fixedly installed with anchor disc blades, a spring is assembled between the sliding cylinder and the base, and the sliding cylinder is further rotationally connected with a connecting rod at the bottom end.

[0008] The handle is integrally provided with a limiting piece at the top end, and the sliding cylinder is integrally provided with a limiting ring at the top end.

[0009] In a preferred embodiment of the utility model, one end of the connecting rod away from the sliding cylinder and the middle part of the first supporting rod are rotationally connected.

[0010] In a preferred embodiment of the utility model, the sleeve is matched with the supporting column and is sleeved.

[0011] In a preferred embodiment of the utility model, the limiting piece and the limiting ring are matched and abutted and limited, and the limiting ring is further provided with a sliding groove for the limiting piece to slide.

[0012] In a preferred embodiment of the utility model, the first supporting rod and the second supporting rod are arranged in parallel.

[0013] In a preferred embodiment of the utility model, the anchor disc blades are arranged in a fan shape and the radius of expansion is greater than the radius of the anchor head.

[0014] In a preferred embodiment of the utility model, the bottom of the anchor head is arranged in a sharp shape and is provided with a wedge-shaped groove.

[0015] In a preferred embodiment of the utility model, the spring pulls the bottom of the sliding cylinder through elastic contraction.

[0016] Overall, compared with the prior art, the above technical scheme conceived by the utility model has the beneficial effects including:

[0017] The utility model discloses an unfolding anchor disc, through the screw handle drive stop piece whole rotation, make stop piece and the groove of the slot setting of limit ring alignment, further make limit ring from the resistance limit of stop piece separate, thereby make the spring of slide cylinder bottom assembly release the force storage and contract, drive slide cylinder whole slide down along the anchor rod body, make the connecting rod of slide cylinder bottom swing connection follow rotation and spread, and the other end of connecting rod is also with the middle part of first support rod swing connection, therefore will drive first support rod and parallel second support rod follow rotation and spread, make the support post of second support rod end swing connection and anchor disc blade follow spread, further drive anchor disc blade complete spread and the rock layer of waiting anchor solid close resistance, thereby convenient for subsequent anchoring locking operation, because the elastic drive of spring of anchor disc blade whole spread, not only rely on its own gravity, under the non -vertical state use, anchor disc blade can also not be affected complete spread, thereby keep its support effect and the stability in the anchoring process, thereby keep the smooth of construction process, promote construction efficiency, reduce construction cost and time. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is existing unfolding anchor disc structure schematic diagram;

[0019] Figure 2 It is the utility model three-dimensional structure schematic diagram;

[0020] Figure 3 It is the utility model main view structure schematic diagram;

[0021] Figure 4 It is the utility model local enlarged structure schematic diagram.

[0022] In all drawings, same reference signs represent same technical features, specifically: 1, anchor rod;2, handle;3, support;4, base;5, anchor head;6, first support rod;7, second support rod;8, sleeve;9, support post;10, anchor disc blade;11, slide cylinder;12, connecting rod;13, spring;14, stop piece;15, limit ring;16, sliding groove. DETAILED DESCRIPTION

[0023] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the utility model will be briefly introduced with the description of embodiment or prior art and drawings, and obviously, the following description of drawing structure is only some embodiments of the utility model, and for ordinary skilled person in the art, other drawings can be obtained according to these drawings without creating creative labor.It needs to be explained here that the description of these embodiment modes is used to help understanding the utility model, but does not constitute the limitation of the utility model.

[0024] Embodiment:

[0025] As Figures 1-4 shown, the embodiment provides a spread anchor plate, which comprises an anchor rod 1, a sliding cylinder 11 sleeved on the anchor rod 1, a handle 2 rotatably arranged at the top end of the anchor rod 1, a support 3 fixedly arranged at the bottom end of the anchor rod 1, a base 4 integrally arranged at the lower section of the support 3, an anchor head 5 integrally arranged at the bottom of the base 4, a first supporting rod 6 rotatably connected to the outer circumferential wall of the support 3, and a second supporting rod 7 rotatably connected to the outer circumferential wall of the base 4.

[0026] An end of the first supporting rod 6 away from the support 3 is rotatably connected to a sleeve 8, an end of the second supporting rod 7 away from the base 4 is rotatably connected to a support column 9, and an anchor plate blade 10 is fixedly arranged on the support column 9; a spring 13 is arranged between the sliding cylinder 11 and the support 3, and a connecting rod 12 is rotatably arranged at the bottom end of the sliding cylinder 11.

[0027] The handle 2 is integrally provided with a limiting piece 14, and the top end of the sliding cylinder 11 is integrally provided with a limiting ring 15.

[0028] In a specific application scenario, the limiting piece 14 is rotated as a whole by rotating the handle 2, so that the limiting piece 14 is aligned with a sliding groove 16 provided with a slot on the limiting ring 15, and then the limiting ring 15 is separated from the limiting piece 14, so that the sliding cylinder 11 can slide freely on the anchor rod 1; at this time, the spring 13 arranged at the bottom of the sliding cylinder 11 releases the accumulated force by elastic deformation and shrinks, drives the sliding cylinder 11 to slide downward along the rod body of the anchor rod 1, and drives the connecting rod 12 rotatably arranged at the bottom of the sliding cylinder 11 to rotate and expand; the other end of the connecting rod 12 is rotatably connected to the middle part of the first supporting rod 6, so that the first supporting rod 6 and the parallel second supporting rod 7 are driven to rotate and expand, the support column 9 and the anchor plate blade 10 rotatably arranged at the end of the second supporting rod 7 are driven to expand, and then the anchor plate blade 10 is driven to completely expand and tightly abut against the rock layer to be anchored, so that subsequent anchoring and locking operations are facilitated. The spread anchor plate will be further described below in combination with the application scenario.

[0029] Further, referring to Figures 1-4 , one end of the connecting rod 12 away from the sliding cylinder 11 is rotatably connected to the middle part of the first supporting rod 6.

[0030] In the embodiment, in the process of anchoring operation of the spread anchor plate, in order to drive the rotation and expansion of the first supporting rod 6, one end of the connecting rod 12 away from the sliding cylinder 11 is rotatably connected to the middle part of the first supporting rod 6, so that the first supporting rod 6 is synchronously rotated and expanded or contracted during the rotation of the connecting rod 12 with the lifting of the sliding cylinder 11, and the stable driving of the first supporting rod 6 is maintained.

[0031] More specifically, referring to Figures 1-4The sleeve 8 is adapted to the strut 9 and is sleeved.

[0032] In the embodiment, during the anchoring operation of the expandable anchor plate, in order to keep the expansion and contraction of the strut 9 and the anchor plate blade 10 in linkage with the rotation of the first and second struts 6 and 7, the sleeve 8 is adapted to the strut 9 and is sleeved, so that the sleeve 8 and the strut 9 are kept sleeved and expand and contract synchronously with the first and second struts 6 and 7.

[0033] More preferably, referring to Figures 1-4 The limiting member 14 and the limiting ring 15 are adapted to each other and are in abutting limiting, and the limiting ring 15 is further provided with a sliding groove 16 for sliding of the limiting member 14.

[0034] In the embodiment, during the anchoring operation of the expandable anchor plate, since the sliding cylinder 11 is sleeved on the anchor rod 1 and is kept in sliding connection, in order to limit the height of the sliding cylinder 11 on the anchor rod 1, prevent the sliding cylinder 11 from being pulled by the spring 13 and always approaching the bottom of the anchor rod 1, and cause the anchor plate blade 10 to always be in an expanded state and unable to be smoothly inserted into the rock layer to be anchored, the limiting member 14 and the limiting ring 15 are adapted to each other and are in abutting limiting, the height of the sliding cylinder 11 is kept stable, and the sliding groove 16 is further provided for sliding of the limiting member 14, so that the abutting limiting between the limiting member 14 and the limiting ring 15 is contacted by the screw handle 2, and then the sliding cylinder 11 is released for height adjustment, thereby improving the applicability and convenience of the expandable anchor plate.

[0035] Further preferably, referring to Figures 1-4 The first and second struts 6 and 7 are parallelly arranged.

[0036] In the embodiment, during the anchoring operation of the expandable anchor plate, in order to keep the expansion and contraction of the anchor plate blade 10 stable, the first and second struts 6 and 7 are parallelly arranged, so that the first and second struts 6 and 7 are driven to move in a parallelogram trajectory under the driving of the connecting rod 12, and the strut 9 and the anchor plate blade 10 are driven to stably expand.

[0037] More preferably, referring to Figures 1-4 The anchor plate blade 10 is arranged in a fan shape and has an expansion radius greater than that of the anchor head 5.

[0038] In the embodiment, during the anchoring operation of the expandable anchor plate, in order to maximize the expansion area of the anchor plate blade 10, the anchor plate blade 10 is arranged in a fan shape and has an expansion radius greater than that of the anchor head 5, so that the anchor plate blade 10 can abut against the rod body of the anchor rod 1 when being contracted, the diameter is reduced to facilitate insertion of the expandable anchor plate into the rock layer to be anchored, and after the anchor plate blade 10 is expanded, the anchor plate blade 10 can fully abut against the inner wall of the rock layer to be anchored, thereby improving the anchoring effect.

[0039] Further, referring to Figures 1-4 The bottom of the anchor head 5 is pointed and provided with a wedge-shaped groove.

[0040] In the embodiment, during the anchoring operation of the unfolding anchor plate, the bottom of the anchor head 5 is pointed and provided with a wedge-shaped groove, so as to reduce the resistance, improve the penetration, and facilitate the insertion of the anchor head 5 into the bottom of the rock layer to be anchored.

[0041] More specifically, referring to Figures 1-4 The spring 13 pulls the bottom of the sliding cylinder 11 through elastic contraction.

[0042] In the embodiment, during the anchoring operation of the unfolding anchor plate, the spring 13 pulls the bottom of the sliding cylinder 11, so as to drive the unfolding of the anchor plate blade 10 through the elasticity of the spring 13, and when the spring 13 releases the accumulated force through elastic deformation and contraction, the sliding cylinder 11 drives the strut 9 and the anchor plate blade 10 to unfold, thereby keeping the unfolding of the anchor plate blade 10 smooth.

[0043] Working principle:

[0044] The unfolding anchor plate of the utility model, when anchoring is needed during construction, first forms the limiting of the sliding cylinder 11 through the abutment of the limiting part 14 and the limiting ring 15, makes the sliding cylinder 11 be located at the top end of the anchor rod 1 and forces the spring 13 assembled at the bottom of the sliding cylinder 11 to be in the state of stretching and accumulating force, at this time, the sliding cylinder 11 also drives the first supporting rod 6 to incline and close to the rod body of the anchor rod 1 through the connecting rod 12 rotationally connected at the bottom of the sliding cylinder 11, drives the strut 9 and the anchor plate blade 10 to close to the rod body of the anchor rod 1, and makes the anchor plate blade 10 be in the state of contraction.

[0045] Then the anchor rod 1 and the anchor disc blade 10 in the contracted state are inserted into the reamed rock stratum to be anchored, and the handle 2 is rotated to drive the limiting piece 14 to rotate as a whole, so that the limiting piece 14 is aligned with the sliding groove 16 provided on the limiting ring 15, and then the limiting ring 15 is separated from the limiting piece 14, so that the sliding cylinder 11 can slide freely on the anchor rod 1. At this time, the spring 13 assembled at the bottom of the sliding cylinder 11 releases the accumulated force through elastic deformation and contraction, drives the sliding cylinder 11 to slide downward along the anchor rod 1, and the connecting rod 12 rotatably connected to the bottom of the sliding cylinder 11 is rotated and expanded, and the other end of the connecting rod 12 is rotatably connected to the middle of the first supporting rod 6, so that the first supporting rod 6 and the parallel second supporting rod 7 are rotated and expanded, the supporting column 9 rotatably connected to the end of the second supporting rod 7 and the anchor disc blade 10 are expanded, and then the anchor disc blade 10 is driven to be in close contact with the rock stratum to be anchored, so that the subsequent anchoring and locking operation is facilitated. Since the expansion of the anchor disc blade 10 is driven by the spring 13, not only by its own gravity, the anchor disc blade 10 can be expanded completely without being affected in the non-vertical state, so that the supporting effect and stability during the anchoring process are maintained.

[0046] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. An expanding anchor disc comprising an anchor rod (1) on which a sliding cylinder (11) is fitted, characterized in that : The top end of the anchor rod (1) is rotatably provided with a handle (2), the bottom end of the anchor rod (1) is fixedly provided with a support (3), the lower section of the support (3) is integrally provided with a base (4), the bottom of the base (4) is integrally provided with an anchor head (5), the outer circumferential wall of the support (3) is rotatably connected with a first support rod (6), the outer circumferential wall of the base (4) is rotatably connected with a second support rod (7); The end of the first support rod (6) away from the support (3) is rotatably connected with a sleeve (8), the end of the second support rod (7) away from the base (4) is rotatably connected with a support column (9), the support column (9) is further fixedly provided with an anchor disc blade (10), the slide cylinder (11) and the support (3) are assembled with a spring (13), the bottom end of the slide cylinder (11) is further rotatably connected with a connecting rod (12); The handle (2) is integrally provided with a limiting piece (14), the top end of the slide cylinder (11) is integrally provided with a limiting ring (15).

2. The spread footing of claim 1, wherein, The end of the connecting rod (12) away from the slide cylinder (11) is rotatably connected with the middle part of the first support rod (6).

3. The spread footing of claim 1, wherein, The sleeve (8) is matched with the support column (9) and is sleeved.

4. The spread footing of claim 1, wherein, The limiting piece (14) and the limiting ring (15) are matched and abutted and limited, the limiting ring (15) is further provided with a sliding groove (16) for the sliding of the limiting piece (14).

5. The spread footing of claim 1, wherein, The first support rod (6) and the second support rod (7) are arranged in parallel.

6. The spread footing of claim 1, wherein, The anchor disc blade (10) is arranged in a fan shape and the expansion radius is greater than the radius of the anchor head (5).

7. The spread footing of claim 1, wherein, The bottom of the anchor head (5) is arranged in a sharp shape and is provided with a wedge-shaped groove.

8. The spread footing of claim 1, wherein, The spring (13) pulls the bottom of the slide cylinder (11) through elastic contraction.

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