CN220979386U - A hole expansion device for construction slope anchor support - Google Patents

A hole expansion device for construction slope anchor support Download PDF

Info

Publication number
CN220979386U
CN220979386U CN202322684098.4U CN202322684098U CN220979386U CN 220979386 U CN220979386 U CN 220979386U CN 202322684098 U CN202322684098 U CN 202322684098U CN 220979386 U CN220979386 U CN 220979386U
Authority
CN
China
Prior art keywords
casing
reaming cutter
push rod
reaming
hole
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202322684098.4U
Other languages
Chinese (zh)
Inventor
孔赛博
刘志方
李文龙
武博
廖思航
许瀚升
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangzhou Urban Planning Survey and Design Institute
Original Assignee
Guangzhou Urban Planning Survey and Design Institute
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangzhou Urban Planning Survey and Design Institute filed Critical Guangzhou Urban Planning Survey and Design Institute
Priority to CN202322684098.4U priority Critical patent/CN220979386U/en
Application granted granted Critical
Publication of CN220979386U publication Critical patent/CN220979386U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Earth Drilling (AREA)

Abstract

本实用新型涉及边坡支护技术领域,公开了一种用于施工边坡锚杆支护的扩孔装置,包括套管、推杆、扩孔刀头及锁止结构,所述扩孔刀头安装于所述套管内,所述扩孔刀头包括至少两个扩孔刀体,各所述扩孔刀体的第一端均与所述套管铰接,且所述扩孔刀体与所述套管之间连接有扭转弹簧,所述套管上对应设有用于供所述扩孔刀体穿过的过孔,所述推杆从所述套管的后端插置于所述套管内部,所述锁止结构位于所述套管的后端,用于将所述推杆锁止于所述套管上。通过采用该扩孔装置将钻孔底部形成一个锥形的腔体,扩孔稳定性高,保证扩孔性能,且便于刀具回收。

The utility model relates to the technical field of slope support, and discloses a hole reaming device for constructing slope anchor support, including a casing, a push rod, a hole reaming cutter head and a locking structure, wherein the hole reaming cutter head is installed in the casing, and the hole reaming cutter head includes at least two hole reaming cutter bodies, the first end of each hole reaming cutter body is hinged to the casing, and a torsion spring is connected between the hole reaming cutter body and the casing, and the casing is provided with a corresponding through hole for the hole reaming cutter body to pass through, the push rod is inserted into the casing from the rear end of the casing, and the locking structure is located at the rear end of the casing, and is used to lock the push rod on the casing. By adopting the hole reaming device, a conical cavity is formed at the bottom of the drill hole, the hole reaming stability is high, the hole reaming performance is guaranteed, and the tool recovery is convenient.

Description

一种用于施工边坡锚杆支护的扩孔装置A hole expansion device for construction slope anchor support

技术领域Technical Field

本实用新型涉及边坡支护技术领域,特别是涉及一种用于施工边坡锚杆支护的扩孔装置。The utility model relates to the technical field of slope support, in particular to a hole enlarging device used for constructing slope anchor support.

背景技术Background technique

目前,锚杆支护是边坡支护常用的支护方式,其具备施工快捷高效、对边坡扰动小、支护效果显著的特点。但由于边坡工程的复杂地质条件和施工规范程度不高等问题,边坡锚杆失效的问题时常发生。其中锚杆头部的锚固质量很大程度决定了锚杆的支护效果,但锚杆头部周围的土体会由于降雨冲蚀、不良地质体等原因造成锚头部位土体软化、空洞,最终导致锚头松动,锚杆锚固效果下降,甚至失效。近似圆柱形的钻孔会由于注浆后的锚杆与土体的摩擦力偏小,一旦钻孔周围的某一段土体发生破坏,锚杆的锚固效果便会锐减。At present, anchor support is a commonly used support method for slope support. It has the characteristics of fast and efficient construction, small disturbance to the slope, and significant support effect. However, due to the complex geological conditions of slope engineering and the low degree of construction specifications, the problem of slope anchor failure often occurs. The anchoring quality of the anchor head largely determines the support effect of the anchor, but the soil around the anchor head will soften and become hollow due to rainfall erosion, poor geological bodies, etc., which will eventually lead to loosening of the anchor head, reduced anchoring effect of the anchor, and even failure. The friction between the anchor and the soil after grouting is relatively small for a nearly cylindrical borehole. Once a section of the soil around the borehole is damaged, the anchoring effect of the anchor will be sharply reduced.

基于此,现有技术尝试在钻孔后,将钻孔的底部扩孔成锥形,从而改善锚杆抗风险能力,提高锚固效果;但目前大部分扩孔装置存在扩孔性能差、扩孔不稳定、刀具回收难等问题。Based on this, the existing technology attempts to expand the bottom of the hole into a cone after drilling, so as to improve the risk resistance of the anchor rod and enhance the anchoring effect; however, most of the current expansion devices have problems such as poor expansion performance, unstable expansion, and difficulty in tool recovery.

实用新型内容Utility Model Content

本实用新型的目的是:提供一种用于施工边坡锚杆支护的扩孔装置,能够将钻孔底部形成一个锥形的腔体,扩孔稳定性高,保证扩孔性能,且便于刀具回收。The utility model aims to provide a hole enlarging device for construction slope anchor support, which can form a conical cavity at the bottom of the drill hole, has high hole enlarging stability, ensures hole enlarging performance, and is convenient for tool recovery.

为了实现上述目的,本实用新型提供了一种用于施工边坡锚杆支护的扩孔装置,包括套管、推杆、扩孔刀头及锁止结构,所述扩孔刀头安装于所述套管内,且靠近所述套管的前端,所述扩孔刀头包括至少两个扩孔刀体,各所述扩孔刀体的第一端均与所述套管铰接,且所述扩孔刀体与所述套管之间连接有扭转弹簧,且在所述扩孔刀头处于自然状态时,各所述扩孔刀体收拢,所述扩孔刀体的第二端位于所述第一端的后方,所述套管上对应于各所述扩孔刀体的位置设有用于供所述扩孔刀体穿过的过孔,所述推杆从所述套管的后端插置于所述套管内部,所述推杆能够相对所述套管滑动,进而使得所述推杆的前端推动各所述扩孔刀体绕所述套管转动至扩张,所述锁止结构位于所述套管的后端,用于将所述推杆锁止于所述套管上。In order to achieve the above-mentioned purpose, the utility model provides a reaming device for constructing slope anchor support, comprising a casing, a push rod, a reaming cutter head and a locking structure, the reaming cutter head being installed in the casing and close to the front end of the casing, the reaming cutter head comprising at least two reaming cutter bodies, the first end of each reaming cutter body being hinged to the casing, and a torsion spring being connected between the reaming cutter body and the casing, and when the reaming cutter head is in a natural state, each reaming cutter body is retracted, the second end of the reaming cutter body is located behind the first end, and a through hole for the reaming cutter body to pass through is provided on the casing corresponding to the position of each reaming cutter body, the push rod is inserted into the casing from the rear end of the casing, the push rod can slide relative to the casing, so that the front end of the push rod pushes each reaming cutter body to rotate around the casing to expand, and the locking structure is located at the rear end of the casing, for locking the push rod on the casing.

进一步地,所述套管与所述推杆螺接。Furthermore, the sleeve is threadedly connected to the push rod.

进一步地,所述推杆的前端具有锥形头,所述锥形头从前至后外径逐渐增大。Furthermore, the front end of the push rod has a conical head, and the outer diameter of the conical head gradually increases from front to back.

进一步地,当所述扩孔刀头处于所述自然状态时,至少两个所述扩孔刀体的后端之间具有撑开间隙。Furthermore, when the reaming cutter head is in the natural state, there is a support gap between the rear ends of at least two of the reaming cutter bodies.

进一步地,所述扩孔刀体的刀刃面上呈锯齿状。Furthermore, the blade surface of the reaming tool body is serrated.

进一步地,所述套管内部设有限位环,所述推杆上设有用于与所述限位环配合限位的凸台,所述凸台位于所述限位环的后方。Furthermore, a limiting ring is provided inside the sleeve, and a boss for cooperating with the limiting ring for limiting position is provided on the push rod, and the boss is located behind the limiting ring.

进一步地,所述锁止结构包括锁紧螺母和螺栓,所述螺栓沿所述套管径向穿插于所述套管和所述推杆,所述锁紧螺母螺接于所述螺栓上。Furthermore, the locking structure includes a locking nut and a bolt, the bolt is radially inserted into the sleeve and the push rod along the sleeve, and the locking nut is threaded onto the bolt.

进一步地,所述套管的后端外周设有固定环。Furthermore, a fixing ring is provided on the outer periphery of the rear end of the sleeve.

进一步地,所述推杆的后端脱离所述套管的部分设有用于与转机连接的连接部。Furthermore, the rear end of the push rod separated from the sleeve is provided with a connecting portion for connecting to a rotary machine.

进一步地,所述扩孔刀头设置有两个所述扩孔刀体,且两个所述扩孔刀体的的后端通过一转轴与所述套管铰接。Furthermore, the reaming cutter head is provided with two reaming cutter bodies, and the rear ends of the two reaming cutter bodies are hinged to the sleeve via a rotating shaft.

本实用新型实施例一种用于施工边坡锚杆支护的扩孔装置与现有技术相比,其有益效果在于:Compared with the prior art, the hole enlarging device for construction slope anchor support in the embodiment of the utility model has the following beneficial effects:

本实用新型通过采用可回收的锚杆孔扩孔装置将钻孔底部形成一个锥形的腔体,扩孔稳定性高,保证扩孔性能,且便于刀具回收。The utility model forms a conical cavity at the bottom of the drill hole by adopting a recyclable anchor hole expansion device, has high expansion stability, ensures expansion performance, and is convenient for tool recovery.

附图说明BRIEF DESCRIPTION OF THE DRAWINGS

图1是本实用新型实施例用于施工边坡锚杆支护的扩孔装置自然状态下的正视结构示意图。Fig. 1 is a schematic diagram of the front view of the structure of the hole enlarging device for constructing slope anchor support in a natural state according to an embodiment of the utility model.

图2是本实用新型实施例用于施工边坡锚杆支护的扩孔装置自然状态下的侧视结构示意图。FIG. 2 is a schematic side view of the structure of the hole enlarging device used for slope anchor support construction in a natural state according to an embodiment of the utility model.

图3是本实用新型实施例用于施工边坡锚杆支护的扩孔装置工作状态下的结构示意图。FIG3 is a schematic structural diagram of the embodiment of the utility model used for the expansion device of the slope anchor support in the working state.

图中,1、套管;2、推杆;3、扩孔刀头;4、扭转弹簧;5、轴销;6、弹簧扭套;7、螺纹;8、锁止结构;9、固定环;10、限位环;11、过孔。In the figure, 1. sleeve; 2. push rod; 3. reaming cutter head; 4. torsion spring; 5. shaft pin; 6. spring torsion sleeve; 7. thread; 8. locking structure; 9. fixing ring; 10. limiting ring; 11. through hole.

具体实施方式Detailed ways

下面结合附图和实施例,对本实用新型的具体实施方式作进一步详细描述。以下实施例用于说明本实用新型,但不用来限制本实用新型的范围。The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

在本实用新型描述中,采用的术语“上”、“下”、“左”、“右”、“前”、“后”、“内”、“外”、“横向”、“纵向”等指示的方位或位置关系为基于附图所示的方位或位置关系,仅为了方便描述本实用新型和简化描述,并非用于限定所指示的装置、元件或组成部分必须具有特定方位,或以特定方位进行构造和操作,因此不能理解为对本实用新兴的限制。对于本领域普通技术人员而言,可以根据具体情况理解这些术语在本实用新型中的具体含义。In the description of the present invention, the terms "upper", "lower", "left", "right", "front", "back", "inner", "outer", "lateral", "longitudinal" and the like used to indicate the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only used to facilitate the description of the present invention and simplify the description, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. For ordinary technicians in this field, the specific meanings of these terms in the present invention can be understood according to specific circumstances.

在本实用新型描述中,术语“设有”、“设置”、“连接”、“放置”应做广义理解,例如,可为固定连接、可拆卸连接,或整体式构造;可以是机械连接,或电连接;可以是直接相连,或者是通过中间媒介间接相连,又或者是两个装置、元件或组成部分之间内部的连通。对于本领域普通技术人员而言,可以根据具体情况理解上述术语在本实用新型中的具体含义。In the description of the present utility model, the terms "provided with", "set", "connected", and "placed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

此外,术语“第一”、“第二”等主要是用于区分不同的装置、元件或组成部分(具体的种类和构造可能相同也可能不同),并非用于表明或暗示所指示装置、元件或组成部分的相对重要性和数量。除非另有说明,“多个”的含义为两个或两个以上。In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, "plurality" means two or more.

如图1、图2所示,本实用新型实施例优选实施例的一种用于施工边坡锚杆支护的扩孔装置,包括套管1、推杆2、扩孔刀头3及锁止结构8,扩孔刀头3安装于套管1内,且靠近套管1的前端,扩孔刀头3包括至少两个扩孔刀体,各扩孔刀体的第一端均与套管1铰接,且扩孔刀体与套管1之间连接有扭转弹簧4,且在扩孔刀头3处于自然状态时,各扩孔刀体收拢,扩孔刀体的第二端位于扩孔刀体第一端的后方,套管1上对应于各扩孔刀体的位置设有用于供扩孔刀体穿过的过孔11,推杆2从套管1的后端插置于套管1内部,推杆2能够相对套管1滑动,进而使得推杆2的前端推动各扩孔刀体绕套管1转动至扩张,锁止结构8位于套管1的后端,用于将推杆2锁止于套管1上。扭转弹簧4与扩孔刀头3的连接件可优选为弹簧扭套6,扭转弹簧4与套管1连接可优选为插接于套管1前端的轴销5。通过扭转弹簧4将安装于套管1上的扩孔刀头3铰合成剪刀状,通过推杆2插入扩孔刀头3使扩孔刀头3扩开以实现扩孔功能。As shown in Figures 1 and 2, a reaming device for constructing slope anchor support in a preferred embodiment of the utility model comprises a casing 1, a push rod 2, a reaming cutter head 3 and a locking structure 8. The reaming cutter head 3 is installed in the casing 1 and is close to the front end of the casing 1. The reaming cutter head 3 comprises at least two reaming cutter bodies. The first end of each reaming cutter body is hinged to the casing 1, and a torsion spring 4 is connected between the reaming cutter body and the casing 1. When the reaming cutter head 3 is in a natural state, each reaming cutter body is retracted, and the second end of the reaming cutter body is located behind the first end of the reaming cutter body. A through hole 11 for the reaming cutter body to pass through is provided on the casing 1 corresponding to the position of each reaming cutter body. The push rod 2 is inserted into the casing 1 from the rear end of the casing 1, and the push rod 2 can slide relative to the casing 1, so that the front end of the push rod 2 pushes each reaming cutter body to rotate around the casing 1 to expand. The locking structure 8 is located at the rear end of the casing 1, and is used to lock the push rod 2 on the casing 1. The connecting piece between the torsion spring 4 and the reaming cutter head 3 may preferably be a spring torsion sleeve 6, and the connection between the torsion spring 4 and the sleeve 1 may preferably be an axle pin 5 plugged into the front end of the sleeve 1. The reaming cutter head 3 installed on the sleeve 1 is hinged into a scissors shape by the torsion spring 4, and the reaming cutter head 3 is expanded by inserting the push rod 2 into the reaming cutter head 3 to realize the reaming function.

优选地,套管1与推杆2螺接。套管1和推杆2螺接缓慢进给增强了扩孔刀头3的扩孔稳定性。Preferably, the sleeve 1 is threadedly connected to the push rod 2. The threaded connection between the sleeve 1 and the push rod 2 and the slow feeding enhance the reaming stability of the reaming cutter head 3.

优选地,推杆2的前端具有锥形头,锥形头从前至后外径逐渐增大。推杆2前端设为锥形头便于与扩孔刀头3配合推进扩孔。Preferably, the front end of the push rod 2 has a conical head, and the outer diameter of the conical head gradually increases from front to back. The front end of the push rod 2 is set as a conical head to facilitate the cooperation with the reaming cutter head 3 to advance the reaming.

优选地,如图3所述当扩孔刀头3处于自然状态时,至少两个扩孔刀体的后端之间具有撑开间隙。在自然状态下扩孔刀头3后端留有撑开间隙,提供了推杆2配合扩开扩孔刀头3的空间。Preferably, as shown in Fig. 3, when the reaming cutter head 3 is in the natural state, there is a gap between the rear ends of at least two reaming cutter bodies. In the natural state, there is a gap at the rear end of the reaming cutter head 3, providing space for the push rod 2 to cooperate with the reaming cutter head 3 to expand.

优选地,扩孔刀体的刀刃面上呈锯齿状。将扩孔刀体刀刃面设为锯齿状有利于增大扩孔后锥形孔的表面积,便于增加锚固时的接触面积,提高锚固效果。Preferably, the blade surface of the reaming cutter body is serrated. Setting the blade surface of the reaming cutter body to be serrated is conducive to increasing the surface area of the tapered hole after reaming, facilitating the increase of the contact area during anchoring, and improving the anchoring effect.

优选地,套管1内部设有限位环10,推杆2上设有用于与限位环10配合限位的凸台,凸台位于限位环10的后方。在套管1内部设有限位环10,在推杆2外周配合设置凸台限定推杆2的进给深度,从而限定扩孔刀头3的开角,防止扩孔过大,破坏扭转弹簧4的扭转力。Preferably, a limiting ring 10 is provided inside the sleeve 1, and a boss for cooperating with the limiting ring 10 is provided on the push rod 2, and the boss is located behind the limiting ring 10. A limiting ring 10 is provided inside the sleeve 1, and a boss is provided on the outer periphery of the push rod 2 to limit the feeding depth of the push rod 2, thereby limiting the opening angle of the reaming cutter head 3 to prevent the hole from being expanded too much and destroying the torsional force of the torsion spring 4.

优选地,锁止结构8包括锁紧螺母和螺栓,螺栓沿套管1径向穿插于套管1和推杆2,锁紧螺母螺接于螺栓上。通过锁止结构8锁紧套管1和推杆2,使套管1和推杆2在扩孔过程中相对静止。Preferably, the locking structure 8 includes a locking nut and a bolt, the bolt is inserted into the casing 1 and the push rod 2 along the radial direction of the casing 1, and the locking nut is threaded on the bolt. The casing 1 and the push rod 2 are locked by the locking structure 8, so that the casing 1 and the push rod 2 are relatively stationary during the expansion process.

优选地,套管1的后端外周设有固定环9。在套管1的后端外周设有固定环9能限制套管1进入钻孔的深度,且便于扩孔时限制套管1的转动。Preferably, a fixing ring 9 is provided on the outer periphery of the rear end of the casing 1. The fixing ring 9 provided on the outer periphery of the rear end of the casing 1 can limit the depth of the casing 1 entering the borehole and facilitate limiting the rotation of the casing 1 during hole expansion.

优选地,推杆2的后端脱离套管1的部分设有用于与钻机连接的连接部。推杆2脱离套管1后端设有连接部提供给了钻机与推杆连接的位置。Preferably, the rear end of the push rod 2 separated from the casing 1 is provided with a connection part for connecting with a drilling rig. The rear end of the push rod 2 separated from the casing 1 is provided with a connection part to provide a position for connecting the drilling rig with the push rod.

优选地,扩孔刀头3设置有两个扩孔刀体,且两个扩孔刀体的前端通过一轴销5与套管1铰接。Preferably, the reaming cutter head 3 is provided with two reaming cutter bodies, and the front ends of the two reaming cutter bodies are hinged to the sleeve 1 through an axle pin 5 .

本实用新型的工作过程为:先由钻机完成钻孔工作,再通过本实用新型所提供的用于施工边坡锚杆支护的扩孔装置进行扩孔。首先将扩孔装置的套管1与推杆2通过螺纹7连接,推杆2的锥形头与扩孔刀头3保持间隙,以免扩孔刀头3张开阻碍扩孔装置进入钻孔,连接钻机与推杆2,将扩孔装置通过钻机送进钻孔孔底,此时通过固定环9固定套管,通过钻机旋转推杆2使其沿螺纹7往孔底方向推进,推杆2推动扩孔刀头3使其缓慢张开破入孔底岩土体内,待推杆2推进至套管1的限位环10时停止钻机,通过锁止结构8固定套管1与推杆2使其共同旋转,再次开启钻机,扩孔刀头3便随套管1旋转开始扩孔,在钻孔底部形成一个锥形腔体。The working process of the utility model is as follows: the drilling work is first completed by the drilling machine, and then the hole is expanded by the hole expansion device for construction of slope anchor support provided by the utility model. First, the casing 1 of the hole expansion device is connected with the push rod 2 through the thread 7, and the conical head of the push rod 2 maintains a gap with the hole expansion cutter head 3 to prevent the hole expansion cutter head 3 from opening and hindering the hole expansion device from entering the borehole. The drilling machine and the push rod 2 are connected, and the hole expansion device is sent to the bottom of the borehole through the drilling machine. At this time, the casing is fixed by the fixing ring 9, and the push rod 2 is rotated by the drilling machine to make it advance toward the bottom of the hole along the thread 7. The push rod 2 pushes the hole expansion cutter head 3 to slowly open and break into the rock and soil at the bottom of the hole. When the push rod 2 is pushed to the limit ring 10 of the casing 1, the drilling machine is stopped, and the casing 1 and the push rod 2 are fixed by the locking structure 8 to rotate together. The drilling machine is turned on again, and the hole expansion cutter head 3 starts to expand with the rotation of the casing 1, forming a conical cavity at the bottom of the borehole.

综上,本实用新型实施例提供一种用于施工边坡锚杆支护的扩孔装置,其通过采用可回收的锚杆孔扩孔装置将钻孔底部形成一个锥形的腔体,扩孔稳定性高,保证扩孔性能,且便于刀具回收。In summary, the embodiment of the utility model provides a hole expanding device for constructing slope anchor support, which forms a conical cavity at the bottom of the drill hole by adopting a recyclable anchor hole expanding device, has high hole expanding stability, ensures hole expanding performance, and facilitates tool recovery.

以上所述仅是本实用新型的优选实施方式,应当指出,对于本技术领域的普通技术人员来说,在不脱离本实用新型技术原理的前提下,还可以做出若干改进和替换,这些改进和替换也应视为本实用新型的保护范围。The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims (10)

1.一种用于施工边坡锚杆支护的扩孔装置,其特征在于:包括套管、推杆、扩孔刀头及锁止结构,所述扩孔刀头安装于所述套管内,且靠近所述套管的前端,所述扩孔刀头包括至少两个扩孔刀体,各所述扩孔刀体的第一端均与所述套管铰接,且所述扩孔刀体与所述套管之间连接有扭转弹簧,且在所述扩孔刀头处于自然状态时,各所述扩孔刀体收拢,所述扩孔刀体的第二端位于所述第一端的后方,所述套管上对应于各所述扩孔刀体的位置设有用于供所述扩孔刀体穿过的过孔,所述推杆从所述套管的后端插置于所述套管内部,所述推杆能够相对所述套管滑动,进而使得所述推杆的前端推动各所述扩孔刀体绕所述套管转动至扩张,所述锁止结构位于所述套管的后端,用于将所述推杆锁止于所述套管上。1. A reaming device for constructing slope anchor support, characterized in that it comprises a casing, a push rod, a reaming cutter head and a locking structure, the reaming cutter head being installed in the casing and close to the front end of the casing, the reaming cutter head comprising at least two reaming cutter bodies, the first end of each of the reaming cutter bodies being hinged to the casing, and a torsion spring being connected between the reaming cutter body and the casing, and when the reaming cutter head is in a natural state, each of the reaming cutter bodies is retracted, the second end of the reaming cutter body is located behind the first end, a through hole for the reaming cutter body to pass through is provided on the casing corresponding to the position of each of the reaming cutter bodies, the push rod is inserted into the casing from the rear end of the casing, the push rod can slide relative to the casing, so that the front end of the push rod pushes each of the reaming cutter bodies to rotate around the casing to expand, and the locking structure is located at the rear end of the casing, used to lock the push rod on the casing. 2.根据权利要求1所述的用于施工边坡锚杆支护的扩孔装置,其特征在于:所述套管与所述推杆螺接。2. The hole enlarging device for constructing slope anchor support according to claim 1, characterized in that the sleeve is threadedly connected to the push rod. 3.根据权利要求1所述的用于施工边坡锚杆支护的扩孔装置,其特征在于:所述推杆的前端具有锥形头,所述锥形头从前至后外径逐渐增大。3. The hole enlarging device for constructing slope anchor support according to claim 1 is characterized in that the front end of the push rod has a conical head, and the outer diameter of the conical head gradually increases from front to back. 4.根据权利要求1所述的用于施工边坡锚杆支护的扩孔装置,其特征在于:当所述扩孔刀头处于所述自然状态时,至少两个所述扩孔刀体的后端之间具有撑开间隙。4. The reaming device for constructing slope anchor support according to claim 1 is characterized in that when the reaming cutter head is in the natural state, there is a support gap between the rear ends of at least two of the reaming cutter bodies. 5.根据权利要求1所述的用于施工边坡锚杆支护的扩孔装置,其特征在于:所述扩孔刀体的刀刃面上呈锯齿状。5. The hole-expanding device for constructing slope anchor support according to claim 1, characterized in that the blade surface of the hole-expanding cutter body is serrated. 6.根据权利要求1所述的用于施工边坡锚杆支护的扩孔装置,其特征在于:所述套管内部设有限位环,所述推杆上设有用于与所述限位环配合限位的凸台,所述凸台位于所述限位环的后方。6. The hole enlarging device for constructing slope anchor support according to claim 1 is characterized in that a limiting ring is provided inside the casing, and a boss for cooperating with the limiting ring for limiting position is provided on the push rod, and the boss is located behind the limiting ring. 7.根据权利要求1所述的用于施工边坡锚杆支护的扩孔装置,其特征在于:所述锁止结构包括锁紧螺母和螺栓,所述螺栓沿所述套管径向穿插于所述套管和所述推杆,所述锁紧螺母螺接于所述螺栓上。7. The hole enlarging device for constructing slope anchor support according to claim 1 is characterized in that: the locking structure includes a locking nut and a bolt, the bolt is radially inserted into the casing and the push rod along the casing, and the locking nut is threaded onto the bolt. 8.根据权利要求1所述的用于施工边坡锚杆支护的扩孔装置,其特征在于:所述套管的后端外周设有固定环。8. The hole enlarging device for constructing slope anchor support according to claim 1, characterized in that a fixing ring is provided on the outer periphery of the rear end of the casing. 9.根据权利要求1所述的用于施工边坡锚杆支护的扩孔装置,其特征在于:所述推杆的后端设有用于与转机连接的连接部。9. The hole enlarging device for construction of slope anchor support according to claim 1, characterized in that a connecting portion for connecting to a turning machine is provided at the rear end of the push rod. 10.根据权利要求1-9中任一项所述的用于施工边坡锚杆支护的扩孔装置,其特征在于:所述扩孔刀头设置有两个所述扩孔刀体,且两个所述扩孔刀体的后端通过一转轴与所述套管铰接。10. The reaming device for constructing slope anchor support according to any one of claims 1 to 9, characterized in that the reaming cutter head is provided with two reaming cutter bodies, and the rear ends of the two reaming cutter bodies are hinged to the casing through a rotating shaft.
CN202322684098.4U 2023-10-08 2023-10-08 A hole expansion device for construction slope anchor support Active CN220979386U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202322684098.4U CN220979386U (en) 2023-10-08 2023-10-08 A hole expansion device for construction slope anchor support

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202322684098.4U CN220979386U (en) 2023-10-08 2023-10-08 A hole expansion device for construction slope anchor support

Publications (1)

Publication Number Publication Date
CN220979386U true CN220979386U (en) 2024-05-17

Family

ID=91060399

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202322684098.4U Active CN220979386U (en) 2023-10-08 2023-10-08 A hole expansion device for construction slope anchor support

Country Status (1)

Country Link
CN (1) CN220979386U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118756682A (en) * 2024-09-06 2024-10-11 中铁一局集团有限公司 A road soil condition detection device for highway engineering

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118756682A (en) * 2024-09-06 2024-10-11 中铁一局集团有限公司 A road soil condition detection device for highway engineering

Similar Documents

Publication Publication Date Title
TWI632287B (en) Drilling device, method for making the same and method of providing a drill hole having a support pipe for use in a pipe umbrella
CN220979386U (en) A hole expansion device for construction slope anchor support
CN105401882B (en) A kind of tunnel anchor hole bottom hole Counterboring apparatus
CN106988773B (en) Reduce the plant anchor pole method of suspension roof support sliding unstability
AU2014242058B2 (en) Break-away screw ground anchor
CN113605949B (en) Supporting construction of self-drilling type anchor rod
CN115595968B (en) A recyclable anchor rod with end grouting anchor
CN209687417U (en) Novel reaming bit
US3960222A (en) Tool for cutting groove in hole
CN118223477A (en) Anchor rod reinforcement structure for power transmission line engineering tower slope and anchoring method thereof
CN202989913U (en) Pointless spiral pile
CN205654301U (en) Multi-wing diamond compact anti-burying reaming bit
KR102214739B1 (en) Anchor Support with Drill and Construction Method thereof
CN201330561Y (en) Coring bit with back reaming function
CN207673675U (en) Inverted-supporting type self undercut anchor
CN219654629U (en) Drill bit device
CN209704502U (en) A kind of auger boring slip casting drilling machine
KR20170125476A (en) Apparatus for forming furrow of anchor bolt
CN111322028A (en) A rotatable overshot used for underground coal mines and its salvage method
CN205713988U (en) A kind of efficient rotary digs rock drill bit
CN201460739U (en) Three-wing articulated concrete deep reamer
JPH0324708Y2 (en)
CN218067119U (en) Core tube beneficial to taking undisturbed soil sample
CN219119161U (en) Long and short blade combined small-aperture anchor cable anchoring hole reaming machine
RU2012761C1 (en) Polycentric reamer

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant