CN206159225U - Rotatory fastening bolt of unilateral - Google Patents
Rotatory fastening bolt of unilateral Download PDFInfo
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- CN206159225U CN206159225U CN201621186560.1U CN201621186560U CN206159225U CN 206159225 U CN206159225 U CN 206159225U CN 201621186560 U CN201621186560 U CN 201621186560U CN 206159225 U CN206159225 U CN 206159225U
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- 238000009434 installation Methods 0.000 abstract description 10
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- 238000010276 construction Methods 0.000 description 12
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- 239000010959 steel Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
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Abstract
本实用新型公开了一种单侧旋转紧固螺栓，包括螺杆，螺杆后端为螺帽，螺杆的前部插入到套管中，螺杆的前端设有锥形螺母，套管的后端设有肩，套管的前部纵向设有多个狭槽，锥形螺母的小端朝向所述套管的前端。螺母的锥形端的表面设有凹槽。套管的内径大于所述螺杆的直径，所述锥形螺母的小端直径小于所述套管的内径，所述锥形螺母的大端直径大于所述套管的内径。肩的侧面设有夹持平台。套管的外径和锥形螺母的大端外径小于工件安装孔的直径，套管的肩的外径大于工件安装孔的直径。实施安装时，仅需使用工具对螺帽和肩进行拧紧，即可完成紧固效果，操作较为容易，且配套工具简单。
The utility model discloses a one-side rotating fastening bolt, which comprises a screw rod, the rear end of the screw rod is a nut, the front part of the screw rod is inserted into a casing, the front end of the screw rod is provided with a tapered nut, and the rear end of the casing pipe is provided with a shoulder, the front of the sleeve is longitudinally provided with a plurality of slots, and the small end of the tapered nut faces the front of the sleeve. The surface of the tapered end of the nut is provided with grooves. The inner diameter of the sleeve is larger than the diameter of the screw rod, the diameter of the small end of the tapered nut is smaller than the inner diameter of the sleeve, and the diameter of the large end of the tapered nut is larger than the inner diameter of the sleeve. A clamping platform is provided on the side of the shoulder. The outer diameter of the sleeve pipe and the large end of the tapered nut are smaller than the diameter of the workpiece installation hole, and the outer diameter of the shoulder of the sleeve pipe is larger than the diameter of the workpiece installation hole. When installing, you only need to use tools to tighten the nut and the shoulder to complete the fastening effect, the operation is relatively easy, and the supporting tools are simple.
Description
技术领域technical field
本实用新型涉及一种用于工程工件中进行单侧安装的紧固螺栓，尤其涉及一种单侧旋转紧固螺栓。The utility model relates to a fastening bolt used for one-side installation in engineering workpieces, in particular to a one-side rotating fastening bolt.
背景技术Background technique
以设计的标准化、构配件生产的工厂化、施工的装配化和机械化、产品供应的社会化和市场消费的系列化为特征的工业化装配建造技术是传统建造工业实现产业转型与升级的必然趋势，其突出优势是施工速度快、建设周期短、劳动力需求小、污染环境少。因此，预制装配式钢结构体系最能体现并发挥预制装配式建筑体系的核心优势，最具发展潜力和推广价值。而螺栓连接有利于加快施工速度，缩短工期，易于控制施工质量，受外界环境因素影响小，操作简单，无需特殊技术工人，节省人工费，从而提高经济效益。The industrialized assembly construction technology characterized by the standardization of design, the factoryization of component production, the assembly and mechanization of construction, the socialization of product supply and the serialization of market consumption is an inevitable trend for the traditional construction industry to realize industrial transformation and upgrading. Its outstanding advantages are fast construction speed, short construction period, small labor demand and less environmental pollution. Therefore, the prefabricated steel structure system can best reflect and exert the core advantages of the prefabricated building system, and has the greatest development potential and promotion value. The bolt connection is conducive to speeding up the construction, shortening the construction period, easy to control the construction quality, less affected by external environmental factors, simple operation, no need for special skilled workers, saving labor costs, thereby improving economic benefits.
单边螺栓可以实现单侧安装、单侧拧紧功能，因而不需要额外加工安装孔，能在不破坏钢管其他部位的前提下，完成螺栓连接，既能规避普通螺栓所产生的问题，又能使焊接量尽可能减少，从而节省施工量和人工费，具有现场施工简单方便、焊接量极小的特点。同时，在一定条件下其力学性能可以做到与传统高强度螺栓相媲美，非常适用于钢(管)结构的连接。Unilateral bolts can be installed on one side and tightened on one side, so there is no need for additional processing of installation holes, and the bolt connection can be completed without damaging other parts of the steel pipe, which can not only avoid the problems caused by ordinary bolts, but also enable The amount of welding is reduced as much as possible, thereby saving construction and labor costs, and has the characteristics of simple and convenient on-site construction and extremely small welding amount. At the same time, under certain conditions, its mechanical properties can be comparable to traditional high-strength bolts, and it is very suitable for the connection of steel (pipe) structures.
常见的螺栓包括螺杆和螺母两部分，一般需要在一侧插入螺杆并夹紧螺母，然后在另一侧用工具将螺帽拧紧。作业人员需要同时在构件两边作业，但在地下工程、市政工程、房建等有限作业空间，使用常见的螺栓难以实现安装；如地下工程暗挖工法采用钢波纹管代替初支格栅，钢波纹管沿开挖面轮廓拼装，环向叠加拼装中，只能单侧(波纹管内侧)进行螺栓安装。A common bolt consists of a screw and a nut. It is generally necessary to insert the screw on one side and clamp the nut, and then tighten the nut with a tool on the other side. Operators need to work on both sides of the component at the same time, but in limited working spaces such as underground engineering, municipal engineering, and housing construction, it is difficult to use common bolts to achieve installation; The pipes are assembled along the contour of the excavation surface, and in the circumferential superimposed assembly, only one side (the inner side of the bellows) can be bolted.
实用新型内容Utility model content
本实用新型的目的是提供一种操作简单、施工方便的单侧旋转紧固螺栓。The purpose of the utility model is to provide a single-side rotating fastening bolt with simple operation and convenient construction.
本实用新型的目的是通过以下技术方案实现的：The purpose of this utility model is achieved by the following technical solutions:
本实用新型的单侧旋转紧固螺栓，包括螺杆，所述螺杆后端为螺帽，所述螺杆的前部插入到套管中，所述螺杆的前端设有锥形螺母，所述套管的后端设有肩，所述套管的前部纵向设有多个狭槽，所述锥形螺母的小端朝向所述套管的前端。The one-side rotating fastening bolt of the present utility model comprises a screw rod, the rear end of the screw rod is a nut, the front part of the screw rod is inserted into the casing, the front end of the screw rod is provided with a tapered nut, and the casing pipe The rear end of the sleeve is provided with a shoulder, the front of the sleeve is longitudinally provided with a plurality of slots, and the small end of the tapered nut faces the front end of the sleeve.
由上述本实用新型提供的技术方案可以看出，本实用新型实施例提供的单侧旋转紧固螺栓，实施安装时，仅需使用工具对螺帽和肩进行拧紧，即可完成紧固效果，操作较为容易，且配套工具简单。It can be seen from the above-mentioned technical solution provided by the utility model that when installing the one-side rotating fastening bolt provided by the embodiment of the utility model, it is only necessary to use tools to tighten the nut and the shoulder to complete the fastening effect. The operation is relatively easy, and the supporting tools are simple.
附图说明Description of drawings
图1a为本实用新型实施例提供的单侧旋转紧固螺栓的三维结构前视图；Fig. 1a is a front view of the three-dimensional structure of the one-side rotating fastening bolt provided by the embodiment of the present invention;
图1b为本实用新型实施例提供的单侧旋转紧固螺栓的三维结构后视示意图；Figure 1b is a schematic rear view of the three-dimensional structure of the one-side rotating fastening bolt provided by the embodiment of the present invention;
图2为本实用新型实施例工作使用状态示意图；Fig. 2 is a schematic diagram of the working state of the utility model embodiment;
图3a～3c为本实用新型实施例钢结构安装示意图；Figures 3a to 3c are schematic diagrams of steel structure installation in the embodiment of the present invention;
图3d～3f为本实用新型实施例钢波纹管结构安装示意图。3d-3f are schematic diagrams of installation of the steel bellows structure of the embodiment of the utility model.
图中：In the picture:
1、螺杆，2、肩，3、套管，4、锥形螺母，5、狭槽。1. Screw, 2. Shoulder, 3. Sleeve, 4. Tapered nut, 5. Slot.
具体实施方式detailed description
下面将对本实用新型实施例作进一步地详细描述。The embodiments of the present utility model will be further described in detail below.
本实用新型的单侧旋转紧固螺栓，其较佳的具体实施方式是：The preferred embodiment of the unilateral rotary fastening bolt of the present utility model is:
包括螺杆，所述螺杆后端为螺帽，所述螺杆的前部插入到套管中，所述螺杆的前端设有锥形螺母，所述套管的后端设有肩，所述套管的前部纵向设有多个狭槽，所述锥形螺母的小端朝向所述套管的前端。It includes a screw rod, the rear end of the screw rod is a nut, the front part of the screw rod is inserted into the sleeve, the front end of the screw rod is provided with a tapered nut, the rear end of the sleeve sleeve is provided with a shoulder, and the sleeve sleeve A plurality of slots are longitudinally arranged in the front part of the front part, and the small end of the tapered nut faces the front end of the sleeve.
所述螺母的锥形端的表面设有凹槽。The surface of the tapered end of the nut is provided with grooves.
所述套管的前部纵向设有4个狭槽。The front part of the sleeve is longitudinally provided with 4 slots.
所述套管的内径大于所述螺杆的直径，所述锥形螺母的小端直径小于所述套管的内径，所述锥形螺母的大端直径大于所述套管的内径。The inner diameter of the sleeve is larger than the diameter of the screw, the diameter of the small end of the tapered nut is smaller than the inner diameter of the sleeve, and the diameter of the large end of the tapered nut is larger than the inner diameter of the sleeve.
所述的肩的侧面设有夹持平台。The side of the shoulder is provided with a clamping platform.
所述套管的外径和所述锥形螺母的大端外径小于工件安装孔的直径，所述套管的肩的外径大于工件安装孔的直径。The outer diameter of the sleeve and the large end of the tapered nut are smaller than the diameter of the workpiece installation hole, and the outer diameter of the shoulder of the sleeve is larger than the diameter of the workpiece installation hole.
本实用新型的单侧紧固螺栓，可以克服现有螺栓不能单边紧固的不足，提高螺栓的紧固效果。The one-side fastening bolt of the utility model can overcome the deficiency that the existing bolts cannot be fastened on one side, and improve the fastening effect of the bolt.
本实用新型单侧紧固的原理在于：The principle of unilateral fastening of the utility model is:
通过扭转螺栓头，使工件内侧的锥形螺母向套管方向旋进，从而逐渐撑开带有狭槽的套管各分肢，利用工件、套管肢体和螺母锥体间形成摩擦自锁，最终使套管各分肢紧靠在工件外侧安装孔壁上。By twisting the bolt head, the tapered nut on the inner side of the workpiece is screwed in the direction of the casing, so as to gradually expand the limbs of the casing with slots, and use the friction self-locking formed between the workpiece, the casing limbs and the nut cone, Finally, the limbs of the casing are abutted against the wall of the mounting hole outside the workpiece.
与已有技术相比，本实用新型有益效果体现在：Compared with the prior art, the beneficial effects of the utility model are reflected in:
本实用新型只需要在一侧安装螺栓，实现螺栓的单侧作业；The utility model only needs to install bolts on one side to realize the single-side operation of the bolts;
本实用新型中套管分肢撑开与锥形螺母密贴咬合，在荷载作用下不容易被拔出，紧固效果良好；In the utility model, the split limbs of the casing are stretched out and tightly occluded with the conical nut, which is not easy to be pulled out under the action of the load, and the fastening effect is good;
在本实用新型实施安装时，仅需使用工具对螺帽和肩进行拧紧，即可完成紧固效果，操作较为容易，且配套工具简单。When the utility model is implemented and installed, only tools are needed to tighten the nut and the shoulder to complete the fastening effect, the operation is relatively easy, and the supporting tools are simple.
本实用新型满足钢(波纹管)结构设计要求，可以很好地应用于钢结构节点连接。The utility model satisfies the design requirements of the steel (corrugated pipe) structure, and can be well applied to the node connection of the steel structure.
具体实施例：Specific examples:
如图1a至图3f所示，本实施例中的螺栓由螺杆、膨胀管(带肩的套管)和螺母等部件组成，螺母为圆锥状，圆锥的最小直径不小于膨胀管内径，当套管3拧紧的时候，螺杆1向外移动，通过螺纹的轴向移动使锥形螺母4部分移动，进而在膨胀管肢体的外周面与锥形螺母形成很大的正压力，加之圆锥的角度较小，从而使工件、膨胀肢体及圆锥间形成摩擦自锁，进而达到固定作用。As shown in Figures 1a to 3f, the bolt in this embodiment is composed of a screw, an expansion tube (shouldered sleeve) and a nut. The nut is conical, and the minimum diameter of the cone is not smaller than the inner diameter of the expansion tube. When the sleeve When the tube 3 is tightened, the screw rod 1 moves outward, and the tapered nut 4 is partially moved through the axial movement of the thread, and then a large positive pressure is formed on the outer peripheral surface of the expansion tube body and the tapered nut, and the angle of the cone is relatively small. Small, so that the friction self-locking is formed between the workpiece, the expansion limb and the cone, and then the fixing effect is achieved.
固定安装过程：Fixed installation process:
将螺栓及锥形螺母4所在一侧送入工件安装孔直至肩2与钢工件接触，准确对位；Feed the side where the bolt and the tapered nut 4 are located into the workpiece mounting hole until the shoulder 2 contacts the steel workpiece and align accurately;
在工件内侧采用开口扳手夹紧套管肩部(肩2加工有夹持平台，也即切口段)；Use an open-end wrench to clamp the sleeve shoulder on the inner side of the workpiece (shoulder 2 is processed with a clamping platform, that is, the notch section);
将扭矩扳手固定在螺杆1螺帽上，施拧螺帽，直至达到建议扭矩值，或紧固难以持续为止，安装完成。Fix the torque wrench on the nut of screw 1, and tighten the nut until the recommended torque value is reached, or until the tightening is difficult to continue, the installation is complete.
以上所述，仅为本实用新型较佳的具体实施方式，但本实用新型的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本实用新型披露的技术范围内，可轻易想到的变化或替换，都应涵盖在本实用新型的保护范围之内。因此，本实用新型的保护范围应该以权利要求书的保护范围为准。The above is only a preferred embodiment of the utility model, but the scope of protection of the utility model is not limited thereto, and any person familiar with the technical field can easily think of All changes or replacements should fall within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be based on the protection scope of the claims.
Claims (6)
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| Application Number | Priority Date | Filing Date | Title |
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| CN201621186560.1U CN206159225U (en) | 2016-11-04 | 2016-11-04 | Rotatory fastening bolt of unilateral |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201621186560.1U CN206159225U (en) | 2016-11-04 | 2016-11-04 | Rotatory fastening bolt of unilateral |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108571510A (en) * | 2018-06-28 | 2018-09-25 | 同济大学 | A kind of convertible unilateral bolt fastener |
| CN111927857A (en) * | 2019-05-13 | 2020-11-13 | 中冶建筑研究总院有限公司 | Unilateral fastening bolt |
-
2016
- 2016-11-04 CN CN201621186560.1U patent/CN206159225U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108571510A (en) * | 2018-06-28 | 2018-09-25 | 同济大学 | A kind of convertible unilateral bolt fastener |
| CN111927857A (en) * | 2019-05-13 | 2020-11-13 | 中冶建筑研究总院有限公司 | Unilateral fastening bolt |
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