阅读说明：本技术 快速装配型工具杆体连接结构 (Quick assembly type tool rod body connecting structure ) 是由 付长智 付晓琳 李春 于 2021-07-30 设计创作，主要内容包括：一种快速装配型工具杆体连接结构,包括外套管、内套管、加强限位组件和紧固套；所述内套管套装在外套管内部,内套管与紧固套之间设置实现加强连接限位作用的加强限位组件,紧固套与所述外套管螺纹连接。这种连接结构适用于工具杆与工具头部、工具杆与工具杆之间的快速连接安装,杆体部件之间通过简单的螺纹旋拧实现连接并完成组装,操作简单,方便快捷,在实现快速拆装的前提下,加装金属管等加强件,保证连接部为的强度和稳定性。(A quick assembly type tool rod body connecting structure comprises an outer sleeve, an inner sleeve, a reinforcing and limiting assembly and a fastening sleeve; the inner sleeve is sleeved inside the outer sleeve, a reinforcing and limiting assembly for realizing the reinforcing and connecting limiting effect is arranged between the inner sleeve and the fastening sleeve, and the fastening sleeve is in threaded connection with the outer sleeve. This kind of connection structure is applicable to the quick connection installation between instrument pole and instrument head, instrument pole and the instrument pole, revolves to twist through simple screw between the body of rod part and realizes connecting and accomplish the equipment, easy operation, convenient and fast under the prerequisite of realizing quick assembly disassembly, installs reinforcement such as tubular metal resonator additional, guarantees intensity and stability that connecting portion do.)

1. A quick assembly type tool rod body connecting structure is characterized by comprising an outer sleeve, an inner sleeve, a reinforcing and limiting assembly and a fastening sleeve; the inner sleeve is sleeved inside the outer sleeve, a reinforcing and limiting assembly for realizing the reinforcing and connecting limiting effect is arranged between the inner sleeve and the fastening sleeve, and the fastening sleeve is in threaded connection with the outer sleeve.

2. The quick-fit tool shank attachment structure of claim 1, wherein the attachment structure is for a shank to be connected to a tool head; the outer surface of the outer sleeve is of a conical structure matched with the connecting trousers of the tool head.

3. The quick-assembly tool shank connection structure of claim 2, wherein the reinforcement and position-limiting member comprises a metal tube, a fiber tube, a position-limiting sleeve and a positioning pin;

one end of the metal tube is sleeved in the inner sleeve, and the fiber tube is sleeved outside the other end of the metal tube; the limiting sleeve is sleeved outside the fiber tube and is positioned and connected by a positioning pin; the limiting sleeve is matched with the fastening sleeve for use, so that axial positioning is realized; the fiber tube with the limiting sleeve is inserted into the fastening sleeve, the inner sleeve tube internally provided with the metal tube is inserted into the outer sleeve tube, and the connector of the outer sleeve tube is in threaded connection with the fastening sleeve.

4. The tool bar connecting structure of claim 3, wherein the inner sleeve has teeth on its outer wall for positioning and the outer sleeve has teeth on its inner wall for circumferential positioning.

5. The quick-assembly tool rod connecting structure according to claim 3, wherein the positioning pin comprises two pin bodies, and the two pin bodies are arranged in a cross shape to fix the metal tube, the fiber tube and the limiting sleeve.

6. The quick-fit tool shank attachment structure of claim 1, wherein the attachment structure is for shank-to-shank attachment; the device also comprises a connecting pipe; the free ends of the outer sleeve and the connecting pipe are cylindrical pipe bodies.

7. The quick-assembly tool shank coupling structure of claim 6, wherein the reinforcement and limiting member comprises a metal tube, a connecting tube; one end of the metal tube is sleeved outside the inner sleeve; an inner sleeve pipe sleeved with a metal pipe outside is inserted into the outer sleeve pipe; the other end of the metal pipe is inserted into the connecting pipe; the connecting pipe with the metal pipe inside is inserted into the fastening sleeve, and the connecting head at the end part of the outer sleeve pipe is connected with the fastening sleeve in a threaded manner.

8. The tool bar connecting structure of claim 7, wherein a stop collar is disposed at one end of the connecting tube, and the stop collar cooperates with the fastening sleeve to achieve axial positioning.

9. The quick-assembly tool rod connecting structure according to claim 7, wherein one end of the inner sleeve is a tapered tube, and teeth matched with the inner wall of the outer sleeve are arranged on the outer wall of the inner sleeve to realize circumferential positioning; the other end of the inner sleeve is a hollow cylindrical pipe, and the metal pipe is sleeved outside the cylindrical pipe section.

10. The quick-fit tool shank coupling structure of claim 9, wherein the tapered tube has an outer diameter greater than an outer diameter of the cylindrical tube, the junction of which forms a table; the end surface of the metal tube is tightly attached to the table top.

11. The tool shaft-connecting structure of the quick-assembly type as claimed in any one of claims 1 to 10, wherein the reinforcing and position-limiting member is formed as an integral member which is assembled with the outer sleeve and the fastening sleeve after being inserted and connected.

Technical Field

The invention relates to a rod body connecting structure, in particular to a quick assembly type tool rod body connecting structure suitable for a hand tool.

Background

At present, the rod body connecting modes of the hand tool are various, in order to facilitate storage and transportation, the telescopic or detachable and assemblable rod body is more and more popular with consumers, and the tool rod body occupies small area and is convenient to assemble and replace.

However, in order to ensure the stability and the use strength of a plurality of tool rods, most of the rod bodies are connected and fixed by additional connecting pieces such as bolts, and in the assembling process, screwing the additional connecting pieces such as the bolts also requires the user to operate on the spot, if the user is a woman or a person with small strength, the connecting mode still cannot achieve the purposes of quick installation, simple assembly and the like, and the operation sequence of loosening the fastening sleeve and loosening the rod bodies is often confused to damage the connecting pieces when the tool rods are disassembled and assembled, so that the assembling and the use of the tool are affected. Therefore, the connecting structure can realize the assembly of the rod body without additional connecting pieces, and becomes a new scheme which is always researched and explored by tool manufacturers.

Disclosure of Invention

The present invention is directed to the technical drawbacks mentioned in the background art, and provides a quick-assembly tool rod body connection structure that can realize quick assembly of a tool rod body by simple screw-tightening.

The technical scheme adopted by the invention is as follows: a quick assembly type tool rod body connecting structure comprises an outer sleeve, an inner sleeve, a reinforcing and limiting assembly and a fastening sleeve; the inner sleeve is sleeved inside the outer sleeve, a reinforcing and limiting assembly for realizing the reinforcing and connecting limiting effect is arranged between the inner sleeve and the fastening sleeve, and the fastening sleeve is in threaded connection with the outer sleeve.

As a preferred technical scheme: the connecting structure is used for connecting the rod body with the tool head; the outer surface of the outer sleeve is of a conical structure matched with the connecting trousers of the tool head.

The reinforcing and limiting assembly comprises a metal pipe, a fiber pipe, a limiting sleeve and a positioning pin;

one end of the metal tube is sleeved in the inner sleeve, and the fiber tube is sleeved outside the other end of the metal tube; the limiting sleeve is sleeved outside the fiber tube and is positioned and connected by a positioning pin; the limiting sleeve is matched with the fastening sleeve for use, so that axial positioning is realized; the fiber tube with the limiting sleeve is inserted into the fastening sleeve, the inner sleeve tube internally provided with the metal tube is inserted into the outer sleeve tube, and the connector of the outer sleeve tube is in threaded connection with the fastening sleeve.

The outer wall of the inner sleeve is provided with teeth for positioning, and the inner wall of the outer sleeve is provided with teeth matched with the inner wall of the outer sleeve, so that circumferential positioning is realized.

The locating pin comprises two pin bodies which are arranged in a cross shape, and the metal pipe, the fiber pipe and the limiting sleeve are fixed.

As a preferred technical scheme: the connecting structure is used for connecting the rod body with the rod body; the device also comprises a connecting pipe; the free ends of the outer sleeve and the connecting pipe are cylindrical pipe bodies.

The reinforcing and limiting assembly comprises a metal pipe and a connecting pipe; one end of the metal tube is sleeved outside the inner sleeve; an inner sleeve pipe sleeved with a metal pipe outside is inserted into the outer sleeve pipe; the other end of the metal pipe is inserted into the connecting pipe; the connecting pipe with the metal pipe inside is inserted into the fastening sleeve, and the connecting head at the end part of the outer sleeve pipe is connected with the fastening sleeve in a threaded manner.

One end of the connecting pipe is provided with a limiting sleeve, and the limiting sleeve is matched with the fastening sleeve for use, so that axial positioning is realized.

One end of the inner sleeve is a conical tube, and teeth matched with the inner wall of the outer sleeve are arranged on the outer wall of the inner sleeve to realize circumferential positioning; the other end of the inner sleeve is a hollow cylindrical pipe, and the metal pipe is sleeved outside the cylindrical pipe section.

The outer diameter of the conical tube is larger than that of the cylindrical tube, and a table top is formed at the joint of the conical tube and the cylindrical tube; the end surface of the metal tube is tightly attached to the table top.

As a preferred technical scheme: the reinforcing and limiting component is processed into an integral part, and the integral part is assembled into a whole after being connected with the outer sleeve and the fastening sleeve in an inserting way.

Compared with the prior art, the connecting structure disclosed by the invention is suitable for quick connection and installation between the tool rod and the tool head and between the tool rod and the tool rod, the rod body parts are connected and assembled through simple thread screwing, the operation is simple, the connecting structure is convenient and quick, and on the premise of realizing quick disassembly and assembly, the reinforcing parts such as metal pipes are additionally arranged, so that the strength and the stability of the connecting part are ensured.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment of the present invention.

Fig. 2 is an assembled schematic view of a connection structure according to a first embodiment of the invention.

FIG. 3 is a schematic view of the inner sleeve structure according to the first embodiment.

Fig. 4 is a schematic structural view of the first plug according to the first embodiment.

Fig. 5 is a schematic structural view of a second plug in the first embodiment.

FIG. 6 is a schematic structural diagram of an outer sleeve according to an embodiment.

FIG. 7 is a schematic diagram of a connecting tube according to an embodiment.

FIG. 8 is a schematic view of a fastening sleeve according to an embodiment.

Fig. 9 is a schematic structural diagram of a second embodiment of the present invention.

Fig. 10 is an assembled schematic view of a connection structure according to a second embodiment of the invention.

FIG. 11 is a schematic diagram of an inner sleeve structure according to a second embodiment.

Fig. 12 is a schematic structural view of an outer sleeve according to a second embodiment.

Fig. 13 is a schematic structural view of a stop collar in the second embodiment.

FIG. 14 is a schematic view of a fiber tube structure according to a second embodiment.

FIG. 15 is a schematic view of a fastener sleeve according to a second embodiment of the present invention.

In the figure: the structure comprises an outer sleeve 1, a connector 2, a metal pipe 3, a limiting sleeve 4, a fastening sleeve 5, a fiber pipe 6, a positioning pin 7, an inner sleeve 8, a first plug 9 and a second plug 10.

Detailed Description

The invention is further illustrated with reference to the following figures and examples.

Referring to fig. 1-15, the connection structure disclosed in the present invention is suitable for quick assembly connection between a tool shaft and a tool head, and between the tool shaft and the tool shaft in a hand tool. The device specifically comprises an outer sleeve 1, an inner sleeve 8, a reinforcing and limiting assembly and a fastening sleeve 5. The interior sleeve pipe suit is inside the outer tube, sets up between interior sleeve pipe and the adapter sleeve and realizes strengthening the spacing subassembly of enhancement of being connected limiting displacement, the adapter sleeve with outer tube threaded connection. The reinforcing and limiting component is processed into an integral part, and the integral part is assembled into a whole after being connected with the outer sleeve and the fastening sleeve in an inserting way.

The technical scheme disclosed by the invention is detailed by specific examples.

Example one

The connecting structure is used for connecting the rod body and the rod body, the structure further comprises a connecting pipe 11, the free ends of the outer sleeve 1 and the connecting pipe 11 are cylindrical pipe bodies, the length of the part of the pipe bodies is adjusted according to actual needs to match tools with different length requirements, and the rod body are also connected through the connecting structure. As shown in fig. 2, the adjacent two rods are connected through the connecting structure, the outer parts of the connecting pipe and the outer sleeve are arranged according to the length requirement of the actual tool rod body, or the tool rod body is connected outside the connecting pipe through gluing or injection molding, and the specific structure is shown in fig. 1-8.

In this embodiment, the reinforcing and limiting assembly comprises a metal pipe 3 and a connecting pipe 11. One end of the metal tube 3 is sleeved outside the inner sleeve 8; an inner sleeve 8 which is externally sleeved with a metal pipe is inserted into the outer sleeve 1. The other end of the metal pipe is inserted into the connecting pipe 11; the connecting pipe 11 with the metal pipe 3 inside is inserted into the fastening sleeve 5, and the connector 2 at the end part of the outer sleeve 1 is in threaded connection with the fastening sleeve 5.

Preferably, the connection pipe 11 has a stop collar 4 at one end thereof, and the stop collar and the connection pipe may be formed integrally by injection molding or may be formed separately by connecting the stop collar and the connection pipe by a connector. Stop collar 4 uses with the adapter sleeve cooperation, and the tip of adapter sleeve is provided with an annular end face, plays limiting displacement to stop collar 4, realizes axial positioning.

As another preferred embodiment, one end of the inner sleeve is a conical tube, teeth matched with the inner wall of the outer sleeve are arranged on the outer wall of the inner sleeve to realize circumferential positioning, and the other end of the inner sleeve is a hollow cylindrical tube. The other end of the inner sleeve is a hollow cylindrical tube, and the metal tube is sleeved outside the cylindrical tube. Preferably, the outer diameter of the conical tube is larger than that of the cylindrical tube, and a table top is formed at the joint of the conical tube and the cylindrical tube; the end surface of the metal tube is tightly attached to the table-board.

As a preferred embodiment, the metal tube and the inner sleeve are fixed by gluing or injection molding; the metal pipe and the connecting pipe are fixed by gluing or injection molding.

Example two

The connecting structure is used for connecting the rod body with the tool head. The outer surface of the outer sleeve is of a conical structure matching the connecting pants of the tool head, see fig. 9-15.

In this embodiment, the reinforcing and position-limiting assembly includes a metal tube 3, a fiber tube 6, a position-limiting sleeve 4, and a positioning pin 7. The metal 3 tube is a hollow cylindrical tube, one end of the metal 3 tube is sleeved in the inner sleeve 8, and the other end of the metal 3 tube is sleeved with the fiber tube 6; the limiting sleeve is sleeved outside the fiber tube and is positioned and connected by a positioning pin. In the embodiment, the fiber tube and the limiting sleeve are of a split structure, and preferably, the outer wall of the fiber tube and the inner wall of the limiting sleeve are provided with limiting teeth which are matched with each other; the two can also be injection molded integral structures. Stop collar 4 uses with the cooperation of adapter sleeve 5, and the tip of adapter sleeve is provided with an annular terminal surface, plays limiting displacement to stop collar 4, realizes axial positioning. The length of the limiting rod can be changed according to actual use conditions, and the requirements of rod bodies with different lengths are met. The fiber tube 6 with the limiting sleeve 4 is inserted into the fastening sleeve 5, the inner sleeve 8 with the metal tube 3 is inserted into the outer sleeve 1, and the connector 2 of the outer sleeve is in threaded connection with the fastening sleeve 5.

Preferably, the metal tube 3 and the inner sleeve 8 are fixed by gluing; the outer sleeve 1 and the connecting trousers of the tool head are fixed by gluing or injection molding. Or the outer sleeve and the connecting trousers at the head part of the tool are fixed by bolts, the inner wall of the end part of the outer sleeve is provided with an inner hole with screw threads, the position of the connecting trousers is provided with a protruding stud, and the outer sleeve and the connecting trousers are screwed and fixed by the screw threads.

Preferably, the outer wall of the inner sleeve is provided with teeth for positioning, and the inner wall of the outer sleeve is provided with teeth matched with the teeth, so that circumferential positioning is realized. The teeth may be distributed throughout the outer wall of the inner sleeve, or the teeth may be disposed only on the outer wall of the inner sleeve 1/2-1/3.

As another preferable scheme, the positioning pin 7 comprises two pin bodies, and the two pin bodies are arranged in a cross shape to fix the metal tube, the fiber tube and the limiting sleeve.

The tool head and the tool rod, the tool rod and the tool rod are fixedly connected together through the reinforcing component, and the rod body is independently placed; when needing to use, the free end of the adjacent body of rod is regarded as respectively to outer tube and connecting pipe, links together through strengthening spacing subassembly, realizes the fast assembly of the instrument body of rod and connects. Or, according to the actual length of the rod body, the rod body with the specific length is directly fixedly connected with the outer wall of the outer sleeve or the connecting pipe, and the method is realized by gluing or injection molding.