Anti-rotation locking quick-change structure for automobile pipeline joint and energy storage pipeline joint

Abstract

The invention discloses an anti-rotation locking quick-change structure for an automobile pipeline connector and an energy storage pipeline connector, and particularly relates to the technical field of automobile pipelines, the anti-rotation locking quick-change structure comprises a pipeline connector and a quick-change body which are installed on a quick-change tool, the quick-change body is arranged on one side of the pipeline connector, and fixing plates are fixedly connected to the two sides of the quick-change body; and one side of the fixing plate is fixedly connected with a fixing shaft. Through a double fixing mechanism, axial and circumferential bidirectional constraint is formed, radial extrusion of the fixed cam is matched with vertical geometric interference of the locking block, rapid locking is formed, the problem that traditional single locking is prone to loosening is thoroughly solved, the anti-rotation reinforcing effect is improved, the situation that when a connector mold is inserted and pulled, a wrench tilts due to pulling force is effectively avoided, and the locking effect is improved. The anti-rotation locking effect is improved, more time and labor are saved when the automobile pipeline and the connector are replaced and inserted into different tools for assembly, and the assembly efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile pipeline, more particularly, the present application relates to a fast-changing structure for preventing rotation and locking of automobile pipeline joint and energy storage pipeline joint. BACKGROUND

[0002] In the field of automobile manufacturing, the reliability and assembly efficiency of pipeline connection are always the key factors affecting the overall production progress and equipment stability. There are many types of automobile pipeline joints, and the assembly angle needs to adapt to the pipeline angle, so different joint molds need to be replaced. The energy storage pipeline plays an important role in energy transmission and medium flow. The insertion assembly of the energy storage pipeline has high standards for the sealing performance and anti-looseness of the connection.

[0003] When assembling the automobile pipeline joint and the energy storage pipeline joint, the connection method is mostly threaded connection or buckle structure. During assembly, repeated twisting, precise alignment and other operations are required. Not only is the process complicated, but the assembly efficiency is low. Some fast-changing structures ignore the anti-rotation function, and the assembly fixing effect is poor. Or the anti-rotation structure is complex and inconvenient to operate, making it difficult to be widely applied in actual production and maintenance. When the pipeline joint is connected using a quick-change joint, there is a lack of circumferential constraint, and stable bidirectional constraint cannot be formed. Only single constraint in the radial or axial direction is achieved, which affects the locking effect. SUMMARY

[0004] In order to overcome the above-mentioned defects of the prior art, the present application provides a fast-changing structure for preventing rotation and locking of automobile pipeline joint and energy storage pipeline joint to solve the problems raised in the background art.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a fast-changing structure for preventing rotation and locking of automobile pipeline joint and energy storage pipeline joint, comprising a quick-change tool and a quick-change body, the quick-change body is arranged on one side of the pipeline joint, the quick-change body is fixedly connected with a fixed plate on both sides, the fixed plate is fixedly connected with a fixed shaft on one side, the fixed shaft is rotatably sleeved with a fixed cam, and the fixed cam is fixedly connected with a wrench at one end.

[0006] The quick-change tool is fixedly connected with a positioning pin on one side, the circumferential surface of the positioning pin is provided with an annular groove, the surface of the quick-change body is provided with a positioning pin hole on one side, and the top surface and the bottom surface of the quick-change body are both provided with a through recess.

[0007] Preferably, the fixed cam is an eccentric cam. When the fixed cam is rotated to the locking position, the working surface of the fixed cam is pressed against the groove wall of the annular groove to achieve locking. When the fixed cam is rotated to the release position, the working surface of the fixed cam is separated from the groove wall of the annular groove or has a gap therefrom to achieve release.

[0008] Preferably, the thickness of the fixed cam is smaller than the size of the through groove in the thickness direction of the fixed cam, so that the fixed cam can rotate in the through groove.

[0009] Preferably, the opening position of the annular groove in the axial direction of the positioning pin is arranged to be opposite to the through groove when the positioning pin is inserted into the positioning pin hole to position, so that the fixed cam is embedded and pressed when rotating to the locking position.

[0010] Preferably, the rotation axis of the wrench coincides with the axis of the fixed shaft.

[0011] Preferably, the positioning pin hole is in clearance fit or transition fit with the positioning pin.

[0012] Preferably, the extension direction of the through groove is perpendicular to the direction of the positioning pin inserted into the positioning pin hole.

[0013] Technical effects and advantages of the present application:

[0014] 1. Through the cooperative design of positioning fit and eccentric cam locking, the structure realizes locking and release by rotating the fixed cam with the wrench, without the need for additional tools to complete the connection and separation of the pipe joint and the quick-change tool. Compared with the traditional threaded connection or buckle structure, the cumbersome steps such as twisting and positioning are reduced, the installation and disassembly time is greatly shortened, it is suitable for scenes with high efficiency requirements, the fixed cam adopts an eccentric structure, the working surface is tightly pressed against the annular groove wall of the positioning pin when locked, the positioning pin and the positioning pin hole are tightly fitted through radial pressure, the problem of easy loosening of traditional single locking is completely solved, the anti-rotation reinforcement effect is improved, the phenomenon of mold disengagement caused by the wrench being pulled up when the joint mold is inserted and pulled out is effectively avoided, the anti-rotation locking effect is improved, and the replacement of automobile pipelines and joint insertion assembly is more time-saving and labor-saving when switching different tools, improving the assembly efficiency.

[0015] 2. Through the clearance fit or transition fit of the positioning pin and the positioning pin hole, and the precise positioning design of the annular groove and the through groove, accurate butt joint can be realized without repeated adjustment during installation, even non-professionals can quickly complete the operation, reducing the dependence on the skill level of the operator, and reducing the wear of the parts caused by positioning deviation. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0017] Figure 2 It is a schematic diagram of the side view structure of the present application.

[0018] Figure 3 It is a schematic diagram of the front view structure of the quick-change body of the present application.

[0019] Figure 4 This is a schematic diagram of the connection between the quick-change tooling and the positioning pin of the present invention.

[0020] Figure 5 This is a schematic diagram of the quick-change body of the present invention.

[0021] Figure 6 For the present invention Figure 5 Side view structural diagram.

[0022] The attached figures are labeled as follows: 1. Quick-change tooling; 2. Quick-change body; 3. Through groove; 4. Fixing plate; 5. Fixing shaft; 6. Fixing cam; 7. Wrench; 8. Locating pin; 9. Annular groove; 10. Locating pin hole. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] As attached Figures 1-6 The diagram shows an anti-rotation locking quick-change structure for automotive pipeline connectors and energy storage pipeline connectors, including a quick-change fixture 1 and a quick-change body 2. The quick-change body 2 is disposed on one side of the quick-change fixture 1. Fixing plates 4 are fixedly connected to both sides of the quick-change body 2. A fixing shaft 5 is fixedly connected to one side of the fixing plate 4. A fixing cam 6 is rotatably sleeved on the fixing shaft 5. A wrench 7 is fixedly connected to one end of the fixing cam 6.

[0025] The quick-change tooling 1 is fixedly connected to a positioning pin 8 on one side. The positioning pin 8 has an annular groove 9 on its circumferential surface. The quick-change body 2 has a positioning pin hole 10 on one side surface. The quick-change body 2 has through grooves 3 on both the top and bottom surfaces.

[0026] As attached Figure 3 As shown, the fixed cam 6 is an eccentric cam. When the fixed cam 6 rotates to the locking position, its working surface presses against the groove wall of the annular groove 9 to achieve locking. When the fixed cam 6 rotates to the release position, its working surface disengages from the groove wall of the annular groove 9 or has a gap with it to achieve release. The fixed cam 6 with its eccentric design can achieve fast locking and release by rotation, providing controllable clamping force for the connection between the positioning pin 8 and the quick-change body 2.

[0027] As attached Figure 3As shown, the thickness of the fixed cam 6 is smaller than the size of the through groove 3 in the thickness direction of the fixed cam 6, so that the fixed cam 6 can rotate in the through groove 3, and the size design ensures that the fixed cam 6 does not interfere when rotating in the through groove 3, and provides space protection for the smooth operation of the wrench 7 driving the fixed cam 6.

[0028] As shown in the accompanying drawings Figure 3 , 4 As shown, the opening position of the annular groove 9 along the axis of the positioning pin 8 is arranged to be opposite to the through groove 3 when the positioning pin 8 is inserted into the positioning pin hole 10, so that the fixed cam 6 can be embedded and pressed when rotating to the locking position, and this position setting ensures that the fixed cam 6 is accurately matched with the annular groove 9, and provides an accurate action point for the locking of the positioning pin 8 and the quick-change body 2.

[0029] As shown in the accompanying drawings Figure 1 , 2 , 3, 5, 6, the rotation axis of the wrench 7 coincides with the axis of the fixed shaft 5, and the coaxial design ensures that the acting force of the wrench 7 can be stably transmitted to the fixed cam 6, avoiding deviation or jamming during rotation, and improving the stability of operation.

[0030] As shown in the accompanying drawings Figure 3 , 4 , 6, the positioning pin hole 10 and the positioning pin 8 are gap fit or transition fit, which not only ensures that the positioning pin 8 can be smoothly inserted into the positioning pin hole 10, but also reduces the shaking between the two, providing a reliable preliminary positioning basis for subsequent locking.

[0031] As shown in the accompanying drawings Figure 3 , the extension direction of the through groove 3 is perpendicular to the direction of the positioning pin 8 inserted into the positioning pin hole 10, so that the pressing force of the fixed cam 6 on the annular groove 9 is perpendicular to the insertion direction of the positioning pin 8, and the anti-pulling-off ability during locking is enhanced.

[0032] The working principle of the present application is: through the cooperative action of positioning fit and eccentric cam locking, the quick installation, locking and disassembly of the pipeline joint are realized. When the quick-change tool 1 needs to be connected with the quick-change body 2 installed on the equipment during installation, first, the quick-change body 2 is moved close to the quick-change tool 1, the positioning pin 8 on the quick-change tool 1 is aligned with the positioning pin hole 10 on the quick-change body 2, and is pushed in the insertion direction. Since the positioning pin hole 10 and the positioning pin 8 are gap fit or transition fit, the positioning pin 8 can be smoothly inserted into the positioning pin hole 10, achieving preliminary positioning and avoiding deviation during installation. When the positioning pin 8 is inserted into position, the annular groove 9 on the positioning pin 8 is just opposite to the through groove 3 at the top and bottom of the quick-change body 2, providing a position basis for subsequent locking action.

[0033] After positioning, by rotating the wrench 7, since the rotation axis of the wrench 7 coincides with the axis of the fixed shaft 5, and since the thickness of the fixed cam 6 is smaller than the size of the through groove 3 in the thickness direction, the rotation space is ensured, the fixed cam 6 is driven to rotate around the fixed shaft 5 in the through groove 3, since the fixed cam 6 is an eccentric cam, when rotating to the locking position, the working surface of the fixed cam 6 gradually approaches and presses the annular groove 9 groove wall of the positioning pin 8, the radial pressure generated by the eccentric structure makes the positioning pin 8 tightly fit with the positioning pin hole 10, realizes the anti-skid reinforcement of the pipeline joint 2 and the quick-change tool 1, realizes the anti-rotation locking effect, realizes the effect of quickly replacing different tools;

[0034] When it is necessary to disassemble, the wrench 7 is reversely rotated, the fixed cam 6 is reversely rotated around the fixed shaft 5, with the rotation of the fixed cam 6 to the release position, the eccentric cam working surface gradually leaves the groove wall of the annular groove 9 or forms a gap, the radial pressure on the positioning pin 8 is released, at this time, the positioning pin 8 can be smoothly pulled out of the positioning pin hole 10, the quick-change body 2 and the quick-change tool 1 are separated, and the quick disassembly of the pipeline joint 2 is realized.

[0035] Finally, it should be pointed out that: first, in the description of the present application, it should be pointed out that, unless otherwise specified and limited, the terms "installation", "connection", "connection" should be understood broadly, which can be mechanical connection or electrical connection, or the communication between two elements, or direct connection, "up", "down", "left", "right" and the like are only used to indicate the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may change;

[0036] Secondly: the structure involved in the disclosed embodiment of the present application is only involved in the disclosed embodiment of the present application, other structures can refer to the usual design, under the condition of no conflict, the same embodiment and different embodiments of the present application can be combined with each other;

[0037] Finally: the above only describes the preferred embodiments of the present application, and is not used to limit the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A rotation-preventing locking quick-change structure for automobile pipe joints and energy storage pipe joints, comprising a quick-change tool (1) and a quick-change body (2), characterized in that: The quick-change body (2) is arranged on one side of the pipeline joint (2), both sides of the quick-change body (2) are fixedly connected with the fixed plates (4), one side of the fixed plate (4) is fixedly connected with the fixed shaft (5), the fixed shaft (5) is rotatably sleeved with the fixed cam (6), one end of the fixed cam (6) is fixedly connected with the wrench (7). The quick-change tool (1) is fixedly connected with the positioning pin (8) on one side, the circumferential surface of the positioning pin (8) is provided with the annular groove (9), and the surface of the quick-change body (2) is provided with the positioning pin hole (10) on one side.

2. The anti-rotation locking quick change structure for automobile pipe joints and energy storage pipe joints according to claim 1, characterized in that: The fixed cam (6) is an eccentric cam.

3. The anti-rotation locking quick change structure for automobile pipe joints and energy storage pipe joints according to claim 1, characterized in that: The thickness of the fixed cam (6) is smaller than the size of the through groove (3) in the thickness direction of the fixed cam (6).

4. The anti-rotation locking quick change structure for automobile pipe joints and energy storage pipe joints according to claim 1, characterized in that: The annular groove (9) is arranged on the axial direction of the positioning pin (8), and when the positioning pin (8) is inserted into the positioning pin hole (10), the annular groove (9) is opposite to the through groove (3), so that the fixed cam (6) is embedded and pressed when rotating to the locking position.

5. The anti-rotation locking quick change structure for automobile pipe joints and energy storage pipe joints according to claim 1, characterized in that: The rotation axis of the wrench (7) coincides with the axis of the fixed shaft (5).

6. The anti-rotation locking quick change structure for automobile pipe joints and energy storage pipe joints according to claim 1, characterized in that: The positioning pin hole (10) is gap-fitted or transition-fitted with the positioning pin (8).

7. The anti-rotation locking quick change structure for automobile pipe joints and energy storage pipe joints according to claim 1, characterized in that: The extension direction of the through groove (3) is perpendicular to the direction of the positioning pin (8) inserted into the positioning pin hole (10).

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