Automobile pipeline clamping mechanism and air tightness detection fixing device

Abstract

The utility model belongs to the technical field of pipeline air tightness detection, and particularly discloses an automobile pipeline clamping mechanism and an air tightness detection fixing device.The clamping mechanism comprises a mounting plate, a first pipe column, a fixing pipe, a clamping jaw and a fastening ring; wherein the first pipe column, the fixing pipe and the fastening ring are concentrically arranged from inside to outside; clamping jaws are fixed to the periphery of the tail end of the fixing pipe. The air tightness detection fixing device comprises a detection platform and a fixing mechanism, and further comprises the clamping mechanism. The fixing mechanism and the clamping mechanism are both fixed on the detection platform, and a mounting plate in the clamping mechanism is vertically fixed on the detection platform; the fixing mechanism is connected with the clamping mechanism through a detected pipeline, and a connector clamped with the fixing mechanism is arranged at the tail end of one end, connected with the fixing mechanism, of the detected pipeline. The device is simple in structure, easy to assemble and disassemble and low in cost; the pipeline fixing tightness degree can be flexibly adjusted, the flexibility is high, automobile pipelines can be rapidly fixed, and the working efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline air tightness detection, in particular to an automobile pipeline clamping mechanism and an air tightness detection fixing device. Background Art

[0002] Automobile pipes are important components of various automobile systems, such as cooling systems, fuel systems, and braking systems. They are mainly responsible for transmitting liquids, gases, or fluids to ensure the normal operation of various parts of the automobile. They are necessary components to maintain the normal operation of the automobile. For the pipes in the automobile, the quality of the airtightness determines whether the entire automobile power system operates normally. Ensuring the airtightness of automobile pipes is one of the important considerations of the pipe system. Therefore, before assembling automobile pipes, it is usually necessary to use an airtightness detection device to perform airtightness detection on automobile pipes.

[0003] At present, various styles of automobile pipeline air tightness detection devices have appeared on the market, such as the air tightness detection device disclosed in the patent with publication number CN107253048A and name "Air tightness detection and pipe mouth retaining ring installation integrated tooling for automobile pipelines", which includes a base plate, on which a fixing mechanism for fixing the pipeline and an air tightness detection and retaining ring installation integrated mechanism cooperating with the pipe mouth are provided, the fixing mechanism includes a clamping mechanism for clamping the pipe body part close to the pipe mouth, and a pressing mechanism for pressing the fin plate arranged on the outside of the pipe body; the air tightness detection and retaining ring installation integrated mechanism includes a retaining ring installation mechanism for placing the retaining ring into the pipe mouth, an air tightness detection mechanism for sealing and ventilating the pipe mouth, and also includes a switching mechanism for switching the retaining ring installation mechanism and the air tightness detection mechanism relative to the pipe mouth; the switching mechanism includes a switching plate and a first driving part that drives the switching plate to move left and right relative to the pipe mouth. When the detection device in this patent is working, although it only needs to manually place the pipeline on the tooling to complete the steps of embedding and placing the retaining ring of the pipeline and testing the air tightness, various sensors and cylinders need to work together after the pipeline is manually placed to fix and tighten the pipeline, and its overall structure is complex. In addition, the existing detection device only needs to assemble sensors and cylinders in advance to fix and tighten the pipeline being tested, and it also needs to connect the sensors and cylinders to the external control device, and the control device needs to set the program to issue corresponding instructions after receiving the sensor signal. It can be seen that the existing air tightness detection device equipment has many process flows during manufacturing, which is time-consuming and has a high preparation cost.

[0004] Therefore, the art urgently needs to propose an automobile pipe clamping mechanism and an air tightness detection fixing device, so as to solve the problems in the prior art that the automobile pipe air tightness detection has a complex overall structure, multiple process flows during manufacturing, long time consumption, and high preparation cost. Utility Model Content

[0005] The utility model aims to provide an automobile pipe clamping mechanism, which has a simple structure, is easy to assemble and disassemble, and has a low cost; and can flexibly adjust the tightness of the pipe fixation, and has a high degree of flexibility.

[0006] The solution adopted to achieve the purpose of the utility model is: an automobile pipe clamping mechanism, including a mounting plate, a first pipe column, a fixed pipe, a claw and a fastening ring; wherein the first pipe column vertically penetrates the mounting plate, the fixed pipe is sleeved on the first pipe column, the fastening ring is sleeved on the fixed pipe, and the first pipe column, the fixed pipe and the fastening ring are concentrically arranged from the inside to the outside; the outer periphery of the end of the fixed pipe close to one end of the detected pipe is fixedly connected with more than two claws, and the tightening or opening of the claws is achieved by moving the fastening ring on the fixed pipe; the pipe wall of the detected pipe is embedded in the gap area between the first pipe column and the claw, and the end of the first pipe column that cooperates with the detected pipe is embedded in the inside of the detected pipe.

[0007] Furthermore, a through hole is provided at the center of the first pipe column, and a chamfer is provided at the end edge of the first pipe column that cooperates with the detected pipeline.

[0008] Furthermore, the fixing pipe comprises a fixing portion and an adjusting portion, wherein the fixing portion is fixedly connected to the mounting plate, and a fastening ring is sleeved on the outside of the adjusting portion.

[0009] Furthermore, the fastening ring is a ring-shaped structure with an internal thread, and the adjusting portion cooperating with the fastening ring is provided with an external thread; the outer surface of the fastening ring is also provided with more than one adjustment hole, and also includes an adjustment rod movably connected to the adjustment hole.

[0010] Furthermore, there are six adjustment holes, and the adjustment holes are evenly distributed around the outer circumference of the fastening ring; one end of the adjustment rod is embedded in any one of the adjustment holes and movably connected thereto.

[0011] Furthermore, a first limit assembly cooperating with the adjusting rod is fixed on the mounting plate, and the first limit assembly includes a limit rod penetrating the mounting plate and movably connected to the mounting plate, and a limit column and a triangular block respectively fixed at both ends of the limit rod; it also includes a coil spring concentrically sleeved on the outer periphery of the limit column; wherein the outer diameter of the limit column is larger than the outer diameter of the limit rod; the triangular block is located at one end close to the adjusting rod, and the inclined surface of the triangular block is upward, and the width of the triangular block along the central axis direction of the first pipe column covers the range of movement of the fastening ring on the fixed pipe.

[0012] Another purpose of the utility model is to provide an automobile pipeline air tightness detection and fixing device, which has a simple structure, is easy to assemble and disassemble, has a low cost, can realize rapid fixing of automobile pipelines, and has high working efficiency.

[0013] The solution adopted to achieve another purpose of the utility model is: a vehicle pipeline air tightness detection and fixing device, including a detection platform and a fixing mechanism, and also including the above-mentioned clamping mechanism; the fixing mechanism and the clamping mechanism are both fixed on the detection platform, wherein the mounting plate in the clamping mechanism is vertically fixed on the detection platform; the fixing mechanism and the clamping mechanism are connected through the detected pipeline, and the end of the detected pipeline connected to the fixing mechanism is provided with a connector that is clamped with the fixing mechanism.

[0014] Furthermore, the fixing mechanism includes a fixing seat, a second pipe column and a second limiting assembly, wherein the bottom of the fixing seat is fixed on the detection platform, the second pipe column passes through the fixing seat and is fixedly connected to the fixing seat; a through hole is opened in the center of the second pipe column, and the end edge of the second pipe column at one end that cooperates with the detected pipeline is chamfered; the second limiting assembly cooperates with the detected pipeline.

[0015] Furthermore, the fixed seat includes a connecting plate and a fixing plate, wherein the connecting plate is vertically fixed on the detection platform, and the lower end of the connecting plate is fixedly connected to the detection platform, and the upper end is fixedly connected to the fixing plate; the fixing plate is arranged at an angle, and forms a "V"-shaped fixing seat with the connecting plate as a whole, and the opening direction of the "V"-shaped fixing seat is towards the direction away from the clamping mechanism.

[0016] Furthermore, guide plates are respectively provided on both sides of the plate surface of the fixed plate close to the clamping mechanism, and guide grooves are provided on the surfaces of the guide plates. A bearing plate perpendicular to the fixed plate is fixedly connected at the junction of the fixed plate and the connecting plate; the second limiting assembly includes a cylinder and a clamping plate, the cylinder is fixed on the bearing plate, the end of the cylinder output shaft is fixedly connected to the clamping plate, and both sides of the clamping plate are embedded in the guide grooves; a clamping groove matching the connecting head is provided on the top of the clamping plate, and the shape of the clamping groove matches the shape of the connecting head.

[0017] The beneficial effects of the utility model are: the utility model has a simple structure, is easy to assemble and disassemble, and has a low cost; the tightness of the pipeline fixation can be flexibly adjusted, the flexibility is high, and the automobile pipeline can be quickly fixed, and the work efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the utility model will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work:

[0019] Figure 1 It is an overall structural schematic diagram of the automobile pipe clamping mechanism in the utility model.

[0020] Figure 2 It is a schematic diagram of the overall structure of the first limiting component in the utility model.

[0021] Figure 3 yes Figure 1 A schematic diagram of an overall structure without an adjustment rod.

[0022] Figure 4 It is a structural schematic diagram of the cooperation between the mounting plate of the utility model, the first pipe column and the fixed pipe.

[0023] Figure 5 The utility model is an overall structural diagram of the automobile pipeline air tightness detection and fixing device.

[0024] Figure 6 yes Figure 5 An enlarged schematic diagram of point A in the middle.

[0025] Figure 7 yes Figure 5 An enlarged schematic diagram of point B in the figure.

[0026] Figure 8 It is a structural schematic diagram of the cooperation between the fixing mechanism and the connector.

[0027] Fig. 9 yes Figure 7 Schematic diagram of a structure after removing the baffle.

[0028] Fig.10 It is a schematic diagram of the overall structure of the fixing mechanism in the utility model.

[0029] In the figure: clamping mechanism 1; adjusting hole 2; adjusting rod 3; first limit assembly 4; detection platform 5; fixing mechanism 6; connector 7; guide plate 8; guide groove 9; bearing plate 10; card slot 11; first boss 12; second boss 13; weight reduction hole 14; handle 15; baffle 16; detected pipeline 17;

[0030] Mounting plate 101; first pipe column 102; fixing pipe 103; claw 104; fastening ring 105;

[0031] Limit rod 401; limit column 402; triangular block 403; coil spring 404;

[0032] Fixed seat 601; second pipe column 602; second limit assembly 603;

[0033] Butt joint 701; transition portion 702; connection portion 703;

[0034] The fixing part 131; the adjusting part 132;

[0035] Connecting plate 611; fixing plate 612;

[0036] Cylinder 631; output shaft 632; clamping plate 633. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below. Obviously, the described embodiments are partial embodiments of the utility model, rather than all embodiments.

[0038] Example 1

[0039] like Figure 1 , Figure 2 , Figures 4 to 6 As shown, a vehicle pipe clamping mechanism comprises a mounting plate 101, a first pipe column 102, a fixed pipe 103, a clamping claw 104 and a fastening ring 105; wherein the first pipe column 102 vertically penetrates the mounting plate 101, the fixed pipe 103 is sleeved on the first pipe column 102, the fastening ring 105 is sleeved on the fixed pipe 103, and the first pipe column 102, the fixed pipe 103 and the fastening ring 105 are concentrically arranged from the inside to the outside; the outer periphery of the end of the fixed pipe 103 close to one end of the detected pipe 17 is fixedly connected with two or more clamping claws 104, and the clamping claws 104 are tightened or opened by moving the fastening ring 105 on the fixed pipe 103; the pipe wall of the detected pipe 17 is embedded in the gap area between the first pipe column 102 and the clamping claw 104, and the end of the first pipe column 102 that cooperates with the detected pipe 17 is embedded in the inside of the detected pipe 17.

[0040] The clamping mechanism 1 of the utility model can be applied to the existing air tightness detection device, and can be specifically used to clamp the end of the automobile pipeline when detecting the air tightness of the pipeline. The automobile pipeline of the utility model is a common automobile pipeline in the prior art, and the first pipe column 102 plays the role of clamping and positioning. In the actual design process, the outer surface of the first pipe column 102 can be directly fixedly connected with the mounting plate 101. At this time, the fixed pipe 103 does not need to penetrate the mounting plate 101. It is only necessary to fix the end of the fixed pipe 103 on the surface of the mounting seat or to fix the part of the fixed pipe 103 and the first pipe column 102. The first pipe column 102 can be fixedly connected to the fixed pipe 103 by threaded connection, clamping or welding, etc.; the first pipe column 102 can be connected to the mounting plate 101 by threaded connection, clamping or welding, etc. The above connection methods are all existing methods, which can be selected according to actual needs, and other suitable connection methods in the prior art can also be used. The utility model can also directly connect the fixing pipe 103 to the first pipe column 102 and then connect the fixing pipe 103 to the mounting plate 101 .

[0041] The fastening ring 105 of the utility model can partially wrap around the outer periphery of the claw 104 when moving along the direction of the claw 104. The claw 104 is used to further fasten the detected pipe 17. When the pipe wall of the detected pipe 17 is embedded in the gap area between the first pipe column 102 and the claw 104, and the end of the first pipe column 102 that matches the detected pipe 17 is embedded in the inside of the detected pipe 17, the claw 104 can be tightened or opened by moving the fastening pipe along the axial direction of the fixed pipe 103. Specifically, before placing the inspected pipe 17, the claws 104 are opened, the inspected pipe 17 is aligned with the first pipe column 102, and the first pipe is embedded in the inspected pipe 17. At this time, the pipe wall of the inspected pipe 17 is embedded in the gap area between the first pipe column 102 and the claws 104; then the fastening ring 105 is moved on the fixed pipe 103 along the direction where the inspected pipe 17 is located, so that the fastening ring 105 gradually gathers and tightens the claws 104. After the claws 104 are tightened, their inner walls squeeze the inspected pipe 17 to clamp the inspected pipe 17; when the inspected pipe 17 needs to be removed, the fastening ring 105 can be moved in a direction away from the inspected pipe 17. The clamping claw 104 in the present invention is an arc-shaped sheet structure, and the clamping claw 104 has a certain thickness, which can be an arc-shaped spring sheet. In actual setting, the number of the clamping claws 104 is four, all of which are surrounded by the edge of one end of the fixed tube 103 close to the detected pipe 17, and gaps are left between adjacent clamping claws 104; and all the clamping claws 104 are arranged in a trumpet shape as a whole, which can further ensure that the detected pipe 17 is smoothly embedded in the gap area between the first pipe column 102 and the clamping claws 104.

[0042] In the present invention, the fastening ring 105 and the fixed pipe 103 can be connected by threads, and when the fastening ring 105 is moved, it can be moved forward or backward just by rotating it on the fixed pipe 103. The above structure of the present invention is relatively simple, and the pipeline 17 to be tested can be quickly installed on the air tightness testing device without setting sensors and other driving devices, which is highly practical.

[0043] like Figure 1 , Figure 2 , Figures 4 to 6 As shown, a through hole is opened in the center of the first pipe column 102, and a chamfer is provided on the end edge of the first pipe column 102 that cooperates with the detected pipeline 17.

[0044] A through hole is provided in the center of the first pipe column 102 for air tightness detection. During the air tightness detection process, the first pipe column 102 cooperates with the corresponding air tightness detection device. The purpose of providing a chamfer at the end edge of the first pipe column 102 that cooperates with the tested pipe 17 is to facilitate the cooperation between the tested pipe 17 and the first pipe column 102. On the one hand, it plays a guiding role, facilitating the rapid cooperation of the tested pipe 17; on the other hand, it can also prevent the tested pipe 17 from being scratched by the first pipe column 102.

[0045] like Figure 1 , Figure 2 , Figures 4 to 6 As shown, the fixing tube 103 includes a fixing portion 131 and an adjusting portion 132, wherein the fixing portion 131 is fixedly connected to the mounting plate 101, and a fastening ring 105 is sleeved on the outside of the adjusting portion 132. The fixing portion 131 is used to be fixedly connected to the mounting plate 101 to improve the stability of the device, and the adjusting portion 132 cooperates with the fastening ring 105 to realize flexible adjustment of the position of the fastening ring 105.

[0046] like Figure 1 , Figure 2 , Figures 4 to 6 As shown, the fastening ring 105 is a ring structure with internal threads, and the adjusting portion 132 matched with the fastening ring 105 is provided with external threads; the outer surface of the fastening ring 105 is also provided with one or more adjustment holes 2, and also includes an adjustment rod 3 movably connected to the adjustment hole 2. The adjustment holes 2 can be densely arranged on the entire surface of the fastening ring 105, and the number can be more than one circle, and each circle is provided with about 6-12 holes.

[0047] The threaded connection between the fastening ring 105 and the adjustment part 132 can prevent the fastening ring 105 from sliding after adjustment, thereby improving the stability of the device. The adjusting rod 3 can be used when fastening the ring 105, which can save effort. The way in which the adjusting rod 3 is connected to the adjustment hole 2 can be clearance fit or threaded connection. When the adjusting rod 3 and the adjustment hole 2 are clearance fit, the adjusting rod 3 is only inserted into the adjustment hole 2 when the position of the fastening ring 105 needs to be adjusted, and the adjusting rod 3 can be rotated. After the adjustment is completed, the adjusting rod 3 is removed; when the adjusting rod 3 and the adjustment hole 2 are threadedly connected, the adjusting rod 3 can be directly fixed in the adjustment, and the adjusting rod 3 can be directly turned when the fastening ring 105 needs to be rotated.

[0048] like Figure 1 , Figure 2 , Figures 4 to 6 As shown, in one implementation of this embodiment, the number of the adjustment holes 2 is six, and the adjustment holes 2 are evenly distributed around the outer circumference of the fastening ring 105; one end of the adjustment rod 3 is embedded in any one of the adjustment holes 2 and movably connected thereto. When the above method is adopted, in order to facilitate adjustment, it is preferred to make the adjustment rod 3 and the adjustment hole 2 have a clearance fit. When the adjustment rod 3 is adjusted in one of the adjustment holes 2, if it is blocked by other parts after being rotated to a certain position, the adjustment rod 3 can be directly removed and inserted into another adjustment hole 2 that is convenient for adjustment.

[0049] like Figures 1 to 3 , Figure 5 and Figure 6As shown, in another implementation scheme of the present embodiment, a first limiting assembly 4 cooperating with the adjusting rod 3 is also fixed on the mounting plate 101, and the first limiting assembly 4 includes a limiting rod 401 that passes through the mounting plate 101 and is movably connected to the mounting plate 101, and a limiting column 402 and a triangular block 403 respectively fixed at both ends of the limiting rod 401; it also includes a coil spring 404 concentrically sleeved on the outer periphery of the limiting column 402; wherein the outer diameter of the limiting column 402 is greater than the outer diameter of the limiting rod 401; the triangular block 403 is located at one end close to the adjusting rod 3, and the inclined surface of the triangular block 403 is upward, and the width of the triangular block 403 along the central axis direction of the first pipe column 102 covers the range of movement of the fastening ring 105 on the fixed pipe 103.

[0050] The purpose of setting the first limiting component 4 in this embodiment is to facilitate the limiting of the adjusting rod 3, thereby preventing the fastening ring 105 from sliding. Specifically, in this embodiment, the number of adjusting holes 2 is six, and the adjusting holes 2 are evenly distributed around the outer circumference of the fastening ring 105; one end of the adjusting rod 3 is embedded in any one of the adjusting holes 2 and movably connected with it. When it is necessary to tighten, first insert the adjusting rod 3 into any one of the adjusting holes 2 and move the adjusting rod 3 so that the fastening ring 105 rotates to a suitable position to initially press the detected pipe 17, and then insert the adjusting rod 3 into the adjusting hole 2 close to the second limiting component 603, and move the adjusting rod 3 to the bottom of the limiting rod 401 to further press the detected pipe 17. At this time, the limiting rod 401 can block the adjusting rod 3 to prevent the adjusting rod 3 from moving up, thereby preventing the fastening ring 105 from sliding and causing the claw 104 to open.

[0051] In this embodiment, a through hole for the movement of the limiting rod 401 is provided on the mounting plate 101, the limiting rod 401 passes through the through hole, and a limiting column 402 is provided at the end away from the detected pipe 17, the diameter of the limiting column 402 is larger than the diameter of the through hole, so as to prevent the limiting rod 401 from falling out of the through hole. The inclined surface of the triangular block 403 can cooperate with the adjusting rod 3, when the adjusting rod 3 is moved to the position of the triangular block 403, the adjusting rod 3 contacts the inclined surface of the triangular block 403, and the adjusting rod 3 continues to slide down to press the triangular block 403, so that the triangular block 403 squeezes the limiting rod 401 and moves along the direction of the limiting column 402. The function of the coil spring 404 is to reset. When the limit rod 401 moves along the direction of the limit column 402, the spring is compressed. When the force applied to the triangular block 403 disappears, the compressed spring returns to its original state, pushing the triangular block 403 to move along the direction of the detected pipeline 17. However, the limit column 402 cannot move forward when it is against the surface of the mounting plate 101. The entire first limit assembly 4 is balanced in force and reset is completed.

[0052] Example 2

[0053] like Figures 1 to 10As shown, a vehicle pipeline air tightness detection and fixing device includes a detection platform 5 and a fixing mechanism 6, and also includes the above-mentioned clamping mechanism 1; the fixing mechanism 6 and the clamping mechanism 1 are both fixed on the detection platform 5, wherein the mounting plate 101 in the clamping mechanism 1 is vertically fixed on the detection platform 5; the fixing mechanism 6 is connected to the clamping mechanism 1 through the detected pipeline 17, and the end of the detected pipeline 17 connected to the fixing mechanism 6 is provided with a connector 7 that is clamped with the fixing mechanism 6.

[0054] The automobile pipeline air tightness detection device of this embodiment is mainly used to fix automobile pipelines. After the fixing is completed, the automobile pipeline is connected to the common air tightness detection mechanism in the prior art and then tested. In this embodiment, only the structure of the air tightness detection fixing device is described. The air pressure tester corresponding to the pipeline 17 to be tested is consistent with the prior art and has not been improved, so it is not described here. The connector 7 in this embodiment is a tubular structure as a whole, and the connector 7 includes a docking portion 701, a transition portion 702 and a connecting portion 703, and the outer diameters of the docking portion 701, the transition portion 702 and the connecting portion 703 decrease successively. In the above structure, a first boss 12 is formed between the docking portion 701 and the transition portion 702, and a second boss 13 is formed between the transition portion 702 and the connecting portion 703. Specifically, Figure 8 and Fig. 9 As shown. The first boss 12 is used to cooperate with the second limiting assembly 603 to prevent the tested pipe 17 from being separated from the second pipe column 602 during the air tightness test; the second boss 13 can play a limiting role to prevent the connector 7 from being further inserted into the pipe. The butt joint pipe in this embodiment cooperates with the second pipe column 602, and the transition part 702 is located between the butt joint part 701 and the connecting part 703. The surface of the connecting part 703 is provided with an external thread for threaded connection with the end of the automobile pipe.

[0055] In the present embodiment, the number of the fixing mechanism 6 and the number of the clamping mechanism 1 are both more than one, the shape of the detection platform 5 is rectangular as a whole, and the clamping mechanism 1 is arranged on the edge of one side of the fixing platform, and the fixing mechanism 6 is arranged on the edge of the opposite side of the detection platform 5 where the clamping mechanism 1 is located. The use of this layout can reduce bending and twisting during pipeline inspection, and is convenient for rapid fixation of automobile pipelines. In actual processing, in order to further reduce the weight of the detection platform 5, more than one weight-reducing hole 14 is also opened on the detection platform 5, and the weight-reducing hole 14 avoids the installation position of the parts. For the convenience of carrying, the utility model is provided with more than one handle 15 on the upper surface of the edge of the detection platform 5, and at least one handle 15 is respectively provided on the upper surface of at least two opposite sides, as shown in the specific example. Figure 5 shown.

[0056] like Figure 5 , Figures 7 to 10As shown, the fixing mechanism 6 includes a fixing seat 601, a second pipe column 602 and a second limiting assembly 603, wherein the bottom of the fixing seat 601 is fixed on the detection platform 5, and the second pipe column 602 passes through the fixing seat 601 and is fixedly connected to the fixing seat 601; a through hole is opened in the center of the second pipe column 602, and the end edge of the second pipe column 602 at one end that cooperates with the detected pipeline 17 is chamfered; the second limiting assembly 603 cooperates with the detected pipeline 17.

[0057] The second pipe column 602 plays the role of clamping and positioning. The second pipe column 602 can be connected to the fixing seat 601 by threaded connection, clamping or welding. A through hole is opened in the center of the second pipe column 602 to facilitate air tightness detection. During the air tightness detection process, the second pipe column 602 cooperates with the corresponding air tightness detection device. The purpose of the chamfered edge of the end of the second pipe column 602 that cooperates with the tested pipe 17 is to facilitate the cooperation between the tested pipe 17 and the second pipe column 602. On the one hand, it plays a guiding role to facilitate the rapid cooperation of the tested pipe 17; on the other hand, it can also prevent the tested pipe 17 from being scratched by the second pipe column 602.

[0058] like Figures 7 to 10 As shown, in this embodiment, the fixing seat 601 includes a connecting plate 611 and a fixing plate 612, wherein the connecting plate 611 is vertically fixed on the detection platform 5, and the lower end of the connecting plate 611 is fixedly connected to the detection platform 5, and the upper end is fixedly connected to the fixing plate 612; the fixing plate 612 is tilted, and together with the connecting plate 611, it forms a "V"-shaped fixing seat 601, and the opening direction of the "V"-shaped fixing seat 601 is toward the direction away from the clamping mechanism 1. The above method can make the upper surface of the fixing plate 612 tilted, which is convenient for installing the connector 7 and other parts.

[0059] like Figures 7 to 10 As shown, guide plates 8 are respectively provided on both sides of the plate surface of the fixed plate 612 close to the clamping mechanism 1, and guide grooves 9 are opened on the surfaces of the guide plates 8. A supporting plate 10 perpendicular to the fixed plate 612 is fixedly connected at the junction of the fixed plate 612 and the connecting plate 611; the second limiting component 603 includes a cylinder 631 and a clamping plate 633, and the cylinder 631 is fixed on the supporting plate 10; the end of the output shaft 632 of the cylinder 631 is fixedly connected to the clamping plate 633, and both sides of the clamping plate 633 are embedded in the guide grooves 9; a clamping groove 11 cooperating with the connecting head 7 is opened on the top of the clamping plate 633, and the shape of the clamping groove 11 matches the shape of the connecting head 7.

[0060] The cylinder 631 in this embodiment is a common cylinder 631 in the prior art, and its function is to drive the clamping plate 633 at the end of the output shaft 632 of the cylinder 631 to move, thereby controlling the matching state of the clamping plate 633 and the connector 7. In this embodiment, the shape of the clamping groove 11 is semicircular, and it is used to cooperate with the first boss 12 in the connector 7 to achieve position limiting. Specifically, before fixing the connector 7, the output shaft 632 of the cylinder 631 is retracted into the cylinder 631, and the clamping plate 633 is located at the lower position of the fixing plate 612; after fixing the connector 7, the output shaft 632 of the cylinder 631 extends out and drives the clamping plate 633 to slide upward along the guide groove 9 until the clamping groove 11 contacts the transition portion 702 of the connector 7, at which time one surface of the clamping plate 633 contacts the first boss 12, thereby achieving position limiting of the connector 7 and preventing the connector 7 from being separated from the second pipe column 602.

[0061] In each fixing mechanism 6 of this embodiment, a baffle 16 is further provided between the guide plates 8 on both sides of the fixing plate 612. Figure 5 , Figure 7 and Figure 8 As shown, the baffle plate 16 is arranged at the lower part of the guide plate. The baffle plate 16 can be arranged to isolate the output shaft 632 of the cylinder 631, so as to prevent the staff from touching the output shaft 632 of the working cylinder 631 and clamping their hands during operation, thereby reducing potential safety hazards.

[0062] In the utility model, the first pipe column and the second pipe column 602 can choose whether to need to be blocked according to the air tightness detection device actually used. If both sides of the pipeline need to be connected to the detection device, no blocking is required; if one end needs to be blocked, you can choose to block it or directly set the pipe column to a solid structure.

[0063] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only a specific implementation method of the utility model and is not intended to limit the utility model. Any modifications, equivalent substitutions and improvements made within the scope of the utility model should be included in the protection scope of the utility model.

Claims

1. An automobile pipe clamping mechanism, characterized in that: The invention comprises a mounting plate (101), a first pipe column (102), a fixing pipe (103), a clamping claw (104) and a fastening ring (105); wherein the first pipe column (102) vertically penetrates the mounting plate (101), the fixing pipe (103) is sleeved on the first pipe column (102), the fastening ring (105) is sleeved on the fixing pipe (103), and the first pipe column (102), the fixing pipe (103) and the fastening ring (105) are concentrically arranged from the inside to the outside; the fixing pipe (103) Two or more claws (104) are fixedly connected to the outer periphery of the end of the detected pipe (17) near one end thereof, and the claws (104) are tightened or opened by moving the fastening ring (105) on the fixed pipe (103); the pipe wall of the detected pipe (17) is embedded in the gap area between the first pipe column (102) and the claws (104), and the end of the first pipe column (102) that cooperates with the detected pipe (17) is embedded in the interior of the detected pipe (17).

2. The automobile pipe clamping mechanism according to claim 1, characterized in that: A through hole is provided at the center of the first tube column (102), and a chamfer is provided at the end edge of the first tube column (102) that cooperates with the detected pipeline (17).

3. The automobile pipe clamping mechanism according to claim 1 or 2, characterized in that: The fixed tube (103) comprises a fixed portion (131) and an adjusting portion (132), wherein the fixed portion (131) is fixedly connected to the mounting plate (101), and a fastening ring (105) is sleeved on the outside of the adjusting portion (132).

4. The clamping mechanism (1) according to claim 3, characterized in that: The fastening ring (105) is a ring-shaped structure with an internal thread, and an adjusting portion (132) that cooperates with the fastening ring (105) is provided with an external thread; the outer surface of the fastening ring (105) is also provided with one or more adjusting holes (2), and also includes an adjusting rod (3) movably connected to the adjusting hole (2).

5. The automobile pipe clamping mechanism according to claim 4, characterized in that: There are six adjustment holes (2), and the adjustment holes (2) are evenly distributed around the outer circumference of the fastening ring (105); one end of the adjustment rod (3) is embedded in any one of the adjustment holes (2) and is movably connected thereto.

6. The automobile pipe clamping mechanism according to claim 4 or 5, characterized in that: A first limiting assembly (4) cooperating with the adjusting rod (3) is also fixed on the mounting plate (101), and the first limiting assembly (4) comprises a limiting rod (401) penetrating the mounting plate (101) and movably connected to the mounting plate (101), and a limiting column (402) and a triangular block (403) respectively fixed at two ends of the limiting rod (401); and further comprises a coil spring (404) concentrically sleeved on the outer periphery of the limiting column (402); wherein the outer diameter of the limiting column (402) is greater than the outer diameter of the limiting rod (401); the triangular block (403) is located at one end close to the adjusting rod (3), and the inclined surface of the triangular block (403) is upward, and the width of the triangular block (403) along the central axis direction of the first tube column (102) covers the range of movement of the fastening ring (105) on the fixed tube (103).

7. A vehicle pipeline air tightness detection and fixing device, characterized in that: The invention comprises a detection platform (5) and a fixing mechanism (6), and also comprises the automobile pipe clamping mechanism (1) as claimed in any one of claims 1 to 6; the fixing mechanism (6) and the clamping mechanism (1) are both fixed on the detection platform (5), wherein a mounting plate (101) in the clamping mechanism (1) is vertically fixed on the detection platform (5); the fixing mechanism (6) and the clamping mechanism (1) are connected via a detected pipe (17), and a connector (7) is provided at one end of the detected pipe (17) connected to the fixing mechanism (6) for clamping with the fixing mechanism (6).

8. The automobile pipeline air tightness detection and fixing device according to claim 7 is characterized in that: The fixing mechanism (6) comprises a fixing seat (601), a second pipe column (602) and a second limiting assembly (603), wherein the bottom of the fixing seat (601) is fixed on the detection platform (5), the second pipe column (602) passes through the fixing seat (601) and is fixedly connected to the fixing seat (601); a through hole is provided at the center of the second pipe column (602), and a chamfer is provided at the end edge of the second pipe column (602) that cooperates with the detected pipeline (17); and the second limiting assembly (603) cooperates with the detected pipeline (17).

9. The automobile pipeline air tightness detection and fixing device according to claim 7 or 8, characterized in that: The fixing seat (601) comprises a connecting plate (611) and a fixing plate (612), wherein the connecting plate (611) is vertically fixed on the detection platform (5), and the lower end of the connecting plate (611) is fixedly connected to the detection platform (5), and the upper end is fixedly connected to the fixing plate (612); the fixing plate (612) is arranged obliquely, and together with the connecting plate (611) forms a "V"-shaped fixing seat (601), and the opening direction of the "V"-shaped fixing seat (601) is towards a direction away from the clamping mechanism (1).

10. The automobile pipeline air tightness detection and fixing device according to claim 9, characterized in that: Guide plates (8) are respectively provided on both sides of the plate surface of the fixed plate (612) close to the clamping mechanism (1), and guide grooves (9) are provided on the surfaces of the guide plates (8). A bearing plate (10) perpendicular to the fixed plate (612) is fixedly connected at the junction of the fixed plate (612) and the connecting plate (611); the second limit assembly (603) comprises a cylinder (631) and a clamping plate (633), the cylinder (631) is fixed on the bearing plate (10), the end of the output shaft (632) of the cylinder (631) is fixedly connected to the clamping plate (633), and both sides of the clamping plate (633) are embedded in the guide grooves (9); a clamping groove (11) matching with the connecting head (7) is provided on the top of the clamping plate (633), and the shape of the clamping groove (11) matches the shape of the connecting head (7).

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