Portable connecting rod pneumatic measuring device

Abstract

The utility model discloses a portable connecting rod pneumatic measuring device which comprises a pneumatic measuring instrument body, one side of the lower surface of the pneumatic measuring instrument body is fixedly connected with an installation box, the interior of the installation box is slidably connected with a drawing cabinet, one side of the inner bottom wall of the drawing cabinet is provided with a detection assembly used for detecting a connecting rod, and the detection assembly is provided with a control module. A connecting plate is fixedly connected to the bottom of the mounting box, a rotating shaft is arranged on one side of the upper surface of the connecting plate, the connecting plate is rotationally connected with a protective shell through the rotating shaft, a lifting handle is fixedly connected to the center of the upper surface of the protective shell, and fixing bolts are fixedly connected to the four corners of the upper surface of the connecting plate; through the arrangement of the rotating shaft, the protective shell, the handle, the fixing bolt, the fixing plate and the through hole, the portability of the device is effectively improved, and meanwhile, when the device is carried and moved, the protective shell can also play a good role in protecting the internal pneumatic measuring instrument body and the detection assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of connecting rod pneumatic measurement, in particular to a portable connecting rod pneumatic measuring device. Background Technique

[0002] The connecting rod pneumatic measuring device adopts pneumatic measurement technology. By measuring the pressure or flow rate change of the gas flowing inside the connecting rod, the key dimensional parameters such as the aperture, taper, parallelism, and twist of the connecting rod can be indirectly obtained. This device has the advantages of non-contact measurement, small measuring force, no damage to the workpiece surface, and is suitable for measuring complex shapes and small sizes.

[0003] The detection table and the pneumatic measuring instrument body of the traditional connecting rod pneumatic measuring device usually adopt a split design. When moving the device, the detection table and the pneumatic measuring instrument body need to be carried separately, and their volumes are relatively large, so the portability is poor, and it is difficult to meet the requirements of rapid and flexible measurement in the production site. Content of the Utility Model

[0004] In order to solve the defect that the traditional connecting rod pneumatic measuring device in the prior art needs to carry the detection table and the pneumatic measuring instrument body separately when moving the device, and the portability is poor, and it is difficult to meet the requirements of rapid and flexible measurement in the production site, the utility model provides a portable connecting rod pneumatic measuring device.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] The portable connecting rod pneumatic measuring device of the utility model includes a pneumatic measuring instrument body. One side of the lower surface of the pneumatic measuring instrument body is fixedly connected with an installation box. A drawer is slidably connected in the installation box. One side of the inner bottom wall of the drawer is provided with a detection component for detecting the connecting rod;

[0007] The bottom of the installation box is fixedly connected with a connecting plate. One side of the upper surface of the connecting plate is provided with a rotating shaft. The connecting plate is rotatably connected with a protective shell through the rotating shaft. The center of the upper surface of the protective shell is fixedly connected with a handle;

[0008] Four corners of the upper surface of the connecting plate are fixedly connected with fixing bolts. Both sides of the outer side wall of the protective shell are fixedly connected with fixing plates. Through holes adapted to the fixing bolts are opened on both sides of the fixing plates close to the fixing bolts.

[0009] As a preferred technical solution of the present utility model, the detection assembly includes a detection table fixedly connected to one side of the inner bottom wall of the drawer cabinet for placing the connecting rod, and pneumatic measuring heads arranged on both sides of the upper surface of the detection table for measuring the inner diameter of the connecting rod. A lower connection port is arranged on one side of the upper surface of the detection table close to the rotating shaft, and an upper connection port is arranged on the outer side wall of the pneumatic measuring instrument body far from the rotating shaft.

[0010] As a preferred technical solution of the present utility model, sealing grooves are provided on three sides of the upper surface of the connecting plate far from the rotating shaft, and sealing strips adapted to the sealing grooves are fixedly connected to the lower surface of the protective housing.

[0011] As a preferred technical solution of the present utility model, rotating rods are rotatably connected to both sides of the outer side wall of the installation box. An internal gear is fixedly connected to one end of the rotating rod located inside the installation box, and an external gear is fixedly connected to one end of the rotating rod located outside the installation box. Straight racks meshing with the internal gear are fixedly connected to both sides of the upper surface of the drawer cabinet, and arc racks meshing with the external gear are fixedly connected to both sides of the inner side wall of the protective housing.

[0012] As a preferred technical solution of the present utility model, sliding rails are arranged on both sides of the inner side wall of the installation box, and sliding strips adapted to the sliding rails are fixedly connected to both sides of the outer side wall of the drawer cabinet. The drawer cabinet is slidably connected to the installation box through the sliding strips and the sliding rails.

[0013] As a preferred technical solution of the present utility model, a lifting screw cylinder is rotatably connected to one side of the inner bottom wall of the drawer cabinet far from the rotating shaft. Limiting holes are provided on both sides of the inner bottom wall of the drawer cabinet close to the lifting screw cylinder. A limiting strip adapted to the limiting hole is inserted into the limiting hole. A backing plate is fixedly connected to the bottom end of the limiting strip, and a lifting bolt adapted to the lifting screw cylinder is fixedly connected to the center of the upper surface of the backing plate.

[0014] The beneficial effects of the present utility model are:

[0015] 1. For this portable pneumatic measuring device for connecting rods, through the settings of the rotating shaft, the protective housing, the handle, the fixing bolts, the fixing plate and the through holes, when it is necessary to carry and move the device, first rotate the protective housing through the rotating shaft until the lower surface of the protective housing completely fits the connecting plate. After the lower surface of the protective housing completely fits the connecting plate, sleeve the gasket and the nut on the fixing bolt and thread the nut tightly, thereby completing the relative fixation between the fixing plate and the connecting plate. After the relative fixation between the fixing plate and the connecting plate, the staff can lift the device through the handle and carry and move the device, thereby effectively improving the portability of the device. At the same time, when the device is carried and moved, the protective housing can also play a good protective role for the pneumatic measuring instrument body and the detection assembly inside;

[0016] 2. This portable link pneumatic measuring device, through the cooperation of a rotating rod, an internal gear, an external gear, a straight rack, and an arc rack, while rotating along the rotating shaft to open the protective housing, the arc rack drives the external gear and the internal gear to rotate, and then drives the straight rack and the drawer cabinet to slide out of the installation box. When the device is used up, while slowly rotating along the rotating shaft to close the protective housing, the arc rack drives the external gear and the internal gear to rotate, and then drives the straight rack and the drawer cabinet to slide into the installation box, so that the drawer cabinet can open and close automatically following the opening and closing of the protective housing, simplifying the operation process of the staff and improving the work efficiency to a certain extent;

[0017] 3. This portable link pneumatic measuring device, through the cooperation of a lifting screw cylinder, a limit hole, a limit strip, a backing plate, and a lifting bolt, after the drawer cabinet slides out of the installation box, the staff can rotate the lifting screw cylinder, and then drive the lifting bolt and the backing plate fixedly connected to the lifting bolt to move down and fit the desktop, thus playing a certain supporting role on the side of the drawer cabinet away from the installation box, and trying to avoid the drawer cabinet and the slide rail being deformed under the influence of gravity after long-term use and affecting the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention. In the drawings:

[0019] Figure 1 is a three-dimensional structural schematic diagram of the portable link pneumatic measuring device of the present invention;

[0020] Figure 2 is a structural schematic diagram of the handle of the portable link pneumatic measuring device of the present invention;

[0021] Figure 3 is a three-dimensional structural schematic diagram of the drawer cabinet of the portable link pneumatic measuring device of the present invention;

[0022] Figure 4 is a front view sectional structural schematic diagram of the installation box of the portable link pneumatic measuring device of the present invention;

[0023] Figure 5 is a side view sectional structural schematic diagram of the installation box of the portable link pneumatic measuring device of the present invention.

[0024] In the figure: 1. Pneumatic measuring instrument body; 2. Installation box; 3. Drawer cabinet; 4. Detection component; 41. Detection table; 42. Pneumatic measuring head; 43. Lower connection port; 44. Upper connection port; 5. Connection plate; 6. Rotating shaft; 7. Protective housing; 8. Handle; 9. Fixed bolt; 10. Fixed plate; 11. Perforation; 12. Sealing groove; 13. Sealing strip; 14. Rotating rod; 15. Internal gear; 16. External gear; 17. Straight rack; 18. Arc rack; 19. Slide rail; 20. Slide bar; 21. Lifting screw barrel; 22. Limit hole; 23. Limit strip; 24. Base plate; 25. Lifting bolt. Specific embodiments

[0025] The following is combined with the attached Figures 1-5 The preferred embodiments of the present utility model are described. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present utility model, and are not used to limit the present utility model.

[0026] Referring to Figure 1 、 Figure 2 and Figure 3 , the portable connecting rod pneumatic measuring device of the present utility model includes a pneumatic measuring instrument body 1. A mounting box 2 is fixedly connected to the bottom of the pneumatic measuring instrument body 1, and a drawer cabinet 3 is slidably connected in the mounting box 2;

[0027] Referring to Figure 1 、 Figure 3 and Figure 4 , sliding rails 19 are provided on both sides of the inner side wall of the mounting box 2, and slide bars 20 adapted to the sliding rails 19 are fixedly connected to both sides of the outer side wall of the drawer cabinet 3. The drawer cabinet 3 is slidably connected in the mounting box 2 through the slide bars 20 and the sliding rails 19;

[0028] Referring to Figure 1 、 Figure 3 and Figure 4 , a detection component 4 for detecting the connecting rod is provided on one side of the inner bottom wall of the drawer cabinet 3. The detection component 4 includes a detection table 41 fixedly connected to one side of the inner bottom wall of the drawer cabinet 3 for placing the connecting rod and pneumatic measuring heads 42 provided on both sides of the upper surface of the detection table 41 for measuring the inner diameter of the connecting rod. A lower connection port 43 is provided on one side of the upper surface of the detection table 41 close to the rotating shaft 6, and an upper connection port 44 is provided on one side of the outer side wall of the pneumatic measuring instrument body 1 far from the rotating shaft 6. When in use, the staff can first pull out the drawer cabinet 3 from the mounting box 2, and then insert and connect an air pipe between the upper connection port 44 and the lower connection port 43, so that the pneumatic measuring heads 42 provided on both sides of the upper surface of the detection table 41 are connected to the air source of the pneumatic measuring instrument body 1. After use, the connection air pipe is removed between the upper connection port 44 and the lower connection port 43, and the connection air pipe is placed in the drawer cabinet 3 for storage;

[0029] Referring toFigure 1 and Figure 2 , the bottom of the installation box 2 is fixedly connected with a connecting plate 5, a rotating shaft 6 is arranged on one side of the upper surface of the connecting plate 5, and the connecting plate 5 is rotatably connected with a protective shell 7 through the rotating shaft 6. The three sides of the upper surface of the connecting plate 5 away from the rotating shaft 6 are provided with sealing grooves 12, and the lower surface of the protective shell 7 is fixedly connected with a sealing strip 13 adapted to the sealing groove 12. The sealing strip 13 should be a rubber sealing strip, the width of the sealing strip 13 is slightly smaller than the width of the sealing groove 12, and the height of the sealing strip 13 is slightly larger than the depth of the sealing groove 12. When the device is used, the protective shell 7 is rotated by the rotating shaft 6 until the lower surface of the protective shell 7 is completely in contact with the connecting plate 5. At this time, the sealing strip 13 is inserted into the sealing groove 12. Since the rubber itself has a certain deformation ability, the sealing strip 13 completely abuts against the inner bottom wall of the sealing groove 12 and generates a certain deformation to fill the gap between the sealing strip 13 and the inner side wall of the sealing groove 12, effectively ensuring the sealing between the internal space and the external space formed by the mutual sealing of the protective shell 7 and the connecting plate 5. At this time, the protective shell 7 can not only play a good protective role for the internal pneumatic measuring instrument body 1 and the detection component 4, but also can try to avoid the internal parts of the pneumatic measuring instrument body 1 and the detection component 4 from being damp and rusted when the external humidity is high, thereby shortening the service life of the equipment;

[0030] Reference Figure 1 and Figure 2 , the four corners of the upper surface of the connecting plate 5 are fixedly connected with fixing bolts 9, and the two sides of the outer wall of the protective shell 7 are fixedly connected with fixing plates 10. The fixing plates 10 are provided with through holes 11 adapted to the fixing bolts 9 on both sides close to the fixing bolts 9. When the device needs to be carried and moved, the protective shell 7 is first rotated by the rotating shaft 6 until the lower surface of the protective shell 7 is completely in contact with the connecting plate 5. After the lower surface of the protective shell 7 is completely in contact with the connecting plate 5, the gasket and the nut are sleeved on the fixing bolts 9 and the nut is threadedly tightened, thereby completing the relative fixation between the fixing plate 10 and the connecting plate 5. The center of the upper surface of the protective shell 7 is fixedly connected with a handle 8. When the fixing plate 10 and the connecting plate 5 are relatively fixed, the staff can lift the device by the handle 8 and carry the device;

[0031] Reference Figure 1 , Figure 4 and Figure 5, both sides of the outer wall of the installation box 2 are rotatably connected with a rotating rod 14, one end of the rotating rod 14 located in the installation box 2 is fixedly connected with an internal gear 15, and the other end of the rotating rod 14 located outside the installation box 2 is fixedly connected with an external gear 16, and both sides of the upper surface of the pull-out cabinet 3 are fixedly connected with a straight rack 17 meshing with the internal gear 15, and both sides of the inner wall of the protective shell 7 are fixedly connected with an arc rack 18 meshing with the external gear 16. When the device needs to be used, first place the connecting plate 5 stably on the desktop, remove the nut threaded and tightened on the fixing bolt 9, and then rotate and open the protective shell 7 through the rotating shaft 6. In this process, the arc rack 18 drives the external gear 16 to rotate, and the external gear 16 drives the internal gear 15 to rotate synchronously. During the rotation process, the internal gear 15 drives the straight rack 17 meshing with the internal gear 15 to move away from the rotating shaft 6, thereby causing the pull-out cabinet 3 to move away from the rotating shaft 6 and exposing the detection component 4;

[0032] When the device is used, the protective housing 7 is rotated and closed by rotating the shaft 6. During this process, the arc-shaped rack 18 first abuts against the outer gear 16 and meshes with the outer gear 16, and then drives the outer gear 16 to rotate. The outer gear 16 drives the inner gear 15 to rotate synchronously. During the rotation process, the inner gear 15 drives the spur rack 17 meshing with the inner gear 15 to move toward the side close to the shaft 6, thereby moving the drawer cabinet 3 toward the side close to the shaft 6 and allowing the drawer cabinet 3 to completely enter the installation box 2.

[0033] A lifting threaded cylinder 21 is rotatably connected to the side of the inner bottom wall of the pull-out cabinet 3 away from the rotating shaft 6, and limit holes 22 are provided on both sides of the inner bottom wall of the pull-out cabinet 3 close to the lifting threaded cylinder 21. Limiting bars 23 matched with the limiting holes 22 are inserted in the limiting holes 22, and the bottom end of the limiting bar 23 is fixedly connected with a pad 24, and the center of the upper surface of the pad 24 is fixedly connected with a lifting bolt 25 matched with the lifting threaded cylinder 21. When the device needs to be used, after the pull-out cabinet 3 slides out of the installation box 2, the staff can rotate the lifting threaded cylinder 21, thereby driving the lifting bolt 25 and the pad 24 fixedly connected to the lifting bolt 25 to move downward and fit the desktop, thereby playing a certain supporting role on the side of the pull-out cabinet 3 away from the installation box 2, and trying to avoid the pull-out cabinet 3 and the slide rail 19 from being affected by gravity after long-term use. Deformation occurs and affects the service life of the device.

[0034] The implementation principle of the present application is as follows: when the device is needed, first place the connecting plate 5 stably on the desktop, remove the nut threadedly tightened on the fixing bolt 9, and then rotate and open the protective housing 7 through the rotating shaft 6. During this process, the arc-shaped rack 18 drives the outer gear 16 to rotate, and the outer gear 16 drives the inner gear 15 to rotate synchronously. During the rotation process, the inner gear 15 drives the spur rack 17 meshing with the inner gear 15 to move away from the rotating shaft 6, thereby moving the drawer cabinet 3 away from the rotating shaft 6 and exposing the detection component 4.

[0035] After the drawer cabinet 3 slides out of the installation box 2, the staff can rotate the lifting screw cylinder 21, thereby driving the lifting bolt 25 and the backing plate 24 fixedly connected to the lifting bolt 25 to move downward and fit the desktop, thereby playing a certain supporting role on the side of the drawer cabinet 3 away from the installation box 2, and trying to avoid the drawer cabinet 3 and the slide rail 19 being deformed under the influence of gravity after long-term use, which affects the service life of the device;

[0036] Then, connect the connecting air pipe between the upper connection port 44 and the lower connection port 43, so that the pneumatic measuring heads 42 arranged on both sides of the upper surface of the inspection table 41 are connected to the air source of the pneumatic measuring instrument body 1. The two ends of the connecting rod to be detected are respectively sleeved on the two pneumatic measuring heads 42 to detect the connecting rod. After use, remove the connecting air pipe between the upper connection port 44 and the lower connection port 43, and place the connecting air pipe in the drawer cabinet 3 for storage;

[0037] When the device needs to be carried and moved after use, the staff rotates the lifting screw cylinder 21 again, thereby driving the lifting bolt 25 and the backing plate 24 fixedly connected to the lifting bolt 25 to move upward and fit the lower surface of the drawer cabinet 3. Rotate the protective housing 7 through the rotating shaft 6 to close it. During this process, the arc-shaped rack 18 first abuts against the external gear 16 and meshes with the external gear 16, and then drives the external gear 16 to rotate. The external gear 16 drives the internal gear 15 to rotate synchronously. During the rotation of the internal gear 15, the straight rack 17 meshing with the internal gear 15 moves toward the side close to the rotating shaft 6, thereby moving the drawer cabinet 3 toward the side close to the rotating shaft 6, and making the drawer cabinet 3 completely enter the installation box 2;

[0038] When the lower surface of the protective housing 7 completely fits the connecting plate 5, at this time, the sealing strip 13 is inserted into the sealing groove 12. Since the rubber itself has a certain deformation ability, the sealing strip 13 completely abuts against the inner bottom wall of the sealing groove 12 and deforms to fill the gap between the sealing strip 13 and the inner side wall of the sealing groove 12, effectively ensuring the sealing between the internal space and the external space formed after the protective housing 7 and the connecting plate 5 are hermetically sealed. At this time, the protective housing 7 can not only play a good protective role for the internal pneumatic measuring instrument body 1 and the detection component 4, but also try to avoid the internal components of the pneumatic measuring instrument body 1 and the detection component 4 from being affected by moisture and rust when the external environment humidity is high, which shortens the service life of the equipment;

[0039] Then, sleeve the gasket and nut on the fixing bolt 9 and thread the nut tightly, thereby completing the relative fixation between the fixing plate 10 and the connecting plate 5. After the fixing plate 10 and the connecting plate 5 are relatively fixed, the staff can lift the device through the handle 8 and carry and move the device.

[0040] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A portable connecting rod pneumatic measuring device, comprising a pneumatic measuring instrument body (1), characterized in that: A mounting box (2) is fixedly connected to one side of the lower surface of the pneumatic measuring instrument body (1), a drawer cabinet (3) is slidably connected inside the mounting box (2), and a detection component (4) for detecting the connecting rod is provided on one side of the inner bottom wall of the drawer cabinet (3); A connecting plate (5) is fixedly connected to the bottom of the installation box (2); a rotating shaft (6) is provided on one side of the upper surface of the connecting plate (5); the connecting plate (5) is rotatably connected to a protective shell (7) via the rotating shaft (6); a handle (8) is fixedly connected to the center of the upper surface of the protective shell (7); The four corners of the upper surface of the connecting plate (5) are fixedly connected with fixing bolts (9), the two sides of the outer wall of the protective shell (7) are fixedly connected with fixing plates (10), and the two sides of the fixing plate (10) close to the fixing bolts (9) are provided with through holes (11) adapted to the fixing bolts (9).

2. The portable connecting rod pneumatic measuring device according to claim 1, characterized in that: The detection assembly (4) comprises a detection table (41) fixedly connected to one side of the inner bottom wall of the drawer cabinet (3) for placing a connecting rod, and a pneumatic measuring head (42) arranged on both sides of the upper surface of the detection table (41) for measuring the inner diameter of the connecting rod, a lower connecting port (43) being arranged on the side of the upper surface of the detection table (41) close to the rotating shaft (6), and an upper connecting port (44) being arranged on the side of the outer side wall of the pneumatic measuring instrument body (1) away from the rotating shaft (6).

3. The portable connecting rod pneumatic measuring device according to claim 2, characterized in that: The three sides of the upper surface of the connecting plate (5) away from the rotating shaft (6) are provided with sealing grooves (12), and the lower surface of the protective shell (7) is fixedly connected with a sealing strip (13) adapted to the sealing groove (12).

4. The portable connecting rod pneumatic measuring device according to claim 3, characterized in that: Both sides of the outer wall of the installation box (2) are rotatably connected to a rotating rod (14); one end of the rotating rod (14) located inside the installation box (2) is fixedly connected to an internal gear (15); one end of the rotating rod (14) located outside the installation box (2) is fixedly connected to an external gear (16); both sides of the upper surface of the drawer cabinet (3) are fixedly connected to a straight rack (17) meshing with the internal gear (15); and both sides of the inner wall of the protective shell (7) are fixedly connected to an arc-shaped rack (18) meshing with the external gear (16).

5. The portable connecting rod pneumatic measuring device according to claim 4, characterized in that: Slide rails (19) are provided on both sides of the inner wall of the installation box (2), and slide bars (20) compatible with the slide rails (19) are fixedly connected to both sides of the outer wall of the drawer cabinet (3), and the drawer cabinet (3) is slidably connected to the installation box (2) via the slide bars (20) and the slide rails (19).

6. The portable connecting rod pneumatic measuring device according to claim 5, characterized in that: A lifting threaded cylinder (21) is rotatably connected to the side of the inner bottom wall of the pull-out cabinet (3) away from the rotating shaft (6), and limiting holes (22) are provided on both sides of the inner bottom wall of the pull-out cabinet (3) close to the lifting threaded cylinder (21), and a limiting strip (23) adapted to the limiting hole (22) is inserted into the limiting hole (22), and a pad (24) is fixedly connected to the bottom end of the limiting strip (23), and a lifting bolt (25) adapted to the lifting threaded cylinder (21) is fixedly connected to the center of the upper surface of the pad (24).

Images