Dynamic bending detection device for pneumatic pipe

Abstract

The utility model discloses a pneumatic pipe dynamic bending detection device which comprises a bottom plate, an inflator pump, a pneumatic pipe, a support, two horizontal adjusting assemblies, a fixing assembly and a bending assembly, the horizontal adjusting assemblies are located at the top of the bottom plate, and each horizontal adjusting assembly comprises a driving device and a transmission sleeve. The transmission sleeves are suitable for being driven by the driving device to do linear movement, the fixing assemblies are arranged on the corresponding transmission sleeves, the two fixing assemblies are fixed to one ends of the pneumatic pipes respectively, and the inflator pump is suitable for enabling gas to penetrate through the fixing assemblies and be introduced into the pneumatic pipes. The bending assembly comprises a vertical rotating assembly and a traction plate, the traction plate moves along with the transmission sleeve, the vertical rotating assembly is suitable for driving the traction plate to rotate under the movement of the traction plate so as to extrude the pneumatic pipe, and an extrusion part is additionally arranged on the basis of single bending of the pneumatic pipe so as to assist the pneumatic pipe to be bent for multiple times; and the detection accuracy is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pneumatic tube detection, and in particular to a pneumatic tube dynamic bending detection device. Background Art

[0002] Currently, most dynamic bending detection devices for pneumatic tubes use a fixed structure and operating principle. For example, they fix the two ends of the pneumatic tube through a cylinder guide mechanism and simulate its morphological bending changes under specific conditions such as braking. However, such devices can only achieve a single bending mode and cannot perform various bending tests on the pneumatic tube according to actual needs.

[0003] A search revealed a Chinese utility model patent with authorization publication number CN216433799U, which discloses a dynamic bending detection device for pneumatic tubes. The patent includes a workbench, track bars, linear guides, and a cylinder guide mechanism, which can simulate the bending changes of the pneumatic tube during braking and detect leakage or deformation. The device can adjust the height and distance of the two ends as needed to change the bending radius, making it highly practical. A counter is also provided to record the number of bends, providing accurate data. However, no matter how the patent adjusts the air tube, the ultimate result is a single bend. Pneumatic tubes face more than just a single bend in actual applications, so it is impossible to effectively detect whether the pneumatic tube can withstand multiple bends without leaking. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the defects in the prior art. On the basis of a single bend of the pneumatic tube, an additional extrusion component is provided to assist the pneumatic tube in performing multiple bends, thereby improving the accuracy of detection.

[0005] In order to solve the above technical problems, the technical solution of the utility model is a pneumatic tube dynamic bending detection device, comprising:

[0006] base plate;

[0007] An air pump mounted on the base plate;

[0008] a bracket mounted on the base plate;

[0009] Two level adjustment assemblies, each level adjustment assembly being located on top of the base plate, each level adjustment assembly comprising a drive device and a transmission sleeve, wherein the transmission sleeve is connected to the drive device and is adapted to be driven by the drive device to move linearly;

[0010] A fixing assembly, wherein the fixing assembly is arranged on the corresponding transmission sleeve, and the two fixing assemblies respectively fix one end of the pneumatic tube, and the air pump is suitable for passing the gas through the fixing assembly and into the pneumatic tube;

[0011] The bending assembly includes a vertical rotating assembly and a traction plate. The traction plate moves with the transmission sleeve. The vertical rotating assembly is connected to the traction plate and is suitable for driving the traction plate to rotate when the traction plate moves to squeeze the pneumatic tube fixed on the fixed assembly.

[0012] Furthermore, the driving device includes a housing, a driving motor and a threaded rod;

[0013] The housing is connected to the top of the base plate, the driving motor is located outside the housing, the threaded rod is rotatably installed in the housing, and the driving motor is connected to the threaded rod to drive the threaded rod to rotate in the housing;

[0014] The transmission sleeve is assembled on the threaded rod, and the threaded rod rotates to drive the transmission sleeve to perform linear motion along the axial direction of the threaded rod.

[0015] Furthermore, a traction hole is provided on the traction plate, and the pneumatic tube is placed in the traction hole.

[0016] Furthermore, the vertical rotation assembly includes a connecting sleeve, a rotating shaft, a gear 1 and a rack 1, the rack 1 is fixedly connected to the inside of the bracket, and the traction plate is fixedly sleeved on the rotating shaft;

[0017] The connecting sleeve is connected to the outer circumferential surface of the transmission sleeve, the rotating shaft is rotatably installed in the connecting sleeve, one end of the rotating shaft extends out of the interior of the connecting sleeve, and the gear 1 is fixedly connected to the protruding end of the rotating shaft;

[0018] The gear 1 is meshed with the rack 1.

[0019] Furthermore, the fixing component is rotatably mounted on the corresponding transmission sleeve, and a twisting component is provided on the outside of the fixing component. The twisting component is suitable for driving the fixing component and the pneumatic tube connected thereto to rotate.

[0020] Furthermore, the twisting assembly includes a second gear and a second rack, the second rack is connected to the bracket, and the second gear is fixedly sleeved on the outside of the fixing assembly;

[0021] The second gear is meshed with the second rack.

[0022] Furthermore, the fixing assembly includes a connecting disk and a conical rubber plug, wherein the connecting disk is connected to the top of the transmission sleeve;

[0023] A sealing groove is provided on the connecting plate, and a sealing gasket is provided in the sealing groove.

[0024] Furthermore, the fixing assembly further comprises two extrusion plates and a locking component;

[0025] The connecting plate is provided with two symmetrically arranged sliding grooves, the extrusion plates are slidably connected in the corresponding sliding grooves, and the two extrusion plates are adapted to move toward each other after being actuated;

[0026] The two extrusion plates are butt-jointed via a locking component.

[0027] Furthermore, the locking component is a fastening bolt, and threaded holes are provided in the two extrusion plates.

[0028] Furthermore, it also includes a sealing cover, which is connected to the bottom of the corresponding transmission sleeve, and the sealing cover is connected to the air pump through a hose;

[0029] A vent hole is provided on the conical rubber plug, the vent hole passes through the conical rubber plug and the transmission sleeve, and the vent hole is communicated with the inner cavity of the sealing cover.

[0030] By adopting the above technical solution, the utility model has the following beneficial effects:

[0031] 1. Through the arrangement of the horizontal adjustment component and the bending component, two separately controlled drive motors in the horizontal adjustment component respectively control the two transmission sleeves to move linearly, thereby realizing simple bending of the pneumatic tube. When the transmission sleeve moves linearly, it drives the engagement of gear 1 and rack 1 in the bending component, thereby realizing the rotation of the traction plate. The traction plate further pulls the pneumatic tube to realize more diverse bending and improve the accuracy of detection.

[0032] 2. Through the arrangement of structures such as the horizontal adjustment component and the twisting component, when the horizontal adjustment component drives the two transmission sleeves to move, a simple bending is caused on the pneumatic tube. On the basis of the bending, the engagement of gear 2 and rack 2 in the twisting component is driven to realize the entire fixed component driving the pneumatic tube to rotate, thereby achieving the effect of twisting the pneumatic tube and further improving the accuracy of the detection.

[0033] 3. By setting up the conical rubber plug and extrusion plate and other structures in the fixing assembly, the pneumatic tube is connected to the conical rubber plug, and the conical rubber plug squeezes the inner wall of the pneumatic tube to achieve fixation and sealing. On this basis, the two extrusion plates are fixed by fastening bolts after being connected, and the extrusion plate further squeezes and fixes the conical rubber plug and the pneumatic tube.

[0034] 4. Through the setting of the sealing cover, the sealing cover and the air pump are connected by a hose, so that the gas directly enters the vent hole of the conical rubber plug through the space inside the sealing cover, and then inflates the inside of the pneumatic tube, avoiding the continuous bending of the hose connected to the air pump when the pneumatic tube is bent. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0036] Figure 2 This is a schematic diagram of the structure of the level adjustment component of the utility model;

[0037] Figure 3 This is a schematic diagram of the transmission structure of the utility model;

[0038] Figure 4 This is a schematic diagram of the fixing assembly structure of the utility model;

[0039] Figure 5 This is a schematic diagram of the bending component structure of the present utility model.

[0040] In the figure: 1, bottom plate; 2, air pump; 3, pneumatic tube;

[0041] 4. Level adjustment assembly; 41. Drive motor; 42. Threaded rod; 43. Transmission sleeve;

[0042] 5. Fixing assembly; 51. Conical rubber plug; 52. Vent hole; 53. Sliding groove; 54. Extrusion plate; 55. Fastening bolt; 56. Sealing groove;

[0043] 6. Sealing cover;

[0044] 7. Twisting assembly; 71. Gear 2; 72. Rack 2;

[0045] 8. Bending assembly; 81. Connecting sleeve; 82. Pulling plate; 83. Pulling hole; 84. Rotating shaft; 85. Gear 1; 86. Rack 1;

[0046] 9. Bracket. DETAILED DESCRIPTION

[0047] In order to make the contents of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments in conjunction with the accompanying drawings.

[0048] Example 1

[0049] like Figure 1-2 、 Figure 5 As shown, the pneumatic tube dynamic bending detection device includes:

[0050] Base plate 1;

[0051] An air pump 2 mounted on the base plate 1;

[0052] A bracket 9 mounted on the base plate 1;

[0053] Two level adjustment components 4, the level adjustment components 4 are located on the top of the base plate 1, and the level adjustment components 4 include a driving device and a transmission sleeve 43, and the transmission sleeve 43 is connected to the driving device so as to be suitable for linear movement after being driven by the driving device;

[0054] The fixing components 5 are arranged on the corresponding transmission sleeves 43. The two fixing components 5 fix one end of the pneumatic tube 3 respectively. The air pump 2 is suitable for passing the gas through the fixing components 5 and into the pneumatic tube 3.

[0055] The bending assembly 8 includes a vertical rotating assembly and a traction plate 82. The traction plate 82 moves following the transmission sleeve 43. The vertical rotating assembly is connected to the traction plate 82 and is suitable for driving the traction plate 82 to rotate when the traction plate 82 moves to squeeze the pneumatic tube 3 fixed on the fixed assembly 5.

[0056] like Figure 2-3 As shown, the driving device includes a housing, a driving motor 41 and a threaded rod 42;

[0057] The housing is connected to the top of the base plate 1, the drive motor 41 is located outside the housing, the threaded rod 42 is rotatably installed in the housing, and the drive motor 41 is connected to the threaded rod 42 to drive the threaded rod 42 to rotate in the housing;

[0058] The transmission sleeve 43 is assembled on the threaded rod 42 , and the threaded rod 42 rotates to drive the transmission sleeve 43 to perform linear motion along the axial direction of the threaded rod 42 .

[0059] like Figure 5 As shown, a traction hole 83 is opened on the traction plate 82, and the pneumatic tube 3 is placed in the traction hole 83.

[0060] like Figure 5 As shown, the vertical rotation assembly includes a connecting sleeve 81, a rotating shaft 84, a gear 85 and a rack 86. The rack 86 is fixedly connected to the inside of the bracket 9, and the traction plate 82 is fixedly sleeved on the rotating shaft 84.

[0061] The connecting sleeve 81 is connected to the outer circumference of the transmission sleeve 43. The rotating shaft 84 is rotatably installed in the connecting sleeve 81. One end of the rotating shaft 84 extends out of the interior of the connecting sleeve 81. The gear 1 85 is fixedly connected to the extended end of the rotating shaft 84.

[0062] Gear 1 85 is meshed with rack 1 86 .

[0063] like Figure 3-4 As shown, the fixed component 5 is rotatably mounted on the corresponding transmission sleeve 43 , and a twisting component 7 is provided on the outside of the fixed component 5 , which is suitable for driving the fixed component 5 and the pneumatic tube 3 connected thereto to rotate.

[0064] like Figure 4As shown, the twisting assembly 7 includes a second gear 71 and a second rack 72 , the second rack 72 is connected to the bracket 9 , and the second gear 71 is fixedly sleeved on the outside of the fixed assembly 5 ;

[0065] The second gear 71 and the second rack 72 are meshed with each other.

[0066] The working principle of this embodiment is as follows:

[0067] When in use, first fix the two ends of the pneumatic tube 3 to the fixing components 5 on the two corresponding transmission sleeves 43 respectively, and the air pump 2 passes the gas into the interior of the pneumatic tube 3 through the hose. By listening to the sound and touching the surface, you can judge whether there is a leakage.

[0068] On this basis, it is necessary to further detect whether there is a leakage problem in the pneumatic tube 3 during actual use by bending the pneumatic tube 3. When the transmission sleeve 43 moves away from the drive motor 41, it can drive the bending component 8 to work, so that the pneumatic tube 3 produces various bends. When the transmission sleeve 43 moves toward the drive motor 41, it can drive the twisting component 7 to work, so that the pneumatic tube 3 produces twists. By adjusting the two independently controlled transmission sleeves 43 according to actual conditions, the pneumatic tube 3 can produce more diverse changes as a whole, further improving the accuracy of detection.

[0069] The linear movement of the transmission sleeve 43 depends on the rotation of the threaded rod 42. The threaded rod 42 rotates under the drive of the drive motor 41, thereby realizing the movement of the transmission sleeve 43 along the axis of the threaded rod 42. The transmission sleeve 43 can be assembled on the threaded rod 42 through a ball nut. This part belongs to the existing technology and will not be described in detail here. The transmission sleeve 43 is partially located inside the housing and plays a role in limiting the transmission sleeve 43 to prevent the transmission sleeve 43 from rotating along with the rotation of the threaded rod 42.

[0070] When the transmission sleeve 43 moves away from the drive motor 41, the gear 1 85 meshes with the rack 1 86 to drive the rotating shaft 84 to rotate. The rotation of the rotating shaft 84 drives the traction plate 82 to rotate. The pneumatic tube 3 passes through the traction hole 83 on the traction plate 82. When the traction plate 82 rotates, it squeezes part of the pneumatic tube 3, thereby achieving further bending.

[0071] When the transmission sleeve 43 moves toward the driving motor 41, the second gear 71 meshes with the second rack 72, thereby driving the entire fixing assembly 5 and one end of the pneumatic tube 3 fixed by the fixing assembly 5 to rotate, thereby achieving the twisting work of the pneumatic tube 3;

[0072] According to actual needs, the same pneumatic tube 3 can be bent and twisted multiple times, and the detection of resistance change and leakage of the pneumatic tube 3 is more accurate.

[0073] Example 2

[0074] like Figure 4 As shown, this embodiment further includes the following structures based on the first embodiment: the fixing assembly 5 includes a connecting plate and a conical rubber plug 51, and the connecting plate is connected to the top of the transmission sleeve 43;

[0075] A sealing groove 56 is formed on the connecting plate, and a sealing gasket is provided in the sealing groove 56 .

[0076] like Figure 4 As shown, the fixing assembly 5 further includes two extrusion plates 54 and a locking component;

[0077] The connecting plate is provided with two symmetrically arranged sliding grooves 53, and the extrusion plates 54 are slidably connected in the corresponding sliding grooves 53. The two extrusion plates 54 are adapted to move toward each other after being actuated.

[0078] The two extrusion plates 54 are butted against each other via a locking component.

[0079] like Figure 4 As shown, the locking component is a fastening bolt 55 , and threaded holes are provided in the two extrusion plates 54 .

[0080] like Figure 3 As shown, it also includes a sealing cover 6, which is connected to the bottom of the corresponding transmission sleeve 43, and the sealing cover 6 is connected to the air pump 2 through a hose;

[0081] A vent hole 52 is formed on the conical rubber plug 51 . The vent hole 52 passes through the conical rubber plug 51 and the transmission sleeve 43 . The vent hole 52 communicates with the inner cavity of the sealing cover 6 .

[0082] The working principle of this embodiment is as follows:

[0083] The pneumatic tube 3 and the fixed assembly 5 are connected by plugging. The conical rubber plug 51 is squeezed into the inner cavity of the pneumatic tube 3. At the same time, the corresponding end of the pneumatic tube 3 is inserted into the sealing groove 56 on the connecting plate. A sealing gasket is provided inside the sealing groove 56. The sealing gasket squeezes the portion of the pneumatic tube 3 inserted into the sealing groove 56 to achieve a first seal. The conical rubber plug 51 is made of rubber. After being squeezed into the inner cavity of the pneumatic tube 3, it generates a force that rebounds after deformation. The rebound force is applied to the inner cavity of the pneumatic tube 3 to form a second seal.

[0084] On this basis, the two extrusion plates 54 can also be manually pushed to move in the sliding groove 53 until the two extrusion plates 54 squeeze the contact part between the conical rubber plug 51 and the pneumatic tube 3. After squeezing, it is further ensured that the conical rubber plug 51 and the pneumatic tube 3 will not fall off due to inflation. After the position of the two extrusion plates 54 is adjusted, they are fixed by tightening bolts 55, and the two extrusion plates 54 are tightly pressed on the pneumatic tube 3 through threaded cooperation.

[0085] The specific embodiments described above further illustrate the technical problems, technical solutions and beneficial effects solved by the present invention. It should be understood that the above are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. Pneumatic tube dynamic bending detection device, characterized in that: include: Bottom plate (1); An air pump (2) mounted on the base plate (1); a bracket (9) mounted on the base plate (1); Two level adjustment assemblies (4), the level adjustment assemblies (4) are located on the top of the base plate (1), the level adjustment assemblies (4) include a driving device and a transmission sleeve (43), the transmission sleeve (43) is connected to the driving device and is suitable for being driven by the driving device to move linearly; A fixing assembly (5), the fixing assembly (5) being arranged on the corresponding transmission sleeve (43), the two fixing assemblies (5) respectively fixing one end of the pneumatic tube (3), and the air pump (2) being adapted to pass the gas through the fixing assembly (5) and into the pneumatic tube (3); A bending assembly (8) includes a vertical rotation assembly and a traction plate (82), wherein the traction plate (82) moves following the transmission sleeve (43), and the vertical rotation assembly is suitable for driving the traction plate (82) to rotate when the traction plate (82) moves to squeeze the pneumatic tube (3) fixed on the fixed assembly (5).

2. The pneumatic tube dynamic bending detection device according to claim 1, characterized in that: The driving device comprises a housing, a driving motor (41) and a threaded rod (42); The housing is connected to the top of the base plate (1), the driving motor (41) is located outside the housing, the threaded rod (42) is rotatably mounted in the housing, and the driving motor (41) is connected to the threaded rod (42) to drive the threaded rod (42) to rotate in the housing; The transmission sleeve (43) is assembled on the threaded rod (42), and the threaded rod (42) rotates to drive the transmission sleeve (43) to perform linear motion along the axial direction of the threaded rod (42).

3. The pneumatic tube dynamic bending detection device according to claim 1, characterized in that: The traction plate (82) is provided with a traction hole (83), and the pneumatic tube (3) is placed in the traction hole (83).

4. The pneumatic tube dynamic bending detection device according to claim 1, characterized in that: The vertical rotation assembly includes a connecting sleeve (81), a rotating shaft (84), a gear (85) and a rack (86), wherein the rack (86) is fixedly connected to the interior of the bracket (9), and the traction plate (82) is fixedly sleeved on the rotating shaft (84); The connecting sleeve (81) is connected to the outer peripheral surface of the transmission sleeve (43), the rotating shaft (84) is rotatably installed in the connecting sleeve (81), one end of the rotating shaft (84) extends out of the interior of the connecting sleeve (81), and the gear 1 (85) is fixedly connected to the extended end of the rotating shaft (84); The gear one (85) is meshed with the rack one (86).

5. The pneumatic tube dynamic bending detection device according to claim 1, characterized in that: The fixed component (5) is rotatably mounted on the corresponding transmission sleeve (43). A twisting component (7) is provided on the outside of the fixed component (5). The twisting component (7) is suitable for driving the fixed component (5) and the pneumatic tube (3) connected thereto to rotate.

6. The pneumatic tube dynamic bending detection device according to claim 5, characterized in that: The twisting assembly (7) includes a second gear (71) and a second rack (72), wherein the second rack (72) is connected to the bracket (9), and the second gear (71) is fixedly sleeved on the outside of the fixing assembly (5); The second gear (71) and the second rack (72) are meshed with each other.

7. The pneumatic tube dynamic bending detection device according to claim 1, characterized in that: The fixing assembly (5) includes a connecting disk and a conical rubber plug (51), wherein the connecting disk is connected to the top of the transmission sleeve (43); A sealing groove (56) is provided on the connecting disk, and a sealing gasket is provided in the sealing groove (56).

8. The pneumatic tube dynamic bending detection device according to claim 7, characterized in that: The fixing assembly (5) further includes two extrusion plates (54) and a locking component; The connecting disk is provided with two symmetrically arranged sliding grooves (53), the extrusion plates (54) are slidably connected in the corresponding sliding grooves (53), and the two extrusion plates (54) are adapted to move toward each other after being actuated; The two extrusion plates (54) are butt-jointed via a locking component.

9. The pneumatic tube dynamic bending detection device according to claim 8, characterized in that: The locking component is a fastening bolt (55), and threaded holes are provided in the two extrusion plates (54).

10. The pneumatic tube dynamic bending detection device according to claim 9, characterized in that: It also includes a sealing cover (6), the sealing cover (6) is connected to the bottom of the corresponding transmission sleeve (43), and the sealing cover (6) is connected to the air pump (2) through a hose; The conical rubber plug (51) is provided with a vent hole (52), the vent hole (52) passes through the conical rubber plug (51) and the transmission sleeve (43), and the vent hole (52) is communicated with the inner cavity of the sealing cover (6).

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