Force measurement balance mechanism of circular tube

Abstract

The utility model relates to a force-measuring balance mechanism for a circular tube, which comprises a translation plate, a lever seat is mounted on the side surface of the translation plate in an up-down moving manner, a lever is rotationally mounted on the lever seat, the lever forwards penetrates through the translation plate, and a force-applying bulge is arranged at the front end part of the lever; a supporting auxiliary assembly is mounted on the translation plate positioned below the lever, and a convex arc-shaped supporting surface of the supporting auxiliary assembly is positioned below the force application bulge of the lever; an inner support assembly is installed outside the front portion of the lever, the inner support assembly clamps an inner support of the circular pipe, along with forward movement of the translation plate, the end portion of the lever extends into the circular pipe, an outwards-protruding arc-shaped supporting face located below the lever extends into the circular pipe until the force application protrusion moves to a preset to-be-measured position of the circular pipe, and the lever seat is stressed to move upwards. The force application bulge at the end part of the lever counteracts on the inner wall surface of the to-be-tested circular tube to realize a force test, and meanwhile, the circular tube is structurally supported by the convex arc-shaped supporting surface below the force application bulge, so that the balance of the structural support of the circular tube in the test is realized, and the accuracy and the reliability of the test of a force application point are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of round tube testing equipment, in particular to a force measuring balance mechanism for a round tube. Background Art

[0002] During the production process of glass tubes and ceramic tubes, the strength and stress of the tubes need to be tested. For medical glass tubes, in order to ensure the safe storage of liquid medicine, force testing is also required at specific locations on the tube wall to ensure product quality.

[0003] In the prior art, the pipe is usually clamped and fixed by a fixing mechanism, and a force-applying rod is extended into the pipe to apply force to a preset position for testing. During the force-applying process, the force applied by the force-applying rod may easily cause the pipe to be unstable and act on the fixing mechanism, resulting in unstable clamping or even rupture at the clamping position of the pipe, thereby hindering normal force-applying testing of the pipe. Utility Model Content

[0004] In order to solve the above problems, the present application provides a force measurement balancing mechanism for a circular tube with a reasonable structure, so as to achieve a balance of structural support for the circular tube during the test, and help to ensure the accuracy and reliability of the force application point test.

[0005] The technical solution adopted by the utility model is as follows:

[0006] A force measuring and balancing mechanism for a circular tube comprises a translation plate, a lever seat is installed on the side of the translation plate for movement up and down, a lever is rotatably installed on the lever seat, the lever passes through the translation plate forward, and a force-applying protrusion is arranged at the front end of the lever; a supporting auxiliary component is installed on the translation plate below the lever, and an outwardly convex arc-shaped supporting surface of the supporting auxiliary component is located below the lever force-applying protrusion; an inner support component is installed on the front outside of the lever, and the inner support component clamps the circular tube.

[0007] As a further improvement of the above technical solution:

[0008] The middle part of the lever is rotatably mounted on the lever seat, a lifting plate is mounted on the lever seat, a pressure sensor is mounted on the lifting plate, and a contact of the pressure sensor is downward toward the rear end of the lever.

[0009] The lever seat is an inverted U-shaped structure, and the lever is installed between the two vertical walls of the lever seat via a rotating shaft; support blocks are installed at the ends of the two vertical walls of the lever seat below the lever, and an elastomer is installed between the top surface of the support block and the lever; the elastomer and the pressure sensor are located on the same side of the rotating shaft.

[0010] The structure of the supporting auxiliary component is as follows: it includes a supporting seat installed on the translation plate, a guide shaft is installed in the front and rear of the supporting seat, a buffer block is mounted on the guide shaft, and an elastic member is mounted on the guide shaft between the buffer block and the inner wall of the supporting seat; the end of the buffer block extends upward and out of the supporting seat, and the top of the buffer block extends toward the direction of the circular tube to form an outward convex arc-shaped supporting surface.

[0011] It also includes a supporting platform, on which a pressing assembly is installed. The pressing assembly is located above the inner supporting assembly. The pressing assembly and the inner supporting assembly are driven by the same linear power, and a pressing block of the pressing assembly presses down on the upper part of the outer wall of the circular tube.

[0012] The inner support assembly and the lower pressure assembly both include a fixed seat, in which a pressure block is installed for sliding up and down movement, and also include guide pins arranged horizontally left and right. The fixed seat is provided with a transverse long groove for the guide pins to slide forward and backward, and the pressure block is provided with an oblique long groove for the guide pins to slide and fit. The two guide pins are driven by linear power to move simultaneously.

[0013] The pressing block of the pressing assembly extends outward from the fixing seat and extends to form an inwardly concave arc structure, and the arc surface of the inwardly concave arc structure is adapted to the outer wall surface of the circular tube.

[0014] The pressing block of the inner support assembly extends downward from the fixing seat and extends to form an outwardly convex arc block, and the downwardly convex arc surface of the arc block is adapted to the inner wall surface of the circular tube.

[0015] The output end of the linear power level is connected with a push rod, the end of the push rod is installed with a guide pin in the pressing component, the bottom surface of the push rod is installed with an L-shaped support arm, and the end of the L-shaped support arm pushes and applies force to the guide pin of the inner support component.

[0016] The translation plate is driven to move forward and backward by an external horizontal power, and the lever seat on the translation plate is driven to move up and down by a vertical power.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] The utility model has a compact and reasonable structure. The inner support of the round tube is clamped by the inner support assembly. As the translation plate moves forward, the end of the lever extends into the round tube, and the convex arc-shaped supporting surface below the lever extends into the round tube until the force-applying protrusion moves to a preset position of the round tube to be tested. The lever seat is forced to move upward, and the force-applying protrusion at the end of the lever reacts on the inner wall surface of the round tube to be tested, thereby realizing force measurement test. At the same time, the convex arc-shaped supporting surface structurally supports the round tube below the force-applying protrusion, thereby realizing the balance of structural support for the round tube in the test, and helping to ensure the accuracy and reliability of the force-applying point test.

[0019] The utility model also has the following advantages:

[0020] The support block and elastic body under the lever are set, combined with the contact between the rear pressure sensor and the lever, to effectively ensure the stability of the lever, so that the lever can smoothly extend into the position to be tested in the round tube;

[0021] In the process of the convex arc-shaped supporting surface moving forward with the lever and extending into the round tube, when the front side surface of the buffer block at the lower end of the convex arc-shaped supporting surface touches the rear end surface of the round tube, the buffer block will stop moving forward, so that the convex arc-shaped supporting surface remains at the preset position at the pipe mouth of the round tube, and the lever keeps moving forward and extending into the preset position. When the front end of the lever applies force to the wall of the round tube, the convex arc-shaped supporting surface is supported at the preset pipe mouth position of the inner wall of the round tube below the lever, effectively ensuring the supporting stability of the round tube structure;

[0022] By setting the supporting auxiliary components and the pressing components, when the lever applies force, the two ends of the round tube can be structurally supported, so that the force points of the round tube are not affected;

[0023] The inner support assembly and the downward pressure assembly are driven by the same linear power, which not only effectively and reasonably utilizes the driving power, but also effectively ensures the simultaneity and consistency of the movements. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the utility model.

[0025] Figure 2 The utility model is a schematic diagram of the installation of the lever on the lever seat.

[0026] Figure 3 It is a cross-sectional view of the supporting auxiliary component of the utility model.

[0027] Figure 4 It is a structural schematic diagram of the pressing component of the utility model.

[0028] Figure 5 It is a cross-sectional view of the inner support assembly of the utility model.

[0029] Among them: 1. Linear power; 2. Support platform; 3. Down-pressing assembly; 4. Internal support assembly; 5. Support auxiliary assembly; 6. Lever; 7. Translation plate; 8. Lever seat; 9. Pressure sensor; 10. Round tube;

[0030] 30. L-shaped support arm; 31. push rod; 32. one guide pin; 33. lower pressing block; 34. lower pressing seat; 331. one oblique long groove; 332. inner concave arc structure; 341. one transverse long groove;

[0031] 41. Rod seat; 42. Spring; 43. Inner support rod; 44. Second guide pin; 45. Outer support block; 411. Vertical through slot; 412. Second horizontal long slot; 451. Arc block; 452. Second oblique long slot;

[0032] 50. convex arc-shaped supporting surface; 51. guide shaft; 52. buffer block; 53. supporting seat; 54. elastic member;

[0033] 60. Force application bulge;

[0034] 80. lifting plate; 81. rotating shaft; 82. elastic body; 83. supporting block. DETAILED DESCRIPTION

[0035] The specific implementation of the present utility model is described below in conjunction with the accompanying drawings.

[0036] like Figure 1 As shown, the force measuring and balancing mechanism of the circular tube of this embodiment includes a translation plate 7, a lever seat 8 is installed on the side of the translation plate 7 for vertical movement, a lever 6 is rotatably installed on the lever seat 8, the lever 6 passes through the translation plate 7 forward, and a force-applying protrusion 60 is arranged at the front end of the lever 6; a supporting auxiliary component 5 is installed on the translation plate 7 below the lever 6, and an outwardly convex arc-shaped supporting surface 50 of the supporting auxiliary component 5 is located below the force-applying protrusion 60 of the lever 6; an inner support component 4 is installed on the front outside of the lever 6, and the circular tube 10 is internally supported and clamped by the inner support component 4.

[0037] In this embodiment, the circular tube 10 is internally supported and clamped by the internal support assembly 4. As the translation plate 7 moves forward, the end of the lever 6 extends into the circular tube 10, and the convex arc-shaped supporting surface 50 located below the lever 6 extends into the circular tube 10 until the force-applying protrusion 60 moves to the preset test position of the circular tube 10. The lever seat 8 is forced to move upward, and the force-applying protrusion 60 at the end of the lever 6 reacts on the inner wall surface of the circular tube 10 to be tested, thereby realizing the force measurement test. At the same time, the convex arc-shaped supporting surface 50 provides structural support to the circular tube 10 below the force-applying protrusion 60, thereby achieving structural support balance for the circular tube 10 under test.

[0038] The middle part of the lever 6 is rotatably mounted on the lever seat 8 , a lifting plate 80 is mounted on the lever seat 8 , a pressure sensor 9 is mounted on the lifting plate 80 , and a contact of the pressure sensor 9 is downwardly directed toward the rear end of the lever 6 .

[0039] like Figure 2 As shown, the lever seat 8 is an inverted U-shaped structure, and the lever 6 is rotatably installed between the two vertical walls of the lever seat 8 via the rotating shaft 81 to realize the rotatable installation of the lever 6; support blocks 83 are installed at the ends of the two vertical walls of the lever seat 8 located below the lever 6, and an elastomer 82 is installed between the top surface of the support block 83 and the lever 6; the elastomer 82 and the pressure sensor 9 are located on the same side of the rotating shaft 81.

[0040] In this embodiment, by disposing the support block 83 and the elastic body 82 below the lever 6 and combining the contact between the rear pressure sensor 9 and the lever 6, the stability of the lever 6 is effectively guaranteed, so that the lever 6 can smoothly extend into the position to be measured in the circular tube 10.

[0041] Of course, the elastic body 82 can be mounted on the support block 83 via a vertical pin to achieve and ensure the installation and use of the elastic body 82.

[0042] like Figure 3 As shown, the structure of the support auxiliary component 5 is: it includes a support seat 53 installed on the translation plate 7, a guide shaft 51 is installed in the front and rear of the support seat 53, a buffer block 52 is mounted on the guide shaft 51, and an elastic member 54 is mounted on the guide shaft 51 between the buffer block 52 and the inner wall of the support seat 53; the end of the buffer block 52 extends upward and out of the support seat 53, and the top of the buffer block 52 extends toward the direction of the circular tube 10 to form an outward convex arc-shaped support surface 50.

[0043] In the process of the convex arc-shaped supporting surface 50 moving forward with the lever 6 and extending into the circular tube 10, when the front side surface of the buffer block 52 at the lower end of the convex arc-shaped supporting surface 50 touches the rear end surface of the circular tube 10, the buffer block 52 will stop moving forward, so that the convex arc-shaped supporting surface 50 remains at the preset position at the pipe mouth of the circular tube 10, and the lever 6 keeps moving forward and extending into the preset position, and the elastic member 54 is compressed and stores energy in the process; when the front end of the lever 6 applies force to the wall of the circular tube 10, the convex arc-shaped supporting surface 50 is supported at the preset pipe mouth position on the inner wall of the circular tube 10 below the lever 6, effectively ensuring the supporting stability of the circular tube 10 structure.

[0044] It also includes a supporting platform 2, on which a pressing assembly 3 is installed. The pressing assembly 3 is located above the inner supporting assembly 4. The pressing assembly 3 and the inner supporting assembly 4 are driven by the same linear power 1. The pressing block 33 of the pressing assembly 3 is pressed down on the upper part of the outer wall of the circular tube 10.

[0045] In this embodiment, the inner support assembly 4 and the downward pressing assembly 3 are driven by the same linear power 1, which not only effectively and reasonably utilizes the driving power, but also effectively ensures the simultaneity and consistency of the actions.

[0046] like Figure 4 and Figure 5 As shown, the inner support assembly 4 and the lower pressure assembly 3 both include a fixed seat, a pressure block is slidably installed in the fixed seat, and also include guide pins horizontally arranged left and right. The fixed seat is provided with a transverse long groove for the guide pin to slide back and forth, and the pressure block is provided with an oblique long groove for the guide pin to slide and fit. The two guide pins are driven by a linear power 1 to move simultaneously; as the guide pins move, the guide pins move in the transverse long groove relative to the fixed seat, and the guide pins move in the oblique long groove relative to the pressure block, driving the pressure block to move up or down relative to the fixed seat.

[0047] The oblique long groove on the pressing block can be opened to be inclined upward or downward according to the actual design and action requirements. Under the same movement of the guide pin, the oblique long groove inclined upward or downward will guide the pressing block to move upward or downward.

[0048] In this embodiment, the action states of the inner support component 4 and the downward pressure component 3 on the circular tube 10 are opposite; when a larger test force needs to be applied to the circular tube 10, for example, when a destructive test force is applied to the circular tube 10, the inner support component 4 unlocks the support tube, and the downward pressure component 3 applies downward pressure to the circular tube 10, combined with the synchronous action of the supporting auxiliary component 5 at the other end of the circular tube 10, to maintain the structural balance of the circular tube 10 during the test; in other cases, the inner support component 4 internally supports and clamps the circular tube 10, and the downward pressure component 3 can be detached from the circular tube 10.

[0049] In this embodiment, the inner support assembly 4 and the pressing assembly 3 are configured as similar transmission and action structures, so that the consistency of the actions can be effectively and reliably maintained under the drive of the same linear force 1.

[0050] The pressing block of the pressing assembly 3 extends outward from the fixing seat and extends to form an inwardly concave arc structure 332 , and the arc surface of the inwardly concave arc structure 332 is adapted to the outer wall surface of the circular tube 10 .

[0051] The pressing block of the inner support assembly 4 extends downward from the fixing seat and extends to form an outwardly convex arc block 451 , and the downwardly convex arc surface of the arc block 451 is adapted to the inner wall surface of the circular tube 10 .

[0052] The horizontal output end of the linear power 1 is connected with a push rod 31, and the end of the push rod 31 is installed with a guide pin in the pressing component 3. The bottom surface of the push rod 31 is installed with an L-shaped support arm 30, and the end of the L-shaped support arm 30 pushes and applies force to the guide pin of the inner support component 4 to achieve a one-drive-two action.

[0053] exist Figure 4 In the shown embodiment, the structure of the pressing assembly 3 can be: including a push rod 31 connected to the horizontal output end of the linear power 1, and a guide pin 32 is installed on the left and right ends of the push rod 31; it also includes a pressing seat 34 installed on the external platform, and a pressing block 33 is installed in the pressing seat 34 for sliding up and down. The end of the push rod 31 extends into the pressing block 33, and the pressing block 33 is provided with an oblique long groove 331 for slidingly fitting the guide pin 32, and the pressing seat 34 is provided with a horizontal long groove 341 for slidingly fitting the guide pin 32; the end of the pressing block 33 extends with an inwardly concave arc structure 332 extending outward from the pressing seat 34; as the pressing block 33 descends, the inwardly concave arc structure 332 will descend close to and contact the outer wall surface of the circular tube 10.

[0054] exist Figure 5In the shown embodiment, the structure of the inner support assembly 4 can be: it includes a rod seat 41, an inner support rod 43 is slidably installed in the rod seat 41, one end of the inner support rod 43 extends out of the rod seat 41, and a guide pin 44 is installed at the other end of the inner support rod 43, and a spring 42 is installed between the inner support rod 43 and the rod seat 41; a vertical through groove 411 is provided on the rod seat 41, an outer support block 45 is installed in the vertical through groove 411, the outer support block 45 is provided with an oblique long groove 452 for the guide pin 44 to slide and fit, and a horizontal long groove 412 for the guide pin 44 to slide and fit is provided on the rod seat 41, the bottom end of the outer support block 45 extends downward from the vertical through groove 411 and is equipped with an arc block 451, as the outer support block 45 descends, the arc block 451 will descend and support the inner wall surface of the circular tube 10; the L-shaped support arm 30 is facing the outer end of the inner support rod 43.

[0055] The translation plate 7 is driven by an external horizontal power to move forward and backward, and the lever seat 8 on the translation plate 7 is driven by a vertical power to move up and down.

[0056] In this embodiment, by setting the supporting auxiliary component 5 and the pressing component 3, when the lever 6 applies force, the two ends of the circular tube 10 can be structurally auxiliary supported so that the force points of the circular tube 10 are not affected. It is particularly suitable for situations such as destructive force testing where a large test force needs to be applied to the circular tube 10.

[0057] The usage of the utility model is:

[0058] The circular tube 10 arranged horizontally axially front and back is clamped and fixed by the inner support component 4, the lever 6 and the supporting auxiliary component 5 move forward with the translation plate 7, and the front end of the lever 6 and the convex arc-shaped supporting surface 50 extend into the interior of the circular tube 10; the lever 6 moves upward with the lever seat 8 under the action of external vertical power, the front end of the lever 6 is restricted by the circular tube 10, the force-applying protrusion 60 at the front end of the lever 6 reacts on the wall surface of the circular tube 10, and the rear end of the lever 6 acts on the pressure sensor 9; in the process of the circular tube 10 being subjected to force, the convex arc-shaped supporting surface 50 of the supporting auxiliary component 5 contacts and supports the lower part of the rear end of the inner wall surface of the circular tube 10.

[0059] In the destructive force test, considering the large applied force, the concave arc structure 332 in the downward pressing component 3 above the inner support component 4 can be pressed down to contact the upper front end of the outer wall of the circular tube 10, thereby achieving structural support for the circular tube 10 during the test, so as to ensure the balance and stability of the circular tube 10 during the test and meet and guarantee the destructive force test.

[0060] The utility model is easy to operate, and while applying force to the inner wall of the round tube 10 via a lever, balance of structural support is achieved for the round tube under test, thereby helping to ensure accuracy and reliability of force application point testing.

[0061] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0062] The above description is an explanation of the utility model, not a limitation of the utility model. The scope of the utility model is defined by the claims. Any form of modification can be made within the protection scope of the utility model.

Claims

1. A force measuring and balancing mechanism for a circular tube, comprising a translation plate (7), Features: A lever seat (8) is installed on the side of the translation plate (7) so as to move up and down, and a lever (6) is rotatably installed on the lever seat (8). The lever (6) passes through the translation plate (7) forward, and a force-applying protrusion (60) is arranged at the front end of the lever (6); a supporting auxiliary component (5) is installed on the translation plate (7) below the lever (6), and an outwardly convex arc-shaped supporting surface (50) of the supporting auxiliary component (5) is located below the force-applying protrusion (60) of the lever (6); an inner support component (4) is installed on the front outside of the lever (6), and the inner support component (4) internally supports and clamps the round tube (10).

2. The force balancing mechanism for a round tube as claimed in claim 1, Features: The middle part of the lever (6) is rotatably mounted on the lever seat (8), a lifting plate (80) is mounted on the lever seat (8), a pressure sensor (9) is mounted on the lifting plate (80), and a contact of the pressure sensor (9) is downwardly directed toward the rear end of the lever (6).

3. The force measuring and balancing mechanism for a round tube as claimed in claim 2, Features: The lever seat (8) is an inverted U-shaped structure, and the lever (6) is rotatably installed between the two vertical walls of the lever seat (8) via a rotating shaft (81); support blocks (83) are installed at the ends of the two vertical walls of the lever seat (8) below the lever (6), and an elastic body (82) is installed between the top surface of the support block (83) and the lever (6); the elastic body (82) and the pressure sensor (9) are located on the same side of the rotating shaft (81).

4. The force measuring and balancing mechanism for a round tube as claimed in claim 1, Features: The structure of the supporting auxiliary component (5) is as follows: it comprises a supporting seat (53) installed on the translation plate (7), a guide shaft (51) is installed in the supporting seat (53) at the front and rear, a buffer block (52) is mounted on the guide shaft (51), and an elastic member (54) is mounted on the guide shaft (51) between the buffer block (52) and the inner wall surface of the supporting seat (53); the end of the buffer block (52) extends upward out of the supporting seat (53), and the top end of the buffer block (52) extends toward the direction of the circular tube (10) to form an outwardly convex arc-shaped supporting surface (50).

5. The force measuring and balancing mechanism for a round tube as claimed in claim 1, Features: The invention also comprises a supporting platform (2), a pressing assembly (3) is installed on the supporting platform (2), the pressing assembly (3) is located above the inner supporting assembly (4), the pressing assembly (3) and the inner supporting assembly (4) are driven by the same linear power (1), and the pressing block (33) of the pressing assembly (3) is pressed down on the upper part of the outer wall of the circular tube (10).

6. The force measuring and balancing mechanism for a round tube as claimed in claim 5, Features: The inner support assembly (4) and the lower pressure assembly (3) both include a fixed seat, a pressure block is slidably installed in the fixed seat, and also include guide pins arranged horizontally on the left and right. The fixed seat is provided with a transverse long groove for the guide pins to slide forward and backward, and the pressure block is provided with an oblique long groove for the guide pins to slide. The two guide pins are driven by a linear power (1) to move simultaneously.

7. The force measuring and balancing mechanism for a round tube as claimed in claim 6, Features: The pressing block of the pressing assembly (3) extends outward from the fixing seat and extends to form an inwardly concave arc-shaped structure (332), and the arc-shaped surface of the inwardly concave arc-shaped structure (332) is adapted to the outer wall surface of the circular tube (10).

8. The force measuring and balancing mechanism for a round tube as claimed in claim 6, Features: The pressing block of the inner support assembly (4) extends downward from the fixing seat and extends to form an outwardly convex arc block (451), and the downwardly convex arc surface of the arc block (451) is adapted to the inner wall surface of the circular tube (10).

9. The force measuring and balancing mechanism for a round tube as claimed in claim 6, Features: The horizontal output end of the linear power (1) is connected to a push rod (31), the end of the push rod (31) is installed with a guide pin in the pressing component (3), the bottom surface of the push rod (31) is installed with an L-shaped support arm (30), and the end of the L-shaped support arm (30) pushes and applies force to the guide pin of the inner support component (4).

10. The force measuring and balancing mechanism for a round tube as claimed in claim 1, Features: The translation plate (7) is driven by an external horizontal power to move forward and backward, and the translation plate (7) is driven by a vertical power to drive a lever seat (8) to move up and down.

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