Bend angle measuring device for corrugated pipes

Abstract

The utility model relates to bellows detection technical field especially relates to a bellows bending angle measuring device, including base, fixed in the clamping mechanism of base one end inside and set in the push mechanism of base bottom inside, one end outside of base still fixedly be provided with oil cylinder frame, the first oil cylinder of oil cylinder frame outside installation has, the extrusion block is fixed in the first oil cylinder telescopic end, the clamping mechanism includes installation pipe, guide rod, first spring, lifting plate, spacing strip and wedge, the guide rod is clamped in the installation pipe inside, this bellows bending angle measuring device can carry out quick clamping to bellows both ends to the drive end provide certain pressure to bellows keep bending, until the oil cylinder pressure makes bellows surface crack, thereby to pressure, bending angle and displacement etc.

Description

Technical Field

[0001] This utility model relates to the field of corrugated pipe testing technology, and in particular to a device for measuring the bending angle of a corrugated pipe. Background Technology

[0002] A bellows is a cylindrical, thin-walled, pleated shell with multiple transverse corrugations. The open end is fixed, while the sealed end is free. It can generate displacement under pressure, axial force, etc., to achieve pressure measurement or volume compensation. It is suitable for measuring pressures from tens of Pascals to tens of megapascals. Common materials include metal and plastic. Metal bellows are mostly used in industrial fields, while plastic bellows are used in scenarios such as electrical wiring.

[0003] During the arrangement of corrugated pipes, some areas need to bend. This requires knowing the minimum bending radius of the corrugated pipe and ensuring that the corrugated pipes arranged within this radius range can still achieve the preset pressure resistance and impact resistance. Therefore, after the production of corrugated pipes, it is necessary to measure the bending angle that the rated length of corrugated pipes can bend. Existing measuring devices cannot quickly clamp the ends of the corrugated pipes, and it is difficult to control the constant application of pressure to the ends of the corrugated pipes to keep them in a uniform bending state. At the same time, it is impossible to make a direct and effective judgment on the bending angle. Utility Model Content

[0004] This invention addresses the shortcomings of existing technologies by providing a device for measuring the bending angle of a corrugated pipe.

[0005] This utility model is achieved through the following technical solution: A corrugated pipe bending angle measuring device includes a base, a clamping mechanism fixed to the inner side of one end of the base, and a pushing mechanism disposed on the inner side of the bottom of the base. A cylinder frame is also fixedly disposed on the outer side of one end of the base. A first cylinder is installed on the outer side of the cylinder frame. A pressing block is fixed to the telescopic end of the first cylinder. The clamping mechanism includes an installation tube, a guide rod, a first spring, a lifting plate, a limiting strip, and a wedge block. The guide rod is engaged inside the installation tube. The first spring is sleeved outside the guide rod. The lifting plate is fixedly disposed on the top of the guide rod. The limiting strip is fixedly connected to the top of one end of the lifting plate. The wedge block is fixedly disposed on the bottom end of the guide rod.

[0006] In a preferred embodiment of this utility model, the pushing mechanism includes a mounting plate fixed to one side of the base and a sliding seat movably connected to the surface of the base. A second hydraulic cylinder is fixedly mounted on the back of the mounting plate, and a contact head is fixedly mounted on the output end of the second hydraulic cylinder. A contact plate is fixedly mounted on one side of the sliding seat, and a guide ring is fixedly provided on the back of the sliding seat. A telescopic rod is inserted into the guide ring, and a handle and a tube are fixedly mounted on both ends of the telescopic rod. A second spring is also sleeved on the surface of the telescopic rod. The pushing mechanism mainly supports one end of the bellows and applies a certain pressure to it. The second hydraulic cylinder pushes the sliding seat to move, thereby changing the bending angle of the bellows and realizing the measurement of the bending angle.

[0007] In a preferred embodiment of the present invention, the second spring is disposed between the insertion tube and the inner side of the sliding seat, the insertion tube is located inside one side of the sliding seat, the handle is disposed outside one side of the sliding seat, and the insertion tube has a frustum-shaped structure. The second spring always provides a certain pressure to the insertion tube, and the frustum-shaped structure at the end of the insertion tube makes it easy to be inserted into the inside of one end of the bellows and is suitable for bellows of different sizes.

[0008] In a preferred embodiment of the present invention, the end of the contact head is an arc-shaped structure, its outer surface contacts the outer side of the contact plate, a slider is provided at the bottom of the sliding seat, and an arc-shaped guide groove is provided on the surface of the base to cooperate with it. The contact head, with its arc-shaped end, is always in contact with the contact plate, thus ensuring the pushing effect on the contact plate. The slider effectively guides the movement of the sliding seat.

[0009] In a preferred embodiment of the present invention, the top of the guide rod extends through and to the outer side of the top of the mounting tube, the bottom of the lifting plate is in contact with the surface of the mounting tube, and the first spring is located between the inner side of the mounting tube and the wedge block. In a preferred embodiment of the present invention, the telescopic end of the first hydraulic cylinder penetrates and extends into the interior of one side of the base, the mounting tube is fixed to the inner side of the base, the surface of the extrusion block is inclined, the extrusion block is disposed inside the mounting tube, and its outer inclined surface contacts the bottom inclined surface of the wedge block. The first hydraulic cylinder extends, causing the extrusion block at its end to press against the wedge plate, lifting the wedge plate and thus securing the lifting plate to the inside of one end of the bellows, achieving a fixed effect.

[0010] The beneficial effects of this utility model are: This bellows bending angle measuring device can quickly clamp both ends of the bellows and apply a certain pressure to the drive end to keep the bellows bent until the hydraulic cylinder applies pressure to crack the surface of the bellows. This allows for the measurement of data such as pressure, bending angle, and displacement, enabling a systematic and comprehensive understanding of the bellows' bending capacity for easy use. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural diagram of the bellows bending angle measuring device of this utility model. Figure 2 This is a schematic diagram of the clamping mechanism of the bellows bending angle measuring device of this utility model. Figure 3 This is a schematic diagram of the pushing mechanism of the bellows bending angle measuring device of this utility model.

[0012] In the diagram: 1. Base; 2. Cylinder frame; 3. First cylinder; 4. Extrusion block; 5. Clamping mechanism; 51. Mounting tube; 52. Guide rod; 53. First spring; 54. Lifting plate; 55. Limiting strip; 56. Wedge block; 6. Pushing mechanism; 61. Mounting plate; 62. Second cylinder; 63. Contact head; 64. Sliding seat; 65. Contact plate; 66. Guide ring; 67. Telescopic rod; 68. Handle; 69. Insertion tube; 610. Second spring. Detailed Implementation

[0013] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings, so that the advantages and features of this utility model can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of this utility model. The directional terms mentioned in this utility model, such as "up," "down," "front," "back," "left," "right," "top," and "bottom," are only for reference to the accompanying drawings. Therefore, the directional terms used are for the purpose of explaining and understanding this utility model, and not for limiting this utility model.

[0014] like Figure 1-3 The device for measuring the bending angle of a corrugated pipe shown includes a base 1, a clamping mechanism 5 fixed to the inner side of one end of the base 1, and a pushing mechanism 6 disposed on the inner side of the bottom of the base 1. A cylinder frame 2 is also fixedly disposed on the outer side of one end of the base 1. A first cylinder 3 is installed on the outer side of the cylinder frame 2. A pressing block 4 is fixed to the telescopic end of the first cylinder 3. The clamping mechanism 5 includes an installation tube 51, a guide rod 52, a first spring 53, a lifting plate 54, a limiting strip 55, and a wedge block 56. The guide rod 52 is clamped inside the installation tube 51. The first spring 53 is sleeved on the outer side of the guide rod 52. The lifting plate 54 is fixedly disposed on the top of the guide rod 52. The limiting strip 55 is fixedly connected to the top of one end of the lifting plate 54. The wedge block 56 is fixedly disposed on the bottom end of the guide rod 52.

[0015] Specifically, the pushing mechanism 6 includes a mounting plate 61 fixed to one side of the base 1 and a sliding seat 64 movably connected to the surface of the base 1. A second hydraulic cylinder 62 is fixedly mounted on the back of the mounting plate 61, and a contact head 63 is fixedly mounted on the output end of the second hydraulic cylinder 62. A contact plate 65 is fixedly mounted on one side of the sliding seat 64, and a guide ring 66 is fixedly mounted on the back of the sliding seat 64. A telescopic rod 67 is fitted inside the guide ring 66. A handle 68 and an insertion tube 69 are fixedly mounted at both ends of the telescopic rod 67, respectively. A second spring 610 is also sleeved on the surface of the telescopic rod 67. The second spring 610 is located between the insertion tube 69 and the inner side of the sliding seat 64. The insertion tube 69 is located inside one side of the sliding seat 64, and the handle 68 is located on one side of the sliding seat 64. On the outside, the insertion tube 69 has a frustum-shaped structure, the end of the contact head 63 has an arc-shaped structure, and its outer surface contacts the outside of the contact plate 65. The bottom of the sliding seat 64 is provided with a slider, and the surface of the base 1 is provided with an arc-shaped guide groove that matches it. The top of the guide rod 52 passes through and extends to the top outside of the mounting tube 51. The bottom of the lifting plate 54 is in contact with the surface of the mounting tube 51. The first spring 53 is located between the inside of the mounting tube 51 and the wedge block 56. The telescopic end of the first hydraulic cylinder 3 passes through and extends to the inside of one side of the base 1. The mounting tube 51 is fixed to the inside of the base 1. The surface of the extrusion block 4 is inclined. The extrusion block 4 is located inside the mounting tube 51, and its outer inclined surface contacts the bottom inclined surface of the wedge block 56.

[0016] In this embodiment, the corrugated pipe is first cut to the rated length, and then clamped. During clamping, the sliding seat 64 is in a horizontal state. After one end of the corrugated pipe is sleeved on the outside of the lifting plate 54, the first hydraulic cylinder 3 is driven to extend. The telescopic end of the first hydraulic cylinder 3 drives the extrusion block 4 to move forward, so that the extrusion block 4 is inclined to press the bottom inclined surface of the wedge block 56, causing the wedge block 56 to rise under pressure. The first spring 53 is compressed and contracted. Under the guidance of the guide rod 52, the lifting plate 54 rises, and the limiting strip 55 at its end is locked inside one end of the corrugated pipe. The outer side of the lifting plate 54 contacts the inner wall of the corrugated pipe, thereby achieving the clamping and fixing of one end of the corrugated pipe. The handle 68 is pulled outward, causing the insertion tube 69 to overflow. After the insertion tube 69 is locked inside the other end of the corrugated pipe, under the action of the second spring 610, the insertion tube 69 is locked inside one end of the corrugated pipe, and under the action of the second spring 610, the insertion tube 69 always maintains a certain pressure on one end of the corrugated pipe.

[0017] Furthermore, the second hydraulic cylinder 62 extends, causing its end contact head 63 to push the contact plate 65, thereby causing the sliding seat 64 to slide along the arc guide groove on the surface of the base 1 under the guidance of the bottom slider, thus bending the bellows. When the second hydraulic cylinder 62 applies pressure to the contact plate 65, the pressure is effectively measured. Under the continuous pressure of the second hydraulic cylinder 62, the bellows eventually ruptures, and the second hydraulic cylinder 62 stops extending. In this way, the maximum pressure can be measured, and the tilt angle of the side contact plate 65 of the sliding seat 64 can be measured. The displacement and bending radius of the bellows end can also be measured. Finally, through multiple sets of data, the maximum bending amount and the pressure that the bellows can withstand can be systematically understood.

[0018] It should be noted that the parts not covered in this utility model are the same as or can be implemented using existing technology; the various drives in this utility model can be implemented by corresponding power structures such as cylinders, oil cylinders, electric cylinders, and motors in conjunction with connecting rods, guide rods, etc., and are not limited to the structures described in the specification and the drawings.

[0019] In the description of the embodiments of this utility model, unless otherwise expressly specified and limited, the terms "installed," "connected," "linked," "set up," "equipped with," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A corrugated pipe bending angle measuring device, comprising a base (1), a clamping mechanism (5) fixed to the inner side of one end of the base (1), and a pushing mechanism (6) disposed on the inner side of the bottom of the base (1), characterized in that: A cylinder frame (2) is fixedly installed on the outside of one end of the base (1), and a first cylinder (3) is installed on the outside of the cylinder frame (2). A compression block (4) is fixed on the telescopic end of the first cylinder (3). The clamping mechanism (5) includes an installation tube (51), a guide rod (52), a first spring (53), a lifting plate (54), a limiting strip (55), and a wedge block (56). The guide rod (52) is clamped inside the installation tube (51), the first spring (53) is sleeved on the outside of the guide rod (52), the lifting plate (54) is fixedly set on the top of the guide rod (52), the limiting strip (55) is fixedly connected to the top of one end of the lifting plate (54), and the wedge block (56) is fixedly set on the bottom end of the guide rod (52).

2. The bellows bending angle measuring device according to claim 1, characterized in that: The pushing mechanism (6) includes a mounting plate (61) fixed to one side of the base (1) and a sliding seat (64) movably connected to the surface of the base (1). A second hydraulic cylinder (62) is fixedly mounted on the back of the mounting plate (61). A contact head (63) is fixed at the output end of the second hydraulic cylinder (62). A contact plate (65) is fixed on one side of the sliding seat (64). A guide ring (66) is fixedly provided on the back of the sliding seat (64). A telescopic rod (67) is inserted in the guide ring (66). A handle (68) and a tube (69) are fixed at both ends of the telescopic rod (67). A second spring (610) is also sleeved on the surface of the telescopic rod (67).

3. The bellows bending angle measuring device according to claim 2, characterized in that: The second spring (610) is located between the insertion tube (69) and the inner side of the sliding seat (64). The insertion tube (69) is located inside one side of the sliding seat (64), and the handle (68) is located outside one side of the sliding seat (64). The insertion tube (69) has a frustum-shaped structure.

4. The bellows bending angle measuring device according to claim 2, characterized in that: The end of the contact head (63) is an arc-shaped structure, and its outer surface contacts the outer side of the contact plate (65). The bottom of the sliding seat (64) is provided with a slider, and the surface of the base (1) is provided with an arc-shaped guide groove that matches it.

5. The bellows bending angle measuring device according to claim 1, characterized in that: The top of the guide rod (52) extends through and to the top outside of the mounting tube (51), the bottom of the lifting plate (54) is in contact with the surface of the mounting tube (51), and the first spring (53) is located between the inner side of the mounting tube (51) and the wedge block (56).

6. The bellows bending angle measuring device according to claim 1, characterized in that: The telescopic end of the first cylinder (3) extends through and into the interior of one side of the base (1). The mounting tube (51) is fixed to the inside of the base (1). The surface of the extrusion block (4) is inclined. The extrusion block (4) is located inside the mounting tube, and its outer inclined surface contacts the bottom inclined surface of the wedge block (56).

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