Stretching device for halogen-free low-odor flame-retardant corrugated pipe detection

Abstract

The utility model relates to the field of corrugated pipe detection, and discloses a stretching device for halogen-free low-odor flame-retardant corrugated pipe detection, which comprises a base, the left side and the right side of the surface of the upper end of the base are respectively provided with a sliding disc and a moving disc in a sliding manner, and the inward sides of the sliding disc and the moving disc are respectively provided with four fixing assemblies which are distributed in a circumferential manner. A movable seat is slidably mounted on the left side of the surface of the upper end of the base, a hydraulic rod is mounted in the center of the movable seat, a push rod of the hydraulic rod is fixed to a sliding disc, fixing assemblies are arranged on the movable disc and the sliding disc, and the positions of the fixing assemblies can be correspondingly adjusted according to needs; the supporting arc plate in the fixing assembly can make contact with the inner wall of the corrugated pipe all the time, the corrugated pipe fixing device is suitable for fixing corrugated pipes of different sizes, the structure is simple, and operation is convenient.

Description

Technical Field

[0001] The utility model relates to the field of corrugated pipe detection, in particular to a stretching device for detecting halogen-free, low-odor, flame-retardant corrugated pipes. Background Art

[0002] Halogen-free, low-odor, flame-retardant bellows are a tubular elastic sensitive element with good flame retardancy and foldable corrugated sheets connected along the folding and stretching direction. They need to be tested for tensile strength after production. A tensile strength detection device for bellows production is disclosed in the Chinese utility model patent with announcement number CN217132789U, which mainly includes a tensile strength detection structure installed on the top of the main body. It fixes one end of the bellows through a moving component, so that one end of the bellows can always be fixed to the moving seat. After fixing both ends of the bellows, the control operation can show the tensile pressure parameters.

[0003] In view of the above-mentioned related technologies, the inventor believes that there are the following defects: bellows usually have a variety of different sizes. In order to fix bellows of different size parameters, the above structure needs to prepare a variety of replacement blocks of different size structures, which makes the use cost high, and when fixing bellows of different sizes, it is necessary to frequently replace different replacement blocks. For this reason, we designed a stretching device for halogen-free, low-odor, flame-retardant bellows testing. Utility Model Content

[0004] In order to solve the technical problem that it is inconvenient to fix corrugated pipes of various sizes, the utility model provides a stretching device for detecting halogen-free, low-odor, flame-retardant corrugated pipes.

[0005] The utility model is implemented by the following technical scheme: a stretching device for detecting halogen-free, low-odor, flame-retardant corrugated pipes, comprising a base, a sliding plate and a moving plate are slidably mounted on the left and right sides of the upper end surface of the base respectively, and four circumferentially distributed fixing components are mounted on the inner sides of the sliding plate and the moving plate, a moving seat is slidably mounted on the left side of the upper end surface of the base, a hydraulic rod is mounted at the center of the moving seat, and a push rod of the hydraulic rod is fixed on the sliding plate.

[0006] As a further improvement of the above scheme, a fixed plate is installed on the right side of the upper end surface of the base, and four spring telescopic rods in a circular array are installed on the left side surface of the fixed plate, and one end of the spring telescopic rod away from the fixed plate is fixed on the movable plate, and the spring telescopic rod includes a telescopic rod, a spring and a telescopic sleeve, and the spring is sleeved in the telescopic sleeve. The telescopic rod is connected to the right side of the movable plate, and the right end of the telescopic rod extends into the telescopic sleeve and is connected to the spring;

[0007] A tension sensor is arranged inside the fixed plate, and one end of the spring away from the movable plate is connected to the tension sensor. When the movable plate moves to the right, it can stretch the telescopic rod, thereby generating an equal tension on the tension sensor through the spring, which can be detected by the tension sensor.

[0008] As a further improvement of the above scheme, the fixing assembly includes an installation slider, and an installation arc plate and a support arc plate are respectively welded above and below the inward surface of the installation slider. A screw rod is threadedly connected to the installation arc plate, and a circular hole is opened at the end of the screw rod away from the clamping plate. A straight rod can be inserted into the circular hole to rotate the screw rod. The inner end of the screw rod is rotatably connected to the clamping plate, and one side surface of the clamping plate contacts the surface of the movable disk or the sliding disk. The screw rod can limit its rotation when rotating, and then can move it up and down. One end of the bellows is placed on the support arc plate, and the clamping plate moves downward under the action of the screw rod to clamp the bellows, thereby fixing it.

[0009] As a further improvement of the above scheme, an installation groove is provided on the inner side surface of the sliding plate, and an adjustment slide hole is formed through the inner wall of the installation groove toward the left. A screw is installed on the side of the installation slide away from the supporting arc plate, and the screw passes through the adjustment slide hole and is threadedly connected with a nut. The installation slide can move up and down along the installation groove, and then the position of the installation slide can be adjusted according to the actual size of the corrugated pipe, so that the supporting arc plate can contact the inner wall of the corrugated pipe.

[0010] As a further improvement of the above scheme, a support seat is provided under the sliding disk and the movable disk, and the support seat is in sliding contact with the upper surface of the base. The movable disk can move left and right on the base, and the left and right movement of the sliding disk can make the corrugated tube in a straight state, thereby stretching the corrugated tube.

[0011] As a further improvement of the above scheme, two symmetrically arranged adjustment grooves are provided on the upper end surface of the base, and the cross-section of the adjustment grooves is a convex-shaped structure. A slide seat with the same structure as the support seat is provided under the movable seat, and a bolt is sleeved on the slide seat. The head of the bolt is slidably placed in the adjustment groove, and a nut is threadedly connected above the bolt. Loosening the nut on the bolt can make the movable seat move left and right, and can be suitable for corrugated pipes of various different lengths.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. The utility model arranges a fixing assembly on the moving plate and the sliding plate, and the position of the fixing assembly can be adjusted accordingly as needed, so that the supporting arc plate in the fixing assembly can always contact the inner wall of the corrugated pipe, which is suitable for fixing corrugated pipes of various sizes, and has a simple structure and convenient operation;

[0014] 2. By arranging a movable plate and a sliding plate that can move left and right on the base, the design of the sliding plate makes the device suitable for corrugated pipes of various lengths. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a stretching device for detecting a halogen-free, low-odor, flame-retardant corrugated pipe provided by the utility model;

[0016] Figure 2 for Figure 1 The left and right isometric drawings;

[0017] Figure 3 for Figure 2 Side view;

[0018] Figure 4 for Figure 2 Schematic diagram of the structure of the sliding plate and the fixed assembly.

[0019] Description of main symbols:

[0020] 1. Base; 11. Adjusting slide groove; 2. Sliding plate; 21. Support seat; 22. Adjusting slide hole; 23. Installing slide groove; 3. Moving plate; 4. Fixed component; 41. Installing slider; 42. Supporting arc plate; 43. Installing arc plate; 44. Pressing plate; 45. Screw rod; 5. Fixed plate; 6. Spring telescopic rod; 7. Moving seat; 8. Hydraulic rod. DETAILED DESCRIPTION

[0021] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0022] Example:

[0023] Please combine Figure 1-Figure 4 A halogen-free, low-odor, flame-retardant corrugated pipe testing stretching device of this embodiment includes a base 1, a sliding plate 2 and a moving plate 3 are slidably installed on the left and right sides of the upper end surface of the base 1, and four circumferentially distributed fixing components 4 are installed on the inner side of the sliding plate 2 and the moving plate 3, a moving seat 7 is slidably installed on the left side of the upper end surface of the base 1, a hydraulic rod 8 is installed at the center of the moving seat 7, and a push rod of the hydraulic rod 8 is fixed on the sliding plate 2.

[0024] A fixed plate 5 is installed on the right side of the upper surface of the base 1, and four spring telescopic rods 6 in a circumferential array are installed on the left surface of the fixed plate 5. One end of the spring telescopic rod 6 away from the fixed plate 5 is fixed on the movable plate 3. The spring telescopic rod 6 includes a telescopic rod, a spring and a telescopic sleeve. The spring is sleeved in the telescopic sleeve. The telescopic rod is connected to the right side of the movable plate 3, and the right end of the telescopic rod extends into the telescopic sleeve and is connected to the spring.

[0025] A tension sensor is arranged inside the fixed plate 5, and one end of the spring away from the movable plate 3 is connected to the tension sensor. When the movable plate 3 moves to the right, it can stretch the telescopic rod, and then an equal tension can be generated on the tension sensor through the spring, which can be detected by the tension sensor.

[0026] The fixing assembly 4 includes a mounting slider 41, and a mounting arc plate 43 and a supporting arc plate 42 are welded above and below the inner side surface of the mounting slider 41, respectively. A screw rod 45 is threadedly connected to the mounting arc plate 43, and a round hole is opened at the end of the screw rod 45 away from the clamping plate 44. A straight rod can be inserted into the round hole to rotate the screw rod 45. The inner end of the screw rod 45 is rotatably connected to the clamping plate 44. One side surface of the clamping plate 44 contacts the surface of the movable disk 3 or the sliding disk 2. The screw rod 45 can limit its rotation when rotating, and then can move it up and down. One end of the bellows is placed on the supporting arc plate 42, and the clamping plate 44 moves downward under the action of the screw rod 45 to clamp the bellows, thereby fixing it.

[0027] An installation groove 23 is provided on the inner surface of the sliding disk 2, and an adjustment slide hole 22 is formed on the inner wall of the installation groove 23 to the left. A screw is installed on the side of the installation slider 41 away from the supporting arc plate 42. The screw passes through the adjusting slide hole 22 and is threadedly connected with a nut. The installation slider 41 can move up and down along the installation groove 23, and then the position of the installation slider 41 can be adjusted according to the actual size of the bellows, so that the supporting arc plate 42 can contact the inner wall of the bellows.

[0028] A support seat 21 is provided below the sliding disk 2 and the movable disk 3. The support seat 21 is in sliding contact with the upper surface of the base 1. The movable disk 3 can move left and right on the base 1, thereby stretching the corrugated tube. The left and right movement of the sliding disk 2 can put the corrugated tube in a straight state, thereby stretching the corrugated tube.

[0029] Two symmetrically arranged adjusting grooves 11 are provided on the upper end surface of the base 1, and the cross-section of the adjusting groove 11 is a convex-shaped structure. A sliding seat with the same structure as the supporting seat 21 is provided below the movable seat 7, and a bolt is sleeved on the sliding seat. The head of the bolt is slidably placed in the adjusting groove 11, and a nut is threadedly connected above it. Loosening the nut on the bolt can make the sliding plate 2 move left and right, and can be suitable for corrugated pipes of various lengths.

[0030] The implementation principle of a stretching device for halogen-free, low-odor, flame-retardant corrugated pipe testing in the embodiment of the present application is as follows: in actual use, first adjust the position of the four fixing components 4 according to the inner wall size of the corrugated pipe. Specifically, loosen the nut on the screw rod and move the mounting slider 41 outward or inward, so that the outward side of the four supporting arc plates 42 on the sliding disk 2 or the moving disk 3 can contact the inner wall of the corrugated pipe, and then tighten the nut. After that, the multiple screw rods 45 can be rotated in sequence by the straight rod. The screw rods 45 will drive the clamping plate 44 to move downward and tightly press against the outer surface of the corrugated pipe, thereby fixing the corrugated pipe. Then, adjust the position of the sliding disk 2 and the moving seat 7 according to the actual length of the corrugated pipe, and tighten the screw rod. Loosening the nut on the bolt can make the moving seat 7 move left and right. Since the sliding plate 2 is connected to the moving seat 7, the sliding plate 2 can move left and right with the moving seat 7 when the hydraulic rod 8 is not used to move, so that the bellows is in an expanded state as much as possible. Then, the nut is tightened to fix the moving seat 7. At this time, the sliding plate 2 can be moved to the left by the hydraulic rod 8. The sliding plate 2 moving to the left will put the bellows in a stretched state, thereby enabling the moving plate 3 to move to the left. When the moving plate 3 moves to the left, it can stretch the telescopic rod, and an equal leftward pulling force can be generated on the tension sensor through the spring, which can be detected by the tension sensor, thereby detecting the stretching of the bellows.

[0031] By arranging the fixing assembly 4 on the moving plate 3 and the sliding plate 2, the position of the fixing assembly 4 can be adjusted accordingly as required, so that the supporting arc plate 42 in the fixing assembly 4 can always be in contact with the inner wall of the corrugated pipe, which is suitable for fixing corrugated pipes of various sizes, and has a simple structure and convenient operation;

[0032] By arranging a movable plate 3 and a sliding plate 2 capable of moving left and right on the base 1, the design of the sliding plate 2 makes the device suitable for corrugated pipes of various lengths.

[0033] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A halogen-free, low-odor, flame-retardant corrugated pipe testing stretching device, comprising a base (1), characterized in that: A sliding plate (2) and a moving plate (3) are slidably mounted on the left and right sides of the upper end surface of the base (1), respectively, and four circumferentially distributed fixing components (4) are mounted on the inner sides of the sliding plate (2) and the moving plate (3). A moving seat (7) is slidably mounted on the left side of the upper end surface of the base (1), and a hydraulic rod (8) is mounted at the center of the moving seat (7), and a push rod of the hydraulic rod (8) is fixed on the sliding plate (2).

2. A halogen-free, low-odor, flame-retardant corrugated pipe testing stretching device as claimed in claim 1, characterized in that: A fixed plate (5) is installed on the right side of the upper surface of the base (1), and four spring telescopic rods (6) are installed on the left side surface of the fixed plate (5) in a circumferential array, and one end of the spring telescopic rod (6) away from the fixed plate (5) is fixed on the movable plate (3), and the spring telescopic rod (6) comprises a telescopic rod, a spring and a telescopic sleeve, and the spring is sleeved in the telescopic sleeve. The telescopic rod is connected to the right side of the movable plate (3), and the right end of the telescopic rod extends into the telescopic sleeve and is connected to the spring; A tension sensor is arranged inside the fixed disk (5), and one end of the spring away from the movable disk (3) is connected to the tension sensor.

3. A halogen-free, low-odor, flame-retardant corrugated pipe testing stretching device as claimed in claim 1, characterized in that: The fixing assembly (4) comprises a mounting slider (41), and a mounting arc plate (43) and a supporting arc plate (42) are respectively welded above and below the inner side surface of the mounting slider (41), a screw rod (45) is threadedly connected to the mounting arc plate (43), and the inner end of the screw rod (45) is rotatably connected to a clamping plate (44).

4. A halogen-free, low-odor, flame-retardant corrugated pipe testing stretching device as claimed in claim 3, characterized in that: The sliding plate (2) is provided with a mounting slot (23) on the inner side surface thereof, and an adjusting slot hole (22) is formed through the inner wall of the mounting slot (23) toward the left, and a screw rod is installed on the side of the mounting slide block (41) away from the supporting arc plate (42), and the screw rod passes through the adjusting slot hole (22) and is threadedly connected with a nut.

5. A halogen-free, low-odor, flame-retardant corrugated pipe testing stretching device as claimed in claim 1, characterized in that: A support seat (21) is provided below the sliding plate (2) and the moving plate (3), and the support seat (21) is in sliding contact with the upper surface of the base (1).

6. A halogen-free, low-odor, flame-retardant corrugated pipe testing stretching device as claimed in claim 5, characterized in that: The upper surface of the base (1) is provided with two symmetrically arranged adjusting grooves (11), and the cross section of the adjusting grooves (11) is in a convex shape. A sliding seat having the same structure as the supporting seat (21) is arranged below the movable seat (7), and a bolt is sleeved on the sliding seat. The head of the bolt is slidably placed in the adjusting groove (11), and a nut is threadedly connected to the upper side of the bolt.

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