Inspection equipment for vibration-damping PVC expansion pipes

Abstract

This utility model discloses a vibration-damping PVC expansion joint inspection device, belonging to the technical field of pipeline inspection equipment. It includes a frame, with an adjusting screw and a drive assembly detachably connected to the top of the frame. The adjusting screw is connected to one end of the flexible pipe through an intermediate connecting flange, and the other end of the flexible pipe is connected to the drive assembly through a fixed flange. This utility model is equipped with an adjusting screw and a drive assembly. The adjusting screw can fix the flexible pipe, and at the same time, in conjunction with the drive assembly, it can simultaneously inspect the expansion and contraction of the flexible pipe and the rotation effect of the ball head.

Description

Technical Field

[0001] This utility model belongs to the technical field of pipeline inspection equipment, specifically relating to an inspection device for vibration-damping PVC expansion pipes. Background Technology

[0002] Vibration-isolated flexible pipes can be classified into three categories based on their materials:

[0003] 1. Vibration-Isolating Flexible Metal Hoses: Vibration-isolated flexible metal hoses are generally suitable for water supply pipes, air conditioning pipes, fire protection pipes, steam pipes, gas pipes, medical gas pipelines, etc. Features: Made of imported materials, composed of specially designed and processed corrugated pipes and metal mesh sleeves.

[0004] 2. Vibration-damping flexible rubber hose: Vibration-damping flexible rubber hoses are generally suitable for air conditioning pipes, rainwater pipes, drainage pipes, medical gas pipelines, etc. Features: Made of high-strength fiber cloth and imported rubber.

[0005] 3. Vibration-damping PVC expansion joints: Vibration-damping PVC expansion joints are used in machinery, automotive, aerospace and other fields; for example, PVC shock-absorbing pipes are used in car doors, bumpers and other parts to buffer road bumps and reduce noise caused by friction. Features: Composed of a sealing ball and expansion joint.

[0006] Existing inspection methods for seismic isolation PVC expansion joints mainly involve separately testing the expansion and contraction of the joint and the rotation effect of the ball head. Therefore, how to provide an inspection device that can simultaneously test the expansion and contraction of the joint and the rotation effect of the ball head is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0007] The main objective of this invention is to provide an inspection device for vibration-damping PVC expansion joints to solve the aforementioned technical problems. The device includes an adjusting screw and a drive assembly. The adjusting screw can fix the flexible pipe, while the drive assembly, in conjunction with the adjusting screw, can simultaneously inspect the expansion and contraction of the flexible pipe and the rotation effect of the ball joint.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] A vibration-damping PVC expansion joint testing device includes a frame, with an adjusting screw and a drive assembly detachably connected to the top of the frame. The adjusting screw is connected to one end of the flexible pipe via an intermediate connecting flange, and the other end of the flexible pipe is connected to the drive assembly via a fixed flange.

[0010] Furthermore, the adjusting screw includes a fixing plate, which is fixed to the top of the frame. A screw bracket is fixedly connected to the top of the fixing plate, and a screw is rotatably connected to the screw bracket. A hand crank is provided on the screw bracket, with one end of the hand crank passing through the screw bracket and connected to one end of the screw. A threaded hole is provided at the top of the screw bracket near the hand crank, and a locking knob is threadedly connected to the screw bracket through the threaded hole. A slider is provided on the screw, and the bottom end of the slider is slidably connected to a slide rail provided on the screw bracket. The top end of the slider is connected to one end of a flexible pipe through an intermediate connecting flange.

[0011] Furthermore, the drive assembly includes a fixed base plate and a drive motor. The fixed base plate is fixed to the top of the frame, and an arc-shaped rack is fixedly connected to the top of the fixed base plate. An arc-shaped guide rail is fixedly connected to the top of the arc-shaped rack. The arc-shaped guide rail has track grooves on both the side near the center and the side away from the center. A reducer is connected to the bottom of the drive motor, and a fixed connecting plate is provided at the bottom of the reducer. Multiple rollers are rotatably connected to the bottom of the fixed connecting plate. The rollers are slidably connected to the arc-shaped guide rail through the track grooves. The output end of the reducer passes through the fixed connecting plate and is connected to a gear. The gear meshes with the arc-shaped rack. The top of the fixed connecting plate is connected to the end of the flexible pipe away from the adjusting screw through a fixed flange.

[0012] Furthermore, the flexible pipe includes an inner pipe and an outer pipe. The outer pipe is fitted onto the outer wall of the inner pipe. Multiple sealing ring mounting grooves are provided on the outer wall of the inner pipe. Each sealing ring mounting groove contains a first sealing ring. A first inner ball joint is connected to the end of the inner pipe away from the sealing ring mounting groove. A first outer ball joint is fitted onto the outer wall of the first inner ball joint. A second sealing ring is provided between the first outer ball joint and the first inner ball joint. A first outer ball joint locking ring is fixedly connected to one end of the first outer ball joint. A first pipe connection flange is fixedly connected to the other end of the first outer ball joint. The first pipe connection flange is connected to a fixed flange. A second inner ball joint is connected to the end of the outer pipe away from the first sealing ring. A second outer ball joint is fitted onto the outer wall of the second inner ball joint. A third sealing ring is provided between the second outer ball joint and the second inner ball joint. A second outer ball joint locking ring is connected to one end of the second outer ball joint. A second pipe connection flange is connected to the other end of the second outer ball joint. The second pipe connection flange is connected to an intermediate connection flange.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] This utility model is equipped with an adjusting screw and a drive assembly. The adjusting screw can fix the flexible pipe, and at the same time, in conjunction with the drive assembly, it can simultaneously test the flexibility and ball head rotation effect of the flexible pipe. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0016] Figure 1 This is a front structural diagram of the present invention.

[0017] Figure 2 This is a top view of the structure of this utility model.

[0018] Figure 3 A schematic diagram of the front structure for adjusting the lead screw.

[0019] Figure 4 A top view of the adjustment screw structure.

[0020] Figure 5 This is a schematic diagram of the drive component.

[0021] Figure 6 This is a front view of the drive component.

[0022] Figure 7 This is a side view of the drive component.

[0023] Figure 8 This is a top view of the drive component.

[0024] Figure 9 This is a schematic diagram of a flexible pipe structure.

[0025] The components are as follows: 1-Frame, 2-Adjusting screw, 2.1-Fixing plate, 2.2-Slider, 2.3-Screw, 2.4-Locking knob, 2.5-Hand crank handle, 3-Intermediate connecting flange, 4-Flexible pipe, 4.1-First pipe connecting flange, 4.2-First outer ball head, 4.3-First outer ball head locking ring, 4.4-First inner ball head, 4.5-First sealing ring, 4.6-Second sealing ring, 4.7-Outer pipe, 4.8-Inner pipe, 4.9-Second outer ball head locking ring, 4.10-Second outer ball head, 4.11-Second pipe connecting flange, 4.12-Third sealing ring, 4.13-Second inner ball head, 5-Fixing flange, 6-Drive assembly, 6.1-Reducer, 6.2-Drive motor, 6.3-Arc-shaped guide rail, 6.4-Arc-shaped rack, 6.5-Fixing base plate, 6.6-Gear, 6.7-Roller. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] like Figures 1-9 As shown, this utility model provides a testing device for vibration-damping PVC expansion joints, including a frame 1. An adjusting screw 2 and a driving assembly 6 are detachably connected to the top of the frame 1. The adjusting screw 2 is connected to one end of a flexible pipe 4 through an intermediate connecting flange 3. The other end of the flexible pipe 4 is connected to the driving assembly 6 through a fixed flange 5. The adjusting screw 2 can test the expansion and contraction performance of the flexible pipe 4, and the driving assembly 6 can test the ball head rotation effect of the flexible pipe 4.

[0028] In this embodiment, the adjusting screw 2 includes a fixing plate 2.1, which is fixed to the top of the frame 1. A screw bracket is fixedly connected to the top of the fixing plate 2.1, and a screw 2.3 is rotatably connected to the screw bracket. A hand crank 2.5 is provided on the screw bracket, one end of which passes through the screw bracket and connects to one end of the screw 2.3. A threaded hole is provided at the top of the screw bracket near the hand crank, and a locking knob 2.4 is threadedly connected to the screw bracket through the threaded hole. A slider 2.2 is provided on the screw 2.3, and the bottom end of the slider 2.2 is slidably connected to a slide rail provided on the screw bracket. The top end of the slider 2.2 is connected to one end of the flexible pipe 4 through an intermediate connecting flange 3. The slider 2.2 can drive one end of the flexible pipe 4 to move along the screw 2. The locking knob 2.4 can lock the screw 2.3.

[0029] In this embodiment, the driving assembly 6 includes a fixed base plate 6.5 and a drive motor 6.2. The fixed base plate 6.5 is fixed to the top of the frame 1. An arc-shaped rack 6.4 is fixedly connected to the top of the fixed base plate 6.5. An arc-shaped guide rail 6.3 is fixedly connected to the top of the arc-shaped rack 6.4. The arc-shaped guide rail 6.3 has track grooves on both the side near the center and the side away from the center. A reducer 6.1 is connected to the bottom of the drive motor 6.2. A fixed connecting plate is provided at the bottom of the reducer 6.1. Multiple rollers 6.7 are rotatably connected to the bottom of the fixed connecting plate. The roller 6.7 is slidably connected to the arc-shaped guide rail 6.3 via a groove in the track. The output end of the reducer 6.1 passes through the fixed connecting plate and is connected to the gear 6.6. The gear 6.6 meshes with the arc-shaped rack 6.4. The top of the fixed connecting plate is connected to the end of the flexible pipe 4 away from the adjusting screw 2 via a fixed flange 5. The roller 6.7 can guide the drive component 6 in conjunction with the arc-shaped guide rail 6.3, and the drive component 6 will move along the arc-shaped guide rail 6.3. At the same time, the drive motor 6.2, in conjunction with the reducer 6.1, drives the gear 6.6 to rotate and move along the arc-shaped rack 6.4.

[0030] In this embodiment, the flexible pipe 4 includes an inner pipe 4.8 and an outer pipe 4.7. The outer pipe 4.7 is fitted onto the outer wall of the inner pipe 4.8. Multiple sealing ring mounting grooves are provided on the outer wall of the inner pipe 4.8, and a first sealing ring 4.5 is installed in each of these grooves. A first inner ball joint 4.4 is connected to the end of the inner pipe 4.8 away from the sealing ring mounting groove. A first outer ball joint 4.2 is fitted onto the outer wall of the first inner ball joint 4.4. A second sealing ring 4.6 is provided between the first outer ball joint 4.2 and the first inner ball joint 4.4. A first outer ball joint locking ring 4.3 is fixedly connected to one end of the first outer ball joint 4.2, and a first pipe connection flange 4.1 is fixedly connected to the other end of the first outer ball joint 4.2. The first pipe connection flange 4.1 is connected to a fixed flange 5. The outer tube 4.7, at the end furthest from the first sealing ring 4.5, is connected to a second inner ball head 4.13. A second outer ball head 4.10 is fitted onto the outer wall of the second inner ball head 4.13. A third sealing ring 4.12 is provided between the second outer ball head 4.10 and the second inner ball head 4.13. A second outer ball head locking ring 4.9 is connected to one end of the second outer ball head 4.10, and a second pipe connecting flange 4.11 is connected to the second outer ball head 4.11. The second pipe connecting flange 4.11 is connected to the intermediate connecting flange 3. The first inner ball head 4.4 and the first outer ball head 4.2 rotate relative to each other, and the second inner ball head 4.13 and the second outer ball head 4.10 rotate relative to each other. The first outer ball head locking ring 4.3 and the second outer ball head locking ring 4.9 are used to limit the rotation angle.

[0031] Working principle: In use, the flexible pipe 4 (i.e., the vibration-damping PVC expansion pipe) is fixed to the middle connecting flange 3 on one side of the outer pipe 4.7. The middle connecting flange 3 is connected to the adjusting screw 2. The hand crank 2.5 is turned using the adjusting screw 2.3, which drives the slider 2.2 and one end of the flexible pipe 4 to be adjusted to the appropriate position. Then, the screw 2.3 is locked by the locking knob 2.4. The flexible pipe 4 (i.e., the vibration-damping PVC expansion pipe) is then fixed to the fixed flange 5 on one side of the inner pipe 4.8. The fixed flange 5 is connected to the drive assembly 6. After the drive assembly 6 is turned on, the drive motor 6 drives the inner tube 4.8 end of the flexible pipe 4 (i.e., the vibration-damping PVC expansion pipe) to move along the arc-shaped guide rail 6.3. During the movement, the inner tube 4.8 and the outer tube 4.7 of the flexible pipe 4 (i.e., the vibration-damping PVC expansion pipe) move relative to each other, the first inner ball head 4.4 and the first outer ball head 4.2 rotate relative to each other, and the second inner ball head 4.13 and the second outer ball head 4.10 rotate relative to each other. Thus, the expansion and contraction of the flexible pipe 4 (i.e., the vibration-damping PVC expansion pipe) and the ball head rotation effect can be tested simultaneously.

[0032] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0033] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An isolated seismic PVC expansion joint inspection apparatus, characterized by, The frame (1) includes an adjusting screw (2) and a drive assembly (6) detachably connected to the top of the frame (1). The adjusting screw (2) is connected to one end of a flexible pipe (4) via an intermediate connecting flange (3), and the other end of the flexible pipe (4) is connected to the drive assembly (6) via a fixed flange (5).

2. The shock isolation PVC bellows inspection apparatus of claim 1, wherein, The adjusting screw (2) includes a fixing plate (2.1), which is fixed to the top of the frame (1). A screw bracket is fixedly connected to the top of the fixing plate (2.1). A screw (2.3) is rotatably connected to the screw bracket. A hand crank (2.5) is provided on the screw bracket. One end of the hand crank (2.5) passes through the screw bracket and is connected to one end of the screw (2.3). A threaded hole is provided at the top of the screw bracket near the hand crank. A locking knob (2.4) is threadedly connected to the screw bracket through the threaded hole. A slider (2.2) is provided on the screw (2.3). The bottom end of the slider (2.2) is slidably connected to a slide rail provided on the screw bracket. The top end of the slider (2.2) is connected to one end of the flexible pipe (4) through an intermediate connecting flange (3).

3. The shock isolation PVC expansion joint inspection apparatus of claim 1, wherein, The drive assembly (6) includes a fixed base plate (6.5) and a drive motor (6.2). The fixed base plate (6.5) is fixed to the top of the frame (1). An arc-shaped rack (6.4) is fixedly connected to the top of the fixed base plate (6.5). An arc-shaped guide rail (6.3) is fixedly connected to the top of the arc-shaped rack (6.4). The arc-shaped guide rail (6.3) has track grooves on both the side near the center and the side away from the center. A reducer (6.1) is connected to the bottom of the drive motor (6.2). The reducer (6.1) has a fixed connecting plate at its bottom end, and multiple rollers (6.7) are rotatably connected to the bottom end of the fixed connecting plate. The rollers (6.7) are slidably connected to the arc-shaped guide rail (6.3) through the track groove. The output end of the reducer (6.1) passes through the fixed connecting plate and is connected to the gear (6.6). The gear (6.6) meshes with the arc-shaped rack (6.4). The top end of the fixed connecting plate is connected to the end of the flexible pipe (4) away from the adjusting screw (2) through the fixed flange (5).

4. The shock isolation PVC bellows inspection apparatus of claim 1, wherein, The flexible pipe (4) includes an inner pipe (4.8) and an outer pipe (4.7). The outer pipe (4.7) is fitted onto the outer wall of the inner pipe (4.8). Multiple sealing ring mounting grooves are provided on the outer wall of the inner pipe (4.8). A first sealing ring (4.5) is provided in each of the sealing ring mounting grooves. A first inner ball head (4.4) is connected to the end of the inner pipe (4.8) away from the sealing ring mounting groove. A first outer ball head (4.2) is fitted onto the outer wall of the first inner ball head (4.4). A second sealing ring (4.6) is provided between the first outer ball head (4.2) and the first inner ball head (4.4). A first outer ball head locking ring (4.3) is fixedly connected to one end of the first outer ball head (4.2), and the other end of the first outer ball head (4.2) is fixedly connected to the locking ring (4.3). A first pipe connection flange (4.1) is fixedly connected to the first pipe connection flange (4.1), which is connected to the fixed flange (5). The end of the outer pipe (4.7) away from the first sealing ring (4.5) is connected to a second inner ball head (4.13). A second outer ball head (4.10) is sleeved on the outer wall of the second inner ball head (4.13). A third sealing ring (4.12) is provided between the second outer ball head (4.10) and the second inner ball head (4.13). A second outer ball head locking ring (4.9) is connected to one end of the second outer ball head (4.10), and a second pipe connection flange (4.11) is connected to the other end of the second outer ball head (4.10). The second pipe connection flange (4.11) is connected to the intermediate connection flange (3).

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