Pipeline detection device

Abstract

The utility model provides a pipeline detection device, and relates to the technical field of pipeline detection. The pipeline detection device comprises a mold assembly and a needle body assembly. A detection channel is arranged in the mold assembly, the shape of the detection channel corresponds to that of a standard pipeline, and the detection channel is used for accommodating a to-be-detected pipeline to detect whether the shape of the to-be-detected pipeline meets the standard or not; the needle body assembly is arranged on one side of the mold assembly, a needle hole is formed between the side wall of the mold assembly and the inner wall of the detection channel, the needle body assembly comprises a needle body, the tip end of the needle body can penetrate through the needle hole and then stretch into the detection channel, and the vertical distance between the tip end of the needle body and the inner wall of the detection channel is smaller than the thickness of the pipe wall of the pipeline to be detected. According to the pipeline detection device, the mold assembly can be used for detecting whether the shape trend of the pipeline meets the standard or not, the needle body assembly can be used for pricking the pipeline while the shape of the pipeline is detected, pricking work does not need to be conducted by independently adopting a pricking tool, the pipeline production detection efficiency is effectively improved, and consumed time is shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline detection, in particular to a pipeline detection device. Background Art

[0002] After the air conditioning pipe is formed, its shape usually needs to be inspected. The existing air conditioning pipe inspection tool has a groove extending along the direction of the air conditioning pipe. When inspecting the shape of the air conditioning pipe, the air conditioning pipe is placed in the groove, and the shape of the air conditioning pipe can be judged whether it meets the design requirements based on whether the air conditioning pipe is installed in place.

[0003] However, the existing air conditioning pipe inspection fixture can only inspect the shape and direction of the air conditioning pipe, and the inspection function is single. Since the pipe body of the air conditioning pipe usually needs to be pierced (piercing refers to piercing a process hole on the pipe body that does not penetrate the inner wall of the pipe, and the process hole is used to remove the interlayer air of the air conditioning pipe), after inspecting the shape of the air conditioning pipe, the air conditioning pipe needs to be removed from the inspection fixture groove, and then a separate piercing tool is used to pierce the air conditioning pipe, resulting in a time-consuming and inefficient production inspection process for the air conditioning pipe. Utility Model Content

[0004] The purpose of the utility model is to provide a pipeline detection device to alleviate the technical problems existing in the prior art that the existing air-conditioning pipe inspection tool can only inspect the shape and direction of the air-conditioning pipe, and the detection function is single. After inspecting the shape of the air-conditioning pipe, a separate piercing tool is required to pierce the air-conditioning pipe, resulting in a long time-consuming and low-efficiency production and inspection process of the air-conditioning pipe.

[0005] In a first aspect, the utility model provides a pipeline detection device, including a mold assembly and a needle assembly;

[0006] The mold assembly is provided with a detection channel, the shape of which corresponds to the shape of a standard pipeline, and the detection channel is used to accommodate the pipeline to be tested to detect whether the shape of the pipeline to be tested meets the standard;

[0007] The needle assembly is arranged on one side of the mold assembly, and a pinhole is provided between the side wall of the mold assembly and the inner wall of the detection channel. The needle assembly includes a needle body, and the tip of the needle body can pass through the pinhole and extend into the detection channel, and the vertical distance between the tip of the needle body and the inner wall of the detection channel is less than the wall thickness of the pipeline to be tested.

[0008] In an optional embodiment, it further includes an airtight detection component, wherein the airtight detection component includes an air supply structure;

[0009] At least one end of the detection channel is exposed, and the air supply structure includes an air supply port, which is connected to one end of the pipeline to be tested in the detection channel through the exposed pipe port of the detection channel. The air supply structure is used to introduce detection gas into the pipeline to be tested to detect whether the pipe body of the pipeline to be tested is leaking.

[0010] In an optional embodiment, the airtight detection assembly further includes a pressure detection member, and the air supply structure further includes an air return port;

[0011] The two end pipe openings of the detection channel are exposed, and the air supply port and the air return port are respectively connected to the two ends of the pipeline to be tested through the two exposed pipe openings of the detection channel;

[0012] The pressure detection components are respectively provided at the air supply port and the air return port, and the pressure detection components are used to detect the gas pressure at the positions where the pressure detection components are located.

[0013] In an optional embodiment, the needle assembly further includes a base belt and an elastic member, the needle body is multiple and the multiple needle bodies are vertically fixed on the base belt;

[0014] There are a plurality of pinholes, and the plurality of pinholes are distributed in a one-to-one correspondence with the plurality of needle bodies;

[0015] The elastic member is installed on one side of the base band, and is used to be compressed when subjected to pressure, so that the tips of the plurality of needle bodies pass through the plurality of needle holes in a one-to-one correspondence and then extend into the detection channel.

[0016] In an optional embodiment, the mold assembly includes a first mold and a second mold that are arranged opposite to each other;

[0017] A first groove is provided on a side of the first mold facing the second mold, and a second groove is provided on a side of the second mold facing the first mold. The first mold and the second mold can move closer to or away from each other, and the first groove and the second groove are used to dock to form the detection channel after the first mold and the second mold are closer to each other.

[0018] In an optional embodiment, the needle body assembly is provided on a side of the first mold away from the first groove and / or a side of the second mold away from the second groove, and the needle hole is provided between the side wall of the first mold and the bottom of the first groove, and / or between the side wall of the second mold and the bottom of the second groove.

[0019] In an optional embodiment, a driving component is further included, and the first mold and / or the second mold are connected to an output end of the driving component, and the driving component is used to drive the first mold and the second mold to move closer to or away from each other.

[0020] In an optional embodiment, it further includes a first support plate and a second support plate, wherein the first support plate is fixed to the output end of the drive assembly, and the second support plate is fixed in position and arranged parallel to the first support plate;

[0021] The first mold is fixed on the first supporting plate, and the second mold is fixed on the second supporting plate.

[0022] In an optional embodiment, the first mold and the first support plate are detachably connected, and the second mold and the second support plate are detachably connected.

[0023] In an optional embodiment, it also includes a guide rod, one of the first support plate and the second support plate is fixedly connected to the guide rod, and the other is provided with a guide hole, the guide rod is passed through the guide hole, and the guide rod is vertically distributed between the first support plate and the second support plate.

[0024] The pipeline detection device provided by the utility model comprises a mold assembly and a needle assembly; a detection channel is provided in the mold assembly, the shape of the detection channel corresponds to the shape of the standard pipeline, and the detection channel is used to accommodate the pipeline to be tested to detect whether the shape of the pipeline to be tested meets the standard; the needle assembly is arranged on one side of the mold assembly, and a pinhole is provided between the side wall of the mold assembly and the inner wall of the detection channel, and the needle assembly comprises a needle body, and the tip of the needle body can extend into the detection channel after passing through the pinhole, and the vertical spacing between the tip of the needle body and the inner wall of the detection channel is less than the wall thickness of the pipeline to be tested. The pipeline detection device provided by the utility model is used to detect pipelines such as air-conditioning pipes. During the detection process, the pipeline to be tested can be placed in the detection channel of the mold assembly. Since the shape of the detection channel corresponds to the shape of the standard pipeline, if the pipeline to be tested cannot be accurately located in the detection channel, that is, the shape trend of the pipeline to be tested cannot match the shape trend of the detection channel, it indicates that the shape of the pipeline to be tested is different from the shape of the standard pipeline, and the shape trend of the pipeline to be tested does not meet the standard. On the contrary, if the pipeline to be tested can be accurately located in the detection channel, that is, the shape and direction of the pipeline to be tested are consistent with the shape and direction of the detection channel, it indicates that the shape of the pipeline to be tested is the same as that of the standard pipeline, and the shape and direction of the pipeline to be tested meet the standard. In the process of testing pipelines such as air-conditioning pipes, the tip of the needle in the needle assembly can also be extended into the detection channel through the pinhole of the detection channel, and the vertical distance between the tip of the needle and the inner wall of the detection channel is made less than the wall thickness of the pipeline to be tested. At this time, the tip of the needle can pierce the wall of the pipeline to be tested without penetrating the inner wall of the pipeline, and the pipeline piercing operation can be achieved. Therefore, the pipeline detection device provided by the utility model can perform piercing operations on the pipeline while detecting the shape of the pipeline. There is no need to remove the pipeline from the mold assembly after the pipeline shape detection is completed, and then use a piercing tool to pierce the pipeline separately, thereby effectively improving the efficiency of pipeline production inspection and reducing the time consumption of pipeline production inspection.

[0025] Compared with the prior art, the pipeline detection device provided by the utility model can not only use the detection channel in the mold assembly to detect whether the shape and direction of the pipeline to be tested meet the standards, but also use the needle assembly to pierce the pipeline to be tested in the detection channel while detecting the shape and direction of the pipeline to be tested. There is no need to use a separate piercing tool to pierce the pipeline after detecting the shape of the pipeline, thereby effectively improving the pipeline production inspection efficiency and shortening the production inspection time. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 A schematic structural diagram of a pipeline detection device provided in an embodiment of the utility model.

[0028] Icons: 1-mold assembly; 10-pinhole; 11-first mold; 110-first groove; 12-second mold; 120-second groove; 2-needle body assembly; 3-air tightness detection assembly; 30-air supply port; 31-air return port; 4-drive assembly; 5-first support plate; 6-second support plate; 60-second limit plate; 7-guide rod; 8-stand. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] In conjunction with the accompanying drawings, some embodiments of the present invention are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0032] Example:

[0033] like Figure 1As shown, the pipeline detection device provided in this embodiment includes a mold assembly 1 and a needle assembly 2; a detection channel is provided in the mold assembly 1, the shape of the detection channel corresponds to the shape of the standard pipeline, and the detection channel is used to accommodate the pipeline to be tested to detect whether the shape of the pipeline to be tested meets the standard; the needle assembly 2 is arranged on one side of the mold assembly 1, and a needle hole 10 is provided between the side wall of the mold assembly 1 and the inner wall of the detection channel, and the needle assembly 2 includes a needle body, and the tip of the needle body can pass through the needle hole 10 and then extend into the detection channel, and the vertical distance between the tip of the needle body and the inner wall of the detection channel is less than the wall thickness of the pipeline to be tested.

[0034] The pipeline detection device provided in this embodiment is used to detect pipelines such as air-conditioning pipes. During the detection process, the pipeline to be tested can be placed in the detection channel of the mold assembly 1. Since the shape of the detection channel corresponds to the shape of the standard pipeline, if the pipeline to be tested cannot be accurately located in the detection channel, that is, the shape direction of the pipeline to be tested cannot match the shape direction of the detection channel, it indicates that the shape of the pipeline to be tested is different from the shape of the standard pipeline, and the shape direction of the pipeline to be tested does not meet the standard. On the contrary, if the pipeline to be tested can be accurately located in the detection channel, that is, the shape direction of the pipeline to be tested matches the shape direction of the detection channel, it indicates that the shape of the pipeline to be tested is the same as the shape of the standard pipeline, and the shape direction of the pipeline to be tested meets the standard.

[0035] In the process of testing pipelines such as air-conditioning pipes, the needle tip in the needle assembly 2 can also be extended into the testing channel through the pinhole 10 of the testing channel, and the vertical distance between the needle tip and the inner wall of the testing channel is smaller than the wall thickness of the pipeline to be tested. At this time, the needle tip can pierce the wall of the pipeline to be tested without penetrating the inner wall of the pipeline, so that the pipeline piercing operation can be achieved. When the pipeline is an air-conditioning pipe, the pipeline usually includes an outer rubber layer, a braided layer, and an inner rubber layer distributed in sequence from the outside to the inside. At this time, the vertical distance between the needle tip and the inner wall of the testing channel can be smaller than the sum of the thickness of the braided layer and the outer rubber layer of the pipeline to be tested.

[0036] Therefore, the pipeline inspection device provided in this embodiment can perform eye-piercing operations on the pipeline while inspecting the pipeline shape. There is no need to remove the pipeline from the mold assembly 1 after the pipeline shape inspection is completed, and then use an eye-piercing tool to eye the pipeline separately, thereby effectively improving the efficiency of pipeline production inspection and reducing the time spent on pipeline production inspection.

[0037] Compared with the prior art, the pipeline detection device provided in this embodiment can not only use the detection channel in the mold assembly 1 to detect whether the shape and direction of the pipeline to be tested meet the standards, but also use the needle assembly 2 to pierce the pipeline to be tested in the detection channel while detecting the shape and direction of the pipeline to be tested. There is no need to use a separate piercing tool to pierce the pipeline after detecting the shape of the pipeline, thereby effectively improving the pipeline production inspection efficiency and shortening the production inspection time.

[0038] Since the pipeline needs to be pierced during the production process, it is necessary to test the air tightness of the pipeline after piercing. However, the existing pipeline air tightness testing method usually removes the pipeline from the piercing tooling, then transfers the pipeline to the air tightness testing equipment, and then uses the air tightness testing equipment to test the pipeline, which further increases the time consumption of pipeline production testing and reduces the efficiency of pipeline production testing.

[0039] And as Figure 1 As shown, the pipeline detection device provided in this embodiment also includes an airtight detection component 3, which includes an air supply structure; at least one end of the detection channel is exposed, and the air supply structure includes an air supply port 30, which is connected to one end of the pipeline to be tested in the detection channel through the exposed pipe port of the detection channel, and the air supply structure is used to introduce detection gas into the pipeline to be tested to detect whether the pipe body of the pipeline to be tested is leaking.

[0040] After using the pipeline detection device provided in this embodiment to perform shape detection and eye-marking on the pipeline, the air supply port 30 of the air supply structure in the airtight detection component 3 can be directly connected to the pipeline in the detection channel through the exposed pipe port of the detection channel, and then the detection gas is introduced into the pipeline through the air supply structure to detect whether the pipeline is leaking.

[0041] It can be seen that the pipeline detection device provided in this embodiment can also use the airtight detection component 3 to perform airtight detection on the pipeline after the puncture, without removing the pipeline from the detection channel and then using the airtight detection equipment alone to perform airtight detection on the pipeline, thereby further reducing the time consumption of pipeline production detection.

[0042] Therefore, the pipeline detection device provided in this embodiment not only has the pipeline shape inspection function and the eye-catching function, but also has the air tightness detection function, which can effectively shorten the pipeline production inspection time and improve the pipeline production inspection efficiency.

[0043] It should be noted that when the air supply structure is used to test the air tightness of the pipeline in the detection channel, the inner wall of the mold assembly 1 or a sealing plug can be used to block the pipe mouth of the pipeline away from the gas supply port 30, or the pipe mouth of the pipeline away from the gas supply port 30 can be connected to the gas supply structure to form a gas circuit, and then when the gas supply structure supplies the detection gas to the pipeline, it can be judged by the smell or color of the gas whether the pipeline is leaking.

[0044] Alternatively, when the pipe opening of the pipeline away from the air supply port 30 is connected to the air supply structure, the air pressure at various locations in the pipeline can also be detected, and whether the pipeline is leaking can be determined by observing whether the air pressure at various locations in the pipeline is equal.

[0045] In order to improve the accuracy of air tightness detection and prevent environmental pollution, the air tightness detection method of the pipeline in this embodiment preferably adopts the above-mentioned air pressure detection method. Specifically, the air tightness detection component 3 can also include a pressure detection component, and the air supply structure also includes a return air port 31; the two end pipe openings of the detection channel are exposed, and the air supply port 30 and the return air port 31 are respectively connected to the two ends of the pipeline to be tested through the two exposed pipe openings of the detection channel; pressure detection components are respectively provided at the air supply port 30 and the return air port 31, and the pressure detection components are used to detect the gas pressure at their locations.

[0046] The pressure detection element may be a pressure sensor, a pressure gauge or other pressure detector.

[0047] Furthermore, the airtight detection component 3 may also include a controller and an information display. The pressure detection device and the alarm are both connected to the controller. The controller is used to receive the detection information of the pressure detection device and determine whether the pipeline is leaking based on the detection information; the controller can also control the information display to display corresponding judgment information based on the judgment result. For example, the information display can be a signal light. When the judgment result is no leakage, the controller controls the green light of the information display to light up; when the judgment result is leakage, the controller controls the red light of the information display to light up.

[0048] In an embodiment, the needle assembly 2 may further include a base band and an elastic member, wherein there are multiple needle bodies and the multiple needle bodies are vertically fixed on the base band; there are multiple pinholes 10, and the multiple pinholes 10 are distributed one-to-one with the multiple needle bodies; the elastic member is installed on one side of the base band, and the elastic member is used to be compressed when subjected to pressure, so that the tips of the multiple needle bodies pass through the multiple pinholes 10 one-to-one and extend into the detection channel.

[0049] When there is no pipeline to be tested in the detection channel or the pipeline to be tested is placed in the detection channel in the initial stage, the elastic member is in the original state, and the tip of the needle body can be flush with the inner wall of the detection channel or located in the pinhole 10 on the detection channel.

[0050] When the shape of the pipeline to be tested is qualified, the piercing operation can be performed. When piercing, a thrust can be applied to the base belt or the mold assembly 1 to bring the base belt and the mold assembly 1 closer to each other, at which time the elastic member is compressed and shortened, and the tips of the multiple needle bodies will pass through the multiple needle holes 10 one by one and then extend into the detection channel.

[0051] It can be seen that the elastic member can play a supporting role between the base belt and the mold assembly 1, so that the needle tip in the needle assembly 2 does not enter the detection channel, thereby preventing the needle from affecting the pipeline shape detection process.

[0052] The elastic member may be a retractable structure with good elasticity such as a spring or a rubber pad.

[0053] like Figure 1 As shown, the mold assembly 1 includes a first mold 11 and a second mold 12 arranged opposite to each other; a first groove 110 is provided on a side of the first mold 11 facing the second mold 12, and a second groove 120 is provided on a side of the second mold 12 facing the first mold 11. The first mold 11 and the second mold 12 can move closer to or away from each other, and the first groove 110 and the second groove 120 are used to dock the first mold 11 and the second mold 12 after they are close to each other to form a detection channel.

[0054] When the mold assembly 1 is formed by combining the first mold 11 and the second mold 12, the convenience of the pipeline to be tested entering and exiting the detection channel can be improved, thereby improving the convenience of using the pipeline detection device.

[0055] It should be noted that in order to make the shape of the detection channel formed after the first groove 110 and the second groove 120 are connected to correspond to the shape of the standard pipeline, the shape direction of the first groove 110 and the shape direction of the second groove 120 must correspond to the shape direction of the standard pipeline.

[0056] It should also be noted that when the shape of the first groove 110 and the shape of the second groove 120 both correspond to the shape of the standard pipeline, one of the first groove 110 and the second groove 120 can be used to detect whether the shape of the pipeline to be tested is standard.

[0057] Correspondingly, when the pipeline detection device is used to detect the pipeline to be tested, the pipeline to be tested can be placed in the first groove 110 or the second groove 120, and then the shape of the pipeline to be tested can be judged whether it is standard by observing whether it matches the first groove 110 or the second groove 120; if it is standard, the first mold 11 and the second mold 12 can continue to be driven closer to each other until the first groove 110 and the second groove 120 are docked to form a detection channel and the pipeline to be tested is stably located in the detection channel; then the baseband and the mold assembly 1 are pushed closer to each other, so that the tip of the needle body passes through the needle hole 10 and enters the detection channel to pierce the pipeline to be tested; after the piercing is completed, the air supply port 30 and the air return port 31 of the air supply structure are respectively connected to the two ends of the pipeline to be tested through the two exposed pipe ports of the detection channel, and then the air supply structure is started, and the detection gas is supplied to the pipeline to be tested by the air supply structure. At this time, by comparing and judging the detection results of the pressure detection components at the air supply port 30 and the air return port 31, it can be judged whether the pipeline to be tested is leaking.

[0058] After the pipeline is subjected to shape inspection, piercing and air tightness inspection in turn according to the above process, the air supply structure can be closed and the first mold 11 and the second mold 12 can be moved away from each other, and then the pipeline can be taken out of the inspection channel to carry out the inspection and piercing process of the next pipeline.

[0059] It should be noted that the mold assembly 1 can be made according to the shape and size of the pipeline to be tested, and the same model of mold assembly 1 is used to test the same model of pipeline. For example, when the pipeline to be tested is a special-shaped pipe, the shape of the detection channel in the mold assembly 1 must also be a special shape. When testing different models of pipelines, different models of mold assemblies 1 can be made. During the testing process, the mold assembly 1 of the corresponding model can be assembled with the needle assembly 2 and the airtight detection assembly 3 according to the model of the pipeline to be tested.

[0060] In this embodiment, a needle assembly 2 is provided on the side of the first mold 11 away from the first groove 110 or the side of the second mold 12 away from the second groove 120, or, in order to improve the efficiency of the eye-catching operation, a needle assembly 2 is provided on the side of the first mold 11 away from the first groove 110 and the side of the second mold 12 away from the second groove 120. Correspondingly, a needle hole 10 is provided between the side wall of the first mold 11 and the bottom of the first groove 110 or between the side wall of the second mold 12 and the bottom of the second groove 120, or, a needle hole 10 is provided between the side wall of the first mold 11 and the bottom of the first groove 110 and between the side wall of the second mold 12 and the bottom of the second groove 120.

[0061] When the first mold 11 and the second mold 12 move toward or away from each other, the needle assembly 2 on one side of the first mold 11 and the needle assembly 2 on the second mold 12 can also move accordingly to perform subsequent eye-piercing operations.

[0062] like Figure 1 As shown, the pipeline detection device provided in this embodiment also includes a driving component 4, and the first mold 11 and / or the second mold 12 are connected to the output end of the driving component 4, and the driving component 4 is used to drive the first mold 11 and the second mold 12 to move closer to or away from each other.

[0063] The driving component 4 can replace manual driving to move the first mold 11 and the second mold 12 closer to or away from each other, which can not only improve the ease of use of the pipeline detection device, but also further improve the working efficiency of the pipeline detection device. At the same time, it can also improve the docking accuracy and stability between the first mold 11 and the second mold 12.

[0064] The driving component 4 may be a telescopic device such as an electric push rod, a pneumatic cylinder, or an oil cylinder. In this embodiment, the preferred driving device is a pneumatic cylinder.

[0065] like Figure 1 As shown, the pipeline detection device provided in this embodiment may also include a first support plate 5 and a second support plate 6, the first support plate 5 is fixed to the output end of the driving assembly 4, the second support plate 6 is fixed in position and arranged parallel to the first support plate 5; the first mold 11 is fixed on the first support plate 5, and the second mold 12 is fixed on the second support plate 6.

[0066] The first support plate 5 and the second support plate 6 can not only respectively provide support for the first mold 11 and the second mold 12 , but also improve the use stability of the first mold 11 and the second mold 12 .

[0067] Furthermore, the needle assembly 2 on one side of the first mold 11 may be disposed on the first support plate 5 , and the needle assembly 2 on one side of the second mold 12 may be disposed on the second support plate 6 .

[0068] The first support plate 5 and the second support plate 6 can be distributed up and down, and the first support plate 5 is located above the second support plate 6. Correspondingly, the first mold 11 and the second mold 12 are also distributed up and down. The first mold 11 and the second mold 12 are distributed up and down, which makes it easy to place the pipeline to be tested in the second mold 12 below to detect whether its shape meets the standard.

[0069] In addition, if Figure 1As shown, the shapes of the first mold 11 and the second mold 12 can both be strip-shaped, and the directions of the first mold 11 and the second mold 12 are consistent with the directions of the standard pipeline. At this time, the first support plate 5 can also be provided with a plurality of first limit plates spaced apart along the extension direction of the first mold 11, and the plurality of first limit plates are used to abut against the side wall of the first mold 11, and at least two first limit plates are respectively located on both sides of the first mold 11; correspondingly, the second support plate 6 can also be provided with a plurality of second limit plates 60 spaced apart along the extension direction of the second mold 12, and the plurality of second limit plates 60 are used to abut against the side wall of the second mold 12, and at least two second limit plates 60 are respectively located on both sides of the second mold 12.

[0070] The first limiting plate can further improve the installation stability of the first mold 11 on the first support plate 5 , and the second limiting plate 60 can further improve the installation stability of the second mold 12 on the second support plate 6 .

[0071] In this embodiment, the first mold 11 is detachably connected to the first support plate 5 , and the second mold 12 is detachably connected to the second support plate 6 .

[0072] The detachable connection method can improve the convenience of installation and removal of the first mold 11 and the second mold 12, thereby facilitating replacement of the first mold 11 and the second mold 12 of corresponding models according to different models of pipelines.

[0073] The above-mentioned detachable connection can be achieved by screw connection, clamping or magnetic attraction. In order to improve the stability of the first mold 11 and the second mold 12, in this embodiment, the first mold 11 and the first support plate 5 are preferably connected by screws, and the second mold 12 and the second support plate 6 are also connected by screws.

[0074] like Figure 1 As shown, the pipeline detection device provided in this embodiment may also include a guide rod 7, one of the first support plate 5 and the second support plate 6 is fixedly connected to the guide rod 7, and the other is provided with a guide hole, the guide rod 7 is passed through the guide hole, and the guide rod 7 is vertically distributed between the first support plate 5 and the second support plate 6.

[0075] The guide rod 7 can guide the movement of the first support plate 5 when the driving assembly 4 drives the first support plate 5 to move the first mold 11 and the second mold 12 closer to or farther away from each other, thereby improving the movement accuracy and stability of the first support plate 5.

[0076] Furthermore, the pipeline detection device provided in this embodiment may also include a stand 8 , and the driving assembly 4 and the second support plate 6 are both fixed on the stand 8 .

[0077] When the pipeline detection device provided in this embodiment further includes an airtight detection component 3 , the airtight detection component 3 may also be installed on the stand 8 .

[0078] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A pipeline detection device, characterized in that: It comprises a mold component (1) and a needle body component (2); The mold assembly (1) is provided with a detection channel, the shape of which corresponds to the shape of a standard pipeline, and the detection channel is used to accommodate the pipeline to be tested to detect whether the shape of the pipeline to be tested meets the standard; The needle assembly (2) is arranged on one side of the mold assembly (1), and a needle hole (10) is arranged between the side wall of the mold assembly (1) and the inner wall of the detection channel. The needle assembly (2) comprises a needle body, and the tip of the needle body can pass through the needle hole (10) and then extend into the detection channel, and the vertical distance between the tip of the needle body and the inner wall of the detection channel is less than the wall thickness of the pipeline to be tested.

2. The pipeline detection device according to claim 1, characterized in that: It also includes an airtightness detection component (3), wherein the airtightness detection component (3) includes an air supply structure; At least one end of the detection channel has an exposed pipe opening, and the gas supply structure comprises a gas supply opening (30). The gas supply opening (30) is connected to one end of the pipeline to be tested in the detection channel through the exposed pipe opening of the detection channel. The gas supply structure is used to introduce detection gas into the pipeline to be tested to detect whether the pipe body of the pipeline to be tested is leaking.

3. The pipeline detection device according to claim 2, characterized in that: The airtightness detection assembly (3) further comprises a pressure detection component, and the air supply structure further comprises an air return port (31); The two end pipe openings of the detection channel are exposed, and the air supply port (30) and the air return port (31) are respectively connected to the two ends of the pipeline to be tested through the two exposed pipe openings of the detection channel; The pressure detection components are respectively provided at the gas supply port (30) and the gas return port (31), and the pressure detection components are used to detect the gas pressure at the positions where the pressure detection components are located.

4. The pipeline detection device according to any one of claims 1 to 3, characterized in that: The needle assembly (2) further comprises a base belt and an elastic member, the needle bodies are multiple and the multiple needle bodies are vertically fixed on the base belt; There are a plurality of the pinholes (10), and the plurality of the pinholes (10) are distributed in a one-to-one correspondence with the plurality of the needle bodies; The elastic member is installed on one side of the base band, and is used to be compressed when subjected to pressure, so that the tips of the plurality of needle bodies pass through the plurality of needle holes (10) one by one and then extend into the detection channel.

5. The pipeline detection device according to any one of claims 1 to 3, characterized in that: The mold assembly (1) comprises a first mold (11) and a second mold (12) which are arranged opposite to each other; A first groove (110) is provided on a side of the first mold (11) facing the second mold (12), and a second groove (120) is provided on a side of the second mold (12) facing the first mold (11). The first mold (11) and the second mold (12) can move closer to or away from each other. The first groove (110) and the second groove (120) are used to form the detection channel when the first mold (11) and the second mold (12) are closer to each other.

6. The pipeline detection device according to claim 5, characterized in that: The needle assembly (2) is provided on a side of the first mold (11) away from the first groove (110) and / or on a side of the second mold (12) away from the second groove (120), and the needle hole (10) is provided between the side wall of the first mold (11) and the bottom of the first groove (110), and / or between the side wall of the second mold (12) and the bottom of the second groove (120).

7. The pipeline detection device according to claim 5, characterized in that: The invention also comprises a driving component (4), wherein the first mold (11) and / or the second mold (12) are connected to an output end of the driving component (4), and the driving component (4) is used to drive the first mold (11) and the second mold (12) to move toward or away from each other.

8. The pipeline detection device according to claim 7, characterized in that: It also comprises a first support plate (5) and a second support plate (6), wherein the first support plate (5) is fixed to the output end of the drive assembly (4), and the second support plate (6) is fixed in position and arranged parallel to the first support plate (5); The first mold (11) is fixed on the first support plate (5), and the second mold (12) is fixed on the second support plate (6).

9. The pipeline detection device according to claim 8, characterized in that: The first mold (11) is detachably connected to the first support plate (5), and the second mold (12) is detachably connected to the second support plate (6).

10. The pipeline detection device according to claim 8, characterized in that: It also includes a guide rod (7), one of the first support plate (5) and the second support plate (6) is fixedly connected to the guide rod (7), and the other is provided with a guide hole, the guide rod (7) is inserted into the guide hole, and the guide rod (7) is vertically distributed between the first support plate (5) and the second support plate (6).

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