Dimension detection device for tail gas exhaust pipe

Abstract

The utility model relates to the technical field of exhaust pipe detection equipment, in particular to a tail gas exhaust pipe size detection device which comprises a base, two positioning assemblies are symmetrically installed on the base, and bearing frames used for supporting an exhaust pipe are installed on the two sides of the base. The base drives the positioning assembly to horizontally move through the lead screw component to clamp and position the exhaust pipe, scale marks are arranged on the outer wall of the base in the horizontal direction, the exhaust pipe is horizontally supported through the bearing frame, and the middle of the exhaust pipe is clamped and positioned through the positioning assembly. According to the tail gas exhaust pipe size detection device, the positioning assemblies symmetrically arranged on the base and the bearing frames on the two sides are matched with each other, and accurate positioning and stable supporting of the exhaust pipe can be achieved. The groove of the bearing frame is attached to the bottom of the exhaust pipe, the puller bolt on the fixing plate is matched with the buffering silica gel pad to tightly abut against and limit the outer side of the exhaust pipe, and the exhaust pipe is prevented from shaking in the measuring process.

Description

Technical Field

[0001] This utility model relates to the technical field of exhaust pipe testing equipment, specifically, to a device for detecting the size of exhaust pipes. Background Technology

[0002] In the field of exhaust pipe measurement equipment technology, the accurate detection of exhaust pipe dimensions is of vital importance to automobile performance, environmental protection, and safety.

[0003] Currently, various exhaust gas detection devices exist in the existing technology. For example, Tianjin Yuhai Motor Vehicle Inspection Co., Ltd. obtained a patent titled "A Collection and Detection Device for Automobile Exhaust Gas" (Authorization Announcement No. CN222812638U, Application Date: May 2024), which mainly focuses on the collection of automobile exhaust gas. It uses a specific structure to fix different types and sizes of exhaust ports to achieve exhaust gas collection, but it does not involve the detection of exhaust pipe size. Another example is Fujian Yongqiang Lijia Power Equipment Co., Ltd.'s "A Generator Set Exhaust Gas Detection Device" (Authorization Announcement No. CN222774553U, Application Date: May 2024). This device can adapt to the exhaust pipes of different generator sets, facilitating connection and disassembly for exhaust gas detection, but it also lacks a design for detecting exhaust pipe size.

[0004] Traditional methods for inspecting exhaust pipe dimensions often suffer from numerous problems. Some inspection devices cannot easily and stably clamp and position exhaust pipes of different diameters, leading to pipe swaying during measurement and affecting accuracy. Some devices lack intuitive scale markings or efficient drive adjustment mechanisms, making it difficult for operators to quickly and accurately obtain exhaust pipe size data, resulting in low inspection efficiency. Furthermore, most existing inspection devices are single-function and cannot simultaneously meet the requirements of measuring the dimensions of exhaust pipes at different locations and providing reliable support and positioning for the exhaust pipe during inspection. Utility Model Content

[0005] The purpose of this invention is to provide a device for detecting the size of exhaust pipes, in order to solve the problem that some detection devices mentioned in the background art cannot easily and stably clamp and position exhaust pipes of different diameters, resulting in the exhaust pipes easily shaking during the measurement process and affecting the measurement accuracy.

[0006] To achieve the above objectives, this utility model provides a tail gas exhaust pipe size detection device, including a base, on which two positioning components are symmetrically installed, and support brackets are installed on both sides of the base. The base is connected to the positioning components through a screw component, which can drive the two positioning components to move horizontally relative to each other. The outer wall of the base is provided with scale lines in the horizontal direction.

[0007] The lead screw component includes a lead screw disposed in the base. The lead screw includes two sections with opposite helical directions. Each section is threadedly connected to a lead screw slider. The top of the lead screw slider is fixedly connected to the bottom of the positioning assembly. One end of the lead screw is driven to rotate by a drive motor.

[0008] This setup uses a base as its basic support structure, with symmetrically installed positioning components and two side supports working together. A lead screw drives the positioning components to move horizontally, using the opposing or back-to-back movements of the two positioning components to clamp the exhaust pipe. The scale lines on the outer wall of the base cooperate with the positioning components to measure the exhaust pipe's dimensions. The exhaust pipe is horizontally supported by the supports and fixed in the middle by the positioning components, forming a complete detection framework. Inside the base is a lead screw with two sections of opposite helical directions. When the lead screw rotates, the sliders on the two sections move in opposite directions under the action of the threads, thereby driving the connected positioning components to move synchronously in opposite directions. A drive motor provides power for the lead screw's rotation, enabling automated adjustment.

[0009] Preferably, the top of the base has a strip-shaped opening, and the top of the lead screw slider slides in cooperation with the strip-shaped opening.

[0010] The strip-shaped opening at the top of the base provides a guide channel for the movement of the lead screw and slider. The top of the lead screw and slider slides horizontally with the strip-shaped opening, which restricts the degree of freedom of the lead screw and slider in the direction perpendicular to the movement direction, so that it can only move horizontally along the direction of the strip-shaped opening, thereby ensuring the linearity and stability of the movement of the positioning component.

[0011] Preferably, the positioning component includes a movable plate, the lead screw slider is connected to the movable plate, and a soft pad made of rubber material is installed on the side of the movable plate of the two positioning components that are close to each other. The soft pad has an inwardly concave arc surface structure.

[0012] This feature includes a recessed curved pad installed on the side of the movable plate in the positioning assembly. When the positioning assembly clamps the exhaust pipe, the curved pad can fit tightly against the outer surface of the exhaust pipe. By utilizing the elasticity of the rubber material, a flexible clamping of the exhaust pipe can be achieved under a certain pressure.

[0013] Preferably, an arrow is installed on the lower side of the movable plate.

[0014] This feature involves using the arrow on the lower side of the movable plate in conjunction with the scale lines on the outer wall of the base. As the positioning component moves, the value of the scale line indicated by the arrow corresponds to the position of the positioning component, thus visually reflecting the size information of the exhaust pipe.

[0015] Preferably, the support frame includes a C-shaped support plate, both ends of which are connected to the base, and the base has support plates on both sides. The support plate has a groove in the middle, which can fit against the bottom surface of the exhaust pipe.

[0016] This device features a groove in the center of the support plate of the support frame. When the exhaust pipe is placed, the bottom surface of the exhaust pipe fits into the groove. The shape of the groove is used to initially position and support the exhaust pipe, keeping it in a horizontal and stable state.

[0017] Preferably, fixing plates are installed on both sides of the support plate, and tightening bolts are threaded onto the fixing plates.

[0018] This feature involves installing tightening bolts on the fixing plates on both sides of the support plate. By rotating the tightening bolts, one end of the bolt gradually approaches and presses against the outer surface of the exhaust pipe. The axial pressure of the bolts is used to fix the exhaust pipe to the support plate, thereby further limiting the position of the exhaust pipe.

[0019] Preferably, the two tightening bolts are fitted with buffer silicone pads at their adjacent ends.

[0020] This feature involves installing a buffer silicone pad at the end of the tightening bolt. When the tightening bolt presses against the exhaust pipe, the buffer silicone pad acts as an intermediate medium, using its own elastic deformation to relieve the pressure of the tightening bolt on the surface of the exhaust pipe and avoid rigid contact that could damage the exhaust pipe.

[0021] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0022] In this exhaust pipe size detection device, the symmetrically arranged positioning components on the base and the support brackets on both sides work together to achieve precise positioning and stable support of the exhaust pipe. The grooves of the support brackets fit snugly against the bottom of the exhaust pipe, and the tightening bolts on the fixing plate, together with the buffer silicone pads, can tightly limit the outer side of the exhaust pipe, preventing it from shaking during measurement. The positioning components drive the moving plate to move horizontally via a lead screw component, and the curved soft pads on the side of the moving plate fit tightly against the surface of the exhaust pipe, further ensuring the stability of the exhaust pipe during the detection process, thereby significantly improving measurement accuracy.

[0023] The base features two lead screws with opposite spiral directions inside. Driven by a motor, these two lead screw sliders move synchronously, thereby enabling the positioning component to quickly clamp and position exhaust pipes of different diameters. The adjustment process is efficient and convenient. Simultaneously, the horizontal scale lines on the outer wall of the base, along with the arrow markings on the side of the positioning component's moving plate, allow operators to intuitively read the exhaust pipe's dimensions without the need for additional complex measuring tools, effectively improving inspection efficiency.

[0024] This testing device integrates exhaust pipe support, clamping and positioning, and dimensional measurement functions, enabling it to measure the dimensions of the middle part of the exhaust pipe, thus meeting diverse testing needs and solving the problem of limited functionality in existing devices. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0026] Figure 2 This is a partial structural schematic diagram of the present invention;

[0027] Figure 3 This is a schematic diagram of the base structure in this utility model;

[0028] Figure 4 This is a schematic diagram of the positioning component in this utility model;

[0029] Figure 5 This is a schematic diagram of the support frame in this utility model;

[0030] The meanings of the labels in the diagram are as follows:

[0031] 1. Base; 11. Lead screw; 12. Lead screw slider; 13. Strip-shaped opening; 14. Drive motor; 15. Scale line; 2. Positioning assembly; 21. Moving plate; 22. Soft pad; 23. Arrow; 3. Support bracket; 31. Support plate; 311. Groove; 32. Fixing plate; 33. Tightening bolt. Detailed Implementation

[0032] 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.

[0033] This utility model provides a device for detecting the size of an exhaust pipe, such as... Figure 1 , Figure 2 As shown, the device includes a base 1, on which two positioning components 2 are symmetrically installed. Support brackets 3 for supporting the exhaust pipe are installed on both sides of the base 1. The base 1 is connected to the positioning components 2 via a screw component, which can drive the two positioning components 2 to move horizontally relative to each other to clamp and position the exhaust pipe. The outer wall of the base 1 is provided with a scale line 15 in the horizontal direction. The exhaust pipe is horizontally supported by the support brackets 3 and clamped and positioned in the middle by the positioning components 2.

[0034] Using base 1 as the basic support structure, two symmetrically installed positioning components 2 and two side support frames 3 work together. A lead screw component inside base 1 drives the positioning components 2 to move horizontally, using the opposing or receding movements of the two side positioning components 2 to clamp the exhaust pipe. A horizontally set scale line 15 on the outer wall of base 1 cooperates with the positioning components 2 to measure the exhaust pipe size. The exhaust pipe is horizontally supported by the support frames 3 and fixed in the middle by the positioning components 2, forming a complete inspection framework. The combination of positioning components 2 and support frames 3 achieves stable support and precise positioning of the exhaust pipe, providing a reliable foundation for dimensional measurement. The scale line 15 allows operators to intuitively read the exhaust pipe size data, simplifying the measurement process and improving inspection efficiency.

[0035] In this embodiment, as Figure 3 As shown, the internal lead screw component of the base 1 includes a lead screw 11, which comprises two sections with opposite helical directions. Each section is threadedly connected to a lead screw slider 12. The top of the lead screw slider 12 is fixedly connected to the bottom of the positioning assembly 2. One end of the lead screw 11 is driven to rotate by a drive motor 14. The lead screw 11, consisting of two sections with opposite helical directions and a lead screw slider 12 mounted on each section, rotates when the lead screw 11 rotates. The lead screw sliders 12 on the two sections move in opposite directions under the action of the threads, thereby driving the positioning assembly 2, which is fixedly connected to the top of the lead screw slider 12, to move synchronously towards or away from each other. The rotation of one end of the lead screw 11 by the drive motor 14 enables automated adjustment. This lead screw 11 structure ensures that the two positioning assemblies 2 move synchronously and stably, accurately adapting to exhaust pipes of different diameters, achieving rapid and stable clamping and positioning. Compared to manual or asymmetrical adjustment methods, this improves adjustment efficiency and positioning accuracy while reducing the labor intensity of operators.

[0036] Specifically, such as Figure 3 As shown, a slot 13 is provided on the top of the base 1, and the top of the lead screw slider 12 slides in cooperation with the slot 13. The slot 13 provides a guide channel for the movement of the lead screw slider 12, restricting its degree of freedom perpendicular to the direction of movement, allowing it to move horizontally along the direction of the slot 13, thus ensuring the linearity and stability of the positioning assembly 2's movement. The cooperation between the slot 13 and the lead screw slider 12 enhances the stability and guidance of the positioning assembly 2 during movement, preventing offset or wobbling during movement, further improving the accuracy of the exhaust pipe clamping and positioning, and ensuring the precision of dimensional measurement.

[0037] Furthermore, such as Figure 4As shown, the positioning component 2 includes movable plates 21, and rubber pads 22 are mounted on the sides of the two movable plates 21 that are close to each other. The pads 22 have an inwardly concave arc-shaped structure. When the positioning component 2 clamps the exhaust pipe, the arc-shaped pads 22 can fit tightly against the outer surface of the exhaust pipe. Utilizing the elasticity of the rubber material, flexible clamping of the exhaust pipe is achieved under a certain pressure. The design of the arc-shaped pads 22 increases the contact area with the exhaust pipe, providing a more uniform clamping force and avoiding damage to the exhaust pipe surface. Simultaneously, the flexible clamping can adapt to exhaust pipes of different shapes and surface conditions, improving the versatility of the device and the protective performance of the exhaust pipe.

[0038] Furthermore, such as Figure 4 As shown, an arrow 23 is mounted on the lower side of the movable plate 21. The arrow 23 engages with the scale line 15 on the outer wall of the base 1. During the movement of the positioning component 2, the value indicated by the arrow 23 on the scale line 15 corresponds to the position of the positioning component 2, thus visually reflecting the size information of the exhaust pipe. The interaction between the arrow 23 and the scale line 15 allows operators to read the exhaust pipe size data more quickly and accurately, eliminating the need for complex measurements and calculations, further simplifying the measurement process, improving detection efficiency, and reducing reading errors.

[0039] Furthermore, the support frame 3 includes a support plate 31, which is U-shaped and connected to both ends of the base 1. Support plates 31 are also provided on both sides of the base 1. A groove 311 is provided in the middle of the support plate 31, which positions and conforms to the bottom surface of the exhaust pipe. When the exhaust pipe is placed, its bottom surface conforms to the groove 311, utilizing the shape of the groove 311 to initially position and support the exhaust pipe, ensuring its horizontal stability. The groove 311 structure effectively positions and supports the exhaust pipe, preventing it from rolling or shifting during testing, providing a stable foundation for subsequent clamping and dimensional measurement, and ensuring the accuracy of the measurement results.

[0040] Furthermore, such as Figure 5As shown, fixing plates 32 are installed on both sides of the support plate 31. The fixing plates 32 are threadedly connected to tightening bolts 33. Rotating the tightening bolts 33 allows for horizontal movement, thereby tightening and limiting the outer surface of the exhaust pipe with their ends. The fixing plates 32 are installed on both sides of the support plate 31, and tightening bolts 33 are installed on the fixing plates 32. By rotating the tightening bolts 33, one end of the bolt gradually approaches and tightens against the outer surface of the exhaust pipe. The axial pressure of the bolts fixes the exhaust pipe to the support plate 31, achieving further limitation of the exhaust pipe. The setting of the tightening bolts 33 allows for flexible adjustment of the fixing force on the exhaust pipe according to its actual size and testing requirements, enhancing the adaptability of the device to exhaust pipes of different specifications, further improving the stability of the exhaust pipe during the testing process, and ensuring measurement accuracy.

[0041] Furthermore, such as Figure 5 As shown, a buffer silicone pad is installed at the end of the tightening bolt 33. When the tightening bolt 33 tightens against the exhaust pipe, the buffer silicone pad acts as an intermediate medium, using its own elastic deformation to relieve the pressure of the tightening bolt 33 on the surface of the exhaust pipe, avoiding rigid contact damage to the exhaust pipe. The presence of the buffer silicone pad ensures effective fixation of the exhaust pipe while protecting its surface from damage, improving the safety and reliability of the device in practical applications, extending the service life of the exhaust pipe, and reflecting the user-friendly and practical design of the device.

[0042] When using the exhaust pipe size detection device of this utility model, the exhaust pipe to be tested is first placed on the support brackets 3 on both sides of the base 1. At this time, the bottom surface of the exhaust pipe is in contact with the groove 311 in the middle of the support plate 31. The groove 311 provides initial positioning and support for the exhaust pipe, keeping it in a horizontal and stable state. Next, the operator rotates the tightening bolts 33 on the fixing plates 32 on both sides of the support plate 31, so that the buffer silicone pad at one end of the tightening bolt 33 gradually approaches and tightens the outer surface of the exhaust pipe. The axial pressure of the bolts further limits the exhaust pipe, preventing the exhaust pipe from rolling or shifting during the detection process.

[0043] The drive motor 14 is started, which drives the lead screw 11 inside the base 1 to rotate. Since the lead screw 11 has two sections with opposite helical directions, when the lead screw 11 rotates, the lead screw sliders 12 on the two sections move in opposite directions under the action of the threads. The top of the lead screw sliders 12 is connected and fixed to the bottom of the moving plate 21 of the positioning assembly 2, thereby driving the positioning assemblies 2 on both sides to move synchronously towards each other. The arc-shaped soft pad 22 on the side of the moving plate 21 gradually comes into close contact with the outer surface of the exhaust pipe, utilizing the elasticity of the rubber material to achieve flexible clamping of the exhaust pipe. As the positioning assembly 2 moves, the exhaust pipe is eventually stably clamped.

[0044] During the movement of the positioning component 2 to clamp the exhaust pipe, the arrow 23 on the lower side of the moving plate 21 corresponds to the horizontal scale line 15 on the outer wall of the base 1. The value of the scale line 15 indicated by arrow 23 reflects the position of the positioning component 2 at this time, thus visually showing the size information of the exhaust pipe. The operator can directly read this value to complete the measurement of the exhaust pipe size. If it is necessary to measure the size of the exhaust pipe at different positions, the position of the exhaust pipe on the support 3 can be adjusted, and the above clamping and measurement steps can be repeated.

[0045] After the measurement is completed, start the drive motor 14 to reverse, causing the lead screw 11 to rotate in the opposite direction, so that the positioning components 2 on both sides move in opposite directions, releasing the clamp on the exhaust pipe. Then loosen the tightening bolt 33 to remove the exhaust pipe, completing one inspection process.

[0046] Finally, it should be noted that the electronic components in the drive motor 14 and other components in this embodiment are all general standard parts or parts known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. In the idle part of this device, all the above-mentioned electrical components are connected by wires. The specific connection method should refer to the working order between the electrical components in the above working principle to complete the electrical connection. All of these are technologies known in the art.

[0047] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A device for detecting the size of an exhaust pipe, comprising a base (1), characterized in that: Two positioning components (2) are symmetrically installed on the base (1). Support brackets (3) are installed on both sides of the base (1). The base (1) is connected to the positioning components (2) through a screw component, which can drive the two positioning components (2) to move horizontally relative to each other. The outer wall of the base (1) is provided with scale lines (15) in the horizontal direction. The lead screw component includes a lead screw (11) disposed in the base (1). The lead screw (11) includes two sections with opposite helical directions. Each section is threaded with a lead screw slider (12). The top of the lead screw slider (12) is fixedly connected to the bottom of the positioning component (2). One end of the lead screw (11) is driven to rotate by a drive motor (14).

2. The exhaust pipe size detection device according to claim 1, characterized in that: The top of the base (1) is provided with a strip-shaped opening (13), and the top of the lead screw slider (12) slides in cooperation with the strip-shaped opening (13).

3. The exhaust pipe size detection device according to claim 1, characterized in that: The positioning component (2) includes a movable plate (21), the lead screw slider (12) is connected to the movable plate (21), and a soft pad (22) made of rubber material is installed on the side of the movable plate (21) of the two positioning components that are close to each other. The soft pad (22) has an inwardly concave arc surface structure.

4. The exhaust pipe size detection device according to claim 3, characterized in that: An arrow (23) is mounted on the lower side of the movable plate (21).

5. The exhaust pipe size detection device according to claim 1, characterized in that: The support frame (3) includes a support plate (31) in the shape of a c, both ends of which are connected to the base (1), and the base (1) is provided with support plates (31) on both sides. The support plate (31) has a groove (311) in the middle, and the groove (311) can fit with the bottom surface of the exhaust pipe.

6. The exhaust pipe size detection device according to claim 5, characterized in that: Fixing plates (32) are installed on both sides of the support plate (31), and tightening bolts (33) are threaded onto the fixing plates (32).

7. The exhaust pipe size detection device according to claim 6, characterized in that: The two tightening bolts (33) are fitted with buffer silicone pads at their adjacent ends.

Images