A barrel detection apparatus with adjustable positioning wheels

Abstract

The utility model provides a kind of machine cylinder detection equipment with adjustable positioning wheel, its machine body front end is equipped with detector, and one set of horizontal longitudinal adjustable support assembly (including front and rear support) is installed in left and right sides, and same side front and rear support is driven to move towards or away by in-machine support adjusting mechanism;Left and right sides walking wheel frame (each is made of two cross hinged and upper end is connected with support, lower end is equipped with first movable connecting rod of walking wheel) and positioning wheel frame (each is made of two cross hinged and lower end is connected with support, upper end is equipped with at least one rod of positioning wheel of second movable connecting rod) are all installed on corresponding support assembly. The spacing of support can be adjusted to link adjustment walking wheel and the spacing of positioning wheel, so as to adapt to different machine cylinder diameter, significantly improve the stability and detection accuracy of equipment in machine cylinder.

Description

Technical Field

[0001] This utility model relates to the field of industrial equipment testing technology, and more specifically, to a barrel testing device with adjustable positioning wheels. Background Technology

[0002] In industrial production, long and narrow barrel structures are widely used in critical equipment such as screw extruders and hydraulically actuated barrels. During long-term operation, the inner wall of the barrel and its internal components suffer wear, scratches, or deformation due to continuous friction, high temperature and pressure, and material fatigue, directly affecting production quality and equipment lifespan. Traditional maintenance methods require complete disassembly of the equipment for internal inspection, resulting in production line downtime of several days or even weeks. Although inspection devices that can move inside the barrel have emerged in recent years, they generally suffer from motion stability defects during movement—mainly manifested as vertical bouncing and lateral tipping—severely limiting inspection accuracy and reliability. This is because the inner wall of the barrel is a curved surface, and unavoidable defects and abnormal conditions directly interfere with the movement mechanism of the inspection device. Utility Model Content

[0003] The purpose of this invention is to provide a barrel testing device with adjustable positioning wheels, which has the advantages of improving the stability and testing accuracy of the testing device when moving inside the barrel.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0005] A barrel inspection device with adjustable positioning wheels includes a body, support assemblies, a traveling wheel frame, and a positioning wheel frame. A detector is located at the front end of the body. Two sets of support assemblies are installed on the left and right sides of the body, adjustable horizontally and longitudinally. The support assemblies on the same side include a front support and a rear support. The body contains a support adjustment mechanism for driving the front and rear supports towards each other or away from each other. Two sets of traveling wheel frames are installed on the support assemblies on the left and right sides, respectively, and are located on the lower side of the body. Each set of traveling wheel frames includes two cross-hinged first movable connecting rods. One of the first movable links has its upper end rotatably connected to the front support, and the other first movable link has its upper end rotatably connected to the rear support. The lower ends of the two first movable links are respectively provided with walking wheels. There are two sets of positioning wheel frames, which are respectively installed on the support assemblies on the left and right sides and located on the upper side of the machine body. Each set of positioning wheel frames includes two cross-hinged second movable links. The lower end of one second movable link is rotatably connected to the front support, and the lower end of the other second movable link is rotatably connected to the rear support. At least one second movable link has a positioning wheel at its upper end.

[0006] As a preferred embodiment of this utility model, the left and right sides of the machine body are provided with slots that match the front support and the rear support.

[0007] As a preferred embodiment of this utility model, the support adjustment mechanism includes a fixed seat, a movable seat, a guide rod, and a screw; two fixed seats are provided, arranged at intervals front and back, and fixed to the body by screws; the guide rod and the screw are parallel to each other and extend horizontally; the front end of the guide rod is fixedly connected to the front fixed seat, and the rear end of the guide rod is fixedly connected to the rear fixed seat; the front end of the screw is rotatably connected to the front fixed seat; the rear end of the screw is rotatably connected to the rear fixed seat; the movable seat is provided with a through hole that is slidably connected to the guide rod and a screw hole that is threadedly connected to the screw; two movable seats are provided, one of which is fixedly connected to the front support and the other is fixedly connected to the rear support.

[0008] In a preferred embodiment of this utility model, the screw extends from the rear end of the machine body to form an operating section.

[0009] As a preferred embodiment of the present invention, the walking wheel frame further includes a wheel rod, which is arranged in a horizontal longitudinal direction and has a slot extending in a horizontal longitudinal direction. The lower end of one of the first movable connecting rods is movably connected to the slot, and the lower end of the other first movable connecting rod is rotatably connected to the rod body of the wheel rod. The front end and rear end of the wheel rod are each provided with at least two walking wheels arranged at intervals in a horizontal longitudinal direction.

[0010] As a preferred embodiment of this utility model, the detector is a camera, which is fixed to the body by screws. The front end of the body is provided with a window matching the detection end of the detector, and a glass plate is provided covering the window.

[0011] As a preferred embodiment of this utility model, the bottom sides of the machine body are provided with a plurality of movable wheels arranged at intervals along the horizontal longitudinal direction.

[0012] As a preferred embodiment of this utility model, the barrel testing device with adjustable positioning wheels further includes an LED light assembly, which has two sets and is respectively installed on the left front end and right front end of the machine body.

[0013] As a preferred embodiment of this utility model, magnetic terminals that are electrically connected to the LED light assembly are provided on both the left and right sides of the body, and the magnetic terminals are fixed on the body by terminal clamping plates.

[0014] As a preferred embodiment of this utility model, the rear end of the machine body is provided with a cable connector for connecting an external host, and the detector and the magnetic terminal are respectively electrically connected to the cable connector.

[0015] The advantages of implementing the barrel testing device with adjustable positioning wheels provided by this utility model compared with the prior art are as follows:

[0016] The operator can adjust the support mechanism to move the front and rear supports towards each other, depending on the inner diameter of the barrel. At this time, the angle of the first movable link of the traveling wheel frame increases, causing the lower traveling wheel to extend outwards, increasing the contact pressure with the inner wall of the barrel. Simultaneously, the angle of the second movable link of the positioning wheel frame increases, pushing the upper positioning wheel outwards, forming top and lateral constraints on the machine body. The traveling wheels and positioning wheels form a symmetrical support structure, maintaining a four-point contact state throughout longitudinal movement. This four-point contact structure enhances the stability of the detection equipment's movement, effectively suppressing vertical jumping and lateral tilting within the barrel, ensuring the detector remains horizontal during movement and improving image acquisition quality. The coordinated adjustment of the traveling wheels and positioning wheels ensures the equipment remains in close contact with the inner wall, avoiding posture deviation caused by local deformation of the barrel's inner wall. The adjustable design adapts to the detection needs of barrels with different diameters, allowing for size adaptation without component replacement, significantly improving detection efficiency. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0018] Figure 1 This is an isometric view of a barrel testing device with adjustable positioning wheels in a stowed state, provided by an embodiment of this utility model.

[0019] Figure 2 This is an isometric view of a barrel testing device with adjustable positioning wheels in its unfolded state, provided by an embodiment of this utility model.

[0020] Figure 3 This is an exploded view of a barrel testing device with adjustable positioning wheels provided in an embodiment of this utility model;

[0021] Figure 4 This is a schematic diagram of the support adjustment mechanism.

[0022] Marked in the image:

[0023] Body 10; Slot 11; Window 12; Glass plate 13; Cable connector 14; Moving wheel 15; Support assembly 20; Walking wheel frame 30; First movable link 31; Wheel rod 32; Slot 33; Second movable link 41; Positioning wheel frame 40; Detector 50; Front support 21; Rear support 22; Support adjustment mechanism 60; Fixed seat 61; Moving seat 62; Guide rod 63; Screw 64; Operating part 65; Walking wheel 70; Positioning wheel 80; LED light assembly 90; Magnetic terminal 91; Terminal clamp 92. Detailed Implementation

[0024] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of this utility model described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model. It should be noted that similar reference numerals and letters in the following drawings indicate similar items; therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. Furthermore, in the description of this utility model, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0025] Please refer to the following: Figures 1 to 4 This utility model embodiment proposes a barrel testing device with adjustable positioning wheels, which includes a body 10, a support assembly 20, a traveling wheel frame 30, and a positioning wheel frame 40; a detector 50 is provided at the front end of the body 10; the support assembly 20 has two sets and is horizontally and longitudinally adjustable and installed on the left and right sides of the body 10; the support assembly 20 on the same side includes a front support 21 and a rear support 22; the body 10 is provided with a support adjustment mechanism 60 for driving the front support 21 and the rear support 22 to move closer to each other or further apart; the traveling wheel frame 30 has two sets, respectively installed on the support assemblies 20 on the left and right sides, and located on the lower side of the body 10; each set of traveling wheel frames 30 includes two intersecting... The first movable link 31 is hinged, with the upper end of one first movable link 31 rotatably connected to the front support 21 and the upper end of the other first movable link 31 rotatably connected to the rear support 22. The lower ends of the two first movable links 31 are respectively provided with walking wheels 70. There are two sets of positioning wheel frames 40, which are respectively installed on the support assemblies 20 on the left and right sides and located on the upper side of the machine body 10. Each set of positioning wheel frames 40 includes two cross-hinged second movable links 41, with the lower end of one second movable link 41 rotatably connected to the front support 21 and the lower end of the other second movable link 41 rotatably connected to the rear support 22. At least one second movable link 41 is provided with a positioning wheel 80 at its upper end.

[0026] The machine body 10 refers to the main structure that carries the detection function, and a detector 50 is installed at its front end to collect the internal state of the barrel. The support assembly 20 refers to the moving unit that supports the traveling wheel frame 30 and the positioning wheel frame 40, and is used to adjust the distance between the traveling wheel 70 and the positioning wheel 80 to adapt to different barrel sizes. The traveling wheel frame 30 refers to the actuator that carries the moving function. The cross-hinged first movable link 31 can form a lifting and adjusting structure, changing the distance between the traveling wheel 70 and the machine body 10 when the support assembly 20 moves. The positioning wheel frame 40 refers to the stabilizing mechanism that provides top constraint. The cross-hinged second movable link 41 can form a lifting and adjusting structure, forming an adjustment path opposite to that of the traveling wheel frame 30, and achieving synchronous movement by connecting to the same support assembly 20, thereby changing the distance between the positioning wheel 80 and the machine body 10.

[0027] Specifically, the operator can drive the front support 21 and the rear support 22 to move towards each other through the support adjustment mechanism 60 according to the inner diameter of the barrel. At this time, the included angle of the first movable link 31 of the traveling wheel frame 30 increases, causing the lower traveling wheel 70 to expand outward, increasing the contact pressure with the inner wall of the barrel. At the same time, the included angle of the second movable link 41 of the positioning wheel frame 40 increases, pushing the upper positioning wheel 80 to expand outward, forming a constraint on the top and sides of the machine body 10. The traveling wheel 70 and the positioning wheel 80 form a symmetrical support structure, maintaining a four-point contact state during longitudinal movement. Therefore, this four-point contact structure enhances the stability of the detection equipment's movement, effectively suppressing the vertical jumping and lateral tilting of the detection device within the barrel, ensuring that the detector 50 remains horizontal during movement and improving image acquisition quality; the coordinated adjustment of the traveling wheel 70 and the positioning wheel 80 ensures that the equipment always stays close to the inner wall, avoiding posture deviation caused by local deformation of the inner wall of the barrel; the adjustable design adapts to the detection needs of barrels with different diameters, and size adaptation can be completed without replacing parts, significantly improving detection efficiency.

[0028] For example, in this embodiment of the present invention, the body 10 is provided with slots 11 on both the left and right sides to match the front support 21 and the rear support 22.

[0029] It is understood that slot 11 refers to an opening structure formed on the side wall of the machine body 10, which can be implemented using a rectangular slot structure. The length direction of slot 11 is consistent with the horizontal longitudinal direction. The size of slot 11 is designed to form a clearance fit with the mounting parts of the front support 21 and the rear support 22, allowing the front support 21 and the rear support 22 to move horizontally and longitudinally within the range defined by slot 11. This design precisely constrains the movement path of the front support 21 and the rear support 22, ensuring that the traveling wheel frame 30 and the positioning wheel frame 40 always maintain a symmetrical distribution within the machine barrel, thereby improving the contact stability between the traveling wheel 70, the positioning wheel 80 and the inner wall of the machine barrel.

[0030] For example, this utility model embodiment further proposes a support adjustment mechanism 60 including a fixed seat 61, a movable seat 62, a guide rod 63, and a screw 64; two fixed seats 61 are provided, arranged at intervals front and back, and fixed in the body 10 by screws; the guide rod 63 and the screw 64 are parallel to each other and extend horizontally; the front end of the guide rod 63 is fixedly connected to the front fixed seat 61, and the rear end of the guide rod 63 is fixedly connected to the rear fixed seat 61; the front end of the screw 64 is rotatably connected to the front fixed seat 61; the rear end of the screw 64 is rotatably connected to the rear fixed seat 61; the movable seat 62 is provided with a through hole that is slidably connected to the guide rod 63 and a screw hole that is threadedly connected to the screw 64; two movable seats 62 are provided, one of which is fixedly connected to the front support 21 and the other is fixedly connected to the rear support 22.

[0031] It is understood that the fixed base 61 refers to the support structure used to support the guide rod 63 and the screw 64. Specifically, it can be a metal block fixed inside the body 10 with screws to form a front-to-back installation reference. The guide rod 63 refers to a rigid guide component extending longitudinally. Specifically, it can be a smooth cylindrical rod used to limit the horizontal longitudinal movement trajectory of the movable base 62. The screw 64 refers to a threaded transmission component. Specifically, it can be a double-threaded rod (with two sections of threads in opposite directions), which drives the two movable bases 62 to move closer together or further apart by rotation. The movable base 62 refers to a sliding component with a through hole and a threaded hole. The through hole is clearance-fitted with the guide rod 63 to achieve sliding, and the threaded hole engages with the screw 64 to achieve transmission. When the screw 64 is driven to rotate, the movable base 62 moves horizontally longitudinally under the constraint of the guide rod 63. Since the front support 21 and the rear support 22 are fixedly connected to the two movable bases 62 respectively, the forward and reverse rotation of the screw 64 can control the front support 21 and the rear support 22 to move towards or away from each other. The parallel arrangement of the guide rod 63 and the screw 64 ensures that the moving seat 62 maintains linear motion during sliding, avoiding deviation caused by uneven force. Therefore, the design of the support adjustment mechanism 60 ensures that the distance adjustment process between the traveling wheel frame 30 and the positioning wheel frame 40 is smooth and controllable, thereby improving the stability of the detection device when it moves within the barrel.

[0032] In some specific embodiments, the screw 64 extends from the rear end of the body 10 to form an operating part 65. The operating part 65 refers to the operable area where the screw 64 extends to the outside of the body 10. Specifically, it can adopt a hexagonal head, a handle interface, or a gear transmission structure to facilitate the application of rotational driving force to the screw 64 manually or with tools.

[0033] For example, the present utility model embodiment further proposes that the walking wheel frame 30 also includes a wheel rod 32, the wheel rod 32 is arranged in a horizontal longitudinal direction, and the wheel rod 32 is provided with a slot 33 extending in a horizontal longitudinal direction. The lower end of one of the first movable connecting rods 31 is movably connected to the slot 33, and the lower end of the other first movable connecting rod 31 is rotatably connected to the rod body of the wheel rod 32. The front end and the rear end of the wheel rod 32 are provided with at least two walking wheels 70 arranged at intervals in a horizontal longitudinal direction.

[0034] It is understandable that wheel rod 32 refers to the longitudinal support component used to support the traveling wheels 70, which can be implemented using a metal rod with a rectangular cross-section. Slot 33 refers to an elongated through-hole opened on wheel rod 32, which controls the unfolding angle of the traveling wheel frame 30 by limiting the sliding range of the movable link. Movable connection refers to the sliding fit between the lower end of the first movable link 31 and the slot 33, which can be implemented by a pin passing through the slot 33. Rotating connection refers to the hinged relationship between the lower end of the first movable link 31 and the wheel rod 32, which can be implemented using a bushing structure. Multiple traveling wheels 70 are arranged at the front and rear ends of wheel rod 32 to form a multi-point support structure, thereby covering different areas of the inner wall of the barrel and dispersing contact pressure. Even if there are local depressions or protrusions in the inner wall of the barrel, balance can still be maintained through the alternating contact of at least two traveling wheels 70, thus preventing the device from tilting due to local defects in the inner wall of the barrel. Furthermore, the change in the posture of the walking wheel frame 30 will not affect the distance between the front and rear walking wheels 70. The constant front and rear wheel track ensures that the front and rear support points supporting the weight of the equipment are relatively fixed, which can effectively maintain the state of gravity balance and avoid additional overturning risks caused by changes in the distance between support points, thus significantly improving walking stability.

[0035] For example, in this embodiment of the present invention, the detector 50 is further proposed to be a camera. The detector 50 is fixed in the body 10 by screws. The front end of the body 10 is provided with a window 12 that matches the detection end of the detector 50. A glass plate 13 is provided at the window 12.

[0036] It is understandable that the detector 50, or camera, refers to a visual sensing device used to acquire images or videos inside the barrel. Specifically, it can be implemented using an industrial-grade high-definition camera, which is fixed inside the body 10 with screws to achieve stable installation and avoid image blurring due to vibration during the detection process. The window 12 refers to the opening area located at the front end of the body 10 corresponding to the camera detection end. Specifically, it can be implemented using a rectangular or circular through-hole structure. The glass plate 13 covering the window 12 is a transparent protective layer used to prevent external dust or foreign objects from entering the body 10, while ensuring that the camera's field of view is not obstructed.

[0037] For example, the bottom sides of the machine body are provided with a plurality of moving wheels 15 arranged at intervals along the horizontal longitudinal direction.

[0038] Understandably, the movable wheel 15 is used for measuring small-sized barrels with diameters of φ46 to 58 mm. When using the movable wheel 15, the travel wheel frame 30 needs to be removed.

[0039] For example, this utility model embodiment further proposes a barrel testing device with adjustable positioning wheels 80, and also includes an LED light assembly 90, which has two sets and is respectively installed on the left front end and right front end of the body 10.

[0040] It is understandable that the LED light assembly 90 refers to an illumination unit composed of multiple LED beads. Specifically, it can be implemented using surface-mount LED strips or integrated light boards, and fixed to both sides of the front end of the body 10 with screws or clips, ensuring that the illumination direction of the LED light assembly 90 matches the field of view of the detector 50. The function of the LED light assembly 90 is to provide an auxiliary light source for the detector 50, solving the problem of blurred detection images caused by insufficient light inside the barrel. Furthermore, the dual-sided arrangement of the LED light assembly 90 further adapts to the detection needs of barrels with different diameters, avoiding blind spots caused by light source misalignment.

[0041] For example, this utility model embodiment further proposes that the left and right sides of the body 10 are provided with magnetic terminals 91 that are electrically connected to the LED lamp assembly 90, and the magnetic terminals 91 are fixed on the body 10 by terminal clamping plates 92.

[0042] It is understood that the magnetic terminal 91 refers to a contact component that achieves electrical connection through magnetic attraction. Specifically, it can be implemented using a metal terminal with magnetic material. Its function is to enable rapid electrical connection and disconnection between the LED assembly 90 and the body 10. The terminal clamping plate 92 refers to a metal sheet structure used to fix the magnetic terminal 91. Specifically, it can be implemented using a metal clamping plate with mating holes. Its function is to stably fix the magnetic terminal 91 to the surface of the body 10, preventing contact failure due to vibration or external force. Specifically, the magnetic terminals 91 are arranged on both sides of the body 10 corresponding to the positions of the LED assembly 90. The terminal clamping plate 92 connects the magnetic terminals 91 to the body 10 with screws, and the magnetic terminals 91 are exposed through the mating holes on the terminal clamping plate 92. When the LED assembly 90 needs to be installed, its bottom conductive contacts can be positioned by magnetic attraction through the magnetic terminals 91. Therefore, the LED assembly 90 can obtain a stable power supply through the magnetic terminals 91 during testing, and can be quickly disassembled for maintenance without disconnecting complex cables.

[0043] For example, in this embodiment of the present invention, the rear end of the body 10 is provided with a cable connector 14 for connecting an external host, and the detector 50 and the magnetic terminal 91 are electrically connected to the cable connector 14 respectively.

[0044] As can be understood, cable connector 14 refers to the interface component used to enable power or signal transmission between the device and an external host. Cable connector 14 is integrated at the rear end of the housing 10 and connects to detector 50 and magnetic terminals 91 on both sides via internal wiring. When the device enters the housing, control signals from the external host are transmitted to detector 50 through cable connector 14, driving it to acquire image data; simultaneously, magnetic terminals 91 transmit power to LED light assembly 90 to provide illumination. Because the power supply and communication lines of detector 50 and magnetic terminals 91 are centrally managed through a single cable connector 14, the risk of cable entanglement within the confined housing is reduced.

[0045] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A barrel testing device with adjustable positioning wheels, characterized in that, include: The body, wherein a detector is provided at the front end of the body; The support assembly has two sets and can be horizontally and longitudinally adjusted and installed on the left and right sides of the body; the support assembly on the same side includes a front support and a rear support; the body is provided with a support adjustment mechanism for driving the front support and the rear support to move closer to each other or further apart. The walking wheel frame has two sets, which are respectively installed on the support assemblies on the left and right sides and located on the lower side of the machine body; each set of the walking wheel frame includes two cross-hinged first movable links, one of which is rotatably connected to the front support, and the other is rotatably connected to the rear support. The lower ends of the two first movable links are respectively provided with walking wheels. The positioning wheel frame has two sets, which are respectively installed on the support assemblies on the left and right sides and located on the upper side of the machine body; each set of the positioning wheel frame includes two cross-hinged second movable links, the lower end of one of the second movable links is rotatably connected to the front support, the lower end of the other second movable link is rotatably connected to the rear support, and at least one second movable link has a positioning wheel at its upper end.

2. The barrel testing device with adjustable positioning wheels according to claim 1, characterized in that, The left and right sides of the machine body are provided with slots that match the front support and the rear support.

3. The barrel testing device with adjustable positioning wheels according to claim 1, characterized in that, The support adjustment mechanism includes a fixed seat, a movable seat, a guide rod, and a screw. Two fixed seats are provided, arranged at intervals front to back, and fixed to the body of the machine body by screws. The guide rod and the screw are parallel to each other and extend horizontally. The front end of the guide rod is fixedly connected to the front fixed seat, and the rear end of the guide rod is fixedly connected to the rear fixed seat. The front end of the screw is rotatably connected to the front fixed seat, and the rear end of the screw is rotatably connected to the rear fixed seat. The movable seat has a through hole that slides with the guide rod and a threaded hole that threads with the screw. Two movable seats are provided, one fixedly connected to the front support and the other fixedly connected to the rear support.

4. The barrel testing device with adjustable positioning wheels according to claim 3, characterized in that, The screw extends from the rear end of the machine body to form an operating section.

5. The barrel testing device with adjustable positioning wheels according to claim 1, characterized in that, The walking wheel frame also includes a wheel rod, which is arranged in a horizontal longitudinal direction. The wheel rod has a slot extending in a horizontal longitudinal direction. The lower end of one of the first movable connecting rods is movably connected to the slot, and the lower end of the other first movable connecting rod is rotatably connected to the rod body of the wheel rod. The front end and rear end of the wheel rod are each provided with at least two walking wheels arranged at intervals in a horizontal longitudinal direction.

6. The barrel testing device with adjustable positioning wheels according to claim 1, characterized in that, The detector is a camera, which is fixed to the body by screws. The front end of the body has a window that matches the detection end of the detector, and the window is covered with a glass plate.

7. The barrel testing device with adjustable positioning wheels according to claim 1, characterized in that, The bottom of the machine body is provided with multiple moving wheels arranged at intervals along the horizontal longitudinal direction on both sides.

8. The barrel testing device with adjustable positioning wheels according to any one of claims 1 to 7, characterized in that, It also includes an LED light assembly, which has two sets and is respectively installed on the left front end and right front end of the body.

9. The barrel testing device with adjustable positioning wheels according to claim 8, characterized in that, The left and right sides of the body are provided with magnetic terminals that are electrically connected to the LED light assembly. The magnetic terminals are fixed to the body by terminal clamps.

10. The barrel testing device with adjustable positioning wheels according to claim 9, characterized in that, The rear end of the device is provided with a cable connector for connecting an external host, and the detector and the magnetic terminal are electrically connected to the cable connector respectively.

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