Probe adjusting structure of metal detector
By using a worm gear transmission system and an arc-shaped plate support shaft design, the problem of multi-angle adjustment and stability of the metal detector probe was solved, thus achieving multi-angle adjustment and operational stability of the probe.
Patent Information
- Application Number
- CN202520529730.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-25
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-03-25
AI Technical Summary
Existing metal detector probes cannot be adjusted at multiple angles during use, and after adjustment, they are prone to loosening due to vibration, resulting in unstable fixation.
The worm gear transmission system, combined with the design of the arc plate and support shaft, enables multi-angle adjustment of the probe, and the high transmission ratio between the worm and the worm wheel ensures stability after adjustment.
The probe can be adjusted to 360°, ensuring stability under conditions such as vibration and meeting the detection needs of different environments.
Smart Images

Figure CN223768532U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of metal detector technology, and in particular to a probe adjustment structure for a metal detector. Background Technology
[0002] A metal detector is a device that uses electromagnetic induction and other working principles to detect the presence of metal.
[0003] When using a metal detector, the probe needs to be close to the ground and parallel to it to maximize the detection area. During use, depending on the detection accuracy and the detection environment, the angle of the metal detector probe needs to be adjusted. However, existing metal detector probes usually only allow for angle adjustment by rotating on a single axis. After adjustment, they are fixed with bolts or other means. But during use, vibration or other reasons may cause the fixation to loosen, thus requiring readjustment.
[0004] Therefore, we provide a probe adjustment structure for a metal detector. Utility Model Content
[0005] The purpose of this invention is to address the aforementioned technical problems by providing a probe adjustment structure for a metal detector, achieving multi-angle adjustment and stability after adjustment.
[0006] In view of this, the present invention provides a probe adjustment structure for a metal detector, including a detector rod, wherein a worm gear is provided inside the lower half of the detector rod, and the worm gear is connected to a worm wheel;
[0007] An arc-shaped plate is provided at the lower end of the worm gear. An angle rod is connected to one side of the arc-shaped plate. A support shaft is connected to the outer side of the lower half of the angle rod. A connecting rod is connected to one end of the support shaft. Support rods are connected to both ends of the connecting rod. A rotating rod is connected to the outer side of the support rod. One end of the rotating rod is connected to the inner wall of the detector rod.
[0008] Preferably, the worm rotates inside the lower half of the detector rod, and one end of the worm extends to the outside of the detector rod.
[0009] Preferably, the worm gear is meshed with the worm, and the worm gear is rotatably connected to the inner wall of the detector rod via a rotating shaft, with a transmission ratio of 1:50 between the worm gear and the worm.
[0010] Preferably, one side of the arc-shaped plate is fixedly connected to the worm gear via a coupling shaft, and the upper end of the angle rod is rotatably connected to the other side of the arc-shaped plate. The arc of the arc-shaped plate is ≤170° and ≥150°.
[0011] Preferably, one end of the support shaft is fixedly connected to the outer side of the lower half of the angle rod, and there are two support shafts, which are symmetrically distributed.
[0012] Preferably, the outer side of the middle part of the connecting rod is rotatably connected to the other end of the support shaft, and there are two connecting rods, which are symmetrically distributed.
[0013] Preferably, there are two support rods, which are symmetrically distributed. Both ends of the support rods are rotatably connected to the connecting rod. One end of the rotating rod is rotatably connected to the outer side of the middle part of the support rod, and the inner wall of the detector rod is rotatably connected to the other end of the rotating rod.
[0014] Preferably, the support rod and the connecting rod form a quadrilateral, and the angle rod is located inside the quadrilateral.
[0015] Compared with the prior art, the present invention provides a probe adjustment structure for a metal detector, which has the following advantages:
[0016] 1. This utility model, by setting the worm gear and worm transmission ratio to 1:50, ensures that when the worm rotates one revolution, the worm gear drives the angle rod to rotate 7.2°, thereby enabling the metal detector probe to achieve a precise effect when adjusting the angle. At the same time, based on the principle of worm gear and worm, it can ensure that it remains stable during use due to vibration or other reasons, thus achieving a stable effect after angle adjustment.
[0017] 2. This utility model, by setting the arc angle of the arc plate to ≤170° and ≥150°, can satisfy the tilt angle rotation of the angle rod, thereby ensuring that the metal detector probe can rotate 360°. When the arc angle of the arc plate is too large, the rotation range of the angle rod is small, resulting in an insufficient rotation range of the metal detector probe, making the angle adjustment of the metal detector probe meaningless. At the same time, when the arc angle of the arc plate is too small, the rotation angle range of the angle rod is large, resulting in an excessive tilt and rotation angle range of the metal detector probe, making it impossible for the metal detector probe to be parallel to the ground, causing the metal detector to malfunction. Thus, the metal detector probe angle adjustment can achieve a multi-angle effect.
[0018] 3. This utility model, by setting a support shaft, can support the angle rod to maintain its tilt angle, and at the same time support the rotation of the angle rod, thereby achieving the effect of multi-angle adjustment of the metal detector probe.
[0019] 4. This utility model, by setting an angle rod, can change the rotation of the worm gear to tilting rotation. Through its tilting rotation, the metal detector probe can be rotated at multiple angles, allowing the metal detector probe to be adjusted according to different environments, thereby achieving the effect of multi-angle adjustment of the metal detector probe.
[0020] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall structure of the probe adjustment structure of a metal detector proposed in this utility model.
[0022] Figure 2 This is a cross-sectional schematic diagram of the probe adjustment structure of a metal detector proposed in this utility model.
[0023] Figure 3 This is a schematic diagram of the angle adjustment component of the probe adjustment structure of a metal detector proposed in this utility model.
[0024] Figure 4 This is a schematic diagram of the support component structure of the probe adjustment structure of a metal detector proposed in this utility model.
[0025] In the diagram: 1. Detector rod; 2. Worm gear; 3. Support rod; 5. Worm wheel; 6. Rotating rod; 7. Arc plate; 8. Angle rod; 9. Connecting rod; 10. Support shaft. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0027] Example: A probe adjustment structure for a metal detector, such as... Figure 1 - Figure 4 As shown, it includes a detector rod 1, and a worm gear 2 is provided inside the lower half of the detector rod 1. The worm gear 2 is connected to a worm wheel 5.
[0028] An arc-shaped plate 7 is provided at the lower end of the worm gear 5. An angle rod 8 is connected to one side of the arc-shaped plate 7. A support shaft 10 is connected to the outer side of the lower half of the angle rod 8. A connecting rod 9 is connected to one end of the support shaft 10. Support rods 3 are connected to both ends of the connecting rod 9. A rotating rod 6 is connected to the outer side of the support rod 3. One end of the rotating rod 6 is connected to the inner wall of the detector rod 1.
[0029] When the angle of the metal detector probe needs to be adjusted, the rotating handle is turned, and the worm gear 2 drives the worm wheel 5 to rotate. At the same time, the arc plate 7 rotates through the connecting shaft, and the angle rod 8 rotates. When the angle rod 8 is about to start rotating, the force of the angle rod 8 connected to the arc plate 7 can be transmitted to the support shaft 10 through the other end of the angle rod 8. At this time, the support shaft 10 is under pressure and tilts to one side. The connecting rod 9 is under pressure and begins to pull the support rod 3 to tilt to one side. At the same time, the support rod 3 rotates on the rotating rod 6, and the angle rod 8 continues to rotate. In this rotation mode, one end of the angle rod 8 can drive the detector probe to perform a 360° angle adjustment.
[0030] like Figure 1 - Figure 4 As shown, the worm gear 2 rotates inside the lower half of the detector rod 1, and one end of the worm gear 2 extends to the outside of the detector rod 1.
[0031] The worm gear 5 is meshed with the worm 2, and the worm gear 5 is rotatably connected to the inner wall of the detector rod 1 through a rotating shaft. The transmission ratio between the worm gear 5 and the worm 2 is 1:50.
[0032] A rotating handle is fixedly installed at one end of the worm 2 extending to the outside of the detector rod 1. The shape of the rotating handle is not limited. The transmission ratio is equal to the number of teeth of the worm wheel and the number of worm threads. Since the worm wheel 5 would be too blurry when the teeth are too close together, the worm wheel 5 and worm 2 are shown in a simplified manner in the figure.
[0033] According to the formula above, when the worm gear 2 rotates 50 times, the worm wheel 5 rotates one time. Conversely, when the worm gear 2 rotates one time, the worm wheel 5 can only rotate 1 / 50 of a rotation. Based on the rotation angle calculation, one rotation equals 360°. Therefore, the rotation angle of the worm wheel 5 is: 360° × (1 / 50) = 7.2°. Thus, when the worm gear 2 rotates one time, the worm wheel 5 drives the angle rod 8 to rotate by 7.2°. This allows the metal detector to maintain accurate positioning during precision metal detection and archaeological exploration. At the same time, according to the worm gear principle, after the angle is adjusted, the probe of the metal detector cannot rotate arbitrarily, ensuring stability during use even under vibration or other reasons, thereby achieving a stable effect after angle adjustment.
[0034] like Figure 1 - Figure 4 As shown, one side of the arc plate 7 is fixedly connected to the worm gear 5 via a connecting shaft, and the upper end of the angle rod 8 is rotatably connected to the other side of the arc plate 7. The arc of the arc plate 7 is ≤170° and ≥150°.
[0035] One end of the support shaft 10 is fixedly connected to the outer side of the lower half of the angle rod 8. There are two support shafts 10, which are symmetrically distributed.
[0036] The outer side of the middle part of the connecting rod 9 is rotatably connected to the other end of the support shaft 10, and there are two connecting rods 9, which are symmetrically distributed.
[0037] There are two support rods 3, which are symmetrically distributed. Both ends of the support rods 3 are rotatably connected to the connecting rods 9. One end of the rotating rod 6 is rotatably connected to the outer side of the middle part of the support rod 3, and the inner wall of the detector rod 1 is rotatably connected to the other end of the rotating rod 6.
[0038] The support rod 3 and the connecting rod 9 form a quadrilateral shape, and the angle rod 8 is located inside the quadrilateral.
[0039] The arc angle of the arc plate 7 can satisfy the tilt angle rotation of the angle rod 8, thus ensuring that the metal detector probe can rotate 360°. When the arc angle of the arc plate 7 is too large, the rotation range of the angle rod 8 is small, resulting in a small rotation range of the metal detector probe, making the angle adjustment of the metal detector probe meaningless. At the same time, when the arc angle of the arc plate 7 is too small, the rotation angle range of the angle rod 8 is large, resulting in an excessive tilt and rotation angle range of the metal detector probe, making it impossible for the metal detector probe to be parallel to the ground, thus causing the metal detector to malfunction. Meanwhile, the support shaft 10 can support the angle rod 8 to maintain its tilt angle and can also support the rotation of the angle rod 8, thus ensuring the angle adjustment of the metal detector probe. Furthermore, the quadrilateral shape formed by the support rod 3 and the connecting rod 9, according to the principle of quadrilateral instability, allows it to deform and rotate relative to each other under the rotation of the angle rod 8, thus ensuring the angle adjustment of the metal detector probe.
[0040] Working principle: When the angle of the metal detector probe needs to be adjusted, first, rotate the rotating handle, the worm gear 2 drives the worm wheel 5 to rotate, the arc plate 7 starts to rotate, the angle rod 8 rotates, and at the same time the support shaft 10 and the rotating rod 6 rotate. At this time, the metal detector probe rotates, thereby completing the adjustment of the metal detector probe angle.
[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A probe adjustment structure of a metal detector comprising a detector rod (1), characterized in that, The lower half of the detector rod (1) is internally provided with a worm (2), and the worm (2) is connected with a worm gear (5); The lower end of the worm gear (5) is provided with an arc plate (7), one side of the arc plate (7) is connected with an angle rod (8), the lower half of the outer side of the angle rod (8) is connected with a support shaft (10), one end of the support shaft (10) is connected with a connecting rod (9), both ends of the connecting rod (9) are connected with a support rod (3), the outer side of the support rod (3) is connected with a rotating rod (6), one end of the rotating rod (6) is connected with the inner wall of the detector rod (1).
2. The probe adjusting structure of a metal detector according to claim 1, wherein The worm (2) rotates in the lower half of the detector rod (1), and one end of the worm (2) extends to the outside of the detector rod (1).
3. The probe adjustment structure of a metal detector according to claim 2, wherein The worm gear (5) is meshed with the worm (2), and the worm gear (5) is rotatably connected with the inner wall of the detector rod (1) through a rotating shaft, and the transmission ratio of the worm gear (5) and the worm (2) is 1:
50.
4. The probe adjustment structure of a metal detector according to claim 1, wherein One side of the arc plate (7) is fixedly connected with the worm gear (5) through a connecting shaft, the upper end of the angle rod (8) is rotatably connected with the other side of the arc plate (7), and the arc of the arc plate (7) is ≤170° and ≥150°.
5. The probe adjustment structure of a metal detector according to claim 4, wherein One end of the support shaft (10) is fixedly connected with the outer side of the lower half of the angle rod (8), and the support shaft (10) is two and symmetrically distributed.
6. The probe adjustment structure of a metal detector according to claim 5, wherein The outer side of the middle of the connecting rod (9) is rotatably connected with the other end of the support shaft (10), and the connecting rod (9) is two and symmetrically distributed.
7. The probe adjustment structure of a metal detector according to claim 6, wherein The support rod (3) is two and symmetrically distributed, both ends of the support rod (3) are rotatably connected with the connecting rod (9), one end of the rotating rod (6) is rotatably connected with the outer side of the middle of the support rod (3), and the inner wall of the detector rod (1) is rotatably connected with the other end of the rotating rod (6).
8. The probe adjustment structure of a metal detector according to claim 7, wherein The support rod (3) and the connecting rod (9) form a quadrilateral state, and the angle rod (8) is located in the interior of the quadrilateral.