Portable metal detector with high pressure interference resistant structure

Abstract

The utility model provides a portable metal detector with high pressure interference structure of resisting, including bottom frame, still including two ends respectively with the bottom frame connection's middle frame, one end is vertically arranged on the bottom frame a plurality of stand poles, be provided with metal detector body on the middle frame, the other end of stand pole is provided with coil clamping block, a plurality of coil clamping blocks between the around of separablely provided with high pressure coil, the end of high pressure coil with metal detector body separablely connected, the bottom frame around is provided with detection coil, the end of detection coil with metal detector body separablely connected. The utility model provides a portable metal detector with high pressure interference structure of resisting, not only has realized metal detector to resist the interference of external high pressure, and metal detector's operation is convenient and fast, is small and portable after folding storage, has improved metal detector use reliability and portability.

Description

Technical Field

[0001] This utility model relates to the field of metal detector technology, specifically to a portable metal detector with an anti-high voltage interference structure. Background Technology

[0002] Metal detectors, as commonly used detection devices, are widely applied in fields such as security inspection, mineral exploration, archaeological excavation, and industrial inspection. Traditional metal detectors typically consist of a detection coil, a signal processing unit, and a display mechanism. They identify and locate metal targets by sensing changes in the electromagnetic field caused by a metallic object through the detection coil. However, when operating in high-voltage environments (such as near high-voltage transmission lines, substations, or industrial sites with strong electromagnetic interference), traditional metal detectors are susceptible to external electromagnetic interference, leading to decreased detection sensitivity and increased false alarm rates. Chinese invention patent CN109358369B discloses a three-dimensional coil-type anti-electromagnetic interference pulse metal detector, consisting of a detector, a secondary unit, and a main unit. The detector includes a detection frame, an anti-external interference coil, and a detection coil; the detection frame consists of an upper ring frame, a lower ring frame, and at least one insulating connecting rod. The anti-external interference coil is fixed to the upper ring frame; the detection coil is fixed to the lower ring frame. The secondary unit is directly connected to the anti-external interference coil and the detection coil. The secondary unit is connected to the main unit. The above solution uses two sets of coils to achieve differential mode suppression of the signal, thereby canceling the interference of external signals and improving the detection accuracy of the metal detector. This enables it to make accurate detections even in environments with complex interference sources (such as high-voltage lines, base station towers, etc.).

[0003] However, in the aforementioned existing technologies, the setting of anti-high voltage coils to resist external high voltage interference often results in the metal detector being bulky, making it difficult to quickly adjust the shape of the metal detector to meet storage and carrying requirements. The portability and operational flexibility of the metal detector are poor. This solution addresses this technical problem. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a portable metal detector with an anti-high voltage interference structure. A detection coil is wound on the bottom frame, and an anti-high voltage coil is wound on the coil holder of the upright. The upright and the bottom frame are hinged by two hinge blocks, and the middle frame and the bottom frame are hinged by one hinge seat. Both the detection coil and the anti-high voltage coil are electrically connected to the metal detector body. This not only enables the metal detector to resist external high voltage interference, but also makes the metal detector easy and quick to operate. It is compact and portable when folded and stored, improving the reliability and portability of the metal detector.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a portable metal detector with an anti-high voltage interference structure, including a base frame, a middle frame connected to the base frame at both ends, and a plurality of uprights vertically arranged on the base frame at one end. A metal detector body is arranged on the middle frame, and a coil clamp is arranged at the other end of the uprights. An anti-high voltage coil is detachably wound between the plurality of coil clamps. The end of the anti-high voltage coil is detachably connected to the metal detector body. A detection coil is wound on the base frame, and the end of the detection coil is detachably connected to the metal detector body.

[0006] The middle frame is provided with hinge seats at both ends, the bottom frame is hinged to the hinge seats, and a plurality of hinge blocks are provided on the bottom frame. One end of the upright is hinged to the hinge blocks.

[0007] The other end of the pole is provided with a limiting sleeve, and a connecting rod is slidably inserted through the inner side of the limiting sleeve. The coil clamp is provided at the end of the connecting rod, and a locking ring for locking the connecting rod is provided on the limiting sleeve.

[0008] The limiting sleeve is rotatably mounted on the upright, and the upright is provided with a locking element for locking the limiting sleeve.

[0009] The side of the second hinge block is provided with a locking component for locking the angle of the upright. The locking component includes a connecting shaft on the second hinge block and a connecting block rotatably mounted on the connecting shaft. The upright is connected to the connecting block. The outer side of the connecting shaft is provided with an external thread, and a hand-tightening nut for pressing and fixing the connecting block is sleeved on the outer side of the external thread.

[0010] A rubber gasket is provided between the hinge block 2 and the connecting block.

[0011] The bottom frame includes two bottom supports that are respectively hinged to the first hinge seat. Each bottom support includes two horizontal supports with one end connected to the first hinge seat, and a longitudinal support that is connected between the two horizontal supports. The longitudinal support and the horizontal supports are hinged together by the second hinge block.

[0012] The hinge block 2 is provided with a locking component 2 for locking the angles of the horizontal brace and the vertical brace.

[0013] The middle frame includes two upright supports that are fixedly connected to the first hinge seat, and a main support that is connected to the upright supports at both ends. The metal detector body is disposed on the main support. A second hinge seat is disposed between the upright support and the main support. The upright support and the main support are hinged through the second hinge seat.

[0014] The vertical support, the main support, the horizontal support, the longitudinal support, and the upright are all telescopic structures.

[0015] The horizontal and vertical supports are provided with fixing clips for fixing the detection coil, and one of the vertical poles is provided with a fixing clip for fixing the high-voltage coil.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] (1) A detection coil is wound on the bottom frame, and an anti-high voltage coil is wound on the coil clip of the upright. The upright and the bottom frame are hinged by two hinge blocks, and the middle frame and the bottom frame are hinged by one hinge seat. The detection coil and the anti-high voltage coil are electrically connected to the metal detector body. The anti-high voltage coil and the detection coil form an anti-high voltage interference structure, which not only enables the metal detector to resist external high voltage interference, but also makes the operation of the metal detector convenient and quick. After folding and storing, it is small and portable, which improves the reliability and portability of the metal detector.

[0018] (2) The angle of the upright rod is fixed by tightening the connecting block by hand-tightening the nut, the angle of the limiting sleeve is fixed by locking part one, and the distance between the four coil clamps is adjusted by pulling the connecting rod in the limiting sleeve, thereby tensioning the high voltage coil. After unfolding, the coverage area is larger, the unfolding of the high voltage coil is convenient and quick, and the reliability of metal detector detection is improved.

[0019] (3) The vertical support, main support, horizontal support, longitudinal support and upright are all telescopic structures. They are all telescopic structures with inner tube and outer tube inserted. A locking ring is set between the inner tube and the outer tube. The length of each support structure can be adjusted and fixed by the locking ring, so that the metal detector is more compact after folding and more convenient to carry. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the external structure of the hinge block 2 of this utility model;

[0022] Figure 3 This is an exploded view of the structure of the second hinge block of this utility model;

[0023] Figure 4 This is a schematic diagram of the connection structure between the high-voltage coil and the detection coil of this utility model and the metal detector body;

[0024] Figure 5 This is a schematic diagram of the folding process of this utility model. Figure 1 ;

[0025] Figure 6This is a schematic diagram of the folding process of this utility model. Figure 2 ;

[0026] Figure 7 This is a structural schematic diagram of the folded form of this utility model.

[0027] In the diagram: 1. Base frame; 11. Hinge block two; 12. Base support; 121. Horizontal support; 122. Longitudinal support; 13. Locking component two; 2. Middle frame; 21. Hinge seat one; 22. Vertical support; 23. Main support; 24. Hinge seat two; 3. Vertical pole; 31. Coil clip; 32. Limiting sleeve; 321. Connecting rod; 33. Locking component one; 4. Metal detector body; 41. High-voltage coil; 42. Detection coil; 5. Locking component one; 51. Connecting shaft; 52. Connecting block; 53. Hand-tightening nut; 54. Rubber washer; 61. Fixing clip one; 62. Fixing clip two. Detailed Implementation

[0028] To more clearly illustrate the technical features of this solution, the following detailed implementation method will be used to explain the solution.

[0029] See Figures 1-7 A portable metal detector with a high voltage interference resistant structure includes a base frame 1, a middle frame 2 connected to the base frame 1 at both ends, and several uprights 3 vertically mounted on the base frame 1 at one end. A metal detector body 4 is mounted on the middle frame 2, and a coil clamp 31 is mounted on the other end of the uprights 3. A high voltage resistant coil 41 is detachably wound between the several coil clamps 31. The end of the high voltage resistant coil 41 is detachably connected to the metal detector body 4. A detection coil 42 is wound on the base frame 1, and the end of the detection coil 42 is detachably connected to the metal detector body 4.

[0030] Specifically, the coil holder 31 is provided with an opening slot for accommodating the high-voltage coil 41, and the high-voltage coil 41 is detachably disposed in the opening slot.

[0031] Furthermore, the metal detector body 4 is connected to the anti-high voltage coil 41 and the detection coil 42 respectively. The anti-high voltage coil 41 and the detection coil 42 form an anti-high voltage interference structure. The principle of the anti-high voltage coil 41 and the detection coil 42 forming an anti-high voltage interference structure with the metal detector body 4 is achieved by using existing technology, which will not be described in detail here.

[0032] The middle frame 2 has hinge seats 21 at both ends, the bottom frame 1 is hinged to the hinge seats 21, and several hinge blocks 11 are provided on the bottom frame 1. One end of the upright 3 is hinged to the hinge blocks 11.

[0033] The other end of the pole 3 is provided with a limiting sleeve 32, and a connecting rod 321 is slidably passed through the inner side of the limiting sleeve 32. The coil locking block 31 is provided at the end of the connecting rod 321, and a locking ring for locking the connecting rod 321 is provided on the limiting sleeve 32.

[0034] The limiting sleeve 32 is rotatably mounted on the upright 3, and the upright 3 is provided with a locking element 33 for locking the limiting sleeve 32.

[0035] The side of the hinge block 2 11 is provided with a locking component 1 5 for locking the angle of the upright 3. The locking component 1 5 includes a connecting shaft 51 provided on the hinge block 2 11 and a connecting block 52 rotatably provided on the connecting shaft 51. The upright 3 is connected to the connecting block 52. The outer side of the connecting shaft 51 is provided with an external thread, and a hand-tightening nut 53 for pressing and fixing the connecting block 52 is sleeved on the outer side of the external thread.

[0036] A rubber gasket 54 is provided between the hinge block 2 11 and the connecting block 52.

[0037] The bottom frame 1 includes two bottom supports 12 that are respectively hinged to the hinge seat 21. The bottom support 12 includes two horizontal supports 121 that are respectively connected to the hinge seat 21 at one end, and a longitudinal support 122 that is connected between the two horizontal supports 121. The longitudinal support 122 and the horizontal support 121 are hinged by the hinge block 11.

[0038] The hinge block 11 is provided with a locking component 13 for locking the angles of the cross brace 121 and the longitudinal brace 122.

[0039] The middle frame 2 includes two upright supports 22 that are fixedly connected to the first hinge seat 21 respectively, and a main support 23 that is connected to the upright supports 22 at both ends respectively. The metal detector body 4 is mounted on the main support 23. A second hinge seat 24 is provided between the upright supports 22 and the main support 23. The upright supports 22 and the main support 23 are hinged through the second hinge seat 24.

[0040] The vertical support 22, main support 23, horizontal support 121, longitudinal support 122 and upright 3 are all telescopic structures. Specifically, they are all telescopic structures with inner and outer tubes inserted into each other. A locking ring is provided between the inner and outer tubes. The length adjustment and fixation of each support structure are achieved by the locking ring. The locking ring is implemented using existing technology and will not be described in detail here.

[0041] The horizontal support 121 and the vertical support 122 are provided with a fixing clip 61 for fixing the detection coil 42, and one of the uprights 3 is provided with a fixing clip 62 for fixing the high voltage coil 41. The fixing clip 61 is provided with a slot for accommodating the detection coil 42, and the fixing clip 62 is provided with a slot for accommodating the high voltage coil 41.

[0042] The specific working process of this utility model:

[0043] First, remove the metal detector, see [link / reference]. Figure 7 The metal detector is in its folded state. The unfolding process of the metal detector is as follows: See Figure 6 First, the vertical support 22 and the horizontal support 121 are gradually extended along the hinge seat 24 and the hinge block 21 respectively until they are at a 90-degree angle to the main support 23. At this time, the angle between the horizontal support 121 and the vertical support 122 is also 90 degrees. Then, the horizontal support 121 and the vertical support 122 are locked by the locking component 2 13. Specifically, the locking component 2 13 includes a connecting plate that is oscillating on the hinge block 2 11. The connecting plate is provided with a pin, and the horizontal support 121 is provided with a pin hole. By oscillating the connecting plate, the pin is inserted into the pin hole of the hinge block 2 11 and the horizontal support 121 in sequence, thereby fixing the angle between the horizontal support 121 and the vertical support 122. Of course, the locking component 2 13 can also adopt various structural forms to fix the angle between the horizontal support 121 and the vertical support 122. All structures that fix the angle between the horizontal support 121 and the vertical support 122 are within the scope of protection of this solution.

[0044] After the four horizontal supports 121 on both sides are extended to form a 90-degree angle with the vertical support 122 and locked by locking component 2 13, see [link / details]. Figure 5 The cross brace 121 is rotated to 90 degrees along the hinge seat 21. The hinge seat 21 is a hinge seat with a limiting device. After the cross brace 121 is rotated to 90 degrees with the vertical support 22, it naturally hangs down to 90 degrees with the vertical support 22 under the overall weight of the bottom support 12 and the support of the limiting device. The hinge seat 21 is implemented using existing technology and will not be described in detail here. Furthermore, a locking mechanism is provided on the hinge seat 21 to fix the angle of the bottom support 12, making the metal detector more stable and reliable.

[0045] After the base support 12 is fully extended, adjust the lengths of the upright support 22, main support 23, horizontal support 121, and longitudinal support 122 respectively, and then lock them with locking rings. Then rotate the upright 3 along the hinge block 11 until it is perpendicular to the horizontal support 121, and then tighten the hand nut 53. The hand nut 53 presses the connecting block 52 through the rubber washer 54, thereby fixing the angle of the upright 3. After the angles of the four uprights 3 are firmly fixed, adjust the length of the upright 3 so that the limit sleeve 32 is higher than the main support 23 of the middle frame 2, and then lock it with locking rings.

[0046] The detection coil 42 is fixed to the bottom frame 1. Specifically, the side part of the detection coil 42 is wound around and passed through the fixing clip 61. The detection coil 42 is fixed by the fixing clip 61. Then the end of the detection coil 42 is connected to the metal detector body 4.

[0047] Loosen the locking element 33 on each upright 3 in sequence. The locking element 33 releases the limiting sleeve 32. After rotating the limiting sleeve 32 to a 45-degree angle with the horizontal brace 121 and the vertical brace 122 respectively, the locking element 33 fixes the limiting sleeve 32. The locking element 33 is implemented using existing technology. Its function is to lock and release the limiting sleeve 32. Various structural forms for fixing the limiting sleeve 32 are used to achieve the fixing and release of the limiting sleeve 32, all of which are within the protection scope of this solution.

[0048] Subsequently, the high-voltage coils 41 are sequentially fitted into the coil clips 31 on the connecting rods 321, forming a closed ring. A signal cable extends from the side of the high-voltage coil 41, with both ends electrically connected to the metal detector body 4 and the high-voltage coils 41, respectively. After the sides of the high-voltage coils 41 are secured by the coil clips 31, the locking rings on the limiting sleeves 32 are loosened, and the four connecting rods 321 are pulled out to expand and tension the high-voltage coils 41. The locking rings are then tightened to secure the connecting rods 321 firmly. The final unfolded form of the metal detector is shown in the figure. Figure 1 .

[0049] Once the metal detector body 4 is activated, the main support 23 can be held within the base frame 1 to perform metal detection. The metal detector body 4 consists of two main units. The metal detector body 4 is equipped with a sensitivity knob, a ground balance knob, a reset button, a dual-main unit switch button, a power button, a fine-tuning knob, a power interface, and an earphone interface. The operation and adjustment of the metal detector are achieved by operating the knobs and buttons, thereby enabling the metal detector to detect metal under high-voltage conditions. The high-voltage interference resistance of the metal detector body 4 is achieved by using existing technology through the detection coil 42 and the high-voltage resistance coil 41, which will not be described in detail here.

[0050] After use, remove the high-voltage coil 41 and the detection coil 42, and then fold the high-voltage interference-resistant metal detector in the unfolded manner. Figure 7 The shape shown.

[0051] A detection coil 42 is wound on the bottom frame 1, and an anti-high voltage coil 41 is wound on the coil clamp 31 of the upright 3. The upright 3 is hinged to the bottom frame 1 through hinge block 2 11, and the middle frame 2 is hinged to the bottom frame 1 through hinge seat 1 21. Both the detection coil 42 and the anti-high voltage coil 41 are electrically connected to the metal detector body 4. Differential mode suppression of the signal is achieved through the two sets of coils, the detection coil 42 and the anti-high voltage coil 41. The anti-high voltage coil 41 and the detection coil 42 form an anti-high voltage interference structure, thereby canceling the interference of external signals and improving the detection accuracy of the metal detector. It not only enables the metal detector to resist the interference of external high voltage, but also makes the operation of the metal detector convenient and quick. After folding and storing, it is small and portable, which improves the reliability and portability of the metal detector.

[0052] The angle of the upright rod 3 is fixed by tightening the connecting block 52 with the hand-tightening nut 53, and the angle of the limiting sleeve 32 is fixed by the locking part 33. The spacing of the four coil locking blocks 31 is adjusted by pulling the connecting rod 321 in the limiting sleeve 32, thereby tensioning the anti-high voltage coil 41. After unfolding, the coverage area is larger, and the unfolding of the anti-high voltage coil 41 is convenient and quick, improving the reliability of the metal detector.

[0053] The upright support 22, main support 23, horizontal support 121, longitudinal support 122 and upright pole 3 are all telescopic structures, all of which are telescopic structures with inner and outer tubes inserted into each other. A locking ring is set between the inner and outer tubes. The length of each support structure can be adjusted and fixed by the locking ring, so that the metal detector is more compact after folding and more convenient to carry.

[0054] Technical features not described in detail in this solution are based on conventional operations and general understanding of those skilled in the art, and are therefore not elaborated upon here. Technical features not described in this utility model can be implemented using existing technology, and will not be repeated here. Of course, the above description is not intended to limit this utility model, nor is it limited to the examples given above. Any changes, modifications, additions, or substitutions made by those skilled in the art within the scope of this utility model should also fall within the protection scope of this utility model.

Claims

1. A portable metal detector with a high-voltage interference resistant structure, comprising a base frame (1), characterized in that, It also includes a middle frame (2) connected to the bottom frame (1) at both ends, and several uprights (3) vertically set on the bottom frame (1) at one end. A metal detector body (4) is set on the middle frame (2), and a coil clamp (31) is set on the other end of the uprights (3). A high-voltage coil (41) is detachably wound between several coil clamps (31). The end of the high-voltage coil (41) is detachably connected to the metal detector body (4). A detection coil (42) is wound on the bottom frame (1). The end of the detection coil (42) is detachably connected to the metal detector body (4). The middle frame (2) is provided with hinge seat 1 (21) at both ends, the bottom frame (1) is hinged on the hinge seat 1 (21), and a plurality of hinge blocks 2 (11) are provided on the bottom frame (1). One end of the upright (3) is hinged on the hinge block 2 (11).

2. The portable metal detector with anti-high voltage interference structure according to claim 1, characterized in that, The other end of the pole (3) is provided with a limiting sleeve (32), and a connecting rod (321) is slidably passed through the inner side of the limiting sleeve (32). The coil locking block (31) is provided at the end of the connecting rod (321), and a locking ring for locking the connecting rod (321) is provided on the limiting sleeve (32).

3. The portable metal detector with anti-high voltage interference structure according to claim 2, characterized in that, The limiting sleeve (32) is rotatably mounted on the upright (3), and the upright (3) is provided with a locking element (33) for locking the limiting sleeve (32).

4. The portable metal detector with anti-high voltage interference structure according to claim 1, characterized in that, The side of the hinge block 2 (11) is provided with a locking component 1 (5) for locking the angle of the upright (3). The locking component 1 (5) includes a connecting shaft (51) provided on the hinge block 2 (11) and a connecting block (52) rotatably provided on the connecting shaft (51). The upright (3) is connected to the connecting block (52). The outer side of the connecting shaft (51) is provided with an external thread, and a hand-tightening nut (53) for pressing and fixing the connecting block (52) is sleeved on the outer side of the external thread.

5. The portable metal detector with anti-high voltage interference structure according to claim 4, characterized in that, A rubber gasket (54) is provided between the hinge block 2 (11) and the connecting block (52).

6. The portable metal detector with anti-high voltage interference structure according to claim 1, characterized in that, The bottom frame (1) includes two bottom supports (12) that are respectively hinged to the first hinge seat (21). The bottom support (12) includes two horizontal supports (121) that are respectively connected to the first hinge seat (21) at one end, and a longitudinal support (122) that is connected between the two horizontal supports (121). The longitudinal support (122) and the horizontal support (121) are hinged through the second hinge block (11).

7. The portable metal detector with anti-high voltage interference structure according to claim 6, characterized in that, The hinge block 2 (11) is provided with a locking component 2 (13) for locking the angle of the cross brace (121) and the longitudinal brace (122).

8. The portable metal detector with anti-high voltage interference structure according to claim 6, characterized in that, The middle frame (2) includes two upright supports (22) that are fixedly connected to the first hinge seat (21) respectively, and a main support (23) that is connected to the upright supports (22) at both ends respectively. The metal detector body (4) is disposed on the main support (23). A second hinge seat (24) is disposed between the upright support (22) and the main support (23). The upright support (22) and the main support (23) are hinged through the second hinge seat (24).

9. The portable metal detector with anti-high voltage interference structure according to claim 8, characterized in that, The vertical support (22), the main support (23), the horizontal support (121), the longitudinal support (122), and the upright (3) are all telescopic structures.

10. The portable metal detector with anti-high voltage interference structure according to claim 9, characterized in that, The horizontal support (121) and the vertical support (122) are provided with a fixing clip 1 (61) for fixing the detection coil (42), and one of the uprights (3) is provided with a fixing clip 2 (62) for fixing the high voltage coil (41).

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