Metal detector teaching aid

Abstract

The invention belongs to the technical field of teaching appliances, and discloses a metal detector teaching appliance, which comprises an adjusting mechanism, the adjusting mechanism comprises a knob, the knob is fixedly connected with a turntable, one side of the turntable close to the knob is fixedly connected with a first fluted disc, one side of the first fluted disc far away from the turntable is clamped with a second fluted disc, and the second fluted disc is fixedly connected with the first fluted disc. The metal detector teaching aid comprises a rotary table, a rotary knob is fixedly connected to the rotary table, a spring is fixedly connected to the side, away from the rotary knob, of the rotary table, a rotating shaft is fixedly connected to the side, away from the rotary knob, of the rotary table, two clamping blocks are fixedly connected to the rotating shaft, the rotating shaft is connected with a rotating cylinder in a clamped mode through the clamping blocks, and a clamping groove is formed in the rotating cylinder. The device is convenient to fold by arranging the knob and the telescopic assembly, so that the device is convenient to carry and store, meanwhile, different detection environments and angles can be simulated by adjusting the rotation angle of the detection head and the extension length of the telescopic rod in teaching demonstration, and the interestingness and practicability of teaching are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of teaching tools, in particular to a metal detector teaching tool. Background Art

[0002] In today's education system, the combination of theory and practice has been given unprecedented attention, especially in the field of STEM (science, technology, engineering, mathematics) education, which emphasizes stimulating students' interest in learning and cultivating their innovative thinking and problem-solving skills through hands-on operation and project practice. The emergence of metal detector teaching aids is a response to this educational trend, providing intuitive and interactive teaching tools for subjects such as physics, electronics, and geology. The device usually adopts a simplified design and operation process to ensure that students can get started quickly, while retaining the core principles and technologies of real metal detectors, such as electromagnetic induction and signal processing. It simulates the metal detection process, allowing students to understand the principles of electromagnetic fields during operation and perceive the differences in the responses of different metals to detection signals. It not only deepens the understanding of physical knowledge, but also exercises their practical operation ability and teamwork spirit. In teaching applications, metal detector teaching aids are widely used in school laboratories, scientific interest groups, outdoor practical teaching and other scenarios.

[0003] Currently, most of the metal detector teaching aids on the market are split type, which requires temporary assembly when in use and is inconvenient to use. Some integrated devices are large and cannot be folded or retracted, making them inconvenient to carry and store. At the same time, the detection head is easily damaged during movement and storage. Therefore, we propose a metal detector teaching aid. Summary of the invention

[0004] In order to solve the problem that most of the above-mentioned background technologies are split-type, need temporary assembly when in use, and are inconvenient to use, while some integrated devices are large and cannot be folded or retracted, which makes them inconvenient to carry and store, and the detection head is easily damaged during movement and storage, the present invention provides a metal detector teaching aid.

[0005] To achieve the above object, the present invention provides the following technical solution: a metal detector teaching tool, comprising an adjustment mechanism, a main body mechanism is arranged on the adjustment mechanism, and a control mechanism is arranged above the main body mechanism;

[0006] The adjustment mechanism includes a knob, a turntable is fixedly connected to the knob, a first toothed disc is fixedly connected to a side of the turntable close to the knob, a side of the first toothed disc away from the turntable is clamped with a second toothed disc, a side of the turntable away from the knob is fixedly connected to a spring, a side of the turntable away from the knob is fixedly connected to a rotating shaft, two clamping blocks are fixedly connected to the upper part of the rotating shaft, the rotating shaft is clamped with a rotating drum through the clamping blocks, a clamping groove is provided inside the rotating drum, and a detection head is fixedly connected to the rotating drum.

[0007] Preferably, the two clamping blocks are symmetrically distributed with the rotating shaft as the center, the size of the clamping slot is matched with the size of the clamping block, the clamping block and the clamping slot are slidably connected, and the second toothed disc is located between the first toothed disc and the knob.

[0008] Preferably, the main body mechanism comprises a main body shell, a rotation groove is formed on the main body shell, a telescopic cylinder is fixedly connected to a side of the main body shell away from the rotation groove, and a telescopic assembly is fixedly connected to an end of the telescopic cylinder away from the main body shell.

[0009] Preferably, the second toothed disc is fixedly connected to the inner wall of the main shell, the turntable is rotatably connected to the inner wall of the main shell, the knob passes through the inner wall of the main shell and extends to the side of the main shell, and the turntable is elastically connected to the inner wall of the main shell via a spring.

[0010] Preferably, the rotating drum is rotatably connected to the inner wall of the main shell, the detection head penetrates the inner wall of the main shell and extends to the outside of the main shell, and one end of the detection head close to the rotating drum is rotatably connected to the rotating groove.

[0011] Preferably, the control mechanism includes a connecting rod, the bottom of the connecting rod is fixedly connected to a telescopic rod, the top of the connecting rod is fixedly connected to a support plate, one end of the connecting rod close to the support plate is fixedly connected to a hand-held rod, and one end of the connecting rod close to the telescopic rod is fixedly connected to a controller.

[0012] Preferably, the telescopic rod passes through the top of the telescopic assembly and extends to the interior of the telescopic cylinder. The telescopic rod is slidably connected to the telescopic cylinder. The hand-held rod and the controller are both located on the side of the connecting rod close to the detection head, and the support plate is located on the side of the connecting rod away from the detection head.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The present invention facilitates the folding of the device by arranging a knob and a telescopic assembly, making it easy to carry and store. At the same time, in teaching demonstrations, by adjusting the rotation angle of the detection head and the extension length of the telescopic rod, different detection environments and angles can be simulated to increase the interest and practicality of teaching. In addition, because a plurality of right-angled triangular teeth are evenly arranged on the first toothed disc and the second toothed disc, when the turntable rotates in a direction away from the telescopic cylinder, the right-angled sides of the teeth on the first toothed disc will be stuck by the right-angled sides of the teeth on the second toothed disc, so the detection head will not be unfolded due to the influence of gravity or other factors during movement and storage, thereby avoiding damage to the detection head. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the present invention;

[0016] Figure 2 A schematic diagram of the structural relationship between the telescopic rod and the telescopic assembly of the present invention;

[0017] Figure 3 It is a schematic diagram of the structural relationship between the rotating drum and the main body shell of the present invention;

[0018] Figure 4 This is a schematic diagram of the structural relationship between the card block and the card slot of the present invention;

[0019] Figure 5 It is a schematic diagram of the structural relationship between the first gear disc and the second gear disc of the present invention.

[0020] In the figure: 1. adjustment mechanism; 101. knob; 102. turntable; 103. first gear plate; 104. second gear plate; 105. spring; 106. rotating shaft; 107. block; 108. rotating cylinder; 109. slot; 110. detection head; 2. main body mechanism; 201. main body shell; 202. rotating slot; 203. telescopic cylinder; 204. telescopic assembly; 3. control mechanism; 301. connecting rod; 302. telescopic rod; 303. support plate; 304. hand-held rod; 305. controller. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] like Figures 1 to 5 As shown, the present invention provides a metal detector teaching tool, comprising an adjustment mechanism 1, a main body mechanism 2 is arranged on the adjustment mechanism 1, and a control mechanism 3 is arranged above the main body mechanism 2;

[0023] The adjustment mechanism 1 includes a knob 101, to which a turntable 102 is fixedly connected, a first toothed disc 103 is fixedly connected to a side of the turntable 102 close to the knob 101, a side of the first toothed disc 103 away from the turntable 102 is clamped with a second toothed disc 104, a side of the turntable 102 away from the knob 101 is fixedly connected with a spring 105, a side of the turntable 102 away from the knob 101 is fixedly connected with a rotating shaft 106, two clamping blocks 107 are fixedly connected to the upper part of the rotating shaft 106, the rotating shaft 106 is clamped with a rotating cylinder 108 through the clamping blocks 107, a clamping groove 109 is provided inside the rotating cylinder 108, and a detection head 110 is fixedly connected to the rotating cylinder 108.

[0024] The two blocks 107 are symmetrically distributed around the rotating shaft 106. The size of the slot 109 is matched with the size of the block 107. The block 107 and the slot 109 are slidingly connected. The second toothed disc 104 is located between the first toothed disc 103 and the knob 101. A number of right-angled triangular teeth are evenly arranged on the first toothed disc 103 and the second toothed disc 104.

[0025] The above scheme is adopted: because the first toothed disc 103 and the second toothed disc 104 are evenly provided with a plurality of right-angled triangular teeth, when the rotating disc 102 rotates away from the telescopic cylinder 203, the right-angled sides of the teeth on the first toothed disc 103 will be stuck by the right-angled sides of the teeth on the second toothed disc 104, so the detection head 110 will not be unfolded due to the influence of gravity or other factors during the movement and storage process, thereby avoiding the damage to the detection head 110. When the detection head 110 needs to be folded, it only needs to be moved close to the telescopic cylinder 203. 03, and the turntable 102 is driven to rotate. At this time, the first toothed disc 103 on the turntable 102 slides through the inclined surface of the teeth and the inclined surface of the teeth on the second toothed disc 104, and automatically squeezes the turntable 102 to move it toward the direction of the rotating cylinder 108. Then, during the rotation process, the first toothed disc 103 will continue to be engaged with the second toothed disc 104 under the action of the elastic force of the spring 105, so that the detection head 110 does not need to be actively pressed when the knob 101 is folded. The detection head 110 can be folded by just turning it, which is convenient and quick.

[0026] like Figures 1 to 4 As shown, the main mechanism 2 includes a main shell 201, a rotating groove 202 is opened on the main shell 201, a telescopic cylinder 203 is fixedly connected to the side of the main shell 201 away from the rotating groove 202, and a telescopic assembly 204 is fixedly connected to the end of the telescopic cylinder 203 away from the main shell 201. The telescopic assembly 204 includes a plurality of threaded cone plates fixedly connected to the top of the telescopic cylinder 203 and a threaded sleeve threadedly connected thereto, and the plurality of threaded cone plates are circumferentially distributed on the top of the telescopic cylinder 203, the size of the threaded sleeve is larger than the size of the threaded cone plate and the threaded sleeve is located above the threaded cone plate.

[0027] The second gear disk 104 is fixedly connected to the inner wall of the main shell 201, the turntable 102 is rotatably connected to the inner wall of the main shell 201, the knob 101 penetrates the inner wall of the main shell 201 and extends to the side of the main shell 201, the turntable 102 is elastically connected to the inner wall of the main shell 201 through the spring 105, the rotating cylinder 108 is rotatably connected to the inner wall of the main shell 201, the detection head 110 penetrates the inner wall of the main shell 201 and extends to the outside of the main shell 201, and the end of the detection head 110 close to the rotating cylinder 108 is rotatably connected to the rotating groove 202.

[0028] The control mechanism 3 includes a connecting rod 301, the bottom of the connecting rod 301 is fixedly connected to a telescopic rod 302, the top of the connecting rod 301 is fixedly connected to a support plate 303, the end of the connecting rod 301 close to the support plate 303 is fixedly connected to a hand-held rod 304, the end of the connecting rod 301 close to the telescopic rod 302 is fixedly connected to a controller 305, the telescopic rod 302 passes through the top of the telescopic assembly 204 and extends to the inside of the telescopic cylinder 203, the telescopic rod 302 is slidably connected to the telescopic cylinder 203, the hand-held rod 304 and the controller 305 are both located on the side of the connecting rod 301 close to the detection head 110, and the support plate 303 is located on the side of the connecting rod 301 away from the detection head 110.

[0029] The above scheme is adopted: the knob 101 and the telescopic component 204 are set to facilitate the folding of the device, making it easy to carry and store. The threaded sleeve included in the telescopic component 204 is rotated to move it in the direction away from the telescopic tube 203, thereby releasing the pressure exerted by the threaded sleeve on the threaded cone plate, so that the threaded cone plate no longer squeezes the telescopic rod 302 inside it. At this time, the telescopic rod 302 can be slid into the interior of the telescopic tube 203 by adjusting the connecting rod 301, and the telescopic rod 302 can be retracted into the interior of the telescopic tube 203 to reduce the size of the device. At the same time, in teaching demonstrations, by adjusting the rotation angle of the detection head 110 and the extended length of the telescopic rod 302, different detection environments and angles can be simulated to increase the interest and practicality of teaching.

[0030] The working principle and use process of the present invention are as follows: first, the device is moved to the teaching location, and then the knob 101 is pressed in the direction close to the main housing 201, so as to drive the rotating disk 102 to move in the direction close to the rotating cylinder 108, and the spring 105 is squeezed to release the clamping connection between the first toothed disk 103 and the second toothed disk 104, and the knob 101 is rotated in the direction away from the telescopic cylinder 203. Because the clamping block 107 on the rotating shaft 106 is clamped with the rotating cylinder 108, the rotation of the knob 101 will drive the rotating cylinder 108 and the detection head 110 on the rotating cylinder 108 to rotate in the direction away from the telescopic cylinder 203 through the clamping block 107, so that the detection head 110 is unfolded, and then the knob 101 is released. At this time, the rotating disk 102 will move in the direction away from the rotating cylinder 108 under the action of the elastic force of the spring 105, so that the first toothed disk 103 is clamped with the second toothed disk 104, so that the angle of the detection head 110 is fixed;

[0031] At the same time, the threaded sleeve included in the telescopic assembly 204 is rotated to move it away from the telescopic tube 203, thereby releasing the pressure exerted by the threaded sleeve on the threaded cone plate so that the threaded cone plate no longer squeezes the telescopic rod 302 inside it. At this time, pulling the connecting rod 301 can make the telescopic rod 302 slide inside the telescopic tube 203, and adjust the height and position of the connecting rod 301 to make it more suitable for use. Then the teacher needs to put his arm on the support plate 303 and hold the handheld rod 304 to keep the detection head 110 parallel to the ground. Finally, the detection head 110 is started through the controller 305 to perform metal detection on the ground and conduct on-site demonstration teaching.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A metal detector teaching aid, comprising an adjustment mechanism (1), characterized in that: The regulating mechanism (1) is provided with a main body mechanism (2), and a control mechanism (3) is provided above the main body mechanism (2); The adjustment mechanism (1) comprises a knob (101), a rotating disk (102) is fixedly connected to the knob (101), a first toothed disk (103) is fixedly connected to a side of the rotating disk (102) close to the knob (101), a side of the first toothed disk (103) away from the rotating disk (102) is clamped with a second toothed disk (104), a side of the rotating disk (102) away from the knob (101) is fixedly connected to a spring (105), a side of the rotating disk (102) away from the knob (101) is fixedly connected to a rotating shaft (106), two clamping blocks (107) are fixedly connected to the rotating shaft (106), the rotating shaft (106) is clamped with a rotating cylinder (108) through the clamping blocks (107), a clamping groove (109) is provided inside the rotating cylinder (108), and a detection head (110) is fixedly connected to the rotating cylinder (108).

2. The metal detector teaching tool according to claim 1, characterized in that: The two clamping blocks (107) are symmetrically distributed with the rotating shaft (106) as the center, the size of the clamping slot (109) is matched with the size of the clamping block (107), the clamping block (107) and the clamping slot (109) are slidably connected, and the second toothed disc (104) is located between the first toothed disc (103) and the knob (101).

3. The metal detector teaching tool according to claim 1, characterized in that: The main body mechanism (2) comprises a main body shell (201), a rotation groove (202) is provided on the main body shell (201), a telescopic cylinder (203) is fixedly connected to a side of the main body shell (201) away from the rotation groove (202), and a telescopic assembly (204) is fixedly connected to an end of the telescopic cylinder (203) away from the main body shell (201).

4. The metal detector teaching tool according to claim 3, characterized in that: The second toothed disc (104) is fixedly connected to the inner wall of the main housing (201), the rotating disc (102) is rotatably connected to the inner wall of the main housing (201), the knob (101) passes through the inner wall of the main housing (201) and extends to the side of the main housing (201), and the rotating disc (102) is elastically connected to the inner wall of the main housing (201) via a spring (105).

5. The metal detector teaching tool according to claim 4, characterized in that: The rotating drum (108) is rotatably connected to the inner wall of the main shell (201), the detection head (110) penetrates the inner wall of the main shell (201) and extends to the outside of the main shell (201), and one end of the detection head (110) close to the rotating drum (108) is rotatably connected to the rotating groove (202).

6. The metal detector teaching tool according to claim 3, characterized in that: The control mechanism (3) comprises a connecting rod (301), the bottom of the connecting rod (301) is fixedly connected to a telescopic rod (302), the top of the connecting rod (301) is fixedly connected to a support plate (303), one end of the connecting rod (301) close to the support plate (303) is fixedly connected to a hand-held rod (304), and one end of the connecting rod (301) close to the telescopic rod (302) is fixedly connected to a controller (305).

7. The metal detector teaching tool according to claim 6, characterized in that: The telescopic rod (302) passes through the top of the telescopic assembly (204) and extends to the inside of the telescopic cylinder (203). The telescopic rod (302) is slidably connected to the telescopic cylinder (203). The hand-held rod (304) and the controller (305) are both located on a side of the connecting rod (301) close to the detection head (110), and the support plate (303) is located on a side of the connecting rod (301) away from the detection head (110).

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