Metal detector convenient for replacing detection piece

Abstract

The utility model belongs to the technical field of metal detection, and discloses a metal detector convenient to replace a detection piece, which comprises a conveying belt, a mounting seat and a metal detector, the conveying belt is mounted on the inner side of the mounting seat, the metal detector is mounted above the mounting seat, and a supporting mechanism is mounted at the lower end of the metal detector. The supporting mechanism comprises a supporting rod, a positioning hole and a positioning pin, the supporting rod is mounted on the lower wall of the metal detector, a receding hole is formed in the upper wall of the mounting base, the supporting rod can be inserted and mounted in the receding hole, the positioning hole is formed in the side wall of the supporting rod, and the positioning pin is inserted and mounted on the side wall of the mounting base; according to the device, the metal detector is mounted on the mounting seat through the supporting mechanism, so that the mounting height of the metal detector can be adjusted through the supporting mechanism, and therefore, after a detection piece is replaced, the situation that the detection piece cannot pass through the lower part of the metal detector, and the detection of the device on the detection piece is influenced is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of metal detection, in particular to a metal detector which is convenient for replacing detection parts. Background Art

[0002] A metal detector is an instrument that uses the principle of electromagnetic induction to detect metal. In practical applications, in order to improve detection efficiency, the metal detector is generally placed above the conveyor belt. When an object passes through the conveyor belt and passes through the metal detector, the metal detector can detect whether the object below contains metal.

[0003] In the installation structure of a metal detector proposed in application number CN202322993792.4, the metal detector is fixedly installed above the conveyor belt, and its position cannot be adjusted. As a result, when replacing a larger detection part, it is easy for the detection part to be unable to pass under the metal detector, affecting the detection of the detection part. Utility Model Content

[0004] The purpose of the present utility model is to provide a metal detector that is easy to replace detection parts, so as to solve the problem proposed in the above background technology that the existing metal detectors are all fixedly installed above the conveyor belt and their positions cannot be adjusted, resulting in the detection parts being unable to pass under the metal detector when replacing larger detection parts, thereby affecting the detection of the detection parts.

[0005] To achieve the above object, the present invention provides the following technical solution: a metal detector that is convenient for replacing detection parts, comprising a conveyor belt, a mounting base, and a metal detector, wherein the conveyor belt is mounted on the inner side of the mounting base, the metal detector is mounted above the mounting base, and the conveyor belt and the metal detector are both electrically connected to an external power supply;

[0006] A support mechanism is installed at the lower end of the metal detector, and the support mechanism includes a support rod, a positioning hole and a positioning pin. The support rod is installed on the lower wall of the metal detector, and a clearance hole is opened on the upper wall of the mounting seat. The support rod can be inserted and installed in the clearance hole. The side wall of the support rod is opened with a positioning hole, and a positioning pin is inserted and installed on the side wall of the mounting seat. The positioning pin can pass through the side wall of the mounting seat and be inserted and connected with the positioning hole;

[0007] A card slot is provided on the upper wall of the conveyor belt, and a rubber convex strip is inserted into the card slot.

[0008] As a preferred embodiment of the present invention, a mounting groove is provided on the upper wall of the mounting seat, an electric control push rod is inserted into the mounting groove, the electric control push rod is electrically connected to an external power supply, a protective pad is installed on the output end of the electric control push rod, and the protective pad can be fitted with the lower wall of the metal detector.

[0009] As a preferred embodiment of the present invention, a cleaning mechanism is installed on the side wall of the conveyor belt, and the cleaning mechanism includes a support rod, a groove, a slide and bristles. The support rod is installed on the side wall of the conveyor belt, and the cross-section of the support rod is L-shaped. A groove is provided on the lower wall of the support rod, and a slide is slidably installed in the groove. The lower wall of the slide is installed with bristles, and the bristles can fit into the upper wall of the conveyor belt.

[0010] As a preferred embodiment of the present invention, supporting feet are installed at the four corners of the lower wall of the mounting base.

[0011] As a preferred embodiment of the present invention, the support leg includes a rod body, a suction cup, a nut and a pressure ring. The rod body is installed on the lower wall of the mounting seat. A suction cup is installed at the end of the rod body, and the suction cup can be adsorbed on an external plane. The outer side of the rod body is provided with an external thread, and the nut is installed on the outer side of the rod body by screwing the thread. A pressure ring is installed on the lower wall of the nut, and the pressure ring can be pressed on the suction cup.

[0012] As a preferred embodiment of the present invention, one end of a spring is installed on the inner side wall of the groove, and the other end of the spring is in close contact with the upper wall of the slide plate.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] The metal detector in this device is mounted on the mounting base through a support mechanism, so that the installation height of the metal detector can be adjusted by the support mechanism, so that after the detection part is replaced, the detection part can be prevented from passing under the metal detector, which would affect the detection of the detection part by this device;

[0015] In addition, the device is also equipped with an electric push rod on the mounting base, which can more conveniently lift the metal detector, so that the staff does not need to manually lift the metal detector when adjusting the support mechanism, which is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of this patent;

[0017] Figure 2 This is a schematic diagram of the cleaning mechanism structure of this patent;

[0018] Figure 3 This is a schematic diagram of the support leg structure of this patent.

[0019] Figure 4 for Figure 1 Schematic diagram of the structure at point A in the middle.

[0020] In the figure: 1 conveyor belt, 2 mounting base, 3 metal detector, 4 support mechanism, 41 support rod, 42 positioning hole, 43 positioning pin, 5 clearance hole, 6 slot, 7 rubber ridge, 8 mounting slot, 9 electric push rod, 10 protection pad, 11 cleaning mechanism, 111 support rod, 112 groove, 113 slide plate, 114 brush, 12 support foot, 121 rod body, 122 suction cup, 123 nut, 124 pressure ring, 13 spring. 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0022] See also Figure 1-4 , the utility model provides a technical solution:

[0023] In this technical solution, a metal detector that is easy to replace detection parts includes a conveyor belt 1, a mounting base 2 and a metal detector 3. The conveyor belt 1 is installed inside the mounting base 2, and the metal detector 3 is installed above the mounting base 2. The conveyor belt 1 and the metal detector 3 are both electrically connected to an external power supply.

[0024] A support mechanism 4 is installed at the lower end of the metal detector 3. The support mechanism 4 includes a support rod 41, a positioning hole 42 and a positioning pin 43. The support rod 41 is installed on the lower wall of the metal detector 3. A clearance hole 5 is opened on the upper wall of the mounting base 2. The support rod 41 can be inserted and installed in the clearance hole 5. The side wall of the support rod 41 is opened with a positioning hole 42. A positioning pin 43 is inserted and installed on the side wall of the mounting base 2. The positioning pin 43 can penetrate the side wall of the mounting base 2 and be inserted into the positioning hole 42 for connection;

[0025] A slot 6 is provided on the upper wall of the conveyor belt 1, into which a rubber convex strip 7 is inserted.

[0026] In this technical solution, the conveyor belt 1 and metal detector 3 proposed in this article are both prior art. The metal detector 3 has the same structure as the metal detector in the installation structure of a metal detector proposed in application number CN202322993792.4. The working principle of the metal detector 3 is as follows:

[0027] The metal detector 3 has three sets of coils distributed inside, namely a central transmitting coil and two equal receiving coils. The oscillator connected to the central transmitting coil generates a high-frequency variable magnetic field. In the idle state, the induced voltages of the two receiving coils cancel each other out before the magnetic field is disturbed, reaching a balanced state. Once metal impurities enter the magnetic field area, the magnetic field is disturbed, and this balance is broken. The induced voltages of the two receiving coils cannot be offset. The unoffset induced voltages are amplified and processed by the control system, and an alarm signal is generated.

[0028] When replacing the detection part, if the detection part is large and cannot pass smoothly under the metal detector 3, the staff can first pull out the positioning pin 43 from the positioning hole 42, and then lift the metal detector 3 upward to the appropriate position, and then insert the positioning pin 43 into the positioning hole 42 again, thereby completing the adjustment of the metal detector 3 to ensure that the replaced detection part can pass smoothly under the metal detector 3.

[0029] In some technical solutions, an installation groove 8 is opened on the upper wall of the mounting base 2, and an electric control push rod 9 is inserted and installed in the installation groove 8. The electric control push rod 9 is electrically connected to the external power supply. A protective pad 10 is installed at the output end of the electric control push rod 9, and the protective pad 10 can be fitted with the lower wall of the metal detector 3.

[0030] In this technical solution, through the setting of the electric push rod 9, when the detection part is replaced and the height of the metal detector 3 needs to be adjusted, the metal detector 3 can be directly pushed upward by the electric push rod 9, making the adjustment of the metal detector 3 more labor-saving and quick.

[0031] In some technical solutions, a cleaning mechanism 11 is installed on the side wall of the conveyor belt 1. The cleaning mechanism 11 includes a support rod 111, a groove 112, a slide 113 and bristles 114. The support rod 111 is installed on the side wall of the conveyor belt 1. The cross-section of the support rod 111 is L-shaped. A groove 112 is provided on the lower wall of the support rod 111. A slide 113 is slidably installed in the groove 112. The lower wall of the slide 113 is installed with bristles 114, and the bristles 114 can fit into the upper wall of the conveyor belt 1.

[0032] In this technical solution, in order to prevent metal impurities from adhering to the conveyor belt 1 and causing false detection by the metal detector 3, a cleaning mechanism 11 is provided on the conveyor belt 1 to clean the surface of the conveyor belt 1 and remove impurities that have fallen from the conveyor belt 1.

[0033] During the operation of the conveyor belt 1 , the bristles 114 will always be in contact with the surface of the conveyor belt 1 , and the impurities spilled on the conveyor belt 1 can be cleaned by the bristles 114 , thereby ensuring the accuracy of the detection results of the metal detector 3 .

[0034] In some technical solutions, support legs 12 are installed at the four corners of the lower wall of the mounting base 2.

[0035] In some technical solutions, the support leg 12 includes a rod body 121, a suction cup 122, a nut 123 and a pressure ring 124. The rod body 121 is installed on the lower wall of the mounting base 2. A suction cup 122 is installed at the end of the rod body 121. The suction cup 122 can be adsorbed on an external plane. The outer side of the rod body 121 is provided with an external thread. The nut 123 is installed on the outer side of the rod body 121 by screwing the thread. A pressure ring 124 is installed on the lower wall of the nut 123, and the pressure ring 124 can be pressed on the suction cup 122.

[0036] In this technical solution, the suction cup 122 in the support leg 12 of the device can be adsorbed on an external plane to fix the position of the device. Then, the nut 123 can be rotated to press the pressure ring 124 on the suction cup 122 to ensure that the suction cup 122 is adsorbed stably and to prevent the suction cup 122 from being released from the adsorption state due to its own elastic force.

[0037] In some technical solutions, one end of a spring 13 is installed on the inner wall of the groove 112 , and the other end of the spring 13 is in close contact with the upper wall of the slide plate 113 .

[0038] In this technical solution, since the bristles 114 will be worn when in contact with the conveyor belt 1, in order to avoid affecting the cleaning effect of the conveyor belt 1, a spring 13 is provided to apply a downward thrust to the slide plate 113 so that the bristles 114 can always be in contact with the upper wall of the conveyor belt 1.

[0039] Working principle: The test piece is placed on the conveyor belt 1, which drives the test piece to move. When the test piece moves under the metal detector 3, the metal detector 3 detects whether there are metal impurities in the test piece based on the change of the magnetic field;

[0040] When replacing a detection part, if the detection part is large and cannot pass smoothly from under the metal detector 3, the staff can first pull out the positioning pin 43 from the positioning hole 42, and then use the electric push rod 9 to push the metal detector 3 upward to the appropriate position, and then insert the positioning pin 43 into the positioning hole 42 again, thereby completing the adjustment of the metal detector 3 and ensuring that the replaced detection part can pass smoothly from under the metal detector 3.

[0041] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0042] While the present invention has been described above with reference to exemplary embodiments, various modifications may be made and equivalent components may be substituted without departing from the scope of the present invention. In particular, as long as no structural conflicts exist, the various features of the disclosed embodiments may be combined with one another in any manner. The omission of an exhaustive description of these combinations in this specification is solely for the sake of space and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions within the scope of the claims.

Claims

1. A metal detector that is easy to replace detection parts, comprising a conveyor belt (1), a mounting base (2) and a metal detector (3), characterized in that: A conveyor belt (1) is installed on the inner side of the mounting seat (2), and the metal detector (3) is installed above the mounting seat (2). Both the conveyor belt (1) and the metal detector (3) are electrically connected to an external power supply. A support mechanism (4) is installed at the lower end of the metal detector (3), and the support mechanism (4) includes a support rod (41), a positioning hole (42) and a positioning pin (43). The support rod (41) is installed on the lower wall of the metal detector (3), and a clearance hole (5) is provided on the upper wall of the mounting seat (2). The support rod (41) can be inserted and installed in the clearance hole (5). The side wall of the support rod (41) is provided with a positioning hole (42). The side wall of the mounting seat (2) is inserted and installed with a positioning pin (43). The positioning pin (43) can pass through the side wall of the mounting seat (2) and be inserted and connected with the positioning hole (42). A card slot (6) is provided on the upper wall of the conveyor belt (1), and a rubber convex strip (7) is inserted and installed in the card slot (6).

2. A metal detector that facilitates replacement of detection parts according to claim 1, characterized in that: The upper wall of the mounting seat (2) is provided with a mounting groove (8), an electric control push rod (9) is inserted and installed in the mounting groove (8), the electric control push rod (9) is electrically connected to an external power supply, and a protective pad (10) is installed at the output end of the electric control push rod (9), and the protective pad (10) can be fitted with the lower wall of the metal detector (3).

3. The metal detector with easy replacement of detection parts according to claim 1, characterized in that: The side wall of the conveyor belt (1) is provided with a cleaning mechanism (11), the cleaning mechanism (11) comprising a support rod (111), a groove (112), a slide plate (113) and bristles (114), the support rod (111) being provided on the side wall of the conveyor belt (1), the cross section of the support rod (111) being L-shaped, the lower wall of the support rod (111) being provided with a groove (112), the slide plate (113) being slidably installed in the groove (112), the lower wall of the slide plate (113) being provided with bristles (114), and the bristles (114) being adapted to fit the upper wall of the conveyor belt (1).

4. The metal detector with easy replacement of detection parts according to claim 1, characterized in that: Support legs (12) are installed at the four corners of the lower wall of the mounting seat (2).

5. The metal detector with easy replacement of detection parts according to claim 4, characterized in that: The support leg (12) comprises a rod body (121), a suction cup (122), a nut (123) and a pressure ring (124); the rod body (121) is mounted on the lower wall of the mounting seat (2); a suction cup (122) is mounted at the end of the rod body (121); the suction cup (122) can be adsorbed on an external plane; an external thread is provided on the outer side of the rod body (121); the nut (123) is mounted on the outer side of the rod body (121) by screwing the thread; a pressure ring (124) is mounted on the lower wall of the nut (123); the pressure ring (124) can be pressed on the suction cup (122).

6. The metal detector with easy replacement of detection parts according to claim 3, characterized in that: One end of a spring (13) is installed on the inner side wall of the groove (112), and the other end of the spring (13) is in close contact with the upper wall of the slide plate (113).

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