CN114235559A

CN114235559A - Detection equipment for hardness of precious metal ornaments

Info

Publication number: CN114235559A
Application number: CN202111592389.XA
Authority: CN
Inventors: 张璐; 王伟; 张少强
Original assignee: Huajin Guojian Shenzhen Gold Silver Jewelry Inspection Center Co ltd
Current assignee: Huajin Guojian Shenzhen Gold Silver Jewelry Inspection Center Co ltd
Priority date: 2021-12-23
Filing date: 2021-12-23
Publication date: 2022-03-25

Abstract

The invention relates to detection equipment, in particular to detection equipment for the hardness of a noble metal ornament. The invention aims to provide a detection device for the hardness of a noble metal ornament, which can adjust the detection strength. The invention provides a device for detecting the hardness of a noble metal ornament, which comprises a shell, a protection plate, a support rod, a pressing block, a first support block and the like, wherein the protection plate for preventing dust is rotatably arranged at the lower part of the front side of the shell, the support rod is arranged in the middle of the inner bottom of the shell, the pressing block for knocking the noble metal ornament is arranged in the middle of the upper part of the support rod in a sliding manner, and the first support block is arranged at the top of the pressing block. According to the metal ornament hardness detection device, the pressing block and the first supporting block can be driven to move upwards through the clamping block, when the clamping block is in contact with the contact block, the clamping block can loosen the first supporting block, so that the pressing block can move downwards to knock the metal ornament to complete hardness detection work, and then the purpose of adjusting the detection strength can be achieved by adjusting the height of the contact block.

Description

Detection equipment for hardness of precious metal ornaments

Technical Field

The invention relates to detection equipment, in particular to detection equipment for the hardness of a noble metal ornament.

Background

The noble metal ornaments mainly comprise four noble metal elements of gold, silver, platinum and palladium and some base metal elements, when people manufacture the gold ornaments, some other metal elements are usually required to be added into pure gold to increase the hardness of the ornaments, and after the gold ornaments are manufactured, the hardness of the ornaments needs to be detected.

Patent application CN211697329U, the publication date is 20201016, discloses a detection device that metal material goods were used, including the operation panel, the top fixed mounting of operation panel has the mount, the interior roof fixed mounting of mount has hydraulic pressure push rod, hydraulic pressure push rod's bottom fixedly connected with pressure head, the top fixed mounting of operation panel has the fixed block, the top swing joint of fixed block has metal mold, the equal fixed mounting of the inner chamber left and right sides wall of mount has the mounting bracket. This detection device that metal material goods were used, when the metal sheet reverse rotation, and then drive the movable rod and move to one side of carrying on the back mutually for connecting rod moves to one side of carrying on the back mutually, thereby has driven the slider and moved to one side of carrying on the back mutually on the slide rail, finally makes the holding head move to one side of carrying on the back mutually, has reached the purpose of unclamping metal mold, makes the metal mold after the measurement conveniently take out. Although the metal mold after the patent above-mentioned makes things convenient for people to take out, can not adjust detection intensity according to people's demand.

In view of the above, there is a need for a device for detecting the hardness of a noble metal ornament, which can adjust the detection strength, to solve the above problems.

Disclosure of Invention

In order to overcome the defect that the conventional detection device generally cannot adjust the detection strength according to the requirements of people, the invention aims to provide the detection equipment for the hardness of the precious metal ornaments, which can adjust the detection strength.

The invention is realized by the following technical approaches:

a detection device for the hardness of a noble metal ornament comprises a shell, a protection plate, a support rod, a pressing block, a first support block, a first spring, a first baffle, a clockwork spring, a clamping component, an adjusting component, a driving component and a lifting component, wherein the front lower part of the shell is rotatably provided with the protection plate for preventing dust, the middle of the inner bottom of the shell is provided with the support rod, the middle of the upper part of the support rod is slidably provided with the pressing block for knocking the metal ornament, the top of the pressing block is provided with the first support block, the first spring is arranged between the lower part of the pressing block and the upper part of the support rod, the inner lower part of the shell is rotatably provided with the first baffle for placing the metal ornament, the clockwork spring is arranged between the rear side of the first baffle and the shell, the inner lower part of the shell is provided with the clamping component for limiting the first baffle, and the inner upper part of the shell is provided with the adjusting component for adjusting the detection strength, the supporting rod is provided with a driving component for driving the pressing block to knock the metal ornament, and the upper part of the supporting rod is provided with a lifting component for lifting the pressing block.

Further, block the subassembly including first guide arm, first kelly and second spring, the inboard lower part front side bilateral symmetry of shell is equipped with first guide arm, all is equipped with first kelly in the slidingtype on the first guide arm, first kelly all contacts with the guard plate, and adjacent first baffle is all blocked to first kelly, and first guide arm rear portion all around having the second spring, and the both ends of second spring are connected with first kelly and shell respectively.

Further, the adjusting part is including contacting the piece, the third spring, the second supporting shoe, second kelly and fourth spring, the inboard upper portion front side sliding type of shell is equipped with contacts the piece, the inboard upper portion front side sliding type of shell is equipped with the second supporting shoe, the second supporting shoe is located contacts the piece below, bilateral symmetry is equipped with the third spring between contact piece and the second supporting shoe, the middle part sliding type of second supporting shoe is equipped with the second kelly, the shell is blocked to the second kelly, be equipped with the fourth spring between the rear side of second kelly and the second supporting shoe.

Further, drive the subassembly including cylinder, backup pad, fixture block and fifth spring, the left and right sides of bracing piece all is equipped with the cylinder, is equipped with the backup pad between the telescopic link top of cylinder, and both sides middle part all slidingtype is equipped with the fixture block around the backup pad, and the fixture block down moves can contact with first supporting block, and the fixture block all contacts with the contact patch, all is equipped with the fifth spring between the fixture block outside and the backup pad.

Further, it includes the second guide arm to lift up the subassembly, first connecting rod, the sixth spring, the second connecting rod, gyro wheel and stay cord, the left and right sides on bracing piece upper portion all is equipped with the second guide arm, the equal slidingtype in second guide arm rear side is equipped with first connecting rod, first connecting rod all with bracing piece sliding type connection, second guide arm rear portion all has been around there being the sixth spring, the both ends of sixth spring are connected with bracing piece and first connecting rod respectively, the left and right sides middle part of first supporting block all is equipped with the second connecting rod, the second connecting rod all contacts with adjacent first connecting rod, the equal bilateral symmetry rotary type in upper and lower both sides of shell inner wall front side is equipped with the gyro wheel, all be equipped with the stay cord between the front side lower part of first connecting rod and the rear side lower part of guard plate, two gyro wheels of homonymy are all walked around to the stay cord.

Further, still including the restriction subassembly that is used for preventing the metal ornaments departure, the restriction subassembly is including the third guide arm, the second baffle, the seventh spring, contact bar and third connecting rod, the equal slidingtype third guide arm that is equipped with in the left and right sides of bracing piece lower part, third guide arm inboard all is equipped with the second baffle, the third guide arm outside all is around having the seventh spring, the both ends of seventh spring are connected with bracing piece and third guide arm respectively, the rear side upper portion of second baffle all is equipped with the contact bar, the rear side bilateral symmetry of first supporting block is equipped with the third connecting rod, the third connecting rod all contacts with adjacent contact bar.

Further, still including the rotating assembly who is used for metal ornaments automatic discharge, rotating assembly is including the fourth guide arm, the fourth connecting rod, the eighth spring, the ratchet, ninth spring and ratchet wheel, the rear side lower part bilateral symmetry of shell inner wall is equipped with the fourth guide arm, all slidingtype is equipped with the fourth connecting rod on the fourth guide arm, the fourth connecting rod all contacts with first connecting rod, all be equipped with the eighth spring between fourth connecting rod and the adjacent fourth guide arm, the inboard lower part of fourth connecting rod all slidingtype is equipped with the ratchet, all be equipped with the ninth spring between ratchet and the adjacent fourth connecting rod, first baffle rear side all is equipped with the ratchet wheel, the ratchet can down transport ability and ratchet wheel mesh.

Furthermore, square holes are formed in the middle parts of the front side and the rear side of the first supporting block.

Compared with the prior art, the invention has the following advantages:

1. the clamping block can clamp the first supporting block, so that the pressing block and the first supporting block can be driven to move upwards, when the clamping block is in contact with the contact block, the clamping block can loosen the first supporting block, the pressing block can move downwards to knock the metal ornament, hardness detection work is completed, and then the purpose of adjusting detection strength can be achieved by adjusting the height of the contact block.

2. When the second baffle moves towards the inner side, the second baffle can surround the metal ornament, so that the metal ornament can be prevented from flying out.

3. When the first supporting block moves upwards, the first baffle can be driven to rotate downwards to be opened through the matching of the ratchet bar and the ratchet gear, so that the discharging work of the metal ornaments is automatically completed.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a first partial sectional structural schematic diagram of the present invention.

Fig. 3 is a second partial sectional structural view of the present invention.

Fig. 4 is an enlarged schematic view of the structure at a of the present invention.

Figure 5 is a schematic view of the installation of the seizure assembly of the present invention.

Fig. 6 is an enlarged schematic view of the present invention at B.

FIG. 7 is a partial cross-sectional structural schematic view of an adjustment assembly of the present invention.

Fig. 8 is an enlarged schematic view of the present invention at C.

Fig. 9 is a schematic view of the installation of the driving assembly of the present invention.

Fig. 10 is an enlarged schematic view of the present invention at D.

FIG. 11 is a schematic perspective view of a first embodiment of a lift assembly according to the present invention.

Fig. 12 is an enlarged schematic view of the present invention at E.

Fig. 13 is an enlarged schematic view of the structure at F of the present invention.

FIG. 14 is a schematic perspective view of a second embodiment of the lift assembly of the present invention.

Fig. 15 is an enlarged schematic view of the invention at G.

Fig. 16 is an enlarged schematic view of the present invention at H.

Fig. 17 is a schematic view of the installation of the restraining assembly of the present invention.

Fig. 18 is a schematic view of the installation of the rotating assembly of the present invention.

Fig. 19 is an enlarged schematic view of the structure at point I of the present invention.

Fig. 20 is an enlarged view of the structure at J of the present invention.

Part names and serial numbers in the figure: 1_ housing, 2_ guard plate, 3_ support bar, 4_ press block, 5_ first support block, 6_ first spring, 7_ first baffle, 8_ spring, 9_ seizing component, 91_ first guide bar, 92_ first seizing bar, 93_ second spring, 10_ adjustment component, 101_ contact block, 102_ third spring, 103_ second support block, 104_ second seizing bar, 105_ fourth spring, 11_ driving component, 111_ cylinder, 112_ support plate, 113_ seizing block, 114_ fifth spring, 12_ lifting component, 121_ second guide bar, 122_ first connection bar, 123_ sixth spring, 124_ second connection bar, 125_ roller, 126_ pull rope, 13_ restriction component, 131_ third guide bar, 132_ second baffle, 133_ seventh spring, 134_ contact bar, 135_ third connection bar, 14_ rotation component, 141_ fourth guide bar, 142_ fourth connection bar, 143_ eighth spring, 144_ ratchet bar, 145_ ninth spring, 146_ ratchet wheel.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

Example 1

A detection device for the hardness of a noble metal ornament is disclosed, and referring to FIGS. 1-16, the detection device comprises a shell 1, a protection plate 2, a support rod 3, a press block 4, a first support block 5, a first spring 6, a first baffle 7, a clockwork spring 8, a clamping component 9, an adjusting component 10, a driving component 11 and a lifting component 12, wherein the protection plate 2 is rotatably arranged at the lower part of the front side of the shell 1, the support rod 3 is welded at the middle of the inner bottom of the shell 1, the press block 4 is slidably arranged at the middle of the upper part of the support rod 3, the press block 4 can move downwards to knock the noble metal ornament to complete the hardness detection work, the first support block 5 is arranged at the top of the press block 4, square holes are respectively formed at the middle parts of the front side and the back side of the first support block 5, the first spring 6 is arranged between the lower part of the press block 4 and the upper part of the support rod 3, the first baffle 7 is rotatably arranged at the left and right symmetry lower part at the lower part of the inner side of the shell 1, people can place the noble metal ornament between the tops of the first baffle 7, all be equipped with clockwork spring 8 between first baffle 7 rear side and the shell 1, the inboard lower part of shell 1 is equipped with blocks subassembly 9, and the inboard upper portion of shell 1 is equipped with adjusting part 10, is equipped with on the bracing piece 3 and drives subassembly 11, and bracing piece 3 upper portion is equipped with lifts up subassembly 12.

Referring to fig. 2, 5 and 6, block subassembly 9 including first guide arm 91, first kelly 92 and second spring 93, the inboard lower part front side bilateral symmetry welding of shell 1 has first guide arm 91, all slidingtype be equipped with first kelly 92 on the first guide arm 91, first kelly 92 all contacts with guard plate 2, adjacent first baffle 7 is all blocked to first kelly 92, thereby can carry out spacingly to first baffle 7, first guide arm 91 rear portion all around there being second spring 93, the both ends of second spring 93 are connected with first kelly 92 and shell 1 respectively.

Referring to fig. 1, 2, 7 and 8, the adjusting assembly 10 includes a contact block 101, a third spring 102, a second support block 103, a second rod 104 and a fourth spring 105, the contact block 101 is slidably disposed at the upper front side of the inner side of the housing 1, the second support block 103 is located below the contact block 101, the third spring 102 is symmetrically disposed between the contact block 101 and the second support block 103, the second rod 104 is slidably disposed at the middle of the second support block 103, the housing 1 is clamped by the second rod 104, when a person pushes the second rod 104 backwards, the second rod 104 can loosen the housing 1, and then the second rod 104 moves upwards and downwards to drive the second support block 103 to move upwards and downwards, so as to adjust the detected strength, and the fourth spring 105 is disposed between the rear side of the second rod 104 and the second support block 103.

Referring to fig. 2, fig. 9 and fig. 10, drive subassembly 11 including cylinder 111, supporting plate 112, fixture block 113 and fifth spring 114, the left and right sides of bracing piece 3 has all bolted connection cylinder 111, be equipped with supporting plate 112 between the telescopic link top of cylinder 111, the equal slidingtype fixture block 113 that is equipped with in front and back both sides middle part of supporting plate 112, fixture block 113 down moves can contact with first supporting block 5, thereby can block first supporting block 5, fixture block 113 all contacts with contact block 101, all be equipped with fifth spring 114 between the fixture block 113 outside and supporting plate 112.

Referring to fig. 2, 11, 12, 13, 14, 15 and 16, the lifting assembly 12 includes a second guide rod 121, a first connecting rod 122, a sixth spring 123, a second connecting rod 124, a roller 125 and a pull rope 126, the second guide rod 121 is welded on the left and right sides of the upper portion of the support rod 3, the first connecting rod 122 is slidably disposed on the rear side of the second guide rod 121, the first connecting rod 122 is slidably connected with the support rod 3, the sixth spring 123 is wound around the rear portion of the second guide rod 121, two ends of the sixth spring 123 are respectively connected with the support rod 3 and the first connecting rod 122, the second connecting rod 124 is disposed on the middle portion of the left and right sides of the first support block 5, the second connecting rod 124 is in contact with the adjacent first connecting rod 122, when the first connecting rod 122 moves forward, the second connecting rod 124 can be pressed to move upward, so as to lift the first support block 5 and the pressing block 4, which is convenient for people to place metal ornaments, the rotary ornaments 125 are symmetrically disposed on the left and right sides of the front side of the inner wall of the housing 1, pull ropes 126 are arranged between the lower part of the front side of the first connecting rod 122 and the lower part of the rear side of the protection plate 2, and the pull ropes 126 pass around the two rollers 125 on the same side.

Initially, the second spring 93 and the fifth spring 114 are in a compressed state, when people need to use the device, firstly, the protection plate 2 is rotated upwards to be opened, so that the protection plate 2 is separated from the first clamping rod 92, the second spring 93 is restored to the original state to drive the first clamping rod 92 to move forwards, so that the first clamping rod 92 loosens the first baffle 7, meanwhile, the protection plate 2 can drive the first connecting rod 122 to move forwards through the pull rope 126, the sixth spring 123 is stretched, the roller 125 plays a guiding role, the first connecting rod 122 drives the second connecting rod 124 to move upwards to drive the pressing block 4 and the first supporting block 5 to move upwards, the first spring 6 is compressed, then the metal ornament is manually placed between the tops of the first baffle 7, then the protection plate 2 is rotated downwards to be closed, so that the pull rope 126 is loosened, the original state of the sixth spring 123 is restored, the first connecting rod 122 is driven to move backwards to be restored, and then the pull rope 126 is driven to be restored, at this time, the first connecting rod 122 is separated from the second connecting rod 124, the first spring 6 is restored to the original state to drive the pressing block 4, the first supporting block 5 and the second connecting rod 124 to move downwards to be restored, so that the pressing block 4 is contacted with the top of the metal ornament, at this time, the first spring 6 is not completely restored to the original state, when the protection plate 2 is contacted with the first clamping rod 92, the first clamping rod 92 is extruded to move backwards to be restored to clamp the first baffle 7, the second spring 93 is compressed to prevent the first baffle 7 from rotating downwards to be opened, then people push the second clamping rod 104 backwards, the fourth spring 105 is compressed to enable the second clamping rod 104 to loosen the shell 1, then the second clamping rod 104 is pulled downwards to drive the second supporting block 103 to move downwards, the third spring 102 is stretched to adjust the detection strength, the lower the position of the second supporting block 103 indicates that the detection strength is smaller, when the second clamping rod 104 moves to a proper position, the second clamping rod 104 is loosened, the fourth spring 105 restores to the original state, drives the second clamping rod 104 to move forward and restore, so that the second clamping rod 104 clamps the shell 1 again, thereby fixing the position of the second supporting block 103, then the cylinder 111 is started, the telescopic rod of the cylinder 111 is controlled to shorten, thereby driving the supporting plate 112 to move downward, the supporting plate 112 drives the clamping block 113 to move downward, at this time, the third spring 102 restores to the original state, thereby driving the contact block 101 to move downward, after the third spring 102 completely restores to the original state, the contact block 101 stops moving, at this time, the supporting plate 112 and the clamping block 113 continue to move downward, thereby separating the clamping block 113 from the contact block 101, the fifth spring 114 restores to the original state, thereby driving the clamping block 113 to move inward, when the clamping block 113 contacts with the first supporting block 5, the first supporting block 5 can press the clamping block 113 to move outward, the fifth spring 114 compresses, and when the clamping block 113 is aligned with the square hole, the fifth spring 114 restores to the original state, the clamping block 113 is driven to move inwards to enable the clamping block 113 to extend into the square hole, so that the first supporting block 5 can be clamped, then the telescopic rod of the cylinder 111 is controlled to extend, so that the supporting plate 112 is driven to move upwards to reset, the supporting plate 112 drives the clamping block 113 to move upwards to reset, the clamping block 113 drives the first supporting block 5 to move upwards, so that the pressing block 4 is driven to move upwards, the first spring 6 is compressed again, so that the pressing block 4 is separated from the metal ornament, when the clamping block 113 is contacted with the contact block 101 again, the contact block 101 can extrude the clamping block 113 to move outwards, the fifth spring 114 is compressed, so that the clamping block 113 loosens the first supporting block 5, at the moment, the first spring 6 is restored to the original state, the pressing block 4 and the first supporting block 5 are driven to move downwards to reset, so that the pressing block 4 strikes the metal ornament, the hardness detection work is completed, at the moment, the first spring 6 is not completely restored to the original state, and the first clamping rod 92 clamps the first baffle 7, the first baffle 7 can not rotate downwards due to impact force, then the cylinder 111 is closed, the protection plate 2 rotates upwards to be opened, then the first baffle 7 is pushed downwards to enable the first baffle 7 to rotate downwards to be opened, the clockwork spring 8 deforms, at the moment, the tested metal ornament can fall downwards under the action of gravity, then the first baffle 7 is loosened, the clockwork spring 8 restores to the original state to drive the first baffle 7 to rotate upwards to be reset to be closed, then the next metal ornament is manually placed between the tops of the first baffles 7, then the protection plate 2 rotates downwards to be closed, the operations are repeated, the hardness test can be carried out on the metal ornament again, the operation is repeated, in such a reciprocating manner, when all the metal ornaments are tested, no metal ornament exists between the tops of the first baffles 7, the first spring 6 can be completely reset, and the press block 4 and the first supporting block 5 are driven to move downwards to be completely reset, finally, the tested metal ornaments are taken away manually.

Example 2

On the basis of embodiment 1, referring to fig. 2 and 17, the metal ornament fixing device further includes a limiting assembly 13, the limiting assembly 13 includes a third guide rod 131, a second baffle 132, a seventh spring 133, a contact rod 134 and a third connecting rod 135, the third guide rod 131 is slidably disposed on both left and right sides of the lower portion of the support rod 3, the second baffle 132 is welded on the inner side of the third guide rod 131, the second baffle 132 can block the outer side of the metal ornament to prevent the metal ornament from flying out, the seventh spring 133 is wound on the outer side of the third guide rod 131, both ends of the seventh spring 133 are respectively connected with the support rod 3 and the third guide rod 131, the contact rod 134 is welded on the upper portion of the rear side of the second baffle 132, the third connecting rods 135 are symmetrically disposed on the left and right of the rear side of the first support block 5, and the third connecting rods 135 are all in contact with the adjacent contact rods 134.

Initially, the seventh spring 133 is in a compressed state, when the first supporting block 5 moves upward, the third connecting rod 135 is driven to move upward, so that the third connecting rod 135 is separated from the contact rod 134, at this time, the seventh spring 133 recovers to its original state, the third guide rod 131 and the second baffle 132 are driven to move outward, the second baffle 132 drives the contact rod 134 to move outward, then, people can place the metal ornament between the tops of the first baffles 7, at this time, the metal ornament is located between the inner sides of the second baffles 132, when the first supporting block 5 moves downward, the third connecting rod 135 can be driven to move downward, the third connecting rod 135 can extrude the contact rod 134 to move inward, so that the third guide rod 131 and the second baffle 132 are driven to move inward, the seventh spring 133 is compressed, so that the second baffle 132 can surround the metal ornament, and thus, the metal ornament is prevented from flying out when being knocked.

Referring to fig. 18, 19 and 20, the metal ornament discharging device further includes a rotating assembly 14, the rotating assembly 14 includes a fourth guide rod 141, a fourth connecting rod 142, an eighth spring 143, a ratchet bar 144, a ninth spring 145 and a ratchet gear 146, the fourth guide rod 141 is welded on the lower portion of the rear side of the inner wall of the housing 1 in a bilateral symmetry manner, the fourth connecting rod 142 is slidably disposed on the fourth guide rod 141, the fourth connecting rod 142 is in contact with the first connecting rod 122, the eighth spring 143 is disposed between the fourth connecting rod 142 and the adjacent fourth guide rod 141, the ratchet bar 144 is slidably disposed on the lower portion of the inner side of the fourth connecting rod 142, the ninth spring 145 is disposed between the ratchet bar 144 and the adjacent fourth connecting rod 142, the ratchet gear 146 is disposed on the rear side of the first baffle 7, and the ratchet bar 144 can be engaged with the ratchet gear 146 when moving downward, so as to drive the ratchet gear 146 and the first baffle 7 to rotate, thereby completing the metal ornament discharging function.

Initially, the eighth spring 143 is in a compressed state, when the protective plate 2 is rotated upward and opened, the first connecting rod 122 is driven to move forward, so that the first connecting rod 122 is separated from the fourth connecting rod 142, the eighth spring 143 returns to its original state, the fourth connecting rod 142 is driven to move downward, the fourth connecting rod 142 drives the ratchet bar 144 to move downward, when the ratchet bar 144 is meshed with the ratchet wheel 146, the ratchet wheel 146 is driven to rotate, so as to drive the first baffle 7 to rotate downward and open, the clockwork spring 8 deforms, so that the tested metal accessories fall downward, when the ratchet bar 144 is separated from the ratchet wheel 146, the clockwork spring 8 returns to its original state, the first baffle 7 is driven to rotate upward and return to close, so as to drive the ratchet wheel 146 to rotate reversely, then the next metal accessory is manually placed between the tops of the first baffle 7, the protective plate 2 is rotated downward and closed, so as to drive the first connecting rod 122 to move backward, the first link 122 presses the fourth link 142 to move upward, the eighth spring 143 compresses, the fourth link 142 drives the ratchet bar 144 to move upward, when the ratchet bar 144 is engaged with the ratchet wheel 146, the ratchet wheel 146 presses the ratchet bar 144 to move inward, the ninth spring 145 compresses, and when the ratchet bar 144 is separated from the ratchet wheel 146, the ninth spring 145 restores its original state to drive the ratchet bar 144 to move outward and return.

The present application is described in detail above, and the principles and embodiments of the present application are described herein by using specific examples, which are only used to help understand the method and the core idea of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. A detection device for the hardness of precious metal ornaments comprises a shell (1), a protection plate (2), a support rod (3), a pressing block (4), a first support block (5), a first spring (6), a first baffle (7) and a clockwork spring (8), wherein the protection plate (2) for dust prevention is rotatably arranged at the lower part of the front side of the shell (1), the support rod (3) is arranged in the middle of the inner bottom of the shell (1), the pressing block (4) for knocking the metal ornaments is slidably arranged in the middle of the upper part of the support rod (3), the first support block (5) is arranged at the top of the pressing block (4), the first spring (6) is arranged between the lower part of the pressing block (4) and the upper part of the support rod (3), the first baffle (7) for placing the metal ornaments is symmetrically and rotatably arranged at the left and right lower part of the inner side of the shell (1), the clockwork spring (8) is arranged between the rear side of the first baffle (7) and the shell (1), its characterized in that still including blocking subassembly (9), adjusting part (10), drive subassembly (11) and lift up subassembly (12), the inboard lower part of shell (1) is equipped with and is used for carrying on spacing subassembly (9) that block to first baffle (7), the inboard upper portion of shell (1) is equipped with adjusting part (10) that are used for adjusting detection intensity, be equipped with on bracing piece (3) and be used for driving drive subassembly (11) that briquetting (4) knocked the metal ornaments, bracing piece (3) upper portion is equipped with and is used for lifting up subassembly (12) that lift up of briquetting (4).

2. The precious metal ornament hardness detection device according to claim 1, wherein the clamping assembly (9) comprises a first guide rod (91), a first clamping rod (92) and a second spring (93), the first guide rod (91) is symmetrically arranged on the left and right sides of the lower portion of the inner side of the shell (1), the first clamping rod (92) is arranged on the first guide rod (91) in a sliding mode, the first clamping rod (92) is in contact with the protection plate (2), the first clamping rod (92) clamps the adjacent first baffle (7), the second spring (93) is wound around the rear portion of the first guide rod (91), and two ends of the second spring (93) are respectively connected with the first clamping rod (92) and the shell (1).

3. The precious metal jewelry hardness detection device according to claim 2, wherein the adjusting assembly (10) comprises a contact block (101), a third spring (102), a second support block (103), a second clamping bar (104) and a fourth spring (105), the contact block (101) is slidably arranged on the upper front side of the inner side of the housing (1), the second support block (103) is located below the contact block (101), the third spring (102) is symmetrically arranged between the contact block (101) and the second support block (103) in a left-right mode, the second clamping bar (104) is slidably arranged in the middle of the second support block (103), the housing (1) is clamped by the second clamping bar (104), and the fourth spring (105) is arranged between the rear side of the second clamping bar (104) and the second support block (103).

4. The precious metal ornament hardness detection device according to claim 3, wherein the driving assembly (11) comprises an air cylinder (111), a support plate (112), a clamping block (113) and a fifth spring (114), the air cylinder (111) is arranged on each of the left side and the right side of the support rod (3), the support plate (112) is arranged between the tops of telescopic rods of the air cylinders (111), the clamping blocks (113) are arranged in the middle portions of the front side and the rear side of the support plate (112) in a sliding mode, the clamping blocks (113) can move downwards to be in contact with the first support block (5), the clamping blocks (113) are in contact with the contact block (101), and the fifth spring (114) is arranged between the outer side of each clamping block (113) and the support plate (112).

5. The precious metal ornament hardness detection device according to claim 4, wherein the lifting assembly (12) comprises a second guide rod (121), a first connecting rod (122), a sixth spring (123), a second connecting rod (124), a roller (125) and a pull rope (126), the second guide rod (121) is arranged on each of the left and right sides of the upper portion of the support rod (3), the first connecting rod (122) is arranged on each of the rear sides of the second guide rod (121) in a sliding manner, the sixth spring (123) is wound around each of the rear portions of the second guide rods (121), both ends of the sixth spring (123) are respectively connected with the support rod (3) and the first connecting rod (122), the second connecting rod (124) is arranged in the middle of each of the left and right sides of the first support block (5), the second connecting rod (124) is in contact with the adjacent first connecting rod (122), the roller (125) is arranged on each of the left and right sides of the front side of the inner wall of the housing (1) in a rotating manner, a pull rope (126) is arranged between the lower part of the front side of the first connecting rod (122) and the lower part of the rear side of the protection plate (2), and the pull rope (126) bypasses the two rollers (125) on the same side.

6. The apparatus for detecting the hardness of a noble metal ornament according to claim 5, further comprising a limiting component (13) for preventing the metal ornament from flying out, wherein the limiting component (13) comprises a third guide rod (131) and a second baffle plate (132), seventh spring (133), contact bar (134) and third connecting rod (135), the left and right sides of bracing piece (3) lower part all slidingtype is equipped with third guide arm (131), third guide arm (131) inboard all is equipped with second baffle (132), third guide arm (131) outside all around has seventh spring (133), the both ends of seventh spring (133) are connected with bracing piece (3) and third guide arm (131) respectively, the rear side upper portion of second baffle (132) all is equipped with contact bar (134), the rear side bilateral symmetry of first supporting block (5) is equipped with third connecting rod (135), third connecting rod (135) all contact with adjacent contact bar (134).

7. The precious metal ornament hardness detection device according to claim 6, further comprising a rotation assembly (14) for automatically discharging the metal ornaments, wherein the rotation assembly (14) comprises a fourth guide rod (141), a fourth connecting rod (142), an eighth spring (143), a ratchet bar (144), a ninth spring (145) and a ratchet wheel (146), the fourth guide rod (141) is symmetrically arranged at the lower portion of the rear side of the inner wall of the housing (1), the fourth connecting rods (142) are slidably arranged on the fourth guide rod (141), the fourth connecting rods (142) are in contact with the first connecting rod (122), the eighth spring (143) is arranged between each fourth connecting rod (142) and the adjacent fourth guide rod (141), the ratchet bar (144) is slidably arranged at the lower portion of the inner side of each fourth connecting rod (142), the ninth spring (145) is arranged between each ratchet bar (144) and the adjacent fourth connecting rod (142), the rear sides of the first baffle plates (7) are respectively provided with a ratchet gear (146), and the ratchet bars (144) can move downwards to be meshed with the ratchet gears (146).

8. The apparatus for detecting the hardness of a noble metal ornamental article according to claim 1, wherein the middle parts of the front and rear sides of the first supporting block (5) are provided with square holes.