CN109035628B

CN109035628B - Financial tool

Info

Publication number: CN109035628B
Application number: CN201810735013.1A
Authority: CN
Inventors: 向伟; 杨春志
Original assignee: Huainan Normal University
Current assignee: Jinzhi Dongbo (Beijing) Education Technology Co.,Ltd.
Priority date: 2018-07-06
Filing date: 2018-07-06
Publication date: 2020-10-09
Anticipated expiration: 2038-07-06
Also published as: CN109035628A

Abstract

The invention belongs to the technical field of POS (point of sale), and particularly relates to a financial tool which comprises a POS machine body, a base and an adsorption unit, wherein the POS machine body is positioned in the base and is clamped by a clamping mechanism arranged on the base; the position where the POS machine body is clamped is positioned above the gravity center of the POS machine body so as to ensure that the operating surface of the POS machine body faces upwards. The invention can protect the POS machine and avoid the damage of the POS machine; meanwhile, the angle of the operation surface of the POS machine can be adjusted, and card swiping operation is convenient to carry out.

Description

Financial tool

Technical Field

The invention belongs to the technical field of POS (point of sale), and particularly relates to a financial tool.

Background

The POSPointofSales machine is a terminal reader equipped with bar codes or OCR code optical character codes. The working principle of the POS machine is as follows: the POS machine sends the information to the card bank system through the Unionpay center, completes the online transaction, gives the information of success or failure, and prints the corresponding bill. The application of the POS machine realizes the online consumption of bank cards such as credit cards, debit cards and the like, ensures the safety, rapidness and accuracy of transactions, avoids the complex labor of manually inquiring blacklists, pressing lists and the like, and improves the working efficiency.

The existing POS machine is mostly placed on a counter in an exposed mode when in use, when a transaction is needed, the POS machine is directly taken up to carry out card swiping operation, and the POS machine is placed back to the counter after the operation is completed. Meanwhile, when the space is limited and the POS machine is inconvenient to place, the POS machine is placed in a far place and is taken back when in use, so that the transaction time is prolonged, the rapid transaction is not facilitated, and the transaction convenience is influenced.

Disclosure of Invention

In order to make up for the defects of the prior art, the financial tool provided by the invention combines the traditional desktop POS machine and the handheld POS machine, thereby greatly facilitating the requirements of people on financial transactions in different occasions.

The technical scheme adopted by the invention for solving the technical problems is as follows: the financial tool comprises a POS machine body, a base and an adsorption unit, wherein the POS machine body is positioned in the base and is clamped by a clamping mechanism arranged on the base; the position where the POS machine body is clamped is positioned above the gravity center of the POS machine body so as to ensure that the operating surface of the POS machine body faces upwards; wherein the content of the first and second substances,

the base is composed of a left side arm, a right side arm and a bottom edge, the left side arm, the right side arm and the bottom edge form a frame-shaped structure, a through hole is formed in the right side arm, a T-shaped groove penetrating through the through hole is formed in the right side arm from the top to the bottom, and a latch is arranged on the left end face of the right side arm; the clamping teeth are provided with a plurality of clamping teeth which are circumferentially arranged at the outer sides of the through holes, the cross sections of the clamping teeth are triangular, and the plurality of clamping teeth form a circular saw-tooth structure;

the clamping mechanism comprises a left clamping plate, a right clamping plate, a sliding shaft, a sliding block and a spring, and the left clamping plate is rotatably arranged on the left side arm through a rotating shaft; a sliding groove is axially arranged on the right end face of the sliding shaft and penetrates through the sliding shaft in the vertical direction, a fixing pin is arranged in the sliding groove of the sliding shaft, the right end of the sliding shaft penetrates through a through hole of the right side arm, and a flange structure is arranged on the left end face of the sliding shaft; the right side clamping plate is internally and horizontally provided with a unthreaded hole for the sliding shaft to pass through, the left end surface of the right side clamping plate is provided with a groove matched with a flange structure of the sliding shaft, the flange structure is positioned in the groove of the right side clamping plate, the sliding shaft passes through the unthreaded hole of the right side clamping plate, and the right end surface of the right side clamping plate is provided with a limiting hole; the sliding block is arranged in the T-shaped groove of the right side arm, the lower end of the sliding block penetrates through the sliding groove of the sliding shaft, the part of the sliding block in the sliding groove is positioned on the left side of the fixed pin, the right end face of the sliding block is an inward concave inclined face, and the bottom of the inclined face is provided with a limiting bulge; the spring mounting is on the slip shaft, and the spring is located between right side splint and the latch, and the left end of spring is a straight line section, and the straightway of spring left end inserts the spacing downthehole of right side splint, and the right-hand member of spring is an inclination with right side splint, and the right-hand member embedding of spring is between two latches. When the POS machine body needs to be placed into the base, the sliding block is pressed downwards, the sliding block moves downwards along the T-shaped groove of the right side arm, the right end face of the sliding block is an inclined face, the sliding block pushes the fixing pin to move, therefore, the sliding shaft moves leftwards, the distance between the right side clamping plate and the left side clamping plate is increased, and the POS machine body is convenient to place. When the angle of POS machine body is rotated to needs, the POS machine body is rotated to the forward, because the spring left end card is in spacing downthehole, and right side splint drive the spring rotation when rotating along with the POS machine body, because the spring right-hand member is an inclination and imbeds between two latches, and when the spring rotated, the right-hand member of spring can pass through smoothly between the latch, and when POS machine body antiport, the latch was withstood to the right-hand member of spring, had restricted the reversal of POS machine body.

The spring is manufactured by winding the hollow circular tube and dividing the hollow circular tube into two parts to perform linear cutting along the winding direction of the spring, the reinforcing ribs which take welding seams as entities are welded in the winding direction of the spring inside the hollow circular tube and are used for improving the strength of the spring, the left end of the spring is horizontally welded with the limiting strip, the limiting strip is embedded into the limiting hole, at the moment, the axial dimension of the spring is reduced, the spring is convenient to install and use, and the elasticity of the spring is ensured by the design of the reinforcing ribs.

The left side splint is provided with the rubber layer on the terminal surface with POS machine body contact, is provided with the rubber layer on the terminal surface of right side splint equally. The existence of rubber layer has increased the frictional force between POS machine body and left side splint and the right side splint, has guaranteed that the installation of POS machine body is firm.

The adsorption unit is a sucker, and the base is adsorbed on the desktop or the wall surface through the sucker. Therefore, the POS machine body has wider installation and use occasions and convenient use.

The sucker is integrally of a disc-shaped revolving body structure and comprises an outer shell, an inner shell, an outer sucker, a piston, a return element, an inner sucker and a piston rod, wherein the outer shell is fixed in a threaded through hole formed in the center of a bottom edge through threads, the inner shell is coaxially fixed on the inner side of the outer shell through threads, the outer sucker is tightly clamped between the outer shell and the inner shell in a sealing mode, the outer sucker is of a horn-shaped structure, a mounting hole is formed in the center of the outer sucker, the outer sucker is coaxially sleeved outside the inner shell through the mounting hole, an annular guide groove is coaxially arranged on the outer side of the mounting hole, a plurality of exhaust holes are formed in the circumference of the bottom of the guide groove at equal intervals, the exhaust holes are of a conical; the center of the inner shell is provided with a piston hole with a downward opening, the inner wall of the piston hole is provided with a first vent hole communicated with the exhaust hole, and the lower end face of the inner shell is provided with a second vent hole communicated with the guide groove; the piston is hermetically and slidably arranged in the piston hole, and a pressure relief hole is formed in the center of the piston; the piston rod penetrates into the piston hole from the upper end of the outer shell, the piston rod is in sealed sliding connection with the inner shell, the lower end of the piston rod is inserted into the pressure relief hole, the piston rod is connected with the piston through a rubber sealing gasket, the pressure relief hole and the lower end of the piston rod are provided with mutually matched spiral protrusions, when the piston rod is rotated, the lower end of the piston rod is separated from the pressure relief hole under the action of the spiral protrusions, and sealing is not formed between the piston rod and the piston; a return element for pulling the piston upwards is arranged above the piston; an inner sucker is installed at the bottom end of the piston rod, and the inner sucker is matched with the outer sucker to fix the base. The outer sucker, the tabletop or the wall surface, the inner shell, the piston rod and the rubber sealing gasket form a negative pressure chamber, when in adsorption, the piston rod is pressed downwards, the piston rod drives the piston to expel air in the negative pressure chamber, the air in the negative pressure chamber enters the piston hole through the second vent hole, the guide groove, the exhaust hole and the first vent hole, the exhaust hole is equivalent to a one-way valve, so that the air in the negative pressure chamber is reduced, and the piston has a tendency of moving upwards under the action of the return element, so that negative pressure is formed in the negative pressure chamber, and the adsorption is realized; when the piston rod is pressed, the inner sucking disc can be sucked, and the reliability of the suction is ensured. In order to reduce the volume and the weight of the invention, the smaller the height of the sucker is, the better the sucker is, and the requirements on the sealing property and the firmness of connection are higher, the existing sucker cannot meet the requirements, the sucker designed by the inventor of the application adopts the silica gel material with better sealing property to seal, in order to enhance the structural strength, the invention adopts the form that the outer sucker is clamped and fixed by the outer shell and the inner shell, so that the outer sucker slightly extends out to realize sealing, and the inner sucker is also arranged to be matched with the outer sucker to adsorb to realize double insurance.

The restoring element is an elastic rope which is fixed between the bottom of the piston hole and the upper surface of the piston in an S shape, one end of the elastic rope is fixed at the bottom of the piston hole or the upper surface of the piston, and the other end of the elastic rope is fixed on the piston rod. The embodiment adopts the elastic rope as the reset power of the piston, so that the height size of the sucker is greatly reduced.

The outer shell, the inner shell, the piston and the piston rod are all made of engineering plastics, the bottom of the piston hole is provided with a plurality of arc-shaped holes which are uniformly arranged along the radial direction of the piston hole, the upper surface of the piston is provided with the arc-shaped hole which is the same as the bottom of the piston hole, the elastic rope penetrates through the arc-shaped hole and is arranged in an S shape, the center of the piston rod is provided with a blind hole, the bottom of the blind hole is provided with a through hole, the aperture of the through hole is larger than the diameter of the elastic rope, when the elastic rope is installed, one end of the elastic rope is knotted, the diameter of the knot is larger than the aperture of the circular arc hole, then the elastic rope sequentially passes through the circular arc holes in an S shape, then passes through the through holes and is led out from the blind holes, and then the piston is positioned in the piston hole, the elastic rope is pre-tightened, and after the pre-tightening is finished, the elastic rope is knotted, and the diameter of the knot at the position is larger than that of the through hole and smaller than that of the blind hole.

The bottom of the piston hole is located and is equipped with between the same radial ascending adjacent circular arc hole and hold the grooving, and the upper surface of piston also is provided with the same and holds the grooving, and the stretch cord is located and holds the grooving, can avoid the extrusion wearing and tearing to the stretch cord.

The upper portion of piston rod is a style of calligraphy structure, and the staff of being convenient for wrench movement piston rod, and the top of piston rod is equipped with convex recess, and the side of convex recess is equipped with the air discharge duct, and accessible thumb presses and realizes pressing the piston rod in convex recess, and the piston hole is through hole, blind hole and air discharge duct and atmosphere UNICOM, is favorable to the absorption of sucking disc.

The outer sucker and the inner sucker are both made of silica gel materials.

The invention has the following beneficial effects:

1. the POS machine is smoothly fixed in the base through the base and the clamping mechanism, the POS machine is protected, the POS machine is prevented from being damaged, and meanwhile, the POS machine can be placed in multiple modes through the design of the sucker, so that the POS machine is convenient to store and place.

2. According to the clamping mechanism, the right side clamping plate is moved by pushing the sliding block, so that the POS machine is smoothly placed in the clamping mechanism to realize clamping, when the POS machine is rotated, the spring limits the rotation of the POS machine due to the fact that the two ends of the spring are respectively embedded into the right side clamping plate and the clamping teeth, the POS machine can only rotate in a single direction, the angle adjustment of the POS machine is realized, the fixing of the POS machine can be guaranteed, and the operation is convenient.

3. According to the invention, the rubber layers are arranged on the left clamping plate and the right clamping plate to clamp the POS machine, so that the damage to the POS machine caused by overlarge clamping force is avoided, the friction force is improved, the effective fixation of the POS machine is realized, and the protection function is effective.

4. The sucker adopted by the invention has the characteristics of low height, good sealing property, good stability and convenient use, and can greatly facilitate the placement of the POS machine body.

Drawings

The invention will be further explained with reference to the drawings.

FIG. 1 is a front view of the present invention;

FIG. 2 is an enlarged partial cross-sectional view taken at A in FIG. 1;

FIG. 3 is a schematic view of a spring of the present invention;

FIG. 4 is a schematic view of the latch of the present invention secured to the right side wall;

FIG. 5 is a schematic view of another embodiment of a spring of the present invention;

FIG. 6 is a schematic structural view of the suction cup of the present invention;

FIG. 7 is an enlarged view at B in FIG. 6;

FIG. 8 is an enlarged view at C of FIG. 6;

FIG. 9 is a schematic view of a POS machine body of the present invention mounted on a table top via a suction unit;

FIG. 10 is a schematic view of a POS machine body of the present invention mounted on a vertical plane by means of an adsorption unit;

in the figure: the POS machine body 1, the base 2, the adsorption unit 3, the left side arm 21, the right side arm 22, the bottom edge 23, the T-shaped groove 222, the latch 5, the left side clamp 41, the right side clamp 42, the sliding shaft 43, the slider 44, the spring 45, the sliding groove 431, the fixing pin 46, the limiting hole 421, the limiting protrusion 441, the hollow circular tube 451, the reinforcing rib 452, the limiting strip 453, the rubber layer 47, the outer shell 61, the inner shell 62, the outer suction disc 63, the piston 64, the return element 65, the inner suction disc 66, the piston rod 67, the piston hole 621, the first vent hole 622, the second vent hole 623, the guide groove 631, the vent hole 632, the rubber sealing gasket 641, the spiral protrusion 642, the arc hole 6211, the rope accommodating groove 6212, the blind hole 671, the through hole 672.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1, the financial instrument according to the present invention includes a POS machine body 1, a base 2, and an adsorption unit 3, wherein the POS machine body 1 is located in the base 2, and the POS machine body 1 is clamped by a clamping mechanism installed on the base 2, the adsorption unit 3 is installed at the bottom of the base 2, the base 2 is installed by the adsorption unit 3, and the POS machine body 1 can rotate in one direction relative to the base 2 in a state of being clamped by the clamping mechanism; the position where the POS machine body 1 is clamped is positioned above the gravity center of the POS machine body 1 so as to ensure that the operating surface of the POS machine body 1 faces upwards; wherein the content of the first and second substances,

as shown in fig. 1, 2 and 4, the base 2 is composed of a left arm 21, a right arm 22 and a bottom 23, the left arm 21, the right arm 22 and the bottom 23 form a frame-shaped structure, the right arm 22 is provided with a through hole, the right arm 22 is provided with a T-shaped slot 222 penetrating through the through hole from the top to the bottom, and the left end surface of the right arm 22 is provided with a latch 5; the plurality of clamping teeth 5 are arranged on the outer side of the through hole in a circumferential mode, the section of each clamping tooth 5 is triangular, and the plurality of clamping teeth 5 form a circular saw-tooth-shaped structure;

as shown in fig. 2 and 3, as an embodiment of the present invention, the clamping mechanism includes a left clamping plate 41, a right clamping plate 42, a sliding shaft 43, a slider 44 and a spring 45, wherein the left clamping plate 41 is rotatably mounted on the left side arm 21 through a rotating shaft; a sliding groove 431 is axially arranged on the right end face of the sliding shaft 43, the sliding groove 431 penetrates through the sliding shaft 43 in the vertical direction, a fixing pin 46 is arranged in the sliding groove 431 of the sliding shaft 43, the right end of the sliding shaft 43 penetrates through a through hole of the right side arm 22, and a flange structure is arranged on the left end face of the sliding shaft 43; a smooth hole for the sliding shaft 43 to pass through is horizontally formed in the right side clamping plate 42, a groove matched with a flange structure of the sliding shaft 43 is formed in the left end face of the right side clamping plate 42, the flange structure is located in the groove of the right side clamping plate 42, the sliding shaft 43 passes through the smooth hole of the right side clamping plate 42, and a limiting hole 421 is formed in the right end face of the right side clamping plate 42; the slide block 44 is arranged in the T-shaped groove 222 of the right side arm 22, the lower end of the slide block 44 penetrates through the sliding groove 431 of the sliding shaft 43, the part of the slide block 44 in the sliding groove 431 is positioned on the left side of the fixing pin 46, the right end surface of the slide block 44 is an inward concave inclined surface, and the bottom of the inclined surface is provided with a limiting protrusion 441; the spring 45 is installed on the sliding shaft 43, the spring 45 is located between the right clamping plate 42 and the clamping teeth 5, the left end of the spring 45 is a straight line segment, the straight line segment at the left end of the spring 45 is inserted into the limiting hole 421 of the right clamping plate 42, the right end of the spring 45 and the right clamping plate 42 are inclined at an angle, and the right end of the spring 45 is embedded between the two clamping teeth 5. When the POS machine body 1 needs to be placed into the base 2, the slider 44 is pressed downwards, the slider 44 moves downwards along the T-shaped groove 222 of the right side arm 22, and because the right end surface of the slider 44 is an inclined surface, the slider 44 pushes the fixing pin 46 to move, so that the sliding shaft 43 moves leftwards, the distance between the right left side clamping plate 41 and the right side clamping plate 42 is increased, and the POS machine body 1 is conveniently placed. When the angle of POS machine body 1 needs to be rotated, forward rotation POS machine body 1, because spring 45 left end card is in spacing hole 421, right side splint 42 drives spring 45 and rotates when rotating along with POS machine body 1, because spring 45 right-hand member is an inclination and imbeds between two latches 5, when spring 45 rotates, spring 45's right-hand member can pass through smoothly between latch 5, when POS machine body 1 antiport, latch 5 is withstood to spring 45's right-hand member, POS machine body 1's reversal has been restricted.

As shown in fig. 5, as another embodiment of the present invention, the spring 45 is manufactured by winding a hollow circular tube 451 and cutting the hollow circular tube 451 into two parts along a winding direction of the spring 45, a reinforcing rib 452 having a weld as a solid is welded inside the hollow circular tube 451 along the winding direction of the spring 45 to improve strength of the spring 45, a stopper 453 is horizontally welded to a left end of the spring 45, and the stopper 453 is inserted into the stopper hole 421, at this time, an axial dimension of the spring 45 is reduced to facilitate installation and use, and elasticity of the spring 45 is ensured by design of the reinforcing rib 452. Spring 45 material among this technical scheme is the spring steel material.

As shown in fig. 2, the rubber layer 47 is provided on the end surface of the left side plate 41 that contacts the body of the POS machine 1, and the rubber layer 47 is similarly provided on the end surface of the right side plate 42. The rubber layer 47 increases the friction between the body 1 and the left and

right clamping plates

41 and 42, ensuring the stable mounting of the body 1.

As shown in fig. 9 and 10, the suction unit 3 is a suction cup, and the base 2 is sucked on a table top or a wall surface through the suction cup. Therefore, the POS machine body 1 has wider installation and use occasions and convenient use.

As shown in fig. 6, as an embodiment of the present invention, the suction cup is a generally disk-shaped solid of revolution structure, and includes an outer shell 61, an inner shell 62, an outer suction cup 63, a piston 64, a return element 65, an inner suction cup 66 and a piston rod 67, the outer shell 61 is fixed in a threaded through hole formed in the center of the bottom edge 23 through threads, the inner shell 62 is coaxially fixed on the inner side of the outer shell 61 through threads, the outer sucker 63 is tightly clamped between the outer shell 61 and the inner shell 62 in a sealing way, the outer sucker 63 is in a horn-shaped structure, a mounting hole is formed in the center of the outer sucker 63, the outer sucker 63 is coaxially sleeved outside the inner shell 62 through the mounting hole, the outer side of the mounting hole is coaxially provided with a circular guide groove 631, the bottom circumference of the guide groove 631 is provided with a plurality of exhaust holes 632 at equal intervals, the exhaust holes 632 are in a conical structure with a large lower part and a small upper part, and the exhaust holes 632 are equivalent to the function of a one-way valve; the center of the inner shell 62 is provided with a piston hole 621 with a downward opening, the inner wall of the piston hole 621 is provided with a first vent hole 622 communicated with the exhaust hole 632, and the lower end surface of the inner shell 62 is provided with a second vent hole 623 communicated with the guide groove 631; the piston 64 is arranged in the piston hole 621 in a sealing and sliding manner, and a pressure relief hole is formed in the center of the piston 64; the piston rod 67 penetrates into the piston hole 621 from the upper end of the outer shell 61, the piston rod 67 is connected with the inner shell 62 in a sealing and sliding manner, the lower end of the piston rod 67 is inserted into the pressure relief hole, the piston rod 67 is connected with the piston 64 through a rubber sealing gasket 641, the pressure relief hole and the lower end of the piston rod 67 are provided with mutually matched spiral protrusions 642, when the piston rod 67 is rotated, the lower end of the piston rod 67 is separated from the pressure relief hole under the action of the spiral protrusions 642, and no sealing is formed between the piston rod 67 and the piston 64; a return element 65 for pulling the piston 64 upwards is arranged above the piston 64; an inner sucker 66 is mounted at the bottom end of the piston rod 67, and the inner sucker 66 is matched with the outer sucker 63 to fix the base 2. It should be noted that a negative pressure chamber is formed between the external suction tray 63, the table top or the wall surface, the inner shell 62, the piston 64, the piston rod 67 and the rubber sealing gasket 641, when in adsorption, the piston rod 67 is pressed downwards, the piston rod 67 drives the piston 64 to expel the air in the negative pressure chamber, the air in the negative pressure chamber enters the piston hole 621 through the second vent hole 623, the guide groove 631, the vent hole 632 and the first vent hole 622, because the vent hole 632 is equivalent to a one-way valve, the air in the negative pressure chamber is reduced, and the piston 64 has a tendency of moving upwards under the action of the return element 65, so that a negative pressure is formed in the negative pressure chamber, thereby realizing adsorption; when the piston rod 67 is pressed, the inner sucking disc 66 is sucked, and the reliability of the suction is ensured. In order to reduce the volume and the weight of the invention, the smaller the height of the sucker is, the better the sucker is, and the requirements on the sealing property and the firmness of connection are high, the existing sucker cannot meet the requirements, the sucker designed by the inventor of the application adopts the silica gel material with good sealing property to seal, in order to enhance the structural strength, the invention adopts the form that the outer shell 61 and the inner shell 62 clamp and fix the outer sucker 63, so that the outer sucker 63 slightly extends out to realize sealing, and the inner sucker 66 is also arranged to be matched with the outer sucker 63 to adsorb to realize double insurance.

As shown in fig. 6 to 7, as an embodiment of the present invention, the restoring element 65 is an elastic cord, the elastic cord is fixed between the bottom of the piston hole 621 and the upper surface of the piston 64 in an S-shape, one end of the elastic cord is fixed to the bottom of the piston hole 621 or the upper surface of the piston 64, and the other end of the elastic cord is fixed to the piston rod 67. In the embodiment, the elastic rope is used as the reset power of the piston 64, so that the height size of the sucker is greatly reduced.

As shown in fig. 6, as an embodiment of the present invention, the outer shell 61, the inner shell 62, the piston 64, and the piston rod 67 are all made of engineering plastics, the bottom of the piston hole 621 is provided with a plurality of circular holes 6211, the circular holes 6211 are uniformly arranged along the radial direction of the piston hole 621, the upper surface of the piston 64 is provided with a circular hole 6211 identical to the bottom of the piston hole 621, the elastic cord passes through the circular hole 6211 and is arranged in an S-shape, the center of the piston rod 67 is provided with a blind hole 671, the bottom of the blind hole 671 is provided with a through hole 672, the diameter of the through hole 672 is larger than the diameter of the elastic cord, when the elastic cord is installed, one end of the elastic cord is knotted, the diameter of the knot is larger than the diameter of the circular hole 6211, then the elastic cord sequentially passes through the circular holes 6211 in an S shape, then the elastic cord passes through the through hole 672 and is, and the elastic rope is pre-tightened, and after the pre-tightening is finished, the elastic rope is knotted, and the diameter of the knot at the position is larger than that of the through hole 672 and smaller than that of the blind hole 671.

As shown in fig. 7, as an embodiment of the present invention, a rope-receiving groove 6212 is provided between adjacent arc-shaped holes 6211 at the bottom of the piston hole 621 in the same radial direction, the same rope-receiving groove 6212 is also provided on the upper surface of the piston 64, and the elastic rope is located in the rope-receiving groove 6212, so as to avoid the extrusion abrasion of the elastic rope.

As shown in fig. 6, as an embodiment of the present invention, the upper portion of the piston rod 67 is a straight structure, so that a human hand can conveniently twist the piston rod 67, the top of the piston rod 67 is provided with an arc-shaped groove 673, the side of the arc-shaped groove 673 is provided with an exhaust groove, the piston rod 67 can be pressed in the arc-shaped groove 673 by a thumb, the piston hole 621 is communicated with the atmosphere through the through hole 672, the blind hole 671 and the exhaust groove, so as to facilitate the suction of the suction cup.

As an embodiment of the present invention, the outer suction cup 63 and the inner suction cup 66 are made of a silicone material.

When the POS machine body 1 needs to be placed into the base 2, the slider 44 is pressed downwards, the slider 44 moves downwards along the T-shaped groove 222 of the right side arm 22, and because the right end surface of the slider 44 is an inclined surface, the slider 44 pushes the fixing pin 46 to move, so that the sliding shaft 43 moves leftwards, the distance between the right left side clamping plate 41 and the right side clamping plate 42 is increased, and the POS machine body 1 is conveniently placed. When the angle of POS machine body 1 needs to be rotated, forward rotation POS machine body 1, because spring 45 left end card is in spacing hole 421, right side splint 42 drives spring 45 and rotates when rotating along with POS machine body 1, because spring 45 right-hand member is an inclination and imbeds between two latches 5, when spring 45 rotates, spring 45's right-hand member can pass through smoothly between latch 5, when POS machine body 1 antiport, latch 5 is withstood to spring 45's right-hand member, POS machine body 1's reversal has been restricted.

While the invention has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from its scope. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims

1. The utility model provides a financial instrument, includes POS machine body (1), base (2) and adsorbs unit (3), and POS machine body (1) is located base (2) to POS machine body (1) realizes pressing from both sides tightly through installing the clamping mechanism on base (2), adsorbs unit (3) to install in the bottom of base (2), and base (2) realize the installation through adsorbing unit (3), its characterized in that: the POS machine body (1) can rotate in a single direction relative to the base (2) in a state of being clamped by the clamping mechanism; the position where the POS machine body (1) is clamped is positioned above the gravity center of the POS machine body (1) so as to ensure that the operating surface of the POS machine body (1) faces upwards; wherein the content of the first and second substances,

the base (2) is composed of a left side arm (21), a right side arm (22) and a bottom edge (23), the left side arm (21), the right side arm (22) and the bottom edge (23) form a frame-shaped structure, a through hole is formed in the right side arm (22), a T-shaped groove (222) penetrating through the through hole is formed in the right side arm (22) from the top to the bottom, and a latch (5) is arranged on the left end face of the right side arm (22); the clamping teeth (5) are provided with a plurality of clamping teeth (5), the plurality of clamping teeth (5) are circumferentially arranged on the outer side of the through hole, the cross section of each clamping tooth (5) is triangular, and the plurality of clamping teeth (5) form a circular saw-tooth structure;

the clamping mechanism comprises a left clamping plate (41), a right clamping plate (42), a sliding shaft (43), a sliding block (44) and a spring (45), and the left clamping plate (41) is rotatably arranged on the left side arm (21) through a rotating shaft; a sliding groove (431) is axially arranged on the right end face of the sliding shaft (43), the sliding groove (431) penetrates through the sliding shaft (43) in the vertical direction, a fixing pin (46) is arranged in the sliding groove (431) of the sliding shaft (43), the right end of the sliding shaft (43) penetrates through a through hole of the right side arm (22), and a flange structure is arranged on the left end face of the sliding shaft (43); a smooth hole for the sliding shaft (43) to penetrate through is horizontally formed in the right side clamping plate (42), a groove matched with a flange structure of the sliding shaft (43) is formed in the left end face of the right side clamping plate (42), the flange structure is located in the groove of the right side clamping plate (42), the sliding shaft (43) penetrates through the smooth hole of the right side clamping plate (42), and a limiting hole (421) is formed in the right end face of the right side clamping plate (42); the sliding block (44) is arranged in a T-shaped groove (222) of the right side arm (22), the lower end of the sliding block (44) penetrates through a sliding groove (431) of the sliding shaft (43), the part of the sliding block (44) in the sliding groove (431) is positioned on the left side of the fixing pin (46), the right end face of the sliding block (44) is an inward concave inclined face, and a limiting bulge (441) is arranged at the bottom of the inclined face; spring (45) are installed on sliding shaft (43), and spring (45) are located between right side splint (42) and latch (5), and the left end of spring (45) is a straight line section, and the straightway of spring (45) left end inserts in spacing hole (421) of right side splint (42), and the right-hand member of spring (45) is an inclination with right side splint (42), and the right-hand member embedding of spring (45) is between two latches (5).

2. The financial instrument of claim 1, wherein: the spring (45) is manufactured by winding a hollow circular tube (451), dividing the hollow circular tube (451) into two parts and performing linear cutting along the winding direction of the spring (45), a reinforcing rib (452) taking a welding seam as an entity is welded in the hollow circular tube (451) along the winding direction of the spring (45) and used for improving the strength of the spring (45), a limiting strip (453) is horizontally welded at the left end of the spring (45), and the limiting strip (453) is embedded into a limiting hole (421).

3. The financial instrument of claim 1, wherein: the left side clamping plate (41) is provided with a rubber layer (47) on the end face contacting with the POS machine body (1), and the right side clamping plate (42) is also provided with a rubber layer (47) on the end face.

4. The financial instrument of claim 1, wherein: the adsorption unit (3) is a sucker, and the base (2) is adsorbed on a desktop or a wall surface through the sucker.

5. The financial instrument of claim 4, wherein: the whole body of revolution that is the disc structure of sucking disc, the sucking disc includes shell (61), inner shell (62), outer sucking disc (63), piston (64), reply component (65), interior sucking disc (66) and piston rod (67), shell (61) pass through the screw thread fixation in the screw thread through-hole that base (23) center was seted up, inner shell (62) pass through the inboard of screw thread coaxial fixation at shell (61), just outer sucking disc (63) seal clamp tightly between shell (61) and inner shell (62), and outer sucking disc (63) are loudspeaker column structure, and the center of outer sucking disc (63) is equipped with the mounting hole, and outer sucking disc (63) pass through the coaxial cover of mounting hole and establish in inner shell (62) outside, the outside coaxial annular guide way (631) that is provided with of mounting hole, the bottom circumference equidistance of guide way (631) is equipped with a plurality of exhaust holes (632), and exhaust hole (632) are big-end-up's conical structure down, the exhaust hole (632) functions as a one-way valve; the center of the inner shell (62) is provided with a piston hole (621) with a downward opening, the inner wall of the piston hole (621) is provided with a first vent hole (622) communicated with the exhaust hole (632), and the lower end face of the inner shell (62) is provided with a second vent hole (623) communicated with the guide groove (631); the piston (64) is arranged in the piston hole (621) in a sealing and sliding manner, and a pressure relief hole is formed in the center of the piston (64); the piston rod (67) penetrates into the piston hole (621) from the upper end of the outer shell (61), the piston rod (67) is in sealed sliding connection with the inner shell (62), the lower end of the piston rod (67) is inserted into the pressure relief hole, the piston rod (67) is connected with the piston (64) through a rubber sealing gasket (641), the pressure relief hole and the lower end of the piston rod (67) are provided with mutually matched spiral protrusions (642), when the piston rod (67) is rotated, the lower end of the piston rod (67) is separated from the pressure relief hole under the action of the spiral protrusions (642), and no seal is formed between the piston rod (67) and the piston (64); a return element (65) for pulling the piston (64) upwards is arranged above the piston (64); an inner sucker (66) is installed at the bottom end of the piston rod (67), and the inner sucker (66) is matched with the outer sucker (63) to fix the base (2).

6. The financial instrument of claim 5, wherein: the restoring element (65) is an elastic rope, the elastic rope is fixed between the bottom of the piston hole (621) and the upper surface of the piston (64) in an S shape, one end of the elastic rope is fixed at the bottom of the piston hole (621) or the upper surface of the piston (64), and the other end of the elastic rope is fixed on the piston rod (67).

7. The financial instrument of claim 6, wherein: the outer shell (61), the inner shell (62), the piston (64) and the piston rod (67) are all made of engineering plastics, the bottom of the piston hole (621) is provided with an arc-shaped hole (6211), the arc-shaped hole (6211) is uniformly provided with a plurality of holes along the radial direction of the piston hole (621), the upper surface of the piston (64) is provided with the arc-shaped hole (6211) which is the same as the bottom of the piston hole (621), the elastic rope passes through the arc-shaped hole (6211) and is arranged in an S shape, the center of the piston rod (67) is provided with a blind hole (671), the bottom of the blind hole (671) is provided with a through hole (672), the aperture of the through hole (672) is larger than the diameter of the elastic rope, when the elastic rope is installed, one end of the elastic rope is knotted, the diameter of the knotted hole is larger than that of the arc-shaped hole (6211), then the elastic rope sequentially passes through hole (672) and, and then the piston (64) is positioned in the piston hole (621), the elastic rope is pre-tightened, and after the pre-tightening is finished, the elastic rope is knotted, and the diameter of the knot is larger than that of the through hole (672) and smaller than that of the blind hole (671).

8. The financial instrument of claim 7, wherein: rope containing grooves (6212) are formed between adjacent circular arc-shaped holes (6211) positioned on the same radial direction at the bottom of the piston hole (621), and the same rope containing grooves (6212) are also formed in the upper surface of the piston (64).

9. The financial instrument of claim 8, wherein: the upper portion of piston rod (67) is the style of calligraphy structure, and the top of piston rod (67) is equipped with circular arc recess (673), and the side of circular arc recess (673) is equipped with the air discharge duct.

10. The financial instrument of claim 9, wherein: the outer sucker (63) and the inner sucker (66) are both made of silica gel materials.