POS machine convenient for replacing printing paper

Abstract

The utility model belongs to the technical field of POS machines, and particularly relates to a POS machine convenient to replace printing paper, which comprises a POS machine main body, a printing paper cavity is arranged on one side of the top of the POS machine main body, a rotating shaft is arranged on the top of the POS machine main body and is positioned on one side of the printing paper cavity, and a paper cover is rotatably mounted on the outer wall of the rotating shaft through a first torsion spring. First sliding grooves are symmetrically formed in the two sides of the inner wall of the printing paper cavity, first sliding blocks are slidably installed in the first sliding grooves, an arc-shaped top plate is fixed between the outer walls of the two first sliding blocks, one side of each first sliding block extends out of the corresponding first sliding groove to be fixedly provided with a first limiting block, and first connecting rods are fixed to the two ends of the rotating shaft and extend out of the paper cover correspondingly. First limiting grooves in sliding connection with the first limiting blocks are formed in the outer walls of the first connecting rods, and a second limiting block is fixed to one end of one first connecting rod; according to the utility model, printing paper can be conveniently and rapidly replaced, and the printing paper replacement efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of POS machines, and specifically relates to a POS machine which is convenient for replacing printing paper. Background Art

[0002] POS is a multifunctional terminal installed in the authorized merchants and acceptance outlets of credit cards. It can realize automatic electronic fund transfer by connecting with computers. POS supports consumption, pre-authorization, balance inquiry and transfer, and is safe, fast and reliable to use.

[0003] When replacing printing paper in an existing POS machine, due to the small design of the printing paper cavity, after opening the cover, the paper tube remaining in the cavity needs to be manually picked out or the POS machine needs to be turned over to knock out the paper tube. This operation is troublesome and cumbersome, thereby reducing the efficiency of replacing printing paper. Utility Model Content

[0004] The utility model aims to provide a POS machine which is convenient for replacing printing paper, can facilitate the rapid replacement of printing paper, and improves the efficiency of replacing printing paper.

[0005] The technical solutions adopted in this utility are as follows:

[0006] A POS machine for convenient replacement of printing paper comprises a POS machine body, a printing paper cavity is arranged on one side of the top of the POS machine body, a rotating shaft is arranged on the top of the POS machine body and located on one side of the printing paper cavity, a paper cover is rotatably installed on the outer wall of the rotating shaft through a first torsion spring, first sliding grooves are symmetrically opened on both sides of the inner wall of the printing paper cavity, a first slider is slidably installed inside the first sliding groove, an arc-shaped top plate is fixed between the outer walls of two first sliders, a first limit block is fixed on one side of the first slider extending to the outside of the first sliding groove, first connecting rods are fixed on both ends of the rotating shaft and extending to the outside of the paper cover, a first limit groove is opened on the outer wall of the first connecting rod for sliding connection with the first limit block, a second limit block is fixed on one end of one of the first connecting rods, a fixed shaft is arranged on one side of the POS machine body and located on one side of the first connecting rod, a second connecting rod is rotatably installed on the outer wall of the fixed shaft, and a second limit groove is opened on the outer wall of the second connecting rod for sliding connection with the second limit block.

[0007] Furthermore, the tail of the first connecting rod is bent upward at a bending angle of thirty-five degrees.

[0008] Furthermore, a second torsion spring is disposed on the outer wall of the fixed shaft, and two ends of the second torsion spring are respectively fixed to the second connecting rod and the POS machine body.

[0009] Furthermore, an observation window is provided on one side of the paper cover.

[0010] The technical effects achieved by this utility model are:

[0011] The utility model discloses a POS machine which is convenient for replacing printing paper. The arc-shaped top plate is arranged. By pressing the second connecting rod, the second limiting block and the second limiting groove are cooperated to rotate the first connecting rod, and the first connecting rod drives the paper cover on the rotating shaft to open. At the same time, the first limiting groove and the first limiting block are cooperated to make the first slider drive the arc-shaped top plate up and down, and the used printing paper roll is pushed out of the printing paper cavity, so as to facilitate the rapid replacement of printing paper. After the replacement is completed, the second connecting rod is loosened, and the first torsion spring and the second torsion spring are cooperated to close the paper cover. At the same time, the arc-shaped top plate drives the printing paper to move down into the printing paper cavity. The operation is simple, and the efficiency of printing paper replacement is further improved. It is more convenient and labor-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model in a front view;

[0013] Figure 2 It is a side-view stereoscopic structural schematic diagram of the utility model;

[0014] Figure 3 It is a schematic diagram of the partial three-dimensional structure of the utility model;

[0015] Figure 4 This is a practical Figure 2 Schematic diagram of the enlarged structure of area A in the middle.

[0016] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0017] 1. POS machine body; 2. Print paper cavity; 3. Rotating shaft; 4. Paper cover; 5. First torsion spring; 6. First slide groove; 7. First slider; 8. Arc top plate; 9. First connecting rod; 10. First limiting groove; 11. First limiting block; 12. Fixed shaft; 13. Second connecting rod; 14. Second torsion spring; 15. Second limiting block; 16. Second limiting groove; 17. Protective cover; 18. Observation window. DETAILED DESCRIPTION

[0018] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is specifically described below in conjunction with the embodiments. It should be understood that the following text is only used to describe one or several specific implementations of the present invention, and does not strictly limit the scope of protection specifically requested by the present invention.

[0019] like Figure 1-4As shown, a POS machine for convenient replacement of printing paper comprises a POS machine body 1, a printing paper cavity 2 is arranged on one side of the top of the POS machine body 1, a rotating shaft 3 is arranged on the top of the POS machine body 1 and located on one side of the printing paper cavity 2, a paper cover 4 is rotatably installed on the outer wall of the rotating shaft 3 through a first torsion spring 5, first sliding grooves 6 are symmetrically opened on both sides of the inner wall of the printing paper cavity 2, a first slider 7 is slidably installed inside the first sliding groove 6, an arc-shaped top plate 8 is fixed between the outer walls of the two first sliders 7, a first limiting block 11 is fixed on one side of the first slider 7 extending to the outside of the first sliding groove 6, first connecting rods 9 are fixed at both ends of the rotating shaft 3 and extending to the outside of the paper cover 4, a first limiting groove 10 slidably connected to the first limiting block 11 is opened on the outer wall of the first connecting rod 9, a second limiting block 15 is fixed on one end of one of the first connecting rods 9, a fixed shaft 12 is arranged on one side of the POS machine body 1 and located on one side of the first connecting rod 9, a second connecting rod 13 is rotatably installed on the outer wall of the fixed shaft 12, and a second connecting rod 13 is opened on the outer wall of the second connecting rod 13 The second limit groove 16 of the movable connection has a simple structure and is easy to operate. When replacing the printing paper, the second connecting rod 13 can be pressed. The second connecting rod 13 cooperates with the second limit block 15 and the second limit groove 16 to rotate the first connecting rod 9, and the first connecting rod 9 drives the rotating shaft 3 to rotate, and the rotating shaft 3 drives the paper cover 4 to open. At the same time, the first connecting rod 9 cooperates with the first limit groove 10 and the first limit block 11 to drive the first slider 7, and the two first sliders 7 drive the arc-shaped top plate 8 to move upward, so that the used printing paper roll is pushed out of the printing paper cavity 2. It is convenient to take out the printing paper roll, which is convenient and labor-saving. Then, replace the new printing paper and finally loosen the second connecting rod 13. Due to the action of the first torsion spring 5, the paper cover 4 on the rotating shaft 3 is driven to rotate and close the printing paper cavity 2. At the same time, the first connecting rod 9 is turned over, so that the first slider 7 drives the arc-shaped top plate 8 to descend, and the printing paper can be replaced quickly. The tail of the first connecting rod 9 is bent upward, and the bending angle is 35 degrees, which is convenient for connecting the first connecting rod 9 through the second connecting rod 13, and at the same time, the paper cover 4 is opened and the arc-shaped top plate 8 is moved up;

[0020] like Figure 1-2 As shown, protective covers 17 are fixed on both sides of the POS machine body 1 and above the first slide groove 6, so as to protect the first slide groove 6, the first slider 7 and the first limit block 11 from collision and damage;

[0021] like Figure 4 As shown, the outer wall of the fixed shaft 12 is provided with a second torsion spring 14, and the two ends of the second torsion spring 14 are respectively fixed to the second connecting rod 13 and the POS machine body 1. Through the arrangement of the second torsion spring 14, when one end of the second connecting rod 13 is not pressed, the second connecting rod 13 will be reset to avoid the second connecting rod 13 getting stuck and affecting the closing of the paper cover 4.

[0022] like Figure 2As shown, an observation window 18 is provided on one side of the paper cover 4, which is convenient for observing the amount of printing paper in the printing paper cavity 2 and facilitating timely replacement;

[0023] like Figure 1 As shown, a pressing block is fixed at one end of the second connecting rod 13, which is convenient for pressing the second connecting rod 13 by hand, thereby facilitating the opening of the paper cover 4 and the upward movement of the arc-shaped top plate 8.

[0024] The working principle of the utility model is as follows: when replacing the printing paper, the second connecting rod 13 can be pressed, and the second connecting rod 13 can make the first connecting rod 9 rotate through the cooperation of the second limiting block 15 and the second limiting groove 16, and the first connecting rod 9 drives the rotating shaft 3 to rotate, and the rotating shaft 3 drives the paper cover 4 to open, and at the same time, the first connecting rod 9 cooperates with the first limiting groove 10 and the first limiting block 11 to drive the first slider 7, and the two first sliders 7 drive the arc-shaped top plate 8 to move upward, so as to push the used printing paper roll out of the printing paper cavity 2, which is convenient for taking out the printing paper roll, which is more convenient and labor-saving, and then replace the new printing paper, and finally release the second connecting rod 13, because of the action of the first torsion spring 5, the paper cover 4 on the rotating shaft 3 is driven to rotate and close the printing paper cavity 2, and at the same time, the first connecting rod 9 flips over, so that the first slider 7 drives the arc-shaped top plate 8 to descend, and the replacement of the printing paper can be completed quickly.

[0025] The above is only a preferred embodiment of the present invention. It should be noted that, for ordinary technicians in the field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A POS machine for conveniently replacing printing paper, comprising a POS machine body (1), wherein a printing paper cavity (2) is provided on one side of the top of the POS machine body (1), and characterized in that: A rotating shaft (3) is arranged at the top of the POS machine body (1) and located on one side of the printing paper cavity (2); a paper cover (4) is rotatably mounted on the outer wall of the rotating shaft (3) through a first torsion spring (5); first sliding grooves (6) are symmetrically arranged on both sides of the inner wall of the printing paper cavity (2); a first slider (7) is slidably mounted inside the first sliding groove (6); an arc-shaped top plate (8) is fixed between the outer walls of the two first sliders (7); a first limit block (11) is fixed on one side of the first slider (7) extending to the outside of the first sliding groove (6); both ends of the rotating shaft (3) and extending A first connecting rod (9) is fixed to the outside of the paper cover (4), and a first limiting groove (10) is provided on the outer wall of the first connecting rod (9) and is slidably connected to the first limiting block (11). A second limiting block (15) is fixed to one end of one of the first connecting rods (9). A fixed shaft (12) is provided on one side of the POS machine body (1) and located on one side of the first connecting rod (9). A second connecting rod (13) is rotatably mounted on the outer wall of the fixed shaft (12), and a second limiting groove (16) is provided on the outer wall of the second connecting rod (13) and is slidably connected to the second limiting block (15).

2. A POS machine for conveniently replacing printing paper according to claim 1, characterized in that: The tail of the first connecting rod (9) is bent upwards at a bending angle of thirty-five degrees.

3. A POS machine for conveniently replacing printing paper according to claim 1, characterized in that: Protective covers (17) are fixed on both sides of the POS machine body (1) and above the first slide slot (6).

4. A POS machine for conveniently replacing printing paper according to claim 1, characterized in that: The outer wall of the fixed shaft (12) is provided with a second torsion spring (14), and the two ends of the second torsion spring (14) are respectively fixed to the second connecting rod (13) and the POS machine body (1).

5. The POS machine for conveniently replacing printing paper according to claim 1, characterized in that: An observation window (18) is provided on one side of the paper cover (4).

6. A POS machine for conveniently replacing printing paper according to claim 1, characterized in that: A pressing block is fixed to one end of the second connecting rod (13).

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