POS machine protection device of cashier terminal

By designing protective and adjustment devices on the POS machine to prevent screen collisions and uneven aging, the problem of easily damaged POS machine screens has been solved, improving reliability and practicality.

CN224190529UActive Publication Date: 2026-05-01SHENZHEN ZHENGYI ELECTRONICS CABLE CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN ZHENGYI ELECTRONICS CABLE CO LTD
Filing Date
2025-05-22
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Existing POS machine screens are easily damaged by external impacts and pressure during use, resulting in screen breakage and affecting normal use and lifespan.

Method used

A POS machine protection device was designed, which includes a protective device and an adjustment device. The protective device prevents items from colliding with the screen through an irregularly shaped frame and a protective plate, while the adjustment device avoids uneven aging caused by prolonged use at the same angle by adjusting the angle of the POS machine.

Benefits of technology

It effectively prevents screen breakage, improves the reliability and usability of the device, and avoids problems such as localized screen damage and reduced clarity.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224190529U_ABST
    Figure CN224190529U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of POS machine protection, in particular to a POS machine protection device of a cashier terminal. The POS machine comprises a POS machine body, a screen is installed on the surface of the POS machine body, protection devices are arranged on the two sides of the POS machine body, each protection device comprises two special-shaped frames, the two special-shaped frames are fixedly connected with the two sides of the POS machine body respectively, the two sides of the POS machine body are fixedly connected with blocking frames, and the blocking frames are fixedly connected with the two sides of the POS machine body. Protection plates are slidably connected to the inner surfaces of the two special-shaped frames, square blocks are fixedly connected to the surfaces of the protection plates, and the surfaces of the protection plates are slidably connected with blocking frames. The problems that in daily use of a worker, when the worker places articles, the placed articles may collide with a screen, so that the screen may be broken for a long time, the device cannot normally display transaction information, and an operation interface and a cashier flow are forced to be interrupted are solved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of POS machine protection technology, and in particular to a POS machine protection device for a cash register terminal. Background Technology

[0002] In commercial checkout scenarios, POS machines, as important transaction terminal devices, are widely used in various shops, supermarkets, and other places. However, existing POS machines face many problems during use. Their screens and other critical parts are easily damaged by external impacts and pressure, which can lead to screen damage and affect the normal use and lifespan of the POS machine.

[0003] The inventors believe that the following defects often exist: during daily use, when staff place items, the items may collide with the screen. Over time, this may cause the screen to crack, resulting in the device being unable to display transaction information and the operating interface normally, and the cashier process being forced to stop. Therefore, a POS machine protection device for cashier terminals is proposed to address the above problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies where items placed by staff may collide with the screen, potentially causing the screen to shatter over time. This invention provides a protective device for POS terminals.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a POS machine protection device for a cash register terminal, comprising a POS machine body, a screen mounted on the surface of the POS machine body, and protective devices provided on both sides of the POS machine body. The protective devices include two irregularly shaped frames, which are respectively fixedly connected to both sides of the POS machine body. A blocking frame is fixedly connected to both sides of the POS machine body. A protective plate is slidably connected to the inner surface of the two irregularly shaped frames. A square block is fixedly connected to the surface of the protective plate, and the surface of the protective plate is slidably connected to the blocking frame.

[0006] The aforementioned components achieve the following effect: by setting up a protective device, the screen is protected, preventing items from colliding with the screen during daily use. Over time, this could lead to screen breakage, causing the device to malfunction in displaying transaction information and the user interface, and forcing the interruption of the checkout process. This improves the reliability of the device.

[0007] Preferably, a fixing rod is fixedly connected to one side of the irregular frame, and a single-hole plate is rotatably connected to the arc surface of the fixing rod. An L-shaped plate is fixedly connected to one side of the irregular frame, and a threaded rod is threadedly inserted into the L-shaped plate. The arc surface of the threaded rod is threadedly connected to the single-hole plate, and the arc surface of the threaded rod is threadedly connected to the irregular frame.

[0008] The aforementioned components achieve the following effect: they remove the protective panel, preventing it from being subjected to long-term pressure and friction from external objects, which could damage or blur the surface of the protective panel, reduce the clarity of the screen display, cause visual interference, and make it difficult for staff to accurately read transaction information.

[0009] Preferably, a retaining ring is fixedly connected to the arc surface of the threaded rod, and the surface of the retaining ring is in contact with the single-hole plate.

[0010] The effect achieved by the above-mentioned components is to prevent the threaded rod from being pulled out, thus avoiding the situation where the operator rotates the threaded rod too many times, causing the arc surface of the threaded rod to separate from the L-shaped plate. This would require the operator to reinstall the threaded rod the next time it is used, thus increasing the operator's workload.

[0011] Preferably, a torsion spring is fitted onto the arc surface of the fixing rod, and the two ends of the torsion spring are fixedly connected to the fixing rod and the single-hole plate, respectively.

[0012] The aforementioned components achieve the following effect: they automatically open the single-hole plate while keeping it in the open position, making it convenient for staff to replace the protective plate.

[0013] Preferably, the POS machine body is provided with adjustment devices on both sides. The adjustment devices include two round rods, which are fixedly connected to the two sides of the POS machine body respectively. A hollow tube is fixedly connected to one end of each round rod. A square rod is slidably connected inside the hollow tube. A short rod is fixedly connected to the surface of the hollow tube. A double arc plate is fixedly connected to one end of the short rod. An insert rod is slidably inserted into the double arc plate. Several round grooves are opened on one side of the square rod.

[0014] The effect achieved by the above components is as follows: by setting the adjustment device, the angle of the POS machine body can be adjusted, avoiding the use at the same angle for a long time. This prevents certain areas of the screen from being affected by factors such as long-term exposure to the same light, electron beam bombardment or pressure, which may cause the screen to age at different rates. This results in some areas of the screen deteriorating faster and may cause local damage such as black spots and bright lines, thus improving the practicality of the device.

[0015] Preferably, a spring is fitted onto the arc surface of the insertion rod, and the two ends of the spring are fixedly connected to the insertion rod and the double arc plate, respectively.

[0016] The effect achieved by the above components is to improve the stability of the insertion rod, and to prevent the POS machine body from being subjected to external forces and shaking to a certain extent, which would cause the insertion rod to slide in the circular groove of the square rod due to the influence of external forces, resulting in the insertion rod separating from the circular groove of the square rod and a decrease in the adjustment effect.

[0017] Preferably, the arc surface of the short rod is rotatably connected to a limiting plate, and the surface of the limiting plate is slidably connected to the hollow tube.

[0018] The aforementioned components achieve the following effect: they limit the position of the insert rod, preventing the insert rod from being affected by external forces when the operator adjusts the position of the square rod, thus avoiding a collision between the insert rod and the square rod, which could cause damage to either the insert rod or the square rod.

[0019] In summary, the beneficial effects of this utility model are as follows:

[0020] 1. In this utility model, by setting a protective device, the screen is protected, avoiding the situation where items placed by staff may collide with the screen during daily use. Over time, this could lead to the screen breaking, causing the device to be unable to display transaction information and the operation interface normally, and the cashier process to be interrupted. This improves the reliability of the device.

[0021] 2. In this utility model, by setting an adjustment device, the angle of the POS machine body can be adjusted, avoiding the situation where the screen is used at the same angle for a long time. This prevents certain areas of the screen from being affected by factors such as long-term exposure to the same light, electron beam bombardment, or pressure, which may cause the screen to age at different rates. This results in some areas of the screen experiencing faster performance degradation and the possible occurrence of local damage such as black spots and bright lines, thus improving the practicality of the device. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 2 This is a schematic diagram of the protective device in this utility model;

[0024] Figure 3 In this utility model Figure 2 Partial structural diagram;

[0025] Figure 4 In this utility model Figure 3 Enlarged view of point A;

[0026] Figure 5 This is a schematic diagram of the adjusting device in this utility model;

[0027] Figure 6 This is a partial structural diagram of the adjustment device in this utility model.

[0028] Legend: 1. POS machine body; 2. Protective device; 3. Screen; 4. Adjustment device; 201. Irregular frame; 202. Blocking frame; 203. Protective plate; 204. Square block; 205. Fixing rod; 206. Single-hole plate; 207. L-shaped plate; 208. Threaded rod; 209. Blocking ring; 210. Torsion spring; 41. Round rod; 42. Hollow tube; 43. Square rod; 44. Short rod; 45. Double arc plate; 46. Insert rod; 47. Spring; 48. Limiting plate. Detailed Implementation

[0029] Reference Figure 1 As shown, this utility model provides a technical solution: a POS machine protection device for a cash register terminal, including a POS machine body 1, a screen 3 mounted on the surface of the POS machine body 1, and protective devices 2 on both sides of the POS machine body 1. By setting the protective devices 2, the screen 3 is protected, preventing items from colliding with the screen 3 during daily use. Over time, this could cause the screen 3 to break, resulting in the device being unable to display transaction information or the operating interface normally, and the cash register process being forced to stop. This improves the reliability of the device. Adjustment devices 4 are set on both sides of the POS machine body 1, which adjust the angle of the POS machine body 1. This avoids the screen 3 from being used at the same angle for a long time. Some areas of the screen 3 may be affected by factors such as long-term exposure to the same light, electron beam bombardment, or pressure, resulting in inconsistent aging rates of the screen 3. This causes some areas of the screen 3 to degrade faster, and may result in local damage such as black spots or bright lines. This improves the practicality of the device.

[0030] The specific settings and functions of its protection device 2 and adjustment device 4 will be described in detail below.

[0031] Reference Figure 2 , Figure 3 and Figure 4As shown in this embodiment: the protective device 2 includes two irregularly shaped frames 201, which are fixedly connected to both sides of the POS machine body 1. A blocking frame 202 is fixedly connected to both sides of the POS machine body 1. A protective plate 203 is slidably connected to the inner surface of the two irregularly shaped frames 201. A square block 204 is fixedly connected to the surface of the protective plate 203, and the surface of the protective plate 203 is slidably connected to the blocking frame 202. A fixing rod 205 is fixedly connected to one side of the irregularly shaped frame 201. A single-hole plate 206 is rotatably connected to the arc surface of the fixing rod 205. An L-shaped plate 207 is fixedly connected to one side of the irregularly shaped frame 201. A threaded rod 208 is threadedly inserted into the L-shaped plate 207, and the arc surface of the threaded rod 208 is threadedly connected to the single-hole plate 206. The arc surface of the threaded rod 208 is threadedly connected to the irregular frame 201. When the worker replaces the protective plate 203, first, the worker rotates the threaded rod 208 within the L-shaped plate 207 until the arc surface of the threaded rod 208 separates from the single-hole plate 206. Then, the worker can rotate the single-hole plate 206 and slide it on the surface of the protective plate 203 until the single-hole plate 206 no longer affects the movement of the protective plate 203. Then, the worker can pull the square block 204 to move the protective plate 203 to slide on the inner surface of the irregular frame 201 until the protective plate 203 is completely separated from the irregular frame 201. At this point, the protective plate 203 is disassembled, preventing it from being subjected to long-term pressure and friction from external objects, which could cause surface damage. Damage or blurring can reduce the clarity of the content displayed on screen 3, causing visual interference and making it difficult for staff to accurately read transaction information. A retaining ring 209 is fixedly connected to the arc surface of the threaded rod 208. The surface of the retaining ring 209 is in contact with the single-hole plate 206. When staff need to remove the protective plate 203, they first rotate the threaded rod 208, causing the retaining ring 209 to rotate within the L-shaped plate 207 until the surface of the retaining ring 209 is in contact with the L-shaped plate 207. At this point, the arc surface of the threaded rod 208 is completely separated from the single-hole plate 206, thus preventing the threaded rod 208 from being pulled off. This avoids excessive rotation of the threaded rod 208, which could lead to damage to the threaded rod 203. The arc surface of plate 08 is separated from the L-shaped plate 207. This requires secondary installation by staff during subsequent use, increasing their workload. A torsion spring 210 is fitted onto the arc surface of the fixing rod 205. Both ends of the torsion spring 210 are fixedly connected to the fixing rod 205 and the single-hole plate 206, respectively. When staff need to disassemble the protective plate 203, they first release the limiting force on the single-hole plate 206. The torque of the torsion spring 210 then causes the single-hole plate 206 to rotate on the arc surface of the fixing rod 205 until it no longer interferes with the movement of the protective plate 203. This achieves the effect of automatically opening the single-hole plate 206 while keeping it in the open position, facilitating the replacement of the new protective plate 203.

[0032] Reference Figure 5 and Figure 6 As shown, specifically, the adjusting device 4 includes two round rods 41, which are fixedly connected to both sides of the POS machine body 1. A hollow tube 42 is fixedly connected to one end of each round rod 41. A square rod 43 is slidably connected inside the hollow tube 42. A short rod 44 is fixedly connected to the surface of the hollow tube 42. A double-arc plate 45 is fixedly connected to one end of the short rod 44. An insert rod 46 is slidably inserted into the double-arc plate 45. Several round grooves are opened on one side of the square rod 43. A spring 47 is sleeved on the arc surface of the insert rod 46. The two ends of the spring 47 are fixedly connected to the insert rod 46 and the double-arc plate 45, respectively. When the operator needs to adjust the angle of the POS machine body 1, the operator first pulls the insertion rod 46 to slide within the double-arc plate 45. At this time, the spring 47 is stretched until the arc surface of the insertion rod 46 separates from the circular groove of the square rod 43. Then, the operator can pull the square rod 43 to slide within the hollow tube 42 until the square rod 43 moves to the required length. The operator then releases the insertion rod 46. At this time, the rebound force of the spring 47 causes the insertion rod 46 to slide within the double-arc plate 45 until the insertion rod 46 inserts into the circular groove of the square rod 43. This improves the stability of the insertion rod 46. To prevent the POS machine body 1 from being subjected to external forces and shaking to a certain extent, which could cause the insertion rod 46 to slide within the circular groove of the square rod 43, resulting in the insertion rod 46 separating from the circular groove of the square rod 43 and reducing the adjustment effect, the arc surface of the short rod 44 is rotatably connected to the limiting plate 48. The surface of the limiting plate 48 is slidably connected to the hollow tube 42. When the operator needs to adjust the height of the POS machine body 1, the operator first releases the limiting of the square rod 43, and the insertion rod 46 does not affect the rotation of the limiting plate 48. At this point, the operator can rotate the limiting plate 48 on the arc surface of the short rod 44 until the limiting plate 48 rotates to 180 degrees. Then, the operator can release the insertion rod 46. The rebound force of the spring 47 will drive the insertion rod 46 to move until the insertion rod 46 is inserted into the limiting plate 48. This achieves the effect of limiting the position of the insertion rod 46, preventing the insertion rod 46 from being affected by external forces when the operator adjusts the position of the square rod 43. This would prevent the insertion rod 46 from being affected by external forces and causing a certain degree of positional change, which could lead to a collision between the insertion rod 46 and the square rod 43, resulting in damage to the insertion rod 46 or the square rod 43.

[0033] Working principle: When the staff replaces the protective plate 203, the staff first rotates the threaded rod 208 to drive the blocking ring 209 to rotate inside the L-shaped plate 207 until the surface of the blocking ring 209 is in contact with the L-shaped plate 207. At this time, the arc surface of the threaded rod 208 is completely separated from the single-hole plate 206. Then, the torque of the torsion spring 210 drives the single-hole plate 206 to rotate on the arc surface of the fixed rod 205 until the single-hole plate 206 no longer affects the movement of the protective plate 203. Then, the staff can pull the square block 204 to drive the protective plate 203 to slide on the inner surface of the irregular frame 201 until the protective plate 203 is completely separated from the irregular frame 201. This achieves the effect of protecting the screen 3, preventing the items placed by the staff from colliding with the screen 3 during daily use. Over time, this may cause the screen 3 to break, resulting in the device being unable to display transaction information and the operation interface normally, and the cashier process being forced to stop. This improves the reliability of the device.

[0034] When the operator needs to adjust the angle of the POS machine body 1, firstly, the operator pulls the insertion rod 46 to slide within the double-arc plate 45. At this time, the spring 47 is stretched, and the insertion rod 46 does not affect the rotation of the limiting plate 48. The operator can then rotate the limiting plate 48 around the arc surface of the short rod 44 until the limiting plate 48 has rotated 180 degrees. After that, the operator can release the insertion rod 46, and the rebound force of the spring 47 will cause the insertion rod 46 to move until it is inserted into the limiting plate 48. Then, the operator can pull the square rod 43 to slide within the hollow tube 42 until the square rod 43 has moved to the required length. Finally, the operator pulls the insertion rod 46 to slide within the circular groove of the limiting plate 48 until the insertion rod 46... The arc surface separates from the limiting plate 48. Then, the operator rotates the limiting plate 48 until it no longer affects the movement of the insertion rod 46. The operator releases the insertion rod 46, and the rebound force of the spring 47 drives the insertion rod 46 to slide within the double arc plate 45 until the insertion rod 46 is inserted into the circular groove of the square rod 43. This achieves the effect of adjusting the angle of the POS machine body 1, avoiding prolonged use at the same angle. Some areas of the screen 3 may be affected by factors such as long-term exposure to the same light, electron beam bombardment, or pressure, resulting in inconsistent aging rates of the screen 3. This causes some areas of the screen 3 to degrade faster, and may lead to localized damage such as black spots and bright lines, thus improving the practicality of the device.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A POS machine protection device for a cash register terminal, comprising a POS machine body (1), characterized in that: The surface of the POS machine body (1) is equipped with a screen (3). The two sides of the POS machine body (1) are provided with protective devices (2). The protective devices (2) include two irregular frames (201). The two irregular frames (201) are fixedly connected to the two sides of the POS machine body (1). The two sides of the POS machine body (1) are fixedly connected with blocking frames (202). The inner surfaces of the two irregular frames (201) are slidably connected with protective plates (203). The surface of the protective plates (203) is fixedly connected with square blocks (204). The surface of the protective plates (203) is slidably connected with the blocking frames (202).

2. The POS machine protection device for a cash register terminal according to claim 1, characterized in that: A fixing rod (205) is fixedly connected to one side of the irregular frame (201). A single-hole plate (206) is rotatably connected to the arc surface of the fixing rod (205). An L-shaped plate (207) is fixedly connected to one side of the irregular frame (201). A threaded rod (208) is threadedly inserted into the L-shaped plate (207). The arc surface of the threaded rod (208) is threadedly connected to the single-hole plate (206). The arc surface of the threaded rod (208) is threadedly connected to the irregular frame (201).

3. The POS machine protection device for a cash register terminal according to claim 2, characterized in that: The threaded rod (208) has a blocking ring (209) fixedly connected to its arc surface, and the surface of the blocking ring (209) is in contact with the single-hole plate (206).

4. A POS machine protection device for a cash register terminal according to claim 2, characterized in that: The arc surface of the fixing rod (205) is fitted with a torsion spring (210), and the two ends of the torsion spring (210) are fixedly connected to the fixing rod (205) and the single-hole plate (206) respectively.

5. A POS machine protection device for a cash register terminal according to claim 1, characterized in that: The POS machine body (1) is provided with adjustment devices (4) on both sides. The adjustment device (4) includes two round rods (41). The two round rods (41) are fixedly connected to the two sides of the POS machine body (1). A hollow tube (42) is fixedly connected to one end of the round rod (41). A square rod (43) is slidably connected inside the hollow tube (42). A short rod (44) is fixedly connected to the surface of the hollow tube (42). A double arc plate (45) is fixedly connected to one end of the short rod (44). An insert rod (46) is slidably inserted inside the double arc plate (45). Several round grooves are opened on one side of the square rod (43).

6. A POS machine protection device for a cash register terminal according to claim 5, characterized in that: The arc surface of the insertion rod (46) is fitted with a spring (47), and the two ends of the spring (47) are fixedly connected to the insertion rod (46) and the double arc plate (45) respectively.

7. A POS machine protection device for a cash register terminal according to claim 5, characterized in that: The arc surface of the short rod (44) is rotatably connected to a limiting plate (48), and the surface of the limiting plate (48) is slidably connected to the hollow tube (42).