A handheld mobile marketing terminal

Abstract

The present invention discloses a handheld mobile marketing terminal, including a terminal device, wherein an anti-fall mechanism is arranged on the outside of the terminal device, wherein the anti-fall mechanism comprises a shell, a fixing rod, a tension spring, a mounting shell, a first slider, a positioning plate, a reset spring and a clamping head, wherein the fixing rod is fixedly connected to both sides of the bottom surface inside the shell, and the tension spring is movably connected to the fixing rod, and the mounting shell is movably connected to the fixing rod through a bottom block symmetrical to the bottom surface, and the bottom block is fixedly connected to the tension spring, and the bottom block is movably connected to the shell through the first sliders on both sides. The present invention belongs to the field of mobile marketing terminals, wherein the anti-fall mechanism is arranged, and after placing the terminal device into the mounting shell, the mounting shell is pushed into the shell and stuck, which not only facilitates the user to install and disassemble the terminal device, but also protects the terminal device to avoid direct damage after the terminal device falls.

Description

Technical Field

[0001] The present invention relates to the field of mobile marketing terminals, and in particular to a handheld mobile marketing terminal. Background Art

[0002] Handheld mobile marketing terminals refer to POS machines. POS means "point of sale" in Chinese, and its full name is point of sale information management system. It is a terminal reader equipped with barcode or OCR code technology, and has cash or barter quota teller function. Its main task is to provide data services and management functions for commodity and media transactions, and to conduct non-cash settlement. POS is a multi-functional terminal. When it is installed in the credit card's special merchants and acceptance outlets and connected to the computer network, it can realize automatic electronic fund transfer. It has functions such as supporting consumption, pre-authorization, balance inquiry and transfer, and is safe, fast and reliable to use. Basic business intelligence is difficult to obtain in bulk transactions. The introduction of POS system is mainly to solve the blind spots of retail information management. It is an important part of the chain store management information system. However, during the use of traditional handheld mobile marketing terminals, due to the lack of protective measures, users' palms are prone to sweating after storing the mobile marketing terminals for a long time, which makes the mobile marketing terminals prone to falling and damage. The impact force generated when they come into contact with the ground after falling will also affect the electronic components inside the mobile marketing terminal. In addition, during the process of contactless card swiping with the handheld mobile marketing terminal, the other hand is required to continuously keep the card attached to the mobile marketing terminal and keep it still. Once the card is released, the mobile marketing terminal cannot read the content on the card, and the user's hands are restricted and cannot perform other operations, which brings inconvenience to the user. Summary of the invention

[0003] The main purpose of the present invention is to provide a handheld mobile marketing terminal, which can effectively solve the problems in the background technology.

[0004] To achieve the above purpose, the technical solution adopted by the present invention is:

[0005] A handheld mobile marketing terminal comprises a terminal device, wherein an anti-fall mechanism is arranged on the outside of the terminal device, wherein the anti-fall mechanism comprises a shell, a fixing rod, a tension spring, a mounting shell, a first slider, a positioning plate, a reset spring and a clamping head, wherein the fixing rod is fixedly connected to both sides of the bottom surface inside the shell, and the tension spring is movably connected to the fixing rod, the mounting shell is movably connected to the fixing rod through a bottom block symmetrical to the bottom surface, and the bottom block is fixedly connected to the tension spring, the bottom block is movably connected to the shell through the first sliders on both sides, the positioning plate is fixedly connected to the rear end of the mounting shell, and the reset spring is fixedly connected to both sides of the positioning plate, the clamping head is fixedly connected to the front end of the reset spring, a fixing mechanism is arranged in the side wall of the shell, and the fixing mechanism comprises an L-shaped clamping head. The plate and the compression spring, the L-shaped card plate is movably connected to the shell through the second sliding blocks on both sides of the bottom surface, and the compression spring is fixedly connected to the outer wall of the L-shaped card plate on both sides and is fixedly connected to the shell, the bottom end of the shell is provided with a buffer mechanism, the buffer mechanism comprises a fixed bar, a connecting rod, a shock-absorbing spring, an upper concave block, a lower concave block, a buffer rod and a buffer plate, the fixed bar is fixedly connected to the two sides of the shell, and the connecting rod is fixedly connected to the bottom surface of the fixed bar, the shock-absorbing spring is movably connected to the connecting rod, the two upper concave blocks are movably connected to the connecting rod through the connecting block on the top surface, and the connecting block is fixedly connected to one end of the shock-absorbing spring, the lower concave block is fixedly connected to both sides of the top surface of the buffer plate, and the buffer rod is movably connected between the upper concave block and the lower concave block through the rotating blocks at both ends.

[0006] Preferably, a notch is provided at the front end of the top surface of the shell, and a group of symmetrical positioning holes are respectively provided on the side walls of the shell, a group of symmetrical first grooves are provided on the bottom surface of the shell, and second sliding grooves are respectively provided on both sides of the inner wall of the first groove.

[0007] Preferably, the fixing rod is fixedly installed in the first groove, and a tension spring is mounted on the rod body of the fixing rod, one end of the tension spring is fixedly installed on the bottom end wall of the first groove, a group of symmetrical bottom blocks are fixedly installed on the bottom surface of the mounting shell, and a first connecting hole is opened on the front end wall of the bottom block, and the bottom block is installed on the fixing rod through the first connecting hole.

[0008] Preferably, the other end of the tension spring is fixedly mounted on the rear end wall of the bottom block, and first sliders are fixedly mounted on both side walls of the bottom block, respectively, and the first sliders are slidably mounted in the second sliding grooves.

[0009] Preferably, a positioning plate is fixedly mounted on the rear end wall of the mounting shell, and spring grooves are respectively provided on the side walls on both sides of the positioning plate, one end of the return spring is fixedly mounted on the bottom of the spring groove, and a clamp is fixedly mounted on the other end of the return spring, and the clamp is located in the positioning hole.

[0010] Preferably, an insertion opening is further provided on the side wall of the shell, and first sliding grooves are respectively provided on both sides of the bottom surface of the groove of the insertion opening.

[0011] Preferably, the two L-shaped card plates are respectively located in the insertion port, and second sliders are fixedly installed on both sides of the bottom surface of the L-shaped card plate, and the second sliders are slidably installed in the first sliding groove, and a group of symmetrical compression springs are fixedly installed between the outer wall of the L-shaped card plate and the inner wall of the groove of the insertion port.

[0012] Preferably, the fixing bar is fixedly mounted on both side walls of the housing, and a second groove is formed on the bottom surface of the fixing bar, and T-shaped grooves are respectively formed on both sides of the inner wall of the second groove.

[0013] Preferably, the connecting rod is fixedly installed in the second groove, and a shock-absorbing spring is mounted on the rod body of the connecting rod, connecting blocks are fixedly installed at both ends of the shock-absorbing spring, a second connecting hole is opened on the side wall of the connecting block, and the connecting block is installed on the connecting rod through the second connecting hole, and T-shaped sliders are fixedly installed on the side walls of the connecting block, and the T-shaped sliders are slidably installed in the T-shaped slide groove.

[0014] Preferably, an upper concave block is fixedly installed on the bottom surface of the connecting block, and a group of symmetrical lower concave blocks are fixedly installed on both sides of the top surface of the buffer plate, and rotation holes are respectively opened on both sides of the inner walls of the recesses of the upper and lower concave blocks, and the buffer rod is located between the recesses of the upper and lower concave blocks, and rotating blocks are respectively fixedly installed on the side walls on both sides of the upper and lower ends of the buffer rod, and the rotating blocks are inserted and installed in the rotating holes.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The fixing mechanism is set up, which can clamp the card to be disconnected between the L-shaped card plates under the elastic action of the compression spring, so that the terminal device can continuously and effectively read the information on the card, which can not only prevent others from peeping at the card information, but also free the user's other hand to do other things;

[0017] 2. The anti-fall mechanism is set up. After placing the terminal device in the installation shell, the installation shell is pushed into the outer shell and stuck. This not only facilitates the user to install and remove the terminal device, but also protects the terminal device to prevent the terminal device from being directly damaged after falling;

[0018] 3. The buffer mechanism is used in conjunction with the anti-fall mechanism. While the anti-fall mechanism prevents the terminal device from being damaged, it further implements buffering and shock absorption operations on the terminal device to prevent the vibration impact force generated when the shell contacts the ground after falling from the shell from affecting the electronic components inside the terminal device in the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention after installation;

[0020] Figure 2 This is a schematic diagram of the overall structure of the present invention before installation;

[0021] Figure 3 It is a schematic diagram of the overall structure of the housing of the present invention;

[0022] Figure 4 It is a schematic diagram of the structural disassembly of the anti-fall mechanism of the present invention;

[0023] Figure 5 It is a schematic diagram of the overall structure of the fixing mechanism of the present invention;

[0024] Figure 6 It is a schematic diagram of the structural disassembly of the buffer mechanism of the present invention;

[0025] Figure 7 It is a schematic cross-sectional bottom view of the fixing strip of the present invention.

[0026] In the figure: 1. terminal device; 2. anti-fall mechanism; 3. fixing mechanism; 4. buffer mechanism; 5. shell; 6. notch; 7. insertion port; 8. first slide groove; 9. positioning hole; 10. first groove; 11. second slide groove; 12. fixing rod; 13. tension spring; 14. mounting shell; 15. bottom block; 16. first connecting hole; 17. first slider; 18. positioning plate; 19. spring groove; 20. reset spring; 21. clamp; 22. L-shaped clamp; 23. second slider; 24. compression spring; 25. fixing strip; 26. connecting rod; 27. shock-absorbing spring; 28. connecting block; 29. ​​second connecting hole; 30. T-shaped slider; 31. upper concave block; 32. lower concave block; 33. rotating hole; 34. buffer rod; 35. rotating block; 36. buffer plate; 37. second groove; 38. T-shaped slide groove. DETAILED DESCRIPTION

[0027] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0028] like Figure 1-Figure 7As shown, a handheld mobile marketing terminal includes a terminal device 1, the terminal device 1 is provided with an anti-fall mechanism 2 on the outside, the anti-fall mechanism 2 includes a shell 5, a fixing rod 12, a tension spring 13, a mounting shell 14, a first slider 17, a positioning plate 18, a reset spring 20 and a clamping head 21, the fixing rod 12 is fixedly connected to both sides of the bottom surface inside the shell 5, and the tension spring 13 is movably connected to the fixing rod 12, the mounting shell 14 is movably connected to the fixing rod 12 through a bottom block 15 symmetrical to the bottom surface, and the bottom block 15 is fixedly connected to the tension spring 13, the bottom block 15 is movably connected to the shell 5 through the first sliders 17 on both sides, the positioning plate 18 is fixedly connected to the rear end of the mounting shell 14, and the reset spring 20 is fixedly connected to both sides of the positioning plate 18, the clamping head 21 is fixedly connected to the front end of the reset spring 20, and a fixing mechanism 3 is provided in the side wall of the shell 5, the fixing mechanism 3 includes an L-shaped clamping plate 22 And compression spring 24, the L-shaped card plate 22 is movably connected to the shell 5 through the second sliders 23 on both sides of the bottom surface, and the compression spring 24 is fixedly connected to the outer wall of the L-shaped card plate 22 on both sides and fixedly connected to the shell 5. A buffer mechanism 4 is provided at the bottom end of the shell 5, and the buffer mechanism 4 includes a fixed bar 25, a connecting rod 26, a shock-absorbing spring 27, an upper concave block 31, a lower concave block 32, a buffer rod 34 and a buffer plate 36. The fixed bar 25 is fixedly connected to both sides of the shell 5, and the connecting rod 26 is fixedly connected to the bottom surface of the fixed bar 25, the shock-absorbing spring 27 is movably connected to the connecting rod 26, the two upper concave blocks 31 are movably connected to the connecting rod 26 through the connecting block 28 on the top surface, and the connecting block 28 is fixedly connected to one end of the shock-absorbing spring 27, the lower concave block 32 is fixedly connected to both sides of the top surface of the buffer plate 36, and the buffer rod 34 is movably connected between the upper concave block 31 and the lower concave block 32 through the rotating blocks 35 at both ends.

[0029] Embodiment 1:

[0030] like Figure 3-Figure 4As shown, in this embodiment, in order to prevent the terminal device 1 from being broken during use, a notch 6 is provided at the front end of the top face of the shell 5, and a group of symmetrical positioning holes 9 are respectively provided on the side walls of the shell 5, a group of symmetrical first grooves 10 are provided on the bottom surface of the shell 5, and second sliding grooves 11 are respectively provided on both sides of the inner wall of the first groove 10, a fixing rod 12 is fixedly installed in the first groove 10, and a tension spring 13 is sleeved on the rod body of the fixing rod 12, and one end of the tension spring 13 is fixedly installed on the bottom end wall of the groove of the first groove 10, a group of symmetrical bottom blocks 15 are fixedly installed on the bottom surface of the installation shell 14, and the bottom blocks 15 A first connecting hole 16 is provided on the front end wall of the mounting shell 14, and the bottom block 15 is inserted and installed on the fixing rod 12 through the first connecting hole 16. The other end of the tension spring 13 is fixedly installed on the rear end wall of the bottom block 15. The two side walls of the bottom block 15 are also fixedly installed with first sliders 17, and the first sliders 17 are slidably installed in the second slide groove 11. A positioning plate 18 is fixedly installed on the rear end wall of the mounting shell 14, and spring grooves 19 are respectively provided on the two side walls of the positioning plate 18. One end of the return spring 20 is fixedly installed on the bottom of the spring groove 19, and the other end of the return spring 20 is fixedly installed with a clamp 21, and the clamp 21 is located in the positioning hole 9;

[0031] Before use, the terminal device 1 is first placed in the shell of the installation shell 14, and then the installation shell 14 is pushed into the outer shell 5. In the process of pushing the installation shell 14, the bottom block 15 installed on the bottom surface of the installation shell 14 will move toward the rear end through the first connecting hole 16 along the first groove 10 opened in the outer shell 5 by the fixing rod 12, and in the process of moving, the first sliders 17 installed on both sides of the bottom block 15 will slide in the second slide groove 11, and force the tension spring 13 set on the fixing rod 12 to retract. At the same time, the two positioning plates 18 installed at the rear end of the installation shell 14 are The side-protruding clamping head 21 will be squeezed during the process of the installation shell 14 entering into the outer shell 5, and the clamping head 21 will press against the two sides of the inner wall of the outer shell 5. After the installation shell 14 is completely entered into the outer shell 5, the clamping head 21 will lose the pressing force, and the reset spring 20 will extend and recover in the spring groove 19 opened on both sides of the positioning plate 18, and press the clamping head 21 into a group of symmetrical notches 6 opened on both sides of the outer shell 5 at the rear end, so as to restrict the installation shell 14 in the outer shell 5, and use the outer shell 5 to protect the terminal device 1 in the installation shell 14 to prevent the terminal device 1 from being directly damaged.

[0032] Embodiment 2:

[0033] like Figure 6-Figure 7As shown, in this embodiment, in order to cooperate with the use of the anti-fall mechanism 2 and play a role in buffering and shock absorbing, the fixing bar 25 is fixedly installed on the side walls of the housing 5, and the bottom surface of the fixing bar 25 is provided with a second groove 37, and the inner wall of the second groove 37 is provided with T-shaped sliding grooves 38 on both sides, the connecting rod 26 is fixedly installed in the second groove 37, and the rod body of the connecting rod 26 is sleeved with a shock absorbing spring 27, and the two ends of the shock absorbing spring 27 are respectively fixedly installed with connecting blocks 28, and the side wall of the connecting block 28 is provided with a second connecting hole 29, and the connecting block 28 is inserted and installed through the second connecting hole 29. On the connecting rod 26, T-shaped sliders 30 are fixedly installed on the side walls of the connecting block 28, and the T-shaped sliders 30 are slidably installed in the T-shaped slide grooves 38. An upper concave block 31 is fixedly installed on the bottom surface of the connecting block 28, and a group of symmetrical lower concave blocks 32 are fixedly installed on both sides of the top surface of the buffer plate 36. Rotation holes 33 are respectively opened on both sides of the inner walls of the recesses of the upper concave block 31 and the lower concave block 32. The buffer rod 34 is located between the recesses of the upper concave block 31 and the lower concave block 32, and rotation blocks 35 are fixedly installed on the side walls of the upper and lower ends of the buffer rod 34, and the rotation blocks 35 are inserted and installed in the rotation holes 33.

[0034] When the terminal device 1 is installed in the housing 5 and the entire device falls flat on the ground, a large shock impact force will be generated at the moment when the housing 5 collides with the ground. At this time, the buffer plate 36 will be first subjected to the impact force and force the angle between the symmetrical buffer rods 34 to increase. The rotating blocks 35 installed at both ends of the buffer rods 34 will rotate in the rotating holes 33 opened on the upper concave blocks 31 and the lower concave blocks 32. At the same time, the buffer rods 34 will be tilted and will push the symmetrical upper concave blocks 31 to move in the opposite direction on the bottom surface of the fixing bar 25. During the movement of the fixing bar 25, the connecting block 28 installed on the top surface will move along the connecting rod 26 in the second groove 37 through the second connecting hole 29, and the T-shaped sliders 30 installed on both sides of the connecting block 28 will slide in the T-shaped slide grooves 38, and the shock-absorbing springs 27 mounted on the connecting rod 26 will perform a stretching operation to both ends at this time, so as to buffer and offset the impact force exerted on the buffer plate 36 through a series of changes made between the above-mentioned components after being subjected to the impact force, thereby preventing the impact force from being transmitted to the terminal device 1 in the housing 5.

[0035] Embodiment three:

[0036] like Figure 5As shown, in this embodiment, in order to ensure that the card and the terminal device 1 are in continuous contact and to facilitate the user to free up the other hand to do other work, an insertion port 7 is further provided on the side wall of the housing 5, and first slide grooves 8 are respectively provided on both sides of the bottom surface of the slot of the insertion port 7, two L-shaped card plates 22 are respectively located in the insertion port 7, and second sliders 23 are respectively fixedly installed on both sides of the bottom surface of the L-shaped card plate 22, and the second slider 23 is slidably installed in the first slide groove 8, and a group of symmetrical compression springs 24 are fixedly installed between the outer side wall of the L-shaped card plate 22 and the inner side wall of the slot of the insertion port 7;

[0037] When the card is read through the terminal device 1, the card is inserted into the insertion port 7. At this time, the symmetrical L-shaped card plate 22 will force the compression spring 24 to retract after being squeezed, and the second slider 23 installed on the bottom surface of the L-shaped card plate 22 will slide in the first slide groove 8. The two L-shaped card plates 22 move in opposite directions until the card is completely inserted into the insertion port 7 and fits in the card reading area on the terminal device 1. Due to the reverse elastic force of the compression spring 24, the card will be clamped and fixed between the L-shaped card plates 22 to prevent the card from falling off. The user can hold the entire device with one hand.

[0038] The above descriptions are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, various improvements may be made to the present invention and parts thereof may be replaced by equivalents, or some technical features thereof may be replaced by equivalents without departing from the scope of the present invention. All that is within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A handheld mobile marketing terminal, comprising a terminal device (1), characterized in that: The terminal device (1) is provided with an anti-fall mechanism (2) on the outside, the anti-fall mechanism (2) comprising a housing (5), a fixing rod (12), a tension spring (13), a mounting housing (14), a first slider (17), a positioning plate (18), a reset spring (20) and a clamp (21), the fixing rod (12) being fixedly connected to both sides of the bottom surface inside the housing (5), the tension spring (13) being movably connected to the fixing rod (12), and the mounting housing (14) being movably connected to the fixing rod (12) via a bottom block (15) symmetrical to the bottom surface. , and the bottom block (15) is fixedly connected to the tension spring (13), the bottom block (15) is movably connected to the housing (5) through first sliders (17) on both sides, the positioning plate (18) is fixedly connected to the rear end of the mounting housing (14), and the return spring (20) is fixedly connected to the two sides of the positioning plate (18), the clamping head (21) is fixedly connected to the front end of the return spring (20), and a fixing mechanism (3) is provided in the side wall of the housing (5), the fixing mechanism (3) includes an L-shaped clamping plate (22) and a compression spring (24), The L-shaped card plate (22) is movably connected to the housing (5) via second sliders (23) on both sides of the bottom surface, and the compression spring (24) is fixedly connected to both sides of the outer wall of the L-shaped card plate (22) and is fixedly connected to the housing (5). A buffer mechanism (4) is provided at the bottom end of the housing (5), and the buffer mechanism (4) comprises a fixing bar (25), a connecting rod (26), a shock absorbing spring (27), an upper concave block (31), a lower concave block (32), a buffer rod (34) and a buffer plate (36). The fixing bar (25) is fixedly connected to both sides of the housing (5). side, and the connecting rod (26) is fixedly connected to the bottom surface of the fixing bar (25), the shock absorbing spring (27) is movably connected to the connecting rod (26), the two upper concave blocks (31) are movably connected to the connecting rod (26) through the connecting block (28) on the top surface, and the connecting block (28) is fixedly connected to one end of the shock absorbing spring (27), the lower concave block (32) is fixedly connected to both sides of the top surface of the buffer plate (36), and the buffer rod (34) is movably connected between the upper concave block (31) and the lower concave block (32) through the rotating blocks (35) at both ends; An insertion opening (7) is also provided on the side wall of the housing (5), and first sliding grooves (8) are respectively provided on both sides of the bottom surface of the groove of the insertion opening (7); The two L-shaped card plates (22) are respectively located in the insertion opening (7), and second sliders (23) are respectively fixedly installed on both sides of the bottom surface of the L-shaped card plate (22), and the second slider (23) is slidably installed in the first sliding groove (8), and a group of symmetrical compression springs (24) are fixedly installed between the outer side wall of the L-shaped card plate (22) and the inner side wall of the groove of the insertion opening (7).

2. A handheld mobile marketing terminal according to claim 1, characterized in that: A notch (6) is provided at the front end of the top surface of the shell (5), and a group of symmetrical positioning holes (9) are respectively provided on the side walls of the shell (5). A group of symmetrical first grooves (10) are provided on the bottom surface of the shell interior of the shell (5), and second sliding grooves (11) are respectively provided on both sides of the inner wall of the first groove (10).

3. A handheld mobile marketing terminal according to claim 2, characterized in that: The fixing rod (12) is fixedly mounted in the first groove (10), and a tension spring (13) is sleeved on the rod body of the fixing rod (12), one end of the tension spring (13) is fixedly mounted on the bottom end wall of the groove in the first groove (10), a group of symmetrical bottom blocks (15) are fixedly mounted on the bottom surface of the mounting shell (14), and a first connecting hole (16) is formed on the front end wall of the bottom block (15), and the bottom block (15) is inserted and mounted on the fixing rod (12) through the first connecting hole (16).

4. A handheld mobile marketing terminal according to claim 3, characterized in that: The other end of the tension spring (13) is fixedly mounted on the rear end wall of the bottom block (15), and first sliders (17) are fixedly mounted on both side walls of the bottom block (15), respectively, and the first sliders (17) are slidably mounted in the second slide groove (11).

5. A handheld mobile marketing terminal according to claim 4, characterized in that: A positioning plate (18) is fixedly mounted on the rear end wall of the mounting shell (14), and spring grooves (19) are respectively provided on the side walls on both sides of the positioning plate (18). One end of the return spring (20) is fixedly mounted on the bottom of the spring groove (19), and a clamp (21) is fixedly mounted on the other end of the return spring (20), and the clamp (21) is located in the positioning hole (9).

6. A handheld mobile marketing terminal according to claim 5, characterized in that: The fixing strip (25) is fixedly mounted on the side walls of the housing (5), and a second groove (37) is provided on the bottom surface of the fixing strip (25). T-shaped sliding grooves (38) are provided on both sides of the inner wall of the second groove (37).

7. A handheld mobile marketing terminal according to claim 6, characterized in that: The connecting rod (26) is fixedly mounted in the second groove (37), and a shock absorbing spring (27) is sleeved on the rod body of the connecting rod (26), and connecting blocks (28) are fixedly mounted on both ends of the shock absorbing spring (27), and a second connecting hole (29) is formed on the side wall of the connecting block (28), and the connecting block (28) is inserted and mounted on the connecting rod (26) through the second connecting hole (29), and T-shaped sliding blocks (30) are fixedly mounted on the side walls of both sides of the connecting block (28), and the T-shaped sliding blocks (30) are slidably mounted in the T-shaped sliding grooves (38).

8. The handheld mobile marketing terminal according to claim 7, characterized in that: An upper concave block (31) is fixedly mounted on the bottom surface of the connecting block (28), and a group of symmetrical lower concave blocks (32) are fixedly mounted on both sides of the top surface of the buffer plate (36), and rotation holes (33) are respectively opened on both sides of the inner walls of the recesses of the upper concave block (31) and the lower concave block (32), and the buffer rod (34) is located between the recesses of the upper concave block (31) and the lower concave block (32), and rotation blocks (35) are respectively fixedly mounted on the side walls of the upper and lower ends of the buffer rod (34), and the rotation blocks (35) are inserted and installed in the rotation holes (33).

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