CN109325376B - PDA with rotatable scanning head - Google Patents

Abstract

The invention relates to a PDA with a scanning head that can rotate, which includes a rear shell, a scanning head, a scanning head rear fixing seat, a scanning head front frame and a rotating mechanism; the scanning head, the scanning head rear fixing seat and the scanning head front frame are assembled together A scan head assembly is formed; the scan head assembly is located in the second cavity of the back shell, wherein the convex column of the front frame of the scan head is inserted into the concave hole of the second cavity of the back shell, and the other side of the front frame of the scan head is in contact with the rotation mechanism Connected, the rotating mechanism is fixed in the second cavity of the rear shell. Use your hand to insert and rotate the scan head assembly through the second window of the rear shell. The scan head assembly is between the rotating mechanism, the convex column of the front frame of the scan head and the rear shell. Under the joint action of the concave hole in the second cavity, it can rotate within a certain angle. The PDA with a rotatable scanning head of the present invention has a simple and reasonable structure and is easy to operate. During use, the up and down scanning angles of the scanning head can be adjusted according to different scenarios to collect data.

Description

PDA with rotating scan head

【Technical field】

The present invention relates to electronic products, in particular to PDA products, and in particular to PDA products with a scanning head.

【Background technique】

Existing technology PDA products are more and more widely used. PDA is the abbreviation of "Personal Digital Assistant" in English, which literally means "personal digital assistant". Some are called "handheld devices", also known as "handheld computers"; according to use Classification, divided into industrial-grade PDA and consumer PDA. Industrial-grade PDA is mainly used in the industrial field, including barcode scanners, RFID readers and POS machines; consumer PDA includes smart phones, tablet computers and handheld game consoles. RFID in the present invention is the abbreviation of English Radio Frequency Identification, which means "radio frequency identification" in Chinese; POS is the abbreviation of English Pointofsales, which means "point of sale" in Chinese, and the full name is "point of sale information management system".

Referring to Figure 18, the prior art PDA product with a scan head includes a back case 10', a bracket 15' fixed in the back case 10', a scan head 21' fixed on the bracket 15', and a front window of the back case 10'. The transparent sheet 19' covered by 101'; because the scanning head 21' of the prior art PDA product is fixed on the bracket 15' in the rear case 10', the scanning head 21' cannot rotate and can only have a scanning area at one angle ( (dotted line range in Figure 18), data can only be collected within the scanning area at this angle. It is difficult to collect data outside the scanning area at this angle, which limits the use range of PDA products.

[Content of the invention]

The technical problem to be solved by the present invention is to avoid the shortcomings of the above-mentioned prior art and provide a PDA with a rotating scanning head. The structure is simple and reasonable, and it is easy to operate. During use, the up and down scanning angle of the scanning head can be adjusted according to different scenarios. Carry out data collection.

The technical solution adopted by the present invention to solve the technical problem is:

A PDA with a rotatable scan head is provided, including a rear housing and a scan head; the PDA with a rotatable scan head also includes a rear fixing base of the scan head, a front frame of the scan head and a rotating mechanism; the front frame of the scan head runs from front to back A first window for scanning by the scanning head, a first cavity for accommodating the scanning head, and a rear opening for access when the scanning head is installed are provided in sequence. One side of the front frame of the scanning head is provided with a cylindrical convex column. , the scanning head, the scanning head rear fixing seat and the scanning head front frame are assembled together to form a scanning head assembly, wherein the scanning head is located in the first cavity of the scanning head front frame, and the scanning head is rear fixed The seat is fixed at the rear opening of the front frame of the scan head; the front part of the back shell is provided with a second cavity for accommodating the scan head assembly and the rotating mechanism, and the front end of the back shell is provided with the second cavity A second window is connected, and a side wall of the second cavity of the back shell is provided with a concave hole that matches the convex column of the front frame of the scan head; the scan head assembly is located on the back shell. In the second cavity, the protruding pillars of the front frame of the scanning head are inserted into the concave holes of the second cavity of the rear shell, and the other side of the front frame of the scanning head is connected to the rotating mechanism, so The rotating mechanism is fixed in the second cavity of the back shell. The hand is inserted through the second window of the back shell and rotates the front frame of the scan head of the scan head assembly. The scan head assembly is in the second cavity of the back shell. The rotation mechanism, the convex column of the front frame of the scanning head, and the concave hole of the second cavity of the rear shell work together to rotate within a certain angle.

The certain angle is greater than 0 degrees and less than 90 degrees; for example, the certain angle is greater than 0 degrees and less than 30 degrees.

The scan head assembly further includes a transparent sheet sealingly covering the first window of the front frame of the scan head.

The front side of the front frame of the scanning head is provided with a gear-like structure for manual rotation.

The rotating mechanism includes a rotating shaft, a rotating shaft lock and a rotating shaft bracket; the rear part of the rotating shaft is a spherical rotating part, and the front part of the rotating shaft is connected to the other side of the front frame of the scanning head. The connecting part; the front part of the rotating shaft lock is provided with a groove that matches the rotating part of the rotating shaft; the front part of the rotating shaft bracket is arranged at the rear part of the rotating shaft lock, and the rotating shaft The rear part of the shaft bracket is fixed in the second cavity of the rear shell, and the rotating part of the rotating shaft is located in the groove of the rotating shaft lock, so that the rotating shaft can lock relative to the rotating shaft. Rotate, and the connecting portion of the rotation shaft is movably connected to the other side of the front frame of the scan head.

The bottom of the groove of the rotating shaft lock is also provided with a soft sponge.

The front part of the rotating shaft bracket is provided with external threads, and the rear part of the rotating shaft lock is provided with internal threads that match the external threads. With the help of the external threads and internal threads, the front part of the rotating shaft bracket is Fixed at the rear of the rotating shaft lock.

The cross-sectional shape of the connecting part of the rotating shaft is an "I" shape, including a first upright part in the middle and first notches on both sides of the first upright part; correspondingly, the other side of the front frame of the scanning head faces each other. A first convex block and a second convex block are provided. There is a space between the first convex block and the second convex block to accommodate the front part of the rotating shaft. The first convex block faces the second convex block. A first inserting post is provided on the side, and a second inserting post is provided on the side of the second protruding block facing the first protruding block. There is a space between the first inserting post and the second inserting post for accommodating the front of the rotating shaft. The gap between the first upright part of the part; the connecting part of the rotating shaft is located in the space between the first bump and the second bump on the other side of the front frame of the scanning head, wherein the connecting part of the rotating shaft The first upright portion is inserted into the gap between the first inserting post and the second inserting post on the other side of the front frame of the scanning head, and the first inserting post and the second inserting post on the other side of the front frame of the scanning head. The columns are respectively inserted into the first gaps on both sides of the first upright portion of the connecting portion of the rotating shaft, so that the connecting portion of the rotating shaft is movably connected to the other side of the front frame of the scan head.

A sealing cover plate is provided on the second cavity of the back shell, and the sealing cover plate covers the scanning head assembly and the rotating mechanism located in the second cavity of the back shell.

Compared with the prior art, the beneficial effects of the PDA with a rotatable scanning head of the present invention are:

1. The present invention specifically arranges the scan head in the front frame of the scan head to form a scan head assembly, and provides a rotating mechanism. The scan head assembly and the rotating mechanism are arranged together in the second cavity of the rear shell, so that they can be scanned by hand. Extend the front frame of the scan head assembly from the second window of the rear case and rotate it. Under the joint action of the rotating mechanism, the convex column of the front frame of the scan head and the concave hole of the second cavity of the rear case, the scan head assembly It can rotate within a certain angle; when using the PDA product of the present invention, even if the position to be scanned is in a relatively small space, data collection can be carried out by adjusting the up and down scanning angle of the scanning head of the scanning head assembly, and the operation is very convenient;

2. The present invention specially designs the rotating mechanism to be similar to a universal wheel structure, that is, the cooperation between the rotating part of the rotating shaft and the groove of the rotating shaft lock is similar to the structure of a universal wheel. Such a rotating mechanism has a simple structure and is easy to rotate. flexible;

3. The present invention adopts a special structure to flexibly connect the rotating mechanism with the other side of the front frame of the scanning head, making it easy to disassemble.

To sum up, the PDA with a rotatable scanning head of the present invention has a simple and reasonable structure and is easy to operate. During use, the up and down scanning angles of the scanning head can be adjusted according to different scenarios for data collection.

[Picture description]

Figure 1 is a front projection schematic view of the PDA with a rotatable scan head according to the present invention, showing the rear housing, the scan head assembly and the rotating mechanism assembled together;

Figure 2 is an isometric projection schematic diagram of the rear housing, scanning head assembly and rotating mechanism assembled together;

Figure 3 is one of the front projection side cross-sectional schematic diagrams of the back shell, the scan head assembly and the rotating mechanism assembled together. The scan head in the figure is at an angle of 0 degrees. The dotted line A indicates that the scan head is at the 0 degree angle. Scanning area at angle time;

Figure 4 is the second schematic diagram of the front projection side view of the back shell, the scan head assembly and the rotating mechanism assembled together. The scan head in the figure has been rotated at an angle of B, and the dotted line A' indicates that the scan head is at the angle of B. Scanning area at angle time;

Figure 5 is a schematic top view of the rear shell, the scan head assembly and the rotating mechanism assembled together;

Figure 6 is an exploded isometric projection diagram of the rear housing, scanning head assembly and rotating mechanism;

Figure 7 is one of the isometric projection schematic diagrams of the rear shell;

Figure 8 is the second schematic diagram of the axonometric projection of the rear shell;

Figure 9 is an isometric projection schematic diagram of the scanning head assembly and the rotating mechanism assembled together;

Figure 10 is an isometric projection schematic diagram of the scan head assembly;

Figure 11 is a schematic isometric projection of the scan head assembly from another direction;

Figure 12 is a schematic isometric projection of the scan head assembly after decomposition;

Figure 13 is an isometric projection schematic diagram of the rotating mechanism;

Figure 14 is an axonometric projection schematic diagram of the rotating mechanism in another direction;

Figure 15 is an exploded axonometric projection diagram of the rotating mechanism;

Figure 16 is an isometric projection schematic diagram of an embodiment in which the rotation shaft lock and the rotation shaft bracket of the rotation mechanism are assembled together;

Figure 17 is an isometric projection schematic diagram of another embodiment in which the rotation shaft lock and the rotation shaft bracket of the rotation mechanism are assembled together;

Figure 18 is a schematic diagram of an isometric projection of the rear shell and the scan head of a PDA product with a scan head in the prior art after decomposition. The dotted line indicates the scanning area of the scan head.

【Detailed ways】

The present invention will be further described in detail below with reference to the accompanying drawings.

Referring to Figures 1 to 17, the present invention relates to a PDA with a rotatable scan head, including a rear housing 10 and a scan head 21; the PDA with a rotatable scan head also includes a rear scan head fixing base 22 and a scan head front frame 23. and the rotating mechanism 30; the front frame 23 of the scan head is provided with a first window for the scan head 21 to scan, a first cavity 231 for accommodating the scan head 21, and a first window for the scan head 21 to enter and exit in order from front to back. The rear opening 232 is provided with a cylindrical protruding column 239 on one side of the scan head front frame 23. The scan head 21, the scan head rear fixing seat 22 and the scan head front frame 23 are assembled together to form the scan head assembly 20. , wherein the scan head 21 is located in the first cavity 231 of the scan head front frame 23, and the scan head rear fixing seat 22 is fixed at the rear opening 232 of the scan head front frame 23; the rear shell The front of 10 is provided with a second cavity 11 for accommodating the scanning head assembly 20 and the rotating mechanism 30. The front end of the rear shell 10 is provided with a second window 111 connected with the second cavity 11. The rear shell 10 A side wall of the second cavity 11 of the scanning head 10 is provided with a recessed hole 119 that matches the protruding column 239 of the front frame 23 of the scanning head; the scanning head assembly 20 is located in the second cavity of the rear housing 10 11, wherein the protruding column 239 of the scanning head front frame 23 is inserted into the recessed hole 119 of the second cavity 11 of the rear housing 10, and the other side of the scanning head front frame 23 is in contact with the rotating mechanism 30 Connected, the rotating mechanism 30 is fixed in the second cavity 11 of the rear housing 10, and the hand is inserted through the second window 111 of the rear housing 10 and rotates the front of the scanning head of the scanning head assembly 20. Frame 23, the scan head assembly 20 can rotate within a certain angle under the joint action of the rotation mechanism 30, the convex column 239 of the front frame 23 of the scan head, and the concave hole 119 of the second cavity 11 of the rear shell 10. .

Referring to Figures 7 and 8, in order to ensure the sealing performance of the second cavity 11 of the back shell 10, the recessed hole 119 of the second cavity 11 of the back shell 10 is not made into a through hole. The back shell 10 generally adopts It is made of engineering plastic, and for the convenience of mold opening, the lower part of the side wall of the second cavity 11 of the rear shell 10 is designed as a first convex part 118 with a semicircular notch, and an additional lower part is made with a semicircular notch. The first protrusion 117 has a semicircular notch, and the first protrusion 117 is fixed above the first protrusion 118 on one side wall of the second cavity 11 of the rear shell 10, so that the semicircular notch of the first protrusion 118 The concave hole 119 is formed after being pieced together with the semicircular notch of the first protrusion 117 .

Referring to Figures 3 and 4, the certain angle B is greater than 0 degrees and less than 90 degrees; for example, the certain angle B is greater than 0 degrees and less than 30 degrees, for example, the certain angle B is 25 degrees. The scanning head 21 in Figure 3 is at an angle of 0 degrees. The dotted line A represents the scanning area of the scanning head at the angle of 0 degrees. The scanning head in the figure has rotated at an angle of B. The dotted line A' represents the scanning area of the scanning head at the angle of B. Scanning area at angle.

Referring to FIGS. 9 , 11 and 12 , the scan head assembly 20 further includes a transparent sheet 24 that seals and covers the first window of the scan head front frame 23 .

Referring to Figures 5 and 9 to 12, for the convenience of rotation, a gear-like structure 233 for manual rotation is provided on the front side of the front frame 23 of the scanning head.

Referring to Figures 2 to 4, 9 and 12 to 16, the rotating mechanism 30 includes a rotating shaft 31, a rotating shaft lock 32 and a rotating shaft bracket 33; the rear part of the rotating shaft 31 is a spherical rotating part 311. The front part of the rotating shaft 31 is a connecting part 312 connected to the other side of the scanning head front frame 23; the front part of the rotating shaft lock 32 is provided with a rotating part 311 connected to the rotating shaft 31. Adapting groove 321; the front part of the rotating shaft bracket 33 is arranged at the rear part of the rotating shaft lock 32, and the rear part 338 of the rotating shaft bracket 33 is fixed in the second cavity 11 of the rear shell 10 Inside, the rotating portion 311 of the rotating shaft 31 is located in the groove 321 of the rotating shaft lock 32, so that the rotating shaft 31 can rotate relative to the rotating shaft lock 32. The connection of the rotating shaft 31 The portion 312 is movably connected to the other side of the scan head front frame 23, so that the scan head assembly 20 can rotate within a certain angle. The cooperation between the rotating portion 311 of the rotating shaft 31 and the groove 321 of the rotating shaft lock 32 is somewhat similar to the structure of a universal wheel.

Referring to Figure 17, the bottom of the groove 321 of the rotating shaft lock 32 is also provided with a soft sponge 35. The sponge 35 can buffer the rotating part 311 of the rotating shaft 31 from the rotating shaft lock 32. The function of rotation in groove 321.

Referring to Figures 13 to 16, the front part of the rotating shaft bracket 33 is provided with external threads 339, and the rear part of the rotating shaft lock 32 is provided with internal threads 329 that match the external threads 339. With the help of the external threads 339, Threads 339 and internal threads 329, the front part of the rotating shaft bracket 33 is fixed on the rear part of the rotating shaft lock 32.

Referring to Figures 2 to 4 and 15, the rear part 338 of the rotating shaft bracket 33 is designed as a flat structure with a through hole on it, so that screws can be passed through the through hole to easily secure the rear part of the rotating shaft bracket 33. 338 is fixed in the second cavity 11 of the rear case 10 .

Referring to Figures 9, 12 and 14, in order to facilitate disassembly, the cross-sectional shape of the connecting portion 312 of the rotating shaft 31 is an "I" shape, including a first upright portion 3121 in the middle and two sides on both sides of the first upright portion 3121. first notch 3122; correspondingly, the other side of the front frame 23 of the scan head is provided with a first bump 238 and a second bump 237 facing each other, and there is a gap between the first bump 238 and the second bump 237. The space 236 at the front of the rotating shaft 31 is accommodated. A first insertion post 2389 is provided on the side of the first protrusion 238 facing the second protrusion 237. The second protrusion 237 faces the first protrusion. A second inserting post is provided on the side of the block 238. Between the first inserting post 2389 and the second inserting post is a gap 235 for accommodating the first upright portion 3121 of the front part of the rotating shaft 31; The connecting portion 312 is located in the space 236 between the first bump 238 and the second bump 237 on the other side of the front frame 23 of the scanning head, in which the first upright portion 3121 of the connecting portion 312 of the rotating shaft 31 is inserted. In the gap 235 between the first inserting post 2389 and the second inserting post on the other side of the scanning head front frame 23 , and the first inserting post 2389 and the second inserting post on the other side of the scanning head front frame 23 Insert into the first notches 3122 on both sides of the first upright portion 3121 of the connecting portion 312 of the rotating shaft 31 respectively, so that the connecting portion 312 of the rotating shaft 31 is movably connected to the other side of the scan head front frame 23 .

Referring to Figures 1, 3 and 4, the second cavity 11 of the rear shell 10 is provided with a sealing cover 99, which seals the scanning head located in the second cavity 11 of the rear shell 10. The assembly 20 and the rotating mechanism 30 are covered.

The PDA with a rotating scan head of the present invention only shows and describes in detail the relationship between the back shell, the scan head assembly and the rotating mechanism. The components of other PDA products are all existing technologies and will not be described in detail here.

The above-mentioned embodiments only express the preferred embodiments of the present invention, and their descriptions are relatively specific and detailed, but they cannot be understood as limiting the patent scope of the present invention; it should be noted that, for those of ordinary skill in the art, , without departing from the concept of the present invention, several deformations and improvements can be made, which all belong to the protection scope of the present invention; therefore, all equivalent transformations and modifications made to the scope of the claims of the present invention shall fall within the scope of the present invention. Scope of Invention Claims.

Claims (1)

1. A PDA with a rotating scanning head, including a rear housing (10) and a scanning head (21); characterized by: It also includes a scan head rear fixing base (22), a scan head front frame (23) and a rotating mechanism (30); the scan head front frame (23) is provided with holes for scanning by the scan head (21) from front to back. A first window, a first cavity (231) for accommodating the scan head (21) and a rear opening (232) for the scan head (21) to enter and exit when installed. One side of the front frame (23) of the scan head is provided with There is a cylindrical boss (239), and the scanning head (21), the scanning head rear fixing seat (22) and the scanning head front frame (23) are assembled together to form the scanning head assembly (20), wherein the scanning head (21) is located in the first cavity (231) of the scan head front frame (23), and the scan head rear fixing seat (22) is fixed to the rear opening (232) of the scan head front frame (23). at; the front part of the back shell (10) is provided with a second cavity (11) that accommodates the scanning head assembly (20) and the rotating mechanism (30), and the front end of the back shell (10) is provided with a third A second window (111) connected with the two cavities (11). A side wall of the second cavity (11) of the rear shell (10) is provided with a protruding column connected to the front frame (23) of the scanning head. (239) Matching concave holes (119); the scan head assembly (20) is located in the second cavity (11) of the rear housing (10), where the front frame (23) of the scan head The protruding column (239) is inserted into the recessed hole (119) of the second cavity (11) of the rear housing (10), and the other side of the front frame (23) of the scanning head is in contact with the rotating mechanism (30) Connected, the rotating mechanism (30) is fixed in the second cavity (11) of the back shell (10), and the hand can be inserted through the second window (111) of the back shell (10) and rotated. The scanning head front frame (23) of the scanning head assembly (20), the scanning head assembly (20) is connected between the rotating mechanism (30), the convex column (239) of the scanning head front frame (23) and the rear shell. (10) can rotate within a certain angle under the joint action of the concave hole (119) of the second cavity (11); The certain angle is greater than 0 degrees and less than 30 degrees; The scan head assembly (20) also includes a transparent sheet (24) that sealingly covers the first window of the scan head front frame (23); The front side of the front frame (23) of the scanning head is provided with a gear-like structure (233) for manual rotation; The rotating mechanism (30) includes a rotating shaft (31), a rotating shaft lock (32) and a rotating shaft bracket (33); the rear part of the rotating shaft (31) is a spherical rotating part (311). The front part of the rotating shaft (31) is a connecting part (312) connected to the other side of the scanning head front frame (23); the front part of the rotating shaft lock (32) is provided with the connecting part (312) connected to the rotating shaft (23). The groove (321) adapted to the rotating part (311) of 31); the front part of the rotating shaft bracket (33) is set at the rear of the rotating shaft lock (32), and the rotating shaft bracket (33) The rear part is fixed in the second cavity (11) of the rear housing (10), and the rotating part (311) of the rotating shaft (31) is located in the groove (321) of the rotating shaft lock (32). within, so that the rotating shaft (31) can rotate relative to the rotating shaft lock (32), and the connecting portion (312) of the rotating shaft (31) and the other part of the scanning head front frame (23) Side movable connection; The bottom of the groove (321) of the rotating shaft lock (32) is also provided with a soft sponge (35); The front part of the rotating shaft bracket (33) is provided with an external thread (339), and the rear part of the rotating shaft lock (32) is provided with an internal thread (329) that matches the external thread (339). The external thread (339) and the internal thread (329), the front part of the rotating shaft bracket (33) is fixed on the rear part of the rotating shaft lock (32); The cross-sectional shape of the connecting portion (312) of the rotating shaft (31) is an "I" shape, including a first upright portion (3121) in the middle and first notches (3122) on both sides of the first upright portion (3121). ; Correspondingly, the other side of the front frame (23) of the scan head is provided with a first bump (238) and a second bump (237) facing each other. The first bump (238) and the second bump Between (237) is a space (236) for accommodating the front part of the rotation shaft (31), and a first insertion post (236) is provided on the side of the first protrusion (238) facing the second protrusion (237). 2389), the second protruding block (237) is provided with a second inserting post on the side facing the first protruding block (238), and a receiving space is provided between the first inserting post (2389) and the second inserting post. The gap (235) of the first upright part (3121) in the front part of the rotating shaft (31); the connecting part (312) of the rotating shaft (31) is located on the third side of the other side of the front frame (23) of the scanning head. In the space (236) between a bump (238) and a second bump (237), the first upright portion (3121) of the connecting portion (312) of the rotation shaft (31) is inserted into the scanning head In the gap (235) between the first inserting post (2389) and the second inserting post on the other side of the front frame (23), and the first inserting post (2389) on the other side of the scanning head front frame (23) ) and the second plugs are respectively inserted into the first gaps (3122) on both sides of the first upright portion (3121) of the connecting portion (312) of the rotating shaft (31), so that the connecting portion of the rotating shaft (31) (312) is movably connected to the other side of the scanning head front frame (23); The second cavity (11) of the back shell (10) is provided with a sealing cover plate (99), and the sealing cover plate (99) will be located on the second cavity (11) of the back shell (10). The scan head assembly (20) and the rotating mechanism (30) are covered.