CN107945483B - Handheld client information inquiry terminal with checking function - Google Patents
Handheld client information inquiry terminal with checking function Download PDFInfo
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- CN107945483B CN107945483B CN201711284530.3A CN201711284530A CN107945483B CN 107945483 B CN107945483 B CN 107945483B CN 201711284530 A CN201711284530 A CN 201711284530A CN 107945483 B CN107945483 B CN 107945483B
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- Computer Networks & Wireless Communication (AREA)
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Abstract
The invention discloses a handheld customer information inquiry terminal with a nuclear reading function, which comprises a protection seat, wherein a first groove is formed in the top of the protection seat, a terminal body is arranged in the first groove in a sliding manner, wedge-shaped blocks are symmetrically and fixedly arranged on two sides of the terminal body, locking modules for fixing the wedge-shaped blocks are arranged on the inner walls of the two sides of the first groove, each locking module comprises a through hole formed in the inner wall of the two sides of the first groove, a clamping rod is arranged in the through hole in a sliding manner, two ends of the clamping rod extend out of the through hole, one end, located in the first groove, of the clamping rod is in contact with the wedge-shaped block, and a first clamping block fixedly arranged on the clamping rod is arranged in the. The terminal body can be conveniently and quickly disassembled and assembled, people can conveniently overhaul the terminal body, impact force applied to the terminal body can be effectively buffered, and the service life of the terminal body is prolonged.
Description
Technical Field
The invention relates to the technical field of handheld client information inquiry terminals, in particular to a handheld client information inquiry terminal with a checking function.
Background
At present when a remote acquisition system is vigorously developed, electric readings of most of electricity consumers can be sent to a master station system through the acquisition system, and the working intensity of on-site meter reading of a meter reader is greatly reduced. However, the staff is still required to check the meter reading data on site periodically to ensure the accuracy of the collected data, namely check and read on site.
At present, user information needing on-site checking and reading in an electric power marketing system is guided into a handheld client information inquiry terminal by people, including house numbers, house names, addresses and the like, according to the addresses registered in the marketing system, a Google map and other navigation tools are used for guiding workers to go to the places needing on-site checking and reading, and after the workers arrive at the site, the data of the meter reading can be recorded into a mobile platform.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a handheld client information inquiry terminal with a checking function.
In order to achieve the purpose, the invention adopts the following technical scheme:
a handheld client information inquiry terminal with a nuclear copy function comprises a protection seat, wherein a first groove is formed in the top of the protection seat, a terminal body is arranged in the first groove in a sliding mode, wedge blocks are symmetrically and fixedly arranged on two sides of the terminal body, locking modules for fixing the wedge blocks are arranged on the inner walls of the two sides of the first groove, each locking module comprises a through hole formed in the inner wall of the corresponding side of the first groove, a clamping rod is arranged in the through hole in a sliding mode, the two ends of the clamping rod extend out of the through hole, one end, located in the first groove, of the clamping rod is in contact with the wedge block, a first clamping block fixedly sleeved on the clamping rod is arranged in the through hole in a sliding mode, a second clamping block fixedly installed in the through hole is arranged on one side, away from the terminal body, of the first clamping block, the second clamping block is sleeved on the clamping rod in a sliding mode, a first spring is sleeved on the clamping rod, and the, the bottom of terminal body is seted up and is located the draw-in groove of first recess, slidable mounting has the fixed block in the draw-in groove, outside the bottom side of fixed block extended to the draw-in groove, two connecting rods were installed in the bottom symmetry rotation of fixed block, be equipped with buffer module on the bottom side inner wall of first recess, buffer module is including seting up the spout on the bottom side inner wall of first recess, symmetrical slidable mounting has two sliders in the spout, outside the top of slider extended to the spout, the bottom of two connecting rods rotated respectively and is installed on two sliders.
Preferably, the locating grooves are symmetrically formed in the inner walls of the two sides of the through hole, the two sides of the clamping rod are symmetrically and rotatably provided with first balls, and the first balls are arranged in the locating grooves in a rolling mode.
Preferably, a transverse hole is formed in one side, close to the terminal body, of the second clamping block, the clamping rod is slidably mounted in the transverse hole, the two ends of the clamping rod extend to the outside of the transverse hole, and a protection pad is arranged on the periphery of the protection seat.
Preferably, the one end that the kelly is located first recess is rotated and is installed the second ball, second ball and wedge looks adaptation, and the kelly is kept away from the one end of second ball and is rotated perpendicularly and install the bull stick, and the bottom fixed mounting of bull stick has the handle that is located the kelly below, and the bilateral symmetry of protection seat is seted up and is located the card hole of two through-holes below, and the one end slidable mounting that the bull stick was kept away from to the handle is downthehole at the card.
Preferably, the inner wall of the clamping hole is fixedly provided with an anti-slip pad, the anti-slip pad is in contact with the handle, and the anti-slip pad is made of rubber.
Preferably, a sliding rod is fixedly mounted in the sliding groove, the two sliding blocks are sleeved on the sliding rod in a sliding mode, a second spring is sleeved on the sliding rod, and two ends of the second spring are welded to the two sliding blocks respectively.
Preferably, the square groove has all been seted up to one side that two sliders are close to each other, and the one end that the fixed block was kept away from to two connecting rods rotates respectively and installs in two square grooves.
Preferably, second grooves are symmetrically formed in the inner walls of the two sides of the sliding groove, ejector rods are slidably mounted in the second grooves, and one ends, close to each other, of the two ejector rods extend to the two second grooves respectively and are fixedly mounted on the two sliding blocks respectively.
Preferably, the third recess has all been seted up to the one end that two ejector pins kept away from each other, and slidable mounting has the push rod in the third recess, and the one end that two push rods kept away from each other extends to outside two third recesses respectively and fixed mounting respectively on the one side inner wall that two second recesses kept away from each other, and all welded the third spring on the one side inner wall that two third recesses are close to each other, and welded fastening between third spring and the push rod.
Preferably, the inner walls of the two sides of the second groove are symmetrically provided with limiting grooves, the two sides of the ejector rod are symmetrically and fixedly provided with limiting blocks, and the limiting blocks are connected with the limiting grooves in a sliding mode.
Compared with the prior art, the invention has the beneficial effects that:
in the invention, the handle is moved out of the clamping hole by rotating the rotating rod, the clamping rod is pulled by the handle to separate the clamping rod from the wedge block, at the moment, the terminal body moves to the outside of the first groove under the action of the buffer module, the terminal body can be easily taken out, when the terminal body is installed, the terminal body is only required to be clamped into the first groove, the terminal body is pressed, the wedge block is contacted with the second ball and pushes the clamping rod, the clamping rod moves to drive the first clamping block to move so as to compress the first spring, the first spring generates bounce, when the wedge block is separated from the second ball, the clamping rod resets so as to clamp the terminal body in the first groove under the bounce of the first spring, in the process, the fixed block is clamped into the clamping groove, the terminal body pushes the fixed block to move, the fixed block pushes the slide block through the connecting rod, and the two slide blocks move to the sides far away from each other, the second spring is stretched to generate a rebound force, the sliding block pushes the ejector rod again, so that the push rod moves towards the third groove, the third spring is compressed again by the push rod to generate the rebound force, the wedge block is clamped on the clamping rod under the action of the rebound force of the second spring and the third spring, the terminal body is stably fixed in the first groove, and similarly, the impact force on the terminal body can be effectively buffered under the action of the second spring and the third spring.
Drawings
Fig. 1 is a schematic cross-sectional structural diagram of a handheld client information query terminal with a meter reading function according to the present invention;
fig. 2 is a schematic cross-sectional structural diagram of a part a of a handheld client information query terminal with a copy checking function according to the present invention;
fig. 3 is a schematic cross-sectional structural diagram of a part B in a handheld client information query terminal with a copy checking function according to the present invention;
fig. 4 is a schematic cross-sectional structural diagram of a portion B1 in a handheld customer information query terminal with a carbon copy function according to the present invention;
fig. 5 is a schematic perspective view of a protection seat and a terminal body in a handheld client information query terminal with a function of checking and copying according to the present invention.
In the figure: the protection device comprises a protection seat 1, a first groove 2, a terminal body 3, a wedge-shaped block 4, a through hole 5, a clamping rod 6, a first clamping block 7, a second clamping block 8, a first spring 9, a clamping groove 10, a fixing block 11, a connecting rod 12, a sliding groove 13, a sliding block 14, a positioning groove 15, a first ball 16, a second ball 17, a rotating rod 18, a clamping hole 19, a handle 20, a sliding rod 21, a second spring 22, a second groove 23, a push rod 24, a third groove 25, a push rod 26, a third spring 27, a limiting groove 28, a limiting block 29 and a protection pad 30.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-5, a handheld client information query terminal with a nuclear copy function comprises a protection base 1, a first groove 2 is formed at the top of the protection base 1, a terminal body 3 is slidably mounted in the first groove 2, wedge blocks 4 are symmetrically and fixedly mounted on two sides of the terminal body 3, locking modules for fixing the wedge blocks 4 are respectively arranged on the inner walls of two sides of the first groove 2, each locking module comprises a through hole 5 formed on the inner wall of two sides of the first groove 2, a clamping rod 6 is slidably mounted in the through hole 5, two ends of the clamping rod 6 extend out of the through hole 5, one end of the clamping rod 6 located in the first groove 2 is in contact with the wedge block 4, a first clamping block 7 fixedly sleeved on the clamping rod 6 is slidably mounted in the through hole 5, a second clamping block 8 fixedly mounted in the through hole 5 is arranged on one side of the first clamping block 7 away from the terminal body 3, and the second clamping block 8 is slidably sleeved on the clamping rod 6, the clamping rod 6 is sleeved with a first spring 9, two ends of the first spring 9 are respectively welded on a first clamping block 7 and a second clamping block 8 which correspond to each other, the bottom of the terminal body 3 is provided with a clamping groove 10 which is positioned in the first groove 2, a fixing block 11 is arranged in the clamping groove 10 in a sliding manner, the bottom side of the fixing block 11 extends out of the clamping groove 10, the bottom of the fixing block 11 is symmetrically and rotatably provided with two connecting rods 12, the inner wall of the bottom side of the first groove 2 is provided with a buffer module which comprises a sliding groove 13 which is arranged on the inner wall of the bottom side of the first groove 2, two sliding blocks 14 are symmetrically and slidably arranged in the sliding groove 13, the top of each sliding block 14 extends out of the corresponding sliding groove 13, the bottom ends of the two connecting rods 12 are respectively and rotatably arranged on the two sliding blocks 14, the handle 20 is moved out of the clamping hole 19 by rotating the rotating rod 18, the clamping rod 6 is pulled by, the terminal body 3 can be easily taken out by moving towards the outside of the first groove 2, when the terminal body 3 is installed, the terminal body 3 is only required to be clamped into the first groove 2, the terminal body 3 is pressed, the wedge-shaped block 4 is in contact with the second ball 17 and pushes the clamping rod 6, the clamping rod 6 moves to drive the first clamping block 7 to move, so that the first spring 9 is compressed, the first spring 9 generates a rebound force, when the wedge-shaped block 4 is separated from the second ball 17, the clamping rod 6 is reset under the rebound force of the first spring 9 so that the terminal body 3 is clamped in the first groove 2, in the process, the fixing block 11 is clamped into the clamping groove 10, the fixing block 3 pushes the fixing block 11 to move, the fixing block 11 pushes the sliding blocks 14 through the connecting rods 12, the two sliding blocks 14 move towards the sides far away from each other, the second spring 22 is stretched and generates a rebound force, the sliding blocks 14 push the ejector rods 24 again, therefore, the push rod 26 moves into the third groove 25, the push rod 26 compresses the third spring 27 again, the third spring 27 generates a rebound force, the wedge-shaped block 4 is tightly clamped on the clamping rod 6 under the rebound force action of the second spring 22 and the third spring 26, the terminal body 3 is stably fixed in the first groove 2, and similarly, the impact force applied to the terminal body 3 can be effectively buffered under the action of the second spring 22 and the third spring 27.
In this embodiment, the inner walls of the two sides of the through hole 5 are symmetrically provided with positioning slots 15, the two sides of the clamping rod 6 are symmetrically and rotatably provided with first balls 16, the first balls 16 are roll-mounted in the positioning slots 15, one side of the second clamping block 8 close to the terminal body 3 is provided with transverse holes, the clamping rod 6 is slidably mounted in the transverse holes, and the two ends of the clamping rod 6 extend out of the transverse holes, the periphery of the protection seat 1 is provided with protection pads 30, one end of the clamping rod 6 located in the first groove 2 is rotatably provided with second balls 17, the second balls 17 are adapted to the wedge-shaped block 4, one end of the clamping rod 6 away from the second balls 17 is vertically and rotatably provided with a rotating rod 18, the bottom end of the rotating rod 18 is fixedly provided with a handle 20 located below the clamping rod 6, the two sides of the protection seat 1 are symmetrically provided with clamping holes 19 located below the two through holes 5, one end of the handle 20, the inner wall of the clamping hole 19 is fixedly provided with an anti-slip pad which is contacted with the handle 20, the anti-slip pad is made of rubber, a sliding rod 21 is fixedly arranged in the sliding groove 13, the two sliding blocks 14 are sleeved on the sliding rod 21 in a sliding manner, the sliding rod 21 is sleeved with a second spring 22, two ends of the second spring 22 are respectively welded on the two sliding blocks 14, one sides of the two sliding blocks 14, which are close to each other, are respectively provided with a square groove, one ends of the two connecting rods 12, which are far away from the fixing block 11, are respectively rotatably arranged in the two square grooves, the inner walls of two sides of the sliding groove 13 are symmetrically provided with second grooves 23, ejector rods 24 are arranged in the second grooves 23 in a sliding manner, one ends of the two ejector rods 24, which are close to each other, respectively extend out of the two second grooves 23 and are respectively fixedly arranged on the two sliding blocks 14, the ends of the two push rods 26 far away from each other extend to the outside of the two third grooves 25 respectively and are fixedly installed on the inner wall of one side of the two second grooves 23 far away from each other respectively, the inner wall of one side of the two third grooves 25 close to each other is welded with a third spring 27, the third spring 27 and the push rods 26 are welded and fixed, the inner walls of two sides of the second grooves 23 are symmetrically provided with limit grooves 28, the two sides of the ejector rod 24 are symmetrically and fixedly installed with limit blocks 29, the limit blocks 29 are connected with the limit grooves 28 in a sliding manner, the handle 20 is moved out of the clamping hole 19 by rotating the rotating rod 18, the clamping rod 6 is pulled by the handle 20 to separate the clamping rod 6 from the wedge-shaped block 4, at the moment, under the action of the buffer module, the terminal body 3 moves towards the outside of the first groove 2, namely, the terminal body 3 can be easily taken out, when the terminal body 3 is installed, the terminal body 3 only needs to, when the wedge-shaped block 4 is contacted with the second ball 17 and pushes the clamping rod 6 by pressing the terminal body 3, the clamping rod 6 moves to drive the first clamping block 7 to move, so as to compress the first spring 9 and enable the first spring 9 to generate a rebound force, when the wedge-shaped block 4 is separated from the second ball 17, under the rebound force of the first spring 9, the clamping rod 6 is reset to clamp the terminal body 3 in the first groove 2, in the process, the fixing block 11 is clamped in the clamping groove 10, the terminal body 3 pushes the fixing block 11 to move, the fixing block 11 pushes the sliding blocks 14 through the connecting rods 12, so that the two sliding blocks 14 move to the sides far away from each other, the second spring 22 is stretched and generates the rebound force, the sliding blocks 14 push the ejector rods 24 again, so as to enable the push rods 26 to move into the third grooves 25, the push rods 26 again compress the third springs 27, so as to enable the third springs 27 to generate the rebound force, under the rebound force of the second springs 22 and the third springs 26, the wedge-shaped block 4 is clamped on the clamping rod 6, so that the terminal body 3 is stably fixed in the first groove 2, and similarly, under the action of the second spring 22 and the third spring 27, the impact force on the terminal body 3 can be effectively buffered.
In the embodiment, firstly, the customer information to be checked and copied and the navigation data of the map of the jurisdiction in the marketing system are led into the terminal body 3, then the staff goes to the site according to the navigation information in the terminal body 3, after the site is reached, the terminal body 3 displays the customer asset number and the historical meter reading data according to the unit building, the staff correspondingly inputs the site meter number of the electric meter according to the electric meter asset number, marks the data with problems and uploads the data to the marketing system, in the actual use, when the terminal body 3 needs to be disassembled and assembled for maintenance, only the rotating rod 18 needs to be rotated, the handle 20 is moved out of the clamping hole 19, the clamping rod 6 is pulled by the handle 20 to separate the clamping rod 6 from the wedge-shaped block 4, at the moment, under the action of the buffer module, the terminal body 3 moves to the outside of the first groove 2, the terminal body 3 can be easily taken out, when the terminal body 3 is installed, only by clamping the terminal body 3 into the first groove 2 and pressing the terminal body 3, the wedge block 4 will contact with the second ball 17 and push the clamping rod 6, the clamping rod 6 will move to drive the first clamping block 7 to move, thereby compressing the first spring 9, making the first spring 9 generate a rebound force, when the wedge block 4 is separated from the second ball 17, under the rebound force of the first spring 9, the clamping rod 6 resets to clamp the terminal body 3 into the first groove 2, in this process, the fixing block 11 will be clamped into the clamping groove 10, the terminal body 3 will push the fixing block 11 to move, the fixing block 11 will push the sliding blocks 14 through the connecting rod 12, making the two sliding blocks 14 move to the side far away from each other, the second spring 22 will be stretched and generate a rebound force, the sliding blocks 14 will push the ejector rod 24 again, thereby making the push rod 26 move into the third groove 25, the push rod 26 will compress the third spring 27 again, making the third spring 27 generate a rebound force, under the bounce effect of second spring 22 and third spring 26, wedge 4 will be blocked tightly on kelly 6 to with stable the fixing in first recess 2 of terminal body 3, under the effect of second spring 22 and third spring 27, the impact that can effectual buffering terminal body 3 received like this, thereby protection terminal body 3.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (1)
1. The utility model provides a handheld customer information inquiry terminal with function is copied to nuclear, includes protection seat (1), its characterized in that, first recess (2) have been seted up at the top of protection seat (1), and slidable mounting has terminal body (3) in first recess (2), and the bilateral symmetry fixed mounting of terminal body (3) has wedge (4), all is equipped with the locking module of fixed wedge (4) on the both sides inner wall of first recess (2), locking module is including seting up through-hole (5) on first recess (2) both sides inner wall, and slidable mounting has kelly (6) in through-hole (5), and the both ends of kelly (6) all extend outside through-hole (5), and the one end that kelly (6) are located first recess (2) contacts with wedge (4), and slidable mounting has first fixture block (7) that the fixed cover was established on kelly (6) in through-hole (5), one side of the first clamping block (7) far away from the terminal body (3) is provided with a second clamping block (8) fixedly arranged in the through hole (5), the second clamping block (8) is sleeved on the clamping rod (6) in a sliding manner, the clamping rod (6) is sleeved with a first spring (9), two ends of the first spring (9) are respectively welded on the corresponding first clamping block (7) and the second clamping block (8), the bottom of the terminal body (3) is provided with a clamping groove (10) positioned in the first groove (2), a fixing block (11) is arranged in the clamping groove (10) in a sliding manner, the bottom side of the fixing block (11) extends out of the clamping groove (10), the bottom of the fixing block (11) is symmetrically and rotatably provided with two connecting rods (12), the inner wall of the bottom side of the first groove (2) is provided with a buffer module, the buffer module comprises a sliding groove (13) arranged on the inner wall of the bottom side of the first groove (2), and two sliding blocks, the top of the sliding block (14) extends out of the sliding chute (13), and the bottom ends of the two connecting rods (12) are respectively and rotatably arranged on the two sliding blocks (14);
positioning grooves (15) are symmetrically formed in the inner walls of the two sides of the through hole (5), first balls (16) are symmetrically and rotatably mounted on the two sides of the clamping rod (6), and the first balls (16) are rotatably mounted in the positioning grooves (15) in a rolling manner;
one side, close to the terminal body (3), of the second clamping block (8) is provided with a transverse through hole, the clamping rod (6) is slidably mounted in the transverse through hole, two ends of the clamping rod (6) extend out of the transverse through hole, and the periphery of the protective seat (1) is provided with a protective pad (30);
one end, located in the first groove (2), of the clamping rod (6) is rotatably provided with a second ball (17), the second ball (17) is matched with the wedge-shaped block (4), one end, far away from the second ball (17), of the clamping rod (6) is vertically rotatably provided with a rotating rod (18), the bottom end of the rotating rod (18) is fixedly provided with a handle (20) located below the clamping rod (6), clamping holes (19) located below the two through holes (5) are symmetrically formed in two sides of the protection seat (1), and one end, far away from the rotating rod (18), of the handle (20) is slidably installed in the clamping hole (19);
the inner wall of the clamping hole (19) is fixedly provided with an anti-slip pad, the anti-slip pad is in contact with the handle (20), and the anti-slip pad is made of rubber;
a sliding rod (21) is fixedly installed in the sliding groove (13), the two sliding blocks (14) are sleeved on the sliding rod (21) in a sliding mode, a second spring (22) is sleeved on the sliding rod (21), and two ends of the second spring (22) are welded on the two sliding blocks (14) respectively;
square grooves are formed in the sides, close to each other, of the two sliding blocks (14), and one ends, far away from the fixed block (11), of the two connecting rods (12) are rotatably installed in the two square grooves respectively;
second grooves (23) are symmetrically formed in the inner walls of the two sides of the sliding chute (13), ejector rods (24) are arranged in the second grooves (23) in a sliding mode, and the ends, close to each other, of the two ejector rods (24) extend out of the two second grooves (23) and are fixedly mounted on the two sliding blocks (14) respectively;
the end, far away from each other, of each of the two ejector rods (24) is provided with a third groove (25), a push rod (26) is arranged in each third groove (25) in a sliding mode, the end, far away from each other, of each push rod (26) extends out of each of the two third grooves (25) and is fixedly installed on the inner wall, far away from each other, of each second groove (23), each inner wall, close to each other, of each third groove (25) is welded with a third spring (27), and each third spring (27) and each push rod (26) are welded and fixed;
limiting grooves (28) are symmetrically formed in the inner walls of the two sides of the second groove (23), limiting blocks (29) are symmetrically and fixedly mounted on the two sides of the ejector rod (24), and the limiting blocks (29) are connected with the limiting grooves (28) in a sliding mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711284530.3A CN107945483B (en) | 2017-12-07 | 2017-12-07 | Handheld client information inquiry terminal with checking function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711284530.3A CN107945483B (en) | 2017-12-07 | 2017-12-07 | Handheld client information inquiry terminal with checking function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107945483A CN107945483A (en) | 2018-04-20 |
| CN107945483B true CN107945483B (en) | 2020-08-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711284530.3A Expired - Fee Related CN107945483B (en) | 2017-12-07 | 2017-12-07 | Handheld client information inquiry terminal with checking function |
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| CN (1) | CN107945483B (en) |
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| WO2005061912A1 (en) * | 2003-12-22 | 2005-07-07 | Harald Burgstaller | Adjusting device and fixing device |
| CN101006240A (en) * | 2004-08-17 | 2007-07-25 | 金钟逸 | Door lock |
| CN206058234U (en) * | 2016-07-19 | 2017-03-29 | 中交北斗技术有限责任公司 | A kind of anticollision rfid interrogator for being easy to receive |
| CN107348993A (en) * | 2017-08-11 | 2017-11-17 | 郑鑫 | A kind of portable medical instruments |
| CN107322494A (en) * | 2017-09-05 | 2017-11-07 | 郑州嘉晨化工科技有限公司 | A kind of superhard material grinds fluted disc |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107945483A (en) | 2018-04-20 |
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