RFID reader-writer with rotatable antenna

Abstract

The utility model relates to an RFID (Radio Frequency Identification Device) reader-writer with a rotatable antenna, which aims to solve the technical problems that the current antenna is in an unstable state and the antenna is shaken when the reader-writer moves, and comprises an RFID reader-writer body, a rotating antenna is arranged on one side of the rear end of a shell of the RFID reader-writer body, and the RFID reader-writer further comprises a limiting structure; the limiting structure is arranged on the other side of the rear end of the shell of the RFID reader-writer body; the limiting structure comprises a fixing block, a connecting block, a U-shaped clamping block and an abutting elastic piece. The fixed block is fixedly arranged on the other side of the rear end of the RFID reader-writer body shell; the inner ends of the connecting blocks are connected with the outer ends of the fixing blocks; the two U-shaped clamping blocks are arranged on the two side walls of a groove formed in the top side of the outer end of the connecting block correspondingly. The two abutting elastic pieces are arranged on the tops of the opposite sides of the transverse sections of the two U-shaped clamping blocks correspondingly. The RFID reader-writer provided by the utility model has the advantages that when the RFID reader-writer body is not in use, the rotary antenna can be positioned when the rotary antenna is rotated to be horizontal, and the alignment stability of the rotary antenna and the RFID reader-writer body is kept.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of reader and writer, especially relates to the RFID reader and writer of rotatable antenna. BACKGROUND

[0002] RFID is the abbreviation of radio frequency identification, and its principle is that the reader and the tag carry out non-contact data communication, so as to achieve the purpose of identifying the target.

[0003] For the wireless RFID reader and writer, the antenna is configured, and the signal is received or transmitted through the antenna. The antenna is rotatable, and in the case of inapplicability, the antenna can be rotated to be flush with the reader and writer, but the antenna is in an unstable state, and the antenna is swung when the reader and writer move.

[0004] In view of this, we propose the RFID reader and writer of rotatable antenna. INVENTION CONTENTS

[0005] The utility model aims at overcoming the defects of prior art, adapting to the actual needs, and providing the RFID reader and writer of rotatable antenna to solve the technical problems that the current antenna is in an unstable state and the antenna is swung when the reader and writer move.

[0006] In order to realize the utility model's purpose, the technical scheme that the utility model adopts is that the RFID reader and writer of rotatable antenna is designed, including the RFID reader and writer body, the rear end of the RFID reader and writer body shell is arranged with the rotating antenna, and the limiting structure is further included.

[0007] The limiting structure is arranged on the other side of the rear end of the RFID reader and writer body shell.

[0008] The limiting structure includes a fixed block, a connecting block, a U-shaped clamping block and an abutting spring sheet.

[0009] The fixed block is fixedly arranged on the other side of the rear end of the RFID reader and writer body shell.

[0010] The inner end of the connecting block is connected with the outer end of the fixed block.

[0011] Two U-shaped clamping blocks are arranged on the two side walls of the groove opened on the top side of the outer end of the connecting block.

[0012] Two abutting spring sheets are arranged on the top of the opposite side of the horizontal section of the two U-shaped clamping blocks.

[0013] Wherein, the outer end of the rotating antenna is limited and matched with the two abutting spring sheets.

[0014] Preferably, the inner end of the connecting block and the outer end of the fixed block are connected through a hinge.

[0015] Preferably, the two longitudinal sections of the U-shaped clamping block are fixedly connected with the outer end of the connecting block by screws respectively.

[0016] The screw is screwed into the threaded hole of the longitudinal section of the U-shaped clamping block, and the inner end of the screw is inserted into the hole of the outer end of the connecting block.

[0017] Preferably, the abutting spring plate is designed in an arc structure, and the arch end bottom side of the abutting spring plate is abuttingly matched with the outer end of the rotary antenna.

[0018] Compared with the prior art, the utility model has the beneficial effects that:

[0019] 1. The utility model discloses a fixing block, a connecting block, a groove, a U-shaped clamping block and an abutting spring plate are arranged, which have the advantages that the rotary antenna can be positioned when being rotated to be horizontal without using the RFID reader and writer body, and the stability of the rotary antenna and the RFID reader and writer body is kept, so that the problem that the antenna is unstable and the antenna is swung when the reader and writer moves is solved.

[0020] 2. The utility model discloses a fixing block, a connecting block and a hinge are arranged, which have the advantage that when the rotary antenna is used, the connecting block is rotated to the shell of the RFID reader and writer body relative to the fixing block, and the occupied space is reduced. DRAWINGS

[0021] Fig. 1 It is the overall structure schematic diagram when not using the utility model;

[0022] Fig. 2 It is the limiting structure schematic diagram of the utility model;

[0023] Fig. 3 It is the limiting structure exploded schematic diagram of the utility model;

[0024] Fig. 4 It is the overall structure schematic diagram when using the utility model;

[0025] In the drawing: 1, RFID reader and writer body; 2, rotary antenna; 3, limiting structure;

[0026] 301, fixing block; 302, hinge; 303, connecting block; 304, U-shaped clamping block; 305, abutting spring plate; 306, screw; 3031, groove. DETAILED DESCRIPTION

[0027] The utility model is further illustrated as follows in combination with the drawings and examples:

[0028] Example 1: the RFID reader and writer of the rotatable antenna, referring to Figs. 1 to 4The device includes an RFID reader body 1, a rotating antenna 2 arranged on one side of the rear end of the RFID reader body 1, and a limiting structure 3; the limiting structure 3 is arranged on the other side of the rear end of the RFID reader body 1.

[0029] The limiting structure 3 includes a fixing block 301, a connecting block 303, a U-shaped locking block 304, and an abutting spring 305; the fixing block 301 is fixed to the other side of the rear end of the RFID reader body 1; the inner end of the connecting block 303 is connected to the outer end of the fixing block 301; the two U-shaped locking blocks 304 are respectively arranged on the two side walls of the groove 3031 opened on the top side of the outer end of the connecting block 303; the two abutting springs 305 are respectively arranged on the top of the opposite side of the transverse section of the two U-shaped locking blocks 304; wherein, the outer end of the rotating antenna 2 is limited and cooperated with the two abutting springs 305.

[0030] This utility model, by setting a fixing block 301, a connecting block 303, a groove 3031, a U-shaped locking block 304, and an abutment spring 305, has the advantage that when the rotating antenna 2 is rotated to a horizontal position without using the RFID reader body 1, it can be positioned and the rotating antenna 2 and the RFID reader body 1 are kept level and stable. This solves the problem that the antenna is in an unstable state and the antenna is flung when the reader is moved.

[0031] Specifically, the inner end of the connecting block 303 and the outer end of the fixing block 301 are connected by a hinge 302.

[0032] This utility model, by setting a fixing block 301, a connecting block 303 and a hinge 302, has the advantage that when the rotating antenna 2 is rotated out for use, the connecting block 303 rotates relative to the fixing block 301 and moves towards the outer shell of the RFID reader / writer body 1, thus reducing the space occupied.

[0033] Furthermore, the two longitudinal sections of the U-shaped block 304 are fixedly connected to the outer end of the connecting block 303 by screws 306; wherein, the screws 306 are threaded through the threaded holes opened in the longitudinal sections of the U-shaped block 304, and the inner end of the screws 306 is inserted into the opening at the outer end of the connecting block 303.

[0034] This utility model has the advantages of a detachable U-shaped locking block 304, which facilitates the replacement of the abutment spring 305, by setting screw 306.

[0035] Furthermore, the abutment spring 305 has an arc-shaped structure design. The bottom side of the arched end of the abutment spring 305 abuts against the outer end of the rotating antenna 2. The arc-shaped abutment spring 305 bends more smoothly when squeezed, without affecting the outer end of the rotating antenna 2 from being inserted into the groove 3031.

[0036] Working principle: use the device of the utility model, when not using RFID reader and writer body 1, connecting block 303 is aligned relative to fixed block 301, rotate rotary antenna 2, so that the outer end of rotary antenna 2 is clamped into groove 3031, in the process of clamping the outer end of rotary antenna 2, the arc-shaped abutment spring 305 is extruded, until the outer end of rotary antenna 2 is completely entered into groove 3031, the arching end bottom side of abutment spring 305 abuts with the outer end of rotary antenna 2, and the outer end of rotary antenna 2 is limited. When using RFID reader and writer body 1, the outer end of rotary antenna 2 can be directly rotated out of groove 3031. When replacing abutment spring 305, unscrew and remove screw 306, replace new U-shaped clamping block 304 and abutment spring 305, screw 306 is screwed into the threaded hole provided in the longitudinal section of U-shaped clamping block 304, and the inner end of screw 306 is inserted into the outer end opening of connecting block 303 for fixation.

[0037] The utility model discloses an embodiment discloses the preferred embodiment, but is not limited to this, and the ordinary skill of the art, easily understands the spirit of the utility model according to the above embodiment, and makes different extension and change, but as long as not departing from the spirit of the utility model, all are within the protection scope of the utility model.

Claims

1. An RFID reader / writer with a rotatable antenna, comprising an RFID reader / writer body (1), a rotatable antenna (2) arranged on the back end side of the housing of the RFID reader / writer body (1), characterized in that, Also include: Limiting structure (3), arranged in the rear end of the other side of the RFID reader body (1) shell; The limiting structure (3) comprises: Fixed block (301), fixed to the rear end of the other side of the RFID reader body (1) shell; Connecting block (303), inner end and the outer end of the fixed block (301) are connected; Two U-shaped blocks (304) are arranged on both sides of the groove (3031) on the top side of the outer end of the connecting block (303); Two abutting springs (305) are arranged on the top of the opposite side of the horizontal section of the two U-shaped blocks (304); Wherein, the outer end of the rotating antenna (2) is limited and matched with the two abutting springs (305).

2. The RFID reader / writer of claim 1, wherein, The inner end of the connecting block (303) and the outer end of the fixed block (301) are connected by a hinge (302).

3. The RFID reader / writer of claim 1, wherein, The two longitudinal sections of the U-shaped block (304) are fixedly connected with the outer end of the connecting block (303) by screws (306). Wherein, the screw (306) is threaded through the threaded hole in the longitudinal section of the U-shaped block (304), and the inner end of the screw (306) is inserted into the opening in the outer end of the connecting block (303).

4. The RFID reader / writer of claim 1, wherein, The abutting spring (305) is designed in an arc shape, and the arch end of the abutting spring (305) is abutted with the outer end of the rotating antenna (2).

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