Explosion-proof handheld code scanning terminal

Abstract

The utility model relates to the technical field of explosion-proof handheld code scanning terminals, and discloses an explosion-proof handheld code scanning terminal, which comprises a main body, a display screen is mounted on the surface of the main body, and the explosion-proof handheld code scanning terminal scans bar codes on the surfaces of goods through a bar code scanner, so that the goods can be scanned through the display screen. The key node information such as the license plate number, the pipe number and the storage tank number of a business document is read and displayed on the display screen, personnel can check conveniently, the working efficiency is improved, meanwhile, during use, the connecting plate is rotated, the rotary drum rotates synchronously, the volute spiral spring is rolled, when the silica gel plug is located under the charging port, the connecting plate is pressed, the silica gel plug enters the charging port, and the charging port is opened. And through movement of a limiting groove, a limiting rod and a stable sliding rod, when charging is needed, a connecting plate is pulled out, a silica gel plug can be separated from the charging port, a volute spiral spring is released, the silica gel plug and the connecting plate are made to be away from the charging port, and at the moment, personnel can normally conduct charging work.

Description

Technical Field

[0001] The utility model relates to the technical field of explosion-proof handheld code scanning terminals, in particular to an explosion-proof handheld code scanning terminal. Background Technique

[0002] The operation of unloading a vehicle refers to the operation process of unloading goods from a means of transportation (such as a truck, train, ship, etc.) and placing them at a designated location. When performing the vehicle unloading operation, it is necessary to record the goods.

[0003] During the existing vehicle unloading operation and loading / unloading ship operation, when loading and unloading, the review of vehicle unloading documents and the review of the technological process are currently all carried out manually, which is time-consuming and laborious, and the work efficiency is relatively low. Currently, an explosion-proof handheld code scanning terminal can be used for quickly scanning barcodes for verification work. However, for the existing explosion-proof handheld code scanning terminals, the charging ports provided on their surfaces are mostly exposed outside. In some environments with heavy dust or during long-term use, external dust will enter the charging ports, and the dust will accumulate inside the charging ports, resulting in poor contact between the charging plug and the charging port. This may cause the charging speed to slow down, charging interruption, or even inability to charge, affecting the normal operation of the device. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an explosion-proof handheld code scanning terminal to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: An explosion-proof handheld code scanning terminal, including a main body, a display screen is installed on the surface of the main body, a key is installed on the surface of the main body, a barcode scanner is connected to the top of the main body, a charging port is opened at the bottom of the main body, and the barcode scanner, the display screen, and the charging port are all electrically connected.

[0006] Preferably, a protection component for preventing dust from entering the charging port and a limiting component for preventing accidental detachment are provided on the surface of the main body. The protection component includes: a cavity, which is opened inside the main body. The inner wall of the cavity is rotatably connected to a rotating cylinder. A scroll spring is fixed on the surface of the rotating cylinder, and the end of the scroll spring away from the rotating cylinder is fixed on the inner wall of the cavity. A chute is opened inside the rotating cylinder, and a round plate is slidably connected to the inner wall of the chute. A limiting rod is fixed on the inner wall of the chute. A limiting groove is opened on the surface of the round plate, and the limiting rod is slidably connected to the inner wall of the limiting groove. A sliding rod is fixed on the surface of the round plate. The end of the sliding rod away from the round plate penetrates the rotating cylinder and is slidably connected to the rotating cylinder. A connecting plate is fixed at the end of the sliding rod away from the round plate. A silica gel plug is fixed on the side of the connecting plate close to the main body. By rotating the connecting plate, the rotating cylinder rotates synchronously, and the scroll spring is wound up. When the silica gel plug is directly below the charging port, press the connecting plate, and the silica gel plug enters the charging port to block the charging port. Pull the connecting plate, and the scroll spring is released, so that the connecting plate can drive the silica gel plug to reset.

[0007] Preferably, the limiting component includes a groove, which is opened at the bottom of the main body. A clamping groove is opened on the inner wall of the groove. A fixing column is fixed on the side of the connecting plate close to the main body. An inner cavity is opened inside the fixing column. A linkage plate is slidably connected to the inner wall of the inner cavity. An active rod is arranged inside the inner cavity. The active rod penetrates the linkage plate. There are four groups of the linkage plates and the active rods, and the four groups of the linkage plates and the active rods are circumferentially arranged around the center of the fixing column. A spring is fixed between the four active rods. A rotating rod is rotatably connected to the inner wall of the inner cavity. A clamping tooth is fixed on the surface of the rotating rod. Rack teeth are fixed on the inner sides of two of the four linkage plates, and the rack teeth are engaged with the clamping teeth. A knob is rotatably connected to the side of the connecting plate away from the fixing column. The output shaft of the knob penetrates the connecting plate and the fixing column, and the output shaft of the knob is fixed on the surface of the rotating rod. A clamping block is fixed on the side of the linkage plate away from the rotating rod. The end of the clamping block away from the linkage plate penetrates the fixing column and is slidably connected to the fixing column. When the silica gel plug enters the charging port, the fixing column enters the groove. Through the arranged connecting plate, active rod and spring, the clamping block enters the clamping groove, so that the clamping block can be limited, and the connecting plate and the main body are stabilized, avoiding accidental detachment of the silica gel plug. By rotating the knob, through the clamping teeth and the rack teeth, the limit can be released, facilitating the removal of the silica gel plug.

[0008] Preferably, the side of the clamping block away from the connecting plate is provided with an inclined surface, which can make the clamping block enter the inner cavity when being abutted.

[0009] Preferably, both the linkage plate and the active rod are arranged in an arc shape, and no interference will be caused during radial synchronous movement.

[0010] Preferably, four sets of the limiting rods and the limiting grooves are provided, and the four sets of limiting rods and the limiting grooves are circumferentially arranged in an array with the center of the circular plate as the axis, so as to improve the stability of the movement of the circular plate and the sliding rod.

[0011] Compared with the prior art, the utility model provides an explosion-proof handheld code scanning terminal, which has the following beneficial effects:

[0012] 1. For this explosion-proof handheld code scanning terminal, the bar code scanner scans the bar code on the surface of the goods to read the key node information such as the license plate number, pipeline number, and storage tank number of the business document, and displays it on the display screen, which is convenient for personnel to view and improves work efficiency. At the same time, when in use, rotate the connecting plate, and the rotating cylinder rotates synchronously, and the scroll spring is wound. When the silica gel plug is directly below the charging port, press the connecting plate, and the silica gel plug enters the charging port to block the charging port. Through the limiting groove and the limiting rod, the movement of the sliding rod is stabilized. When charging is required, pull out the connecting plate, and the silica gel plug can be separated from the charging port, and the scroll spring is released, so that the silica gel plug and the connecting plate are away from the charging port. At this time, the personnel can normally carry out the charging work.

[0013] 2. For this explosion-proof handheld code scanning terminal, through the arranged limiting component, when the silica gel plug enters the charging port, the fixed column enters the groove. Through the arranged connecting plate, movable rod, and spring, the clamping block enters the clamping groove, so as to limit the clamping block and make the connecting plate and the main body stable, avoiding accidental detachment of the silica gel plug. Rotate the knob, and through the gear teeth and the rack, the limit can be released, which is convenient to take out the silica gel plug. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a front view structural schematic diagram of the utility model;

[0015] Figure 2 is a side view structural schematic diagram of the utility model;

[0016] Figure 3 is a side view explosion structural schematic diagram of the utility model;

[0017] Figure 4 is a partial sectional view structural schematic diagram of the utility model;

[0018] Figure 5 is a partial internal structure schematic diagram of the utility model;

[0019] Figure 6 is a partial sectional front view structural schematic diagram of the utility model.

[0020] In the figure: 1. Main body; 2. Button; 3. Display screen; 4. Barcode scanner; 5. Charging port; 6. Protection component; 60. Cavity; 61. Rotating cylinder; 62. Volute spring; 63. Chute; 64. Circular plate; 65. Limiting rod; 66. Limiting groove; 67. Slide bar; 68. Silicone plug; 69. Connecting plate; 7. Limiting component; 70. Groove; 71. Card slot; 72. Fixed column; 73. Inner cavity; 74. Linking plate; 75. Movable rod; 76. Spring; 77. Clamping block; 78. Knob; 79. Rotating rod; 700. Teeth; 701. Rack. Detailed implementation manner

[0021] As Figures 1 - 6 shown, the present utility model provides a technical solution: an explosion-proof handheld scanning terminal, including a main body 1, a display screen 3 is installed on the surface of the main body 1, a button 2 is installed on the surface of the main body 1, a barcode scanner 4 is connected to the top of the main body 1, a charging port 5 is opened at the bottom of the main body 1, and the barcode scanner 4, the display screen 3, and the charging port 5 are all electrically connected.

[0022] A protection component 6 for preventing dust from entering the charging port 5 and a limiting component 7 for preventing accidental detachment are arranged on the surface of the main body 1. The protection component 6 includes: a cavity 60, the cavity 60 is opened inside the main body 1, the inner wall of the cavity 60 is rotatably connected with a rotating cylinder 61, a volute spring 62 is fixed on the surface of the rotating cylinder 61, one end of the volute spring 62 away from the rotating cylinder 61 is fixed on the inner wall of the cavity 60, a chute 63 is opened inside the rotating cylinder 61, a circular plate 64 is slidably connected to the inner wall of the chute 63, a limiting rod 65 is fixed on the inner wall of the chute 63, a limiting groove 66 is opened on the surface of the circular plate 64, the limiting rod 65 is slidably connected to the inner wall of the limiting groove 66, a slide bar 67 is fixed on the surface of the circular plate 64, one end of the slide bar 67 away from the circular plate 64 penetrates through the rotating cylinder 61, and the slide bar 67 is slidably connected to the rotating cylinder 61. One end of the slide bar 67 away from the circular plate 64 is fixed with a connecting plate 69, and a silicone plug 68 is fixed on the side of the connecting plate 69 close to the main body 1. Four groups of limiting rods 65 and limiting grooves 66 are provided, and the four groups of limiting rods 65 and limiting grooves 66 are circumferentially arranged in an array with the center of the circular plate 64 as the axis. Rotate the connecting plate 69, the rotating cylinder 61 rotates synchronously, and the volute spring 62 is wound up. When the silicone plug 68 is directly below the charging port 5, press the connecting plate 69, and the silicone plug 68 enters the charging port 5 to block the charging port 5. At the same time, when the connecting plate 69 moves, the slide bar 67 and the circular plate 64 are driven to move synchronously, and the stability of the movement of the slide bar 67 and the circular plate 64 is stabilized by cooperating with the limiting groove 66 and the limiting rod 65.

[0023] The limiting component 7 includes a groove 70 which is opened at the bottom of the main body 1. A clamping groove 71 is opened on the inner wall of the groove 70. A fixing column 72 is fixed on the side of the connecting plate 69 close to the main body 1. An inner cavity 73 is opened inside the fixing column 72. A linkage plate 74 is slidably connected to the inner wall of the inner cavity 73. An active rod 75 is arranged inside the inner cavity 73. The active rod 75 penetrates through the linkage plate 74. There are four groups of the linkage plate 74 and the active rod 75, and the four groups of the linkage plate 74 and the active rod 75 are circumferentially arrayed with the center of the fixing column 72 as the axis. A spring 76 is fixed between the four active rods 75. A rotating rod 79 is rotatably connected to the inner wall of the inner cavity 73. A clamping tooth 700 is fixed on the surface of the rotating rod 79. Rack teeth 701 are fixed on the inner side surfaces of two of the four linkage plates 74. The rack teeth 701 are meshed with the clamping teeth 700. A knob 78 is rotatably connected to the side of the connecting plate 69 away from the fixing column 72. The output shaft of the knob 78 penetrates through the connecting plate 69 and the fixing column 72, and the output shaft of the knob 78 is fixed on the surface of the rotating rod 79. A clamping block 77 is fixed on the side of the linkage plate 74 away from the rotating rod 79. One end of the clamping block 77 away from the linkage plate 74 penetrates through the fixing column 72, and the clamping block 77 is slidably connected to the fixing column 72. The side of the clamping block 77 away from the connecting plate 69 is provided with an inclined surface. Both the linkage plate 74 and the active rod 75 are arc-shaped. When the silica gel plug 68 enters the charging port 5, the fixing column 72 enters the groove 70. Through the arranged connecting plate 69, active rod 75 and spring 76, the clamping block 77 enters the clamping groove 71, so that the clamping block 77 can be limited, making the connecting plate 69 and the main body 1 stable and preventing the silica gel plug 68 from falling off accidentally. When charging is required, rotate the knob 78. The rotating rod 79 drives the clamping teeth 700 to rotate synchronously, pulling the rack teeth 701 and the linkage plate 74 to move close to the rotating rod 79. Through the active rod 75, each linkage plate 74 drives the clamping block 77 to disengage from the clamping groove 71. At this time, the person can pull up the connecting plate 69. At this time, the scroll spring 62 is released, and the rotating cylinder 61 drives the sliding rod 67 and the connecting plate 69 to reverse. At this time, the connecting plate 69 drives the silica gel plug 68 away from the charging port 5, and normal charging work can be carried out at this time.

[0024] When in need of use, personnel can scan the barcodes on the surface of goods through the barcode scanner 4 to read key node information such as the license plate number, pipe number, and storage tank number of the business document, which is displayed on the display screen 3 for the convenience of personnel to view and improve work efficiency. At the same time, when in use, personnel can rotate the connecting plate 69, and at this time, the rotating cylinder 61 rotates synchronously, and the scroll spring 62 winds up. When the silica gel plug 68 is directly below the charging port 5, press the connecting plate 69 at this time to make the silica gel plug 68 enter the charging port 5 to block the charging port 5 and prevent dust from entering the charging port 5 and affecting the normal operation of the charging port 5. At the same time, when the connecting plate 69 moves, it drives the slide bar 67 and the circular plate 64 to move synchronously. In cooperation with the limiting groove 66 and the limiting rod 65, the stability of the movement of the slide bar 67 and the circular plate 64 is stabilized. At the same time, when the silica gel plug 68 enters the charging port 5, the fixed column 72 enters the groove 70 at this time. At this time, the inclined surface of the clamping block 77 abuts against the inner wall of the groove 70, causing the clamping block 77 to enter the inner cavity 73. At the same time, the clamping block 77 drives the linkage plate 74 to move synchronously, causing the movable rod 75 to enter the linkage plate 74, and at the same time, the spring 76 compresses. In this way, the linkage plates 74, the movable rods 75, and the clamping blocks 77 can move radially synchronously. When the position of the clamping block 77 is parallel to the clamping groove 71, the spring 76 is released, and the clamping block 77 enters the clamping groove 71, thereby limiting the clamping block 77 and making the connecting plate 69 and the main body 1 stable, preventing the silica gel plug 68 from falling off accidentally. When charging is required, rotate the knob 78, and the rotating rod 79 drives the gear teeth 700 to rotate synchronously. At this time, pull the rack 701 and the linkage plate 74 to move closer to the rotating rod 79. Through the movable rod 75, each linkage plate 74 drives the clamping block 77 to disengage from the clamping groove 71. At this time, personnel can pull up the connecting plate 69. At this time, the scroll spring 62 is released, and the rotating cylinder 61 drives the slide bar 67 and the connecting plate 69 to reverse. At this time, the connecting plate 69 drives the silica gel plug 68 away from the charging port 5, and normal charging work can be carried out at this time.

[0025] The above generally describes the present invention in detail. However, based on the present invention, some modifications or improvements can be made, which are obvious to those of ordinary skill in the art. Therefore, modifications or improvements made without departing from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. An explosion-proof handheld barcode scanning terminal, comprising a main body (1), characterized in that: A display screen (3) is mounted on the surface of the main body (1), buttons (2) are mounted on the surface of the main body (1), a barcode scanner (4) is connected to the top of the main body (1), a charging port (5) is provided at the bottom of the main body (1), the barcode scanner (4), the display screen (3), and the charging port (5) are all electrically connected, and a protection component (6) for preventing dust from entering the charging port (5) and a limiting component (7) for preventing accidental detachment are provided on the surface of the main body (1).

2. The explosion-proof handheld barcode scanning terminal according to claim 1, characterized in that: The protection component (6) includes: a cavity (60), the cavity (60) is opened inside the main body (1), a rotating cylinder (61) is rotatably connected to the inner wall of the cavity (60), a scroll spring (62) is fixed on the surface of the rotating cylinder (61), one end of the scroll spring (62) away from the rotating cylinder (61) is fixed on the inner wall of the cavity (60), a chute (63) is opened inside the rotating cylinder (61), a circular plate (64) is slidably connected to the inner wall of the chute (63), a limiting rod (65) is fixed on the inner wall of the chute (63), a limiting groove (66) is opened on the surface of the circular plate (64), the limiting rod (65) is slidably connected to the inner wall of the limiting groove (66), a sliding rod (67) is fixed on the surface of the circular plate (64), one end of the sliding rod (67) away from the circular plate (64) penetrates through the rotating cylinder (61), and the sliding rod (67) is slidably connected to the rotating cylinder (61), a connecting plate (69) is fixed at one end of the sliding rod (67) away from the circular plate (64), and a silica gel plug (68) is fixed on the side of the connecting plate (69) close to the main body (1).

3. The explosion-proof handheld barcode scanning terminal according to claim 2, characterized in that: The limiting component (7) includes a groove (70) which is opened at the bottom of the main body (1). A clamping groove (71) is opened on the inner wall of the groove (70). A fixing column (72) is fixed on one side of the connecting plate (69) close to the main body (1). An inner cavity (73) is opened inside the fixing column (72). A linkage plate (74) is slidably connected to the inner wall of the inner cavity (73). A movable rod (75) is arranged inside the inner cavity (73). The movable rod (75) penetrates through the linkage plate (74). There are four groups of the linkage plates (74) and the movable rods (75), and the four groups of the linkage plates (74) and the movable rods (75) are circumferentially arrayed with the center of the fixing column (72) as the center of the circle. A spring (76) is fixed between the four movable rods (75). A rotating rod (79) is rotatably connected to the inner wall of the inner cavity (73). A clamping tooth (700) is fixed on the surface of the rotating rod (79). The rack teeth (701) are fixed on the inner side surfaces of two of the four groups of the linkage plates (74). The rack teeth (701) are meshed with the clamping teeth (700). A knob (78) is rotatably connected to one side of the connecting plate (69) far away from the fixing column (72). The output shaft of the knob (78) penetrates through the connecting plate (69) and the fixing column (72), and the output shaft of the knob (78) is fixed on the surface of the rotating rod (79). A clamping block (77) is fixed on one side of the linkage plate (74) far away from the rotating rod (79). One end of the clamping block (77) far away from the linkage plate (74) penetrates through the fixing column (72), and the clamping block (77) is slidably connected to the fixing column (72).

4. The explosion-proof handheld barcode scanning terminal according to claim 3, wherein: One side of the clamping block (77) far away from the connecting plate (69) is set as an inclined surface.

5. The explosion-proof handheld barcode scanning terminal according to claim 3, characterized in that: Both the linkage plate (74) and the movable rod (75) are set as arc-shaped.

6. The explosion-proof handheld barcode scanning terminal according to claim 2, wherein: There are four groups of the limiting rods (65) and the limiting grooves (66), and the four groups of the limiting rods (65) and the limiting grooves (66) are circumferentially arrayed with the center of the circular plate (64) as the center of the circle.

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