Research, development and production of liquid crystal display device for low-power-consumption electronic sphygmomanometer

Abstract

The invention discloses research and development and production of a liquid crystal display device for a low-power-consumption electronic sphygmomanometer, and the liquid crystal display device comprises a rack and further comprises a positioning assembly used for adsorbing a liquid crystal display screen; the positioning assembly comprises an air bellow, guide pipes, pipe barrels, gears, a sealing barrel and a net plate, the multiple pipe barrels are fixedly connected to the bottom of the air bellow, one ends of the multiple guide pipes are fixedly connected with the pipe barrels, the other ends of the multiple guide pipes are fixedly connected with the air bellow, the net plate is fixedly connected into the pipe barrels, and the sealing barrel is rotationally connected with the pipe barrels. Grooves of the sealing cylinder are aligned with meshes in the screen plate, the gear is fixedly connected to the sealing cylinder, and the gear is connected with the rack in a meshed mode. The liquid crystal display screen can be effectively prevented from being damaged in the installation process.

Description

Technical Field

[0001] The present invention belongs to the technical field of sphygmomanometer production, and in particular relates to the research and development and production of a liquid crystal display device for a low-power electronic sphygmomanometer. Background Art

[0002] A liquid crystal display (LCD) is a flat-panel display that produces images by stimulating liquid crystal molecules with electric current. It consists of two pieces of polarized material with liquid crystal material in between. When current passes through, the liquid crystal molecules will rearrange, thereby changing the transmittance of light and displaying images. LCDs have the advantages of low power consumption, small size, and low radiation, and are widely used in screen displays of televisions and computers. In the production process of electronic sphygmomanometers, the LCD needs to be clamped and pressed into the housing of the sphygmomanometer. However, since the LCD is thin, it is often damaged by clamping. A structure that can avoid damage to the display is proposed. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a method for developing and producing a liquid crystal display device for a low-power electronic sphygmomanometer, which solves the above-mentioned problems.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: research and development and production of a liquid crystal display device for a low-power electronic sphygmomanometer, including a frame, and also including: a positioning component for adsorbing a liquid crystal display screen; the positioning component includes a bellows, a conduit, a tube, a gear, a seal and a mesh plate, a plurality of tubes are fixedly connected to the bottom of the bellows, one end of the plurality of conduits is fixedly connected to the tube, and the other end of the plurality of conduits is fixedly connected to the bellows, a mesh plate is fixedly connected in the tube, the seal is rotatably connected to the tube, the groove of the seal is aligned with the mesh hole on the mesh plate, the gear is fixedly connected to the seal, and the gear is meshingly connected to the rack.

[0005] On the basis of the above technical solution, the present invention also provides the following optional technical solution:

[0006] Further technical solution: connecting rods are fixedly connected on both sides of the rack, the connecting rods are fixedly connected to the frame, a slide cylinder is fixedly connected to the bellows, the slide cylinder is threadedly connected to the screw rod, the screw rod is rotatably connected to the frame, and the frame is connected to the press-fit assembly.

[0007] Further technical solution: both sides of the bellows are slidably connected to the slide rods respectively, the slide rods are fixedly connected to the frame, one end of the screw rod is fixedly connected to the output shaft of the motor, and the motor is fixedly connected to the frame.

[0008] Further technical solution: The press-fitting assembly includes an axis, a cam, a turntable and a base plate. The two axes are symmetrically connected in rotation in the frame. The cam is fixedly connected to the axis. The cam can push the turntable during its rotation. The two turntables are rotatably connected to the bottom of the base plate.

[0009] Further technical solution: connecting ears are symmetrically fixedly connected on both sides of the base plate, and the connecting ears are slidably connected to the guide rod. A spring is sleeved on the guide rod, one end of the spring is fixedly connected to the connecting ear, and the other end of the spring is fixedly connected to the frame.

[0010] Further technical solution: A pulley A is fixedly connected to any of the shafts, a belt is transmission-connected to the pulley A, the other end of the belt is transmission-connected to the pulley B, the pulley B is fixedly connected to the screw rod, and the two are respectively fixedly connected, and the two cooperate with each other and are transmission-connected.

[0011] Further technical solution: The loading assembly includes a reel, a conveyor belt, a pipe sleeve and a reel. The reel is symmetrically rotatably connected in the frame. The two reels cooperate with each other and are transmission-connected to the conveyor belt. The conveyor belt is used to transport the sphygmomanometer case. Multiple pipe sleeves are symmetrically provided on both sides of the conveyor belt. The pipe sleeves are fixedly connected to the frame, and guide cylinders are rotatably connected to the multiple pipe sleeves.

[0012] Beneficial Effects

[0013] The present invention provides a research and development and production of a liquid crystal display device for a low-power electronic sphygmomanometer, which has the following beneficial effects compared with the prior art:

[0014] 1. Start the bellows to make the fan inside it start to rotate, thereby generating suction through the negative pressure airflow. At this time, since the groove on the sealing tube is directly opposite to the through hole on the screen in the initial state, the air duct formed by the screen and the sealing tube is in a smooth state. Therefore, the LCD screen under the sealing tube can be adsorbed to be close to the sealing tube. At the same time, the pressure relief through hole on the side wall of the tube can prevent the suction force generated by the bellows from being too large and causing damage to the screen. At this time, the user starts the motor, so that the motor drives the screw rod fixedly connected to its output shaft to start rotating. At this time, the sliding cylinder threadedly connected to the screw rod starts to drive the bellows fixedly connected to it, so that the bellows starts to move linearly along the sliding rod slidably connected to it, thereby starting to transport the LCD screen fixed on the sealing tube. The liquid crystal display screen is moved to the top of the sphygmomanometer housing. When the sphygmomanometer housing is pushed and bonded to the liquid crystal display screen, the bellows starts to drive the housing to slide as a whole, thereby taking it out of the bottom plate area. At the same time, the bellows continues to slide forward. When the gear fixedly connected to the sealing tube moves to the rack, the gear starts to roll on the rack meshing with it, so that the gear drives the sealing tube fixedly connected to it to start rotating synchronously. During the rotation of the sealing tube, the groove on it starts to separate and dislocate from the through hole on the mesh plate, so that the sealing tube starts to block the tube. At this time, the air duct formed by the sealing tube and the mesh plate starts to close, so that the housing and the display screen adsorbed on the sealing tube start to fall into the groove on the frame, so that the user can take it out easily.

[0015] 2. When the screw starts to rotate, the pulley B fixed on it rotates synchronously, and drives the transmission belt connected to it to rotate synchronously. At this time, the pulley A starts to rotate synchronously with the pulley B in cooperation with the belt connected to it, and makes the shaft fixedly connected at the axis of the pulley A start to rotate. At the same time, the pulley fixed on the shaft starts to rotate, and starts to rotate synchronously in cooperation with the belt A connected to it. Therefore, at this time, the two shafts start to drive the cam fixed on them to rotate synchronously at a uniform speed. At this time, the cam gradually begins to contact with the turntable during its rotation, and starts to push the bottom plate through the turntable. At the same time, the cam can reduce the friction generated by its contact through the rotation of the turntable during the contact with the turntable. At this time, the connecting ears fixedly connected on both sides of the bottom plate begin to slide upward along the connection with the guide rod, and begin to stretch the spring fixedly connected to it, so that the spring is in a deformed and stretched state, so that the cam stops supporting the turntable, which can make the spring rebound quickly and reset, and drive the bottom plate to slide synchronously. Therefore, at this time As the bellows drives the LCD screen to slide, the base plate begins to push the sphygmomanometer shell to slide upward. When the display screen moves to above the base plate, the cam is synchronously aligned with the central axis of the turntable, thereby pushing the shell and the display screen to be pressed and bonded together. Then the bellows begins to drive the shell and the display screen to move as a whole. Then the screw rod continues to rotate, so that the shaft drives the cam fixed thereon to rotate synchronously. At this time, the cam begins to gradually separate from the turntable, so the base plate begins to slide downward at a uniform speed to reset. Then the user starts the motor connected to the reel, so that the reel begins to rotate, and with the cooperation of the two reels, the conveyor belt begins to rotate at a uniform speed, so that the sphygmomanometer shell placed on the conveyor belt begins to be pushed forward, and the frontmost shell is pushed to the base plate, so as to facilitate the cyclic assembly of the sphygmomanometer shell and the LCD screen. At the same time, multiple guide cylinders rotatably arranged on both sides of the conveyor belt can guide the sphygmomanometer shell to avoid position changes after being pushed to the base plate, resulting in the display screen being unable to be installed to the correct position. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0017] Figure 2 It is a cross-sectional schematic diagram of the cam structure of the present invention.

[0018] Figure 3 It is an enlarged schematic diagram of the gear structure of the present invention.

[0019] Figure 4 It is an enlarged schematic diagram of the transmission structure of the present invention.

[0020] Figure 5 It is a schematic diagram of an enlarged cross section of the adsorption structure of the present invention.

[0021] Figure 6 It is a schematic cross-sectional view of the overall structure of the present invention.

[0022] Figure 7 It is a schematic diagram of the top view structure of the present invention.

[0023] Notes on figure marks: frame 101, positioning assembly 2, pressing assembly 3, feeding assembly 4, bellows 201, conduit 202, tube 203, gear 204, sealing tube 205, mesh plate 206, slide 207, screw 208, slide bar 209, motor 2001, rack 2002, connecting rod 2003, shaft 301, cam 302, turntable 303, bottom plate 304, connecting ear 305, guide rod 306, spring 307, pulley A 308, belt 309, pulley B 3001, pulley 3002, reel 401, conveyor belt 402, sleeve 403, reel 404. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0025] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0026] See also Figures 1 to 7 , provided in one embodiment of the present invention, a liquid crystal display device for a low-power electronic sphygmomanometer is developed and produced, including a frame 101, and also including:

[0027] Positioning component 2, used for adsorbing the liquid crystal display screen;

[0028] The positioning assembly 2 includes a bellows 201, a conduit 202, a tube 203, a gear 204, a seal 205 and a mesh plate 206. A plurality of tubes 203 are fixedly connected to the bottom of the bellows 201, one end of the plurality of conduits 202 is fixedly connected to the tube 203, the other end of the plurality of conduits 202 is fixedly connected to the bellows 201, a mesh plate 206 is fixedly connected in the tube 203, the seal 205 is rotatably connected to the tube 203, the groove of the seal 205 is aligned with the mesh holes on the mesh plate 206, the gear 204 is fixedly connected to the seal 205, and the gear 204 is meshedly connected to the rack 2002.

[0029] Specifically, connecting rods 2003 are fixedly connected on both sides of the rack 2002, and the connecting rods 2003 are fixedly connected to the frame 101. A slide 207 is fixedly connected to the bellows 201, and the slide 207 is threadedly connected to the screw rod 208. The screw rod 208 is rotatably connected to the frame 101, and the frame 101 is connected to the press-fit assembly 3.

[0030] Specifically, both sides of the bellows 201 are slidably connected to the slide rod 209 respectively, the slide rod 209 is fixedly connected to the frame 101, one end of the screw rod 208 is fixedly connected to the output shaft of the motor 2001, and the motor 2001 is fixedly connected to the frame 101.

[0031] In the embodiment of the present invention, the bellows 201 is started to rotate the fan therein, thereby generating suction through the negative pressure airflow. At this time, since the groove on the seal 205 is directly opposite to the through hole on the mesh plate 206 in the initial state, the air duct formed by the mesh plate 206 and the seal 205 is in a smooth state. Therefore, the liquid crystal display screen under the seal 205 can be adsorbed to be close to the seal 205. At the same time, the pressure relief through hole on the side wall of the tube 203 can prevent the suction force generated by the bellows 201 from being too large and causing damage to the display screen. At this time, the user starts to start the motor 2001, so that the motor 2001 drives the screw rod 208 fixedly connected to its output shaft to start rotating. At this time, the slide 207 threadedly connected to the screw rod 208 starts to drive the bellows 201 fixedly connected thereto, so that the bellows 201 starts to move linearly along the slide rod 209 slidably connected thereto, thereby starting to transport the liquid crystal display screen fixed on the seal 205. The liquid crystal display screen is moved to the top of the sphygmomanometer housing. When the sphygmomanometer housing is pushed and bonded to the liquid crystal display screen, the bellows 201 starts to drive it to slide as a whole, thereby taking it out of the bottom plate 304 area. At the same time, the bellows 201 continues to slide forward. When the gear 204 fixedly connected to the seal 205 moves to the rack 2002, the gear 204 starts to roll on the rack 2002 meshing with it, so that the gear 204 drives the seal 205 fixedly connected to it to start rotating synchronously. During the rotation of the seal 205, the groove on it starts to separate and misalign with the through hole on the mesh plate 206, so that the seal 205 starts to block the tube 203. At this time, the air duct formed by the seal 205 and the mesh plate 206 starts to close, so that the shell and the display screen adsorbed on the seal 205 start to fall into the groove on the frame 101, so that the user can take it out.

[0032] Specifically, the press-fitting assembly 3 includes a shaft 301, a cam 302, a turntable 303 and a base plate 304. The two shafts 301 are symmetrically rotatably connected in the frame 101. The cam 302 is fixedly connected to the shaft 301. The cam 302 can push the turntable 303 during its rotation. The two turntables 303 are rotatably connected to the bottom of the base plate 304.

[0033] Specifically, connecting ears 305 are symmetrically fixedly connected on both sides of the bottom plate 304, and the connecting ears 305 are slidably connected to the guide rod 306. A spring 307 is sleeved on the guide rod 306, and one end of the spring 307 is fixedly connected to the connecting ear 305, and the other end of the spring 307 is fixedly connected to the frame 101.

[0034] Specifically, a pulley A308 is fixedly connected to any one of the shafts 301, and a belt 309 is transmission-connected to the pulley A308. The other end of the belt 309 is transmission-connected to the pulley B3001, and the pulley B3001 is fixedly connected to the screw rod 208. 3002 is fixedly connected to the two 301s respectively, and the two 3002s cooperate with each other and are transmission-connected to 3003.

[0035] Specifically, the loading assembly 4 includes a reel 401, a conveyor belt 402, a sleeve 403 and a reel 404. The reel 401 is symmetrically rotatably connected in the frame 101. The two reels 401 cooperate with each other and are transmission-connected to the conveyor belt 402. The conveyor belt 402 is used to transport the sphygmomanometer case. Multiple sleeves 403 are symmetrically provided on both sides of the conveyor belt 402. The sleeves 403 are fixedly connected to the frame 101, and the multiple sleeves 403 are rotatably connected with guides 404 respectively.

[0036] In the embodiment of the present invention, when the screw rod 208 starts to rotate, the pulley B3001 fixedly connected thereto rotates synchronously, and drives the belt 309 connected thereto to rotate synchronously. At this time, the pulley A308 starts to rotate synchronously with the pulley B3001 in cooperation with the belt 309 connected thereto, and causes the shaft 301 fixedly connected at the axis of the pulley A308 to start to rotate. At the same time, the pulley 3002 fixedly connected to the shaft 301 starts to rotate, and starts to rotate synchronously in cooperation with the belt A3003 connected thereto. Therefore, at this time, the two shafts 301 start to drive the cam 300 fixedly connected thereto. 2 synchronously rotates at a uniform speed. At this time, the cam 302 gradually starts to contact with the rotating disk 303 during its rotation, and starts to push the bottom plate 304 through the rotating disk 303. At the same time, the cam 302 can reduce the friction generated by the contact through the rotation of the rotating disk 303 during the contact with the rotating disk 303. At this time, the connecting ears 305 fixedly connected on both sides of the bottom plate 304 begin to slide upward along the connection between them and the guide rod 306, and begin to stretch the spring 307 fixedly connected thereto, so that the spring 307 is in a deformed and stretched state, so that the cam 302 stops supporting the rotating disk 303, and the spring 307 can quickly rebound to restore. The bellows 201 moves the liquid crystal display screen to the upper part of the bottom plate 304, and drives the bottom plate 304 to slide synchronously. Therefore, when the bellows 201 drives the liquid crystal display screen to slide, the bottom plate 304 starts to push the sphygmomanometer housing to slide upward. When the display screen moves to the top of the bottom plate 304, the cam 302 is synchronously aligned with the central axis of the turntable 303, thereby pushing the housing and the display screen to be pressed and bonded together. Then the bellows 201 starts to drive the housing and the display screen to move as a whole. Then the screw rod 208 continues to rotate, so that the shaft 301 drives the cam 302 fixed thereon to rotate synchronously. At this time, the cam 302 begins to gradually separate from the turntable 303. 4 starts to slide downward at a uniform speed to reset, and then the user starts the motor connected to the reel 401, so that the reel 401 starts to rotate, and with the cooperation of the two reels 401, the conveyor belt 402 starts to rotate at a uniform speed, so that the sphygmomanometer shell placed on the conveyor belt 402 starts to be pushed forward, and the front shell is pushed onto the bottom plate 304, so as to facilitate the cyclic assembly of the sphygmomanometer shell and the liquid crystal display screen. At the same time, the multiple guides 404 rotatably arranged on both sides of the conveyor belt 402 can guide the sphygmomanometer shell to avoid position changes after being pushed onto the bottom plate 304, resulting in the display screen being unable to be installed to the correct position.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0038] The fixed connection referred to in this application refers to a connection in which a part or component is fixed without any relative movement, which can be divided into detachable connection and non-detachable connection.

[0039] (1) Removable connection: The parts are fixed together by screws, splines, wedge pins, etc. This connection method can be disassembled for maintenance without damaging the parts. However, the specifications of the connectors used must be correct (such as the length of the bolts, keys, and wedge pins) and they must be properly tightened.

[0040] (2) Non-detachable connection: mainly refers to welding, riveting and tenoning. Since forging, sawing or oxygen cutting are required for disassembly during maintenance or replacement, spare parts generally cannot be reused. At the same time, attention should be paid to process quality, technical inspection and remedial measures (such as calibration, polishing, etc.) during connection.

[0041] The sliding connection referred to in the present application means that the component can slide along a linear trajectory, and the hinged connection referred to in the present application means that the component can rotate along an axial constraint.

[0042] In some cases, the sliding connection and hinge referred to in the present application may also be damped so that the components have the ability to maintain a desired position.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A liquid crystal display device for a low-power electronic sphygmomanometer is developed and produced, comprising a frame (101), characterized in that: Also includes: A positioning component (2), used for adsorbing the liquid crystal display screen; The positioning assembly (2) comprises a bellows (201), a conduit (202), a tube (203), a gear (204), a sealing cylinder (205) and a mesh plate (206); a plurality of tubes (203) are fixedly connected to the bottom of the bellows (201); one end of the plurality of conduits (202) is fixedly connected to the tube (203); the other end of the plurality of conduits (202) is fixedly connected to the bellows (201); a mesh plate (206) is fixedly connected to the tube (203); the sealing cylinder (205) is rotatably connected to the tube (203); the groove of the sealing cylinder (205) is aligned with the mesh holes on the mesh plate (206); the gear (204) is fixedly connected to the sealing cylinder (205); and the gear (204) is meshingly connected to the rack (2002).

2. The development and production of a low-power electronic sphygmomanometer liquid crystal display device according to claim 1, characterized in that: Connecting rods (2003) are fixedly connected to both sides of the rack (2002), and the connecting rods (2003) are fixedly connected to the frame (101). A slide cylinder (207) is fixedly connected to the bellows (201), and the slide cylinder (207) is threadedly connected to a screw rod (208). The screw rod (208) is rotatably connected to the frame (101), and the frame (101) is connected to a press-fit assembly (3).

3. The development and production of a low-power electronic sphygmomanometer liquid crystal display device according to claim 2, characterized in that: Both sides of the bellows (201) are slidably connected to the slide bars (209), the slide bars (209) are fixedly connected to the frame (101), one end of the screw rod (208) is fixedly connected to the output shaft of the motor (2001), and the motor (2001) is fixedly connected to the frame (101).

4. The development and production of a low-power electronic sphygmomanometer liquid crystal display device according to claim 2, characterized in that: The press-fitting assembly (3) comprises a shaft (301), a cam (302), a rotating disk (303) and a bottom plate (304); the two shafts (301) are symmetrically rotatably connected in the frame (101); the cam (302) is fixedly connected to the shaft (301); the cam (302) can push the rotating disk (303) during its rotation; the two rotating disks (303) are rotatably connected to the bottom of the bottom plate (304).

5. The development and production of a low-power electronic sphygmomanometer liquid crystal display device according to claim 4, characterized in that: Connecting ears (305) are symmetrically fixedly connected to both sides of the bottom plate (304), and the connecting ears (305) are slidably connected to the guide rod (306). A spring (307) is sleeved on the guide rod (306), and one end of the spring (307) is fixedly connected to the connecting ear (305), and the other end of the spring (307) is fixedly connected to the frame (101).

6. The development and production of a low-power electronic sphygmomanometer liquid crystal display device according to claim 4, characterized in that: A pulley A (308) is fixedly connected to any of the shafts (301), a belt (309) is transmission-connected to the pulley A (308), the other end of the belt (309) is transmission-connected to a pulley B (3001), the pulley B (3001) is fixedly connected to a screw rod (208), and two (301) are respectively fixedly connected to (3002), and the two (3002) cooperate with each other and are transmission-connected to (3003).

7. The development and production of a low-power electronic sphygmomanometer liquid crystal display device according to claim 1, characterized in that: The loading assembly (4) comprises a reel (401), a conveyor belt (402), a tube sleeve (403) and a guide cylinder (404); the reel (401) is symmetrically rotatably connected in the frame (101); the two reels (401) cooperate with each other and are transmission-connected to the conveyor belt (402); the conveyor belt (402) is used to transport the sphygmomanometer case; a plurality of tube sleeves (403) are symmetrically provided on both sides of the conveyor belt (402); the tube sleeves (403) are fixedly connected to the frame (101); and the plurality of tube sleeves (403) are rotatably connected to the guide cylinders (404) respectively.

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