An IC card water meter housing structure

Abstract

The present application provides a housing structure for an IC card water meter, which relates to the technical field of intelligent water meters. A housing structure for an IC card water meter includes a meter housing, the meter housing is arranged on the meter body, a winding assembly is arranged on one side of the meter housing, a retaining piece is elastically received in the winding assembly, a sliding rod is fixedly connected to the picking plate, a second spring is sleeved on the sliding rod, a first connecting rod is inserted into the clamping plate, one end of the first connecting rod is hinged to a second connecting rod, one end of the second connecting rod is hinged to a limit bolt, the limit bolt is horizontally limited and slides in the clamping plate. By using the elasticity of the second spring, the picking plate is pressed against the clamping plate, the first connecting rod moves downward in the vertical groove, driving the limit bolt to have a horizontal displacement in the clamping plate, and forming an insertion connection with the slideway to limit the clamping plate, so that the retaining piece cannot be retracted into the winding assembly, thereby completing the shielding of the insertion slot and the digital display screen, and avoiding the erosion of the insertion slot and the digital display screen caused by oil fume.

Description

Technical Field

[0001] This application relates to the field of intelligent water meters, and more particularly to a housing structure for an IC card water meter. Background Art

[0002] Generally, the appearance of an IC card water meter is basically similar to that of a general water meter, and its installation process is also basically the same. The use of an IC card water meter is very simple. From the user's perspective, it is just to insert the IC card into the water meter. The working process of an IC card water meter is generally as follows: Insert the IC card containing the amount into the water meter. After the microcomputer module recognizes and downloads the amount, the valve opens, and the user can use water normally. When the user uses water, the water volume collection device starts to collect the water consumption and converts it into the required electronic signal to be supplied to the microcomputer module for metering, and is displayed on the LCD display module; when the user's water consumption amount drops to a certain value, the microcomputer module gives an audible alarm to prompt the user to go and pay for water with the card; if the water consumption amount is exceeded, the microcomputer module will automatically close the electric control valve to cut off the water supply until the user inserts the paid IC card to restart the valve to supply water.

[0003] In actual use, this kind of water meter is generally placed near the kitchen or even installed in the kitchen. The kitchen is seriously polluted by oil fumes. Over time, a thick oil film will cover the surface of the water meter, affecting the digital display of the water meter and eroding the IC card slot on the water meter. Seriously, it will affect the normal use of the user and cause the IC card to be invalid after insertion. Summary of the Invention

[0004] This application aims to solve at least one of the technical problems existing in the prior art. For this purpose, this application provides a housing structure for an IC card water meter, including a housing, the housing is arranged on the meter body, an IC card slot, a digital display window and a mechanical display window are arranged on the upper surface of the housing, the mechanical display window corresponds to the mechanical pointer part on the meter body, the mechanical display window is embedded in the housing, a computer board, an IC card interface, a digital display screen and a battery are arranged in the housing, the computer board is arranged in the housing, the IC card interface is arranged on the computer board and is adapted to the IC card slot, the digital display screen is arranged on the computer board and is adapted to the digital display window, the battery is arranged in the housing and is used to supply power to the computer board, and further includes:

[0005] An oil blocking mechanism is arranged on the housing;

[0006] The oil baffle mechanism includes a winding component, a slideway and a clamping plate. The winding component is arranged on one side of the watch case. A baffle is elastically accommodated in the winding component. The slideways are symmetrically arranged and fixedly connected to the watch case. The baffle is slidably connected to the slideways. The clamping plate is slidably connected to the slideways and fixedly connected to the baffle. Moving cavities and vertical grooves are symmetrically arranged in the clamping plate. A picking plate is arranged at the upper end of the clamping plate. A sliding rod is fixedly connected to the picking plate. The sliding rod is limited and slidably inserted into the clamping plate. A second spring is sleeved on the sliding rod. First connecting rods are symmetrically and fixedly connected to the picking plate. The first connecting rods are inserted into the clamping plate. One end of the first connecting rod away from the picking plate is hinged to a second connecting rod, and the shaft at the hinge is slidably matched with the vertical groove. The second connecting rod is arranged in the moving cavity. One end of the second connecting rod away from the first connecting rod is hinged to a limiting bolt. The limiting bolt is horizontally limited and slidably arranged in the clamping plate, and one end of the limiting bolt away from the second connecting rod is inserted and matched with the slideway.

[0007] According to an IC card water meter housing structure of an embodiment of the present application, the beneficial effect is that by using the cooperation of the clamping plate and the slideway, the baffle elastically accommodated in the winding component is pulled out. When the IC card does not need to be inserted, due to the elasticity of the second spring, the picking plate is pressed against the clamping plate. At this time, the first connecting rod moves downward in the vertical groove, causing the top end of the second connecting rod to move downward. Since the length of the second connecting rod remains unchanged, its bottom end drives the limiting bolt to move horizontally in the clamping plate and form an insertion with the slideway to limit the clamping plate. Then, the baffle cannot be retracted into the winding component due to elasticity to complete the shielding of the card insertion slot and the digital display screen, avoiding the erosion of the card insertion slot and the digital display screen by oil fume. When the card insertion slot needs to be used, the picking plate is lifted upward, and the limiting bolt will be driven to move back through the first connecting rod and the second connecting rod, so that the clamping plate and the slideway are disengaged from the limit, and then the baffle can be retracted into the winding component, exposing the card insertion slot.

[0008] In addition, an IC card water meter housing structure according to an embodiment of the present application further has the following additional technical features:

[0009] In some specific embodiments of the present application, a notch is provided on the upper surface of the watch case, and the notch is arranged on one side of the mechanical display window.

[0010] In some specific embodiments of the present application, a chute is provided on the side of the watch case where the winding component is arranged, and the cross section of the chute is in an inverted L shape.

[0011] In some specific embodiments of the present application, the winding component includes a storage box, a reel and a spring. The storage box is arranged on the watch case. The reel is inserted into the storage box. Springs are symmetrically sleeved on the reel, and one end of each spring is fixedly connected to the storage box, and the other end of each spring is fixedly connected to the reel.

[0012] In some specific embodiments of the present application, one end of the baffle away from the clamping plate is fixedly connected to the reel.

[0013] In some embodiments of the present application, a limiting hole is provided at one end of the slideway away from the storage box, and the limiting hole is adapted to the limiting bolt.

[0014] In some embodiments of the present application, a groove is provided on the upper end surface of the slideway.

[0015] In some embodiments of the present application, a special-shaped block is inserted into the groove, and one side of the upper end surface of the special-shaped block facing away from the storage box is designed as an inclined surface.

[0016] In some embodiments of the present application, a vertical rod is inserted and limited in the special-shaped block, and one end of the vertical rod away from the special-shaped block is fixedly connected to the inner bottom side of the groove.

[0017] In some embodiments of the present application, a first spring is provided at one end of the vertical rod inserted into the special-shaped block, and one end of the first spring abuts against the vertical rod.

[0018] In some embodiments of the present application, a locking mechanism is provided on one side of the storage box facing the watch case, and the locking mechanism is in limiting sliding fit with the chute.

[0019] In some embodiments of the present application, the locking mechanism includes a hanging plate, a connecting shaft and a pressing plate. The hanging plate is in limiting sliding fit with the chute. The connecting shaft is symmetrically fixed to the hanging plate. The connecting shaft slidably penetrates through the side wall of the box opening of the storage box. The pressing plate is fixed to the connecting shaft and is located inside the box opening of the storage box.

[0020] In some embodiments of the present application, a third spring is sleeved on one side of the connecting shaft located outside the storage box.

[0021] In some embodiments of the present application, a bolt is threadedly connected to the hanging plate, and the bolt is in threaded fit with the storage box.

[0022] In some embodiments of the present application, a pressing mechanism is provided on one side of the watch case where the storage box is provided. The pressing mechanism includes a positioning plate, a limiting rod, a fourth spring and a pushing plate. The positioning plate is laterally fixed to the watch case. The limiting rod is slidably inserted into the positioning plate. The fourth spring is sleeved on the limiting rod. The pushing plate is fixed to one end of the limiting rod sleeved with the fourth spring.

[0023] Additional aspects and advantages of the present application will be given in part in the following description, will become apparent in part from the following description, or will be understood through the practice of the present application.

[0024] During the use of the IC card water meter shell structure, it is inevitable that the upper surface of the baffle will be covered with an oil film due to the erosion of oil smoke. If it is not cleaned for a long time, the baffle and the box opening of the storage box will become sticky, making it impossible to store the baffle in the recycling box or difficult to store it in the recycling box. If the cleaning is performed directly on the meter case, it is difficult to clean because the specific position of the meter case may be disturbed by surrounding objects.

[0025] When the IC card water meter housing structure needs to clear the oil film on the baffle after long-term use, the pick plate is lifted upward to disengage the limit bolt from the limit hole, and after the card plate is moved to the special-shaped block and is blocked, the special-shaped block is pressed downward to make the card plate move along the slide to the box opening of the storage box (it should be noted that a gap is reserved between the end of the slide close to the storage box and the box opening of the storage box to facilitate the card plate to disengage from the slide), and then the storage box is moved upward to disengage the hanging plate from the limit outside the slide slot, and then the storage box is pulled outward. The storage box can be separated from the slide and taken out. The card plate at this time can be pulled to pull the contaminated part of the baffle out of the storage box. The bolt can be rotated to drive the retaining plate to press the baffle tightly against the box opening of the storage box to prevent the baffle from shifting. The contaminated part of the baffle can then be cleaned. After cleaning and wiping, the bolt can be rotated in the opposite direction to retract the baffle toward the storage box. At this time, the hanging plate is away from the storage box. The storage box is hung on the slide by utilizing the cooperation between the hanging plate and the slide, and then a limit can be formed between the limit bolt in the card plate and the limit hole on the slide.

[0026] In this IC card water meter housing structure, since the horizontal length of the slide is greater than the length of the hanging plate, the storage box will be unstable on the meter housing only by the limiting engagement between the hanging plate and the slide. During use, the storage box may fall off the meter housing, affecting the normal use of the baffle.

[0027] When using this IC card water meter shell structure, when installing the storage box, the push plate is squeezed toward the positioning plate. At this time, the fourth spring is squeezed. After the storage box is installed, the push plate will squeeze the storage box under the elastic force of the fourth spring until the storage box cannot be displaced in the slide groove. It can be understood that at this time, the box mouth of the storage box and the two slides are adapted to each other so that the baffle can slide normally in the slide groove, and the storage box squeezed by the push plate can be stably hung on the watch case under the lateral force brought by the push plate and the original limit card action of the slide groove, thereby avoiding the storage box from falling off from the watch case during use, which brings inconvenience to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] To more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation of the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0029] Figure 1 It is a schematic diagram of the overall structure of an IC card water meter housing structure according to an embodiment of the present application;

[0030] Figure 2 It is a schematic diagram of the internal structure of an IC card water meter housing structure according to an embodiment of the present application;

[0031] Figure 3 It is a schematic diagram of the structure of the meter body according to an embodiment of the present application;

[0032] Figure 4 It is an exploded view of the structure of the meter housing according to an embodiment of the present application;

[0033] Figure 5 It is a schematic diagram of the upper surface structure of the meter housing according to an embodiment of the present application;

[0034] Figure 6 It is a sectional view of the structure of the oil retaining mechanism according to an embodiment of the present application;

[0035] Figure 7 It is an exploded view of the partial structure of the oil retaining mechanism according to an embodiment of the present application;

[0036] Figure 8 It is an exploded view of the partial structure of the slideway and the clamping plate according to an embodiment of the present application;

[0037] Fig. 9 It is a schematic diagram of the two-state structure of the clamping plate according to an embodiment of the present application;

[0038] Figure 10 It is a schematic diagram of the structure of the locking mechanism according to an embodiment of the present application;

[0039] Fig.11 It is an exploded view of the structure of the locking mechanism according to an embodiment of the present application;

[0040] Figure 12 It is a schematic diagram of the position of the locking mechanism according to an embodiment of the present application;

[0041] Fig.13 It is a schematic diagram of the structure of the pressing mechanism according to an embodiment of the present application.

[0042] Icons: 1. Watch body; 2. Watch case; 201. Card slot; 202. Digital display window; 203. Mechanical display window; 204. Notch; 205. Slide; 21. Computer board; 22. IC card interface; 23. Digital display screen; 24. Battery; 3. Oil barrier; 31. Winding assembly; 311. Storage box; 312. Reel; 313. Spring; 314. Baffle; 32. Slide; 321. Limit hole; 322. Groove; 323. Special-shaped block; 32 4. Vertical pole; 325. First spring; 33. Clamping plate; 331. Moving cavity; 332. Vertical slot; 333. Clamping plate; 334. Sliding rod; 335. Second spring; 336. First connecting rod; 337. Second connecting rod; 338. Limit bolt; 4. Locking mechanism; 41. Hanging plate; 42. Connecting shaft; 43. Abutment plate; 44. Third spring; 45. Bolt; 5. Abutment mechanism; 51. Positioning plate; 52. Limiting rod; 53. Fourth spring; 54. Push plate. DETAILED DESCRIPTION

[0043] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0044] like Figures 1-13 As shown, an IC card water meter housing structure according to an embodiment of the present application includes a case 2, which is arranged on a meter body 1. The meter body 1 is used to measure the flow of water. A card insertion port 201, a digital display window 202 and a mechanical display window 203 are provided on the upper surface of the case 2. The mechanical display window 203 corresponds to the mechanical pointer position on the meter body 1, which is convenient for observing the indicated value of the mechanical pointer in the meter body 1. The mechanical display window 203 is embedded in the case 2 so that the mechanical display window 203 can be disassembled, which is convenient for cleaning the oil film on it. A computer board 21, an IC card interface 22, a digital display screen 23 and a battery 24 are provided in the case 2. The computer board 21 is arranged in the case 2, the IC card interface 22 is arranged on the computer board 21 and is adapted to the card insertion port 201, the digital display screen 23 is arranged on the computer board 21 and is adapted to the digital display window 202, and the battery 24 is arranged in the case 2 and is used to power the computer board 21.

[0045] Among them, the watch case 2 is provided with an oil retaining mechanism 3;

[0046] Further, the oil-blocking mechanism 3 includes a winding component 31, a slideway 32 and a clamping plate 33. The winding component 31 is arranged on one side of the watch case 2. A retaining piece 314 is elastically received in the winding component 31. The slideways 32 are symmetrically arranged and fixedly connected to the watch case 2. The retaining piece 314 is slidably connected to the slideway 32. The clamping plate 33 is slidably connected to the slideway 32, and the clamping plate 33 is fixedly connected to the retaining piece 314. Moving cavities 331 and vertical grooves 332 are symmetrically arranged in the clamping plate 33. A picking plate 333 is arranged at the upper end of the clamping plate 33. A sliding rod 334 is fixedly connected to the picking plate 333. The sliding rod 334 is limited and slidably inserted into the clamping plate 33. A second spring 335 is sleeved on the sliding rod 334. First connecting rods 336 are symmetrically and fixedly connected to the picking plate 333. The first connecting rods 336 are inserted into the clamping plate 33. One end of the first connecting rod 336 away from the picking plate 333 is hinged to a second connecting rod 337, and the shaft at the hinged part is slidably matched with the vertical groove 332. The second connecting rod 337 is arranged in the moving cavity 331. One end of the second connecting rod 337 away from the first connecting rod 336 is hinged to a limiting bolt 338. The limiting bolt 338 is horizontally limited and slidable in the clamping plate 33, and one end of the limiting bolt 338 away from the second connecting rod 337 is inserted and matched with the slideway 32.

[0047] It should be noted that the retaining piece 314 can be made of flexible steel material, which has a certain strength and a certain shape recovery ability, facilitating the formation of a fitting state with the slideway 32, reducing the gap between the two, and preventing oil fume from invading.

[0048] The following describes the use process of an IC card water meter housing structure according to an embodiment of the present application with reference to the accompanying drawings: By using the cooperation between the clamping plate 33 and the slideway, the retaining piece 314 elastically received in the winding component 31 is pulled out. When the IC card is not needed to be inserted, due to the elasticity of the second spring 335, the picking plate 333 is pressed against the clamping plate 33. At this time, the first connecting rod 336 displaces downward in the vertical groove 332, causing the top end of the second connecting rod 337 to displace downward. Since the length of the second connecting rod 337 remains unchanged, its bottom end drives the limiting bolt 338 to displace horizontally in the clamping plate 33 and form an insertion with the slideway 32, limiting the clamping plate 33, and then preventing the retaining piece 314 from retracting into the winding component 31 due to elasticity, so as to complete the shielding of the card insertion opening 201 and the digital display window 202, avoiding the erosion of the card insertion opening 201 and the digital display window 202 by oil fume. When the card insertion opening 201 needs to be used, the picking plate 333 is lifted upward, and the limiting bolt 338 is driven to displace backward through the first connecting rod 336 and the second connecting rod 337, so that the clamping plate 33 and the slideway 32 are disengaged from the limit, and then the retaining piece 314 can be retracted into the winding component 31, exposing the card insertion opening 201. The detachable design of the mechanical display window 203 facilitates observing the pointer reading in the watch body 1, and also facilitates disassembly for cleaning, avoiding too much oil stain on it and affecting normal observation.

[0049] In addition, the IC card water meter housing structure according to the embodiment of the present application also has the following additional technical features:

[0050] It should be noted that a notch 204 is provided on the upper surface of the watch case 2 , and the notch 204 is provided on one side of the mechanical display window 203 . The design of the notch 204 makes it easy to pick out the mechanical display window 203 .

[0051] Among them, the side of the watch case 2 where the winding component 31 is provided is provided with a slide 205, and the cross section of the slide 205 is inverted L-shaped, such as Figure 10 As shown, it should be noted that a protrusion is provided at the bottom end of the outer side of the sliding groove 205.

[0052] It should be noted that the winding assembly 31 includes a storage box 311, a reel 312 and a spring 313. The storage box 311 is arranged on the watch case 2, the reel 312 is inserted into the storage box 311, and the spring 313 is symmetrically sleeved on the reel 312. One end of the spring 313 is fixed to the storage box 311, and the other end of the spring 313 is fixed to the reel 312. It can be understood that the setting of the spring 313 enables the reel 312 to have elastic rotation ability.

[0053] Furthermore, one end of the blocking piece 314 away from the clamping plate 33 is fixed to the reel 312 .

[0054] It can be understood that when the opening baffle 314 is pulled out of the storage box 311 (not completely separated from the reel 312), the reel 312 rotates under the action of the baffle 314, which causes the spring 313 to elastically rewind. Conversely, under the elastic action of the spring 313, once the baffle 314 loses external force, the spring 313 will reset and drive the reel 312 to rotate, and then pull the baffle 314 back into the storage box 311 for rewinding.

[0055] Furthermore, a limiting hole 321 is provided at one end of the slide 32 away from the storage box 311, and the limiting hole 321 is adapted to the limiting bolt 338. By plugging the limiting bolt 338 and the limiting hole 321, the limiting bolt 338 can be limited, and then the clamping plate 33 can be limited. It can be understood that the blocking piece 314 is then limited, so as to prevent the spring 313 from losing external force and driving the reel 312 to rotate under the elastic reset action, causing the blocking piece 314 to be retracted into the storage box 311.

[0056] Specifically, a groove 322 is provided on the upper end surface of the slideway 32 .

[0057] Furthermore, a special-shaped block 323 is inserted into the groove 322 , and the upper end surface of the special-shaped block 323 facing away from the storage box 311 is designed to be inclined.

[0058] Furthermore, a vertical rod 324 is inserted and limited inside the special-shaped block 323, and one end of the vertical rod 324 away from the special-shaped block 323 is fixedly connected to the inner bottom side of the groove 322.

[0059] Furthermore, a first spring 325 is arranged at one end of the vertical rod 324 inserted into the special-shaped block 323, and one end of the first spring 325 abuts against the vertical rod 324.

[0060] It can be understood that when the clamping plate 33 displaces from the direction of the storage box 311 towards the direction of the limiting hole 321, due to the inclined surface design of the upper end surface of the special-shaped block 323, without additional operation, directly drag the clamping plate 33 to slide in the slideway 32 towards the direction of the limiting hole 321. When the clamping plate 33 abuts against the special-shaped block 323, it will force the special-shaped block 323 to displace into the groove 322 along the vertical rod 324 and squeeze the first spring 325. When the clamping plate 33 displaces past the special-shaped block 323, under the elastic action of the first spring 325, the special-shaped block 323 will reset and block the clamping plate 33 without external force squeezing the special-shaped block 323.

[0061] Thus, during normal use, when the IC card is not needed to be inserted, the elastic force of the second spring 335 is used to make the picking plate 333 stick to the clamping plate 33. At this time, the limiting bolt 338 displaces out of the clamping plate 33 and is inserted into the limiting hole 321, so that the baffle 314 cooperates with the clamping plate 33 and the slideway 32 to completely cover the card insertion port 201 and the digital display window 202. It should be noted that a rubber strip can be additionally arranged on the side of the clamping plate 33 facing the watch case 2, so that while forming a seal between the clamping plate 33 and the watch case 2, each time the clamping plate 33 displaces along the slideway 32, the covered area of the watch case 2 can be wiped. Similarly, when the IC card needs to be inserted, lift the picking plate 333 to drive the limiting bolt 338 to retract into the clamping plate 33. At this time, the hairspring 313 loses the external force restriction, and under its elastic reset action, it will drive the baffle 314 to wind into the storage box 311 through the reel 312 until the clamping plate 33 displaces to the special-shaped block 323 and is blocked by the special-shaped block 323. At this time, the clamping plate 33 stops displacing on the slideway 32 to avoid the clamping plate 33 displacing to the box opening of the storage box 311, which will bring unnecessary trouble during the actual use process (for the specific installation position of the watch body 1, there may be objects such as pots, pans, and bowls placed around it, or in order to save space, the distance between the watch body 1 and the cabinet or the cavity wall may be small. If the clamping plate 33 needs to be dragged from the box opening of the storage box 311 each time to make the baffle 314 block the card insertion port 201 and the digital display window 202, it will definitely be very inconvenient).

[0062] In the related art, during the use of the housing structure of an IC card water meter, it is inevitable that the upper surface of the baffle 314 will be covered with an oil film due to oil fume erosion. If it is not cleaned for a long time, the viscosity between the baffle 314 and the opening of the storage box 311 will be relatively large, resulting in the baffle 314 being unable to be stored in the storage box 311 or being difficult to be stored in the storage box 311. If it is directly cleaned on the watch case 2, it is not easy to clean because the specific position of the watch case 2 may be interfered by surrounding items.

[0063] According to some embodiments of the present application, as Figure 6-Figure 9 shown, a locking mechanism 4 is provided on one side of the storage box 311 facing the watch case 2, and the locking mechanism 4 is in limiting sliding fit with the sliding groove 205.

[0064] Among them, the locking mechanism 4 includes a hanging plate 41, a connecting shaft 42 and a pressing plate 43. The hanging plate 41 is in limiting sliding fit with the sliding groove 205. The connecting shafts 42 are symmetrically fixed to the hanging plate 41. The connecting shafts 42 slide through the side wall of the opening of the storage box 311, and the pressing plate 43 is fixed to the connecting shaft 42 and is located inside the opening of the storage box 311.

[0065] It should be noted that for the limiting sliding fit between the hanging plate 41 and the sliding groove 205, the outer heights of the hanging plate 41 and the sliding groove 205 are the same, but the inner and outer lengths of the sliding groove 205 are both greater than the length of the hanging plate 41, and the inner height of the sliding groove 205 is greater than the height of the hanging plate 41. Then it can be understood that after the hanging plate 41 is inserted from the outside of the sliding groove 205 to the inside and then moves downward, the bottom of the hanging plate 41 contacts the bottom of the inside of the sliding groove 205. At this time, the hanging plate 41 is limited by the bottom end of the outside of the sliding groove 205, and the hanging plate 41 completes the engagement with the sliding groove 205.

[0066] It can be understood that the pressing plate 43 and the hanging plate 41 are slidably connected to the storage box 311 through the connecting shaft 42, so that the pressing plate 43 and the hanging plate 41 can move along the axial direction of the connecting shaft 42 on the storage box 311.

[0067] Specifically, a third spring 44 is sleeved on one side of the connecting shaft 42 located outside the storage box 311. It can be understood that under the elastic action of the third spring 44, without external force, the pressing plate 43 will be close to the side of the storage box 311 close to the watch case 2.

[0068] Furthermore, a bolt 45 is threadedly connected to the hanging plate 41, and the bolt 45 is in threaded fit with the storage box 311. It can be understood that by rotating the bolt 45, the hanging plate 41 will move towards the storage box 311, and then the pressing plate 43 will squeeze the baffle 314, causing it to be tightly pressed against the other side of the opening of the storage box 311, limiting the baffle 314 and preventing it from being wound under the action of the spring 313.

[0069] It can be understood that when it is necessary to clean the oil film on the baffle 314 after the shell structure of the IC card water meter has been used for a long time, the picking plate 333 is lifted upward so that the limit bolt 338 is disengaged from the limit of the limit hole 321. After the clamping plate 33 is blocked when it moves to the special-shaped block 323, the special-shaped block 323 is pressed downward so that the clamping plate 33 moves along the slideway 32 to the mouth of the storage box 311 (it should be noted that there is a gap reserved between the end of the slideway 32 close to the storage box 311 and the mouth of the storage box 311 to facilitate the clamping plate 33 to disengage from the slideway 32). Then, the storage box 311 is moved upward so that the hanging plate 41 is disengaged from the limit outside the sliding groove 205. Then, the storage box 311 is pulled outward, and the storage box 311 can be disengaged from the sliding groove 205. The storage box 311 is taken out. The clamping plate 33 at this time is pulled, and the soiled part of the baffle 314 is pulled out of the storage box 311. By rotating the bolt 45, the pressing plate 43 is driven to press the baffle 314 tightly at the mouth of the storage box 311 to prevent the baffle 314 from shifting. Then, the soiled part of the baffle 314 is cleaned. After cleaning and wiping, the bolt 45 is rotated in the reverse direction to make the baffle 314 retract into the storage box 311. At this time, the hanging plate 41 is far away from the storage box 311. By using the cooperation between the hanging plate 41 and the sliding groove 205, the storage box 311 is hung on the sliding groove 205, and then the limit is formed between the limit bolt 338 in the clamping plate 33 and the limit hole 321 on the slideway 32.

[0070] In the related art, for the shell structure of the IC card water meter, because the transverse length of the sliding groove 205 is greater than the length of the hanging plate 41, relying only on the limit engagement between the hanging plate 41 and the sliding groove 205 will make the storage box 311 unstable on the meter shell 2, and it may cause the storage box 311 to fall off the meter shell 2 during use, affecting the normal use of the baffle 314.

[0071] According to some embodiments of the present application, as Figure 10-13 shown, on one side of the meter shell 2 where the storage box 311 is provided, a tightening mechanism 5 is provided. The tightening mechanism 5 includes a positioning plate 51, a limiting rod 52, a fourth spring 53 and a pushing plate 54. The positioning plate 51 is laterally fixed to the meter shell 2. The limiting rod 52 is slidably inserted into the positioning plate 51. The fourth spring 53 is sleeved on the limiting rod 52. The pushing plate 54 is fixedly connected to one end of the limiting rod 52 on which the fourth spring 53 is sleeved.

[0072] Therefore, it can be understood that when using the housing structure of the IC card water meter, when installing the storage box 311, the push plate 54 is squeezed towards the positioning plate 51. At this time, the fourth spring 53 is squeezed. After the storage box 311 is installed, under the elastic force of the fourth spring 53, the push plate 54 will squeeze the storage box 311 until the storage box 311 cannot move in the sliding groove 205. It can be understood that at this time, the box opening of the storage box 311 is adapted to the two sliding channels 32, so that the blocking piece 314 can slide normally in the sliding channel 32. The storage box 311 squeezed by the push plate 54 can be stably hung on the watch case 2 under the lateral force brought by the push plate 54 and the original limiting and engaging effect of the sliding groove 205, avoiding the storage box 311 falling off the watch case 2 during use and causing inconvenience in use.

[0073] It should be noted that the specific model specifications of the watch body 1, digital display window 202, mechanical display window 203, computer board 21, IC card interface 22, digital display screen 23, battery 24, hairspring 313, first spring 325, second spring 335, third spring 44 and fourth spring 53 need to be selected according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in the field, so it will not be elaborated in detail.

[0074] The above is only the preferred embodiment of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An outer shell structure of an IC card water meter, comprising a meter shell (2), the meter shell (2) is arranged on a meter body (1), an IC card slot (201), a digital display window (202) and a mechanical display window (203) are arranged on the upper surface of the meter shell (2), the mechanical display window (203) corresponds to a mechanical pointer part on the meter body (1), the mechanical display window (203) is embedded in the meter shell (2), a computer board (21), an IC card interface (22), a digital display screen (23) and a battery (24) are arranged in the meter shell (2), the computer board (21) is arranged in the meter shell (2), the IC card interface (22) is arranged on the computer board (21) and is adapted to the IC card slot (201), the digital display screen (23) is arranged on the computer board (21) and is adapted to the digital display window (202), the battery (24) is arranged in the meter shell (2) and is used to supply power to the computer board (21), and it is characterized in that: An oil blocking mechanism (3) is arranged on the meter shell (2); The oil blocking mechanism (3) comprises a winding component (31), a slideway (32) and a clamping plate (33), the winding component (31) is arranged on one side of the meter shell (2), a blocking piece (314) is elastically stored in the winding component (31), the slideways (32) are symmetrically arranged, the slideways (32) are fixedly connected to the meter shell (2), the blocking piece (314) is slidably connected to the slideways (32), the clamping plate (33) is slidably connected to the slideways (32), and the clamping plate (33) is fixedly connected to the blocking piece (314), moving cavities (331) and vertical grooves (332) are symmetrically arranged in the clamping plate (33), a picking plate (333) is arranged at the upper end of the clamping plate (33), a sliding rod (334) is fixedly connected to the picking plate (333), the sliding rod (334) is limited and slidably inserted into the clamping plate (33), a second spring (335) is sleeved on the sliding rod (334), first connecting rods (336) are symmetrically fixedly connected to the picking plate (333), the first connecting rods (336) are inserted into the clamping plate (33), a second connecting rod (337) is hinged to one end of the first connecting rod (336) away from the picking plate (333), and the shaft at the hinged part is slidably matched with the vertical groove (332), the second connecting rod (337) is arranged in the moving cavity (331), a limiting bolt (338) is hinged to one end of the second connecting rod (337) away from the first connecting rod (336), the limiting bolt (338) is horizontally limited and slidable in the clamping plate (33), and one end of the limiting bolt (338) away from the second connecting rod (337) is inserted and matched with the slideway (32); One side of the watch case (2) where the winding component (31) is provided is provided with a chute (205), and the cross-section of the chute (205) is in an inverted L shape; the winding component (31) includes a storage box (311), a reel (312) and a spring (313), the storage box (311) is arranged on the watch case (2), the reel (312) is inserted into the storage box (311), the spring (313) is symmetrically sleeved on the reel (312), and one end of the spring (313) is fixedly connected to the storage box (311), and the other end of the spring (313) is fixedly connected to the reel (312).

2. The IC card water meter housing structure according to claim 1, characterized in that: A notch (204) is provided on the upper surface of the watch case (2), and the notch (204) is arranged on one side of the mechanical display window (203).

3. The housing structure of an IC card water meter according to claim 1, characterized in that: One end of the baffle (314) away from the clamping plate (33) is fixedly connected to the reel (312).

4. The IC card water meter housing structure according to claim 1, characterized in that: A limiting hole (321) is provided at one end of the slideway (32) away from the storage box (311), and the limiting hole (321) is adapted to the limiting bolt (338).

5. The IC card water meter housing structure according to claim 1, characterized in that: A groove (322) is provided on the upper end surface of the slideway (32).

6. The IC card water meter housing structure according to claim 5, characterized in that: A special-shaped block (323) is inserted into the groove (322), and one side of the upper end surface of the special-shaped block (323) facing away from the storage box (311) is designed as an inclined surface.

7. The IC card water meter housing structure according to claim 6, characterized in that: A vertical rod (324) is inserted and limited in the special-shaped block (323), and one end of the vertical rod (324) away from the special-shaped block (323) is fixedly connected to the inner bottom side of the groove (322).

8. The housing structure of an IC card water meter according to claim 7, characterized in that: A first spring (325) is arranged at one end of the vertical rod (324) inserted into the special-shaped block (323), and one end of the first spring (325) abuts against the vertical rod (324).

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