Elastic column type connecting structure of screen keyboard plate, display assembly and gas water heater

Abstract

The utility model discloses an elastic column type connecting structure of a screen keyboard plate, a display assembly and a gas water heater, and belongs to the technical field of household appliances. The connecting structure connects a keyboard plate to a keyboard plate back plate, and comprises a plurality of guide connecting pieces, each guide connecting piece comprises a back plate connecting part, a keyboard plate limiting part and a guide rod arranged between the back plate connecting part and the keyboard plate limiting part; a plurality of guide piece connecting parts are arranged on the keyboard plate back plate, and the guide piece connecting parts are connected with the back plate connecting parts; the elastic pieces are connected to the guide rods in a sleeving manner; the keyboard plate is provided with a plurality of guide piece mounting holes, the guide rods are sleeved with the guide piece mounting holes, and the guide piece mounting holes are located between the elastic piece and the keyboard plate limiting part; wherein the distribution position of the guide piece connecting part is matched with the distribution position of the guide piece mounting hole on the keyboard plate. The elastic column type connecting structure can be suitable for installation and connection of small-screen key boards, and the universality of products is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of household appliances, and in particular relates to an elastic columnar connection structure of a screen keypad, a display component and a gas water heater. Background Art

[0002] A gas water heater, also known as a gas water boiler, is a gas appliance that uses gas as fuel and transfers heat to cold water flowing through a heat exchanger through combustion heating to achieve the purpose of preparing hot water.

[0003] After sufficient market research, it was found that the effect of large-screen display meets the user characteristics of e-commerce consumers. Therefore, a display control screen on the surface shell has become the mainstream configuration of gas water heaters; however, from a product perspective, the price of the keypad is proportional to the corresponding screen size. In order to save costs, it is necessary to design a connection structure suitable for small-screen keypads based on the existing keypad backplane structure, while still being suitable for large-screen keypad connections, so as to expand the versatility of the product and meet the needs of consumers with different needs. Utility Model Content

[0004] In order to solve the above technical problems, the present application further improves the connection structure of the existing keypad back panel, so as to be applicable to the installation and connection of both small-screen and large-screen keypads, thereby improving the versatility of the product. One of the purposes of the present utility model is to provide an elastic columnar connection structure of a screen keypad, the second purpose is to provide a corresponding display assembly, and the third purpose is to provide a corresponding gas water heater.

[0005] The specific technical solutions are described below:

[0006] The elastic column connection structure of the screen keypad connects the keypad to the keypad back plate, and the connection structure includes:

[0007] A plurality of guide connecting members, wherein the guide connecting members include a back plate connecting portion, a key plate limiting portion, and a guide rod disposed between the back plate connecting portion and the key plate limiting portion;

[0008] A keypad back plate, on which a number of guide member connecting parts matching the number of the guide connecting parts are arranged, and the guide member connecting parts are connected to the back plate connecting parts;

[0009] A plurality of elastic members, the number of which matches the number of the guide connecting members, and the elastic members are sleeved on the guide rods;

[0010] A key plate, on which a number of guide member mounting holes matching the number of the guide connecting members are provided, the guide member mounting holes are sleeved on the guide rods and are located between the elastic member and the key plate limiting portion;

[0011] Wherein, the distribution positions of a plurality of the guide member connecting portions are matched with the distribution positions of a plurality of the guide member mounting holes on the key plate.

[0012] The small-screen keypad is thinner than the large-screen keypad. During assembly, the top surface of the keypad screen needs to be in close contact with the display component (usually glass). Therefore, when adapting the small-screen keypad, it is necessary to "raise" it so that after installation, it maintains the same keypad screen position as the large-screen keypad to ensure close contact with the display component.

[0013] Therefore, in the above technical solution, the keypad shape of the small screen is adapted, the keypad is connected to the keypad back plate by a guide connector, and the keypad is "raised" by setting the spacing between the keypad limiter and the keypad back plate to make up for the thickness difference between the small screen keypad and the large screen keypad, so that the small screen keypad can also be fitted with the display unit after installation. For small screen keypads of different thicknesses, the above spacing can be adjusted by replacing the guide connector, thereby improving the versatility of the product.

[0014] At the same time, the elastic member provides an elastic touch to the keypad, which can improve the control experience, and buffer the impact of external force on the keypad, thereby increasing the service life of the keypad.

[0015] Preferably, a plurality of the guide member connecting parts are evenly distributed on the key board back plate to form an evenly distributed connecting structure and connecting strength.

[0016] Preferably, the back plate connection part includes a rotating column and at least two hooks distributed around the rotating column, and correspondingly, the guide member connection part includes a block engaged with the hook, and the hooks and blocks have matching numbers. The guide connection member is assembled by engaging the hooks and the blocks.

[0017] Preferably, the radial cross-section of the swivel post is circular, and the block is provided with a swivel post limiting surface that is adapted to the circumferential outer contour of the swivel post. The swivel post limiting surfaces on at least two of the blocks constitute the positioning and limiting structure of the swivel post. During assembly, the swivel post is first placed between the limiting structures formed by the respective swivel post limiting surfaces, and then the swivel post is rotated so that the hook and the block are engaged. This assembly step is relatively simple.

[0018] Preferably, a clamping strip is provided at the end of the clamping hook, and correspondingly, a clamping slot is provided on the clamping surface of the clamping block, and the clamping strip is engaged in the clamping slot, and the engagement of the clamping strip and the clamping slot can further enhance the clamping strength.

[0019] Preferably, the card slot includes a guide surface, which fits with the outer side surface of the card strip and forms an inclined surface that gradually shrinks the card slot along the entry direction of the card strip, so as to guide the card strip into the card slot.

[0020] Preferably, the card slot includes a snap-fit ​​surface, which fits with the inner side surface of the card strip and forms a stop structure in the direction in which the card strip exits the card slot. Further preferably, the stop structure is a surface that interferes with the exit trajectory of the inner side surface of the card strip. In this technical solution, the snap-fit ​​surface blocks the card slot from being rotated out, so as to prevent the snap-fit ​​structure from loosening.

[0021] Preferably, a clearance gap is formed between the guide rod and the connecting portion of the back plate, and accordingly, one end of the clamping slot adjacent to the guide rod is sealed to form a sealing plate, and the sealing plate constitutes a hindering structure for the clamping strip to move along the axial extension direction of the guide rod, and the clearance gap enables the clamping strip to be accommodated in the clamping slot with the sealing plate, and the sealing plate prevents the guide connector from loosening in the axial direction of the guide rod;

[0022] In addition to preventing the guide rod from loosening in the axial direction, the connection structure of the sealing plate can also cooperate with the elastic member to enhance the clamping strength between the clamping strip and the clamping slot:

[0023] When the pressing action of operating the key panel compresses the elastic part, the elastic part applies a force to the back plate of the key panel, and the sealing plate on the back plate of the key panel together with the card slot presses the corresponding end face of the card strip, and the friction between the sealing plate and the end face of the card strip increases, and this friction force is the main force that hinders the mutual movement between the card strip and the card slot; when the key panel is not operated and the elastic part is released from compression, the elastic part presses the key panel against the limiting part of the key panel, and the limiting part of the key panel together with the card strip presses the corresponding end face of the sealing plate, and the friction between the card strip and the end face of the sealing plate increases, and this friction force is also the main force that hinders the mutual movement between the card strip and the card slot; that is, the connection structure of the sealing plate limits the loosening of the guide connecting part in the axial direction of the guide rod. At the same time, the sealing plate cooperates with the elastic part and the locking surface as a whole technical means to jointly enhance the clamping strength between the card slot and the card strip.

[0024] The display assembly connects the keypad to the keypad back panel through the connection structure described in any of the above technical solutions.

[0025] A gas water heater comprises a display assembly, wherein the display assembly comprises the connection structure described in any one of the above technical solutions.

[0026] In summary, the technical solution described in the utility model has the following main beneficial effects:

[0027] Compared with the prior art, the technical solution of the utility model makes up for the thickness difference between the small-screen keypad and the large-screen keypad, so that the small-screen keypad can also maintain mutual fit with the display component after installation, thereby improving the versatility of the product.

[0028] At the same time, the assembly operation of the guide connector is simple, while the clamping strength is guaranteed.

[0029] Further or more detailed beneficial effects will be described in detail in conjunction with specific examples in the specific implementation manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 Schematic diagram of thickness comparison between a large screen keypad and a small screen keypad, where H is the thickness of the large screen keypad, h is the thickness of the small screen keypad, and D1 is the thickness difference between the two;

[0031] Figure 2 is a schematic diagram of the mounting surface structure of the keypad back panel in the embodiment;

[0032] Figure 3 is a schematic diagram of the planar structure of the guide member connecting portion on the back plate of the keypad;

[0033] Figure 4 yes Figure 3 A magnified view of the structure of area A;

[0034] Figure 5 is a schematic diagram of the side cross-sectional structure of the back panel of the keypad in the embodiment;

[0035] Figure 6 yes Figure 5 A magnified view of the structure of area A;

[0036] Figure 7 is a schematic structural diagram of a guide connecting member in an embodiment;

[0037] Figure 8 yes Figure 7 A magnified view of the structure of area A;

[0038] Fig. 9 is a schematic diagram of the cross-sectional structure of the back plate connection portion of the guide connection member;

[0039] Fig.10 yes Fig. 9 A magnified view of the structure of area A;

[0040] Fig.11 is a schematic diagram of the mounting surface structure of the keypad connected to the keypad back plate in the embodiment;

[0041] Fig.12 is a schematic diagram of a side cross-sectional structure of a keypad connected to a keypad back panel in an embodiment;

[0042] Fig.13 yes Fig.12 A magnified view of the structure of area A;

[0043] Fig.14 It is a schematic diagram of the structure of the connection between the card hook and the card block.

[0044] Reference numerals:

[0045] 1-guide connector, 1-1-back plate connector, 1-11-swivel column, 1-12-hook, 1-13-clip strip, 1-131-outer side, 1-132-inner side, 1-2-button plate limiter, 1-3-guide rod, 1-4-gap, 2-elastic member;

[0046] b-keyboard back plate, b-1-guide connecting part, b-11-block, b-111-rotation column limiting surface, b-12-slot, b-121-guide surface, b-122-clamping surface, b-123-sealing plate;

[0047] c-keyboard, c-1-guide mounting hole. DETAILED DESCRIPTION

[0048] The present invention is further explained with reference to the following embodiments:

[0049] The core technical problem faced by the technical solution of the embodiment of the present application comes from the inventor's accurate understanding of the prior art. Therefore, how to provide an installation structure for a small-screen keypad to improve the versatility of the product is a technical problem that the inventor urgently needs to solve.

[0050] At the same time, how to enhance the strength of the connection structure is also a technical problem that the inventors are trying to solve simultaneously.

[0051] It should be noted that the embodiments do not constitute a limitation on the protection scope of the claims of the utility model. According to the technical concepts provided / proven by the embodiments, all technical solutions that can be reasonably anticipated by technical personnel in the relevant technical field should be included in the protection scope of the claims of the utility model.

[0052] The embodiments are described in detail as follows:

[0053] Example:

[0054] Under the premise that the keypad back panel b of the prior art can be installed with a keypad with a larger screen, it is necessary to design a connection structure of the keypad back panel b that can also be installed with a small-screen keypad c, so as to reduce product costs and meet the needs of various consumers. However, referring to the attached Figure 1The small-screen keypad c is thinner than the large-screen keypad. During assembly, the top surface of the screen of the keypad needs to be in close contact with the display component (a whole piece of glass in this embodiment). Therefore, when designing the installation structure of the small-screen keypad c, it is necessary to "raise" it so that after installation, it can maintain the same keypad screen position as the large-screen keypad to ensure close contact with the glass.

[0055] For this purpose, refer to the attached Figures 2-3 , 7 and 9, the elastic column type connection structure described in this embodiment is used to connect the small screen key board c to the key board back board b, and the connection structure includes:

[0056] Three evenly distributed guide connectors 1, each guide connector 1 comprises a back plate connecting portion 1-1, a key plate limiting portion 1-2 and a guide rod 1-3 arranged between the back plate connecting portion 1-1, and three elastic members 2, the elastic members 2 are springs, and the springs are sleeved on the guide rods 1-3;

[0057] Three guide connecting parts b-1 are provided on the back plate b of the key board, and are connected to the above-mentioned back plate connecting part 1-1 through these guide connecting parts b-1; three guide mounting holes c-1 are provided on the key board c, and the guide mounting holes c-1 are sleeved on the guide rod 1-3 and located between the spring and the key board limiting part 1-2.

[0058] The distribution positions of the three guide member connecting portions b-1 match the distribution positions of the three guide member mounting holes c-1 on the key plate c to achieve installation.

[0059] In this embodiment, the evenly distributed positions of the three guide connecting parts b-1 are adapted to the shape of the keypad c of the small screen, so that an evenly distributed connection structure and connection strength can be formed; and the keypad c is connected to the keypad back plate b by the guide connecting part 1, and the keypad c is "raised" by setting the spacing between the keypad limiting part 1-2 and the keypad back plate b, so as to make up for the thickness difference between the small screen keypad c and the large screen keypad, so that the small screen keypad c can also keep in close contact with the display after installation. For small screen keypads c with different thicknesses, the above spacing can be adjusted by replacing the guide connecting part 1, thereby improving the versatility of the product;

[0060] At the same time, the spring in this embodiment provides an elastic touch to the key panel c, which can improve the control experience, and buffer the impact of external force on the key panel c, thereby improving the service life of the key panel c.

[0061] The connection structure of the guide member connection part b-1 and the back plate connection part 1-1 in this embodiment is:

[0062] The backplane connecting part 1-1 includes a swivel column 1-11 and two hooks 1-12 distributed around the swivel column 1-11. Correspondingly, the guide connecting part b-1 includes two blocks b-11 engaged with the hooks 1-12. The guide connecting part 1 is assembled by engaging the hooks 1-12 and the blocks b-11.

[0063] In a preferred embodiment, reference Figures 3 to 7 , 9~14, the swivel post 1-11 is a cylinder, and its radial cross-section is circular. The block b-11 is provided with a swivel post limiting surface b-111 which is adapted to the circumferential outer contour of the swivel post 1-11. The swivel post limiting surfaces b-111 on the two blocks b-11 constitute the positioning and limiting structure of the swivel post 1-11. During assembly, the swivel post 1-11 is first placed between the limiting structures formed by the two swivel post limiting surfaces b-111, and then the swivel post 1-11 is rotated so that the hook 1-12 and the block b-11 are engaged. This assembly step is relatively simple.

[0064] In a preferred embodiment, a card strip 1-13 is provided at the end of the card hook 1-12, and correspondingly, a card slot b-12 is provided on the card connection surface of the card block b-11, and the card strip 1-13 is engaged and connected in the card slot b-12, and the engagement of the card strip 1-13 and the card slot b-12 can further enhance the card connection strength. Specifically, the card slot b-12 includes a guide surface b-121, and the guide surface b-121 is in contact with the outer side surface 1-131 of the card strip 1-13, and forms an inclined surface that makes the card slot b-12 gradually shrink along the entry direction of the card strip 1-13, so as to guide the card strip 1-13 to enter the card slot b-12;

[0065] The slot b-12 also includes a locking surface b-122, which is in contact with the inner side surface 1-132 of the card strip 1-13 and forms a stop structure in the direction in which the card strip 1-13 exits the slot b-12. The stop structure is a surface that interferes with the exit trajectory of the inner side surface 1-132 of the card strip 1-13. In this technical solution, the end of the locking surface b-122 close to the inside of the slot b-12 is slightly inclined in the direction of the rotation axis (for example, 5° in this embodiment) based on the rotation tangent direction of the inner side surface 1-132 of the card strip 1-13, so as to hinder the rotation of the slot b-12 and prevent the locking structure from loosening. The rotation of the locking surface b-122 requires a little force to insert the card strip 1-13 into the slot b-12.

[0066] In the preferred embodiment, please refer to the attached Figure 8A clearance gap 1-4 is formed between the guide rod 1-3 and the back plate connection part 1-1. Correspondingly, one end of the card slot b-12 adjacent to the guide rod 1-3 is sealed to form a sealing plate b-123. The sealing plate b-123 prevents the card strip 1-13 from jumping out along the axial direction of the guide rod 1-3. The clearance gap 1-4 enables the card strip 1-13 to be accommodated in the card slot b-12 with the sealing plate b-123. The sealing plate b-123 prevents the guide connector 1 from loosening in the axial direction of the guide rod 1-3.

[0067] In addition to preventing the guide rod 1-3 from loosening in the axial direction, the connection structure of the sealing plate b-123 can also cooperate with the spring to enhance the clamping strength between the clamping strip 1-13 and the clamping slot b-12:

[0068] When the pressing action of the keypad c compresses the spring, the spring applies a force to the keypad back plate b, and the keypad back plate b together with the sealing plate b-123 on the card slot b-12 presses the corresponding end face of the card strip 1-13, and the friction between the sealing plate b-123 and the end face of the card strip 1-13 increases. The friction is the main force to hinder the mutual movement between the card strip 1-13 and the card slot b-12; when the keypad c is not operated and the spring is released from compression, the spring presses the keypad c against the keypad limit part 1-2, and the keypad limit part 1-2 together with the card strip 1 -13 presses the corresponding end face of the closing plate b-123, and the friction force between the clamping strip 1-13 and the end face of the closing plate b-123 increases. The friction force is also the main force that hinders the mutual movement between the clamping strip 1-13 and the card slot b-12; that is, in this embodiment, the connection structure of the closing plate b-123 limits the loosening of the guide connecting member 1 in the axial direction of the guide rod 1-3. At the same time, the closing plate b-123 cooperates with the spring and the locking surface b-122 as a whole technical means to jointly enhance the clamping strength between the card slot b-12 and the clamping strip 1-13.

[0069] The embodiment also provides a display assembly, including a display component, a support plate, a key panel c and a key panel back panel b assembled in sequence, wherein the display component is a whole piece of glass, and the key panel c and the key panel back panel b are connected by the elastic column type connection structure described in any of the above embodiments.

[0070] The embodiment also provides a gas water heater, on the surface of which a display assembly is provided. The display assembly includes glass, a support plate, a key panel c and a key panel back panel b assembled in sequence. The key panel c and the key panel back panel b are connected via the oblique cap type connection structure described in any of the above embodiments.

[0071] In the description of this specification, the description with reference to the terms "embodiment", "basic embodiment", "preferred embodiment", "other embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0072] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.

[0073] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. An elastic column connection structure of a screen key panel, connecting the key panel (c) to the key panel back panel (b), characterized in that: The connection structure includes: A plurality of guide connecting members (1), wherein the guide connecting members (1) comprise a back plate connecting portion (1-1), a key plate limiting portion (1-2), and a guide rod (1-3) arranged between the back plate connecting portion (1-1) and the key plate limiting portion (1-2); A keypad back plate (b), on which a plurality of guide member connecting parts (b-1) matching the number of the guide connecting parts (1) are provided, and the guide member connecting parts (b-1) are connected to the back plate connecting parts (1-1); A plurality of elastic members (2), the number of the elastic members (2) matching the number of the guide connecting members (1), the elastic members (2) being sleeved on the guide rods (1-3); A key plate (c) is provided with a plurality of guide member mounting holes (c-1) whose number matches the guide connecting member (1), the guide member mounting holes (c-1) being sleeved on the guide rod (1-3) and located between the elastic member (2) and the key plate limiting portion (1-2); The distribution positions of the plurality of guide member connecting portions (b-1) are matched with the distribution positions of the plurality of guide member mounting holes (c-1) on the key plate (c).

2. The connection structure according to claim 1, characterized in that: A plurality of the guide member connecting parts (b-1) are evenly distributed on the key board back plate (b).

3. The connection structure according to claim 1, characterized in that: The back plate connection portion (1-1) comprises a rotating column (1-11) and at least two hooks (1-12) distributed in the circumference of the rotating column (1-11); correspondingly, the guide member connection portion (b-1) comprises a clamping block (b-11) clamped with the clamping hook (1-12); the clamping hook (1-12) and the clamping block (b-11) have matching numbers.

4. The connection structure according to claim 3, characterized in that: The radial cross section of the rotating column (1-11) is circular in shape, and the clamping block (b-11) is provided with a rotating column limiting surface (b-111) adapted to the circumferential outer contour of the rotating column (1-11), and at least two rotating column limiting surfaces (b-111) on the clamping blocks (b-11) constitute a positioning and limiting structure of the rotating column (1-11).

5. The connection structure according to claim 4, characterized in that: The end of the hook (1-12) is provided with a clamping strip (1-13), and correspondingly, the clamping surface of the clamping block (b-11) is provided with a clamping slot (b-12), and the clamping strip (1-13) is engaged and clamped in the clamping slot (b-12).

6. The connection structure according to claim 5, characterized in that: The card slot (b-12) comprises a guide surface (b-121), the guide surface (b-121) is in contact with an outer side surface (1-131) of the card strip (1-13), and forms an inclined surface that gradually contracts the card slot (b-12) along an entry direction of the card strip (1-13).

7. The connection structure according to claim 6, characterized in that: The card slot (b-12) comprises a card engaging surface (b-122), the card engaging surface (b-122) is in contact with an inner side surface (1-132) of the card strip (1-13), and forms a stop structure in the direction in which the card strip (1-13) exits the card slot (b-12).

8. The connection structure according to claim 7, characterized in that: The stop structure is a surface that interferes with the exit trajectory of the inner side surface (1-132) of the clamping strip (1-13).

9. The connection structure according to any one of claims 5 to 8, characterized in that: A clearance gap (1-4) is formed between the guide rod (1-3) and the back plate connecting portion (1-1); accordingly, one end of the clamping groove (b-12) adjacent to the guide rod (1-3) is sealed to form a sealing plate (b-123); the sealing plate (b-123) constitutes a structure that hinders the displacement of the clamping strip (1-13) along the axial extension direction of the guide rod (1-3).

10. A display assembly, characterized in that: The key panel (c) is connected to the key panel back panel (b) by means of the connection structure described in any one of claims 1 to 9.

11. Gas water heater, characterized in that: A display component is included, and the display component includes the connection structure described in any one of claims 1 to 9.

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