Quick assembly structure for electronic timer
By designing a quick assembly structure for electronic timers, using the clamping and connection of positioning blocks and pressing plates, the problems of low assembly efficiency and loose parts of existing electronic timers are solved, and the effects of stable connection and rapid assembly are achieved.
Patent Information
- Application Number
- CN202422045431.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-22
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2034-08-22
AI Technical Summary
Existing electronic timers are inefficient during assembly, especially during mass production, and the position of the screw-free assembly structure is unstable, which can easily lead to loose internal parts.
A quick assembly structure is designed, including a positioning block and a pressing plate, which fixes the screen and the PCB board by a positioning block clamping between the PCB board and the first bump, and limits the position of the positioning block through the connection between the pressing plate and the cover plate to prevent loosening of the parts.
It realizes stable connection and rapid assembly of electronic timer parts, meeting the needs of mass production without the need for connecting parts such as screws or pins.
Smart Images
Figure CN222952602U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of electronic timing equipment, in particular to a quick assembly structure for an electronic timer. Background Art
[0002] Electronic timers are not only used as time measuring devices, but can also be used as impulse clocks or alarm clocks in people's lives. With the continuous updating and iteration of electronic timers, the structural improvement of electronic timers is an important technological breakthrough for manufacturing companies, because it can control the cost of producing electronic timers, thereby achieving greater profits.
[0003] However, most of the existing electronic timers need to be equipped with connecting parts such as screws and pins to achieve the connection between the various parts, and need to be assembled manually. The assembly structure used in the electronic timer of this structural type still has certain defects in the convenience of production and assembly, so that the production and assembly efficiency of the electronic timer is still low and cannot meet the needs of mass production. In order to solve this problem, some electronic timers using screw-free assembly structures have appeared on the market, that is, the connection of the electronic timer parts is achieved by using clips. Although this screw-free assembly structure can quickly realize the assembly of the electronic timer and help improve the production efficiency of the electronic timer, there are still some defects in the position maintenance of the clip. When the electronic timer is subjected to external force, its internal parts are prone to loosening. Utility Model Content
[0004] In view of the above technical deficiencies, the utility model provides a quick assembly structure which can make the assembly of an electronic timer simpler and faster.
[0005] In order to achieve the above object, the utility model is implemented through the following technical solutions:
[0006] The utility model discloses a quick assembly structure for an electronic timer, the quick assembly structure is arranged in a shell of the electronic timer to fix a screen and a PCB board, the back of the shell is matched with a cover plate, the quick assembly structure comprises a positioning block and a pressing plate, the inner wall of one side of the shell is provided with a plurality of first protrusions, the shell outside the first protrusion is provided with a screen and a PCB board in sequence from the outside to the inside of the shell, the positioning block is provided with a plurality of first matching grooves, the positioning block is arranged on one side of the PCB board through the matching between the first matching groove and the first protrusion, the inner walls on both sides of the cover plate are provided with first connecting columns, the pressing plate is provided with at least one connecting hole, the pressing plate is connected to the cover plate through the matching between the connecting hole and the first connecting column, one end of the pressing plate is provided with a convex plate, and when the end of the pressing plate is located on the outside of the PCB board, the convex plate is located in the shell space outside the movable direction of the positioning block.
[0007] Furthermore, a matching block is provided in the middle of the pressure plate, and a second matching groove for installing a push button switch is provided in the matching block. A second connecting column is provided on the inner wall of the middle of the cover plate. After the pressure plate is connected to the cover plate, the second connecting column is located on the outside of the second matching groove.
[0008] Furthermore, convex corners are provided at both ends of the pressure plate, and hook-shaped clamping plates are provided at both sides of the key cap on the key switch, and the ends of the clamping plates are clamped with the convex corners.
[0009] Furthermore, a convex column is provided at the end of the pressure plate close to the convex plate side, and the convex column is located on the outer side of the PCB board and the end away from the pressure plate abuts against the back of the screen.
[0010] Furthermore, the end surface of the first protrusion close to the PCB board is provided with a first rounded corner, and the wall surface of the positioning block outside the first matching groove is provided with a second rounded corner.
[0011] Furthermore, second protrusions are provided at the corners of the two shells located on the front side of the shell and away from the first protrusion side, a plurality of third protrusions are provided on the shell wall surface outside the second protrusions, and a third rounded corner is provided on the end face of the third protrusion, and one end of the screen is clamped between the second protrusion and the third protrusion.
[0012] Furthermore, the shell is provided with a plurality of snap-in seats on the inner walls around its back side, the snap-in seats are provided with a first snap-in groove at the end near the mating point between the cover plate and the shell, the edge of the cover plate is provided with an annular convex edge, and the cover plate is connected to the shell by snapping into the first snap-in groove through the convex edge.
[0013] Furthermore, both ends of the cover plate are provided with a clamping piece, the end of the clamping piece away from the cover plate is provided with an oblique angle, the middle of the clamping piece is provided with a second clamping groove, and the inside of the shell is provided with a clamping block that fits in the second clamping groove.
[0014] The beneficial effects of the utility model are:
[0015] The quick assembly structure fixes the position of the PCB board and the screen through a positioning block that is clamped between the PCB board and the first protrusion, thereby preventing the PCB board and the screen installed in the shell from loosening; after the matching cover plate is connected to the back of the shell, the protrusion connected to the pressure plate is in the movable direction of the positioning block, thereby limiting the position of the positioning block, preventing the position of the positioning block from moving, and further fixing the position of the PCB board and the screen; and the quick assembly structure does not need to use screws, pins, etc. to connect components, while achieving stable connection of components in the electronic timer, it also makes the assembly of the electronic timer simpler and faster, and can meet the assembly requirements of large-scale electronic timer production. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 The figure is an exploded view of the components of an electronic timer equipped with the quick assembly structure.
[0017] Figure 2 Schematic diagram of the structure when the positioning block fixes the screen and PCB board Figure 1 .
[0018] Figure 3 Schematic diagram of the structure when the positioning block fixes the screen and PCB board Figure 2 .
[0019] Figure 4 It is a schematic diagram of the structure when the cover plate is matched to the back of the shell.
[0020] Figure 5 Schematic diagram of the structure when the positioning block fixes the screen and PCB board Figure 3 .
[0021] Figure 6 This is a structural diagram of the positioning block.
[0022] Figure 7 It is a structural schematic diagram of the pressure plate.
[0023] Figure 8 It is a schematic diagram of the structure of the shell.
[0024] Fig. 9 This is a schematic diagram of the keycap after it is connected to the shell.
[0025] Fig.10 It is a schematic diagram of the structure of the cover plate.
[0026] In the figure, 1, positioning block; 11, first matching groove; 12, second fillet; 2, pressing plate; 21, connecting hole; 22, convex plate; 23, matching block; 231, second matching groove; 24, convex corner; 25, convex column; 3, shell; 31, first convex block; 311, first fillet; 32, second convex block; 33, third convex block; 331, third fillet; 34, snap-in seat; 341, first snap-in groove; 35, snap-in block; 4, screen; 5, PCB board; 6, cover plate; 61, first connecting column; 62, second connecting column; 63, convex edge; 64, snap-in piece; 641, bevel; 642, second snap-in groove; 7, key switch; 71, key cap; 72, snap-in plate. DETAILED DESCRIPTION
[0027] The utility model discloses a quick assembly structure for an electronic timer, such as Figures 1 to 10 As shown in combination, the quick assembly structure is arranged in the shell 3 of the electronic timer to fix the screen 4 and the PCB board 5, and the back of the shell 3 is matched with a cover plate 6. The quick assembly structure includes a positioning block 1 and a pressing plate 2. The inner wall of one side of the shell 3 is provided with a plurality of first protrusions 31. The screen 4 and the PCB board 5 are sequentially arranged in the shell 3 outside the first protrusion 31 from the outside to the inside of the shell 3. The positioning block 1 is provided with a plurality of first matching grooves 11. The positioning block 1 is arranged on one side of the PCB board 5 through the matching between the first matching grooves 11 and the first protrusions 31. The inner walls on both sides of the cover plate 6 are provided with first connecting columns 61. The pressing plate 2 is provided with at least one connecting hole 21. The pressing plate 2 is connected to the cover plate 6 through the matching between the connecting hole 21 and the first connecting column 61. One end of the pressing plate 2 is provided with a convex plate 22, and when the end of the pressing plate 2 is located on the outside of the PCB board 5, the convex plate 22 is located in the space of the shell 3 outside the movable direction of the positioning block 1.
[0028] It should be noted that when assembling the electronic timer with the quick assembly structure, the screen 4 and the PCB board 5 are first installed in sequence into the front of the shell 3, and then the positioning block 1 is installed into the shell 3 along the direction in which the matching groove matches the first protrusion 31. The positioning block 1 is located on one side of the PCB board 5, and the positioning block 1 is pressed against the PCB board 5, so that the screen 4 and the PCB board 5 are fixed; before installing the cover plate 6 to the back of the shell 3, it is necessary to connect the pressure plate 2 to the shell 3 along the direction in which the connecting hole 21 matches the first connecting column 61, and then install the cover plate 6 to the shell The back of the housing 3; during the process of installing the cover plate 6 to the back of the housing 3, the pressing plate 2 will move into the space of the housing 3 and finally move to the outside of the PCB board 5. When the end of the pressing plate 2 close to the convex plate 22 is located on the outside of the PCB board 5, the pressing plate 2 presses the PCB board 5 and the position of the convex plate 22 is located on the outside of the positioning block 1. At the same time, the position of the convex plate 22 is located in the movable direction of the positioning block 1, that is, on the path of movement when the positioning block 1 is disconnected from the first convex block 31, which makes it impossible for the positioning block 1 to be disconnected from the first convex block 31, thereby realizing the limitation of the positioning block 1.
[0029] From the above content, it can be known that the quick assembly structure fixes the position of the PCB board 5 and the screen 4 installed by the positioning block 1 clamped between the PCB board 5 and the first protrusion 31, thereby preventing the PCB board 5 and the screen 4 installed in the shell 3 from loosening; after the matching cover plate 6 is connected to the back of the shell 3, the protrusion 22 connected to the pressure plate 2 is in the movable direction of the positioning block 1, thereby limiting the position of the positioning block 1, preventing the position of the positioning block 1 from moving, and further fixing the position of the PCB board 5 and the screen 4; and the quick assembly structure does not need to use screws, pins, etc. to connect components, while achieving stable connection of components in the electronic timer, it also makes the assembly of the electronic timer simpler and faster, and can meet the assembly requirements of large-scale electronic timer production.
[0030] As a further preference of the above embodiment, Figure 4 As shown, a matching block 23 is provided in the middle of the pressure plate 2, and a second matching groove 231 for installing a push button switch 7 is provided in the matching block 23. A second connecting column 62 is provided on the inner wall of the middle of the cover plate 6. After the pressure plate 2 is connected to the cover plate 6, the second connecting column 62 is located on the outside of the second matching groove 231.
[0031] Among them, after the push switch 7 is installed into the matching groove on the pressure plate 2, and after the pressure plate 2 is connected to the cover plate 6, the position of the second connecting column 62 will be at the opening of the matching groove, thereby limiting the position of the push switch 7 in the matching groove, thereby maintaining the stability of the push switch 7 connected to the electronic timer.
[0032] Preferably, Fig. 9As shown, convex corners 24 are provided at both ends of the pressing plate 2 , and hook-shaped clamping plates 72 are provided at both sides of the key cap 71 on the key switch 7 , and the ends of the clamping plates 72 are clamped with the convex corners 24 .
[0033] Among them, after the keycap 71 on the push switch 7 is installed in the shell 3, the keycap 71 is connected to the pressure plate 2 through the clamping between the clamping plates 72 at both ends and the convex corners 24 on the two ends of the pressure plate 2, so that the position of the keycap 71 can be maintained after the electronic timer is assembled, avoiding the position displacement of the keycap 71 during the use of the electronic timer, and the functional stability of the key switch 7 controlled by the keycap 71 is higher.
[0034] As a further preference of the above embodiment, Figure 4 and Figure 7 As shown in the figure, a convex column 25 is provided at the end of the pressing plate 2 close to the convex plate 22 , and the convex column 25 is located outside the PCB board 5 and abuts against the back of the screen 4 at the end away from the pressing plate 2 .
[0035] Among them, when the cover plate 6 is installed on the back of the shell 3, the boss 25 will move to the position outside the PCB board 5 together with the pressure plate 2, and the position of the boss 25 has a certain effect on limiting the position of the PCB, and the end of the boss 25 away from the pressure plate 2 will be pressed on the back of the screen 4 after the electronic timer is assembled, thereby further fixing the position of the screen 4.
[0036] As a further preference of the above embodiment, Figure 5 , Figure 6 and Figure 8 As shown in the figure, the end surface of the first protrusion 31 close to the PCB board 5 is provided with a first rounded corner 311, and the wall surface of the positioning block 1 outside the first matching groove 11 is provided with a second rounded corner 12.
[0037] Among them, when the positioning block 1 is installed into the shell 3 along the direction of the matching groove and the first protrusion 31, the contact between the first rounded corner 311 and the second rounded corner 12 can make the first protrusion 31 more smoothly match into the matching groove on the positioning block 1, thereby avoiding the situation where the first protrusion 31 cannot enter the first matching groove 11 when the positioning block 1 is installed into the shell 3.
[0038] As a further preference of the above embodiment, Figure 3 and Figure 8 As shown in the combination, the corners of the two shells 3 located on the front side of the shell 3 and away from the first protrusion 31 are provided with a second protrusion 32, the wall surface of the shell 3 outside the second protrusion 32 is provided with a plurality of third protrusions 33, the end face of the third protrusion 33 is provided with a third rounded corner 331, and one end of the screen 4 is clamped between the second protrusion 32 and the third protrusion 33.
[0039] Among them, when the screen 4 is installed into the shell 3, one end of the screen 4 needs to be clamped between the second protrusion 32 and the third protrusion 33, so that the screen 4 is preliminarily fixed by the second protrusion 32 and the third protrusion 33, and the third rounded corner 331 can facilitate one end of the screen 4 to enter between the second protrusion 32 and the third protrusion 33 more smoothly, avoiding the situation that one end of the screen 4 conflicts with the second protrusion 32 or the third protrusion 33 when the screen 4 is installed in the shell 3 and cannot enter between the second protrusion 32 and the third protrusion 33.
[0040] As a further preference of the above embodiment, Figure 8 and Fig.10 As shown in the combination, the shell 3 is provided with a plurality of snap-in seats 34 on the inner walls around its back side, and the snap-in seats 34 are provided with a first snap-in groove 341 at the end near the joint between the cover plate 6 and the shell 3. The edge of the cover plate 6 is provided with an annular convex edge 63, and the cover plate 6 is snap-fitted into the first snap-in groove 341 through the convex edge 63 to achieve connection with the shell 3.
[0041] Among them, when the cover plate 6 is installed on the back side of the shell 3, the convex edge 63 is snapped into the first snap-in groove 341 of the snap-in seat 34, so that the cover plate 6 and the shell 3 can be connected. There is no need to use connecting parts such as screws and pins to achieve the installation of the cover plate 6 on the shell 3, and the operation is simple and convenient.
[0042] As a further preference of the above embodiment, Figure 8 and Fig.10 As shown in the combination, both ends of the cover plate 6 are provided with a clamping piece 64, the end of the clamping piece 64 away from the cover plate 6 is provided with an angled corner 641, the middle of the clamping piece 64 is provided with a second clamping groove 642, and the inside of the shell is provided with a clamping block 35 that fits in the second clamping groove 642.
[0043] In the process of installing the cover 6 to the back of the shell 3 along the direction of the second clamping groove 642 cooperating with the clamping block 35, the relative sliding of the bevel 641 at the end of the clamping piece 64 on both sides of the cover 6 and the inclined surface on the wedge-shaped clamping block 35 can make the cover 6 move toward the back of the shell 3 smoother, making the operation of installing the cover 6 to the back of the shell 3 more convenient and the matching position more accurate.
[0044] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.
Claims
1. A quick assembly structure for an electronic timer, which is arranged in a housing of the electronic timer to fix a screen and a PCB board, and a cover plate is provided on the back of the housing, characterized in that: The quick assembly structure includes a positioning block and a pressing plate, a plurality of first protrusions are provided on the inner wall of one side of the shell, a screen and a PCB board are provided in the shell outside the first protrusion in sequence from the outside to the inside of the shell, the positioning block is provided with a plurality of first matching grooves, the positioning block is arranged on one side of the PCB board through the matching between the first matching grooves and the first protrusions, the inner walls on both sides of the cover plate are provided with first connecting columns, the pressing plate is provided with at least one connecting hole, the pressing plate is connected to the cover plate through the matching between the connecting hole and the first connecting column, one end of the pressing plate is provided with a convex plate, and when the end of the pressing plate is located on the outside of the PCB board, the convex plate is located in the shell space outside the movable direction of the positioning block.
2. The rapid assembly structure according to claim 1, characterized in that: A matching block is provided in the middle of the pressure plate, and a second matching groove for installing a push button switch is provided in the matching block. A second connecting column is provided on the inner wall of the middle of the cover plate. After the pressure plate is connected to the cover plate, the second connecting column is located on the outside of the second matching groove.
3. The rapid assembly structure according to claim 2, characterized in that: Both ends of the pressing plate are provided with convex corners, and both sides of the key cap on the key switch are provided with hook-shaped clamping plates, and the ends of the clamping plates are clamped with the convex corners.
4. The rapid assembly structure according to claim 1, characterized in that: The end of the pressing plate close to the convex plate is provided with a convex column, and the end of the convex column located outside the PCB board and away from the pressing plate abuts against the back of the screen.
5. The rapid assembly structure according to claim 1, characterized in that: The end surface of the first protrusion close to the PCB board is provided with a first rounded corner, and the wall surface of the positioning block outside the first matching groove is provided with a second rounded corner.
6. The rapid assembly structure according to claim 1, characterized in that: The corners of the two shells located on the front side of the shell and away from the first protrusion are both provided with a second protrusion, the shell wall outside the second protrusion is provided with a plurality of third protrusions, the end faces of the third protrusions are provided with third rounded corners, and one end of the screen is clamped between the second protrusion and the third protrusion.
7. The rapid assembly structure according to claim 1, characterized in that: The shell is provided with a plurality of snap-fit seats on the inner walls around its back side, and a first snap-fit groove is provided at the end of the snap-fit seat near the mating point between the cover plate and the shell. The edge of the cover plate is provided with an annular convex edge, and the cover plate is connected to the shell by snapping into the first snap-fit groove through the convex edge.
8. The rapid assembly structure according to claim 1, characterized in that: Both ends of the cover plate are provided with clamping parts, the ends of the clamping parts away from the cover plate are provided with bevels, the middle part of the clamping parts is provided with a second clamping groove, and the inside of the shell is provided with a clamping block matched in the second clamping groove.