Single-riser call box

Abstract

The utility model relates to electronic equipment structure design technical field, the utility model discloses a single ladder calling box, include: casing, inside has the cavity for installing electrical component, metal panel is pasted with the front of casing and is fixed through the adhesion of adhesive, and the front of casing has at least one overflow glue hole with the corresponding position of metal panel, and overflow glue hole is linked together with the cavity, mounting bracket is jointed in the back of casing, the utility model provides a single ladder calling box, improves product one -time installation qualified rate, and the shell does not need extra polishing treatment, reduces production cost.

Description

Technical Field

[0001] This utility model relates to the field of electronic device structural design technology, specifically to a single-ladder summoning box. Background Technology

[0002] As a core component of the elevator control system, the connection process between the metal panel and the shell of the single elevator call box directly affects the product's reliability and aesthetics. In existing technologies, call boxes generally use a structure where the metal panel is directly bonded to the front of the plastic shell. However, this has a significant drawback: during the bonding process, excess adhesive easily overflows from the gap between the panel and the shell, leaving residue on the shell surface and affecting the product's appearance, requiring secondary manual cleaning. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model discloses a single-ladder calling box, which solves the problems of adhesive overflow and contamination of the shell surface, as well as low installation efficiency, through innovative structural design. It includes: The housing has an internal cavity for mounting electrical components; The metal panel is attached to the front of the housing and fixed by adhesive. The front of the housing has at least one overflow hole at the position corresponding to the metal panel, and the overflow hole is connected to the cavity. The mounting bracket snaps onto the back of the housing.

[0004] Furthermore, the housing comprises an inner shell forming the front and an outer shell forming the back, with an overflow hole formed on the inner shell.

[0005] Furthermore, the inner shell has multiple clips on the back edge, each clip has an overflow hole, and the outer shell has a slot for fitting the clips.

[0006] Furthermore, part of the snap fastener is located within the opening range of the overflow hole.

[0007] Furthermore, the electrical components include a display panel and control buttons. The control buttons are electrically connected to the circuit board of the display panel via wiring. The back of the inner shell is provided with a second latch, and the wiring is snapped into the second latch.

[0008] Furthermore, each of the two clips is also provided with an overflow hole, and at least a portion of the clip is located within the opening range of the overflow hole.

[0009] Furthermore, the second buckle is L-shaped, with one end located on the back of the inner shell corresponding to the side wall of the overflow hole, and the other end extending away from the back of the inner shell and located within the opening range of the overflow hole.

[0010] Furthermore, a slot is provided at the top of the housing, and a positioning plate is provided at the top of the mounting bracket, which is inserted into the slot.

[0011] Furthermore, wedge-shaped locking blocks are provided on both sides inside the outer casing, and wedge-shaped locking blocks are provided at both ends of the mounting bracket in the width direction to adapt to the wedge-shaped locking blocks.

[0012] Furthermore, the mounting bracket has a positioning plate at its bottom end, and a positioning block that cooperates with the positioning plate is provided at the bottom of the housing. The adjusting bolt is screwed into the positioning block from the bottom end of the housing and abuts against the positioning plate; the positioning block is embedded in the bottom of the housing.

[0013] Compared with the prior art, the present invention has the following advantages: (1) The single ladder calling box provided by this utility model can guide excess adhesive in real time by reserving an overflow hole in the shell, avoiding adhesive residue on the shell surface, significantly improving the uniformity of product appearance, and reducing manual cleaning process.

[0014] (2) The single ladder call box provided by this utility model adopts a structure design of the mounting bracket and the back of the shell being snapped together, replacing the traditional screw fixing method, avoiding the hidden dangers of equipment operation caused by loose screws. The operator only needs to push the mounting bracket into the snap-in position to complete the fixing, shortening the installation time. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a split view of the single-staircase summoning box of this utility model from the top perspective; Figure 2 This is a split view of the single-staircase summoning box of this utility model from a lower perspective; Figure 3 for Figure 2 Enlarged view of number A; Figure 4 This is a side view exploded view of the single-staircase summoning box of this utility model; Figure 5 This is a cross-sectional view of the single-staircase call box of this utility model; Figure 6 This is a schematic diagram of the back structure of the single-ladder summoning box of this utility model; Figure 7 This is a schematic diagram of the front structure of the single-ladder summoning box of this utility model.

[0017] In the diagram: 10. Housing; 11. Metal panel; 12. Glue overflow hole; 13. Mounting bracket; 14. Inner shell; 15. Outer shell; 16. Clip one; 17. Bayonet; 18. Display panel; 19. Control button; 20. Clip two; 21. Slot; 22. Positioning plate; 23. Wedge-shaped clip one; 24. Wedge-shaped clip two; 25. Positioning plate; 26. Positioning block. Detailed Implementation

[0018] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0019] Example: The present invention will now be further described with reference to the accompanying drawings.

[0020] like Figures 1 to 7 As shown, this embodiment provides a single-ladder summoning box, comprising: The housing 10 has an internal cavity for mounting electrical components; The metal panel 11 is attached to the front of the housing 10 and fixed by adhesive. The adhesive is a mixture of silicone and AB glue. The front of the housing 10 has at least one overflow hole 12 at the position corresponding to the metal panel 11. The overflow hole 12 is connected to the cavity. Mounting bracket 13 is snapped onto the back of housing 10.

[0021] The working principle and beneficial effects of the above technical solution are as follows: This utility model discloses a single-ladder call box. When the metal panel 11 is connected to the front of the housing 10 with adhesive, the overflowing adhesive flows along the gap between the panel and the housing under the action of gravity, and is guided to the internal cavity of the housing through the overflow hole 12, avoiding adhesive residue on the external surface. At the same time, the mounting bracket 13 is directly fixed to the back of the housing 10 by a snap-fit ​​structure, without the need for screws. The single-ladder call box provided by this utility model solves the problems of adhesive overflow and contamination of the housing surface and low installation efficiency in the prior art, improves the first-time installation qualification rate of the product, eliminates the need for additional polishing of the outer shell, and reduces production costs.

[0022] In one embodiment, the housing 10 comprises an inner shell 14 forming the front side and an outer shell 15 forming the back side, with an overflow hole 12 formed on the inner shell 14.

[0023] The working principle and beneficial effects of the above technical solution are as follows: The inner shell 14, as the structural layer that directly supports the metal panel 11, has adhesive overflow holes 12 formed on its surface that can precisely locate the adhesive overflow path. The outer shell 15 encloses the inner shell 14 to form a closed cavity, confining the overflowing adhesive within the cavity of the shell and preventing it from polluting the external environment. This split shell structure ensures the reliability of adhesive overflow diversion and improves the overall strength of the shell, avoiding the structural weakening problem caused by openings in traditional one-piece shells.

[0024] In one embodiment, the inner shell 14 has a plurality of snap fasteners 16 on the back edge, each snap fastener 16 having a corresponding glue overflow hole 12, and the outer shell 15 has a snap opening 17 adapted to the snap fasteners 16.

[0025] The working principle and beneficial effects of the above technical solution are as follows: The engagement of latch 16 and bayonet 17 enables the inner shell 14 and outer shell 15 to lock together quickly, while the overflow hole 12 located adjacent to latch 16 can simultaneously guide the small amount of overflow generated during shell assembly. This design allows the overflow of adhesive during shell assembly and the adhesive overflow from the metal panel bonding process to share the same drainage system, avoiding the formation of adhesive residue accumulation points at the shell boundary and ensuring that both the inner and outer surfaces of the shell remain clean.

[0026] In one embodiment, a portion of the snap-on 16 is located within the opening range of the adhesive overflow hole 12.

[0027] The beneficial effects of the above technical solution are as follows: The clip 16 can block some of the glue from entering the overflow hole, preventing the glue from flowing around in the cavity and contaminating electronic components.

[0028] In one embodiment, the electrical components include a display panel 18 and a control button 19. The control button 19 is electrically connected to the circuit board of the display panel 18 via wiring. The back of the inner shell 14 is provided with a second latch 20, and the wiring is snapped into the second latch 20.

[0029] The beneficial effects of the above technical solution are as follows: Clip 20 secures the wiring of control button 19 to the back of inner shell 14 in an orderly manner, preventing the wiring from shifting inside the shell and causing a short circuit. Additionally, the adhesive flowing into the cavity and contacting clip 20 further secures the wiring harness within clip 20.

[0030] In one embodiment, each snap fastener 20 is also provided with an overflow hole 12 at its position, and at least a portion of the snap fastener 20 is located within the opening range of the overflow hole 12.

[0031] In one embodiment, the second buckle 20 is L-shaped, with one end located on the back of the inner shell 14 corresponding to the side wall of the overflow hole 12, and the other end extending away from the back of the inner shell 14 and located within the opening range of the overflow hole 12.

[0032] The working principle and beneficial effects of the above technical solution are as follows: Clip 20 can block some of the glue from entering the overflow hole, preventing the glue from flowing erratically in the cavity and contaminating electronic components.

[0033] In one embodiment, the top of the housing 15 is provided with a slot 21, and the top of the mounting bracket 13 is provided with a positioning plate 22, which is inserted into the slot 21.

[0034] The working principle and beneficial effects of the above technical solution are as follows: The insertion structure of the positioning plate 22 and the slot 21 forms a top limit, allowing the mounting bracket 13 to automatically align with the central axis of the housing during the snap-fit ​​process. This eliminates horizontal offset during installation, ensures that the mounting bracket 13 is subjected to uniform force, avoids housing deformation caused by unilateral force, and extends the service life of the equipment.

[0035] In one embodiment, the housing 15 has wedge-shaped locking blocks 23 on both sides, and the mounting bracket 13 has wedge-shaped locking blocks 24 adapted to the wedge-shaped locking blocks 23 at both ends in the width direction.

[0036] The working principle and beneficial effects of the above technical solution are as follows: The inclined surfaces of wedge-shaped locking block 1 23 and wedge-shaped locking block 24 engage to generate a self-locking force when the mounting bracket 13 is pushed in. When the mounting bracket 13 slides toward the back of the housing 10, the wedge structure converts the thrust into a compressive force perpendicular to the housing, so that the mounting bracket 13 can be stably fixed without additional locking.

[0037] In one embodiment, the mounting bracket 13 is provided with a positioning plate 25 at its bottom end, and the bottom of the housing 15 is provided with a positioning block 26 that is positioned in conjunction with the positioning plate 25. An adjusting bolt is screwed into the positioning block 26 from the bottom end of the housing 15 and abuts against the positioning plate 25. The positioning block 26 is embedded in the bottom of the housing 15.

[0038] The working principle and beneficial effects of the above technical solution are as follows: The positioning plate 25 and the positioning block 26 form a bottom support. After the adjusting bolts are tightened on the positioning plate 25, the fit between the mounting bracket 13 and the housing 10 can be finely adjusted. This structure effectively compensates for manufacturing tolerances, ensuring that the mounting bracket 13 and the back of the housing 10 are completely fitted together, avoiding equipment vibration caused by gaps. At the same time, the adjusting bolts provide preload, further enhancing the vibration resistance of the snap-fit ​​structure, enabling the call box to work stably in the vibration environment of the elevator shaft.

[0039] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A single-ladder summoning box, characterized in that, include: The housing (10) has an internal cavity for mounting electrical components; The metal panel (11) is attached to the front of the housing (10) and fixed by adhesive. The front of the housing (10) has at least one overflow hole (12) at the position corresponding to the metal panel (11), and the overflow hole (12) is connected to the cavity. Mounting bracket (13) is snapped onto the back of the housing (10).

2. The single-ladder summoning box according to claim 1, characterized in that, The housing (10) comprises an inner shell (14) forming the front and an outer shell (15) forming the back, and the overflow hole (12) is formed on the inner shell (14).

3. A single-ladder summoning box according to claim 2, characterized in that, The inner shell (14) has multiple buckles (16) on the back edge, and each buckle (16) has an overflow hole (12) corresponding to its position. The outer shell (15) has a slot (17) adapted to the buckle (16).

4. A single-ladder summoning box according to claim 3, characterized in that, The portion of the buckle (16) is located within the opening range of the overflow hole (12).

5. A single-ladder summoning box according to claim 3, characterized in that, The electrical components include a display panel (18) and a control button (19). The control button (19) is electrically connected to the circuit board of the display panel (18) via wiring. The back of the inner shell (14) is provided with a second buckle (20), and the wiring is snapped into the second buckle (20).

6. A single-ladder summoning box according to claim 5, characterized in that, Each of the two snap fasteners (20) is also provided with an overflow hole (12), and at least a portion of the two snap fasteners (20) is located within the opening range of the overflow hole (12).

7. A single-ladder summoning box according to claim 6, characterized in that, The second buckle (20) is L-shaped, with one end located on the back of the inner shell (14) corresponding to the side wall of the overflow hole (12), and the other end extending away from the back of the inner shell (14) and located within the opening range of the overflow hole (12).

8. A single-ladder summoning box according to claim 2, characterized in that, The top of the housing (15) is provided with a slot (21), and the top of the mounting bracket (13) is provided with a positioning plate (22), which is inserted into the slot (21).

9. A single-ladder summoning box according to claim 2, characterized in that, The outer shell (15) has a wedge-shaped locking block 1 (23) on both sides inside, and the mounting bracket (13) has a wedge-shaped locking block 2 (24) at both ends in the width direction that is adapted to the wedge-shaped locking block 1 (23).

10. A single-ladder summoning box according to claim 2, characterized in that, The mounting bracket (13) has a positioning plate (25) at its bottom end. The bottom of the outer shell (15) has a positioning block (26) that is positioned in conjunction with the positioning plate (25). The adjusting bolt is screwed into the positioning block (26) from the bottom end of the outer shell (15) and abuts against the positioning plate (25). The positioning block (26) is embedded in the bottom of the outer shell (15).

Images