Battery leakproof structure of carbon monoxide alarm
By setting a leak detection strip and a snap-fit block structure on the main body of the alarm, the problem of missing batteries is solved, enabling intuitive detection of battery installation and reducing the labor intensity of workers.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU DEHENG INTELLIGENT ELECTRICAL APPLIANCES CO LTD
- Filing Date
- 2025-08-20
- Publication Date
- 2026-07-10
AI Technical Summary
Existing carbon monoxide alarms are prone to battery leakage, causing them to malfunction. Furthermore, confirming whether the battery is installed requires disassembling the battery compartment cover, increasing the workload for workers.
A leak detection strip is installed on the main body of the alarm. The elastic deformation blocking part and rib part, together with the snap block and slot structure, ensure that the cover can be properly fixed after the battery is installed. The battery can be visually judged through the observation port.
It enables intuitive inspection of battery installation, reduces the labor intensity of workers, and ensures that the alarm works properly.
Smart Images

Figure CN224480746U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of carbon monoxide alarms, specifically relating to a battery leak-proof structure for a carbon monoxide alarm. Background Technology
[0002] An alarm is an electronic device that uses sound, light, air pressure, or other means to alert or warn us to take certain actions in order to prevent or mitigate the consequences of an event. It is powered by a battery.
[0003] In existing technologies, carbon monoxide alarms are usually powered by batteries, which are typically installed in the device's battery compartment to provide power. However, the battery compartment can be closed normally even without batteries, which can easily lead to batteries being missing, thus preventing the carbon monoxide alarm from functioning properly.
[0004] When it is necessary to confirm whether there are batteries in the battery compartment, workers need to remove the battery compartment cover to confirm before reinstalling it, which increases the labor intensity of the workers. Utility Model Content
[0005] To overcome the shortcomings of existing technologies, this utility model provides a battery leak-proof structure for a carbon monoxide alarm, thereby solving the technical problem that existing carbon monoxide alarms make it difficult to intuitively determine whether a battery is installed in the battery compartment.
[0006] To achieve the above objectives, the specific technical solution of this utility model is as follows:
[0007] A battery leak-proof structure for a carbon monoxide alarm includes an alarm cover, an alarm body, and a leak-proof detection strip. The alarm body has a battery mounting slot. A snap-fit block is provided on the bottom surface of the alarm cover. The alarm body has a locking groove that mates with the snap-fit block, allowing the alarm cover to be fixed to the alarm body.
[0008] A detection groove is formed on the side wall of the battery mounting slot. A leak-proof detection strip is set inside the detection groove, and its tail end is fixed to the edge of the groove opening. The top of the leak-proof detection strip is higher than the opening of the battery mounting slot, and it can undergo elastic deformation under external force, so that the top of the leak-proof detection strip is lower than the opening of the mounting slot.
[0009] Furthermore, the leak-proof detection strip is divided into an outer blocking portion and a rib portion disposed on the inner side of the blocking portion. In the initial state, the top of the blocking portion is higher than the opening of the battery mounting slot.
[0010] Furthermore, the top of the rib portion is provided with a guide slope.
[0011] Furthermore, a partition strip is provided in the middle of the battery mounting slot, dividing the battery installation into two independent battery slots, each for installing two batteries. There are two leak-proof detection strips, one on each side wall of the battery mounting slot in the alarm body.
[0012] Furthermore, the snap-fit block on the alarm cover is L-shaped.
[0013] Furthermore, the alarm cover is divided into an upper connecting part and a lower snap-fit part. The slot on the alarm body is divided into an embedded part and a fixing part that cooperate with the snap-fit part. The slot width of the embedded part is greater than or equal to the width of the snap-fit part. The edge of the slot of the fixing part extends inward, forming a locking edge at the slot of the fixing part that is smaller than the width of the snap-fit part but larger than the width of the connecting part.
[0014] Furthermore, the snap-fit block is made of plastic. A limiting protrusion is provided on the top surface of the snap-fit portion of the snap-fit block. A limiting groove, which mates with the limiting protrusion, is provided on the bottom surface of the snap-fit edge in the snap-fit groove.
[0015] Furthermore, the inner end of the latching part is provided with a limiting end face, which can cooperate with the locking edge to limit the extreme position of the sliding of the alarm cover plate.
[0016] Compared with the prior art, the present invention has the following advantages:
[0017] This invention features a leak detection strip on the alarm body. Initially, the top of the leak detection strip is higher than the battery mounting slot opening, causing the alarm cover to detach due to installation difficulties. When the battery is installed, the strip is lower than the battery mounting slot opening, allowing the alarm cover to be securely fastened to the alarm body. This enables workers to visually determine whether a battery is installed on the alarm body, ensuring normal alarm operation while reducing worker workload. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the structure of the main body of the alarm device in this utility model;
[0020] Figure 3 This is a schematic diagram of the leak-proof detection strip in this utility model. Figure 2 (Enlarged view of part A in the middle)
[0021] Figure 4 This is a schematic diagram of the leak detection strip in the absence of a battery in this utility model.
[0022] Figure 5 This is a schematic diagram of the structure of the alarm cover plate in this utility model;
[0023] Figure 6 This is a schematic diagram of the structure of the card connector block in this utility model. Figure 5 (Enlarged view of part B in the middle section)
[0024] Figure 7 This is a schematic diagram of the card slot structure in this utility model.
[0025] Reference numerals in the attached drawings: 1. Alarm cover plate; 2. Alarm body; 3. Leakage detection strip; 4. Snap-fit block; 5. Snap-fit groove; 6. Blocking part; 7. Rib part; 8. Guide slope; 9. Spacer bar; 10. Connecting part; 11. Snap-fit part; 12. Embedded part; 13. Fixing part; 14. Limiting protrusion; 15. Limiting end face. Detailed Implementation
[0026] In the description of this utility model, it should be understood that the terms "one end", "the other end", "outer side", "upper side", "inner side", "horizontal", "coaxial", "center", "end", "length", "outer end", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0027] The present invention will be further described below with reference to the accompanying drawings.
[0028] like Figure 1 and 2 As shown, a battery leak-proof structure for a carbon monoxide alarm includes an alarm cover plate 1, an alarm body 2, and a leak-proof detection strip 3. The alarm body 2 has a battery mounting slot for installing a battery. Two snap-fit blocks 4 are symmetrically arranged on the bottom surface of the alarm cover plate 1. The alarm body 2 has a snap-fit groove 5 that cooperates with the snap-fit blocks 4, allowing the alarm cover plate 1 to be fixed to the alarm body 2, thereby sealing the opening of the battery mounting slot.
[0029] A detection groove is formed on the side wall of the battery mounting slot. A leak-proof detection strip 3 is installed inside the detection groove, with its tail end fixed to the edge of the groove opening. The top of the leak-proof detection strip 3 is higher than the opening of the battery mounting slot and can undergo elastic deformation under external force. The depth of the detection groove is greater than the thickness of the leak-proof detection strip 3, providing space for its deformation. When a battery is installed in the battery mounting slot, the leak-proof detection strip 3 deforms under the pressure of the battery. The top of the leak-proof detection strip 3 is lower than or flush with the opening of the battery mounting slot, allowing the alarm cover 1 to slide smoothly on the alarm body 2. The snap-fit block 4 on the alarm cover 1 can be smoothly inserted into the corresponding snap-fit slot 5, thus securing the alarm cover 1.
[0030] The specific structure is as follows: Figure 2 , 3 As shown in Figure 4, the leak detection strip 3 consists of an outer blocking part 6 and a rib part 7 located inside the blocking part 6. Initially, the top of the blocking part 6 is higher than the opening of the battery mounting slot. The sliding of the alarm cover 1 on the alarm body 2 is blocked by the blocking part 6, making sliding installation difficult. When the user installs a battery into the battery mounting slot, the battery will abut against the rib part 7, and the rib part 7 will cause the blocking part 6 to deform outwards. The top of the blocking part 6 gradually decreases during deformation. When the battery is fully inserted into the battery slot, the top of the blocking part 6 is lower than the opening of the battery mounting slot, allowing the alarm cover 1 to be smoothly installed on the alarm body 2.
[0031] In this embodiment, the top of the rib portion 7 is provided with a guide slope 8, so that the battery can be smoothly installed into the battery mounting slot.
[0032] Furthermore, a partition 9 is provided in the middle of the battery mounting slot, dividing the battery installation into two independent battery slots, each for installing two batteries. There are two leak detection strips 3, which are respectively set on the two side walls of the battery mounting slot in the alarm body 2, and are used to detect the installation status of the two batteries.
[0033] like Figure 5 , 6 As shown in Figure 7, the latching block 4 on the alarm cover 1 is L-shaped and consists of an upper connecting part 10 and a lower latching part 11. The slot 5 on the alarm body 2 is divided into an embedded part 12 that mates with the latching part 11 and a fixing part 13. The width of the slot of the embedded part 12 is greater than or equal to the width of the latching part 11. The edge of the slot of the fixing part 13 extends inward, forming a locking edge at the slot of the fixing part 13 that is smaller than the width of the latching part 11 but larger than the width of the connecting part 10. When the alarm cover 1 is slidably installed, the latching part 11 of the latching block 4 preferentially inserts into the embedded part 12 of the slot 5, and after the alarm cover 1 slides, it is restricted by the locking edge, preventing the alarm cover 1 from falling off in the vertical direction.
[0034] Furthermore, the latching block 4 is made of plastic. A limiting protrusion 14 is provided on the top surface of the latching part 11 in the latching block 4. A limiting groove that mates with the limiting protrusion 14 is provided on the bottom surface of the locking edge in the latching groove 5. When the alarm cover 1 slides inward, the limiting protrusion 14 on the latching part 11 abuts against the locking edge and undergoes elastic deformation. When the alarm cover 1 slides inward to its limit position, the limiting protrusion 14 aligns with the limiting groove, the limiting protrusion 14 resets, and embeds into the limiting groove, thus limiting the horizontal position of the alarm cover 1.
[0035] In this embodiment, the inner end of the snap-fit part 11 is provided with a limiting end face 15, which can cooperate with the snap-fit edge to limit the extreme position of the sliding of the alarm cover plate 1.
[0036] Furthermore, the alarm cover 1 has multiple observation ports to make it easier for users to know whether a battery is installed in the battery mounting slot.
[0037] This utility model provides a non-essential technical feature: the alarm body and the leak detection strip are integrally formed and both are made of plastic.
[0038] The working principle of this utility model is as follows:
[0039] In the initial state, when no battery is installed in the battery mounting slot, the top of the blocking part 6 in the leak detection strip 3 is higher than the opening of the battery mounting slot. The sliding of the alarm cover 1 on the alarm body 2 is blocked by the blocking part 6, making sliding installation difficult. In this state, when the worker flips the alarm body 2, the alarm cover 1 will detach from the alarm body 2, allowing the worker to directly see that no battery is installed in the battery mounting slot.
[0040] When the worker installs the battery into the battery mounting slot, the battery will abut against the rib portion 7, and the rib portion 7 will cause the blocking portion 6 to deform outward. The top of the blocking portion 6 gradually decreases during the deformation process. When the battery is fully installed in the battery slot, the top of the blocking portion 6 is lower than the opening of the battery mounting slot. The alarm cover 1 can slide smoothly on the alarm body 2, completing the snap-fit engagement between the snap-fit block and the snap-fit slot, thus fixing the alarm cover 1 to the alarm body 2.
[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. A battery leak-proof structure for a carbon monoxide alarm, comprising an alarm cover (1) and an alarm body (2); the alarm body (2) has a battery mounting groove; a snap-fit block (4) is provided on the bottom surface of the alarm cover; the alarm body (2) has a snap-fit groove (5) that cooperates with the snap-fit block (4), which can cooperate with the snap-fit block (4) to fix the alarm cover (1) onto the alarm body (2), characterized in that: It also includes a leak detection strip (3); The side wall of the battery mounting slot is provided with a detection slot; the leak detection strip (3) is set in the detection slot and its tail end is fixed to the edge of the slot opening; the top of the leak detection strip (3) is higher than the slot opening of the battery mounting slot and can undergo elastic deformation under external force, so that the top of the leak detection strip (3) is lower than the slot opening of the mounting slot.
2. The battery leakage prevention structure for a carbon monoxide alarm according to claim 1, characterized in that: The leak detection strip (3) is divided into an outer blocking part (6) and a rib part (7) provided on the inner side of the blocking part (6); in the initial state, the top of the blocking part (6) is higher than the opening of the battery mounting slot.
3. The battery leakage prevention structure for a carbon monoxide alarm according to claim 2, characterized in that: The top of the rib portion (7) is provided with a guide slope (8).
4. The battery leakage prevention structure for a carbon monoxide alarm according to claim 1, characterized in that: The battery mounting slot is provided with a partition strip (9) in the middle, which divides the battery installation into two independent battery slots, which are used to install two batteries respectively; there are two leak detection strips (3), which are respectively set on the two side walls of the battery mounting slot in the alarm body (2).
5. The battery leakage prevention structure for a carbon monoxide alarm according to claim 1, characterized in that: The latching block (4) on the alarm cover (1) is L-shaped.
6. The battery leakage prevention structure for a carbon monoxide alarm according to claim 5, characterized in that: The alarm cover plate (1) is divided into an upper connecting part (10) and a lower snap-fit part (11); the slot (5) on the alarm body (2) is divided into an embedded part (12) and a fixing part (13) that cooperate with the snap-fit part (11); the slot width of the embedded part (12) is greater than or equal to the width of the snap-fit part (11); the edge of the slot of the fixing part (13) extends inward, so that the slot of the fixing part (13) forms a snap-fit edge that is smaller than the width of the snap-fit part (11) and larger than the width of the connecting part (10).
7. The battery leakage prevention structure for a carbon monoxide alarm according to claim 6, characterized in that: The snap-fit block (4) is made of plastic; a limiting protrusion (14) is provided on the top surface of the snap-fit part (11) in the snap-fit block (4); a limiting groove that cooperates with the limiting protrusion (14) is provided on the bottom surface of the snap-fit edge in the slot (5).
8. The battery leakage prevention structure for a carbon monoxide alarm according to claim 6, characterized in that: The inner end of the snap-fit part (11) is provided with a limiting end face (15), which can cooperate with the snap-fit edge to limit the sliding limit position of the alarm cover plate (1).