Defibrillator
By using a combination of locking holes and threaded connections in the defibrillator, the number of screws is reduced, solving the problem of cumbersome fastening of the cover and housing, and achieving a more reliable fastening effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO DAVID MEDICAL DEVICE CO LTD
- Filing Date
- 2025-08-08
- Publication Date
- 2026-07-24
AI Technical Summary
The current defibrillator requires multiple screws to secure the cover to the housing, making the fixing process cumbersome and inconvenient.
The method of using a combination of locking holes and locking blocks replaces some of the screws for fixing, and combined with threaded connections, reduces the number of screws. The assembly reliability is improved by using limiting plates and reinforcing ribs.
It simplifies the process of fixing the cover to the housing, improves assembly reliability and fastening effect, and avoids the inconvenience caused by too many screws.
Smart Images

Figure CN224540805U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical emergency equipment technology, and more specifically, to a defibrillator. Background Technology
[0002] A defibrillator is a medical device that uses a strong pulse of current to pass through the heart to eliminate arrhythmias and restore sinus rhythm. It is an essential emergency device in all departments of a hospital. Currently, most defibrillators on the market are equipped with a large-capacity capacitor, which is pressed against the inner wall of the defibrillator housing by a fastening cover. However, in the existing defibrillator structure, the fastening cover is fixed to the inner wall of the housing by a number of circumferentially spaced screws. That is, each side of the fastening cover is fixed to the housing by screws, which has the disadvantages of using a large number of screws and making it difficult to fix the fastening cover to the housing. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a defibrillator that can reduce the number of screws used to fix the fastening cover, thereby facilitating the fastening of the fastening cover to the rear housing.
[0004] This utility model provides a defibrillator, including a front housing, a rear housing, a capacitor, and a fastening cover; the rear side of the capacitor abuts against the inner rear wall of the rear housing, the fastening cover is installed on the outside of the front side of the capacitor and fastened to the rear housing, the capacitor is pressed against the inner rear wall of the rear housing by the fastening cover, and the front housing is fixed to the front side of the rear housing; a plurality of locking holes are provided on the lower side of the fastening cover at intervals from left to right, and locking blocks corresponding to the plurality of locking holes are provided on the inner bottom of the rear housing, each locking hole engaging with the locking block at the corresponding position; a protruding edge is provided on the upper side and the left and right sides of the fastening cover, and a fixing hole is provided on the protruding edge; the fastening cover and the rear housing are fastened by screws passing through the fixing holes and threadedly connected to the rear housing.
[0005] By adopting the above structure, the lower side of the fastening cover is assembled with the rear housing through a snap-fit mechanism using a snap-fit hole and a snap-fit block. This means that the lower side of the fastening cover does not need to be fixed to the rear housing with screws, thereby reducing the number of screws used to fix the fastening cover and making it easier to fasten the fastening cover to the rear housing.
[0006] In one possible implementation, the lower side of the fastening cover has several limiting pieces spaced apart from left to right. The inner bottom of the rear housing has limiting grooves corresponding to the limiting pieces one by one. Each limiting piece is fitted into the limiting groove at the corresponding position and is limited left and right by the limiting groove. Several locking holes are provided on the limiting pieces. With this structure, when the fastening cover and the rear housing are assembled, each limiting piece can be fitted into the limiting groove at the corresponding position, thereby achieving left and right limitation of the fastening cover and the rear housing. This allows each locking hole to engage with the locking block at the corresponding position, and improves the reliability of the fastening cover and the rear housing after assembly.
[0007] In one possible implementation, the inner contour shape of the fastening cover is adapted to the outer contour shape of the front of the capacitor; by adopting this structure, the inner sidewall of the fastening cover can be more reliably fitted to the outer wall of the front of the capacitor, so that when the fastening cover presses the capacitor onto the rear housing, the fastening cover can reliably apply a clamping force to the capacitor, thereby achieving reliable clamping of the capacitor.
[0008] In one possible implementation, the left and right ends of the capacitor abut against the left and right ends of the inner side of the fastening cover, respectively. With this structure, the left and right ends of the capacitor can be reliably limited after they abut against the left and right ends of the inner side of the fastening cover, thereby improving the reliability of the capacitor after it is pressed against the rear housing by the fastening cover.
[0009] In one possible implementation, a number of reinforcing ribs are provided at the connection between the convex edge and the fastening cover. Each reinforcing rib is integrally connected to the front side of the convex edge and the outer side wall of the fastening cover. By providing the reinforcing ribs, the structural strength between the convex edge and the fastening cover can be improved, so as to avoid the convex edge breaking relative to the fastening cover. Attached Figure Description
[0010] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0011] Figure 2 This is a three-dimensional structural diagram of the present invention after the front shell has been removed;
[0012] Figure 3 This is a schematic diagram of the three-dimensional structure after the fastening cover, capacitor, and rear housing have been disassembled.
[0013] Figure 4 This is a schematic diagram of the first three-dimensional structure of the fastening cover;
[0014] Figure 5 This is a second three-dimensional structural diagram of the fastening cover. Detailed Implementation
[0015] First, those skilled in the art should understand that these embodiments are merely used to explain the technical principles of the embodiments of this application and are not intended to limit the scope of protection of the embodiments of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.
[0016] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.
[0017] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0018] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0019] See Figure 1-5 As shown in the figure, this application discloses a defibrillator, including a front housing 1, a rear housing 2, a capacitor 3, and a fastening cover 4; the rear side of the capacitor 3 abuts against the rear inner wall of the rear housing 2, the fastening cover 4 covers the front side of the capacitor 3 and is fastened to the rear housing 2, the capacitor 3 is pressed against the rear inner wall of the rear housing 2 by the fastening cover 4, and the front housing 1 is fixed to the front side of the rear housing 2; a plurality of locking holes 41 are provided on the lower side of the fastening cover 4 at intervals from left to right, and locking blocks 21 corresponding to the plurality of locking holes 41 are provided on the inner bottom of the rear housing 2, each locking hole 41 is engaged with the locking block 21 at the corresponding position; a protruding edge 42 is provided on the upper side and the left and right sides of the fastening cover 4, and a fixing hole 421 is provided on the protruding edge 42, and the fastening cover 4 and the rear housing 2 are fastened by screws passing through the fixing holes 421 and threadedly connected to the rear housing 2.
[0020] When assembling this utility model, firstly, the front part of the capacitor is inserted into the fastening cover from back to front. Then, each locking hole on the fastening cover is engaged with the corresponding locking block. Next, the rear side of the capacitor abuts against the inner rear wall of the rear housing. Finally, the screw passes through the fixing hole and is threadedly connected to the rear housing. Through the above steps, the fastening cover can reliably press the capacitor against the inner rear wall of the rear housing.
[0021] The lower side of the fastening cover 4 has several limiting pieces 43 arranged at intervals from left to right. The inner bottom of the rear housing 2 is provided with limiting grooves 22 corresponding to the limiting pieces 43. Each limiting piece 43 is fitted into the limiting groove 22 at the corresponding position and is limited left and right by the limiting groove 22. Several locking holes 41 are provided on the limiting pieces 43. With this structure, when the fastening cover and the rear housing are assembled, each limiting piece can be fitted into the limiting groove at the corresponding position, thereby achieving left and right limitation of the fastening cover and the rear housing. This allows each locking hole to engage with the locking block at the corresponding position and improves the reliability of the fastening cover and the rear housing after assembly.
[0022] The inner contour shape of the fastening cover 4 is adapted to the outer contour shape of the front part of the capacitor 3. By adopting this structure, the inner sidewall of the fastening cover can be more reliably attached to the outer wall of the front part of the capacitor, so that when the fastening cover presses the capacitor onto the rear housing, the fastening cover can reliably apply a clamping force to the capacitor, thereby achieving reliable clamping of the capacitor.
[0023] The left and right ends of capacitor 3 abut against the left and right ends of the inner side of fastening cover 4, respectively. With this structure, after the left and right ends of capacitor abut against the left and right ends of the inner side of fastening cover, the left and right limits of capacitor can be reliably achieved, thereby improving the reliability of capacitor after it is pressed tightly onto the rear housing by fastening cover.
[0024] Several reinforcing ribs 422 are provided at the connection between the protruding edge 42 and the fastening cover 4. Each reinforcing rib 422 is integrated with the front side of the protruding edge 42 and the outer side wall of the fastening cover 4. By providing reinforcing ribs, the structural strength between the protruding edge and the fastening cover can be improved, so as to avoid the protruding edge from breaking relative to the fastening cover.
[0025] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
Claims
1. A defibrillator, comprising a front housing (1), a rear housing (2), a capacitor (3), and a fastening cover (4); the rear side of the capacitor (3) abuts against the rear inner wall of the rear housing (2), the fastening cover (4) covers the front side of the capacitor (3) and is fastened to the rear housing (2), the capacitor (3) is pressed against the rear inner wall of the rear housing (2) by the fastening cover (4), and the front housing (1) is fixed to the front side of the rear housing (2); characterized in that: The fastening cover (4) has several locking holes (41) arranged from left to right on its lower side. The inner bottom of the rear housing (2) has locking blocks (21) that correspond one-to-one with the locking holes (41). Each locking hole (41) is engaged with the locking block (21) at the corresponding position. The fastening cover (4) has a protruding edge (42) on its upper side and both sides. The protruding edge (42) has a fixing hole (421). The fastening cover (4) and the rear housing (2) are fastened by screws that pass through the fixing hole (421) and are threaded to the rear housing (2).
2. The defibrillator according to claim 1, characterized in that: The lower side of the fastening cover (4) forms a plurality of limiting pieces (43) spaced from left to right. The inner bottom of the rear housing (2) is provided with limiting grooves (22) corresponding to the plurality of limiting pieces (43). Each limiting piece (43) is fitted into the limiting groove (22) at the corresponding position and is limited to the left and right of the limiting groove (22). A plurality of card holes (41) are provided on the plurality of limiting pieces (43).
3. The defibrillator according to claim 1 or 2, characterized in that: The inner contour shape of the fastening cover (4) is adapted to the outer contour shape of the front part of the capacitor (3).
4. The defibrillator according to claim 3, characterized in that: The left and right ends of the capacitor (3) abut against the left and right ends of the inner side of the fastening cover (4), respectively.
5. The defibrillator according to claim 1, 2, or 4, characterized in that: A number of reinforcing ribs (422) are provided at the connection between the protruding edge (42) and the fastening cover (4). Each reinforcing rib (422) is integrated with the front side of the protruding edge (42) and the outer side wall of the fastening cover (4).