Cover opening structure for blister box
By using a combination of locking limit blocks and reset springs on the blister pack, the problem of the protective cover of the blister pack easily falling off is solved, and the blister pack is firmly fixed to prevent damage and contamination of the items.
Patent Information
- Application Number
- CN202520701084.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-15
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-04-15
AI Technical Summary
Existing blister packaging methods cannot effectively prevent the protective cover from falling off due to vibration, collision, or tilting, which could lead to damage, loss, or contamination of the items.
The combination structure of locking limit block and reset spring is adopted. The locking constraint block and locking limit block are tightly connected by fixing screws to ensure that the blister protective cover is firmly fixed on the protective box.
Effectively prevents the blister protective cover from falling off due to accidental vibration, collision, or tilting, thus avoiding damage to the items.
Smart Images

Figure CN223935389U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of blister box opening technology, and in particular to an opening structure for blister boxes. Background Technology
[0002] In the packaging industry, blister packs are widely used for packaging various items due to their good formability, transparency, and cost advantages. Blister packs are usually placed inside blister protective boxes, and the items are placed inside the blister packs and then sealed with blister protective lids. This packaging method can play a certain role in protecting and displaying the items.
[0003] Currently, common blister packaging on the market usually relies on the friction between the blister cover and the blister box to secure it. With this method, the blister cover is very easy to fall off when subjected to slight vibration, collision or tilt. Other methods that use adhesive or simple buckles, although they enhance the securing effect to some extent, may damage the packaging when opened and are difficult to reuse. Simple buckle structures are prone to wear and tear due to long-term use, resulting in a gradual decrease in the securing effect, and also cannot effectively prevent the blister cover from falling off accidentally.
[0004] Therefore, the existing blister box packaging fixing methods cannot well meet the actual use needs. The blister protective cover can easily fall off, causing the contents of the box to be exposed, resulting in damage, loss or contamination of the items. Therefore, a more reliable and convenient blister box opening structure is needed to solve these problems. Utility Model Content
[0005] Given that the existing blister box packaging fixing methods cannot adequately meet actual usage needs, and that the blister protective cover can easily fall off, exposing the contents of the box and causing damage, loss, or contamination, this utility model is proposed.
[0006] Therefore, the purpose of this utility model is to install a fixing screw in the locking limiting groove on one side of the locking limiting block. The fixing screw is provided on the reset spring. When the locking constraint block is sleeved on the locking limiting block, the reset spring will be squeezed and undergo elastic deformation, and will be inserted into the spring limiting groove on the inner side of the locking constraint block. The insertion of the reset spring makes the locking constraint block and the locking limiting block tightly connected, thereby firmly fixing the blister protective cover on the blister protective box, effectively preventing the blister protective cover from falling off due to vibration, collision or tilt, thereby avoiding damage to the items.
[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a lid-opening structure for a blister box, comprising...
[0008] Blister protective case;
[0009] A support constraint plate is set on one side of the blister protective box. A locking limit block is provided on one side of the support constraint plate, and two locking limit grooves are opened on one side of the locking limit block.
[0010] The constraint assembly includes a fixing screw installed inside the locking limit groove, each fixing screw having a reset spring inside, and one end of each reset spring being connected to the locking limit block;
[0011] The limiting component includes two locking constraint blocks installed on one side of the blister protective box. Each locking constraint block has an elastic pressing piece on one side and an insertion limiting groove on the inner side of each locking constraint block.
[0012] As a preferred embodiment of the opening structure for the blister box of this utility model, the blister protective box is provided with a blister protective cover on one side, and a fixed constraint block is provided on one side of the blister protective cover, and two limit constraint blocks are provided on the fixed constraint block.
[0013] As a preferred embodiment of the opening structure for the blister box of this utility model, each locking limit block has two threaded holes, and each locking constraint block is sleeved on the locking limit block through an insertion limit groove.
[0014] Optionally, a fixed limiting groove is provided on each locking constraint block, and a constraint fixing groove is provided on each locking constraint block, with the fixed constraint block located inside the two fixed limiting grooves.
[0015] Optionally, each limiting constraint block is located inside the corresponding constraint fixing groove, and a spring limiting groove is opened inside each locking constraint block. One side of each spring limiting groove is connected to the insertion limiting groove.
[0016] Optionally, each reset spring is located on one side inside the corresponding spring limiting groove.
[0017] Optionally, a fixing screw is fitted onto each reset spring, with one end of the fixing screw threaded into the corresponding threaded hole, and an elastic pressing piece is provided on one side of each locking constraint block.
[0018] The beneficial effects of this utility model are:
[0019] A fixing screw is installed in the locking limit groove on one side of the locking limit block. The fixing screw is located on the reset spring. When the locking constraint block is sleeved on the locking limit block, the reset spring will be squeezed and undergo elastic deformation, and will be inserted into the spring limit groove on the inner side of the locking constraint block. The insertion of the reset spring makes the locking constraint block and the locking limit block tightly connected, thereby firmly fixing the blister protective cover to the blister protective box, effectively preventing the blister protective cover from falling off due to vibration, collision or tilt, thus avoiding damage to the item. Attached Figure Description
[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:
[0021] Figure 1 This is a schematic diagram of the overall structure of the blister box opening structure of this utility model.
[0022] Figure 2 This is a schematic diagram of the structure of the blister protective cover of this utility model.
[0023] Figure 3 This is a schematic diagram of the structure of the blister protective box of this utility model.
[0024] Figure 4 This is a schematic diagram of the locking and limiting block structure of this utility model.
[0025] Figure 5 This is a schematic diagram of the locking constraint block structure of this utility model.
[0026] Figure 6 This is a schematic diagram of the reset spring structure of this utility model.
[0027] Explanation of reference numerals in the attached figures:
[0028] 1. Blister protective box; 2. Blister protective cover; 3. Fixed constraint block; 4. Limit constraint block; 5. Support constraint plate; 6. Locking limit block; 7. Locking limit groove; 8. Threaded hole; 9. Reset spring; 10. Locking constraint block; 11. Insertion limit groove; 12. Spring limit groove; 13. Fixed limit groove; 14. Constraint fixing groove; 15. Elastic pressing piece; 16. Fixing screw. Detailed Implementation
[0029] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0030] Example 1
[0031] Reference Figure 1-4This is the first embodiment of the present utility model, which provides a blister box opening structure, including a blister protective box 1 and a support constraint plate 5 on one side of the blister protective box 1. A locking limit block 6 is provided on one side of the support constraint plate 5. Two locking limit grooves are opened on one side of the locking limit block 6. A fixing screw 16 is installed inside the locking limit groove 7. A reset spring 9 is provided inside each fixing screw 16. One end of each reset spring 9 is connected to the locking limit block 6. A blister protective cover 2 is provided on one side of the blister protective box 1. A fixing constraint block 3 is provided on one side of the blister protective cover 2. Two limit constraint blocks 4 are provided on the fixing constraint block 3.
[0032] Two threaded holes 8 are provided on each locking limit block 6. Each locking constraint block 10 is sleeved on the locking limit block 6 through the insertion limit groove 11. A fixed limit groove 13 is provided on each locking constraint block 10. A constraint fixing groove 14 is provided on each locking constraint block 10. The fixed constraint block 3 is located inside the two fixed limit grooves 13.
[0033] Example 2
[0034] Reference Figure 3-6 This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that it includes two locking constraint blocks 10 installed on one side of the blister protective box 1. Each locking constraint block 10 has an elastic pressing piece 15 on one side. Each locking constraint block 10 has an insertion limiting groove 11 on its inner side. Each limiting constraint block 4 is located inside the corresponding constraint fixing groove 14. Each locking constraint block 10 has a spring limiting groove 12 on its inner side. One side of each spring limiting groove 12 is connected to the insertion limiting groove 11.
[0035] Each reset spring 9 is located on one side inside the corresponding spring limiting groove 12. Each reset spring 9 is fitted with a fixing screw 16. One end of the fixing screw 16 is threaded into the corresponding threaded hole 8. Each locking constraint block 10 is provided with an elastic pressing piece 15 on one side.
[0036] When in use, the inner side of the blister protective box 1 is equipped with a blister box. First, place the item in the blister box, and then put the blister protective cover 2 on the blister protective box 1. The fixing constraint block 3 on one side of the blister protective cover 2 will cooperate with the locking constraint block 10 on one side of the blister protective box 1. The two limiting constraint blocks 4 on the fixing constraint block 3 will be inserted into the constraint fixing groove 14 on the locking constraint block 10. At the same time, the locking constraint block 10 is sleeved on the locking limiting block 6 through the insertion limiting groove 11.
[0037] A fixing screw 16 is installed in the locking groove 7 on one side of the locking limit block 6. The fixing screw 16 is provided on the reset spring 9. When the locking constraint block 10 is sleeved on the locking limit block 6, the reset spring 9 will be squeezed and undergo elastic deformation, and will be inserted into the spring limiting groove 12 on the inner side of the locking constraint block 10. The insertion of the reset spring 9 makes the locking constraint block 10 and the locking limit block 6 tightly connected, thereby firmly fixing the blister protective cover 2 on the blister protective box 1, effectively preventing the blister protective cover 2 from falling off due to vibration, collision or tilting.
[0038] When it is necessary to open the blister protective cover 2, press the elastic pressing piece 15 on one side of the locking constraint block 10. The elastic pressing piece 15 deforms under force, causing the locking constraint block 10 to move to a certain displacement, so that the reset spring piece 9 inserted in the spring piece limiting groove 12 is disengaged. Then the locking constraint block 10 can be removed from the locking limiting block 6, and the blister protective cover 2 can be opened to take out the items in the blister box.
[0039] The remaining structure is the same as that in Example 1.
[0040] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A lid-opening structure for a blister pack, characterized in that: include Blister protective case; A support constraint plate is provided on one side of the blister protective box. A locking limit block is provided on one side of the support constraint plate, and two locking limit grooves are opened on one side of the locking limit block. The constraint assembly includes a fixing screw installed inside the locking limit groove, each fixing screw having a reset spring inside, and one end of each reset spring being connected to the locking limit block; The limiting component includes two locking constraint blocks installed on one side of the blister protective box. Each locking constraint block has an elastic pressing piece on one side and a limiting groove for insertion on the inner side of each locking constraint block.
2. The blister box opening structure according to claim 1, characterized in that: The blister protective box has a blister protective cover on one side, and a fixed constraint block on one side of the blister protective cover. The fixed constraint block has two limit constraint blocks.
3. The blister box opening structure according to claim 2, characterized in that: Each of the locking limit blocks has two threaded holes, and each locking constraint block is sleeved on the locking limit block through a plug-in limit groove.
4. The blister box opening structure according to claim 3, characterized in that: Each of the locking constraint blocks has a fixed limiting groove and a constraint fixing groove, and the fixed constraint block is located inside the two fixed limiting grooves.
5. The blister box opening structure according to claim 4, characterized in that: Each of the aforementioned limiting constraint blocks is located inside the corresponding constraint fixing groove, and a spring limiting groove is opened inside the locking constraint block. One side of each spring limiting groove is connected to the insertion limiting groove.
6. The blister box opening structure according to claim 1, characterized in that: Each of the reset springs is located on one side inside the corresponding spring limiting groove.
7. The blister box opening structure according to claim 6, characterized in that: Each of the reset springs is fitted with a fixing screw, one end of which is threaded into the corresponding threaded hole. Each locking constraint block has an elastic pressing piece on one side.