A locking cover assembled by means of hot stamping

Abstract

The present invention aims to solve the problems of difficult assembly and production of the locking cover, difficult to ensure high yield, and high production cost. The locking cover includes: a cover body having a locking tongue or a locking engagement mechanism; and a top cover that cooperates with it. The bottom skirt of the top cover is inserted into the cover body, and the top cover is assembled by hot stamping. After hot stamping, the bottom skirt is deformed into an inverted buckle structure, which engages the top cover with the cover body. When in use, the inverted buckle engagement structure can be deformed by tearing to separate the top cover from the cover body, and no foreign objects will appear after tearing. The hot stamping method makes the combination of the cover body and the top cover tight, with better dust-proof and shielding effects.

Description

Technical Field

[0001] The present invention relates to the technical field of locking covers, and more particularly to a locking cover assembled by hot stamping. Background Art

[0002] The traditional locking cap packaging method is to put an aluminum cap on the outside of the rubber stopper to protect the rubber stopper and seal the glass bottle well, and also to identify whether it has been used. Once used, the aluminum cap will have a hole. Summary of the Invention

[0003] In view of this, in order to solve the problems of difficult assembly and production of the locking cover, difficulty in ensuring the yield and high production cost, the present invention comprises: a cover body with a locking tongue or a locking engagement mechanism; and a top cover matched therewith, the bottom skirt of the top cover is inserted into the cover body, and the top cover is assembled by hot stamping. The bottom skirt is deformed into an inverted structure after hot stamping, and the inverted structure enables the top cover to be engaged with the cover body. When in use, the inverted engaging structure can be deformed by tearing and thus the top cover is separated from the cover body. No foreign matter will appear after tearing. The hot stamping method makes the cover body and the top cover tightly combined, and the dustproof and shielding effects are better.

[0004] A locking cover assembled by hot stamping, the locking cover consists of a cover body 100, a plug 200, a container 300 and a top cover 400, the plug 200 is placed inside the cover body 100, the top cover 400 is located on the top of the cover body 100, the cover body 100 is sleeved with the neck of the container 300, and the characteristics are: the cover body 100 is a hollow structure, a center hole 101 is provided at the center of the top, the center hole 101 leads from the top to the plug 200, and the center hole 101 is used for A channel is left for the syringe needle, and the bottom is an open hole for receiving the container 300. The top cover 400 is a circular thin sheet. A skirt 401 extends vertically downward from the bottom of the top cover 400 near the center hole 101. The skirt 401 is matched and connected with the center hole 101 of the cover body 100. An annular hook 102 extends from the lower part of the cover body 100, and an annular neck 301 is provided at the upper end of the container 300. When assembled, the annular hook 102 is engaged with the annular neck 301.

[0005] Furthermore, the skirt 401 and the central hole 101 of the cover body 100 are opened to form a trumpet shape after being hot-ironed. The trumpet shape enables the top cover 400 and the cover body 100 to be engaged to form a sealed whole, thereby achieving the effect of dustproofing and isolating from the outside.

[0006] Furthermore, the diameter of the bottom of the skirt 401 after assembly is larger than the diameter of the central hole 101 of the cover body 100, and the top cover 400 and the cover body 100 can be easily torn and separated. After separation, the skirt 401 of the top cover 400 protrudes from the cover body 100. And because it has undergone heat stamping deformation, the end of the skirt 401 opens, and the size of the skirt 401 is larger than the opening at the top of the cover body 100 and cannot be reinserted into the cover body 100, thus ensuring that the device is for single use.

[0007] Furthermore, in the free state, the skirt 401 and the central hole 101 of the cover body 100 are in clearance fit. When no heat stamping deformation treatment is carried out, the diameter of the skirt 401 is slightly smaller than the diameter of the central hole 101 of the cover body 100, and the clearance is 0 - 2 mm, preferably 0.1 mm. The skirt 401 is heat stamped from one side of the bottom, and the skirt 401 opens outwards after heat stamping.

[0008] Furthermore, in the free state, the structure of the skirt 401 is a complete ring that is convenient for processing and assembly. The complete ring makes the mold structure simple and does not require angular positioning during assembly and heat stamping processing.

[0009] Furthermore, in the free state, the distance that the skirt 401 extends vertically downwards is 0.1 times - 2 times its diameter, preferably 0.2 times. The wall thickness of the skirt 401 is 0.3 times - 1.5 times the thickness of the thin sheet at the top of the top cover 400, preferably 0.6 times.

[0010] Furthermore, the side wall of the central hole 101 of the cover body 100 is an inclined surface, and the angle between the inclined surface and the vertical direction is 20° - 70°, preferably 45°. The skirt 401 opens and deforms towards the inclined surface after heat stamping and finally presses against the inclined surface. The opening angle of the skirt 401 is the same as the angle of the inclined surface, and the opening angle is 20° - 70°, preferably 45°.

[0011] Furthermore, the material of the top cover 400 is selected as an elastic plastic material. The selection of this elastic material allows the skirt 401 of the top cover 400 to have elastic contraction ability. When tearing the top cover 400, the opened skirt 401 can contract inwards and protrude from the central hole 101 of the cover body 100.

[0012] Furthermore, the locking cover is a locking cover that can be opened with one hand.

[0013] The top cover 400 is pulled out from the cover body 100, and the masking of the opening at the top of the cover body 100 is removed. At this time, an instrument such as a syringe can be used to pierce the rubber stopper 200 to take out the pharmaceutical agent in the container 300.

[0014] Further, a bevel 103 is provided at the upper part of the cover body 100. The included angle between the bevel 103 and the vertical direction is 20° - 60°, preferably 40°. This bevel 103 forms a triangular depression between the cover body 100 and the top cover 400, and this depression serves as a finger grip position when tearing the top cover 400. The depth of the depression is 0.2 - 5 mm, preferably 1.6 mm, which facilitates the tearing action when the user uses it.

[0015] Further, a ring-shaped positioning ring 104 is provided around the periphery of the central hole 101. The ring-shaped positioning ring 104 is located inside the cover body 100 and is integrally formed with the cover body 100. The diameter of the ring-shaped positioning ring 104 is smaller than the diameter of the head 201 of the rubber plug. The ring-shaped positioning ring 104 plays a supporting role on the top of the rubber plug 200, facilitating the fixation of the rubber plug 200.

[0016] Further, the material of the cover body 100 is selected as an elastic plastic material. The selection of this elastic material enables the annular hook 102 of the cover body 100 to have elastic contraction ability. The wall thickness of the annular hook 102 is set to be 0.3 - 0.8 times the average wall thickness of the cover body 100, preferably 0.66 times, so that the annular hook 102 has better elasticity. The annular hook 102 is a one-way engaging structure, and the annular hook 102 bends from the outside to the inside. The annular hook 102 is also formed by hot stamping. When the annular hook 102 inside the cover body 100 is pressed towards the container 300, it will be squeezed towards the surroundings by the lip-shaped part of the container neck. Once it crosses the neck of the container 300, the annular hook 102 will restore its shape. The force for the annular hook 102 to clamp tightly with the container neck is set to be very large, and this force is much greater than the force required to tear the top cover 400. The clamping force is 2 - 20 times the force to tear the top cover 400. Therefore, the situation where the cover body 100 is accidentally pulled out of the container 300 when tearing the top cover 400 will not occur.

[0017] Further, the rubber plug 200 is composed of a rubber plug head 201 and a rubber plug body 202. The rubber plug 200 is a ring-shaped structure, and the top of the upper elastic arm is engaged with the bottom surface of the rubber plug head 201.

[0018] Further, the diameter of the rubber plug head 201 is larger than the diameter of the central hole 101 and smaller than the diameter of the open hole at the bottom of the cover body 100. The diameter of the rubber plug body 202 is smaller than the diameter of the neck of the container 300.

[0019] Further, both the cover body 100 and the top cover 400 are ring-shaped or barrel-shaped structures, which can be applicable to all containers 300 with a circular neck having a lip-shaped outer edge. Containers 300 of this shape are also commonly used. The circular structure also enables this device to not require angle positioning. There is no need for angle positioning between the cover body 100 and the rubber plug 200, between the cover body 100 and the container 300, and between the top cover 400 and the cover body 100.

[0020] Advantages of the present invention: The locking cover includes: a cover body 100 having a locking tongue or a locking engagement mechanism; and a top cover 400 cooperating therewith. The bottom skirt 401 of the top cover 400 is inserted into the cover body 100, and the top cover 400 is assembled by hot stamping. After hot stamping, the bottom skirt 401 is deformed into an inverted buckle structure, which makes the top cover 400 snap-fitted with the cover body 100. During use, the inverted buckle snap-fitting structure can be deformed by tearing to separate the top cover 400 from the cover body 100, and no foreign objects will appear after tearing. The hot stamping method makes the cover body 100 and the top cover 400 closely combined, with better dust-proof and shielding effects. Brief Description of the Drawings

[0021] Figure 1 It is a schematic diagram of the overall appearance of the locking cover assembled by the hot stamping method of the present invention.

[0022] Figure 2 It is a schematic diagram of the overall appearance of the locking cover assembled by the hot stamping method of the present invention.

[0023] Figure 3 It is a side view of the locking cover assembled by the hot stamping method of the present invention.

[0024] Figure 4 It is a side view of the cover body of the locking cover assembled by the hot stamping method of the present invention.

[0025] Figure 5 It is a top view of the cover body of the locking cover assembled by the hot stamping method of the present invention.

[0026] Figure 6 It is a side view of the top cover of the locking cover assembled by the hot stamping method of the present invention.

[0027] Figure 7 It is a schematic diagram of the structure of the locking cover assembled by the hot stamping method of the present invention with the skirt not subjected to hot stamping treatment.

[0028] Figure 8 It is a cross-sectional view of the cover body of the locking cover assembled by the hot stamping method of the present invention.

[0029] Figure 9 It is a schematic diagram of the structure in which the top cover of the locking cover assembled by the hot stamping method of the present invention is inserted into the cover body.

[0030] Figure 10 It is a schematic diagram of the structure in which the bottom skirt of the top cover of the locking cover assembled by the hot stamping method of the present invention is deformed after hot stamping.

[0031] Figure 11 It is a schematic diagram of the structure in which the rubber plug of the locking cover assembled by the hot stamping method of the present invention is inserted into the container.

[0032] Figure 12This is a schematic structural diagram of the locking cover assembled by hot stamping after the top cover is torn off in the present invention.

[0033] Figure 13 This is a schematic structural diagram of the locking cover assembled by hot stamping after the top cover is torn off in the present invention.

[0034] Description of main component symbols

[0035] Hood body 100 Central hole 101 Annular hook 102 Inclined plane 103 Annular positioning ring 104 Rubber plug 200 Head of rubber plug 201 Body of rubber plug 202 Container 300 Annular neck 301 Top cover 400 Skirt 401

[0036] The following specific embodiments will further illustrate the present invention in conjunction with the above-mentioned drawings. Specific embodiments Specific embodiment 1

[0038] As Figure 1 shown, this is a schematic overall appearance diagram of the locking cover assembled by hot stamping in the present invention; as Figure 2 shown, this is a schematic overall appearance diagram of the locking cover assembled by hot stamping in the present invention; as Figure 3 shown, this is a side view of the locking cover assembled by hot stamping in the present invention; as Figure 4 shown, this is a side view of the cover body of the locking cover assembled by hot stamping in the present invention; as Figure 5 shown, this is a top view of the cover body of the locking cover assembled by hot stamping in the present invention; as Figure 6 shown, this is a side view of the top cover of the locking cover assembled by hot stamping in the present invention; as Figure 7 shown, this is a schematic structural diagram of the locking cover assembled by hot stamping with the skirt not hot stamped; as Figure 8 shown, this is a cross-sectional view of the cover body of the locking cover assembled by hot stamping in the present invention; as Figure 9 shown, this is a schematic structural diagram of the top cover of the locking cover assembled by hot stamping inserted into the cover body; as Figure 10 shown, this is a schematic structural diagram of the bottom skirt of the top cover of the locking cover assembled by hot stamping deformed after hot stamping; as Figure 11 shown, this is a schematic structural diagram of the rubber plug of the locking cover assembled by hot stamping inserted into the container; as Figure 12 shown, this is a schematic structural diagram of the locking cover assembled by hot stamping after the top cover is torn off; as Figure 13 shown, this is a schematic structural diagram of the locking cover assembled by hot stamping after the top cover is torn off.

[0039] A locking cover assembled by heat stamping, which consists of a cover body 100, a rubber plug 200, a container 300 and a top cover 400. The rubber plug 200 is placed inside the cover body 100, and the top cover 400 is located at the top of the cover body 100. The cover body 100 is sleeved on the neck of the container 300. It is characterized in that: the cover body 100 is of a hollow structure, with a central hole 101 provided at the center of the top. The central hole 101 leads from the top to the rubber plug 200 and is used to leave a channel for the syringe needle. The bottom is an open hole for receiving the container 300. The top cover 400 is a circular thin sheet. A skirt 401 extends vertically downward in a circle at the position of the bottom of the top cover 400 close to the central hole 101. The skirt 401 is matched and connected with the central hole 101 of the cover body 100. An annular hook 102 is provided at the lower part of the cover body 100, and an annular neck 301 is provided at the upper end of the container 300. During assembly, the annular hook 102 is engaged with the annular neck 301.

[0040] After heat stamping, the skirt 401 and the central hole 101 of the cover body 100 open to the surrounding to form a trumpet shape, which makes the top cover 400 and the cover body 100 engage to form a sealed whole, achieving the functions of dust prevention and isolation from the outside.

[0041] After assembly, the diameter of the bottom of the skirt 401 is larger than the diameter of the central hole 101 of the cover body 100. The top cover 400 and the cover body 100 can be easily torn and separated. After separation, the skirt 401 of the top cover 400 comes out of the central hole 101 of the cover body 100. And because it has undergone heat stamping deformation, the end of the skirt 401 opens, and the size of the skirt 401 is larger than the opening at the top of the cover body 100 and cannot be inserted into the cover body 100 again, thus ensuring that the device is for single use.

[0042] In the free state, the skirt 401 and the central hole 101 of the cover body 100 are in clearance fit. Before heat stamping deformation, the diameter of the skirt 401 is slightly smaller than the diameter of the central hole 101 of the cover body 100, and the clearance is 0 - 2 mm, preferably 0.1 mm. The skirt 401 is heat stamped from one side of the bottom, and the skirt 401 opens to the surrounding after heat stamping.

[0043] The side wall of the central hole 101 of the cover body 100 is an inclined surface, and the angle between the inclined surface and the vertical direction is 20° - 70°. After heat stamping, the skirt 401 deforms and opens towards the inclined surface and finally presses against the inclined surface. The opening angle of the skirt � is the same as the angle of the inclined surface, and the opening angle is 20° - 70°.

[0044] The top cover 400 is made of an elastic plastic material. The selection of this elastic material allows the skirt 401 of the top cover 400 to have elastic shrinkage ability. When tearing the top cover 400, the opened skirt 401 can shrink inward and come out of the central hole 101 of the cover body 100.

[0045] In the free state, the structure of the skirt 401 is a complete ring that is convenient for processing and assembly. The complete ring makes the mold structure simple and eliminates the need for angular positioning during assembly and heat stamping.

[0046] In the free state, the distance that the skirt 401 extends vertically downward is 0.1 to 2 times its diameter, and the wall thickness of the skirt 401 is 0.3 to 1.5 times the thickness of the thin sheet at the top of the top cover 400.

[0047] The locking cap is a locking cap that can be opened with one hand.

[0048] The top cover 400 is pulled out from the body 100, and the mask of the opening on the top of the body 100 is removed. At this time, an instrument such as a syringe can be used to pierce the rubber stopper 200 to take out the pharmaceutical agent in the container 300.

[0049] An inclined surface 103 is provided on the upper part of the body 100. The included angle between the inclined surface 103 and the vertical direction is 20° - 60°. This inclined surface 103 forms a triangular depression between the body 100 and the top cover 400. This depression serves as a grip position when tearing the top cover 400, and the depth of the depression is 0.2 - 5 mm, which facilitates the tearing action when the user uses it.

[0050] A ring-shaped positioning ring 104 is provided around the periphery of the central hole 101. The ring-shaped positioning ring 104 is located inside the body 100 and is integrally formed with the body 100. The diameter of the ring-shaped positioning ring 104 is smaller than the diameter of the head 201 of the rubber stopper. The ring-shaped positioning ring 104 provides a supporting effect on the top of the rubber stopper 200, facilitating the fixation of the rubber stopper 200.

[0051] The material of the body 100 is selected as an elastic plastic material. This selection of elastic material allows the annular hook 102 of the body 100 to have elastic contraction ability. The wall thickness of the annular hook 102 is set to be 0.3 - 0.8 times the average wall thickness of the body 100, making the annular hook 102 have better elasticity. The annular hook 102 is a one-way engaging structure, and the annular hook 102 bends from the outside to the inside. The annular hook 102 is also formed by heat stamping. When the annular hook 102 inside the body 100 is pressed towards the container 300, it will be squeezed towards the surroundings by the lip-shaped part of the container neck. Once it crosses the neck of the container 300, the annular hook 102 will return to its original shape. The force for the annular hook 102 to clamp tightly with the container neck is set to be very large, and this force is much greater than the force required to tear the top cover 400. The clamping force is 2 - 20 times the force to tear the top cover 400. Therefore, the situation where the body 100 is accidentally pulled out of the container 300 when tearing the top cover 400 will not occur.

[0052] The rubber stopper 200 is composed of a rubber stopper head 201 and a rubber stopper body 202. The rubber stopper 200 is a ring-shaped structure, and the top of the upper elastic arm is engaged with the bottom surface of the rubber stopper head 201.

[0053] The diameter of the head 201 of the rubber stopper is greater than the diameter of the central hole 101 and less than the diameter of the open-type opening at the bottom of the cover body 100, and the diameter of the rubber stopper body 202 is less than the diameter of the neck of the container 300.

[0054] Both the cover body 100 and the top cover 400 are of annular or barrel-shaped structures, which can be applicable to all containers 300 with circular necks having a lip-shaped outer edge. Containers 300 of this shape are also commonly used, and the circular structure enables the device to dispense with angular positioning. There is no need for angular positioning between the cover body 100 and the rubber stopper 200, between the cover body 100 and the container 300, and between the top cover 400 and the cover body 100.

[0055] The assembly steps of a locking cover assembled by means of hot stamping are as follows:

[0056] Step 1: Insert the skirt 401 at the bottom of the top cover 400 into the central hole 101 at the top of the cover body 100. The skirt 401 of the top cover 400 and the opening of the cover body 100 are both of a full-circumference annular shape, and angular positioning is not required.

[0057] [[ID=ID=14]]Step 2: From one side at the bottom, use a profiling hot stamping tool to perform hot stamping on the skirt 401, causing it to deform radially. After hot stamping, the end of the skirt 401 opens and deforms radially to form a trumpet structure, which causes the top cover 400 and the cover body 100 to be snap-fitted together.

[0058] Step 3: The rubber stopper 200 and the container 300 are pre-assembled by insertion. Press the top cover 400 and the cover body 100 assembled by hot stamping against the neck of the container 300. The internal annular hook 102 of the cover body 100 passes over the neck of the container 300. After reaching the snap-fitting position, the shape of the hook is restored. The annular hook 102 is set as a one-way hook and cannot be disassembled once snap-fitted. At this time, the rubber stopper 200 is firmly pressed by the cover body 100 in the container 300. The neck of the container 300 is of an annular structure and angular positioning is not required.

[0059] Step 4: The assembly is completed.

[0060] The usage steps of a locking cover assembled by means of hot stamping are as follows:

[0061] Step 1: Grasp the side of the top cover 400 and pull out the skirt 401 of the top cover 400 from the central hole 101 of the cover body 100, and the shielding of the rubber stopper 200 is released. At this time, an instrument such as a syringe can be used to pierce the rubber stopper 200 to take out the pharmaceutical agent in the container 300.

[0062] Step 2: After use, the skirt 401 of the top cover 400 disengages from the central hole 101 of the cover body 100. Due to hot stamping deformation, the outer diameter of the end of the skirt 401 is greater than the central hole 101 at the top of the cover body 100 and cannot be reinserted into the hole, ensuring that the device is for single use. Specific Embodiment 2

[0064] As Figure 1 shown, it is an overall appearance schematic diagram of the locking cover assembled by the hot stamping method of the present invention; as Figure 2 shown, it is an overall appearance schematic diagram of the locking cover assembled by the hot stamping method of the present invention; as Figure 3 shown, it is a side view of the locking cover assembled by the hot stamping method of the present invention; as Figure 4 shown, it is a side view of the cover body of the locking cover assembled by the hot stamping method of the present invention; as Figure 5 shown, it is a top view of the cover body of the locking cover assembled by the hot stamping method of the present invention; as Figure 6 shown, it is a side view of the top cover of the locking cover assembled by the hot stamping method of the present invention; as Figure 7 shown, it is a structural schematic diagram of the locking cover assembled by the hot stamping method of the present invention with the skirt not hot stamped; as Figure 8 shown, it is a sectional view of the cover body of the locking cover assembled by the hot stamping method of the present invention; as Figure 9 shown, it is a structural schematic diagram of the top cover of the locking cover assembled by the hot stamping method of the present invention inserted into the cover body; as Figure 10 shown, it is a structural schematic diagram of the bottom skirt of the top cover of the locking cover assembled by the hot stamping method of the present invention deformed after hot stamping; as Figure 11 shown, it is a structural schematic diagram of the rubber plug of the locking cover assembled by the hot stamping method of the present invention inserted into the container; as Figure 12 shown, it is a structural schematic diagram of the locking cover assembled by the hot stamping method of the present invention after the top cover is torn off and removed; as Figure 13 shown, it is a structural schematic diagram of the locking cover assembled by the hot stamping method of the present invention after the top cover is torn off and removed.

[0065] A locking cover assembled by the hot stamping method, the locking cover is composed of a cover body 100, a rubber plug 200, a container 300 and a top cover 400. The rubber plug 200 is placed inside the cover body 100, the top cover 400 is located at the top of the cover body 100, and the cover body 100 is sleeved on the neck of the container 300. It is characterized in that: the cover body 100 is a hollow structure, a central hole 101 is provided at the center position of the top, the central hole 101 leads from the top to the rubber plug 200, the central hole 101 is used to leave a channel for the syringe needle, the bottom is an open-type opening for receiving the container 300, the top cover 400 is a circular thin sheet, a skirt 401 extends vertically downward at a position near the central hole 101 at the bottom of the top cover 400, and the skirt 401 is in matching connection with the central hole 101 of the cover body 100. An annular hook 102 is extended at the lower part of the cover body 100, and an annular neck 301 is provided at the upper end of the container 300. During assembly, the annular hook 102 is engaged with the annular neck 301.

[0066] After heat stamping, the skirt 401 and the central hole 101 of the cover body 100 open outwards to form a trumpet shape. The trumpet shape enables the top cover 400 and the cover body 100 to be engaged to form a sealed whole, achieving the functions of dust prevention and isolation from the outside.

[0067] After assembly, the diameter of the bottom of the skirt 401 is larger than the diameter of the central hole 101 of the cover body 100. The top cover 400 and the cover body 100 can be easily torn and separated. After separation, the skirt 401 of the top cover 400 disengages from the cover body 100. And because it has undergone heat stamping deformation, the end of the skirt 401 opens, and the size of the skirt 401 is larger than the opening at the top of the cover body 100 and cannot be reinserted into the cover body 100, thus ensuring that the device is for single use.

[0068] In the free state, the skirt 401 and the central hole 101 of the cover body 100 are in clearance fit. Before heat stamping deformation treatment, the diameter of the skirt 401 is slightly smaller than the diameter of the central hole 101 of the cover body 100, and the clearance is 0.1 mm. Heat stamping treatment is performed on the skirt 401 from one side at the bottom, and the skirt 401 opens outwards after heat stamping.

[0069] The side wall of the central hole 101 of the cover body 100 is an inclined plane, and the included angle between the inclined plane and the vertical direction is 45°. After heat stamping, the skirt 401 deforms and opens towards the inclined plane and finally abuts against the inclined plane. The opening angle of the skirt 401 is the same as the angle of the inclined plane, and the opening angle is 45°.

[0070] The top cover 400 is made of an elastic plastic material. The selection of this elastic material enables the skirt 401 of the top cover 400 to have elastic contraction ability. When tearing the top cover 400, the opened skirt 401 can contract inwards and disengage from the central hole 101 of the cover body 100.

[0071] The locking cover is a locking cover that can be opened with one hand.

[0072] Furthermore, in the free state, the structure of the skirt 401 is a complete ring that is convenient for processing and assembly. The complete ring makes the mold structure simple, and no angle positioning is required during assembly and heat stamping processing.

[0073] Furthermore, in the free state, the distance that the skirt 401 extends vertically downwards is 0.2 times its diameter, and the wall thickness of the skirt 401 is 0.6 times the thickness of the thin sheet at the top of the top cover 400.

[0074] The top cover 400 is pulled out from the cover body 100, and the shielding of the opening at the top of the cover body 100 is removed. At this time, an instrument such as a syringe can be used to pierce the rubber stopper 200 to take out the drug preparation in the container 300.

[0075] The upper part of the cover body 100 is provided with a bevel 103. The included angle between the bevel 103 and the vertical direction is 40°. This bevel 103 forms a triangular depression between the cover body 100 and the top cover 400. This depression serves as a grip position when tearing the top cover 400. The depth of the depression is 1.6 mm, facilitating the tearing action for the user during use.

[0076] A circular positioning ring 104 is provided around the periphery of the central hole 101. The circular positioning ring 104 is located inside the cover body 100 and is integrally formed with the cover body 100. The diameter of the circular positioning ring 104 is smaller than the diameter of the head of the rubber plug 201. The circular positioning ring 104 provides a supporting effect on the top of the rubber plug 200, facilitating the fixation of the rubber plug 200.

[0077] The material of the cover body 100 is selected as an elastic plastic material. This selection of elastic material enables the annular hook 102 of the cover body 100 to have elastic contraction ability. The wall thickness of the annular hook 102 is set to be 0.3 - 0.8 times the average wall thickness of the cover body 100, preferably 0.66 times, to endow the annular hook 102 with better elasticity. The annular hook 102 is a one-way engaging structure, which bends from the outside to the inside. The annular hook 102 is also formed by hot stamping. When the annular hook 102 inside the cover body 100 is pressed towards the container 300, it will be squeezed towards the surrounding by the lip-shaped part of the container neck. Once it crosses the neck of the container 300, the annular hook 102 will restore its shape. The force for the annular hook 102 to clamp tightly with the container neck is set to be very large, and this force is much greater than the force required to tear the top cover 400. The clamping force is 2 - 20 times the force to tear the top cover 400. Therefore, there will be no situation where the cover body 100 is accidentally pulled out of the container 300 when tearing the top cover 400.

[0078] The rubber plug 200 is composed of a rubber plug head 201 and a rubber plug body 202. The rubber plug 200 is a circular structure, and the top of the upper elastic arm is engaged with the bottom surface of the rubber plug head 201.

[0079] The diameter of the rubber plug head 201 is larger than the diameter of the central hole 101 and smaller than the diameter of the open hole at the bottom of the cover body 100. The diameter of the rubber plug body 202 is smaller than the diameter of the neck of the container 300.

[0080] Both the cover body 100 and the top cover 400 are circular or barrel-shaped structures, which can be applied to all containers 300 with a circular neck having a lip-shaped outer edge. Containers 300 of this shape are also commonly used. Moreover, the circular structure enables this device to eliminate the need for angular positioning. There is no need for angular positioning between the cover body 100 and the rubber plug 200, between the cover body 100 and the container 300, and between the top cover 400 and the cover body 100.

[0081] The assembly steps of a locking cover assembled by hot stamping are as follows:

[0082] Step 1: Insert the bottom skirt 401 of the top cover 400 into the central hole 101 at the top of the body 100. The skirt 401 of the top cover 400 and the opening of the body 100 are both in the shape of a complete circumferential ring, and no angular positioning is required.

[0083] Step 2: Use a profiling hot stamping tool to perform hot stamping on the skirt 401 from one side at the bottom, causing it to deform outwards. After hot stamping, the end of the skirt 401 opens and deforms outwards to form a trumpet structure, which causes the top cover 400 and the body 100 to snap together.

[0084] Step 3: The rubber plug 200 and the container 300 are pre-assembled by insertion. Press the top cover 400 and the body 100 after hot stamping assembly against the neck of the container 300. The internal annular hook 102 of the body 100 passes over the neck of the container 300. After reaching the snap-fit position, the shape of the hook is restored. The annular hook 102 is set as a one-way hook and cannot be disassembled once snapped. At this time, the rubber plug 200 is firmly pressed by the body 100 into the container 300. The neck of the container 300 is in a ring structure and no angular positioning is required.

[0085] Step 4: The assembly is completed.

[0086] The usage steps of a locking cover assembled by hot stamping are as follows:

[0087] Step 1: Grasp the side of the top cover 400 and pull the skirt 401 of the top cover 400 out of the central hole 101 of the body 100. The shielding of the rubber plug 200 is removed, and at this time, an instrument such as a syringe can be used to pierce the rubber plug 200 to take out the pharmaceutical agent in the container 300.

[0088] Step 2: After use, the skirt 401 of the top cover 400 comes out of the central hole 101 of the body 100. Due to hot stamping deformation, the outer diameter of the end of the skirt 401 is larger than the central hole 101 at the top of the body 100 and cannot be reinserted into the hole, ensuring that the device is for single use.

[0089] The above embodiments only represent several implementation manners of the present invention, and the description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the appended claims.

Claims

1. A locking cover assembled by hot stamping, the locking cover comprising a cover body (100), a rubber plug (200), a container (300) and a top cover (400), wherein the rubber plug (200) is placed inside the cover body (100), the top cover (400) is located on the top of the cover body (100), and the cover body (100) is sleeved with the neck of the container (300), characterized in that: The cover body (100) is a hollow structure, and a center hole (101) is provided at the center position of the top. The center hole (101) leads from the top to the rubber plug (200). The center hole (101) is used to leave a passage for the syringe needle. The bottom is an open hole for receiving the container (300). The top cover (400) is a circular thin sheet. A skirt (401) extends vertically downward from the bottom of the top cover (400) near the center hole (101). The skirt (401) is connected to the cover body ( The central hole (101) of the housing (100) is matched and connected, and an annular hook (102) is extended from the lower part of the housing (100), and an annular neck (301) is provided on the upper end of the container (300). When assembled, the annular hook (102) is engaged with the annular neck (301), wherein a raised annular positioning ring (104) is provided on the periphery of the central hole (101), and the annular positioning ring (104) is located inside the housing (100) and is integrated with the housing (100). The diameter of the annular positioning ring (104) is smaller than the diameter of the rubber plug head (201), wherein, after assembly, the diameter of the bottom of the skirt (401) is larger than the diameter of the center hole (101) of the cover body (100), and the top cover (400) and the cover body (100) can be easily torn apart. After separation, the skirt (401) of the top cover (400) is out of the cover body (100), and because it has been deformed by heat, the end of the skirt (401) is opened, and the size of the skirt (401) is larger than the cover body. The top of the cover body (100) is opened, and the cover body (100) cannot be reinserted. In the free state, the skirt (401) and the center hole (101) of the cover body (100) are clearance-matched. When the hot-scalding deformation treatment is not performed, the diameter of the skirt (401) is slightly smaller than the diameter of the center hole (101) of the cover body (100), and the clearance is 0-2 mm. The skirt (401) is hot-scalded from the bottom side, and the skirt (401) opens to the surroundings after hot-scalding.

2. The locking cover assembled by hot stamping as claimed in claim 1, characterized in that: In the free state, the structure of the skirt (401) is a complete ring that is easy to process and assemble.

3. The locking cover assembled by hot stamping as claimed in claim 1, characterized in that: In the free state, the distance that the skirt (401) extends vertically downward is 0.1 to 2 times its diameter, and the wall thickness of the skirt (401) is 0.3 to 1.5 times the thickness of the thin sheet at the top of the top cover (400).

4. The locking cover assembled by hot stamping as claimed in claim 1, characterized in that: The skirt (401) and the central hole (101) of the cover body (100) are opened to form a trumpet shape after being hot-ironed. The trumpet shape enables the top cover (400) and the cover body (100) to be engaged with each other to form a sealed whole.

5. The locking cover assembled by hot stamping as claimed in claim 1, characterized in that: The side wall of the central hole (101) of the cover body (100) is an inclined surface, and the angle between the inclined surface and the vertical direction is 20°-70°. After the skirt (401) is hot-ironed, it is deformed and opened toward the inclined surface, and finally abuts against the inclined surface. The opening angle of the skirt (401) is consistent with the angle of the inclined surface, and the opening angle is 20°-70°.

6. The locking cover assembled by hot stamping as claimed in claim 1, characterized in that: The top cover (400) is made of an elastic plastic material. The elastic plastic material allows the skirt (401) of the top cover (400) to have elastic contraction capability. When the top cover (400) is torn, the opened skirt (401) can be contracted inwards and come out of the central hole (101) of the cover body (100).

7. The locking cover assembled by hot stamping as claimed in claim 1, characterized in that: The locking cover is a locking cover that can be opened with one hand.

8. The locking cover assembled by hot stamping as claimed in claim 1, characterized in that: The upper portion of the cover body (100) is provided with a circle of inclined surfaces (103), the angle between the inclined surfaces (103) and the vertical direction is 20°-60°, and the inclined surfaces (103) form a triangular depression between the cover body (100) and the top cover (400), and the depression becomes a hand-gripping position when tearing the top cover (400), and the depression depth is 0.2-5 mm.

9. The locking cover assembled by hot stamping as claimed in claim 1, characterized in that: The cover body (100) is made of an elastic plastic material, and the wall thickness of the annular hook (102) is set to be 0.3-0.8 times the average wall thickness of the cover body (100). The annular hook (102) is a one-way clamping structure, and the annular hook (102) is bent from the outside to the inside. The annular hook (102) is also formed by hot stamping. The force of the annular hook (102) clamping to the container neck is greater than the force required to tear off the top cover (400), and the clamping force is 2-20 times the force required to tear off the top cover (400).

10. The locking cover assembled by hot stamping as claimed in claim 1, characterized in that: The rubber plug (200) consists of a rubber plug head (201) and a rubber plug body (202). The rubber plug (200) is an annular structure, and the top of the upper elastic arm is engaged with the bottom surface of the rubber plug head (201).

11. The locking cover assembled by hot stamping as claimed in claim 1, characterized in that: The diameter of the plug head (201) is larger than the diameter of the central hole (101) and smaller than the diameter of the open hole at the bottom of the cover body (100), and the diameter of the plug body (202) is smaller than the diameter of the neck of the container (300).

12. The locking cover assembled by hot stamping as claimed in claim 1, wherein: The cover body (100) and the top cover (400) are both annular or barrel-shaped structures, and the cover body (100) and the rubber plug (200), the cover body (100) and the container (300), and the top cover (400) and the cover body (100) do not require angular positioning.

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