Anti-loosening fixing structure suitable for flange-tap bottle body

Abstract

Disclosed is an anti-loosening fixing structure for a flange-tap bottle body (2), comprising a fixing body (1). A bottle body (2) is mounted in the fixing body (1); a flange structure (8) is arranged at an upper end of the bottle body (2); a limiting ring (3) is arranged at an upper end of the fixing body (1); side limiting assemblies (4) are distributed in a mirror image mode on the limiting ring (3); an upper receiving space of the bottle body (2) is formed between the side limiting assemblies (4); an elastic support structure (5) is arranged at the upper end of the fixing body (1) and located in the upper receiving space of the bottle body (2); the upper end of the fixing body (1) further extends with a guide ring (6); upper limiting assemblies (7) are distributed in the mirror image mode on the guide ring (6); the flange structure (8) is in contact with the upper limiting assemblies (7). Therefore, by means of three-way clamping and limiting of the side limiting assemblies (4), the elastic support structure (5), and the upper limiting assemblies (7), the solid combination of the bottle body (2) and the fixing body (1) is ensured without shaking. The upper limiting assemblies (7) can guide the flange structure (8) to move forward and limit the flange structure after the flange structure (8) is located at a proper position, thereby meeting irreversible guide limiting and ensuring that the bottle body (2) cannot be loosened from the fixing body (1).

Description

[0001] The present invention relates to a fixing structure, and in particular to an anti-loosening fixing structure suitable for a bottle body having a flange interface. BACKGROUND

[0002] Currently, conventional syringes perform corresponding fixing on a bottle body for storing medicaments, by means of a fixing body. However, due to a fit tolerance, the bottle body tends to move up and down or sway from side to side relative to the fixing body when subjected to an external force. In this way, there is a risk that the bottle body may break due to impact if the external force is relatively large. If the bottle body is mounted relying solely on filling the fit tolerance, an interference fit may easily occur during a bonding period, resulting in the bottle body not being mounted in place.

[0003] Besides, in order to limit the bottle body, prior art 202010947075.6 has modified a mounting inner sleeve, specifically “a syringe fixing cylinder is provided at the top of the mounting inner sleeve, and a fixing claw is provided inside the syringe fixing cylinder for fixing a fixing flange of the syringe cylinder; in order to facilitate snap-in of the fixing flange, a beveled surface is provided on the upper surface of the fixing claw, and the outer side of the fixing claw is connected to the wall surface of the syringe fixing cylinder; and when the fixing flange is snapped in, the fixing claw is flipped downwards around an outside fixing portion to enable the fixing flange to be snapped in smoothly.” Such structure only realizes a simple longitudinal restriction of the bottle body, but cannot perform transversal displacement binding. Further, when the fixing flange is snapped in, the fixing claw may be jammed, resulting in the bottle body not being able to be mounted smoothly.

[0004] Similarly, the prior art 202021975875.0 also adopts a similar construction, which also has the defects described above.

[0005] In view of the defects, the present designer has been performing active research and innovation for the purpose of creating an anti-loosening fixing structure suitable for a bottle body having a flange interface, so as to make them have high utilization value in the industry. SUMMARY

[0006] In order to solve the technical problem, the present invention aims to provide an antiloosening fixing structure suitable for a bottle body having a flange interface.

[0007] The anti-loosening fixing structure suitable for a bottle body having a flange interface in the present invention includes a fixing body, where a bottle body is mounted in the fixing body, a limiting ring is provided at the upper end of the fixing body, side limiting components which are in a mirror distribution are provided on the limiting ring, a storage space for the upper end of the bottle body is formed between the side limiting components, an elastic support structure is provided in the storage space for the upper end of the bottle body, at the upper end of the fixing body, the upper end of the fixing body further extends to form a guiding cycle, upper end limiting components are in a mirror distribution on the guiding cycle, the flange structure is provided at the upper end of the bottle body, and the flange structure is in contact with the upper end limiting components.

[0008] Further, in the anti-loosening fixing structure for a bottle body having a flange interface, each of the side limiting components is an elastic blocking block.

[0009] Furthermore, in the anti-loosening fixing structure for a bottle body having a flange interface, each of the elastic blocking blocks is a block in the shape of a rectangular sheet, and an arc chamfer is provided at the top end of the blocking block in the shape of a rectangular sheet.

[0010] Furthermore, in the anti-loosening fixing structure for a bottle body having a flange interface, the elastic support structure is an elastic support arm, the elastic support arm includes an elastic cross-piece connected to the fixing body, an arm body is vertically provided on the elastic cross-piece, and a support block is provided at the upper end of the arm body.

[0011] Furthermore, in the anti-loosening fixing structure for a bottle body having a flange interface, each of the upper end limiting components is an oblique limiting valve, and an oblique contact slope is provided at the bottom of each oblique limiting valve.

[0012] Furthermore, in the anti-loosening fixing structure for a bottle body having a flange interface, the flange structure is a circular-mouth flange.

[0013] Furthermore, in the anti-loosening fixing structure for a bottle body having a flange interface, the flange structure is a notched flange.

[0014] By virtue of the above solution, the present invention has at least the following advantages:

[0015] 1. Through three-way clamping limiting by the side limiting components, the elastic support structure, and the upper end limiting components, a solid combination of the bottle body and the fixing body can be ensured without swaying.

[0016] 2. The upper end limiting components can guide the flange structure to move forwards and limit the flange structure after the flange structure is in a proper position, thereby satisfying irreversible guiding limiting and ensuring that the bottle body cannot be loosened from the fixing body.

[0017] 3. By providing an independent elastic support structure, assembly stress absorption is satisfied while an effective downward limiting is realized, such that a solid bottom support can be achieved for the flange structure.

[0018] 4. The anti-loosening fixing structure is simple in overall structure, the existing fixing body can be reformed and replaced, and the anti-loosening fixing structure is adapted to the current various types of conventional syringe constructions, and has a relatively great universality.

[0019] The above description is only a summary of the technical solution of the present invention, and in order to be able to more clearly understand the technical means of the present invention, and enable the technical means to be implemented in accordance with the contents of the specification, the following will be described in detail by using a preferred example of the present invention in combination with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] FIG. lisa schematic structural diagram illustrating a fixing body.

[0021] FIG. 2 is a schematic structural diagram illustrating distribution of upper end limiting components.

[0022] FIG. 3 is a schematic structural diagram illustrating a bottle body having a notched flange.

[0023] FIG. 4 is a schematic structural diagram illustrating a bottle body having a circular-mouth flange.

[0024] FIG. 5 is a schematic structural diagram illustrating combination of a bottle body and a fixing body.

[0025] The meaning of each of the reference numerals in the figures is as follows. 1 Fixing body 2 Bottle body 3 Limiting ring 4 Side limiting component 5 Elastic support structure 6 Guiding cycle 7 Upper end limiting component 8 Flange structure 9 Elastic cross-piece 10 Arm body 11 Support block DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The foilowing specific embodiments of the present invention are described in further detail in connection with the accompanying drawings and embodiments. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0027] As shown in FIGs. 1-5, an anti-loosening fixing structure suitable for a bottle body having a flange interface includes a fixing body 1, where a bottle body 2 is mounted in the fixing body 1, and a flange structure 8 is provided at the upper end of the bottle body 2; the anti-loosening fixing structure is characterized in that a limiting ring 3 is provided at the upper end of the fixing body 1, side limiting components 4 which are in a mirror distribution are provided on the limiting ring 3, and a storage space for the upper end of the bottle body 2 is formed between the side limiting components 4. In this way, effective lateral limiting can be performed on the upper end of the bottle body 2 after the bottle body 2 is placed smoothly, thereby avoiding non-essential transverse movement of the upper end. Besides, an elastic support structure 5 is provided at the upper end of the fixing body 1 that is located in the storage space for the upper end of the bottle body 2, such that the upper end of the bottle body 2 can be lifted properly, thereby satisfying bottom limiting on the upper end of the bottle body 2. Besides, in the present invention, the upper end of the fixing body 1 further extends to form a guiding cycle 6, upper end limiting components 7 are in mirror distribution on the guiding cycle 6, and the flange structure 8 is in contact with the upper end limiting components 7. Thus, after the bottle body 2 is placed in place, the upper end of the bottle body 2 is simultaneously subjected to three-way clamping limiting by the side limiting components 4, the elastic support structure 5, and the upper end limiting components 7 without swaying.

[0028] In conjunction with a preferred embodiment of the present invention, it can be seen that each adopted side limiting components 4 is an elastic blocking block. Specifically, each of the elastic blocking blocks is a block in the shape of a rectangular sheet, and an arc chamfer is provided at the top end of the block in the shape of a rectangular sheet. In this way, hands may not be scratched during manual assembly, and no non-essential interference with other components may not be caused during assembly and use.

[0029] Further, the elastic support structure 5 adopted in the present invention is an elastic support arm. In this way, during assembly, even if the upper end of the bottle body 2 is pressed excessively, the elastic support structure can provide effective rebound support, thereby avoiding the bottle body 2 from overextending into the fixing body 1 to be jammed. Specifically, the elastic support arm includes an elastic cross-piece 9 connected to the fixing body 1, an arm body 10 is vertically provided on the elastic cross-piece 9, and a support block 11 is provided at the upper end of the arm body 10. In this way, when the bottle body 2 is subjected to downward stress, the stress may be released by means of deformation of the elastic cross-piece 9. Besides, a moderate rebound can be achieved to give a better support.

[0030] In connection with practical implementation, the used upper end limiting components 7 are oblique limiting valves, and an oblique contact slope is provided at the bottom of each oblique limiting valve. In this way, appropriate elastic deformation can be performed when the bottle body 2 passes through the oblique limiting valves, thereby causing the oblique limiting valves to be squeezed to two sides. After the bottle body 2 fully enters the fixing body 1, the oblique limiting valves reset, and the oblique contact slope is located exactly at the top of the upper end of the bottle body 2, such that effective limiting can be achieved. Thus, longitudinal limiting can be performed timely after the bottle body 2 is mounted in place.

[0031] Further, it can be seen from that the used flange structure 8 is the circular-mouth flange or the notched flange when taking into account different limiting requirements for the bottle body 2. Thus, better limiting can be achieved by using the circular-mouth flange or the notched flange to match with the side limiting components 4, the elastic support structure 5, and the upper end limiting components 7. During assembly, for the bottle body 2 of the circular-mouth flange, the direction does not need to be paid attention to, but a straight edge of the bottle body 2 of the notched flange must be parallel to the elastic support structure 5. Besides, it is noted that the flange structure 8 used in the present invention may also be in the shape of a semicircle, a hexagon, and the like, and as long as the flange structure in a flange configuration in the shape larger than an opening in the upper end of the container is suitable for the present invention, which may not be repeated herein. At the same time, a suitable limiting ring configuration can be selected according to the corresponding shape of the flange structure 8.

[0032] The present invention adopts the following working principle:

[0033] the bottle body 2 is inserted into the fixing body 1, stress is applied to the bottle body 2, the upper end limiting components 7 deform after being subjected to the stress, and the upper end limiting components 7 close up toward two sides of the guiding cycle 6 to form a clearance space. Accompanying applying the stress to the bottle body 2, the flange structure 8 passes through the clearance space and then is in contact with the elastic support structure 5. At the moment of contact, the elastic support structure 5 deforms due to the stress and reset back immediately, thereby limiting the flange structure 8 from moving further forwards. Finally, the upper end limiting components 7 and the elastic support structure 5 can perform up and down limiting on the flange structure 8, thereby ensuring that the entire bottle body 2 does not sway up and down. Besides, relying on lateral limiting of the side limiting components 4, there is also no lateral swaying.

[0034] In combination with the above descriptions and the figures, after adopting the present invention, the anti-loosening fixing structure has the following advantages:

[0035] 1. Through three-way clamping limiting by the side limiting components, the elastic support structure, and the upper end limiting components, a solid combination of the bottle body and the fixing body can be ensured without swaying.

[0036] 2. The upper end limiting components can guide the flange structure to move forwards and limit the flange structure after the flange structure is in a proper position, thereby satisfying irreversible guiding limiting and ensuring that the bottle body cannot be loosened from the fixing body.

[0037] 3. By providing an independent elastic support structure, assembly stress absorption is satisfied while an effective downward limiting is realized, such that a solid bottom support can be achieved for the flange structure.

[0038] 4. The anti-loosening fixing structure is simple in overall structure, the existing fixing body can be reformed and replaced, and the anti-loosening fixing structure is adapted to the current various types of conventional syringe constructions, and has a relatively great universality.

[0039] Furthermore, indicated orientations or positional relationships described in the present invention are orientations or positional relationships as shown in the accompanying drawings, and are intended only to facilitate the description of the present invention and to simplify the description, and are not intended to indicate or imply that the device or configuration referred to has to have a particular orientation or to operate in a particular orientation configuration, and therefore are not to be construed as a limitation of the present invention.

[0040] The terms “primary” and “secondary” are used for description only and are not to be understood as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as “primary” or “secondary” may include one or more such features, either explicitly or implicitly. In the description of the present invention, “several” means two or more, unless otherwise expressly and specifically limited.

[0041] Similarly, the terms “first” and “second” are used for description only and are not to be understood as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature limited by “the first” and “the second” may include one or more such features, either explicitly or implicitly. In the description of the present invention, "a plurality of means two or more, unless otherwise defined.

[0042] In the present invention, unless otherwise expressly provided and limited, the terms “connection”, “setup” and the like shall be broadly construed, for example, it may be a fixed connection, a detachable connection, or integral connection; it may be a mechanical connection, an electrical connection; it may be a direct connection, an indirect connection through an intermediate medium; and it may be a connection between two components or an interaction between two components. For a person of ordinary skill in the art, the specific meaning of the above terms in the present invention may be understood on a case-by-case basis. It can be directly on another component or indirectly on another component. When a component is said to be “connected to” another component, it may be directly connected to another component or 5 indirectly connected to another component.

[0043] It should be noted that the orientations or positional relationships indicated by the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on those shown in the accompanying drawings, intended only for the convenience of describing the present invention and for simplifying the 10 description, and not intended to indicate or imply that the referred device or component must be provided with a particular orientation or constructed and operated with a particular orientation, therefore not allowed to be construed as a limitation of the present invention.

[0044] The foregoing is only a preferred embodiment of the present invention and is not intended to limit the present invention, and it should be noted that, for a person of ordinary skill in the art, 15 several improvements and variations can be made without departing from the technical principles of the present invention, which should also be considered as the scope of protection of the present invention.

Claims

1. An anti-loosening fixing structure suitable for a bottle body having a flange interface, comprising a fixing body, a bottle body being mounted in the fixing body, and a flange structure being provided at the upper end of the bottle body, wherein a limiting ring is provided at the upper end of the fixing body, side limiting components which are in a mirror distribution are provided on the limiting ring, a storage space for the upper end of the bottle body is formed between the side limiting components, an elastic support structure is provided in the storage space for the upper end of the bottle body, at the upper end of the fixing body, the upper end of the fixing body further extends to form a guiding cycle, upper end limiting components are in a mirror distribution on the guiding cycle, and the flange structure is in contact with the upper end limiting components.

2. The anti-loosening fixing structure for a bottle body having a flange interface of claim 1, wherein each of the side limiting components is an elastic blocking block.

3. The anti-loosening fixing structure for a bottle body having a flange interface of claim 2, wherein each of the elastic blocking blocks is a block in the shape of a rectangular sheet, and an arc chamfer is provided at the top end of the block in the shape of a rectangular sheet.

4. The anti-loosening fixing structure for a bottle body having a flange interface of claim 1, wherein the elastic support structure is an elastic support arm, the elastic support arm comprises an elastic cross-piece connected to the fixing body, an arm body is vertically provided on the elastic cross-piece, and a support block is provided at the upper end of the arm body.

5. The anti-loosening fixing structure for a bottle body having a flange interface of claim 1, wherein each of the upper end limiting components is an oblique limiting valve, and an oblique contact slope is provided at the bottom of each oblique limiting valve.

6. The anti-loosening fixing structure for a bottle body having a flange interface of claim 1, wherein the flange structure is a circular-mouth flange.

7. The anti-loosening fixing structure for a bottle body having a flange interface of claim 1, wherein the flange structure is a notched flange.

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