Discharging structure of packaging hose

Abstract

The utility model discloses a discharging structure of a packaging hose, which realizes the linkage of an outer cover and a discharging assembly and improves the structural stability between the outer cover and a hose body, and comprises the outer cover, an outer connector, an inner connector and the hose body, a discharge hole is formed in the end part of the pipe body; the inner connector sleeves the peripheral surface of the end part of the pipe body in a threaded connection manner and is provided with a discharging channel; the discharging channel is communicated with or not communicated with the discharging hole along with the rotation of the inner connector on the pipe body; the outer connector is rotationally arranged at the end part of the pipe body in a sleeving manner to cover the inner connector and is axially limited with the pipe body; the inner connector and the outer connector rotate synchronously and slide axially in the outer connector; the outer cover is sleeved on the outer connector in a synchronous rotating manner, and is propped against the step arranged on the peripheral surface of the pipe body; a limiting bulge is arranged on the side wall of the step; the inner wall of the outer cover is provided with a buckle ring groove and an anti-disengaging protrusion arranged on the buckle ring groove and close to the groove bottom. The limiting protrusion crosses the anti-disengaging protrusion and then enters the buckle ring groove, and the anti-disengaging protrusion is tightly matched with the side wall of the step.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging hoses, in particular to a discharging structure of a packaging hose. Background Art

[0002] Packaging hoses are commonly found in technical fields such as cosmetics and medical supplies, and are used to contain liquid and colloidal contents. Users can extrude a certain amount of the contents by a simple squeezing action for use.

[0003] Currently on the market, packaging hoses are usually equipped with detachable discharging components to achieve different forms of content extrusion. Usually, when a user needs to operate or replace the discharging component, the outer cover covering the discharging component needs to be removed. At this time, the user's hand will directly contact the discharging component, and the hand may be soiled during the operation or replacement of the discharging component, resulting in a poor user experience.

[0004] Therefore, in subsequent product improvements, the manufacturer links the outer cover with the discharging component, and the user can directly twist the outer cover to open and close the discharging component, avoiding direct contact between the hand and the discharging component. However, in similar structures, the outer cover is mainly indirectly fixed to the tube body through a synchronous rotation mechanism (usually a flange and a clamping groove) between the outer cover and the discharging component, and there is no direct cooperation between it and the tube body, making it easy to loosen from the tube body, resulting in leakage of the contents of the packaging hose. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a discharging structure of a packaging hose, solve the problems existing in the prior art, realize the linkage between the outer cover and the discharging component, and improve the structural stability between the outer cover and the tube body.

[0006] To achieve the above object, the solution of the utility model is:

[0007] A discharging structure of a packaging hose includes an outer cover, an outer connector, an inner connector, and a tube body; a discharging hole is provided at the end of the tube body; the inner connector is threadedly sleeved on the peripheral surface of the end of the tube body and is provided with a discharging channel; the discharging channel is communicated or not communicated with the discharging hole as the inner connector rotates on the tube body; the outer connector is rotatably sleeved on the end of the tube body to cover the inner connector and is axially limited with the tube body; the inner connector rotates synchronously with the outer connector and axially slides in the outer connector; the outer cover is rotatably sleeved on the outer connector synchronously and abuts against a step provided on the peripheral surface of the tube body; a limiting protrusion is provided on the side wall of the step; a snap ring groove is provided on the inner wall of the outer cover, and an anti-loosening protrusion is provided near the bottom of the snap ring groove; after the limiting protrusion passes over the anti-loosening protrusion, it enters the snap ring groove, and the anti-loosening protrusion is tightly fitted on the side wall of the step.

[0008] A groove is provided at the end of the pipe body, a convex post is provided in the groove, and a discharge hole is provided at the bottom of the groove; the inner connector is provided with a convex ring matching the groove, and the convex ring is embedded in the groove; the convex post is coaxially arranged with the discharge channel, and the end of the discharge channel is opened and closed by the axial sliding of the inner connector.

[0009] Preferably, an external thread is provided on the outer wall of the groove, and an internal thread matching the external thread is provided on the inner connector.

[0010] Preferably, a sealing ring is formed by extending the end of the discharge channel opposite to the convex post along the axial direction of the discharge channel, and the end of the convex post is movably embedded in the sealing ring.

[0011] Preferably, the number of the discharge holes is more than one, and the discharge holes are arranged at equal angular intervals around the convex post.

[0012] A first anti-rotation groove is provided on the circumferential surface of the inner connector; a first anti-rotation rib is provided on the inner wall of the outer connector and is slidably engaged in the first anti-rotation groove.

[0013] A limiting convex ring is provided on the circumferential surface of the pipe body, a limiting groove matching the limiting convex ring is provided on the inner wall of the outer connector, and the limiting groove is embedded in the limiting convex ring.

[0014] A matching second anti-rotation groove and a second anti-rotation rib are provided between the inner wall of the outer cover and the circumferential surface of the outer connector; or a matching anti-fooling groove and an anti-fooling protrusion are provided between the inner wall of the outer cover and the circumferential surface of the outer connector.

[0015] Preferably, a first indication mark and a second indication mark are respectively provided on the outer wall of the outer cover and the outer wall of the outer connector for indicating the assembly direction of the outer cover and the outer connector.

[0016] The discharge structure of the packaging hose further includes a flocked inner plug and a flocked sleeve; the flocked inner plug is sleeved on a discharge pipe provided at the discharge end of the inner connector and is tightly fitted with the inner wall of the outer connector; the flocked sleeve is sleeved on the flocked inner plug, and the end of the outer connector abuts against the flocked sleeve.

[0017] After adopting the above technical solutions, the utility model has the following technical effects:

[0018] (1) The discharge assembly of the packaging hose is composed of an outer connector and an inner connector, and is detachable relative to the pipe body, which is convenient for users to replace different forms of discharge assemblies;

[0019] (2) The outer cover can drive the inner connector through the outer connector, enabling the user to directly rotate the outer cover when the outer cover is closed, so that the inner connector moves axially, and further enabling the discharge channel to communicate with or be disconnected from the discharge hole, thereby realizing the opening and closing of the discharge assembly;

[0020] (3) The user can directly grasp the outer cover with force to remove the outer connector;

[0021] (4) Any operation of the user can be carried out when the outer cover is closed, without contacting the discharge assembly, thus avoiding getting hands dirty;

[0022] (5) Axial limit between the outer cover and the tube body is achieved through the cooperation of the limit protrusion and the snap ring groove, and anti - sway is achieved in cooperation with the anti - detachment protrusion, making it difficult for the outer cover to become loose from the tube body. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is an exploded view of a specific embodiment of the present utility model;

[0024] Figure 2 is an overall cross - sectional view of a specific embodiment of the present utility model;

[0025] Figure 3 is a cross - sectional view of the outer cover of a specific embodiment of the present utility model;

[0026] Figure 4 is a cross - sectional view of the outer connector of a specific embodiment of the present utility model;

[0027] Figure 5 is a cross - sectional view of the inner connector of a specific embodiment of the present utility model;

[0028] Figure 6 is a cross - sectional view of the tube body of a specific embodiment of the present utility model;

[0029] Figure 7 is a schematic diagram of the anti - fool design of the outer cover and the outer connector of a specific embodiment of the present utility model;

[0030] DESCRIPTION OF THE REFERENCE NUMBERS IN THE DRAWINGS:

[0031] 1 - outer cover; 11 - snap ring groove; 12 - anti - detachment protrusion; 13 - second anti - rotation groove; 14 - anti - fool groove; 15 - first indication mark;

[0032] 2 - outer connector; 21 - first anti - rotation rib; 22 - limit groove; 23 - second anti - rotation rib; 24 - anti - fool groove; 25 - second indication mark;

[0033] 3 - inner connector; 31 - discharge channel; 32 - convex ring; 33 - sealing ring; 34 - first anti - rotation groove; 35 - discharge pipe;

[0034] 4 - Tube body; 41 - Discharge hole; 42 - Step; 421 - Limit projection; 43 - Groove; 44 - Convex column; 45 - Limit convex ring;

[0035] 5 - Flocked inner plug;

[0036] 6 - Flocked sleeve. Specific embodiments

[0037] In order to further explain the technical solution of the present invention, the present invention will be elaborated in detail below through specific embodiments.

[0038] Refer to Figures 1-7 As shown, the present invention discloses a discharge structure of a packaging hose, including an outer cover 1, an outer connector 2, an inner connector 3 and a tube body 4;

[0039] A discharge hole 41 is provided at the end of the tube body 4;

[0040] The inner connector 3 is sleeved on the peripheral surface of the end of the tube body 4 in a threaded connection and is provided with a discharge channel 31; the discharge channel 31 is communicated or not communicated with the discharge hole 41 as the inner connector 3 rotates on the tube body 4;

[0041] The outer connector 2 is rotatably sleeved on the end of the tube body 4 to cover the inner connector 3 and is axially limited with the tube body 4; the inner connector 3 rotates synchronously with the outer connector 2 and axially slides in the outer connector 2;

[0042] The outer cover 1 is rotatably sleeved on the outer connector 2 and abuts against the step 42 provided on the peripheral surface of the tube body 4; a limit projection 421 is provided on the side wall of the step 42; a snap ring groove 11 is provided on the inner wall of the outer cover 1, and an anti - detachment projection 12 is provided near the bottom of the snap ring groove 11;

[0043] After the limit projection 421 passes over the anti - detachment projection 12 and enters the snap ring groove 11, axial limitation of the outer cover 1 at the end of the tube body 4 is achieved; the anti - detachment projection 12 is tightly fitted on the side wall of the step 42 to increase the friction between the outer cover 1 and the tube body 4 and prevent the outer cover 1 from shaking and loosening.

[0044] Through the above - mentioned solution, the present invention has the following technical effects:

[0045] (1) The outer connector 2 and the inner connector 3 form a discharge assembly of the packaging hose and are detachable relative to the tube body 4, which is convenient for users to replace different forms of discharge assemblies;

[0046] (2) The outer cover 1 can drive the inner connector 3 through the outer connector 2, so that the user can directly rotate the outer cover 1 when the outer cover 1 is closed, causing the inner connector 3 to move axially, and further making the discharge channel 31 communicate or not communicate with the discharge hole 41, realizing the opening and closing of the discharge assembly;

[0047] (3) The user can directly grip the outer cover 1 forcefully to remove the outer connector 2;

[0048] (4) Any operation of the user can be carried out when the outer cover 1 is closed, without contacting the discharging component, thus avoiding soiling the hands;

[0049] (5) Axial limit between the outer cover 1 and the tube body 4 is achieved through the cooperation of the limit protrusion 421 and the snap ring groove 11, and anti-loosening is achieved by cooperating with the anti-disengagement protrusion 12, so that the outer cover 1 is not easily loosened from the tube body 4.

[0050] The following shows specific embodiments of the present utility model.

[0051] A groove 43 is provided at the end of the above-mentioned tube body 4, a convex column 44 is provided in the groove 43, and the above-mentioned discharging hole 41 is provided at the bottom of the groove 43; the inner connector 3 is provided with a convex ring 32 matching the groove 43, and the convex ring 32 is embedded in the groove 43; the convex column 44 is coaxially arranged with the discharging channel 31, and the end of the discharging channel 31 is opened and closed by the axial sliding of the inner connector 3, so as to realize the connection or disconnection between the discharging hole 41 and the discharging channel 31. The convex ring 32 and the groove 43 can not only play a sealing role between the tube body 4 and the inner connector 3, but also play a certain guiding role in the axial sliding of the inner connector 3 to ensure the functional stability of the product. In this embodiment, an external thread is provided on the outer wall of the above-mentioned groove 43, and a corresponding internal thread is provided on the inner connector 3, so as to realize the threaded connection between the inner connector 3 and the tube body 4.

[0052] Further, a sealing ring 33 is formed at the end of the discharging channel 31 opposite to the convex column 44 along the axial direction of the discharging channel 31, and the end of the convex column 44 is movably embedded in the sealing ring 33. Through the surface sealing between the inner wall of the sealing ring 33 and the circumferential surface of the convex column 44, the sealing effect can be improved and it is not easy to leak liquid.

[0053] At the same time, a plurality of the above-mentioned discharging holes 41 can be provided, and are arranged at equal angular intervals around the convex column 44. By providing a plurality of discharging holes 41, the flow rate during the extrusion of the content can be increased.

[0054] The circumferential surface of the inner connector 3 is provided with a first anti-rotation groove 34; the inner wall of the outer connector 2 is provided with a first anti-rotation rib 21 that is slidably fitted in the first anti-rotation groove 34. Through the cooperation of the first anti-rotation rib 21 and the first anti-rotation groove 34, the outer connector 2 and the inner connector 3 can realize synchronous rotation, so that when the user twists the outer cover 1, the inner connector 3 is linked by the outer connector 2; at the same time, due to the axial limit between the outer connector 2 and the tube body 4, the inner connector 3 is covered by the outer connector 2 and will not fall off the tube body 4, and the inner connector 3 is threadedly connected to the tube body 4, which will produce axial movement relative to the tube body 4 / the outer connector 2 when rotating, so the cooperation of the first anti-rotation rib 21 and the first anti-rotation groove 34 can also play a guiding role.

[0055] The circumference of the tube body 4 is provided with a limiting convex ring 45, and the inner wall of the outer connector 2 is provided with a limiting groove 22 matching the limiting convex ring 45, and the limiting groove 22 is embedded in the limiting convex ring 45, so that the outer connector 2 can rotate on the circumference of the tube body 4 but cannot move axially. After the threads of the inner connector 3 and the end of the tube body 4 are disengaged, the outer connector 2 can be separated from the tube body 4 by forcing it to tilt relative to the tube body 4, so as to achieve disassembly.

[0056] See also Figures 3-4 A matching second anti-rotation groove 13 and a second anti-rotation rib 23 are provided between the inner wall of the outer cover 1 and the circumferential surface of the outer connector 2 to achieve synchronous rotation of the outer cover 1 and the outer connector 2. Alternatively, see Figure 7 The inner wall of the outer cover 1 and the circumference of the outer connector 2 are provided with matching foolproof grooves 14 and foolproof protrusions 24, which can also realize synchronous rotation of the outer cover 1 and the outer connector 2, and can limit the unique installation direction of the outer cover 1 and the outer connector 2 to realize the foolproof function. Of course, the foolproof function can also be realized when only one pair of the second anti-rotation grooves 13 and the second anti-rotation ribs 23 are provided.

[0057] Furthermore, the outer wall of the outer cover 1 and the outer wall of the external connector 2 are respectively provided with a first indicator mark 15 and a second indicator mark 25 for indicating the assembly direction of the outer cover 1 and the external connector 2. When the first indicator mark 15 and the second indicator mark 25 are opposite to each other, the structure between the outer cover 1 and the external connector 2 (i.e., the second anti-rotation groove 13 and the second anti-rotation rib 23 or the fool-proof groove 14 and the fool-proof protrusion 24 of the upper section) can be aligned and closed, so that the outer cover 1 can be quickly covered.

[0058] The utility model also includes a flocking sleeve inner plug 5 and a flocking sleeve 6; the flocking sleeve inner plug 5 is sleeved on the discharge pipe 35 provided at the discharge end of the inner connector 3, and is tightly matched with the inner wall of the outer connector 2; the flocking sleeve 6 is sleeved on the flocking sleeve inner plug 5, and the end of the outer connector 2 abuts against the flocking sleeve 6 to fix the flocking sleeve 6 and its flocking sleeve inner plug 5 to prevent both from falling off the inner connector 3.

[0059] The above-mentioned limiting protrusions 421 can be several granular protrusions arranged at equal angular intervals on the side wall of the step 42, or can be a circular protrusion arranged on the side wall of the step 42. Refer to Figure 1 , in this embodiment, the limiting protrusion 421 is a granular protrusion.

[0060] The above embodiments and diagrams do not limit the product form and style of the present invention. Any appropriate changes or modifications made by those of ordinary skill in the relevant technical field shall be regarded as not departing from the patent scope of the present invention.

Claims

1. A discharging structure for a packaging hose, characterized in that: It includes an outer cover, an outer connector, an inner connector and a tube body; A discharging hole is provided at the end of the tube body; The inner connector is sleeved on the peripheral surface of the end of the tube body in a threaded connection and is provided with a discharging channel; the discharging channel is communicated or not communicated with the discharging hole as the inner connector rotates on the tube body; The outer connector is rotatably sleeved on the end of the tube body to cover the inner connector and is axially limited with the tube body; the inner connector rotates synchronously with the outer connector and axially slides within the outer connector; The outer cover is rotatably sleeved on the outer connector synchronously and abuts against a step provided on the peripheral surface of the tube body; a limiting protrusion is provided on the side wall of the step; a snap ring groove is provided on the inner wall of the outer cover, and an anti - detachment protrusion is provided near the bottom of the snap ring groove; After the limiting protrusion passes over the anti - detachment protrusion, it enters the snap ring groove, and the anti - detachment protrusion is tightly fitted on the side wall of the step.

2. The discharging structure for a packaging hose according to claim 1, characterized in that: A groove is provided at the end of the tube body, a convex column is provided in the groove, and the discharging hole is provided at the bottom of the groove; the inner connector is provided with a convex ring matching the groove, and the convex ring is embedded in the groove; the convex column is coaxially arranged with the discharging channel and opens and closes the end of the discharging channel as the inner connector axially slides.

3. The discharging structure for a packaging hose according to claim 2, characterized in that: External threads are provided on the outer wall of the groove, and internal threads matching the external threads are provided on the inner connector.

4. The discharging structure for a packaging hose according to claim 2, characterized in that: The end of the discharging channel opposite to the convex column extends axially along the discharging channel to form a sealing ring, and the end of the convex column is movably embedded in the sealing ring.

5. The discharging structure for a packaging hose according to claim 2, characterized in that: The number of the discharging holes is more than one and is arranged at equal - angle intervals around the convex column.

6. The discharging structure for a packaging hose according to claim 1, characterized in that: A first anti - rotation groove is provided on the peripheral surface of the inner connector; a first anti - rotation rib strip slidably fitted in the first anti - rotation groove is provided on the inner wall of the outer connector.

7. The discharging structure for a packaging hose according to claim 1, characterized in that: A limiting convex ring is provided on the peripheral surface of the tube body, a limiting groove matching the limiting convex ring is provided on the inner wall of the outer connector, and the limiting groove is embedded in the limiting convex ring.

8. The discharging structure for a packaging hose according to claim 1, characterized in that: A matching second anti - rotation groove and second anti - rotation rib strip are provided between the inner wall of the outer cover and the peripheral surface of the outer connector; or a matching anti - fooling groove and anti - fooling protrusion are provided between the inner wall of the outer cover and the peripheral surface of the outer connector.

9. The discharging structure for a packaging hose according to claim 8, characterized in that: The outer wall of the outer cover and the outer wall of the outer connector are respectively provided with a first indication mark and a second indication mark for indicating the assembly direction of the outer cover and the outer connector.

10. The discharging structure of the packaging hose according to claim 1, wherein: It further includes a flocked inner plug and a flocked sleeve; the flocked inner plug is sleeved on a discharge pipe arranged at the discharge end of the inner connector and is in tight fit with the inner wall of the outer connector; the flocked sleeve is sleeved on the flocked inner plug, and the end of the outer connector abuts against the flocked sleeve.

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