Double-diameter sealing sliding rotary glue outlet bottle cap and glue bottle

Abstract

The invention discloses a double-diameter sealed sliding rotary glue outlet bottle cap and a glue bottle, the double-diameter sealed sliding rotary glue outlet bottle cap comprises an inner cap and an outer cap, the inner cap comprises a connecting seat I, a flow guide inner cylinder and a guide cylinder I, the bottom end part of the inner cap extends into a connecting and screwing section and extends to the bottom end of the flow guide inner cylinder, and a section of sealing boss for reinforcing sealing is arranged on the outer circumferential surface of the top of the guide cylinder I; a buffering cavity is formed in the connecting screwing section, the top end of the first guide cylinder is connected with a top core, the outer cover comprises a second connecting base and a second guide cylinder, the bottom end of the second guide cylinder is provided with an annular concave cavity facilitating clamping of the sealing boss, and the top end of the second guide cylinder is provided with a top sleeve matched with the top core. Through the design of double-layer guiding rotary sliding sealing, a reliable sealing system is constructed, external air is effectively prevented from entering, a good storage environment is provided for glue, it is ensured that the glue is stable in performance in the storage process, the shelf life of the glue is greatly prolonged, and cost is saved for a user.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of glue packaging devices, in particular to a double-diameter sealing sliding and rotating glue bottle cap and glue bottle. BACKGROUND

[0002] Glue is widely used in various production and life, and the glue bottle cap is a key component to ensure the quality and use experience of glue. The performance of the glue bottle cap is very important. However, the current mainstream traditional glue bottle cap on the market adopts a single-layer structure, and only a single outer cap is used for sealing. This simple design exposes many problems in actual application, such as poor sealing, glue easily locked at the outer cap due to gelation, which seriously affects normal use; unreasonable glue dispensing method, glue easily flows into the cavity during rotation, causing blockage; sliding and glue locking functions are difficult to balance, either easy to leak glue during transportation or difficult to open and close; and the density of some cap assembly does not meet the standard, affecting the overall performance and product quality.

[0003] To make up for the defects of sealing by a single outer cap, a patent with publication number CN209410726U discloses a cap and glue bottle. The cap includes an outer cap and an inner cap. The outer cap includes a first outer cap cylindrical through hole, a second outer cap cylindrical through hole and a third outer cap cylindrical through hole arranged coaxially in a stepped manner. The inner cap includes a first cylindrical protruding part, a second cylindrical protruding part and a top pin arranged coaxially from bottom to top. The first cylindrical protruding part forms a first inner cap cylindrical through hole inside, and the second cylindrical protruding part forms a second inner cap cylindrical through hole inside which is through the first inner cap cylindrical through hole. The first cylindrical protruding part is threadedly connected with the first outer cap cylindrical through hole, the second cylindrical protruding part is sealingly connected with the second outer cap cylindrical through hole, and the top pin is sealingly connected with the third outer cap cylindrical through hole. The technology uses the rotating mode of the outer cap and the inner cap to make the glue flow in the second outer cap cylindrical through hole, the third outer cap cylindrical through hole and the second inner cap cylindrical through hole, and the gelation and locking of the cap are avoided.

[0004] However, although the above-mentioned patent cover successfully overcomes the problem of traditional cover being easily locked due to gelation in the structural design, and brings certain convenience to the user, the direct assembly structure design makes it have obvious defects, and it performs poorly in sealing and bottle cap stability. In terms of sealing, the direct assembly structure lacks multi-level and fine sealing protection, and simple lamination between components cannot cope with complex environments. According to professional testing, the sealing performance is far from meeting the industry's strict standards, and external air can easily penetrate into the bottle, affecting the quality and service life of the glue; in terms of bottle cap stability, during transportation and handling, in the face of inevitable external pressure, the direct assembly structure has no effective buffer and fixing mechanism, and the cover and the bottle body are easy to produce relative displacement, causing the sealing part to loosen, the thread to misalign, and then a gap to appear, ultimately causing the glue leakage problem, which not only causes glue waste and increases cost, but also pollutes the transportation environment and other goods, bringing many problems. SUMMARY

[0005] The purpose of the present application is to overcome the defects and deficiencies of the prior art, and to provide a double-diameter sealing sliding rotary glue outlet bottle cap and glue bottle, which solves the various problems existing in the prior art.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0007] A double-diameter sealing sliding rotary glue outlet bottle cap, comprising an inner cap and an outer cap, the inner cap and the outer cap are both three-segment structures, respectively comprising a connection and screwing segment, a sealing and guiding segment and a top core segment corresponding to each other;

[0008] The connection and screwing segment of the inner cap is a connection seat one, the outer circumferential surface of the connection seat one is provided with an outer thread for screwing with the outer cap, and the inner cavity is provided with a connection thread for screwing with the mouth of the bottle body and a flow guiding inner cylinder for cooperating with the bottle mouth, the sealing and guiding segment of the inner cap is a hollow guiding cylinder one structure, the bottom end part of which extends into the connection and screwing segment and extends to the bottom end of the flow guiding inner cylinder, a sealing boss for strengthening sealing is arranged on the top outer circumferential surface of the guiding cylinder one, a buffer cavity is formed in the connection and screwing segment, and the top end of the guiding cylinder one is connected with the top core of the top core segment through a connecting rib;

[0009] The connection and screwing segment of the outer cap is a connection seat two screwing with the connection seat one, the inner cavity of the connection seat two is provided with an inner thread, the sealing and guiding segment of the outer cap is a guiding cylinder two guiding and cooperating with the guiding cylinder one, the bottom end part of the guiding cylinder two is provided with an annular recess cavity for facilitating the sealing boss to be clamped in, and the top end of the guiding cylinder two is provided with a top sleeve cooperating with the top core.

[0010] The gap between the sealing boss and the inner hole of the guide cylinder is 0.01mm to 0.08mm, so as to ensure the sealing effect and flexible movement, and the length of the sealing boss is 0.3-0.8 times of the length of the sliding surface and the diameter of the guide cylinder.

[0011] The outer thread of the first connecting seat and the inner thread of the second connecting seat are a double thread structure matched with each other, the spiral directions of the double threads are consistent, the pitches of the double threads are the same, the starting points and the ending points of the two threads are staggered by a certain angle in the circumferential direction, and the intermediate segment spiral line forms a common rail overlapping area, so as to realize stress dispersion and connection reinforcement through alternating bearing.

[0012] The angle by which the starting point and the ending point of the double thread structure are staggered is dynamically calculated according to the relationship between the matching length of the thread pair and the pitch, and the specific angle calculation method is as follows:

[0013] When the matching length is an integer multiple of the pitch

[0014] If the matching length H of the thread pair is exactly equal to an integer multiple of the pitch P (i.e. H=P×N, N is an integer), the circumferential direction angle θ between the starting point of the outer thread and the starting point of the inner thread is equal to the initial set angle α, α is the design reference angle, at this time, the inner and outer threads are completely overlapped, but the contact point dynamically changes through subsequent processing or assembly process;

[0015] When the matching length is not an integer multiple of the pitch

[0016] If H=P×N+X, N is an integer, and X is the remainder, the remainder X needs to be converted into an angle β, so that the starting point and the ending point of the inner double thread and the outer thread are staggered by β angle, and the calculation formula is:

[0017] β=(PX)×360°

[0018] At this time, the circumferential direction angle between the starting point and the ending point of the outer thread and the inner thread is:

[0019] θ=α+β

[0020] The bottom end of the guide cylinder two is provided with an arc-shaped baffle extending into the buffer cavity, the arc-shaped baffle cooperates with the buffer cavity, and the buffer cavity is provided with a limiting rib for limiting the rotation of the arc-shaped baffle to prevent the inner cover and the outer cover from being unscrewed.

[0021] The bottom end surface of the arc-shaped baffle is an inclined surface, and the inclined surface direction is inclined from front to back.

[0022] The outer circumferential surface of the second connecting seat is distributed with vertically arranged anti-skid ribs arranged at intervals.

[0023] The bottom end face edge of the connecting seat two is connected with a prefabricated safety ring, the bottom end of the safety ring is provided with a limiting clamping groove in the circumferential direction, and the bottom end of the connecting seat one is provided with a limiting lug matched with the limiting clamping groove in the circumferential direction.

[0024] The glue bottle of the bottle cap comprises a bottle body, the mouth of the bottle body is provided with a connecting internal thread for screwing with an internal thread of an inner cap, a limiting boss for limiting the inner cap is arranged on the bottle body between the connecting internal thread and the bottle body in the circumferential direction, and the bottom end of the bottle body is provided with a base with a pressing handle.

[0025] The base is a hollow cylinder structure, the outer side of the lower end of the cylinder is provided with a horn-shaped shell, the inner side of the cylinder is provided with a spring piece for clamping the bottle body in the circumferential direction, one side of the horn-shaped shell is connected with a pressing handle, the pressing handle is arranged obliquely outward, the oblique angle of the pressing handle is 15-30 degrees, which matches the pressing angle of the natural force direction of the thumb of the human body, and the inner side of the pressing handle is provided with a top block for limiting the bottle body.

[0026] Compared with the prior art, the beneficial effects of the present application are:

[0027] The sealing cover of the present application adopts a rotary glue discharging mode in the glue discharging mode, optimizes the glue flow path, makes the glue discharging process smoother, avoids the glue blockage of the cavity, and ensures that the glue cannot flow into the cavity; the user does not need to worry about the problem of poor glue discharging or glue waste during use, and can more efficiently and conveniently complete the glue discharging operation, thereby improving the work efficiency.

[0028] The structure of the sealing boss on the upper end of the guide cylinder one on the sealing guide section of the inner cap and the outer cap divides the guide cylinder one into two parts, the radius of the uppermost sealing boss is slightly larger, and the radius of the lower one is slightly smaller, which cleverly balances the functions of sliding and locking glue; the sealing boss with a slightly larger radius enhances the firmness of the locking glue, effectively prevents the glue from leaking due to extrusion during transportation and handling, and plays a good protection role; at the same time, the design conforms to the principle of aerodynamics, so that the air in the cavity flows easily, reduces the resistance during sliding, facilitates the user to open and close the sealing cover, realizes the perfect combination of smooth sliding and firm locking of glue, and solves the problem that the traditional sealing cover is difficult to balance the two.

[0029] In addition, the safety ring fixed outside the sealing cover is packaged by a machine, which is precise, further enhances the stability and reliability of the sealing cover, and provides the user with a better use experience. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 The present application is a structural schematic diagram;

[0031] Figure 2A structure diagram after tearing off the safety ring;

[0032] Figure 3 A sectional view of the present application;

[0033] Figure 4 A Figure 3 An enlarged view of the local structure at A in the middle;

[0034] Figure 5 A Figure 3 An enlarged view of the local structure at B in the middle;

[0035] Figure 6 A structure diagram of the inner cover;

[0036] Figure 7 A top view of the inner cover.

[0037] Reference signs:

[0038] 1, inner cover; 11, connecting seat one; 12, flow guide inner cylinder; 13, guide cylinder one; 14, sealing boss; 15, buffer cavity; 16, connecting rib; 17, top core; 18, limiting lug; 2, outer cover; 21, connecting seat two; 22, guide cylinder two;

[0039] 23, annular recess; 24, arc-shaped baffle; 25, limiting rib; 26, top sleeve; 27, anti-skid convex rib; 28, safety ring; 29, limiting clamping groove; 3, bottle body; 31, limiting boss; 4, pressing handle; 41, base; 42, elastic sheet; 43, pressing handle; 44, top block. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0041] Reference will be made to the drawings in the embodiments of the present application. Figures 1-2 ;

[0042] The application discloses a double-diameter sealing sliding rotary glue-discharging bottle cap, which comprises an inner cap and an outer cap, and the inner cap and the outer cap are both three-section structures and comprise a connecting screwing section, a sealing guiding section and a top core section which are matched with each other respectively; the connecting screwing section of the inner cap is a connecting seat one 11, the outer circumferential surface of the connecting seat one 11 is provided with external threads matched with the outer cap, the inner cavity is provided with connecting threads matched with the mouth of a bottle body and a flow guiding inner cylinder 12 matched with the mouth of the bottle body, the sealing guiding section of the inner cap is a hollow guiding cylinder one 13 structure, the bottom end of the guiding cylinder one 13 extends into the connecting screwing section and extends to the bottom end of the flow guiding inner cylinder 12, a sealing boss 14 for strengthening sealing is arranged on the top outer circumferential surface of the guiding cylinder one 13, a buffer cavity 15 is formed in the connecting screwing section, and the top end of the guiding cylinder one 13 is connected with a top core 17 of the top core section through a connecting rib 16; the connecting screwing section of the outer cap is a connecting seat two 21 matched with the connecting seat one 11 in a threaded manner, the inner cavity of the connecting seat two 21 is provided with internal threads, the sealing guiding section of the outer cap is a guiding cylinder two 22 matched with the guiding cylinder one 13 in a guiding manner, the bottom end of the guiding cylinder two 22 is provided with an annular recessed cavity 23 for facilitating the clamping of the sealing boss 14, and the top end of the guiding cylinder two 22 is provided with a top sleeve 26 matched with the top core 17. Through the stepped structure of the sealing boss 14 and the guiding cylinder one 13, the sealing boss 14 with a slightly larger radius can be more easily matched with the guiding cylinder two 22 in a close manner, so that glue leakage is prevented and glue locking is more convenient; through the design of the annular recessed cavity 23, the guiding sleeve of the guiding cylinder one is facilitated, and the user operation is facilitated; meanwhile, the double-diameter design is more in line with aerodynamics, helps to optimize the air flow in the bottle cap, reduces the sliding resistance, and makes the bottle cap more flexible and easy to use.

[0043] Further, the gap between the sealing boss 14 and the inner hole of the guiding cylinder two 22 is 0.01mm to 0.08mm, so as to ensure the sealing effect and the flexible movement, the length of the sealing boss 14 is 0.3-0.8 times the length of the sliding surface and the diameter of the guiding cylinder one 13, the radius ratio of the two parts can be adjusted to optimize the overall structure of the bottle cap, so that the bottle cap is more solid, durable or light and portable. Meanwhile, the boss also bears the guiding function, and the length thereof needs to meet the demand of the guiding stability and ensure the anti-bias load capacity during the guiding movement. Meanwhile, the cap body is generally made of plastic material, so the guiding cylinder one also has a certain elasticity, so that the guiding cylinder one can be deformed under external force and can restore the original size and shape after the external force is removed. In the design of the bottle cap, the application of the elastic material enables the bottle cap to be deformed when subjected to external force such as extrusion and rotation, so as to facilitate glue discharging and operation; when the external force disappears, the bottle cap can quickly restore the original state and maintain the sealing performance. The elastic property not only improves the use convenience of the bottle cap, but also enhances the sealing effect of the bottle cap.

[0044] Furthermore, the external thread of connector 11 and the internal thread of connector 21 are a double-threaded structure that fits together perfectly. This double thread not only maintains the same helical direction to ensure uniform force during connection, but also has a strictly identical pitch, guaranteeing smooth and precise thread engagement. In particular, the consistent helical direction and identical pitch of the double threads, along with the consistent starting points of the two thread segments (such as...) Figure 7 The center marks P1 and P2) and the termination point are offset at a certain angle in the circumferential direction, while the spiral section in the middle forms a common track overlap area. This design allows the threads to alternately bear pressure during the connection process, effectively dispersing the stress borne by a single thread, significantly enhancing the stability and fatigue resistance of the connection. Even under frequent disassembly and assembly or under large external forces, the reliability of the connection can be maintained. In addition, the double-layer guide rotary sliding seal design constructs a reliable sealing system, effectively preventing the entry of external air, providing a good storage environment for the adhesive, and preventing oxidation and deterioration. This ensures the stability of the adhesive's performance during storage, greatly extending the shelf life of the adhesive, saving costs for users, reducing waste caused by adhesive failure, saving the cost of frequent adhesive replacement, and improving efficiency and economy.

[0045] In the double-threaded structure, the angle between the starting and ending points is dynamically calculated based on the relationship between the thread pair's mating length and the pitch. The specific angle calculation method is as follows:

[0046] When the mating length is an integer multiple of the pitch

[0047] If the thread pair mating length H is exactly equal to an integer multiple of the pitch P, i.e., H = P × N, where N is an integer, then the circumferential angle θ between the starting point of the external thread and the starting point of the internal thread is equal to the initial set angle α, where α is the design reference angle. At this time, the internal and external threads completely coincide, but the contact point can be dynamically changed through subsequent processing or assembly processes.

[0048] When the mating length is not an integer multiple of the pitch

[0049] If H = P × N + X, where N is an integer and X is the remainder, then the remainder X needs to be converted into an angle β so that the starting and ending points of the internal double thread and the external thread are offset by an angle β. The calculation formula is as follows:

[0050] β=(PX)×360°

[0051] At this point, the circumferential angle between the starting and ending points of the external thread and the internal thread is:

[0052] θ = α + β.

[0053] For example: If the pitch P = 1mm and the fit length H = 5.25mm, then N = 5 and X = 0.25mm. Substituting these values ​​into the formula, we get:

[0054] β = (10.25) x 360° = 90°, that is, the outer thread starting point needs to be staggered by 90° in the circumferential direction; by staggering the angle by 90 degrees, the thread pair forms alternating contact dynamic support during screwing, and the staggered angle increases the number of contact points, which is equivalent to increasing the effective friction angle, thereby improving the self-locking performance.

[0055] Further, the bottom end of the guide cylinder two 22 is provided with an arc-shaped baffle 24 extending into the buffer cavity 15. The arc-shaped baffle 24 cooperates with the buffer cavity 15, and the buffer cavity 15 is provided with a limiting rib 25 for limiting the rotation of the arc-shaped baffle 24 to prevent the inner cover 1 and the outer cover 2 from being unscrewed. The position of the limiting rib 25 is the position of the front end of the arc-shaped baffle in the buffer cavity when the inner cover 1 and the outer cover 2 are about to be unscrewed. The bottom end surface of the arc-shaped baffle 24 is a slope, and the slope direction is inclined from front to back. The arc-shaped baffle 24 is carefully designed at the bottom end of the guide cylinder two 22, which is arc-shaped and extends into the buffer cavity 15, and forms a close cooperation structure with the buffer cavity. In the actual working process, when the inner cover 1 and the outer cover 2 are screwed, the arc-shaped baffle 24 will rotate with the guide cylinder two. The buffer cavity 15 is specially provided with a limiting rib 25, which limits the rotation range of the arc-shaped baffle 24. Specifically, when the inner cover 1 and the outer cover 2 are about to be unscrewed, the limiting rib 25 is just at the position of the front end of the arc-shaped baffle in the buffer cavity, thereby effectively preventing the inner cover and the outer cover from being further unscrewed, avoiding the separation of the cover due to accidental operation. This design not only ensures the stability of the cover during screwing, prevents it from being unscrewed due to excessive rotation, but also improves the safety and reliability of the product, providing more reliable protection for users.

[0056] Further, the outer circumferential surface of the connecting seat two 21 is distributed with vertically arranged anti-skid ribs 27 arranged at intervals. A preformed safety ring 28 is connected to the edge of the bottom end surface of the connecting seat two 21, and a limiting lug 18 corresponding to the limiting clamping groove 29 is arranged on the bottom end of the connecting seat one 11. The outer circumferential surface of the connecting seat two 21 is carefully designed with vertically arranged anti-skid ribs 27 arranged at intervals. These ribs not only enhance the friction when the hand is operated to prevent slipping and ensure that the connecting seat two 21 can be firmly held during connection or disassembly, but also improve the durability of the overall structure. At the edge of the bottom end surface of the connecting seat two 21, a preformed safety ring 28 is ingeniously connected, which is a key component of safety protection, and a limiting clamping groove 29 is arranged on the bottom end of the safety ring. At the same time, a limiting lug 18 corresponding to the limiting clamping groove 29 is arranged on the bottom end of the connecting seat one 11. When the two connecting seats are connected, the limiting lug 18 will be embedded in the limiting clamping groove 29 to achieve precise positioning and stable connection. In particular, the length of the limiting clamping groove 29 is designed to be greater than 1 times and less than 2 times the width of the limiting lug 18. Such size ratio not only ensures the firmness of the connection to prevent accidental falling, but also allows the two components to be separated by slight rotation or stretching when necessary, which is convenient for maintenance and replacement, and reflects the humanization and practicality of the design.

[0057] A glue bottle comprises a bottle body 3, and the mouth of the bottle body 3 is provided with a connecting internal thread for screwing with an internal cover 1. The screw thread design enables the internal cover 1 to be tightly and stably screwed on the bottle body 3, effectively preventing leakage of the contents in the bottle. A limiting boss 31 for limiting the internal cover 1 is arranged in the circumferential direction between the connecting internal thread and the bottle body. When the internal cover 1 is screwed to the appropriate position, the limiting boss 31 blocks the internal cover 1 from continuing to rotate, thereby achieving precise positioning and preventing over-tightening, and avoiding damage to the bottle body 3 or the internal cover 1 due to over-tightening;

[0058] The bottom end of the bottle body 3 is provided with a base 41 for a pressing handle 4. The base 41 is a hollow cylindrical structure, and the outer side of the lower end of the cylinder is provided with a flared shell. This design increases the force receiving area during pressing, making the pressing operation more comfortable and labor-saving. The inner side of the cylinder is provided with a spring piece 42 for clamping the bottle body in the circumferential direction. The spring piece 42 has a certain elasticity, and when the base 41 is fitted on the bottom end of the bottle body 3, the spring piece 42 tightly clamps the bottle body 3, ensuring that the base 41 and the bottle body 3 are connected stably and will not easily fall off during use. In order to ensure the stability of the base fitting, a ring-shaped recess can be provided at the bottom of the bottle body, and the ring-shaped recess is limited by the spring piece 42. A base limiting rib is arranged on the upper end of the ring-shaped recess, and the base can be fitted in place by directly pressing the base.

[0059] The side of the horn-shaped shell is connected with a pressing handle 43, which is arranged obliquely outward, and the oblique angle of the pressing handle 43 is 15-30 degrees. The angle is carefully designed to match the natural pressing angle of the ergonomics of the thumb. When the user presses the pressing handle 43 with the thumb, the most natural and comfortable posture can be used to exert force, effectively reducing hand fatigue. The inner side of the pressing handle 43 is provided with a top block 44 for fixing the bottle body. When the pressing handle 43 is pressed, the top block 44 uniformly applies pressure to the bottle body, so that the material in the bottle can smoothly and stably flow out, improving the convenience and efficiency of use.

[0060] The above structure needs to follow a precise assembly process to ensure product function reliability during specific implementation. First, the inner cover 1 and the outer cover 2 are assembled: the operator aligns the threaded end of the inner cover 1 with the double helix guide groove of the outer cover 2, and rotates clockwise with uniform force. The double helix structure is specially designed to ensure smooth rotation and precise control of the rotation stroke through the thread depth. When the inner cover 1 is rotated to about 80% depth, the arc-shaped stopper 24 (made of high-elastic engineering plastic) on the inner wall of the outer cover 2 will form an elastic engagement with the limiting rib 25 on the side wall of the inner cover 1. At this time, the operator can feel a significant change in resistance, indicating that the pre-assembly position has been reached.

[0061] Then, the final pressing assembly is performed: the operator uniformly presses the outer cover 1 with the hand, and a "click" sound is heard to complete the locking. The double-thread structure is used to overcome the assembly and pressing to the right position. In this stage, the pressing stroke is precisely controlled by the limiting column of the assembly tool to ensure that the clearance between the components meets the design requirements.

[0062] The semi-automatic assembly line is used in the batch packaging link: the assembled cover group is arranged in order by the vibration disc, and the mechanical hand precisely grabs the cover by the vacuum suction cup. The suction pressure is adjusted to avoid damaging the three positioning teeth on the red inner cover. The safety ring 28 is melted by ultrasonic welding process, and the melting parameters are precisely controlled to ensure that the melting surface is flat without flash, forming a reliable sealing structure.

[0063] When combined with the bottle body, the cover group is rotated and combined with the bottle mouth in a vertical posture. During the rotation process, uniform force is maintained, and the compression state of the bottle mouth sealing ring is observed. Then, the base 41 of the pressing handle 4 is sleeved from the bottle bottom, and the guide rib of the base is precisely matched with the groove of the bottle body to ensure that there is no axial movement or radial shaking after assembly.

[0064] The operation process is as follows: when the safety ring 28 is torn, it needs to be completely peeled along the pre-cut line to avoid affecting the subsequent sealing performance. When in use, the safety ring 28 is torn, the rotating outer cover is connected, then the thumb of one hand presses the top of the handle 4, the glue is uniformly extruded through the conical glue outlet, the amount of glue can be adjusted by the pressing force. After the glue is applied, stop pressing the handle 4, the handle automatically rebounds and resets, the outer cover 2 is reversely rotated, and the above operation is repeated for next use. The whole operation process meets the ergonomic design, and each step is naturally smooth. No additional tools are needed to complete the entire operation.

[0065] Although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution. The description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can be combined appropriately to form other embodiments that can be understood by those skilled in the art.

[0066] Therefore, the above description is only a preferred embodiment of the present application, and is not intended to limit the scope of the present application; that is, various equivalent transformations made within the scope of the claims of the present application are within the protection scope of the claims of the present application.

Claims

1. A double diameter sealing sliding rotary squeeze bottle cap, comprising an inner cap (1) and an outer cap (2), characterized in that: The inner cover (1) and the outer cover (2) are all three-section structures, and each comprises a connecting screwing section, a sealing guiding section and a top core section which correspond to each other respectively; The connecting screwing section of the inner cover (1) is a connecting seat one (11), the outer circumferential surface of the connecting seat one (11) is provided with external threads which are screwed with the outer cover, the inner cavity is provided with connecting threads which are screwed with the bottle body mouth and a flow guiding inner cylinder (12) which cooperates with the bottle mouth, the sealing guiding section of the inner cover (1) is a hollow guiding cylinder one (13) structure, the bottom end part of which extends into the connecting screwing section and extends to the bottom end of the flow guiding inner cylinder (12), the top outer circumferential surface of the guiding cylinder one (13) is provided with a sealing boss (14) for strengthening sealing, a buffer cavity (15) is formed in the connecting screwing section, and the top end of the guiding cylinder one (13) is connected with a top core (17) of the top core section through a connecting rib (16); The connecting screwing section of the outer cover (2) is a connecting seat two (21) which is screwed with the connecting seat one (11), the inner cavity of the connecting seat two (21) is provided with internal threads, the sealing guiding section of the outer cover (2) is a guiding cylinder two (22) which cooperates with the guiding cylinder one (13), the bottom end part of the guiding cylinder two (22) is provided with an annular recess cavity (23) which facilitates the clamping of the sealing boss (14), and the top end of the guiding cylinder two (22) is provided with a top sleeve (26) which cooperates with the top core (17).

2. The dual diameter seal, sliding, rotary, post mold bottle closure of claim 1 wherein, The gap between the sealing boss (14) and the inner hole of the guiding cylinder two (22) is 0.01mm to 0.08mm, so as to ensure the sealing effect and the flexible movement, and the length of the sealing boss (14) is 0.3-0.8 times the diameter of the guiding cylinder one (13).

3. The dual bead sealing, sliding, rotary, post-bottling, cap of claim 1 wherein, The external threads of the connecting seat one (11) and the internal threads of the connecting seat two (21) are double thread structures which cooperate with each other, and the spiral directions of the double threads are consistent and the pitches are the same, the starting points and the ending points of the two thread sections are offset by a certain angle in the circumferential direction, and the spiral lines of the middle section form a common rail overlapping area, so as to realize stress dispersion and connection strengthening through alternating bearing.

4. The dual bead sealing, sliding, rotary, post-bottling, cap of claim 3, wherein, The angle by which the starting points and the ending points of the double thread structure are offset is dynamically calculated according to the relationship between the matching length of the thread pair and the pitch, and the specific angle calculation method is as follows: When the matching length is an integer multiple of the pitch If the matching length H of the thread pair is exactly equal to the integer multiple of the pitch P (i.e. H=P×N, N is an integer), the circumferential direction angle θ between the starting point of the external thread and the starting point of the internal thread is equal to the initial setting angle α, α is the design reference angle, at this time, the internal and external threads are completely overlapped, but the contact point dynamically changes through subsequent processing or assembly process; When the matching length is not an integer multiple of the pitch If H=P×N+X, N is an integer, and X is the remainder, the remainder X needs to be converted into an angle β, so that the starting points and the ending points of the internal and external threads are offset by β angle, and the calculation formula is: β=(PX)×360°. At this time, the circumferential direction angle between the starting points and the ending points of the external and internal threads is: θ=α+β.

5. The dual bead sealing, sliding, rotary, depot bottle closure of claim 1 wherein, The bottom end of the guide cylinder two (22) is provided with an arc-shaped baffle (24) extending into the buffer cavity (15), the arc-shaped baffle (24) cooperates with the buffer cavity (15), and the buffer cavity (15) is provided with a limiting rib (25) for limiting the rotation of the arc-shaped baffle (24) to prevent the inner cover (1) and the outer cover (2) from being unscrewed and separated, the limiting rib (25) is located at the position of the front end of the arc-shaped baffle in the buffer cavity when the inner cover (1) and the outer cover (2) are about to be unscrewed and separated.

6. The dual bead sealing, sliding, rotary, depot bottle closure of claim 5 wherein, The bottom end surface of the arc-shaped baffle (24) is a slope, and the slope direction inclines from front to back.

7. The dual bead sealing, sliding, rotary, depot bottle closure of claim 1 wherein, The outer circumferential surface of the connecting seat two (21) is distributed with vertically arranged anti-skid convex ribs (27) arranged at intervals.

8. The dual bead sealing, sliding, rotary, depot bottle closure of claim 1 wherein, The bottom end surface edge of the connecting seat two (21) is connected with a preformed safety ring (28), the bottom end of the safety ring (28) is provided with a limiting clamping groove (29) in the circumferential direction, and the bottom end of the connecting seat one (11) is provided with a limiting lug (18) corresponding to the limiting clamping groove (29) in the circumferential direction.

9. A glue bottle based on the bottle cap of claim 1, characterized in that, The glue bottle based on claim 1 comprises a bottle body (3), the mouth of the bottle body (3) is provided with a connecting internal thread for screwing with the internal cover (1), the lower part of the connecting internal thread is provided with a limiting convex platform (31) for limiting the internal cover (1) between the bottle body, and the bottom end of the bottle body (3) is provided with a base (41) sleeved with a pressing handle (4).

10. The glue bottle of claim 9, wherein, The base (41) is a hollow cylinder structure, the outer side of the lower end of the cylinder is provided with a horn-shaped shell, the inner side of the cylinder is provided with a spring piece (42) for clamping the bottle body in the circumferential direction, one side of the horn-shaped shell is connected with a pressing handle (43), the pressing handle (43) is inclined outward, the inclination angle of the pressing handle (43) is 15-30 degrees, which matches the natural pressing angle of the ergonomics thumb, and the inner side of the pressing handle (43) is provided with a top block (44) for limiting the bottle body.

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