Glue outlet cover body mechanism and glue outlet device comprising same

Abstract

The utility model discloses a glue discharging cover body mechanism and a glue discharging device comprising the same. The glue discharging cover body mechanism structurally comprises a first cover body, a second cover body and a rotary cover body, the first cover body is connected with the glue bottle, and the rotary cover body is screwed and covered with the first cover body; a glue channel and a first glue outlet communicated with the glue channel are formed in the first cover body, and a plugging head is arranged at the upper part of the first glue outlet; a second glue outlet is formed in the second cover body, the second cover body is in linkage connection with the rotary cover body, and the rotary cover body can circumferentially rotate relative to the second cover body and can drive the second cover body to axially move up and down relative to the first cover body; the first glue outlet is communicated with the second glue outlet, so that glue flows out or the second glue outlet is plugged by the plugging head; the mechanism has the advantages that in the glue outlet opening and closing process, large-force drawing or pressing is not needed, opening and closing can be achieved only through screwing, and more labor is saved in operation.

Description

Technical Field

[0001] This application relates to the technical field of glue dispensing structures, specifically to a glue dispensing cap mechanism and a glue dispensing device containing the same. Background Technology

[0002] Glue is a widely used adhesive material, typically stored in glue bottles for use and sealing. For example, patent ZL202220884644.1 discloses an anti-clogging cap structure for glue bottles. This cap structure uses a cap that can be pulled and pressed back and forth axially relative to the bottle cap, allowing the cap to be opened for glue application or closed for sealing. However, while this structure allows opening and closing of the glue bottle outlet by operating the cap, the actual operation involves pulling and pressing the cap axially back and forth. The method involves setting protrusions on the inner wall of the cap and correspondingly setting two raised strips on the outer wall of the bottle cap to which it engages. By pulling and pressing, the protrusions and raised strips at different positions are brought closer together to achieve the opening and closing action. Therefore, this type of cap is very difficult to operate and is not suitable for young people or people with weak strength. Moreover, if the force is not controlled properly, the cap may detach directly from the connecting post, causing glue to leak out. In addition, this repeated pulling and pressing operation may cause wear between the protrusions and raised strips, affecting the accurate positioning of the opening and closing position. Utility Model Content

[0003] In view of the above-mentioned shortcomings of the prior art, this application provides a dispensing cap mechanism that allows the dispensing port to open and close without the need for forceful pulling or pressing, but only by twisting, making operation more labor-saving.

[0004] To solve the above-mentioned technical problems, the technical solution adopted in this application is as follows: a glue dispensing cap mechanism, the structure of which includes a first cap, a second cap, and a rotating cap; the first cap is connected to a glue bottle, and the rotating cap is screwed onto the first cap; the first cap is provided with a glue channel and a first glue outlet communicating with it, and a sealing head is provided at the upper part of the first glue outlet; the second cap is provided with a second glue outlet, the second cap and the rotating cap are linked and connected, the rotating cap can rotate circumferentially relative to the second cap, and can drive the second cap to move axially up and down relative to the first cap, so that the first glue outlet and the second glue outlet communicate to allow glue to flow out or to allow the sealing head to seal the second glue outlet.

[0005] Using the above structure, this application provides a rotating cover between the first cover and the second cover, which is linked together with the second cover, so that they can rotate relative to each other in the circumferential direction and move synchronously up and down in the axial direction. The rotating cover is screwed onto the first cover. When a screwing force is applied to the rotating cover so that it rises axially relative to the first cover, it will drive the second cover that is fastened to it to rise axially as well, while the second cover does not rotate circumferentially. During this process, the second cover slides upward relative to the first cover in the axial direction, and the sealing head of the second cover relative to the first cover creates an upper and lower drop difference, so that the second glue outlet on the second cover and the first glue outlet on the first cover are connected, and glue can be dispensed for use. When the cover is rotated in the opposite direction, the second cover that is fastened to it will also descend axially, while the second cover will not rotate circumferentially. During this process, the second cover slides downward relative to the first cover, and the sealing head on the first cover enters the second glue outlet to seal it. Therefore, this cover mechanism of the present application does not require pulling or pressing the second cover back and forth during the process of sealing and opening the glue. It can be opened and closed simply by rotating the cover, which is more labor-saving and can be used even by young people or people with weak strength. Moreover, this rotating up and down lifting structure will not cause wear between parts, and even repeated rotation and lifting will not affect the accurate positioning of the opening and closing position.

[0006] Furthermore, the second cover and the rotating cover are interlocked, and this connection method makes the linkage between the two faster and easier to operate.

[0007] Furthermore, the interlocking connection specifically involves: a retaining ring being provided on the second cover, and a buckle being provided on the inner wall of the corresponding rotating cover, with the buckle engaging within the retaining ring; this structure enables the interlocking connection between the second cover and the rotating cover, allowing the rotating cover to rotate and drive the second cover to move axially up and down, thus maintaining the stability of the circumferential positions of the second cover and the first cover, and ensuring accurate reset of the opening and closing positions.

[0008] Furthermore, each of the retaining rings and the buckles has a bottom surface and a top surface along the axial direction. The bottom surface of the retaining ring and the bottom surface of the buckle radially interfere with each other, and the top surface of the retaining ring and the top surface of the buckle radially interfere with each other. With this design, when the buckle is engaged within the retaining ring, the bottom and top surfaces of each other radially interfere with each other, meaning their radially corresponding surfaces can abut against each other. Thus, when the cap is rotated upwards relative to the first cap, the top surface of the buckle abuts against the top surface of the retaining ring, causing the second cap to slide upwards axially in sync. Conversely, when rotated in the opposite direction, the bottom surface of the buckle abuts against the bottom surface of the retaining ring, causing the second cap to slide downwards axially in sync. This achieves the switching between the open and closed states of the glue bottle.

[0009] Furthermore, the first cap is threadedly connected to the glue bottle, and an axially extending first sealing ring is provided on the inner side of the first cap. The first sealing ring is inserted into the bottle mouth of the glue bottle and is sealed to the bottle mouth. With this structure, when the first cap is screwed onto the glue bottle, the first sealing ring inside it is inserted into the bottle mouth to achieve a seal, preventing glue from leaking out from here.

[0010] Furthermore, a second sealing ring is provided on the outer wall of the first cap located on the side of the second cap. The second sealing ring is interference-fitted with the inner surface of the second cap and is located at the tail end of the first glue outlet. This structure ensures that a sealing surface is always formed between the second sealing ring and the inner surface of the second cap, preventing glue from overflowing. The second sealing ring is located at the tail end of the first glue outlet, near the bottle mouth, where the first glue outlet terminates and communicates with the glue channel of the glue bottle. This prevents the glue from flowing downwards and sticking to the rotating cap and the first cap after it flows out of the first glue outlet, and allows it to flow back completely into the glue bottle.

[0011] Furthermore, the inner wall of the second cover is provided with radial ribs, which are used to abut against the second sealing ring. With this structure, when the second cover rises to the point where the radial ribs abut against the second sealing ring, its rising position is limited, preventing excessive rising and difficulty in resetting. Thus, when the cover is rotated, the contact between the two can be used to determine when the rotation of the cover is stopped and it is in the glue dispensing state, without causing the second cover and the first cover to separate and cause glue leakage.

[0012] Furthermore, a guide groove is provided on the inner wall of the second cover, and the guide groove is symmetrically distributed on both sides of the length direction of the second glue outlet along the radial direction. With this structure, when the rotating cover and the second cover are fastened together as a whole and fastened onto the first cover, the guide groove can guide and position the sealing head smoothly into the position of the second glue outlet of the second cover.

[0013] Furthermore, the sealing head is a flat sealing head, and when the first adhesive outlet and the second adhesive outlet are connected, the sealing head is still located in the guide groove, that is, the flat sealing head will not detach from the guide groove. With this structure, when the rotating cover pushes the second cover axially up and down, because the sealing head is flat, and regardless of whether it is in the glue open state with an upper and lower drop relative to the first cover, or the sealing head is inserted into the second adhesive outlet, the axial position of the sealing head and its flat structure can prevent the second cover from rotating circumferentially with the rotating cover, thus playing a role in limiting its circumferential movement, and it only slides relative to the first cover in the upper and lower directions.

[0014] Furthermore, when the sealing head blocks the second dispensing port, the distance between the upper end face of the sealing head and the upper end face of the second cover is -0.1mm to 0.2mm. That is, when the sealing is closed and no glue is dispensed, the upper end face of the sealing head can be slightly lower than the upper end face of the second cover by -0.1mm or higher than the upper end face of the second cover by 0.2mm. This is because the top surface of the sealing head can maintain dimensional accuracy when close to the injection port during the molding process, while other positions below the top surface may experience injection shrinkage. If the sealing head extends excessively beyond the upper end face of the second cover, the shrinkage position may be located exactly at the second dispensing port, resulting in glue leakage. The aforementioned distance limitation can effectively prevent glue leakage.

[0015] This application also provides an adhesive dispensing device, which includes the adhesive dispensing cover mechanism described above. With this adhesive dispensing cover mechanism, the dispensing device can be opened or closed simply by rotating the cover, without the need for axial pulling or pressing, making it more labor-saving and convenient to operate. Attached Figure Description

[0016] Figure 1 This application presents a schematic diagram of the adhesive dispensing device.

[0017] Figure 2 This application presents a structural schematic diagram of the first exploded view of the dispensing device.

[0018] Figure 3 This application presents a structural schematic diagram of the second exploded view of the dispensing device.

[0019] Figure 4 This application provides a structural schematic diagram of the cap mechanism.

[0020] Figure 5 This application provides a structural schematic diagram of the sectional view of the cap mechanism (closed state).

[0021] Figure 6 The structural schematic diagram of the cross-sectional view of the dispensing cap mechanism of this application (open state).

[0022] Figure 7 This application presents a structural schematic diagram of the cross-sectional view of the combination of the rotating cover and the second cover.

[0023] Figure 8 The structural schematic diagram of the second cover section of this application.

[0024] Figure 9 This application presents a structural schematic diagram of the second cover.

[0025] Figure 10 This application presents a schematic diagram of the structure of the first cover.

[0026] As shown in the attached diagram: 1. First cover, 101. First glue outlet, 102. Sealing head, 103. First sealing ring, 104. Second sealing ring, 2. Second cover, 201. Second glue outlet, 202. Snap ring, 203. Radial rib, 204. Guide groove, 3. Rotating cover, 301. Snap fastener, 4. Glue bottle. Detailed Implementation

[0027] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the embodiments and accompanying drawings. Obviously, the described embodiments are merely preferred embodiments, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0028] Furthermore, it should be noted that when a component is referred to as being "fixed to" another component, it can be directly on the other component or it may be fixed by another intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or it may be fixed by another intermediate component. When a component is considered to be "set on" another component, it can be set directly on the other component or it may be fixed by another intermediate component. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only; the descriptions of front, back, top, bottom, left, and right orientations in this application refer to the position of the glue bottle when it is normally placed with the bottle opening facing upwards. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular, specific embodiments only and is not intended to be limiting of this application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0029] As attached Figure 1-10As shown, this application discloses a glue dispensing cap mechanism. The mechanism includes a first cap 1, a second cap 2, and a rotating cap 3. The first cap 1 is connected to a glue bottle 4, and the rotating cap 3 is screwed onto the first cap 1. The first cap 1 has a glue channel (i.e., the first cap 1 is hollow to facilitate glue flow from the glue bottle 4) and a first glue outlet 101 communicating with it. A sealing head 102 is provided at the upper part of the first glue outlet 101. The second cap 2 has a second glue outlet... The glue outlet 201 (located near the upper end of the second cover 2) is linked to the rotating cover 3. The rotating cover 3 can rotate circumferentially relative to the second cover 2 and can drive the second cover 2 to move axially up and down relative to the first cover 1, so that the first glue outlet 101 communicates with the second glue outlet 201 to allow glue to flow out (axial upward movement) or to allow the sealing head 102 to block the second glue outlet 201 (axial downward movement); specifically When the second cover 2 moves upward relative to the first cover 1 to a certain position under the drive of the rotating cover 3, the second glue outlet 201 connects with the first glue outlet 101 to allow glue to flow out. When the second cover 2 moves downward relative to the first cover 1 to a first position under the drive of the rotating cover 3, the sealing head 102 enters the second glue outlet and seals the second glue outlet 201, at which point the glue is blocked and cannot flow out. Specifically, the first cover 1 described in this application can be directly screwed on. At the mouth of the glue bottle 4, the rotating cap 3 is screwed onto the outer peripheral wall of the first cap 1. The second cap 2 is located above the rotating cap 3 and is snapped and connected to it, thus fitting onto the outside of the first cap 1. In this way, as the rotating cap 3 moves up and down and rotates circumferentially relative to the first cap 1, the second cap 2 will slide along its up and down axis, but it will not move circumferentially. In this way, it remains relatively stationary with the first cap 1 circumferentially. The sealing and opening of the glue bottle mouth are achieved by sliding along the up and down axis.

[0030] Using the above structure, this application provides a rotating cap 3 between the first cap 1 and the second cap 2. The rotating cap 3 and the second cap 2 are fastened together, rotating circumferentially relative to each other and moving synchronously up and down axially. The rotating cap 3 is screwed onto the first cap 1. When a screwing force is applied to the rotating cap 3, causing it to rise axially relative to the first cap 1, it will also cause the second cap 2, which is fastened to it, to rise axially. The second cap 2 does not rotate circumferentially. During this process, the second cap 2 slides upward axially relative to the first cap 1 until the second glue outlet 201 on the second cap 2 and the first glue outlet 101 on the first cap 1 achieve an axial drop and become connected, allowing the glue bottle to be inverted for dispensing. When not in use, rotating the rotating cap 3 in the opposite direction will cause the second cap 2, which is fastened to it, to fall axially. The second cap 2 does not rotate circumferentially. During this process, the second cap 2 slides downward relative to the first cap 1. As the second cap 2 moves downward relative to the first cap 1, the sealing head 102 on the first cap 1 enters into the second glue outlet 201 to seal and block it, so the glue will not flow out and will be in a closed state. Therefore, in the process of sealing and opening the glue, the cap mechanism of this application does not require pulling or pressing the second cap 2 back and forth. It only requires twisting and rotating the cap 3 to drive the second cap 2 to move up and down axially to realize the opening and closing action of the glue bottle. Therefore, it is more labor-saving to operate, and even young people or people with weak strength can use it. Moreover, this twisting up and down lifting structure will not cause wear between parts, and even repeated twisting and lifting will not affect the accurate positioning of the opening and closing position.

[0031] As attached Figure 5-6 As shown, the second cover 2 and the rotating cover 3 described in this application are connected by a snap-fit ​​mechanism, that is, the two can be linked by a snap-fit ​​mechanism. Using this connection method, the two can be linked together more quickly and conveniently.

[0032] More specifically, as shown in the appendix Figure 5-7 As shown, the interlocking connection described in this application is specifically as follows: a retaining ring 202 is provided on the second cover 2, and a buckle 301 is provided on the inner wall of the corresponding rotating cover 3. The buckle 301 is engaged with the retaining ring 202. Specifically, a retaining ring 202 is provided at the lower end of the second cover 2, which can be a radially inwardly recessed groove. Correspondingly, a buckle 301 protruding towards the groove is provided on the inner side of the rotating cover 3. The two can achieve interlocking and engagement through material deformation and reset, thereby realizing the connection between the second cover 2 and the rotating cover 3. This allows the rotating cover 3 to rotate and drive the second cover 2 to move axially up and down. This can maintain the stability of the circumferential position of the second cover 2 and the first cover 1, and ensure accurate reset of the glue opening and closing positions.

[0033] As attached Figure 5-8 As shown, the retaining ring 202 of this application has a bottom surface and a top surface (top and bottom in the illustrated direction) along the axial direction, and the buckle 301 has a bottom surface and a top surface along the axial direction. The bottom surface of the retaining ring 202 and the bottom surface of the buckle 301 radially interfere with each other, and the top surface of the retaining ring 202 and the top surface of the buckle 301 radially interfere with each other. Specifically, the retaining ring 202 is a radially inwardly recessed groove structure, forming a radial recess with a top surface and a bottom surface. The buckle 301 has a hook extending inward from the retaining ring, which is located on the inner wall of the rotating cover 3 and also has a top surface and a bottom surface. When the buckle 301 is engaged with the retaining ring 202, the bottom and top surfaces of each buckle interfere radially with each other, meaning they overlap radially. This allows the radially corresponding surfaces to abut against each other. When the rotating cap 3 is rotated upward relative to the first cap 1, the top surface of the buckle 301 abuts against the top surface of the retaining ring 202, thereby causing the second cap 2 to slide upward axially in sync. When it is rotated downward in the opposite direction, the bottom surface of the buckle 301 abuts against the bottom surface of the retaining ring 202, thereby causing the second cap 2 to slide downward axially in sync. This achieves the switching between the open and closed states of the glue bottle.

[0034] As an example, see attached Figure 2-3 As shown in Figures 5-6, the first cap 1 of this application is threadedly connected to the glue bottle 4, and an axially extending first sealing ring 103 is provided on the inner side of the first cap 1. The first sealing ring 103 is inserted into the bottle mouth of the glue bottle 4 and is sealed to the bottle mouth. Specifically, the first sealing ring 103 extends axially toward the inside of the bottle mouth of the glue bottle 4. After the first cap 1 is screwed and fixed on the glue bottle 4, the first sealing ring is inserted into the inside of the bottle mouth and the interference fit between the inside of the bottle mouth to achieve a seal, preventing glue from leaking out from here. When dispensing glue, the glue can only flow out from the glue channel of the first cap 1 and the first glue outlet 101.

[0035] As attached Figure 5-6 and Figure 10As shown, a second sealing ring 104 is provided on the outer wall of the first cover 1 located on the side of the second cover 2. The second sealing ring 104 is interference-fitted with the inner surface of the second cover 2, and the second sealing ring 104 is located at the tail end of the first glue outlet 101. Specifically, a radially protruding sealing ring structure is provided on the outer wall of the first cover 1, so that the second sealing ring 104 and the inner surface of the second cover 2 always form a sealing surface to prevent glue from overflowing. The second sealing ring 104 is located at the tail end of the first glue outlet 101, that is, close to the bottle mouth of the glue bottle 4. The first glue outlet 101 terminates at the position of the second sealing ring 104 and communicates with the glue channel of the glue bottle 4. In this way, after the glue flows out from the first glue outlet 101, it will not flow downward and stick to the rotating cover 3 and the first cover 1. And when the bottle mouth of the glue bottle 4 is placed upward, the glue can completely flow back into the glue bottle.

[0036] As attached Figure 5-8 As shown, the inner wall of the second cover 2 described in this application is provided with a radial rib 203, which is used to abut against the second sealing ring 104. Specifically, the radial rib 203 protrudes inward and is located above the retaining ring 202. Its radial direction and the second sealing ring 104 can interfere with each other. After the second cover 2 is fitted onto the first cover 1 with the rotating cover 3, the radial rib 203 is located below the second sealing ring 104. When the second cover 2 rises to the point where the radial rib 203 abuts against the second sealing ring 104, its rising position is limited, preventing excessive rising and difficulty in resetting. In this way, when the cover 3 is rotated upward relative to the first cover 1, the contact between the two can be used to determine that the rotation of the cover 3 is stopped and the cover is in the glue dispensing state. This will not cause the second cover 2 and the first cover 1 to separate and cause glue leakage.

[0037] As attached Figure 9 As shown, the inner wall of the second cover 2 described in this application is provided with a guide groove 204. The guide groove 204 is symmetrically distributed on both sides of the length direction of the second glue outlet 201 along the radial direction. That is, the guide groove 204 forms an inclined guiding groove structure. With this structure, when the rotating cover 3 and the second cover 2 are fastened together as a whole and fastened onto the first cover 1, the guide groove 204 guides the sealing head 102 in an orientation, so that the sealing head 102 is smoothly guided and positioned into the position of the second glue outlet 201 of the second cover 2.

[0038] As attached Figure 1-6 , Figure 9-10As shown, the sealing head 102 described in this application is a flat sealing head. When the first glue outlet 101 and the second glue outlet 201 are connected, the sealing head 102 is located in the guide groove 204, that is, the flat sealing head 102 will not detach from the guide groove 204. With this structure, when the rotating cover 3 pushes the second cover 2 to move axially up and down, since the sealing head 102 is flat, and regardless of whether it is in the glue open state with an upper and lower drop relative to the first cover 1, or the sealing head 102 is inserted into the second glue outlet 201, the axial position of the sealing head 102 and its flat structure can prevent the second cover 2 from rotating circumferentially with the rotating cover 3, thus playing a role in circumferentially limiting each other with the first cover 1, and only sliding in the upper and lower directions relative to the first cover 1.

[0039] As an example, with Figure 1 , Figure 5-6 As shown in the diagram, when the sealing head 102 blocks the second glue outlet 201, the distance between the upper surface of the sealing head 102 and the upper surface of the second cap 2 is -0.1mm to 0.2mm, indicating that the glue is blocked and no glue is being dispensed. At this time, the upper surface of the sealing head 102 can be slightly lower than the upper surface of the second cap 2 by -0.1mm, or higher than the upper surface of the second cap 2 by 0.2mm. This is because the upper surface of the sealing head 102, being close to the injection port and having sufficient material during the molding process, can maintain the accuracy of the injection dimensions. However, other areas below the top surface may experience injection shrinkage. If the sealing head 102 extends excessively beyond the upper surface of the second cap 2, the shrinkage may occur precisely at the second glue outlet 201, leading to glue leakage. The aforementioned distance limitation effectively prevents glue leakage.

[0040] As attached Figure 1-10 As shown, the second dispensing port 201 described in this application is a flat dispensing port, and the sealing head 102 is adapted to the inner contour of the flat second dispensing port 201; that is, the dispensing ports of the glue bottles of this application all adopt a flat structure. The use of this flat dispensing port facilitates the application of glue and can easily expand the coating area.

[0041] As attached Figure 1-3 As shown, this application also provides an adhesive dispensing device, which includes the adhesive dispensing cover mechanism described above. With this adhesive dispensing cover mechanism, the dispensing device can be opened or closed simply by rotating the cover, without the need for axial pulling or pressing, making it more labor-saving and convenient to operate.

[0042] To facilitate screwing, the outer surface of the first cover 1 of this application is provided with several vertically extending anti-slip ribs; the outer surface of the rotating cover 3 of this application is also provided with anti-slip ribs and other structures to facilitate screwing and applying force.

[0043] The working principle and process of the above-mentioned glue dispensing cap mechanism combined with the glue bottle are as follows: The first cap 1 is screwed tightly onto the bottle mouth of the glue bottle 4, and the first sealing ring 103 is inserted into the bottle mouth with an interference fit to form a sealing surface; the rotating cap 3 and the second cap 2 are locked together by the retaining ring 202 and the buckle 301 to form a whole, and then screwed onto the outer wall of the first cap 1; when glue needs to be dispensed, the rotating cap 3 is screwed upward, which drives the second cap 2 to slide axially upward, so that a height difference is formed between the second glue dispensing port 201 on the second cap 2 and the first glue dispensing port 101 on the first cap 1. The screwing stops when the radial rib 203 and the second sealing ring 104 abut against each other. At this time, the sealing head 102 falls from the second glue dispensing port 201, and the first glue dispensing port 101 and the second glue dispensing port 201 are interconnected. Figure 6 As shown, when the glue bottle 4 is inverted, the glue inside flows from the glue channel to the first glue outlet 101 and into the second glue outlet 201, thus achieving the glue dispensing and application operation. When not in use, the glue bottle is placed back in its original position. Figure 1 As shown in the upright position, the glue flows back from the second glue outlet 201 to the first glue outlet 101 and is collected into the glue bottle 4. Since the second sealing ring 104 is located at the tail end of the first glue outlet 101, all the glue can flow back into the glue bottle 4. Then, the cap 3 is rotated in the opposite direction, causing the second cap 2 to move axially downward. After being rotated to the bottom, the sealing head 102 enters the lowered second glue outlet 201 to achieve sealing. With this structure, the opening and closing of the glue bottle can be achieved simply by rotating the cap 3. The operation is more labor-saving and convenient, has a wide range of applications, and is less likely to cause the second cap 2 and the first cap 1 to separate due to uneven force application.

Claims

1. A glue dispensing cap mechanism, characterized in that: The structure of the mechanism includes a first cover (1), a second cover (2), and a rotating cover (3); the first cover (1) is connected to the glue bottle (4), and the rotating cover (3) is screwed onto the first cover (1); the first cover (1) is provided with a glue channel and a first glue outlet (101) communicating with it, and a sealing head (102) is provided on the upper part of the first glue outlet (101); the second cover (2) is provided with a second glue outlet (201), the second cover (2) and the rotating cover (3) are linked and connected, the rotating cover (3) can rotate circumferentially relative to the second cover (2), and can drive the second cover (2) to move axially up and down relative to the first cover (1), so that the first glue outlet (101) and the second glue outlet (201) communicate to allow glue to flow out or to allow the sealing head (102) to block the second glue outlet (201).

2. The glue dispensing cap mechanism according to claim 1, characterized in that: The second cover (2) and the rotating cover (3) are interlocked.

3. The glue dispensing cap mechanism according to claim 2, characterized in that: The interlocking connection is specifically as follows: a retaining ring (202) is provided on the second cover (2), and a buckle (301) is provided on the inner wall of the corresponding rotating cover (3), and the buckle (301) is fastened to the retaining ring (202).

4. The glue dispensing cap mechanism according to claim 3, characterized in that: The retaining ring (202) is provided with a bottom surface and a top surface along the axial direction, and the buckle (301) is also provided with a bottom surface and a top surface along the axial direction. The bottom surface of the retaining ring (202) and the bottom surface of the buckle (301) are radially interfering, and the top surface of the retaining ring (202) and the top surface of the buckle (301) are radially interfering.

5. The glue dispensing cap mechanism according to claim 1, characterized in that: The first cap (1) is threadedly connected to the glue bottle (4), and the inner side of the first cap (1) is provided with an axially extending first sealing ring (103), which is inserted into the bottle mouth of the glue bottle (4) and sealed to the bottle mouth.

6. The glue dispensing cap mechanism according to claim 1, characterized in that: The first cover (1) is provided with a second sealing ring (104) on the outer wall of the second cover (2) side. The second sealing ring (104) is interference-fitted with the inner surface of the second cover (2), and the second sealing ring (104) is located at the tail end of the first glue outlet (101).

7. The glue dispensing cap mechanism according to claim 6, characterized in that: The inner wall of the second cover (2) is provided with radial ribs (203), which are used to abut against the second sealing ring (104).

8. The glue dispensing cap mechanism according to claim 1, characterized in that: The inner wall of the second cover (2) is provided with a guide groove (204), which is symmetrically arranged on both sides of the length direction of the second glue outlet (201) along the radial direction; the sealing head (102) is a flat sealing head (102), and when the first glue outlet (101) is connected to the second glue outlet (201), the sealing head (102) is still located in the guide groove (204).

9. The glue dispensing cap mechanism according to claim 1, characterized in that: When the sealing head (102) blocks the second glue outlet (201), the distance between the upper end face of the sealing head (102) and the upper end face of the second cover (2) is -0.1mm to 0.2mm.

10. A glue dispensing device, characterized in that: The dispensing device includes the dispensing cap mechanism as described in any one of claims 1-9.

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