Glue outlet valve locking structure of glue dispensing device

Abstract

The utility model discloses a glue outlet valve locking structure of a glue dispensing device, which relates to the technical field of glue dispensing barrel locking structures and comprises a sleeve with a bayonet part on the periphery. The sliding buckle part is arranged on the inner wall of the cover body, and the end face, making contact with the bayonet part, of the sliding buckle part is obliquely arranged; the sealing ring is arranged between the port of the dispensing barrel and the cover body; wherein the slide fastener part is provided with a limiting block and a guide block, and the bayonet part slides to the limiting block along the guide block. According to the glue outlet valve locking structure of the glue dispensing device, the glue dispensing barrel and the cover body are connected through the bayonet part and the slide fastener part in a rotary buckling manner without a thread structure, so that glue residue is effectively avoided, and the glue outlet valve locking structure can be quickly disassembled and assembled. The sealing ring deforms to keep the sealing performance through the mutual buckling force of the bayonet part and the sliding buckle part, in the screwing process, the bayonet part slides along the guide block, the deformation degree of the sealing ring is gradually increased, and after the cover body and the dispensing barrel are completely connected, the sealing ring fills the connecting gap and enables the cover body and the dispensing barrel to be relatively fixed.

Description

Technical Field

[0001] The utility model relates to the technical field of a dispensing cylinder locking structure, in particular to a dispensing device glue outlet valve locking structure. Background Art

[0002] After the existing glue dispensing device has been used for a period of time, the glue head and the barrel are integrated. When the glue is used up and replaced, a specific tool is needed to clean the glue remaining in the glue head, which is complicated and increases the replacement time. The overall sealing of the glue dispensing barrel is poor, and the lower end of the barrel leaks glue seriously, resulting in unnecessary waste of glue and the risk of contaminating other components that cannot be glued.

[0003] CN202120455612.5 discloses a dispensing tube fixing mechanism and a dispensing device thereof, including a fixing seat, a clamping assembly and a limit lock assembly, wherein one end of the fixing seat extends upward with a bottom plate, and a through hole is provided on the bottom plate for the dispensing tube to pass through. The other end of the fixing seat is connected to the clamping assembly, and the end of the clamping assembly axially extruding the rubber tube is limited on one side of the bottom plate. The limit lock assembly is connected to the fixing seat and is used to radially press the dispensing tube on the fixing seat.

[0004] Existing dispensing cylinders usually use thread locking. Due to the viscosity of the colloid and the residual residue, it is difficult to open the cover, and it needs to be repeatedly twisted for multiple turns to separate. In addition, after the colloid solidifies at the thread, it is difficult to clean, which affects the disassembly and assembly efficiency. Utility Model Content

[0005] The utility model aims to at least solve the technical problem in the prior art that "the existing dispensing cylinder is usually locked by thread, and the cover is difficult to open due to the viscosity of the colloid and the residual residue, and needs to be twisted repeatedly to be separated, and the colloid is difficult to clean after solidifying at the thread, which affects the efficiency of disassembly and assembly". To this end, the utility model proposes a locking structure for the dispensing device's dispensing valve, which allows quick disassembly and assembly between the cover and the cylinder, and can be disassembled and assembled with less than one rotation, and has better sealing performance and is more convenient for later cleaning and maintenance.

[0006] According to some embodiments of the present invention, the locking structure of the dispensing device dispensing valve is applied to the dispensing cylinder and the cover body; it includes:

[0007] A sleeve, the sleeve is fixedly connected to the end of the dispensing tube, and a bayonet portion is provided on the periphery of the sleeve;

[0008] A sliding buckle portion is arranged on the inner wall of the cover body, and the end surface of the sliding buckle portion contacting the bayonet portion is arranged inclined;

[0009] A sealing ring is arranged between the dispensing cylinder port and the cover body. When the cover body and the dispensing cylinder are connected, the sliding buckle part and the bayonet part are rotated and buckled to press the sealing ring;

[0010] Wherein, the sliding buckle part is provided with a limit block and a guide block, and the bayonet part slides along the guide block to the limit block.

[0011] Preferably, the slide buckle parts are distributed at equal intervals in the cover body, the bayonet parts are distributed at equal intervals in the cover body, and the number of the slide buckle parts and the bayonet parts is equal.

[0012] Preferably, the guide block is provided with an inclined guide surface and a travel surface parallel to the port.

[0013] Preferably, the guide surface has an inclination angle of 20° to 30°.

[0014] Preferably, the junction between the limit block and the guide surface has a smooth transition.

[0015] Preferably, the sliding buckle portion is integrally formed with the cover body, and the bayonet portion is integrally formed with the sleeve.

[0016] Preferably, the outer diameter of the sealing ring is equal to the outer diameter of the dispensing tube, and the ratio of the outer diameter to the inner diameter of the sealing ring is 1.4 to 1.6.

[0017] Preferably, a limiting seat is provided at the bottom of the cover body, and when the cover body is connected to the glue dispensing cylinder, the sealing ring is limited in the limiting seat.

[0018] Preferably, the distance between the end of the limiting block and the bottom of the cover body is greater than the thickness of the sealing ring.

[0019] According to some embodiments of the present invention, the locking structure of the dispensing device dispensing valve has at least the following beneficial effects: the dispensing cylinder and the cover body are connected by the bayonet part and the sliding buckle part, without a threaded structure, effectively avoiding colloid residue and enabling quick disassembly and assembly. The sealing ring is deformed to maintain the sealing performance by the force of the bayonet part and the sliding buckle part engaging each other. During the tightening process, the bayonet part slides along the guide block, and the degree of deformation of the sealing ring gradually increases. When the cover body and the dispensing cylinder are fully connected, the sealing ring fills the connection gap and makes the cover body and the dispensing cylinder relatively fixed.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0022] Figure 1 This is an exploded schematic diagram of the locking structure of the glue dispensing valve of the glue dispensing device according to the embodiment of the utility model;

[0023] Figure 2 This is a connection diagram of the locking structure of the glue dispensing valve of the glue dispensing device according to the embodiment of the utility model;

[0024] Figure 3 It is a first three-dimensional schematic diagram of a cover body according to an embodiment of the utility model;

[0025] Figure 4 It is a second stereoscopic schematic diagram of the cover body of the embodiment of the utility model.

[0026] Reference numerals:

[0027] Dispensing cartridge 100, sleeve 110, bayonet portion 111,

[0028] The cover 200, the slider 210, the limit block 211, the guide block 212, the guide surface 212a, the travel surface 212b, the limit seat 220,

[0029] Sealing ring 300. DETAILED DESCRIPTION

[0030] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0031] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, top, bottom, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0032] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0033] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0034] Reference below Figure 1-Figure 4 The locking structure of the glue dispensing valve of the glue dispensing device according to the embodiment of the utility model is described.

[0035] like Figure 1-Figure 4 As shown, the dispensing device glue valve locking structure is mainly used in the dispensing cylinder 100 and the cover 200. The existing dispensing device cylinder locking structure is usually a threaded connection buckle or a pressure buckle. The threaded connection structure is set inside, and the colloid easily penetrates into the thread gap, making it difficult to clean. In addition, the threaded connection structure needs to be rotated multiple times before it can be separated, which increases the difficulty of disassembly and assembly. The pressure buckle structure only presses the dispensing cylinder 100 and the cover 200 through multiple pressure buckles, but as the pressure buckle ages, the pressing force acting on the cylinder will decrease, and there is a situation where the sealing performance is reduced, resulting in glue overflow at the connection gap.

[0036] The locking structure of the dispensing device dispensing valve of the utility model comprises a sleeve 110, a sliding buckle part 210 and a sealing ring 300. The sleeve 110 is fixedly connected to the port of the dispensing cylinder 100 by welding or integral molding, and a surrounding bayonet part 111 is arranged on the periphery of the sleeve 110. The sliding buckle part 210 is arranged around the inner wall of the cover body 200, and the end surface of the sliding buckle part 210 in contact with the bayonet part 111 is arranged obliquely, so that the bayonet part 111 can slide along the inclined surface of the sliding buckle part 210. During the sliding process of the bayonet part 111, the cover body 200 moves axially close to the dispensing cylinder 100, so that the dispensing cylinder 100 and the cover body 200 are connected.

[0037] In order to make the cover body 200 and the dispensing cylinder 100 tightly connected, a sealing ring 300 is provided between the port of the dispensing cylinder 100 and the cover body 200. When the cover body 200 and the dispensing cylinder 100 are connected, the sliding buckle part 210 and the bayonet part 111 are screwed and buckled to compress the sealing ring 300. Specifically, during the screwing and buckling process, the distance between the cover body 200 and the dispensing cylinder 100 is reduced and the sealing ring 300 is compressed. The sealing ring 300 is compressed and deformed to fill the connection gap between the cover body 200 and the dispensing cylinder 100. Compared with the pressure buckle structure, the bayonet part 111 and the sliding buckle part 210 will not age after long-term use, and the pressing force is maintained unchanged. Compared with the threaded structure, the inner wall of the cover body 200 does not need to be provided with threads, which effectively prevents the colloid from remaining in the threads and is convenient for cleaning. Moreover, the cover body 200 and the glue dispensing tube 100 can be completely locked by rotating the bayonet portion 111 and the sliding buckle portion 210 for less than one circle, which makes the disassembly and assembly efficiency higher and improves the disassembly and assembly efficiency.

[0038] The slide buckle part 210 is provided with a limit block 211 and a guide block 212, and the bayonet part 111 slides along the guide block 212 to the limit block 211. Specifically, in order to make the connection between the cover body 200 and the dispensing cylinder 100 faster, the limit block 211 and the guide block 212 of the slide buckle part 210 can guide the bayonet part 111 to slide quickly. In this embodiment, the dispensing cylinder 100 is in a fixed state, the cover body 200 is a movable part, the slide buckle part 210 is a movable part, and the bayonet part 111 is a fixed part. Since the motion state is relative, in this embodiment, the bayonet part 111 is described as a movable part.

[0039] In some embodiments of the present invention, Figure 1 , Figure 3 and Figure 4 As shown, the slide buckle parts 210 are evenly spaced in the cover body 200, and the bayonet parts 111 are evenly spaced in the cover body 200, and the number of the slide buckle parts 210 and the bayonet parts 111 is equal. Specifically, in this embodiment, the slide buckle parts 210 and the bayonet parts 111 are each provided with three groups, the angle between adjacent slide buckle parts 210 is 120°, and the angle between adjacent bayonet parts 111 is 120°. The slide buckle parts 210 and the bayonet parts 111 are staggered and tightened, thereby driving the bayonet parts 111 to slide along the guide block 212 of the slide buckle parts 210, so that the cover body 200 and the dispensing cylinder 100 are connected.

[0040] Further, if Figure 3 and Figure 4 As shown, the guide block 212 is provided with an inclined guide surface 212a and a travel surface 212b parallel to the port. Specifically, in order to ensure that the slider 210 does not slip after being connected to the bayonet portion 111, the travel surface 212b needs to be parallel to the contact surface of the bayonet portion 111, ensuring that the travel surface 212b is completely in contact with the bayonet portion 111 to reduce lateral stress.

[0041] Further, if Figure 3 and Figure 4 As shown, the guide surface 212a has an inclination angle of 20° to 30°. Specifically, in this embodiment, the guide surface 212a has an inclination angle of 23°, which ensures that the force gradually increases during the connection between the bayonet portion 111 and the slider portion 210, so that the sealing ring 300 gradually increases the deformation amplitude to fully fill the connection gap between the cover body 200 and the dispensing cylinder 100. It can also reduce the physical strength consumed by the staff to tighten the cover body 200.

[0042] In some embodiments of the present invention, Figure 1 and Figure 4 Specifically, in order to prevent the colloid from remaining at the right-angle connection position inside the cover body 200, the connection between the limit block 211 and the guide surface 212a is smoothly transitioned, which is convenient for staff to clean.

[0043] In some embodiments of the present invention, Figure 1 and Figure 2 As shown, the slide buckle 210 is integrally formed with the cover 200, and the bayonet 111 is integrally formed with the sleeve 110. Specifically, the slide buckle 210 and the bayonet 111 are integrally formed to ensure the connection strength between the slide buckle 210 and the bayonet 111, and they will not age after long-term use.

[0044] In some embodiments of the present invention, Figure 1 As shown, the outer diameter of the sealing ring 300 is equal to the outer diameter of the dispensing tube 100, and the ratio of the outer diameter to the inner diameter of the sealing ring 300 is 1.4 to 1.6.

[0045] In some embodiments of the present invention, Figure 1 , Figure 3 and Figure 4 As shown, a limit seat 220 is provided at the bottom of the cover 200. When the cover 200 is connected to the dispensing cylinder 100, the sealing ring 300 is limited in the limit seat 220. Specifically, the limit seat 220 protrudes from the bottom end surface of the cover 200, and the sealing ring 300 is deformed in the limit seat 220 to prevent the sealing ring 300 from deflecting.

[0046] In some embodiments of the present invention, Figure 3 and Figure 4 As shown, the distance between the end of the limiting block 211 and the bottom of the cover body 200 is greater than the thickness of the sealing ring 300 .

[0047] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0048] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A glue dispensing device glue valve locking structure, applied to a glue dispensing cylinder (100) and a cover body (200); characterized in that: include: A sleeve (110), the sleeve (110) being fixedly connected to the end of the glue dispensing cylinder (100), and a bayonet portion (111) being provided on the periphery of the sleeve (110); A sliding buckle portion (210) is arranged on the inner wall of the cover body (200), and the end surface of the sliding buckle portion (210) in contact with the bayonet portion (111) is arranged at an angle; A sealing ring (300) is arranged between the port of the dispensing cylinder (100) and the cover body (200); when the cover body (200) and the dispensing cylinder (100) are connected, the sliding buckle portion (210) and the bayonet portion (111) are screwed together to buckle and press the sealing ring (300); The sliding buckle portion (210) is provided with a limit block (211) and a guide block (212), and the bayonet portion (111) slides along the guide block (212) to the limit block (211).

2. The locking structure of the glue dispensing device glue valve according to claim 1, characterized in that: The sliding buckle parts (210) are distributed at equal intervals in the cover body (200), and the bayonet parts (111) are distributed at equal intervals in the cover body (200), and the number of the sliding buckle parts (210) and the bayonet parts (111) is equal.

3. The locking structure of the glue dispensing device glue valve according to claim 2, characterized in that: The guide block (212) is provided with an inclined guide surface (212a) and a travel surface (212b) parallel to the port.

4. The locking structure of the glue dispensing device glue valve according to claim 3 is characterized in that: The guide surface (212a) has an inclination angle of 20° to 30°.

5. The locking structure of the glue dispensing device glue valve according to claim 3, characterized in that: The junction between the limit block (211) and the guide surface (212a) has a smooth transition.

6. The locking structure of the dispensing device dispensing valve according to claim 2, characterized in that: The sliding buckle portion (210) and the cover body (200) are integrally formed, and the bayonet portion (111) and the sleeve (110) are integrally formed.

7. The locking structure of the glue dispensing device glue valve according to claim 1, characterized in that: The outer diameter of the sealing ring (300) is equal to the outer diameter of the glue dispensing cylinder (100), and the ratio of the outer diameter to the inner diameter of the sealing ring (300) is 1.4 to 1.

6.

8. The locking structure of the glue dispensing device glue valve according to claim 7, characterized in that: A limiting seat (220) is provided at the bottom of the cover body (200); when the cover body (200) is connected to the glue dispensing cylinder (100), the sealing ring (300) is limited in the limiting seat (220).

9. The locking structure of the glue dispensing device glue valve according to claim 8, characterized in that: The distance between the end of the limiting block (211) and the bottom of the cover body (200) is greater than the thickness of the sealing ring (300).

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