Polyurethane hot melt adhesive sealed storage mechanism

Abstract

The utility model relates to a polyurethane hot melt adhesive sealed storage mechanism. The problems that in the prior art, air pressure monitoring is difficult to conduct on the sealed environment, and taking and using are inconvenient are solved. The device comprises a sealed outer shell, the bottom of the sealed outer shell is connected with a supporting base, the upper end of the sealed outer shell is in threaded connection with a sealed cover, the sealed outer shell is internally connected with a storage inner cylinder used for loading hot melt adhesive through a pneumatic detection assembly, and the upper end of the storage inner cylinder is sealed through a connecting cover; the lower end of the storage inner cylinder is positioned through an insertion connection structure arranged in the supporting base, a glue guide pipe body structure is axially inserted in the storage inner cylinder, and the upper end of the glue guide pipe body structure penetrates out of the connection cover body and is sealed through the sealing cover body. The hot melt adhesive sealing device has the advantages that the air pressure in a hot melt adhesive sealing environment can be monitored in real time, so that whether leakage or air leakage occurs or not is judged in time, the sealing step does not need to be carried out again after the hot melt adhesive sealing device is used, and operation is convenient and fast.

Description

Technical Field

[0001] The utility model relates to the technical field of hot melt adhesive sealing, in particular to a polyurethane hot melt adhesive sealing storage mechanism. Background Art

[0002] When conventional polyurethane hot melt adhesives are usually stored in sealed plastic barrels, the seals are only closed by compression. When the temperature changes greatly, the seams shrink or expand accordingly. The conventional packaging structure cannot guarantee the internal sealing and waterproofing effect. When stored for a long time, external water vapor penetrates into the barrel through the seams, causing the polyurethane hot melt adhesive to absorb water and fail. Moreover, conventional polyurethane storage barrels are inconvenient to stack and store, and transportation is relatively cumbersome. In addition, it is difficult to monitor the internal air pressure of the existing polyurethane hot melt adhesive in real time after sealing, so as to judge the sealing effect, and it needs to be re-sealed after a small amount of use, which is cumbersome to operate and inconvenient to use.

[0003] In order to solve the deficiencies of the existing technology, people have conducted long-term exploration and proposed various solutions. For example, a Chinese patent document discloses a moisture-curing polyurethane hot melt adhesive storage device [CN202222821251.9], which includes a storage barrel, the upper opening of the storage barrel is closed by a sealing cover, the upper end of the storage barrel has a negative pressure groove surrounding the circumference, the sealing cover has a negative pressure strip plugged into the negative pressure groove, the negative pressure strip is made of elastic material and has a negative pressure cavity inside, the upper end of the sealing cover is opened with a pressure extraction port connected to the negative pressure cavity, the pressure extraction port has a built-in one-way exhaust component, and a clamping component is arranged between the negative pressure groove and the negative pressure strip.

[0004] The above solution has solved to a certain extent the problem of poor sealing and waterproofing performance and cumbersome transportation of polyurethane hot melt adhesive in the prior art. However, the solution still has many shortcomings, such as: it is difficult to monitor the internal air pressure in real time after sealing, so as to observe the sealing performance in real time, and it needs to be re-sealed after a small amount of use, which is cumbersome to operate and inconvenient to use. Summary of the invention

[0005] The utility model aims to solve the above problems and provides a polyurethane hot melt adhesive sealing storage mechanism.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a polyurethane hot melt adhesive sealing storage mechanism, including a sealed outer shell, the bottom of the sealed outer shell is connected to a supporting base and the upper end is threadedly connected to a sealing cover body, a storage inner cylinder for loading hot melt adhesive is connected to the sealed outer shell through a pneumatic detection component, the upper end of the storage inner cylinder is closed by a connecting cover, and the lower end of the storage inner cylinder is positioned by a plug-in connection structure arranged in the supporting base, a glue guiding tube body structure is axially plugged in the storage inner cylinder, and the upper end of the glue guiding tube body structure passes through the connecting cover body and is closed by the above-mentioned sealing cover body.

[0007] In the above-mentioned polyurethane hot melt adhesive sealing storage mechanism, the pneumatic detection component includes a plurality of annular tightening seats circumferentially arranged on the sealing outer shell, the annular tightening seats are provided with at least one air pressure detection hole and a plurality of supporting connection holes, and the storage inner cylinder is circumferentially provided with a plurality of vertically arranged strip positioning seats, the strip positioning seats are provided with insertion holes corresponding to the air pressure detection holes and positioning holes corresponding to the supporting connection holes.

[0008] In the above-mentioned polyurethane hot melt adhesive sealing storage mechanism, the positioning hole and the supporting connection hole are connected by a threaded rod to support and position the storage inner cylinder, and an airtight detection gap is formed between the storage inner cylinder and the sealed outer shell.

[0009] In the above-mentioned polyurethane hot melt adhesive sealing storage mechanism, an airtightness detector inserted into the storage inner cylinder is provided on the sealing cover body, and a plurality of easy-to-open convex strips are provided on the circumferential outer wall of the sealing cover body.

[0010] In the above-mentioned polyurethane hot melt adhesive sealing storage mechanism, the adhesive guide tube body structure includes an adhesive guide tube, the bottom of the adhesive guide tube is provided with an elastic damping telescopic cylinder, and a plurality of adhesive outlet holes are arranged around the adhesive guide tube.

[0011] In the above-mentioned polyurethane hot melt adhesive sealing storage mechanism, a threaded connection plug-in sleeve is provided on the inner wall of the connecting cover, and a plug-in connection gap is formed between the connecting cover and the threaded connection plug-in sleeve. A sealing socket is provided on the upper end of the storage inner cylinder and is plugged into the plug-in connection gap, and the storage cylinder body and the threaded connection plug-in sleeve are threadedly connected.

[0012] In the above-mentioned polyurethane hot melt adhesive sealing storage mechanism, a threaded connection hole is provided at the axis of the connection cover, and the connection cover is connected to a sealing pipe cover for sealing the adhesive guide pipe through the threaded connection hole.

[0013] In the above-mentioned polyurethane hot melt adhesive sealing storage mechanism, a sealing insert ring is circumferentially provided on the sealing tube cover, and a sealing connection groove corresponding to the sealing insert ring is provided on the wall surface of the connection cover and circumferentially outside the threaded connection hole.

[0014] In the above-mentioned polyurethane hot melt adhesive sealing storage mechanism, the plug-in connection structure includes a plug-in base arranged on a support base, an annular sealing slot is provided on the upper end surface of the plug-in base, and an annular plug-in connection part is provided at the bottom of the storage inner tube corresponding to the annular sealing slot.

[0015] In the above-mentioned polyurethane hot melt adhesive sealing storage mechanism, a positioning groove is provided on the upper end surface of the plug-in base and is located on the circumferential inner side of the annular sealing slot, and a positioning step is provided at the bottom of the positioning groove. A spherical base corresponding to the positioning groove is provided at the bottom of the storage inner cylinder and is located on the circumferential inner side of the annular plug-in connection part.

[0016] Compared with the existing technology, the advantages of the utility model are: after the hot melt adhesive is sealed, the air pressure in the storage inner cylinder and the air pressure between the storage inner cylinder and the sealed outer shell can be monitored in real time through the airtightness detector 13 and the air pressure detection hole 22, so as to judge the sealing effect, understand the sealing performance in real time, and judge whether there is leakage in time; secondly, the hot melt adhesive that has been sealed can be sucked and used at any time through the glue guide tube, and it can be quickly sealed after use, and the operation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a partial structural exploded view of the utility model;

[0019] Figure 3 It is a schematic diagram of the structure of the rubber guide tube in the utility model;

[0020] Figure 4 It is a schematic diagram of the connecting cover structure in the utility model;

[0021] Figure 5 It is a schematic diagram of the structure after the sealing pipe cover and the connecting cover in the utility model are decomposed;

[0022] Figure 6 It is a schematic diagram of the plug-in base structure in the utility model;

[0023] In the figure, a sealed outer shell 1, a supporting base 11, a sealing cover body 12, an airtightness detector 13, an easy-to-open convex strip 14, a pneumatic detection component 2, an annular clamping seat 21, an air pressure detection hole 22, a supporting connection hole 23, a strip positioning seat 24, a positioning hole 25, an insertion hole 26, a storage inner tube 3, a connecting cover 4, a threaded connection plug tube 41, a plug-in connection gap 42, a sealed socket 43, a threaded connection hole 44, a sealed pipe cover 45, a sealing plug ring portion 451, a sealed connection groove 452, a plug-in connection structure 5, a plug-in base 51, an annular sealing slot 52, an annular plug-in connection portion 53, a positioning groove 54, a positioning step 55, a spherical base 56, a rubber guide tube body structure 6, a rubber guide tube 61, an elastic damping telescopic tube 62, and a rubber outlet hole 63. DETAILED DESCRIPTION

[0024] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0025] like Figure 1-6As shown, a polyurethane hot melt adhesive sealing storage mechanism includes a sealed outer shell 1, the bottom of the sealed outer shell 1 is connected to a support base 11 and the upper end is threadedly connected to a sealing cover body 12, a storage inner cylinder 3 for loading hot melt adhesive is connected to the sealed outer shell 1 through a pneumatic detection component 2, the upper end of the storage inner cylinder 3 is closed by a connecting cover 4, and the lower end of the storage inner cylinder 3 is positioned by a plug-in connection structure 5 arranged in the supporting base 11, a glue guiding tube body structure 6 is axially plugged in the storage inner cylinder 3, and the upper end of the glue guiding tube body structure 6 passes through the connecting cover 4 and is closed by the above-mentioned sealing cover body 12.

[0026] Among them, the pneumatic detection component 2 includes a plurality of annular clamping seats 21 circumferentially arranged on the sealed outer shell 1, and the annular clamping seat 21 is provided with at least one air pressure detection hole 22 and a plurality of supporting connection holes 23, and the storage inner cylinder 3 is circumferentially provided with a plurality of vertically arranged strip positioning seats 24, and the strip positioning seat 24 is provided with an insertion hole 26 corresponding to the air pressure detection hole 22 and a positioning hole 25 corresponding to the supporting connection hole 23.

[0027] The sealed outer shell 1 is provided with an air pressure monitoring module connected to the air pressure detection hole 22, the air pressure monitoring module is connected to the air pressure display screen, and the air pressure display screen is connected to the air leakage alarm device.

[0028] It can be seen that the positioning hole 25 is connected to the supporting connection hole 23 through the threaded rod so as to support and position the storage inner cylinder 3 , and an airtight detection gap is formed between the storage inner cylinder 3 and the sealed outer shell 1 .

[0029] The air pressure detection hole 22 is used to detect the air pressure change in the airtight detection gap, and is used to determine whether the storage inner tube 3 is leaking or taking in air.

[0030] Obviously, the sealing cover body 12 is provided with an airtightness detector 13 inserted into the storage inner tube 3, and the circumferential outer wall of the sealing cover body 12 is provided with a plurality of easy-open convex strips 14.

[0031] The air pressure monitoring data of the airtightness detector 13 is also displayed in real time through the above-mentioned air pressure display screen.

[0032] Furthermore, the rubber guiding tube body structure 6 comprises a rubber guiding tube 61 , a bottom of the rubber guiding tube 61 is provided with an elastic damping telescopic cylinder 62 , and a plurality of rubber outlet holes 63 are arranged around the rubber guiding tube 61 .

[0033] The adhesive guide tube 61 is used to introduce hot melt adhesive for storage or, after storage, an external suction device is connected to the adhesive guide tube 61 to extract the hot melt adhesive for use.

[0034] Specifically, a threaded connection plug 41 is provided on the inner wall of the connecting cover 4, and a plug-in connection gap 42 is formed between the connecting cover 4 and the threaded connection plug 41. A sealing socket 43 plugged into the plug-in connection gap 42 is provided on the upper end of the storage inner cylinder 3, and the storage cylinder body and the threaded connection plug 41 are threadedly connected.

[0035] The connecting cover 4 is mainly used to seal the opening of the storage cylinder 3 .

[0036] Furthermore, a threaded connection hole 44 is provided at the axis of the connection cover 4 , and a sealing pipe cover 45 for sealing the rubber guide pipe 61 is connected to the connection cover 4 through the threaded connection hole 44 .

[0037] The sealing tube cover 45 is mainly used to seal the rubber guide tube 61 and press the rubber guide tube 61 into the interior.

[0038] More specifically, a sealing insert ring portion 451 is circumferentially provided on the sealing tube cover 45 , and a sealing connection groove 452 corresponding to the sealing insert ring portion 451 is provided on the wall surface of the connection cover 4 and located on the circumferential outer side of the threaded connection hole 44 .

[0039] This arrangement is used to ensure the sealing effect of the airtight detection gap.

[0040] In detail, the plug-in connection structure 5 includes a plug-in base 51 disposed on the support base 11, an annular sealing slot 52 is disposed on the upper end surface of the plug-in base 51, and an annular plug-in connection portion 53 corresponding to the annular sealing slot 52 is disposed at the bottom of the storage inner tube 3.

[0041] Preferably, a positioning groove 54 is provided on the upper end surface of the plug-in base 51 and is located circumferentially inside the annular sealing slot 52, and a positioning step 55 is provided at the bottom of the positioning groove 54. A spherical base 56 corresponding to the positioning groove 54 is provided at the bottom of the storage inner cylinder 3 and located circumferentially inside the annular plug-in connection portion 53.

[0042] To sum up, the principle of this embodiment is that when sealing, the bottom of the storage inner tube 3 is positioned on the plug-in connection structure 5, and a threaded rod is used to connect the positioning hole 25 on the storage inner tube 3 and the supporting connection hole 23 on the sealed outer shell 1 to achieve the central positioning of the storage inner tube 3. Secondly, the connecting cover 4 is used to close the opening of the storage inner tube 3 and insert the glue guide tube 61. The glue guide tube 61 is used to introduce hot melt glue into the storage inner tube 3. After the introduction is completed, the sealing tube cover 45 is used to close the glue guide tube 61, and the sealing cover body 12 is used to close the sealed outer shell 1.

[0043] The air pressure changes in the storage inner tube 3 are monitored daily through the airtightness detector 13 and displayed in real time through the air pressure display screen; when using hot melt adhesive, the sealing cover 12 is opened and the sealing tube cover 45 is unscrewed. At this time, the adhesive guide tube 61 pops out, and an external suction device is used to connect the adhesive guide tube 61 to suck the hot melt adhesive.

[0044] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0045] Although the present invention uses more terms such as sealed outer shell 1, support base 11, sealed cover 12, airtight detector 13, easy-open convex strip 14, pneumatic detection assembly 2, annular clamp seat 21, air pressure detection hole 22, support connection hole 23, strip positioning seat 24, positioning hole 25, insertion hole 26, storage inner tube 3, connection cover 4, threaded connection plug-in tube 41, plug-in connection gap 42, sealed socket 43, threaded connection hole 44, sealed pipe cover 45, sealing plug ring part 451, sealing connection groove 452, plug-in connection structure 5, plug-in base 51, annular sealing slot 52, annular plug-in connection part 53, positioning groove 54, positioning step 55, spherical base 56, rubber guide tube body structure 6, rubber guide tube 61, elastic damping telescopic tube 62, rubber outlet hole 63, etc., the possibility of using other terms is not excluded. The use of these terms is only for the purpose of more conveniently describing and explaining the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. A polyurethane hot melt adhesive sealing storage mechanism, comprising a sealed outer shell (1), wherein the bottom of the sealed outer shell (1) is connected to a support base (11) and the upper end is threadedly connected to a sealing cover (12), characterized in that: The sealed outer shell (1) is connected to a storage inner cylinder (3) for loading hot melt adhesive via a pneumatic detection component (2); the upper end of the storage inner cylinder (3) is closed via a connecting cover (4), and the lower end of the storage inner cylinder (3) is positioned via a plug-in connection structure (5) arranged in a support base (11); a glue guide tube structure (6) is axially plugged into the storage inner cylinder (3), and the upper end of the glue guide tube structure (6) passes through the connecting cover (4) and is closed via the above-mentioned sealing cover (12).

2. A polyurethane hot melt adhesive sealing storage mechanism according to claim 1, characterized in that: The pneumatic detection assembly (2) comprises a plurality of annular clamping seats (21) circumferentially arranged on the sealed outer shell (1), the annular clamping seats (21) being provided with at least one air pressure detection hole (22) and a plurality of support connection holes (23), and the storage inner cylinder (3) being circumferentially provided with a plurality of vertically arranged strip-shaped positioning seats (24), the strip-shaped positioning seats (24) being provided with insertion holes (26) corresponding to the air pressure detection holes (22) and positioning holes (25) corresponding to the support connection holes (23).

3. A polyurethane hot melt adhesive sealing storage mechanism according to claim 2, characterized in that: The positioning hole (25) and the supporting connection hole (23) are connected via a threaded rod, thereby supporting and positioning the storage inner cylinder (3), and forming an airtight detection gap between the storage inner cylinder (3) and the sealed outer shell (1).

4. A polyurethane hot melt adhesive sealing storage mechanism according to claim 1, characterized in that: The sealing cover (12) is provided with an airtightness detector (13) inserted into the storage inner cylinder (3), and the circumferential outer wall of the sealing cover (12) is provided with a plurality of easy-to-open convex strips (14).

5. A polyurethane hot melt adhesive sealing storage mechanism according to claim 1, characterized in that: The rubber guide tube body structure (6) comprises a rubber guide tube (61), the bottom of the rubber guide tube (61) is provided with an elastic damping telescopic cylinder (62), and a plurality of rubber outlet holes (63) are arranged around the rubber guide tube (61).

6. A polyurethane hot melt adhesive sealing storage mechanism according to claim 5, characterized in that: The inner wall of the connection cover (4) is provided with a threaded connection plug-in sleeve (41), and a plug-in connection gap (42) is formed between the connection cover (4) and the threaded connection plug-in sleeve (41). The upper end of the storage inner cylinder (3) is provided with a sealing socket (43) plugged into the plug-in connection gap (42), and the storage cylinder body and the threaded connection plug-in sleeve (41) are threadedly connected.

7. A polyurethane hot melt adhesive sealing storage mechanism according to claim 6, characterized in that: The connecting cover (4) is provided with a threaded connecting hole (44) at its axis, and the connecting cover (4) is connected to a sealing pipe cover (45) for sealing the rubber guide pipe (61) via the threaded connecting hole (44).

8. A polyurethane hot melt adhesive sealing storage mechanism according to claim 7, characterized in that: The sealing tube cover (45) is provided with a sealing insert ring portion (451) in the circumferential direction, and a sealing connection groove (452) corresponding to the sealing insert ring portion (451) is provided on the wall surface of the connection cover (4) and located on the circumferential outer side of the threaded connection hole (44).

9. A polyurethane hot melt adhesive sealing storage mechanism according to claim 1, characterized in that: The plug-in connection structure (5) comprises a plug-in base (51) arranged on a support base (11), an annular sealing slot (52) being provided on the upper end surface of the plug-in base (51), and an annular plug-in connection portion (53) being provided at the bottom of the storage inner cylinder (3) and corresponding to the annular sealing slot (52).

10. A polyurethane hot melt adhesive sealing storage mechanism according to claim 9, characterized in that: The upper end surface of the plug-in base (51) is provided with a positioning groove (54) located on the circumferential inner side of the annular sealing slot (52), and the bottom of the positioning groove (54) is provided with a positioning step (55). The bottom of the storage inner cylinder (3) and located on the circumferential inner side of the annular plug-in connection portion (53) is provided with a spherical base (56) corresponding to the positioning groove (54).

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