CN217963272U

CN217963272U - Sealing structure and novel sealing glue gun

Info

Publication number: CN217963272U
Application number: CN202221268648.3U
Authority: CN
Inventors: 杨家付
Original assignee: Jiangsu Sushang Automobile Equipment Manufacturing Co ltd
Current assignee: Jiangsu Sushang Automobile Equipment Manufacturing Co ltd
Priority date: 2022-05-24
Filing date: 2022-05-24
Publication date: 2022-12-06
Anticipated expiration: 2032-05-24

Abstract

The utility model discloses a seal structure and novel sealed rubber coating rifle belongs to seal structure technical field. The sealing device comprises a body with a hollow structure inside, a sealing ring arranged at one end of the body, and a locking piece arranged at the other end of the body and adjacent to the sealing ring; the outer wall of the sealing ring is provided with a stop part which extends outwards along the radial direction for a preset length, and the thickness of the stop part is gradually reduced from inside to outside; the locking piece is used for providing position limitation on the sealing ring along the axial direction of the body, and the sealing ring is stressed to expand outwards to promote the stop part to be tightly attached to the inner wall of the body. The lip shape of the sealing ring is improved, so that the sealing performance is more reliable; and a sealing guide structure is added, the axial concentricity of the sealing ring and the gun needle is improved, the sealing working condition is improved, and the leakage of sealing failure sizing material is reduced.

Description

Sealing structure and novel sealing glue gun

Technical Field

The utility model belongs to the technical field of seal structure, concretely relates to seal structure and novel sealed rubber coating rifle.

Background

The glue gun is an apparatus for spraying or injecting glue material onto the surface of an object to be glued, and the glue gun is widely applied to industries such as building devices, electronic appliances, automobiles and automobile parts, ships and containers and the like.

When the internal high pressure that is of rifle among the prior art, the internal portion of rifle is fine seal structure, and when the internal low pressure that is of rifle, the internal portion of rifle is sealed not fine, so under the low pressure condition, use the spraying rifle, the motion of rifle needle can drive the colloid and can flow to other part positions departments, and then harm other parts, reduces the life-span of other parts.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: in order to solve the problem, the utility model provides a seal structure and novel sealed rubber coating rifle.

The technical scheme is as follows: a sealing structure comprises a body with a hollow structure inside; further comprising: the sealing ring is arranged at one end of the body; the outer wall of the sealing ring is provided with a stop part which extends outwards along the radial direction for a preset length, and the thickness of the stop part is gradually reduced from inside to outside; the locking piece is arranged at the other end of the body and is adjacent to the sealing ring; the locking piece is used for providing position limitation on the sealing ring along the axial direction of the body, and the sealing ring is stressed to expand outwards to promote the stop part to be tightly attached to the inner wall of the body.

In a further embodiment, the retaining member comprises at least: the locking block is fixedly arranged in the body; the locking block is of a hollow structure on one end face of the sealing ring, and an annular bulge extending inwards for a preset length is arranged on one end face back to the sealing ring; the guide ring is arranged in the hollow structure; and two end surfaces of the guide ring are respectively abutted against the sealing ring and the annular bulge.

By adopting the technical scheme: seal structure is formed between sealing washer, guide ring and the latch segment, through increase the guide ring behind the sealing washer, has increased sealing washer guide structure, prevents that the sealing washer from taking place the position change because of the motion of gun needle, carries on spacingly to the sealing washer, and then improves the concentricity of sealing washer and gun needle axis to and the laminating degree of sealing washer and body inner wall, improve sealed operating mode, reduce the inefficacy and leak.

In another embodiment, a novel sealant gun is provided, comprising: the device comprises a body, a switch mechanism arranged in the body, a power mechanism in transmission connection with the switch mechanism, and a storage cavity communicated with the body; the sealing ring and the locking piece are arranged in the body.

In a further embodiment, the body is internally provided with a containing cavity along the axis thereof; the body is provided with a sizing material input end and a sizing material output end; the body is divided into a first installation part and a second installation part.

By adopting the technical scheme: the rubber material is input from the rubber material input end, moves into the body and is sprayed out from the rubber material output end.

In a further embodiment, the switch mechanism includes a valve seat, and a gun needle adjacent to the valve seat; the valve seat is internally arranged in the first installation part and is positioned at the glue material output end; the rifle needle one end is located first installation department and the other end along deviating from the valve seat direction extends to in the second installation department.

By adopting the technical scheme: when the gun needle is abutted against the rubber material, the gun needle blocks the valve seat to prevent the valve seat from being communicated with the input end of the rubber material; when the gun needle is separated from the rubber material, the valve seat is communicated with the rubber material input end, and then the rubber material is sprayed out of the valve seat.

In a further embodiment, the power mechanism comprises: the spring is arranged in the second mounting part; one end of the spring, which is far away from the first mounting part, is connected with a screw cap, and the other end of the spring is connected with a screw block; the pushing block is connected to the outer wall of the body in a sliding manner; the push block comprises a first connecting part and a second connecting part, wherein the first connecting part is positioned between the first mounting part and the second mounting part, and the second connecting part is correspondingly connected to two ends of the first connecting part; the discharging trigger rod is arranged on the first installation part; the second connecting part is connected to the discharging trigger rod and is connected to the outer wall of the first mounting part in a sliding manner; the gun needle sequentially penetrates through the first connecting part and extends along the direction close to the screw block to be abutted against the screw block; the gun needle is fixedly connected with the first connecting part through a nut; the screw block is abutted against the side surface of the first connecting part.

By adopting the technical scheme: when the discharging trigger rod is held, the discharging trigger rod is close to the handle, so that the second connecting part moves close to the second mounting part, the gun needle moves close to the second mounting part, and the gun needle is separated from the valve seat; when the gun needle moves close to the second mounting part, extrusion force is applied to the screw block, so that the screw block is driven to move, the spring is extruded by the screw block, and the spring is compressed; when the power to ejection of compact trip lever is relieved, the spring resets because of elasticity, promotes the spiral shell piece and is close to the motion of first installation department, and then realizes that the rifle needle is close to the disk seat motion, and then realizes the butt of rifle needle and disk seat.

In a further embodiment, the top end of the first mounting part is provided with a pin shaft hole; the discharging trigger rod is connected to the first mounting part through a pin shaft; and clamping rings are correspondingly arranged at two ends of the pin shaft.

By adopting the technical scheme: realize that ejection of compact trigger bar installs on first installation department

In a further embodiment, a sealing ring is arranged between the valve seat and the gun needle.

By adopting the technical scheme: when the valve seat is abutted to the gun needle, the tightness between the valve seat and the gun needle is ensured.

Has the advantages that: the lip shape of the sealing ring is improved, so that the sealing performance is more reliable; the friction resistance is reduced, and the movement is more stable; the pressure resistance becomes good, and the applicable pressure range is wide; meanwhile, the structure is simple, and the installation is convenient; increase sealed guide structure, prevent that the sealing washer from taking place the skew because external force position, improve the axis concentricity of sealing washer and needle to and the laminating degree of sealing washer and body of a gun inner wall, and then improve sealed operating mode, reduce sealed inefficacy sizing material and leak, and then realize that pressure in the body of a gun also can keep very good leakproofness in the body of a gun under the low pressure condition.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is an exploded view of the structure of the present invention.

Fig. 3 is a cross-sectional view of the present invention.

Fig. 4 is a schematic structural view of the seal ring.

In fig. 1 to 4, each reference is: the screw cap comprises a screw cap 1, a spring 2, a screw block 3, a push block 4, a first connecting part 41, a second connecting part 42, a nut 5, a locking block 6, a guide ring 7, a sealing ring 8, a stopping part 81, a body 9, a first mounting part 91, a second mounting part 92, a pin shaft 10, a clamping ring 11, a gun needle 12, a sealing ring 13, a valve seat 14, a bolt 15, a discharging trigger rod 16, a handle 17 and a feeding rod 18.

Detailed Description

In order to solve the problems in the prior art, the applicant has conducted in-depth analysis on various existing schemes, which are specifically as follows:

when the internal high pressure that is of rifle among the prior art, the internal portion of rifle is fine seal structure, and when the internal low pressure that is of rifle, the internal portion of rifle seals is not fine, so under the low pressure condition, uses the spraying rifle, and the motion of rifle needle can drive the colloid and can flow to other part positions department, and then harms other parts, reduces the life-span of other parts.

The applicant proposes the following solution for this purpose, and the utility model provides a sealing structure, including the body 9 that is hollow structure inside, still include: a sealing ring 8 and a locking member. Wherein, the sealing ring 8 is fixed at one end of the body 9; the outer wall of the sealing ring 8 has a stop 81 extending radially outwards for a predetermined length, which is determined by the actual requirements and is preferably 1/10 of the outer diameter of the sealing ring 8. The thickness of the stopper portion 81 gradually decreases from the inside to the outside. As shown in fig. 4, the vertical straight line direction in which L is located is the above-mentioned length direction, and the horizontal straight line direction in which H is located is the above-mentioned thickness direction. The stopper 81 is formed integrally with the seal ring 8 and is made of the same material. The sealing ring 8 is made of high-temperature water resistant ultra-high hardness polyurethane material. The sealing ring 8 is forced to expand outwards to promote the stop part to be tightly attached to the inner wall of the body 9. The retaining member is fixed at the other end of the body 9 and abuts against the sealing ring 8. Because sealing washer 8 when the installation, or other parts during operation in the cooperation body 9, because of the exogenic action, the skew can take place for sealing washer 8 along 9 axes of body or perpendicular and axis direction, set up the retaining member and prescribe a limit to for providing along 9 ascending positions of body to sealing washer 8, and then realize spacing to sealing washer 8. Wherein, the retaining member at least comprises a locking block 6 and a guide ring 7. As shown in fig. 2, the locking block 6 is fixedly installed in the body 9; the locking block 6 is in a hollow structure on one end face of the sealing ring 8, an annular bulge with annular length extending inwards is arranged on one end face back to the sealing ring 8, the interface of the annular bulge is U-shaped, and the preset length is matched with the length of the guide ring 7. Namely, the guide ring 7 is installed in the hollow structure, and two end faces of the guide ring 7 are respectively abutted against the sealing ring 8 and the inner side face of the annular protrusion. The outer side face of the annular protrusion is abutted to the inner wall of the body 9 and the sealing ring 8 respectively, the sealing ring 8, the locking block 6 and the guide ring 7 form a sealing structure, and the sealing ring 8, the locking piece and the inner wall of the body 9 form a sealing structure.

In another embodiment, a new seal applicator gun is provided, as shown in fig. 1 to 3, comprising: the body is located the inside on-off mechanism of body, the power structure who is connected with the on-off mechanism transmission, the storage chamber with the body intercommunication to and foretell sealing washer 8 and retaining member.

The body 9 is a glue gun body, and an accommodating cavity is arranged in the body 9 along the axis direction of the body; a sizing material input end and a sizing material output end are arranged on the body 9, a feeding rod 18 is arranged on the sizing material input end, the feeding rod 18 is used for conveying sizing material into the body 9, a cavity, namely the storage cavity, is arranged inside the feeding rod 18, and a handle 17 can be fixed on the feeding rod 18 through a bolt 15; the body 9 is divided into a first mounting portion 91 and a second mounting portion 92.

The switch mechanism includes a valve seat 14 and a needle adjacent the valve seat 14. The valve seat 14 is mounted in the first mounting portion 91 and is located at the glue output end. One end of the needle 12 is located in the first mounting portion 91 and the other end of the needle 12 extends into the second mounting portion 92 in a direction away from the valve seat 14. The sealing ring 13 is installed at the contact part of the valve seat 14 and the gun needle 12, and when the valve seat 14 is abutted against the gun needle 12, the sealing performance between the valve seat 14 and the gun needle 12 is ensured.

Sealing washer 8, guide ring 7, latch segment 6 all cup joint on the gun needle 12, and sealing washer 8, latch segment 6 and the 9 inner walls butt of body, and sealing washer 8, guide ring 7, latch segment 6 are located first installation department 91. The gun needle 12 penetrates the seal ring 8, the guide ring 7 and the locking block 6 in sequence and extends to the second mounting portion 92. As shown in fig. 3, the upper and lower side surfaces and the left side surface of the sealing ring 8 are abutted against the inner wall of the body 9; the guide ring 7 is abutted against the right side surface of the sealing ring 8; in the embodiment, the locking block 6 is adopted to fix the positions of the sealing ring 8 and the guide ring 7, and the locking block 6 is sleeved on the guide ring 7 and is abutted against the inner wall of the body 9; seal structure is formed between sealing washer 8, guide ring 7 and latch segment 6, through increase guide ring 7 behind sealing washer 8, increases sealed guide structure promptly, and then has improved the concentricity of sealing washer 8 and rifle needle 12 axis, and then improves sealed operating mode, reduces to lose efficacy and leaks. Even the pressure value in the body 9 is in very little hour, the inside leakproofness that also can keep very high of body 9, when the reciprocating motion of rifle needle 12, the sizing material can not flow to the body of a gun outside, spiral shell lid 1, spring 2 or other positions because of the drive of rifle needle 12, and then has stopped sizing material and other part contact, prevents to harm the rubber coating rifle part. The lip shape of the sealing ring 8 is improved, the stopping part 81 is arranged, when the gun needle 12 moves, external force is applied to the sealing ring 8, the sealing ring 8 expands from inside to outside, the stopping part 81 is promoted to be further attached to the inner wall of the body 9, the sealing effect is improved, and the sealing performance of the body 9 is more reliable; the friction resistance is reduced, and the movement is more stable; the pressure resistance is improved, and the applicable pressure range is wide; meanwhile, the structure is simple, and the installation is convenient. The sealing ring 8 is made of high-temperature water-resistant and ultra-high-hardness polyurethane, so that the wear resistance, water resistance and high-temperature adaptability of the sealing ring 8 are effectively improved, the service life of the sealing ring 8 is prolonged, and the limitation of application occasions is reduced. In this embodiment, the shape of the inner wall of the first mounting portion 91 is partially modified, so that the shape of the inner wall of the first mounting portion is matched with the sealing ring 8 and the locking block 6, and a sealing structure is formed between the sealing ring 8, the guide ring 7, the locking block 6 and the inner wall of the body 9.

In a further embodiment, the power mechanism includes a spring 2, a push block 4, and an outfeed trigger lever 16. The top end of the first mounting part 91 is provided with a pin shaft 10 hole, and the discharging trigger rod 16 is connected with the first mounting part 91 through the pin shaft 10; two ends of the pin shaft 10 are correspondingly provided with clamping rings 11, and the clamping rings 11 are used for installing limiting discharging trigger rods 16. The discharging trigger rod 16 is in transmission connection with the gun needle 12, and the discharging trigger rod 16 is used for driving the gun needle 12 to move so as to enable the gun needle 12 to be abutted against or separated from the valve seat 14. The spring 2 is installed in the second installation part 92, a screw cap 1 is connected to one end of the spring 2 far away from the first installation part 91, and a screw block 3 is connected to the other end of the spring 2. The push block 4 is connected with the outer wall of the body 9 in a sliding way. The pushing block 4 includes a first connecting portion 41 between the first mounting portion 91 and the second mounting portion 92, and a second connecting portion 42 correspondingly connected to two ends of the first connecting portion 41. The second connecting portion 42 is connected to the discharging trigger rod 16 and slidably connected to the outer wall of the first mounting portion 91, when the discharging trigger rod 16 is held, the discharging trigger rod 16 is close to the handle 17, the discharging trigger rod 16 applies a force to the second connecting portion 42 close to the second mounting portion 92, and the second connecting portion 42 moves close to the second mounting portion 92. The gun needle 12 sequentially penetrates through the first connecting part 41 and continuously extends until the gun needle is abutted against the screw block 3, the gun needle 12 is fixed on the first connecting part 41 through the nut 5, and the screw block 3 is abutted against the side surface of the first connecting part 41. When the second connecting portion 42 moves close to the second mounting portion 92, the gun needle 12 is driven to move close to the second mounting portion 92, and then the gun needle 12 is separated from the valve seat 14. When the gun needle 12 moves close to the second mounting part 92, extrusion force is applied to the screw block 3, so that the screw block 3 is driven to move, the screw block 3 extrudes the spring 2, and the spring 2 is compressed; when the force on the discharging trigger rod 16 is removed, the spring 2 resets due to the elastic force, the screw block 3 is pushed to move close to the first installation part 91, and then the gun needle 12 is driven to move close to the valve seat 14, and the butt joint of the gun needle 12 and the valve seat 14 is realized.

When the pressure value in the accommodating cavity is a preset pressure value in an initial state or a working state, the first mounting part 91 is kept sealed with the sealing ring 8, the guide ring 7 and the locking block 6; the predetermined pressure value is within 0, k being any value greater than 0. The initial state is that the gun needle 12 is abutted against the valve seat 14 and used for preventing the valve seat 14 from being communicated with the rubber material input end; the working state is that the gun needle 12 is separated from the valve seat 14, and the valve seat 14 is communicated with the glue input end to realize the spraying of the glue from the valve seat 14. The rubber enters the body 9 from the feeding rod 18 to form pressure, when the discharging trigger rod 16 is pressed, the gun needle 12 moves backwards under the action of a lever, the valve seat 14 is opened to be communicated with the feeding rod 18, and the rubber in the cavity is sprayed out from the valve seat 14 through the body 9, so that the coating effect of the process is achieved. The sealing ring 8, the guide ring 7 and the locking block 6 are structurally innovative to provide a guarantee for the gun body and the gun needle 12 to work continuously, and the glue is prevented from leaking and solidifying.

Claims

1. A sealing structure comprises a body with a hollow structure inside; it is characterized by also comprising:

the sealing ring is arranged at one end of the body; the outer wall of the sealing ring is provided with a stop part which extends outwards along the radial direction for a preset length, and the thickness of the stop part is gradually reduced from inside to outside;

the locking piece is arranged at the other end of the body and is adjacent to the sealing ring; the locking piece is used for providing position limitation on the axial direction of the body for the sealing ring, and the sealing ring is stressed to expand outwards to promote the stop part to be tightly attached to the inner wall of the body.

2. A sealing structure according to claim 1, wherein said retaining member includes at least:

the locking block is fixedly arranged in the body; the locking block is of a hollow structure on one end face of the sealing ring, and an annular bulge extending inwards for a preset length is arranged on one end face back to the sealing ring;

the guide ring is arranged in the hollow structure; and two end surfaces of the guide ring are respectively abutted against the sealing ring and the annular bulge.

3. A novel seal glue gun, comprising: the device comprises a body, a switch mechanism arranged in the body, a power mechanism in transmission connection with the switch mechanism, and a storage cavity communicated with the body; characterized in that the body is internally provided with a sealing ring and a locking member according to any one of claims 1 to 2.

4. A novel sealing glue gun as claimed in claim 3, characterized in that the body is provided with a receiving cavity along its axis; the body is provided with a sizing material input end and a sizing material output end; the body is divided into a first installation part and a second installation part.

5. A novel seal glue gun according to claim 4, characterized in that said switch mechanism comprises a valve seat, and a gun needle adjacent to said valve seat; the valve seat is internally arranged in the first installation part and is positioned at the glue material output end; the rifle needle one end is located first installation department and the other end along deviating from the valve seat direction extends to in the second installation department.

6. A novel gun for sealing and gluing according to claim 5, wherein said actuating means comprises:

the spring is arranged in the second mounting part; one end of the spring, which is far away from the first mounting part, is connected with a screw cap, and the other end of the spring is connected with a screw block;

the pushing block is connected to the outer wall of the body in a sliding manner; the push block comprises a first connecting part and a second connecting part, wherein the first connecting part is positioned between the first mounting part and the second mounting part, and the second connecting part is correspondingly connected to two ends of the first connecting part;

the discharging trigger rod is arranged on the first installation part;

the second connecting part is connected to the discharging trigger rod and is connected to the outer wall of the first mounting part in a sliding manner; the gun needle sequentially penetrates through the first connecting part and extends along the direction close to the screw block to be abutted against the screw block; the gun needle is fixedly connected with the first connecting part through a nut; the screw block is abutted against the side surface of the first connecting part.

7. The novel seal glue gun according to claim 6, characterized in that a pin hole is formed at the top end of the first mounting part; the discharging trigger rod is connected to the first mounting part through a pin shaft; and clamping rings are correspondingly arranged at two ends of the pin shaft.

8. A novel seal glue gun according to claim 5, characterized in that a sealing ring is provided between the valve seat and the gun needle.