Split type foaming gun

Abstract

The utility model discloses a split type foaming gun, which solves the problems of troublesome improvement and high cost due to the fact that a gun body and a mounting part in the existing foaming gun are integrally formed and more components need to be changed during technical transformation, and adopts the technical scheme that the split type foaming gun comprises a grip and a mounting part, the adapter is installed on the upper side of the installation part, the gun barrel is connected to the front end of the installation part, a needle rod is coaxially arranged in the gun barrel, the installation part is located on the upper side of the grip, the trigger acts on the needle rod, and the trigger is pulled to achieve axial movement of the needle rod. The connecting part horizontally extends towards the direction of the gun barrel and is detachably and fixedly connected with the mounting part; and the trigger is connected in the connecting port on the connecting part in a clearance penetrating manner.

Description

Technical Field

[0001] The utility model relates to a foaming gun, in particular to a split-type foaming gun. Background Art

[0002] In building decoration, foaming agents are often used. The foaming agent is mainly used to coat the gaps between plates or other structures. After the foaming agent accumulated in the gap foams, expands and solidifies, it will seal the gap, thereby achieving the sealing of the gap. When applying the foaming agent, it is generally realized by means of a foaming gun. The structure of the foaming gun mainly includes a gun body and a barrel. A needle rod is arranged in the barrel. There is a liquid passage cavity in the gun body. The adapter is used to connect with the foaming tank. The adapter has an integral connection cylinder. A through channel is arranged at the axial position of the connection cylinder. The foaming agent sprayed out of the foaming tank will enter the liquid passage cavity in the gun body through the channel. A trigger is arranged on the gun body. The trigger is connected with the needle rod. When the trigger is pulled, the needle rod will move together with the trigger. After the needle rod moves towards the rear direction of the gun body driven by the trigger, a gap will be formed between the end of the needle rod and the nozzle arranged at the outer end of the barrel. The foaming agent will flow out to the outside of the barrel from this gap. The size of this gap is related to the flow rate of the foaming agent.

[0003] Chinese Patent Document (Publication No.: CN 215030757U) discloses a convenient foaming gun, which includes a foaming gun body, a rubber claw connected above the foaming gun body for fixing the foaming glue, and a control tube connected in front of the foaming gun body for controlling the spraying of the foaming glue. The front end of the control tube is detachably connected with a barrel, a connecting tube and a nozzle in sequence. Both ends of the barrel are respectively connected with a tube sleeve and a plug. The tube sleeve is threadedly connected with the control tube. One end of the connecting tube is connected with a socket sleeve threadedly connected with the plug, and the other end of the connecting tube is connected with a locking tube matched with the nozzle. The nozzle includes a clamping nozzle, and a joint connected behind the clamping nozzle and threadedly connected with the locking tube, and a sealing ring is connected to the front end of the joint; this convenient foaming gun can disassemble and clean the barrel part of the foaming gun, effectively prevent the possible blockage inside the barrel, and facilitate the user to replace and adjust the nozzle of the foaming gun according to the actual use requirements, effectively improving the use convenience of the user.

[0004] In the existing foaming gun, a mounting part is integrally formed on the gun body. The adapter is installed on the mounting part. The gun body is connected to the handle. The gun body makes there be a certain dimensional interval between the mounting part and the handle. In this kind of foaming gun with such a structure, the structure of the mounting part is integrated with the gun body. During the technical transformation process, in order to adapt to the change of the flow rate adjustment method or the change of the shape design, certain improvements need to be made to the mounting part. Under the existing structural conditions, the structure and shape of the mounting part and the gun body need to be changed together, which will also bring certain changes to the structure of the handle, and the modification range of the foaming gun is relatively large, thus resulting in an increase in the technical transformation cost. Summary of the Invention

[0005] The technical problem to be solved by the present utility model: Provide a split-type foaming gun, which can well meet the connection and fixing requirements of the installation part, and is beneficial to making some technical improvements to the installation part.

[0006] Technical measures taken to solve the above technical problem: A split-type foaming gun, including a grip, an installation part, an adapter is installed on the upper side of the installation part, a barrel is connected to the front end of the installation part, a needle rod is coaxially arranged in the barrel, the installation part is located on the upper side of the grip, a trigger acts on the needle rod, pulling the trigger is used to realize the axial movement of the needle rod, and its characteristics are that, the installation part and the grip are of a split structure, a connecting part is provided at the upper end of the grip, the connecting part extends horizontally towards the barrel, and the connecting part is detachably fixed to the installation part; the trigger is gap-fitted through the connection port on the connecting part.

[0007] The adapter is used to install a foaming agent storage tank for storing the foaming agent. Pull the trigger, and the foaming agent will be ejected from the nozzle at the front end of the barrel. The connecting part and the installation part are generally fixed together through connecting screws. When replacement is needed, the connecting screws can be unscrewed to disassemble and replace between different installation parts and the grip.

[0008] Further, a limiting body is prominently provided on the lower surface of the connecting part, the side edge of the limiting body facing the connecting part coincides with the front end of the connecting part, and the side edge and the front end are in contact with each other. This facilitates the assembly in place between the connecting part and the installation part, and can effectively improve the overall assembly efficiency of the foaming gun.

[0009] Further, a hinge structure is provided in the installation part, and the upper end of the trigger is hinged to the hinge structure. Hinging the trigger directly in the installation part has a simple structure and good working stability of the trigger.

[0010] Further, the hinge structure includes a connecting platform integrally formed on the inner peripheral surface of the installation part, a connection port is provided at the rear end of the connecting platform, the connection port opens towards the rear end of the installation part, and a protruding cylindrical convex body is provided on the upper end of the trigger, and the cylindrical convex body is movably inserted into the connection port. This hinge structure is simple and convenient for the assembly and disassembly between the trigger and the hinge structure.

[0011] Further, it further includes a rear seat connected to the grip, there is a gap between the rear seat and the installation part, and an adjusting wheel is rotatably arranged in this gap. The rear seat and the grip are generally integrated. By setting the adjusting wheel, the flow rate of the foaming gun can be adjusted, which can well meet the actual construction operation requirements.

[0012] Furthermore, a connecting strip is provided at the interval, and the connecting strip bridges over the upper opening of the interval. The provision of the connecting strip plays a certain decorative role and makes the overall integrity of the foaming gun good.

[0013] Furthermore, engaging mouths are respectively provided at the opposite ends of the mounting portion and the rear seat, the engaging mouths on the mounting portion and the rear seat open towards each other, and engaging bodies are respectively formed at both ends of the connecting strip, and the engaging bodies are embedded in the engaging mouths. Generally, the material of this connecting strip has a certain elasticity. By providing corresponding structures at the ends of the connecting strip, it can well adapt to the assembly of the connecting strip onto the foaming gun.

[0014] Furthermore, a cavity is provided in the grip, and a buckle cover is provided at the mouth of the cavity, and a spare nozzle of the foaming gun is used to be loaded into the cavity. Providing a cavity in the grip can make good use of the space inside the grip. It can provide a spare nozzle for the foaming gun, which can effectively extend the service life of the foaming gun. The liquid outlet form of the spare nozzle can be different, so that the foaming gun can have several liquid outlet forms, which can well meet the actual construction needs.

[0015] The utility model has the following beneficial effects: In this foaming gun, the grip and the mounting portion are of a split structure, and the two are detachably connected. When the mounting portion adapts to the change of the flow regulating mechanism inside the foaming gun, there is no need to change the mounting portion together with the gun body, which can effectively reduce the investment in molds and facilitate the grip to well adapt to the assembly requirements of different mounting portions. By providing the connecting portion at the upper end of the grip, the connection area between the mounting portion and the grip can be effectively increased, and the connection firmness between the mounting portion and the grip is good. The connecting portion extends horizontally towards the barrel direction, well adapting to the position where the mounting portion is located. A connection port for the trigger to extend into is provided on the connecting portion. The size of the connecting portion is relatively long, which can meet the assembly requirements for the mounting portion and also meet the mounting requirements for the trigger. Description of the Drawings

[0016] Figure 1 is a three-dimensional structure diagram of this foaming gun.

[0017] Figure 2 is Figure 1 an explosion diagram in one direction.

[0018] Figure 3 is Figure 1 an explosion diagram in another direction.

[0019] Figure 4 is an assembly schematic diagram between the mounting portion, the connecting strip and the trigger.

[0020] Figure 5 is an enlarged internal structure diagram of the mounting portion.

[0021] In the figure, 1, gun barrel; 11, gun muzzle; 2, adapter; 3, mounting part; 31, limiter; 32, inlay; 33, connecting port; 4, trigger; 5, adjusting wheel; 6, connecting strip; 61, inlay; 7, recoil; 8, grip; 81, connecting part; 82, buckle cover; 9, connecting screw. DETAILED DESCRIPTION

[0022] Combined with the drawings of the specification, the structure of the split foaming gun includes a handle 8 and a mounting portion 3 connected together, and the mounting portion 3 is located on the upper side of the handle 8. The handle 8 is used for the operator to hold it; the adapter 2 is installed on the upper side of the mounting portion 3, and the barrel 1 is connected to the front end of the mounting portion 3. The front end of the barrel 1 is provided with a gun nozzle 11, and a needle rod is coaxially provided in the barrel 1. The front end of the needle rod is used to conflict with the liquid outlet of the gun nozzle 11. The needle rod passes through the trigger 4, and a nut and other protrusions are provided on the needle rod. As the trigger 4 is pulled by the operator's finger, the trigger 4 will act on the needle rod, and the trigger 4 will realize the axial movement of the needle rod.

[0023] The mounting portion 3 and the grip 8 are of a split structure, and a connecting portion 81 is provided at the upper end of the grip 8, and the connecting portion 81 extends horizontally toward the direction of the barrel 1. The mounting portion 3 is cylindrical, and the front end of the mounting portion 3 is closed. The barrel 1 and the front end of the mounting portion 3 are sealed and threadedly connected. The adapter 2 is installed on the mounting portion 3, and the adapter 2 leads to the inside of the barrel 1. The needle rod passes through the mounting portion 3, and a plurality of O-rings are provided at the rear side of the mounting portion 3. The needle rod passes through the O-rings and extends to the outside of the mounting portion 3. The connecting portion 81 is in the shape of a long strip, and the connecting portion 81 extends along the axial direction of the barrel 1. The connecting portion 81 is fixed to the lower circumferential surface of the mounting portion 3. The connecting screw 9 is used to realize the detachable connection between the connecting portion 81 and the mounting portion 3.

[0024] In order to facilitate the rapid installation between the connecting part 81 and the mounting part 3, a limiting body 31 is protrudingly provided on the lower surface of the connecting part 81. The side edge of the limiting body 31 facing the connecting part 81 is C-shaped, and the front end of the connecting part 81 is a convex arc shape. The front end of the connecting part 81 is in contact with the side edge of the limiting body 31.

[0025] The connecting portion 81 has a certain length, and a transparent connecting port 33 is provided on the connecting portion 81. The trigger 4 passes through the connecting port 33 with a gap, and the upper end of the trigger 4 extends into the mounting portion 3. The needle rod passes through the trigger 4, and the trigger 4 can drive the needle rod to move axially. A hinge structure is provided in the mounting portion 3, and the upper end of the trigger 4 is hinged on the hinge structure. Figure 5As shown, the hinge structure includes a connection platform integrally formed on the inner peripheral surface of the installation part 3. A connection port 33 is provided at the rear end of the connection platform, and the connection port 33 opens towards the rear end of the installation part 3. A protruding cylindrical convex body is provided at the upper end of the trigger 4, and the cylindrical convex body is movably inserted into the connection port 33. When the trigger 4 is pulled, the cylindrical convex body rotates within the connection port 33.

[0026] This foaming gun further includes a rear seat 7 connected to the grip 8. The rear seat 7 and the barrel 1 are located on opposite sides of the installation part 3. There is a gap between the rear seat 7 and the installation part 3, and an adjustment wheel 5 is rotatably provided within this gap. The adjustment wheel 5 is in transmission connection with the adjustment mechanism. The adjustment mechanism rotatably extends into the rear seat 7. By rotating the adjustment wheel 5, the axial dimension of the adjustment mechanism changes, thereby limiting the maximum axial movement distance that the needle rod can reach under the drive of the trigger 4, and further realizing the control of the flow rate of the foaming gun.

[0027] In order to decorate the foam, a connecting strip 6 is provided at the gap. The connecting strip 6 bridges the upper opening of the gap. There are two connecting strips 6, and the two connecting strips 6 are arranged in parallel. The connecting strip 6 is generally made of plastic or rubber. Embedding ports 32 are respectively provided at the opposite ends of the installation part 3 and the rear seat 7. The embedding ports 32 on the installation part 3 and the rear seat 7 open towards each other. Embedding bodies 61 are respectively formed at both ends of the connecting strip 6, and the embedding bodies 61 at both ends of the connecting strip 6 are respectively embedded in the embedding ports 32 on the installation part 3 and the rear seat 7.

[0028] A cavity is provided within the grip 8. The cavity opens towards the lower end of the grip 8. A cover 82 is provided at the opening of the cavity, and the cavity is used to install the spare nozzle 11 of the foaming gun.

Claims

1. A split-type foaming gun, comprising a grip, a mounting part, an adapter is mounted on the upper side of the mounting part, a barrel is connected to the front end of the mounting part, a needle rod is coaxially arranged in the barrel, the mounting part is located on the upper side of the grip, a trigger acts on the needle rod, pulling the trigger is used to achieve the axial movement of the needle rod, and is characterized in that, The installation part and the grip are of a split structure. A connection part is provided at the upper end of the grip. The connection part extends horizontally towards the barrel direction, and the connection part is detachably and fixedly connected to the installation part. The trigger is intermittently inserted into the connection port on the connection part.

2. The foam gun according to claim 1, characterized in that, A limiting body is prominently provided on the lower surface of the connection part. The side edge of the limiting body facing the connection part coincides with the front end of the connection part, and the side edge and the front end are in contact with each other.

3. The foaming gun according to claim 1, wherein, An articulated structure is provided inside the installation part, and the upper end of the trigger is articulated on the articulated structure.

4. The foam gun according to claim 3, characterized in that, The articulated structure includes a connection platform integrally formed on the inner peripheral surface of the installation part. A connection port is provided at the rear end of the connection platform. The connection port opens towards the rear end of the installation part. A prominent cylindrical convex body is provided on the upper end of the trigger, and the cylindrical convex body is movably inserted into the connection port.

5. The foam gun according to any one of claims 1 to 4, characterized in that, It further includes a rear seat connected to the grip. There is a gap between the rear seat and the installation part, and an adjustment wheel is rotatably provided in this gap.

6. The foaming gun according to claim 5, characterized in that, A connection strip is provided at the gap, and the connection strip bridges the upper opening of the gap.

7. The foam gun according to claim 6, characterized in that, Engraved openings are respectively provided at the opposite ends of the installation part and the rear seat. The engraved openings on the installation part and the rear seat open towards each other. Inlays are respectively formed at both ends of the connection strip, and the inlays are embedded in the engraved openings.

8. The foam gun according to any one of claims 1 to 4, characterized in that, A cavity is provided inside the grip. A cover is provided at the opening of the cavity, and a spare nozzle of the foaming gun is loaded into the cavity.

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