Foaming machine gun head for low-pressure foaming adhesive

Abstract

The utility model discloses a foaming machine gun head for low pressure foaming glue, including the gun head main part, one end of gun head main part is distributed with the connector, and the other end of connector is provided with the gun mouth, the middle part of one end of connector away from the gun mouth is provided with the threaded joint, the outside of connector is equipped with the cover plate, and one end of cover plate is fixedly installed with the arc clamping plate, the connector, the threaded joint, the arc clamping plate and the lock rod structure that are combined to set up, can be convenient subsequent realization to the quick replacement processing of gun mouth, when the gun mouth is damaged, no longer need to realize the replacement of whole gun head, more convenient and fast, and reduce the consumption of resources, and the practicality is higher, when the gun mouth passes the threaded joint and constitutes the threaded connection with the gun head main part, the arc clamping plate will be clamped in the inside of gun head main part, and the one end of lock rod will be input to the lateral wall of gun head main part, to realize the quick replacement between gun mouth and gun head main part.

Description

Technical Field

[0001] This utility model relates to the field of foaming machine gun heads for low-pressure foam adhesives, and in particular to a foaming machine gun head for low-pressure foam adhesives. Background Technology

[0002] A foaming machine, also known as a foam generator, is a device that produces foam from an aqueous solution of a foaming agent at a certain concentration. The foaming agent itself cannot automatically become foam; it must be produced through the mechanical action of the foaming machine. It can produce both soft and hard foam and can be used in various industries, such as refrigeration, insulation, cushions, decoration, and imitation wood. With the continuous development of the economy, people's demand for foaming machines is also increasing. The nozzle is an important component of the foaming machine.

[0003] For example, the utility model disclosed in CN217373165U is a low-pressure foaming machine gun head device for preventing dripping. It can facilitate the connection between the foaming agent gun head and the device by setting the insertion hole on the top of the upper pressure block. The threaded connection groove improves the sealing between the foaming agent gun head and the device, thereby preventing the raw material from leaking out. However, most of the existing low-pressure foaming machine gun heads are integrated structures. Therefore, after a long period of use, when the gun head is damaged, the entire gun head needs to be replaced. This is not only time-consuming and labor-intensive, but also increases resource consumption, resulting in poor overall practicality. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, this utility model provides a foaming gun head for low-pressure foaming adhesives. It solves the problem that existing low-pressure foaming gun heads, by having a connector hole on the top of the upper pressure block for easy connection between the foaming agent gun head and the device, and by using a threaded connection groove to improve the sealing between the foaming agent gun head and the device, thus preventing material leakage, are mostly of integrated structure. Therefore, after prolonged use, when the gun head is damaged, the entire gun head needs to be replaced, which is not only time-consuming and labor-intensive but also increases resource consumption, resulting in poor overall practicality.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a gun head for a low-pressure foaming adhesive, comprising a gun head body, a connector distributed at one end of the gun head body, and a nozzle at the other end of the connector, a threaded joint at the middle of the end of the connector away from the nozzle, a sleeve plate sleeved on the outer side of the connector, an arc-shaped retaining plate fixedly installed at one end of the sleeve plate, a return spring fixedly connected to the inner side of the arc-shaped retaining plate, and a locking rod fixedly connected to the other end of the return spring, a threaded groove formed at the middle of one end of the gun head body, an annular groove formed on the outer periphery of one end of the gun head body, a locking hole formed on the side wall of the gun head body, a sealing ring formed on the surface of one end of the gun head body, and a plug-in structure formed at the end of the gun head body away from the sealing ring.

[0006] As a preferred technical solution of this utility model, the plug-in structure includes a first plug-in tube, a second plug-in tube, and a groove. The first plug-in tube is disposed at the end of the gun head body away from the sealing ring, and the other end of the first plug-in tube is fixedly connected to the second plug-in tube. A groove is formed on the outer surface of the first plug-in tube.

[0007] As a preferred embodiment of this utility model, the inner cavity of the first insertion tube is provided with a filter element, the inner cavity of the second insertion tube is provided with a filter screen, and a flow guide seat is distributed on one side of the filter screen.

[0008] As a preferred embodiment of this utility model, the arc-shaped locking plates are equidistantly distributed along the center point of the sleeve plate, and the locking rod and the arc-shaped locking plates form a sliding connection.

[0009] As a preferred embodiment of this utility model, the lock holes are equidistantly distributed along the center point of the gun head body, and the lock holes and the gun head body form an integrated structure.

[0010] As a preferred embodiment of the present invention, the first insertion tube is hexagonal in shape, and the grooves are equidistantly distributed along the center point of the first insertion tube.

[0011] Compared with the prior art, the beneficial effects that this utility model can achieve are:

[0012] 1. By combining the set connector, threaded joint, arc-shaped clamp, and locking rod, the nozzle can be quickly replaced. When the nozzle is damaged, it is no longer necessary to replace the entire nozzle head, which is more convenient and faster, reduces resource consumption, and is more practical. When the nozzle is threaded to the nozzle head body through the threaded joint, the arc-shaped clamp will be locked inside the nozzle head body, and one end of the locking rod will be pushed into the side wall of the nozzle head body, thereby realizing the quick replacement between the nozzle and the nozzle head body.

[0013] 2. By combining the filter element, filter screen, and flow guide seat, the flowing colloid can be simply filtered and impurities removed. This removes larger impurities mixed in with the colloid, preventing excessive accumulation of impurities in the nozzle during subsequent use in the foaming machine, which would affect the subsequent output. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the foaming gun head for low-pressure foaming adhesive according to this utility model;

[0015] Figure 2 This is a side view of the connector structure in the foaming gun head for low-pressure foaming adhesive of this utility model;

[0016] Figure 3 This is a side view of the main body of the gun head in the low-pressure foaming adhesive gun head of this utility model;

[0017] Figure 4 This is a schematic diagram of the cross-sectional structure of the first insertion tube in the foaming machine gun head for low-pressure foam adhesive of this utility model;

[0018] The components include: 1. Gun head body; 2. Connector; 3. Nozzle; 4. Threaded connector; 5. Sleeve plate; 6. Arc-shaped retaining plate; 7. Return spring; 8. Locking rod; 9. Threaded groove; 10. Annular groove; 11. Locking hole; 12. Sealing ring; 13. First insertion pipe; 14. Second insertion pipe; 15. Groove; 16. Filter element; 17. Filter screen; 18. Flow guide seat. Detailed Implementation

[0019] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described in the implementation are all within the protection scope of this utility model without creative effort.

[0020] Example

[0021] Please refer to Figure 1As shown, this utility model provides a foaming machine gun head for low-pressure foam adhesive, including a gun head body 1, a connector 2 distributed at one end of the gun head body 1, and a nozzle 3 provided at the other end of the connector 2, a threaded joint 4 provided at the middle of the end of the connector 2 away from the nozzle 3, a sleeve plate 5 sleeved on the outer side of the connector 2, and an arc-shaped clamping plate 6 fixedly installed at one end of the sleeve plate 5, a return spring 7 fixedly connected to the inner side of the arc-shaped clamping plate 6, and a locking rod 8 fixedly connected to the other end of the return spring 7, a threaded groove 9 opened at the middle of one end of the gun head body 1, an annular groove 10 opened at the outer periphery of one end of the gun head body 1, a locking hole 11 opened on the side wall of the gun head body 1, a sealing ring 12 provided on the surface of one end of the gun head body 1, and a plug-in structure provided at the end of the gun head body 1 away from the sealing ring 12;

[0022] When in use, first install the nozzle 3 on one end of the nozzle body 1, and then connect the entire structure to the foaming machine by means of the first insertion tube 13 and the second insertion tube 14.

[0023] As a further implementation of this embodiment, such as Figure 1 , Figure 2 and Figure 3 As shown, a connector 2 is distributed at one end of the gun head body 1, and a nozzle 3 is provided at the other end of the connector 2. A threaded connector 4 is provided at the middle of the end of the connector 2 away from the nozzle 3. A sleeve plate 5 is sleeved on the outside of the connector 2, and an arc-shaped clamping plate 6 is fixedly installed at one end of the sleeve plate 5. The arc-shaped clamping plates 6 are equidistantly distributed along the center point of the sleeve plate 5, and a sliding connection is formed between the locking rod 8 and the arc-shaped clamping plate 6. A return spring 7 is fixedly connected to the inner side of the arc-shaped clamping plate 6, and a locking rod 8 is fixedly connected to the other end of the return spring 7. A threaded groove 9 is opened at the middle of one end of the gun head body 1, and an annular groove 10 is opened on the outer periphery of one end of the gun head body 1. A locking hole 11 is opened on the side wall of the gun head body 1. The locking holes 11 are equidistantly distributed along the center point of the gun head body 1, and the locking holes 11 and the gun head body 1 form an integrated structure. A sealing ring 12 is provided on the surface of one end of the gun head body 1, and a plug-in structure is provided at the end of the gun head body 1 away from the sealing ring 12.

[0024] When quick installation between the nozzle 3 and the head body 1 is required, the nozzle 3 and the head body 1 are first engaged by the connector 2. Then, the threaded groove 9 on one end of the head body 1 is used to achieve the threaded connection between the two. That is, rotating the nozzle 3 can achieve the quick threaded connection between the two. At this time, the arc-shaped locking plate 6 is fed into the inner side of the annular groove 10 and moves inside the annular groove 10. When the threaded connector 4 is fully connected to the threaded groove 9, the arc-shaped locking plate 6 will move to the appropriate position. Then, the reverse force generated by the deformation of the return spring 7 will push the locking rod 8 laterally, thereby feeding one end of the locking rod 8 into the inner side of the lock hole 11. This improves the stability of the connection between the nozzle 3 and the head body 1 and facilitates subsequent disassembly, making it more practical overall.

[0025] As a further implementation of this embodiment, such as Figure 1 and Figure 4 As shown, the insertion structure includes a first insertion tube 13, a second insertion tube 14, and a groove 15. The first insertion tube 13 is located at the end of the gun head body 1 away from the sealing ring 12, and the other end of the first insertion tube 13 is fixedly connected to the second insertion tube 14. The first insertion tube 13 is hexagonal in shape, and the grooves 15 are evenly distributed along the center point of the first insertion tube 13. The grooves 15 are provided on the outer surface of the first insertion tube 13. The inner cavity of the first insertion tube 13 is provided with a filter element 16, and the inner cavity of the second insertion tube 14 is provided with a filter screen 17. A flow guide seat 18 is distributed on one side of the filter screen 17.

[0026] When the entire structure needs to be installed with the foaming machine, the first insertion pipe 13 and the second insertion pipe 14 are inserted into the pre-reserved card interface of the foaming machine. The groove 15 is set to improve the stability of the engagement between the first insertion pipe 13 and the foaming machine. Then, when the liquid enters the inner side of the two insertion pipes, it first passes through the set guide seat 18 and flows through the multiple guide grooves opened on the inner side wall of the guide seat 18. With the set filter screen 17, the impurities in the liquid can be initially removed. Then, the multiple honeycomb holes opened on the inner side of the filter element 16 can further filter and remove impurities from the liquid, preventing excessive impurities from clogging the nozzle 3 and affecting the normal output of the liquid.

[0027] Specific working principle:

[0028] When quick installation between the nozzle 3 and the head body 1 is required, the nozzle 3 and the head body 1 are first engaged using the connector 2. Then, the threaded groove 9 on one end of the head body 1 creates a threaded connection; simply rotating the nozzle 3 achieves this quick threaded connection. At this time, the arc-shaped locking plate 6 is inserted into the inner side of the annular groove 10 and moves within it. When the threaded connector 4 is fully engaged with the threaded groove 9, the arc-shaped locking plate 6 moves to the appropriate position. The reverse force generated by the deformation of the return spring 7 then pushes the locking rod 8 laterally, inserting one end of the locking rod 8 into the inner side of the lock hole 11, thereby improving the connection between the nozzle 3 and the head body 1. The structure offers enhanced stability and ease of disassembly, resulting in greater overall practicality. When the entire structure is installed with the foaming machine, the first insertion pipe 13 and the second insertion pipe 14 are inserted into the pre-reserved interface on the foaming machine. The groove 15 is designed to improve the stability of the engagement between the first insertion pipe 13 and the foaming machine. When the liquid enters the inner side of the two insertion pipes, it first passes through the guide seat 18 and then flows through the multiple guide grooves on the inner wall of the guide seat 18. With the help of the filter screen 17, the impurities in the liquid can be initially removed. Then, the multiple honeycomb holes on the inner side of the filter element 16 can further filter and remove impurities from the liquid, preventing excessive impurities from clogging the nozzle 3 and affecting the normal output of the liquid.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A foaming gun head for low-pressure expanding foam, comprising a gun head body (1), characterized in that: One end of the gun head body (1) is provided with a connector (2), and the other end of the connector (2) is provided with a nozzle (3). A threaded joint (4) is provided in the middle of the end of the connector (2) away from the nozzle (3). A sleeve plate (5) is sleeved on the outside of the connector (2), and an arc-shaped clamping plate (6) is fixedly installed on one end of the sleeve plate (5). A return spring (7) is fixedly connected to the inner side of the arc-shaped clamping plate (6), and a locking rod (8) is fixedly connected to the other end of the return spring (7). A threaded groove (9) is opened in the middle of one end of the gun head body (1). An annular groove (10) is opened on the outer periphery of one end of the gun head body (1). A locking hole (11) is opened on the side wall of the gun head body (1). A sealing ring (12) is provided on the surface of one end of the gun head body (1). A plug-in structure is provided at the end of the gun head body (1) away from the sealing ring (12).

2. The foaming gun head for low-pressure foam adhesive according to claim 1, characterized in that: The plug-in structure includes a first plug tube (13), a second plug tube (14), and a groove (15). The first plug tube (13) is located at one end of the gun head body (1) away from the sealing ring (12), and the other end of the first plug tube (13) is fixedly connected to the second plug tube (14). The outer surface of the first plug tube (13) is provided with a groove (15).

3. The foaming gun head for low-pressure foam adhesive according to claim 2, characterized in that: The inner cavity of the first insertion tube (13) is provided with a filter element (16), the inner cavity of the second insertion tube (14) is provided with a filter screen (17), and a flow guide seat (18) is distributed on one side of the filter screen (17).

4. The foaming gun head for low-pressure expanding foam according to claim 1, characterized in that: The arc-shaped locking plates (6) are equidistantly distributed along the center point of the sleeve plate (5), and the locking rod (8) and the arc-shaped locking plates (6) form a sliding connection.

5. The foaming gun head for low-pressure expanding foam according to claim 1, characterized in that: The lock holes (11) are equidistantly distributed along the center point of the gun head body (1), and the lock holes (11) and the gun head body (1) form an integrated structure.

6. The foaming gun head for low-pressure foam adhesive according to claim 2, characterized in that: The first insertion tube (13) is hexagonal in shape, and the grooves (15) are equidistantly distributed along the center point of the first insertion tube (13).

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