WO2011041986A1

WO2011041986A1 - Foaming tool with safety control mechanism

Info

Publication number: WO2011041986A1
Application number: PCT/CN2010/077605
Authority: WO
Inventors: 王良; 王新泉
Original assignee: Wang Liang; Wang Xinquan
Priority date: 2009-10-08
Filing date: 2010-10-08
Publication date: 2011-04-14
Also published as: CN202983939U; CN102029247A

Abstract

A foaming tool with a safety control mechanism is provided. The foaming tool comprises a gun body (1), a valve core (32), a switch (4), a return spring (33) for resetting the valve core (32), and an adjustment member (5). Furthermore, a safety control mechanism is provided for preventing the adjustment member (5) from retracting accidentally, which can effectively avoid the removal and the free movement of the adjustment member (5), and can effectively prevent foaming agent from leaking or accidentally ejecting, etc.

Description

Foaming tool with safety control mechanism

Technical field

The invention relates to the field of building decoration tools and is a foaming tool for providing a foaming foam caulking agent.

Background technique

Say

Special materials are used for doors, windows, walls, concrete, air-conditioning installations, various pipe installations, vents and wire outlets in construction and houses where caulking (caulking) or book trapping is required. The foam sealant with high air pressure is used as a raw material. When used, the foam caulking agent is quantitatively released and foamed by a foaming tool to achieve the purpose of caulking or trapping. The foam caulking agent is sprayed by itself. Pressure to achieve the spray, for example: Foam sealant can be mixed with polyurethane and butane gas as the main raw material, with high viscosity, foam sealant is easy to leak or spray, it will solidify immediately upon contact with air, so the height It is sealed in the tank. Similarly, when the tank is installed on the foaming tool, the safety factor and sealing requirements for the foaming tool are also quite high. When the tank is installed on the inlet valve of the foaming tool, the foam is used in the tank or the foam is filled in the tank after the construction is completed, or the foam is left in the outlet of the foaming tool. When filling the grout, it is necessary to rotate the adjusting member and fix the valve core so that the switch can not pull the valve core, so that the valve core can press the liquid outlet to prevent the inadvertent or child pulling the switch and leak or accidentally spray or burn or explode. The danger, because the spring is fixed by the adjusting member, the force of the spring acts on the adjusting member, and the adjusting member has the above-mentioned effects, which causes many defects, such as: if the spring is made smaller Elasticity, although the rotation is easy, but the spring does not have enough force on the valve core, it is easy to cause the sealing of the valve core and the liquid outlet valve to be incomplete, and leakage or burning or explosion occurs, and foaming in the foaming tool is easy. The agent will solidify at any time to block the passage, causing the foaming tool to be scrapped. If the spring is made of a large elastic force, the valve core and the liquid discharge valve can be tightly sealed, so that the adjustment member directly acts on the spring and the adjustment member rotates very heavy, which is difficult or difficult to adjust. If the threaded fit between the adjusting piece and the gun body is slightly tight, it is difficult to adjust, it is difficult to lock the valve core, and the adjustment piece is often abandoned after construction, or is unwilling To use the adjusting member, the user does not lock the adjusting member and the valve core, and it is easy for the inadvertent or child to pull the switch to leak or accidentally spray or burn or explode, and it is easy to make the foaming agent in the foaming tool. Curing at any time and blocking the passage, causing the foaming tool to be scrapped.

In addition, since the adjusting member is used to adjust the moving distance of the spool, the adjusting member and the gun body can be separated from the gun body by screwing, so the spool is easily lost out of control, and the spool is disposed between the valve body and the gun body. Leakage is prone to occur at the seal.

There is currently a foaming gun, patent number 200620105928. 7 (announcement number CN2933607Y), including a gun body, a barrel, a compression spring, a needle bar, a wrench, the adjusting device is arranged on the gun body of the foaming gun, including a An adjusting screw extending outside the gun body, wherein the compression spring is sleeved on the needle bar and located in the barrel, one end acts on the needle bar, and the other end acts on the gun body, and one end of the needle bar protrudes The outer side of the gun body is connected to the wrench. The gun body is provided with a sliding cavity along the axial direction of the needle bar. The sliding cavity is provided with a slidable adjusting screw, and one end of the adjusting screw is screwed on the adjusting screw. The other end is fixed relative to the sliding cavity in the circumferential direction, the adjusting screw can be rotated, and is fixed axially with respect to the gun body. The adjusting screw of the structure is rotated in the original direction, and the adjusting screw threadedly connected with the adjusting screw is driven by rotating the adjusting screw, and the adjusting screw is adjusted. The axial displacement can be generated in the sliding cavity. This structure solves the above disadvantages of adjusting the weight, but the adjustment is too light, and the adjustment is unstable and the use is unsafe. For example: 1 The adjustment screw of the structure and the adjustment screw are in a movable and free state, and the adjustment screw is easy to be displaced due to easy movement and rotation, resulting in inaccurate adjustment or adjustment failure, and low adjustment stability. A defect with low security. 2 The amount of liquid from the foaming tool is controlled by the adjusting screw. During the construction process, the valve plug is pulled and the valve is pressed repeatedly to control the adjusting screw. The adjustment screw and adjusting screw are active and free. In the state, it is easy to cause the adjustment screw to loosen and generate displacement, so that it is easy to cause the outflow limit to be out of order or the amount of liquid to be excessively wasted to waste the foaming agent (foam sealant). 3 When the adjusting screw locks the valve core, if the pulling handle is repeatedly pulled by the hand, the force of the pulling force repeatedly acts on the adjusting screw, which is easy to cause the adjusting screw to loosen and generate displacement and unlock, the stability of the structure locking is low, and the leakage is easy or Accidental spray or burning or explosion or solidification. 4 If the adjusting screw and the adjusting screw are tightly fitted, the problem of easy rotation can be solved, but it is easy to cause the adjustment to be too tight and the rotation is very heavy, which makes it difficult for the user to adjust the amount of the foaming agent, and is also easy. After the construction is abandoned, the adjustment screw is abandoned, or the adjustment screw is not used. If the adjusting screw is not locked in time, it is easy to accidentally or the child pulls the switch and leaks or sprays. The danger of shooting or burning or exploding can also easily cause the foaming agent in the foaming tool to solidify at any time to block the passage, causing the foaming tool to be scrapped. 5 It is also possible to improve the matching precision of the adjusting screw and the adjusting screw, so that the adjusting screw does not feel heavy or light, but the machining precision must be very high, which will inevitably result in a high defect rate and double the processing cost. If the ground rises, even higher, it is difficult to be suitable for mass production. In addition, if the fine screw of the adjusting screw and the adjusting screw accumulates dust or rust spots and produces dross, the adjustment will be heavy, or even unable to rotate, causing foaming. The tool is scrapped. 6 Because the adjustment screw and the adjusting screw are completely in the active and free state, it is easy to be bumped or rubbed to make the adjusting screw rotate, and it is easy to release the adjusting screw to lock the valve core, so that the child may inadvertently pull the switch and leak or spray. Or the danger of burning or exploding. 7The adjusting screw is fixed axially with respect to the gun body. The adjusting screw of the structure can only be rotated in place and cannot be moved telescopically. Therefore, it is difficult to adjust whether the adjusting screw is in the state of locking the spool or in the state of unlocking the spool. Resolving, easily causing adjustment negligence without locking, is prone to leakage or the danger of spraying or burning or exploding.

Summary of the invention

The object of the present invention is to overcome the above-mentioned deficiencies of the prior art, and to provide a foaming tool which is easy, stable, safe and reliable, and effectively avoids the phenomenon of free movement of the adjusting member, preventing the adjusting member from retreating unexpectedly, and adjusting the movement obviously. Easy to grasp adjustment and locking conditions, high stability of adjustment and locking, improve construction quality and avoid waste of foaming agent, effectively prevent and avoid foaming tools that leak or accidentally spray or burn or explode or solidify .

Another object of the present invention is to provide a maximum flow control mechanism for controlling the maximum flow rate on the adjusting member, which is more safe and reliable, prevents excessive foaming of the foaming agent, causes waste of the foaming agent, affects the construction quality, and prevents leakage. Prevent the safety control mechanism from falling off and prevent the adjustment member from falling off.

Another object of the present invention is to adjust the convenience, accuracy, hand feeling, safety, simple structure, reasonable structure, low cost and convenient installation, and is a foaming tool suitable for mass production. The object of the invention is to achieve this:

A foaming tool having a safety control mechanism, comprising a gun body, a valve core, a switch, a return spring for resetting the valve core, and an adjusting member, characterized in that: a safety control mechanism for preventing the adjusting member from accidentally retreating is provided .

Preferably, the safety control mechanism is disposed on the adjusting member and the hair with which the relative displacement is generated. Between the other components of the blister tool, one end of the safety control mechanism acts on the adjustment member and the other end acts on other components of the foaming tool that cooperate with the adjustment member to produce a relative displacement.

Preferably, the adjustment member and the other members of the foaming tool with which it cooperates to produce a relative displacement are threadedly coupled.

Preferably, the safety control mechanism is a mechanism that utilizes a frictional force to cause an obstruction movement of the adjustment member. Preferably, the safety control mechanism comprises an elastic member or the safety control mechanism comprises an elastic member and a damping member, and the damping member is at least partially disposed at one end of the elastic member.

Preferably, the damping member disposed at one end of the elastic member is at least partially circular.

Preferably, the elastic member is a spring or a steel sheet, and the spring is preferably a coil spring, a leaf spring or a compression spring.

Preferably, the damping member is a ball.

Preferably, the elastic member is a spring, and the damping member is a ball.

Preferably, the adjustment member or other member of the foaming tool with which it is coupled to produce a relative displacement is provided with a groove in which the safety control mechanism is disposed.

Preferably, the adjusting member is located at a rear end portion of the gun body.

Preferably, the adjusting member is disposed axially along the valve core or obliquely inclined to the spool. Preferably, an adjusting cap is disposed on the adjusting member.

Preferably, the safety control mechanism is disposed between the adjusting member and the gun body.

Preferably, the safety control mechanism is disposed between the adjusting member and the gun body, and the first adjusting through hole is disposed on the gun body, and the adjusting member and the gun body pass through the first adjusting through hole Threaded and can be displaced relative to the gun body,

The safety control mechanism is disposed on the adjusting member, and one end of the safety control mechanism acts on an inner wall of the first adjusting through hole.

Or the safety control mechanism is disposed on the gun body, and one end of the safety control mechanism acts on the adjusting member.

Preferably, the inner wall of the first adjusting through hole in contact with the safety control mechanism at least partially forms a ring gear shape, an annular porous structure, an annular concave groove, an annular rough surface or an annular thread groove.

Or the surface of the adjusting member that is in contact with the safety control mechanism is at least partially formed into an annular gear shape, an annular porous structure, an annular concave groove, an annular rough surface or an annular thread groove.

Preferably, a fixing sleeve is disposed between the adjusting member and the gun body, the fixing sleeve is connected to the gun body, and a second adjusting through hole is disposed on the fixing sleeve, the adjusting member and the fixing The sleeve is threaded through the second adjustment through hole and can be displaced relative to the fixing sleeve,

The safety control mechanism is disposed on the adjusting member, and one end of the safety control mechanism acts on an inner wall of the second adjusting through hole provided on the fixing sleeve, Or the safety control mechanism is disposed on the fixing sleeve, and one end of the safety control mechanism acts on the adjusting member,

Or the safety control mechanism is disposed on the adjusting member, and the gun body is provided with a friction hole matched with a portion of the adjusting member, and one end of the safety control mechanism acts on the inner wall of the friction hole ,

Preferably, the inner wall of the second adjusting through hole in contact with the safety control mechanism is at least partially formed into a ring gear shape, an annular porous structure, an annular concave groove, an annular rough surface or an annular thread groove, or The surface of the adjusting member that is in contact with the safety control mechanism is at least partially formed into a ring gear shape, an annular porous structure, an annular concave groove, an annular rough surface or an annular thread groove.

Or the inner wall of the friction hole on the gun body in contact with the safety control mechanism is at least partially formed into a ring gear shape, an annular porous structure, an annular concave groove, an annular rough surface or an annular thread groove.

Preferably, a fixing sleeve is disposed between the adjusting member and the gun body, the fixing sleeve is connected to the gun body, and a second adjusting through hole is disposed on the fixing sleeve, the adjusting member and the fixing The sleeve is screwed through the second adjusting through hole and can be displaced relative to the fixing sleeve, and a fixing cap is connected to the fixing sleeve, and a third adjusting through hole is disposed on the fixing cap, and the fixing cap passes The third adjusting through hole is sleeved on the adjusting member,

The safety control mechanism is disposed on the adjusting member, and one end of the safety control mechanism acts on an inner wall of the third adjusting through hole.

Or the safety control mechanism is disposed on the fixed cap, and one end of the safety control mechanism acts on the adjusting member.

Preferably, the inner wall of the third adjusting through hole in contact with the safety control mechanism is at least partially formed into a ring gear shape, an annular porous structure, an annular concave groove, an annular rough surface or an annular thread groove, or The surface of the adjusting member that is in contact with the safety control mechanism is at least partially formed into a ring gear shape, an annular porous structure, an annular concave groove, an annular rough surface or an annular thread groove.

Preferably, the ring gear, the annular porous, the annular concave groove, the annular rough surface or the annular thread groove are parallel to the axial direction of the adjusting member or inclined to the axial direction of the adjusting member.

Preferably, the single gear, the single hole, the single groove or the single rough surface of the ring gear, the annular porous, the annular concave groove, the annular rough surface or the annular thread groove have a rectangular, polygonal or curved cross section.

Preferably, the safety control mechanism is an elastic member or the safety control mechanism is an elastic member and a damping member, the damping member is disposed at one end of the elastic member, the damping member is a ball, and the ball enters The ratio of the depth in the ring gear, the annular porous, the annular concave-convex groove, the annular rough surface or the annular thread groove to the diameter of the ball is less than 1/3, preferably less than 1/4, more preferably less than 1/5. Preferably, the force of one end of the safety control mechanism to the inner wall or surface contacting the contact is between 100 grams and 1000 grams, preferably between 200 grams and 700 grams, more preferably between 250 grams and 550 grams. .

Preferably, the adjusting member is provided with a first slot, the safety control mechanism is disposed in the first slot, or the fixing sleeve is provided with a second slot, and the safety control mechanism is disposed in the first slot a second slot, or a third slot is disposed on the gun body, the safety control mechanism is disposed in the third slot, or a fourth slot is disposed in the fixed cap, and the safety control mechanism is disposed in the second slot In the four slots.

Preferably, the contact surface of one end of the safety control mechanism that is in contact with the inner wall of the first adjustment through hole is a circular surface, or the contact surface of one end of the safety control mechanism that is in contact with the adjustment member is a circular surface, or a contact surface of one end of the safety control mechanism in contact with an inner wall of the second adjustment through hole is a circular surface, or one end of the safety control mechanism in contact with an inner wall of the friction hole The contact surface is a circular surface, or the contact surface of one end of the safety control mechanism that is in contact with the inner wall of the third adjustment through hole is a circular surface.

Preferably, the adjusting member is provided with a maximum flow control mechanism for controlling the maximum flow rate.

Preferably, the maximum flow control mechanism is a mechanism that controls the maximum moving distance of the adjusting member and/or the spool.

Preferably, the maximum flow control mechanism is disposed at an inner end of the adjusting member, and the inner end of the adjusting member refers to an end of the adjusting member located in the gun body.

Preferably, the maximum flow control mechanism is disposed on the adjustment member between the fixed sleeve and the fixed cap.

Preferably, the maximum flow control mechanism is a snap spring or a threaded fixing member.

The beneficial effects of the invention are:

Providing a foaming tool that is easy, stable, safe and reliable, effectively avoids the free movement of the adjusting member, prevents the adjusting member from retreating unexpectedly, adjusts the movement obviously, easily grasps the adjustment and locking condition, and stabilizes the adjustment and locking. High performance, improve construction quality and avoid waste of foaming agent, effectively prevent and avoid foaming tools that may leak or accidentally spray or burn or explode or solidify. In addition, the adjustment is convenient, accurate, and feels good. It is safe to use, simple in structure, reasonable in cost, low in cost and easy to install. It is a foaming tool suitable for mass production. In addition, the regulating member is also equipped with a maximum flow control mechanism for controlling the maximum flow rate, which is safer and more reliable and prevents foaming. Excessive injection of the agent causes waste of the foaming agent, affects the construction quality, prevents leakage, prevents the safety control mechanism from falling off, and prevents the adjustment member from falling off. DRAWINGS

Figure 1 is a schematic view showing the structure of a foaming tool of the present invention.

Fig. 2 is a schematic exploded view of the adjusting member, the safety control mechanism, the fixing sleeve and the maximum flow control mechanism of Fig. 1.

Fig. 3 is a structural schematic view of the adjusting member of Fig. 1 when the spool is unlocked.

Figure 4 is an enlarged schematic view of a portion A of Figure 3.

Fig. 5 is an enlarged schematic view showing the structure of the B-B section in Fig. 4.

Fig. 6 is a schematic structural view of another embodiment.

Fig. 7 is a schematic structural view of another embodiment.

Fig. 8 is a schematic structural view of another embodiment.

Figure 9 is a schematic exploded view of the adjusting member, the safety control mechanism and the maximum flow control mechanism of Figure 8.

10 is a schematic structural view of another embodiment.

Figure 11 is a schematic view showing the structure of another embodiment.

Figure 12 is a schematic view showing the structure of another embodiment.

Figure 13 is an enlarged schematic view of a portion D of Figure 12.

Figure 14 is a schematic view showing the structure of another embodiment.

Figure 15 is an enlarged schematic view of the portion E of Figure 14.

Figure 16 is a schematic view showing the structure of another embodiment.

Figure 17 is an enlarged schematic view showing the structure of the F-F in Figure 16.

Figure 18 is a schematic view showing the structure of another embodiment.

Figure 19 is a schematic view showing the structure of another embodiment.

Fig. 20 is a structural schematic view of the adjusting member of Fig. 19 when the spool is unlocked.

Figure 21 is a schematic view showing the angle between the adjusting member and the spool.

Figure 22 is a schematic view showing the structure of another embodiment.

23 is a schematic structural view of another embodiment. 1 - Gun body 10 - Barrel 11 - Fixing sleeve 12 Fixing cap 13 Second fixing sleeve 14 - Sealing ring 15 - Sealing pad 16 - Mounting seat 17 - Back cover 18 - - Through hole 19 - Handle 2 Inlet valve 21 Inlet nozzle 22 closure

23 --- second return spring 24 second sealing ring 25 --- second fixing seat 31 - liquid outlet 32 - valve core 321 - ear convex 33 - return spring 34 - liquid outlet 35 - limit member 36 - Spring seat 4-switch 5 - adjustment piece 51 - inner end

52―External end (hand control) 53―Adjustment cap 54, 54 54~ '—-Fixed screws

6—Safety control mechanism 60 Damping member 61— 62 Ball 63a First groove 63b Second groove 63c Third groove 63d --- Fourth groove

71--circle 72--threaded fixing piece 73--shield first adjusting through hole-8a second adjusting through hole--- 8b grinding hole--- 8c third adjusting through hole--- 8d

detailed description

Referring to all the drawings, a foaming tool having a safety control mechanism includes a gun body 1, a spool 32, a switch 4, a return spring 33 for resetting the spool 32, and an adjusting member 5, which is characterized in that one is provided for preventing The safety control mechanism for the accidental retraction of the adjusting member 5 is simple, stable, safe and reliable, effectively avoiding the free movement of the adjusting member, preventing the adjusting member from retreating unexpectedly, adjusting the movement obviously, and easily grasping the adjustment and locking situation. , high stability of adjustment and locking, improve construction quality and avoid waste of foaming agent, effectively prevent and avoid foaming tools that leak or accidentally spray or burn or explode or solidify.

Further, the safety control mechanism is disposed between the adjusting member and other components of the foaming tool that cooperate with each other to generate a relative displacement, one end of the safety control mechanism acts on the adjusting member, and the other end acts on The other components of the foaming tool that cooperate with the adjusting member to generate relative displacement, and further, the adjusting member and the other components of the foaming tool with which the relative displacement is matched, the structure has good hand feeling and convenient adjustment Accurate, safe and easy, simple and reasonable in structure, low in cost and easy to install, it is a foaming tool suitable for mass production.

Further, the adjusting member is provided with a maximum flow control mechanism for controlling the maximum flow rate, which is more safe and reliable. Further, the maximum flow control mechanism limits the maximum moving distance of the adjusting member and/or the spool, and prevents the foaming agent. Excessive injection phenomenon causes waste of foaming agent, affects construction quality, prevents leakage, prevents the safety control mechanism from falling off, and prevents the adjustment member from falling off. Referring to Figures 1, 2 and 3, a foaming tool having a safety control mechanism includes a gun body 1, a spool 32, a switch 4, a return spring 33 for resetting the spool 32, and an adjusting member 5, which are provided for use. The safety control mechanism for preventing the adjusting member 5 from accidentally retreating is easy to adjust and safe to use, and effectively prevents and avoids leakage or accidental spraying or burning or explosion or solidification.

Further, the safety control mechanism 6 is a mechanism for causing the adjusting member 5 to hinder the movement by using the friction force. The structure adjustment is easy, stable, safe and reliable, effectively avoiding the free movement of the adjusting member 5, and preventing the adjusting member 5 from appearing. Accidental retreat, adjustment movement is obvious, easy to grasp the adjustment situation, high stability of adjustment and locking, improve construction quality and avoid leakage or waste of foaming agent.

The safety control mechanism is disposed between the adjustment member and other components of the foaming tool that cooperate with each other to generate a relative displacement, one end of the safety control mechanism acts on the adjustment member, and the other end acts on the same When the adjusting member cooperates with other components of the foaming tool which generate relative displacement, when the adjusting member 5 is rotated, the adjusting member 5 and the safety control mechanism 6 generate friction, which effectively prevents the free movement of the adjusting member 5, the safety control The mechanism 6 is an elastic member or the safety control mechanism 6 is an elastic member and a damping member. The damping member is disposed at one end of the elastic member, and the elastic member or the elastic member pushes the damping member to exert a force on the contact surface, and the adjustment is increased. The friction and smoothness of the piece 5 is rotated to prevent the card from rotating.

Further, the elastic member may be a spring 61 (see FIG. 5) or a steel sheet, and the spring is preferably a coil spring, a leaf spring or a compression spring, and the damping member may be disposed at one end of the spring 61 for the ball 62 (see FIG. 5). The damper member may be a cylinder or a bullet shape or an ellipsoidal shape or a T-shape with a semicircular head, and a portion may be inserted into the spring 61 (see FIG. 18). The structure is simple and reasonable, the cost is low, and the installation is convenient.

Further, the damper member is preferably configured as a ball 62 (see FIG. 5). When the adjusting member 5 is rotated, the ball 62 rotates by itself to prevent the card from rotating. Referring to FIGS. 1 and 5, the safety control mechanism 6 may include a spring 61 and a circle. The bead 62 is provided with a first groove 63a (see FIGS. 2 and 5) on the adjusting member 5, and the spring 61 and the ball 62 are disposed in the first groove 63a, that is, the first groove 63a is provided with a ball on the ball The spring 61 on the 62 has a simple and reasonable structure, low cost and convenient installation.

A safety control mechanism is disposed between the adjustment member 5 and other components of the foaming tool that cooperate to produce a relative displacement, and further, between the adjustment member 5 and other components of the foaming tool that cooperate to produce relative displacement Threaded connection, for example: Referring to FIG. 1 to FIG. 5, a fixing sleeve 11 is disposed between the adjusting member 5 and the gun body 1, and the fixing sleeve 11 is fixed to the gun body 1 by thread connection. Fixing sleeve A second adjusting through hole 8b (see FIGS. 2 and 5) is disposed on the upper end, and the adjusting member 5 is screwed to the fixing sleeve 11 through the second adjusting through hole 8b and can be displaced relative to the fixing sleeve 11. The adjustment member 5 is caused to move telescopically, so that the user can sensibly move the adjustment member 5 to the position required for controlling the flow rate, and it is easy to grasp the locking condition.

The adjustment member or other components of the foaming tool with which the relative displacement is provided are provided with grooves, the safety control mechanism is disposed in the groove, the structure is simple and reasonable, the installation is convenient, and the cost is reduced, for example, see FIG. And the safety control mechanism 6 is disposed in the first slot 63a of the adjusting member 5, the structure is simple and reasonable, the installation is convenient, and the cost is reduced. One end of the safety control mechanism 6 acts on the fixing sleeve 11 The inner wall of the second adjustment through hole 8b is disposed to cause an obstruction movement between the two contact surfaces, and the contact surface of one end of the safety control mechanism in contact with the inner wall of the second adjustment through hole 8b is The round surface is adjusted to be smooth, preventing the card from rotating, effectively avoiding the phenomenon of free movement of the adjusting member 5, preventing the adjusting member 5 from accidentally retreating, improving the construction quality and avoiding leakage or waste of the foaming agent.

Referring to FIGS. 1 to 5, the inner wall of the second regulating through hole 8b provided in the fixing sleeve 11 which is in contact with the ball 62 in the safety control mechanism 6 is at least partially formed into a ring gear shape, a ring-shaped porous structure, and a ring-shaped concave-convex shape. a groove, an annular rough surface or an annular thread groove, the ring gear shape may also be similar to the annular concave groove, further, the ring gear, the annular porous, the annular concave groove, the annular rough surface or the annular thread groove and the axial direction of the adjusting member 5 Parallel or inclined with the axial direction of the adjusting member 5, the friction effect is better, and further, the ring gear, the annular porous, the annular concave groove, the annular rough surface or the ring gear groove, a single gear, a single hole, a single groove or The cross section of the single rough surface is rectangular, polygonal or curved, so that the frictional force and the clamping force are further improved, the free rotation of the adjusting member 5 is prevented more effectively, and the adjusting member 5 is prevented from being accidentally retracted, thereby greatly improving the stability of the adjustment. Sexuality, when the adjusting member 5 is rotated, a rubbing feeling or a '嗒嗒' sound is generated, and at the same time, the adjusting member 5 generates a telescopic movement, so that the user It is sensible to move the adjusting member 5 to the position required for controlling the flow. The structure adjustment is easy and stable, safe and reliable, and has a good hand feeling, easy to grasp the adjustment condition, does not feel light when rotating, and is convenient and accurate to adjust, and improves construction. Quality and avoiding the waste of the foaming agent. When the lock is required, the adjusting member 5 is rotated, and a rubbing feeling or a '嗒嗒' sound is generated, and the adjusting member 5 and the limiting member 35 and the valve are sensibly rotated. The core 32 is locked. Due to the action of the spring 61, the ball 62 is brought into contact with the adjusting member 5 to generate a topping force, which improves the frictional force and the engaging force, effectively avoids the free movement of the adjusting member 5, and is also effective. The rotation of the adjusting member 5 is easily caused by the collision or the rubbing, so that the adjusting member 5 stably locks the limiting member 35 and the spool 32, The stability of the locking is improved to avoid the danger of the foaming agent being sprayed by the child or inadvertently pulling the switch 4, effectively preventing leakage or accidental spraying or burning or explosion or solidification, especially the fixing sleeve 11 At least a portion of the inner wall of the second regulating through hole 8b is formed in a ring gear shape, and the ball 62 is in contact with the ring gear or the annular concave groove, and the use effect is better and the safety factor is higher.

The adjusting member 5 is located at the rear end of the gun body 1, and has a good hand feeling, convenient and accurate adjustment, simple and reasonable structure, and easy to grasp the adjustment situation.

The adjusting member 5 is disposed along the axial direction of the valve core 32, and has a simple and reasonable structure, low cost, convenient installation, convenient adjustment and convenient handling.

Further, the safety control mechanism 5 is an elastic member, and the elastic member applies a force to the contact surface to increase the friction when the adjusting member 5 rotates. Further, preferably, the safety control mechanism 5 is an elastic member and a damping member, and the damping member is at least The elastic member pushes the damper member to exert a force on the contact surface, increases the friction when the adjusting member 5 rotates, and prevents the elastic member from being stuck. Further, the elastic member is disposed at one end of the elastic member. The damper member has at least part of a circular surface, and the circular surface means that the contact surface of the damper member contacting the other component is a circular surface, such as the damper member and the second adjustment through hole 8b on the fixing sleeve 11. The inner wall is in contact with the round surface, which is smooth, easy to feel, stable, safe and reliable, and prevents the card from rotating, effectively avoiding the free movement of the adjusting member 5, preventing the adjusting member 5 from accidentally retreating and improving the construction quality. And avoid leakage or waste of foaming agent.

Referring to FIG. 5, preferably, the damper member is a ball 62 disposed at the end of the elastic member 61, and the ball 62 enters the concave portion of the ring gear (see FIG. 5), the annular porous, the annular concave groove, and the annular rough surface. Or the ratio of the depth in the annular thread groove to the diameter of the ball is less than 1/3, preferably less than 1/4, more preferably less than 1/5, which further improves the frictional force and the clamping force, and more effectively prevents the adjustment member 5 from being free. The phenomenon of rotation prevents the adjustment member 5 from being accidentally retracted, greatly improving the stability of the adjustment, and effectively preventing leakage or accidental injection or combustion or explosion or solidification.

Preferably, the force of one end of the safety control mechanism to the inner wall or surface contacting the contact is between 100 grams and 1000 grams, for example, the force of the elastic member on the contact surface is between 100 grams and 1000 grams. The elastic member may be a spring 62. The force of the spring 62 on the adjusting member 5 is between 100g and 1000g, so that the hand does not have a force when rotating, and does not feel light, making it easy, comfortable, stable, and safe. Reliable, good hand feeling when rotating, easy to grasp the range of rotation, adjustable controllable, sensitive, accurate adjustment, high adjustment and locking stability, improve construction quality and avoid waste of foaming agent, effectively prevent and avoid leakage or accident Spray or burn or explode or solidify. Further, the spring 62 pairs the adjusting member The force of 5 is between 200g and 700g, and the effect is better. Further, the force of the spring 62 on the adjusting member 5 is between 250 g and 550 g, which is more effective.

Referring to FIG. 1 to FIG. 4, a maximum flow control mechanism for controlling the maximum flow rate is provided on the adjusting member 5, and further, the maximum flow control mechanism is a mechanism for controlling the maximum moving distance of the adjusting member 5 and/or the spool 32, Still further, the maximum flow control mechanism is a snap spring 71 (see FIGS. 2 and 4) or a threaded fixture 72 (see FIG. 6 or FIG. 8 or FIG. 9), which has a simple structure, low cost, and convenient installation. high strength.

Referring to Fig. 1, the retaining spring 71 is disposed at the inner end of the adjusting member 5, which is convenient to install, high in strength, and not easy to fall off, so that the adjustment range is controlled to be larger and more reasonable, and the material is saved. The maximum flow control mechanism has several advantages: 1. When the adjusting member 5 moves outward (reverses) by a certain distance, referring to FIG. 3 and FIG. 4, the retaining spring 71 is blocked by the fixing sleeve 11, which limits the maximum moving distance of the adjusting member 5, thereby controlling the spool The maximum moving distance, that is, the maximum flow rate of the foaming agent is controlled, the excessive spraying of the foaming agent is effectively controlled, the foaming agent is wasted, the construction quality is affected, and at the same time, the maximum moving distance of the spool is controlled, and the valve is avoided. The core 32 protrudes from the sealing ring 14 disposed between the gun body 1 and the gun body 1 to easily leak liquid, and also avoids the danger of burning or explosion. 2. The safety control mechanism must act on the adjusting member and the foaming tool. Between the other components, it is easy to fall off. When the adjusting member 5 is moved outward by a certain distance, referring to FIG. 3 or FIG. 4, the retaining spring 71 is blocked by the root of the fixing sleeve 11, thereby The maximum moving distance of the adjusting member 5 is limited, that is, the maximum flow control mechanism keeps the safety control mechanism between the adjusting member and other components of the foaming tool, thereby effectively preventing the safety control mechanism from falling off, 3. When the adjusting member 5 When moving a certain distance outward, referring to FIG. 3 or FIG. 4, the circlip 71 is blocked by the fixing sleeve 11, thereby limiting the maximum moving distance of the adjusting member 5, and effectively preventing the adjusting member 5 from falling off.

Referring to FIG. 3, it is preferable that the maximum flow control mechanism is disposed on the inner end portion 51 of the adjusting member 5. The inner end portion of the adjusting member 5 refers to an end of the adjusting member located in the gun body 1, The outer end portion 52 of the adjusting member refers to an end of the adjusting member located outside the gun body, that is, an end adjusted by hand, which is a manual end.

Referring to Fig. 1, the foaming tool may further include a barrel 10, the barrel 10 and the gun body 1 are connected to form a liquid chamber 34, and the return spring 33 is sleeved on the valve core 32 and located in the liquid outlet chamber. In one of the 34, one end acts on the valve core 32, and the other end acts on the gun body 1. The structure is simple and reasonable, the elastic force is constant, the quality is stable, the cost is low, and the installation is convenient.

For a clearer understanding of the embodiment, see Figures 1 and 2, Figure 2 is the adjustment member of Figure 1, safe Schematic diagram of the disassembly structure of the control mechanism, the fixing sleeve and the maximum flow control mechanism, the first spring 61 and the ball 62 are fitted into the first groove 63a provided on the adjusting member 5 during assembly, and the ball 62 is held by hand to prevent falling off, and at the same time The adjusting member 5 and the fixing sleeve 11 are screwed together, so that the ball 62 and the spring 61 enter between the adjusting member 5 and the fixing sleeve 11, and then the card spring 71 is stuck on the inner end portion 51 of the adjusting member 5, Finally, the fixing sleeve 11 and the gun body 1 are fixed by threads, so that the structure of FIG. 1 is formed, the structure is simple and reasonable, the cost is low, the installation is convenient, and the utility model is suitable for mass production.

Referring to FIG. 1, the foaming tool having the safety control mechanism may further include an inlet valve having a liquid inlet function and a liquid outlet 31. For example, the inlet valve 2 may include a liquid inlet nozzle 21, a closure member 22, and a second return spring 33. And the second sealing ring 24, the inlet valve 22 may further include a second fixing seat 25, the inlet nozzle 21 and the closing member 22 are sealed by the second sealing ring 24, and the second fixing seat 25 is used for fixing the second sealing ring 24. , preventing the second sealing ring 24 from falling off. The valve core 32 protrudes from the liquid chamber 34 and the gun body 11 and can be sealed by the sealing ring 14 to improve the sealing performance. The sealing ring 15 (see Fig. 1) or the fixing seat 16 can also be disposed on the sealing ring 14 (see the figure). 12), protecting and fixing the sealing ring 14 to improve the sealing effect. The sealing ring 14 can be made of rubber or plastic, and can also include a barrel 10, and the barrel 10 and the gun body 1 are connected to form a liquid chamber 34, the return spring 33 is sleeved on the valve core 32 and located in the liquid discharge chamber 34. One end acts on the valve core 32, and the other end acts on the gun body 1. The structure is simple and reasonable, and the elastic force is constant. Stable quality, low cost and easy installation. One end of the valve core 32 extending from the liquid outlet chamber 34 is connected to the limiting member 35 through the switch 4, and the limiting member 35 can be coupled with the switch 4 when the switch 4 is pulled. The valve core 32 moves, so that the foaming agent entering the foaming tool is smoothly ejected, and the structure is reasonable and simple, and is suitable for mass production. The inlet valve 2 can also adopt various other structures, and this embodiment is merely illustrative. Example 2:

Referring to FIG. 6, the adjusting member 5 is provided with a maximum flow control mechanism for controlling the maximum flow rate. Further, the maximum flow control mechanism is a mechanism for controlling the maximum moving distance of the adjusting member 5 and/or the spool 32, and further, The maximum flow control mechanism is a snap spring 71 (see FIGS. 2 and 4) or a threaded fixture 72 (see FIG. 6 or FIG. 8 or FIG. 9), and the regulator has a maximum flow rate for controlling the maximum flow rate. Control mechanism, simple structure, low cost, convenient installation, high strength, safer and more reliable, prevent excessive foaming of the foaming agent, cause waste of foaming agent, affect construction quality, prevent leakage, prevent safety The full control mechanism is peeled off to prevent the adjustment member from falling off.

In addition, the maximum flow control mechanism is disposed at the inner end portion 51 of the adjusting member 5, and the inner end portion of the adjusting member 5 refers to an end of the adjusting member 5 located in the gun body 1, the maximum flow control The mechanism is a threaded fixing member 72 (see FIG. 6), and a spacer 73 may be disposed on the threaded fixing member 72 to increase the contact area with the fixing sleeve 11, and to improve the threaded fixing member 72. The strength, the threaded fixing member may be an internal threaded fixing member or an externally threaded fixing member, and the threaded fixing member 72 in Fig. 6 is an external thread and an internal threaded hole provided on the inner end portion of the adjusting member 5. Connected (refer to Figure 9), easy to install, high strength, not easy to fall off, make the adjustment range larger and more reasonable, save material, the maximum flow control mechanism has several advantages: 1, when the adjustment member 5 moves outward (Reverse) When a certain distance is obtained, referring to Fig. 6, the threaded fixing member 72 is blocked by the fixing sleeve 11, which limits the maximum moving distance of the adjusting member 5, thereby controlling the maximum moving distance of the spool 32. That is, the maximum flow rate of the foaming agent is controlled, the excessive spraying phenomenon of the foaming agent is effectively controlled, the foaming agent is wasted, the construction quality is affected, and at the same time, the maximum moving distance of the valve core is controlled, and the valve core 32 is prevented from extending. The sealing ring 14 provided between the gun body 1 and the gun body 1 is prone to liquid leakage, and the danger of burning or explosion is also avoided. 2. The safety control mechanism must act between the adjusting member and other components of the foaming tool. , easy to fall off, when the adjusting member 5 is moved outward by a certain distance, referring to FIG. 6, the threaded fixing member 72 is blocked by the root of the fixing sleeve 11, thereby limiting the maximum moving distance of the adjusting member 5, that is, The maximum flow control mechanism keeps the safety control mechanism between the adjusting member and other components of the foaming tool, effectively preventing the safety control mechanism from falling off. 3. When the adjusting member 5 is moved outward by a certain distance, refer to FIG. The threaded fixing member 72 is blocked by the fixing sleeve 11, thereby limiting the maximum moving distance of the adjusting member 5, effectively preventing the adjusting member 5 from appearing Off phenomenon.

This embodiment is similar to the embodiment 1, and the difference is that: the adjusting member 5 is provided with an adjusting cap 53, and the adjusting member 5 and the adjusting cap 53 are connected by a fixing screw 54'', so that the adjusting cap 53 can be made larger. The structure is more convenient to rotate by hand. In addition, the maximum flow control machine employs a threaded fixing member 72. Example 3:

Referring to FIG. 7, the embodiment is similar to the embodiment 1. The difference is that the adjusting member 5 is inclined along the axial direction of the valve core 32. The structure is simple and reasonable, the cost is low, the installation is convenient, the style is beautiful, and the adjustment is convenient. In addition, the fixing sleeve 11 and the gun body 1 are fixed by the fixing screws 54, 54', and the structure is simple and reasonable, and the installation is convenient. Example 4:

Referring to FIG. 8 and FIG. 9, the safety control mechanism is disposed between the adjusting member 5 and the gun body 1. Further, a first adjusting through hole 8a is disposed on the gun body 1, and the adjusting member 5 and the seat are provided. The gun body 1 is screwed through the first adjusting through hole 8a and can be displaced relative to the gun body 1, so that the adjusting member 5 is telescopically moved, so that the user can feel the moving member 5 to the desired position. a position for controlling the flow, the safety control mechanism 6 is disposed on the adjusting member 5, the adjusting member 5 is provided with a first groove 63a, and the ball 61 and the spring 62 are disposed in the first groove 63a, one end (ball 61) of the safety control mechanism 6 acts on the inner wall of the first adjustment through hole 8a to cause an obstruction movement between the two contact surfaces, and the first adjustment through hole 8a The contact surface of one end of the safety control mechanism that is in contact with the inner wall is a round surface, the adjustment is smooth, easy to feel, stable, safe and reliable, and prevents the card from rotating, effectively avoiding the free movement of the adjusting member 5, preventing Adjustment piece 5 appears Back, improve construction quality and avoid foaming leak or waste.

Further, the safety control mechanism 6 includes a spring 61 and a ball 62 acting on the spring 61, and a spring 61 and a ball 62 acting on the spring 61 are disposed in the first groove 63a of the adjusting member 5, the ball 62 acts on the inner wall of the first adjusting through hole 8a to cause an obstruction movement between the two contact surfaces. The structure adjusts the feeling, is easy, stable, safe and reliable, and effectively prevents the regulating member 5 from being freely movable. The phenomenon that the adjusting member 5 is prevented from retreating unexpectedly. Further, the inner wall of the first adjusting through hole that is in contact with the safety control mechanism 6 is at least partially formed into a ring gear shape, an annular porous structure, a ring concave groove, and a ring rough surface. Or the annular thread groove, the ring gear shape can also be similar to the annular concave groove, which further improves the friction force and the clamping force, more effectively prevents the adjustment member 5 from freely rotating, prevents the adjustment member 5 from accidentally retreating, and greatly improves the stability of the adjustment. Sexuality, when the adjusting member 5 is rotated, a rubbing feeling or a '嗒嗒' sound is generated, and at the same time, the adjusting member 5 generates a telescopic movement, so that the user has The adjustment member 5 is moved to the position required for controlling the flow rate. The structure adjustment is easy and stable, safe and reliable, the hand feel is good, the adjustment condition is easy to grasp, the lightness is not felt when rotating, the adjustment is convenient and accurate, and the construction is improved. Quality and avoiding the waste of the foaming agent. When the lock is required, the adjusting member 5 is rotated, and a rubbing feeling or a 'beep' sound is generated, and the adjusting member 5 and the limiting member 35 and the valve are sensibly rotated. The core 32 is locked, and due to the action of the spring 61, the ball 62 is brought into contact with the adjusting member 5 to generate a top force, which further improves the grinding. The friction force and the clamping force effectively avoid the phenomenon that the adjusting member 5 is freely movable, and also effectively avoids the collision or the wiping, which easily causes the adjusting member 5 to rotate, so that the adjusting member 5 stably locks the limiting member. 35 and the valve core 32, the stability of the locking is improved, the danger of the foam caulking agent being caused by the child or the inadvertent pulling of the switch 4 is avoided, and the leakage or accidental spraying or burning or explosion or solidification is effectively prevented.

In particular, at least a portion of the inner wall of the first regulating through hole 8a is formed into a ring gear shape or an annular concave and convex groove, and the ball 62 is in contact with the ring gear shape, and the use effect is better and the safety factor is higher.

The adjusting member 5 is disposed obliquely along the axial direction of the valve body 32, that is, the adjusting member 5 is obliquely disposed at the rear end portion of the gun body 1, and the outer end portion (hand control end) 52 of the adjusting member 5 is tilted upward. When adjusting, the hand feels better, the adjustment is convenient, and the style is beautiful. The angle N between the center line of the adjusting member 5 and the center line of the valve core 32 is between 2 degrees and 65 degrees, the operation is convenient, the hand feel is good, and the use effect is good. Further, an angle N between the adjusting member 5 and the center line of the spool 32 is preferably between 10 degrees and 50 degrees.

The return spring 33 is sleeved on the valve core 32 and located in the liquid discharge chamber 34, one end of which acts on the valve core 32 and the other end acts on the gun body 1, see FIG. An ear protrusion 321 may be formed on the valve core 32, a gasket (not shown) may be disposed on the ear protrusion 321, a return spring 33-end acts on the gasket, and the other end acts on the gasket provided on the gun body 1. 15 on.

For a clearer understanding of the embodiment, referring to FIG. 8 and FIG. 9, FIG. 9 is an exploded structural view of the adjusting member, the safety control mechanism and the maximum flow control mechanism of FIG. 8, and the first spring 61 and the ball 62 are assembled during assembly. In the first groove 63a provided on the adjusting member 5, the ball 62 is held by hand to prevent falling off, and the adjusting member 5 and the gun body 1 are screwed through the thread, so that the ball 62 and the spring 61 enter the adjusting member 5 and the gun. Between the bodies 1, the detachment is prevented, and then the through holes 18 provided at the sides of the gun body 1 are placed with the threaded fixing members 72 from the through holes 18 so that the threaded fixing members 72 are in contact with the adjusting member 5. Connected and fixed, in general, the handle 19 of the gun body 1 and the gun body component structure, the threaded fixing member 72 is connected from the through hole 18 to the adjusting member 5 to be fixed, and then the gun is fixed. The body and the handle are connected by a fixing screw 54'', thus forming the structure of Fig. 8, the structure is simple and reasonable, the cost is low, the installation is convenient, and it is suitable for mass production. Example 5:

Referring to Fig. 10, the embodiment is similar to Fig. 9. The safety control mechanism is disposed between the adjusting member and other components of the foaming tool that cooperate with each other to generate a relative displacement. Further, the safety control mechanism 6 is disposed in the Between the adjusting member 5 and the gun body 1, for example, the safety control mechanism is disposed between the adjusting member 5 and the gun body 1, and the first adjusting through hole is disposed on the gun body 1 (refer to FIG. 9). The adjusting member 5 is screwed to the gun body 11 through the first adjusting through hole and is relatively displaceable with the gun body 1.

The difference is that the safety control mechanism 6 is disposed in the third groove 63c provided on the gun body 1, and one end of the safety control mechanism 6 acts on the adjusting member 5 to generate between the two contact surfaces. In the obstruction movement, the contact surface of one end of the safety control mechanism 6 in contact with the adjusting member 5 is a round surface, which is smooth, easy to feel, stable, safe and reliable, and prevents card rotation. Further, the surface of the adjusting member that is in contact with the safety control mechanism is at least partially formed into a ring gear shape, an annular porous structure, an annular concave groove, an annular rough surface or an annular thread groove, which has better friction effect and higher safety factor. .

The safety control mechanism comprises a spring 61 and a ball 62. The ball 62 is in contact with the surface of the adjusting member 5. The structure is simple and reasonable, the stability is high, and the use effect is better. Further, the surface of the adjusting member 5 contacting the ball 62 is at least at least The part is formed into a ring gear shape, a ring-shaped porous structure, an annular concave-convex groove, a ring-shaped rough surface or an annular thread groove, so that the friction force and the engaging force are further improved, and the adjustment member 5 is prevented from being freely rotated, and the adjusting member 5 is prevented. The accidental retreat greatly improves the stability of the adjustment. When the adjustment member 5 is rotated, a frictional feeling or a '嗒嗒' sound is generated, and at the same time, the adjustment member 5 generates a telescopic movement, so that the user feels the adjustment. The piece 5 is moved to the position required for controlling the flow. The structure adjustment is easy and stable, safe and reliable, the hand feel is good, the adjustment condition is easy to grasp, the lightness is not felt when rotating, the adjustment is convenient and accurate, the construction quality is improved, and the hair is prevented from being raised. The foaming agent is wasted. When the locking is required, the adjusting member 5 is rotated, and a rubbing feeling or a '嗒嗒' sound is generated. During the rotation, the adjusting member 5 is sensibly locked with the limiting member 35 and the valve core 32. Due to the action of the spring 61, the ball 62 is brought into contact with the adjusting member 5 to generate a top force, which further improves the friction force and the card. The joint force effectively avoids the phenomenon that the adjusting member 5 is freely movable, and also effectively avoids the collision or the rubbing, which easily causes the adjusting member 5 to rotate, so that the adjusting member 5 stably locks the limiting member 35 and the spool 32, improve the stability of the lock, avoid the danger of foaming the foaming agent caused by the child or inadvertently pulling the switch 4, effectively preventing leakage or accidental spraying or burning or explosion or solidification, especially with the ball At least one part of the surface of the adjusting contact It is divided into a ring gear shape or a ring-shaped concave and convex shape, which is convenient for processing and has better effect.

Example 6:

Referring to FIG. 11, the embodiment is similar to FIG. 1, and the difference is that: the adjusting member 5 is disposed obliquely along the axial direction of the valve body 32, that is, the adjusting member 5 is obliquely disposed at the rear end portion of the gun body 1, The outer end portion (hand control end) of the adjusting member 5 is upturned, the hand feel is better when adjusted, and the adjustment is convenient, and the style is beautiful. The inlet valve 2 can be constructed in various configurations with a liquid inlet capability.

Example 7

Referring to Fig. 12 and Fig. 13, this embodiment is similar to the embodiment 1, except that the position at which the return spring 33 is disposed is different.

Further, the elastic member may be a spring 61 (see FIG. 13) or a steel sheet, and the spring is preferably a coil spring, a leaf spring or a compression spring, and the damping member may be disposed at one end of the spring 61 (see FIG. 13). The damper member may be a cylinder or a bullet shape or an ellipsoidal shape or a T-shape with a semicircular head, and a portion may be inserted into the spring 61 (see FIG. 18). The structure is simple and reasonable, the cost is low, and the installation is convenient.

Further, the damper member is preferably configured as a ball 62 (see FIG. 13). When the adjusting member 5 is rotated, the ball 62 rotates by itself to prevent the card from rotating. The safety control mechanism 6 may include a spring 61 and a ball 62, and the adjusting member 5 The first groove 63a is disposed, and the spring 61 and the ball 62 are disposed in the first groove 63a, that is, the first groove 63a is provided with a spring 61 acting on the ball 62, and the structure is simple and reasonable, and the cost is low. Convenience.

Further, the adjusting member 5 and the other components of the foaming tool with which the relative displacement is matched, for example, referring to FIG. 13 or FIG. 14, a fixing sleeve is disposed between the adjusting member 5 and the gun body 1. 11. The fixing sleeve 11 is fixed to the gun body 1 by threading, and the fixing sleeve 11 is provided on the fixing sleeve 11 The adjusting through hole 8b (refer to FIG. 2 and FIG. 5), the adjusting member 5 and the fixing sleeve 11 are screwed through the second adjusting through hole 8b and can be relatively displaced with the fixing sleeve 11, so that the adjusting member 5 The telescopic movement is generated, so that the user can feel the position of the adjustment member 5 to control the flow rate with ease, and it is easy to grasp the locking condition.

The adjustment member or other components of the foaming tool with which the relative displacement is provided are provided with grooves, the safety control mechanism is disposed in the groove, the structure is simple and reasonable, the installation is convenient, and the cost is reduced, for example, see FIG. The safety control mechanism 6 is disposed in the first slot 63a of the adjusting member 5, and one end of the safety control mechanism 6 acts on the inner wall of the second adjusting through hole provided on the fixing sleeve 11 to make two An obstruction movement is generated between the contact surfaces, and a contact surface of one end of the safety control mechanism that is in contact with the inner wall of the second adjustment through hole 8b is a round surface, the adjustment is smooth, the card rotation is prevented, and the adjustment is effectively avoided. The free movement of the piece 5 occurs, preventing the adjustment member 5 from accidentally retreating, improving the construction quality and avoiding the leakage or waste of the foaming agent.

Further, at least part of the inner wall of the second regulating through hole provided in the fixing sleeve 11 which is in contact with the ball 62 in the safety control mechanism 6 is formed into a ring gear shape, an annular porous structure, a ring concave groove, a ring rough surface or The annular thread groove, the ring gear shape may also be similar to the annular concave groove. Further, the ring gear, the annular porous hole, the annular concave groove, the annular rough surface or the annular thread groove are parallel to the axial direction of the adjusting member 5 or the adjustment The axial inclination of the piece 5, the friction effect is better, and further, the single gear of the ring gear, the annular porous, the annular concave groove, the annular rough surface or the annular thread groove, the single hole, the single groove or the single rough surface cross section is Rectangular, polygonal or curved, so as to further improve the friction and the clamping force, more effectively prevent the adjustment member 5 from freely rotating, preventing the adjustment member 5 from accidentally retreating, greatly improving the stability of the adjustment, when the adjustment member is rotated At 5 o'clock, there will be a feeling of rubbing or a 'beep' sound, and at the same time, the adjusting member 5 produces a telescopic movement, which gives the user a sense of The adjustment member 5 is moved to the position required for controlling the flow, the structure adjustment is easy and stable, safe and reliable, the hand feel is good, the adjustment condition is easy to grasp, the lightness is not felt when rotating, the adjustment is convenient and accurate, and the construction quality is improved. And to avoid the waste of the foaming agent, when the lock is required, the adjusting member 5 is rotated, and a rubbing feeling or a '嗒嗒' sound is generated, and the adjusting member 5 and the limiting member 35 and the spool are sensibly rotated. 32 locking, due to the action of the spring 61, the ball 62 is brought into contact with the adjusting member 5 to generate a top force, which improves the friction force and the engaging force, effectively avoids the free movement of the adjusting member 5, and effectively avoids It is easy to cause the adjusting member 5 to rotate by being bumped or rubbed, so that the adjusting member 5 stably locks the limiting member 35 and the valve core 32, thereby improving the stability of the locking, avoiding the child or inadvertently pulling the switch. 4 and the risk of foam sealant injection Risky, effectively preventing leakage or accidental spraying or burning or explosion or solidification, in particular, the inner wall of the second adjusting through hole 8b provided on the fixing sleeve 11 is at least partially formed into a ring gear shape, and the ball 62 is The ring gear or the annular concave groove are in contact with each other, and the use effect is better, and the safety factor is higher.

Referring to Fig. 12, a maximum flow control mechanism for controlling the maximum flow rate is provided on the regulating member 5, and further, the maximum flow control mechanism is a mechanism for controlling the maximum moving distance of the adjusting member 5 and/or the spool 32.

Still further, the maximum flow control mechanism is a snap spring 71 (see FIG. 12) or a threaded fixing member 72 (see FIG. 6 or FIG. 8 or FIG. 9), and the snap spring 71 is disposed at the inner end of the adjusting member 5. Easy to install, high strength, not easy to fall off, make the adjustment range larger and more reasonable, save material, the maximum flow control mechanism has several advantages: 1. When the adjustment member 5 moves outward (back) a certain distance Referring to FIG. 13, the retaining spring 71 is blocked by the fixing sleeve 11, which limits the maximum moving distance of the adjusting member 5, thereby controlling the maximum moving distance of the spool 32, that is, controlling the maximum flow rate of the foaming agent, effectively Controlling the excessive foaming of the foaming agent, causing waste of the foaming agent, affecting the construction quality, and simultaneously controlling the maximum moving distance of the spool, preventing the valve core 32 from protruding from the sealing ring 14 provided between the gun body 1 and the gun body 1 It is prone to liquid leakage and avoids the danger of burning or explosion. 2. The safety control mechanism must act between the adjusting member and other parts of the foaming tool, and it is easy to fall off. When the adjusting member 5 is moved outward by a certain distance, referring to FIG. 13, the retaining spring 71 is blocked by the root of the fixing sleeve 11, thereby limiting the maximum moving distance of the adjusting member 5, that is, the maximum flow control mechanism enables the safety control mechanism Keeping between the adjusting member and other parts of the foaming tool, effectively preventing the safety control mechanism from falling off. 3. When the adjusting member 5 is moved outward by a certain distance, referring to Fig. 13, the retaining spring 71 is fixed by the 11th gear. Live, thereby limiting the maximum moving distance of the adjusting member 5, effectively preventing the adjusting member 5 from falling off.

Preferably, the maximum flow control mechanism is disposed at the inner end portion 51 of the adjusting member 5, and the inner end portion of the adjusting member 5 refers to an end of the adjusting member located in the gun body 1, and the outer end of the adjusting member The portion 52 refers to an end of the adjustment member located outside the gun body, that is, an end that is adjusted by hand, and is a manual end.

This embodiment is similar to FIG. 1 except that the valve core 32 extends out of the liquid discharge chamber 34, and the return spring 33 is disposed outside the liquid discharge chamber 34, and one end thereof acts on the valve core 32. The other end acts on the fixing sleeve 11, and further, the valve core 32 extending out of the liquid discharge chamber 34 is connected to the limiting member 35, and the end of the return spring 33 acts on the limiting member 35. The other end acts on the fixing sleeve 11, and further, a spring seat 36 is disposed on the limiting member 35, the return spring 33-end acts on the spring seat 36, and the other end acts on the fixing sleeve 11 Upper, reasonable structure, simple assembly, suitable for large quantities produce. The arrangement of the return spring 33 may also be the structure as shown in FIG.

Example 8

Referring to FIG. 14 and FIG. 15, the embodiment is similar to FIG. 12, and a second adjusting through hole (refer to FIG. 2) is disposed on the fixing sleeve 11, and the adjusting member 5 and the fixing sleeve 11 pass through the second adjusting through. The hole thread is connected and can be displaced relative to the fixing sleeve 11, so that the user can sensibly move the adjusting member 5 to the position required for controlling the flow rate, and the locking condition can be easily grasped.

The difference with Figure 12 is:

The adjustment member or other components of the foaming tool with which the relative displacement is provided are provided with grooves, the safety control mechanism is disposed in the groove, the structure is simple and reasonable, the installation is convenient, and the cost is reduced, for example, the safety The control mechanism 6 is disposed in the second slot 63b disposed on the fixing sleeve 11, the structure is simple and reasonable, the installation is convenient, and the cost is reduced. One end of the safety control mechanism 6 acts on the adjusting member 5 to make two An obstruction movement is generated between the contact surfaces, and a contact surface of one end of the safety control mechanism that is in contact with the adjusting member 5 is a round surface, and the adjustment is smooth, preventing the card from rotating, thereby effectively preventing the regulating member 5 from being freely movable. Preventing the adjustment member 5 from accidentally retreating, improving the construction quality and avoiding leakage or waste of the foaming agent. Further, at least part of the surface of the adjusting member 5 in contact with the safety control mechanism 6 is formed into a ring gear shape. The annular porous structure, the annular concave groove, the annular rough surface or the annular thread groove have better use and safety effects, and this embodiment has The same effects as in Embodiment 1, is not repeated herein.

Example 9

Referring to FIG. 16, a fixing sleeve 11 is disposed between the adjusting member 5 and the gun body 1. The fixing sleeve 11 is connected to the gun body 1, and a second adjusting through hole is disposed on the fixing sleeve 11 (refer to 2), the adjusting member 5 and the fixing sleeve 11 are screwed through the second adjusting through hole and can be displaced relative to the fixing sleeve 11, so that the user can sensibly move the adjusting member 5 to the required position. Used to control the position of the flow, it is easy to grasp the lock situation.

The safety control mechanism 6 is disposed in the first slot 63a disposed on the adjusting member 5, and the gun body 1 is provided with a friction hole 8c that cooperates with a portion of the adjusting member 5, the safety control mechanism 6 One end acts on the inner wall of the friction hole 8c (see Fig. 17) to cause an obstruction movement between the two contact surfaces, and the contact surface of one end of the safety control mechanism in contact with the inner wall of the friction hole is a circle Face, smooth adjustment, easy, safe and reliable, prevent card rotation, effectively avoid the free movement of the adjustment member 5, prevent the adjustment member 5 from accidentally retreating, improve the construction quality and avoid leakage or waste of the foaming agent Elephant.

Referring to FIG. 17, the inner wall of the friction hole 8c on the gun body 1 in contact with the safety control mechanism 6 is at least partially formed into a ring gear shape, a ring-shaped porous structure, a ring-shaped concave groove, a ring-shaped rough surface or a ring-shaped thread. The groove and the ring gear can also be regarded as a circular concave groove, which has better effect and higher safety factor.

Further, the ring gear, the annular porous, the annular concave groove, the annular rough surface or the annular thread groove are parallel to the axial direction of the adjusting member 5 or inclined to the axial direction of the adjusting member 5, and further, a single gear, a single The groove or the single rough surface has a rectangular, polygonal or curved cross section, which further improves the friction force and the clamping force, more effectively prevents the adjusting member 5 from freely rotating, prevents the adjusting member 5 from being accidentally retracted, and greatly improves the adjustment. Stability, when the adjusting member 5 is rotated, a rubbing feeling or a '嗒嗒' sound is generated, and at the same time, the adjusting member 5 generates a telescopic movement, so that the user feels the moving member 5 to the desired one for control The position of the flow, the structure adjustment is easy and stable, safe and reliable, feels good, easy to grasp the adjustment situation, does not feel light, does not feel light, easy to adjust, accurate, improve construction quality and avoid waste of foaming agent, when locking is required , turning the adjustment member 5, there will be a feeling of friction or a '嗒嗒' sound, which will feel when rotated The locking member 5 is locked with the limiting member 35 and the valve core 32. Due to the action of the spring 522, the ball 52 is brought into contact with the adjusting member 5 to generate a topping force, which further improves the friction force and the engaging force, thereby effectively avoiding the adjustment. The free movement phenomenon of the piece 5 also effectively avoids the collision or the rubbing, and the rotation of the adjusting member 5 is easily caused, so that the adjusting member 5 stably locks the limiting member 35 and the valve core 32, thereby improving the stability of the locking. High in nature, avoiding the risk of foaming of the foam sealant by the child or inadvertently pulling the switch 4, effectively preventing leakage or accidental spraying or burning or explosion or solidification. Example 10

Referring to FIG. 18, the embodiment is similar to FIG. 16. A fixing sleeve 11 is disposed between the adjusting member 5 and the gun body 1. The fixing sleeve 11 is connected to the gun body 1 on the fixing sleeve 11. The second adjusting through hole 8b (refer to FIG. 2) is disposed, and the adjusting member 5 is screwed with the fixing sleeve 11 through the second adjusting through hole 8b and can be relatively displaced with the fixing sleeve 11 so that the user feels The adjustment member 5 is moved to the position required to control the flow, and the locking condition is easily grasped.

The difference is that the safety control mechanism 6 is disposed in the third slot 63c (not labeled in the figure, refer to FIG. 10) disposed on the gun body 1, and one end of the safety control mechanism 6 acts on the adjusting member. 5, make A blocking movement is generated between the two contact surfaces, and a contact surface of one end of the safety control mechanism in contact with the adjusting member 5 is a circular surface, and the safety control mechanism 6 includes a damping member 60 and a spring 61 disposed in the third groove For example, the damper member may be a cylinder or a bullet shape or an ellipsoidal shape or a T-shape with a semicircular head. Referring to Fig. 18, a part can be inserted in the spring 61 to adjust the smoothness and prevent the card from rotating, thereby effectively avoiding The adjusting member 5 is free to move, preventing the adjusting member 5 from being accidentally retracted, improving the construction quality and avoiding leakage or waste of the foaming agent. Further, the surface of the adjusting member 5 in contact with the safety control mechanism 6 has at least The part is formed into a ring-shaped gear, a ring-shaped porous structure, a ring-shaped concave-convex groove, a ring-shaped rough surface or a ring-shaped thread groove, and the use and safety effect are better. The beneficial effects of the embodiment are the same as those of the first embodiment, and are not described herein again. Example 11:

Referring to FIG. 19, FIG. 20 and FIG. 21, this embodiment is similar to the embodiment 1, and the difference is that the fixing sleeve 11 and the adjusting member 5 are obliquely disposed at the rear end portion of the gun body 1, that is, the adjusting member 5 The valve body 32 is axially inclined. The adjusting member 5 is connected with the fixing sleeve 11 by screws and can be telescopically moved relative to the fixing sleeve 11. The manual end of the adjusting member 5 is upturned, the hand feeling is better when adjusting, the adjustment is convenient, and the style is beautiful. The angle N between the center line of the fixing sleeve 11 and the adjusting member 5 and the center line of the valve core 32 is between 2 degrees and 65 degrees, and the feeling is good, and the adjustment is easy to grasp, and the use effect is good. Further, the adjustment The angle N between the piece 5 and the center line of the valve core 32 is preferably between 10 degrees and 50 degrees. The structure adjustment is easy and stable, the hand feel is good, the adjustment condition is easy to grasp, safe and reliable, and the light is not felt when rotating. Accurate adjustment, simple structure and easy to use. Also included is a barrel 10, the barrel 10 and the gun body 1 are connected to form a liquid chamber 34, the valve core 32 extends out of the liquid outlet chamber 34, and the valve core 32 extending out of the liquid outlet chamber 34 is connected to the limiting member. 35. The return spring 33 is disposed outside the liquid outlet chamber 34. A second fixing sleeve 13 is disposed between the valve core 32 and the fixing sleeve 11, and the return spring 33-end acts on the limiting member 35. The other end of the return spring 33 acts on the second fixing sleeve 13 to keep the constant force of the return spring 33 constant. The hand pull switch 4 is easy and comfortable during construction, and the sealing of the liquid outlet 31 is stable. There may be many changes in the setting of the return spring 33. Alternatively, the return spring 33 may be sleeved on the valve core 32 and located in the liquid discharge chamber 34, one end of which acts on the valve core 32, and One end acts on the gun body 1. The security control mechanism of this embodiment is the same as that of Embodiment 1, and details are not described herein again. Example 12

Referring to FIG. 22, a fixing sleeve 11 is disposed between the adjusting member 5 and the gun body 1. The fixing sleeve 11 is connected to the gun body 1, and a second adjusting through hole 8b is disposed on the fixing sleeve 11, The adjusting member 5 and the fixing sleeve 11 are screwed through the second adjusting through hole and can be displaced relative to the fixing sleeve 11, so that the user can sensibly move the adjusting member 5 to the position required for controlling the flow, which is easy A fixing cap 12 is connected to the fixing sleeve 11 , and a third adjusting through hole 8 d is disposed on the fixing cap 12 , and the third adjusting through hole is cooperatively sleeved on the adjusting member 5 . The safety control mechanism 6 is disposed in the first slot disposed on the adjusting member 5, and one end of the safety control mechanism 6 is in contact with at least a portion of the inner wall of the third adjusting through hole 8d, so that two An obstruction motion is generated between the contact surfaces, and a contact surface of one end of the safety control mechanism that is in contact with the inner wall of the third adjustment through hole 8b is a round surface, which is smoothed to prevent card rotation, and the adjustment member is effectively avoided. 5 free activities Phenomenon, prevent the adjustment member 5 from accidentally retreating, improve the construction quality and avoid leakage or waste of the foaming agent.

Further, the inner wall of the third adjusting through hole in contact with the safety control mechanism is at least partially formed into a ring gear shape, an annular porous structure, an annular concave groove, an annular rough surface or an annular thread groove, which is more effective in preventing the inner wall. The safety control mechanism for the accidental retreat of the adjusting member 5 is easy, stable, safe and reliable, effectively avoiding the free movement of the adjusting member 5, preventing the adjusting member 5 from accidentally retreating, adjusting the movement obviously, and easily grasping the adjustment situation. , high stability of adjustment and locking, improve construction quality and avoid leakage or waste of foaming agent. An adjusting cap is provided on the adjusting member 5. The adjusting member 5 and the adjusting cap 53 are connected by a fixing screw 54'', so that the adjusting cap 53 can be made into a large structure for easy rotation by hand.

Further, a maximum flow control mechanism for limiting the maximum flow rate of the foaming agent is disposed between the fixing sleeve 11 and the fixing cap 12 on the adjusting member 5, and further, the maximum flow control mechanism is the control adjusting member 5 and/or The mechanism by which the spool 32 moves the maximum distance.

The maximum flow control mechanism has several advantages: 1. When the adjusting member 5 moves outward (reverses) by a certain distance, referring to FIG. 22, the retaining spring 71 is blocked by the fixing cap 12, which limits the maximum moving distance of the adjusting member 5. Therefore, the moving distance of the valve core can be controlled, that is, the maximum flow rate of the foaming agent is controlled, the excessive spraying phenomenon of the foaming agent is effectively controlled, the foaming agent is wasted, the construction quality is affected, and the maximum of the control spool is simultaneously controlled. The moving distance avoids the leakage of the valve core 32 from the sealing ring 4 provided between the gun body 1 and the gun body 1, and avoids the danger of burning or explosion. 2. The safety control mechanism must act on the adjustment. Between the piece and the other parts of the foaming tool, it is easy to fall off, when the adjusting member 5 moves outward When the distance is seen, referring to Fig. 22, the retaining spring 71 is blocked by the fixing cap 12, thereby limiting the maximum moving distance of the adjusting member 5, that is, the maximum flow control mechanism keeps the safety control mechanism in the adjusting member and other components of the foaming tool. Between the two, when the adjusting member 5 is moved outward by a certain distance, referring to FIG. 22, the retaining spring 71 is blocked by the fixing cap 12, thereby limiting the maximum moving distance of the adjusting member 5. , effectively preventing the adjustment member 5 from falling off. Example 13

Referring to FIG. 23, the embodiment is similar to FIG. 22, and a fixing sleeve 11 is disposed between the adjusting member 5 and the gun body 1. The fixing sleeve 11 is connected with the gun body 1, and the fixing sleeve 11 is provided with a first Adjusting the through hole, the adjusting member 5 and the fixing sleeve 11 are screwed through the second adjusting through hole and can be displaced relative to the fixing sleeve 11, so that the user can sensibly move the adjusting member 5 to the required position. To control the position of the flow, it is easy to grasp the locking condition, and the fixing sleeve 11 is connected with a fixing cap 12, and the fixing cap 12 is provided with a third adjusting through hole 8d, and the third adjusting through hole is cooperatively sleeved On the adjustment member 5,

The difference from FIG. 22 is that the safety control mechanism 6 is disposed in the fourth groove 63d provided on the fixing cap 12, and one end of the safety control mechanism 6 acts on the adjusting member 5 to make two contact surfaces An obstruction motion is generated, and a contact surface of one end of the safety control mechanism that is in contact with the adjusting member 5 is a round surface, and the adjustment is smooth, preventing the card from rotating, effectively preventing the free movement of the adjusting member 5, and preventing The adjusting member 5 has an unexpected retreat, which improves the construction quality and avoids leakage or waste of the foaming agent. Further, the surface of the adjusting member that is in contact with the safety control mechanism is at least partially formed into a ring gear shape, a circular porous structure, The annular concave groove, the annular rough surface or the annular thread groove, the structure adjustment is easy, stable and safe and reliable, effectively avoiding the free movement of the adjusting member 5, preventing the adjusting member 5 from accidentally retreating, adjusting the movement obviously, and easily grasping and adjusting In case of high stability of adjustment and locking, improve construction quality and avoid leakage or waste of foaming agent.

While the invention has been described in detail hereinabove in the embodiments of the present invention, it will be understood that It is also possible to make various changes or modifications to the foregoing embodiments within the scope of the invention, and such variations and modifications are intended to be within the scope of the invention.

Claims

1. A foaming tool having a safety control mechanism, comprising a gun body, a valve core, a switch, a return spring for resetting the valve core, and an adjusting member, wherein: a setting is provided for preventing the adjusting member from accidentally retreating Safety control mechanism.

2. A foaming tool having a safety control mechanism according to claim 1 wherein said safety control mechanism is disposed between said adjustment member and other components of a foaming tool that cooperate to produce a relative displacement. One end of the safety control mechanism acts on the adjustment member and the other end acts on other components of the foaming tool that cooperate with the adjustment member to produce a relative displacement.

3. A foaming tool having a safety control mechanism according to claim 2, wherein said adjustment member and said other member of the foaming tool that cooperates to produce a relative displacement are threaded.

A foaming tool having a safety control mechanism according to claim 1, wherein said safety control mechanism is a mechanism for utilizing a frictional force to cause an obstructing movement of the adjusting member.

5. A foaming tool having a safety control mechanism according to any one of claims 1 to 4, wherein the safety control mechanism comprises an elastic member or the safety control mechanism comprises an elastic member and a damping member, the damping At least a portion of the member is disposed at one end of the elastic member.

A foaming tool having a safety control mechanism according to claim 5, wherein said damper member provided at one end of said elastic member is at least partially rounded.

7. A foaming tool with a safety control mechanism according to claim 5, characterized in that the elastic member is a spring or a steel sheet, and the spring is preferably a coil spring, a leaf spring or a compression spring.

A foaming tool having a safety control mechanism according to claim 5, wherein said damping member is a ball.

9. A foaming tool having a safety control mechanism according to claim 5, wherein said elastic member is a spring and said damping member is a ball.

10. A foaming tool having a safety control mechanism according to any one of claims 1-9, wherein said adjustment member or other member of the foaming tool with which it produces a relative displacement is provided with a groove, said A safety control mechanism is disposed in the slot.

A foaming tool having a safety control mechanism according to claim 1, wherein said adjusting member is located at a rear end portion of said gun body.

A foaming tool having a safety control mechanism according to claim 1, wherein said adjusting member is disposed axially along said spool or obliquely inclined with said spool.

A foaming tool having a safety control mechanism according to claim 1, wherein an adjustment cap is provided on said adjustment member.

14. A foaming tool having a safety control mechanism according to any one of claims 1-13, 15. The foaming tool with a safety control mechanism according to claim 14, wherein the safety control mechanism is disposed between the adjusting member and the gun body, and the first adjusting through hole is disposed on the gun body. The adjusting member is screwed to the gun body through the first adjusting through hole and can be displaced relative to the gun body.

16. The foaming tool with a safety control mechanism according to claim 15, wherein said inner wall of said first regulating through hole in contact with said safety control mechanism is at least partially formed into a ring-shaped gear shape, a circular porous structure, Annular groove, annular rough surface or circular thread groove,

The foaming tool with a safety control mechanism according to any one of claims 1 to 13, characterized in that a fixing sleeve is arranged between the adjusting member and the gun body, and the fixing sleeve is opposite to the gun body. Connecting, a second adjusting through hole is disposed on the fixing sleeve, and the adjusting member is screwed to the fixing sleeve through the second adjusting through hole and can be relatively displaced from the fixing sleeve,

The safety control mechanism is disposed on the adjusting member, and one end of the safety control mechanism acts on an inner wall of the second adjusting through hole provided on the fixing sleeve,

Or the safety control mechanism is disposed on the fixing sleeve, and one end of the safety control mechanism acts on the adjusting member,

18. The foaming tool according to claim 17, wherein the inner wall of said second regulating through hole in contact with said safety control mechanism is at least partially formed into a ring-shaped gear-shaped, annular porous structure. , annular concave groove, annular rough surface or circular thread groove,

Or the inner wall of the friction hole on the gun body in contact with the safety control mechanism is at least partially formed into a ring gear shape, an annular porous structure, an annular concave groove, an annular rough surface or an annular thread groove. A fixing sleeve is disposed between the adjusting member and the gun body, the fixing sleeve is connected to the gun body, and a second adjusting through hole is disposed on the fixing sleeve, the adjusting member and the fixing sleeve The second adjusting through hole is screwed and can be displaced relative to the fixing sleeve, and a fixing cap is connected to the fixing sleeve, and a third adjusting through hole is disposed on the fixing cap, and the fixing cap passes through the The third adjustment through hole is sleeved on the adjusting member,

20. The foaming tool with a safety control mechanism according to claim 19, wherein said inner wall of said third regulating through hole in contact with said safety control mechanism is at least partially formed into a ring-shaped gear-shaped, annular porous structure. , annular concave groove, annular rough surface or circular thread groove,

A foaming tool having a safety control mechanism according to claim 16 or 18 or 20, characterized in that said ring gear, annular porous, annular concave-convex groove, annular rough surface or annular thread groove and axis of said adjusting member It is parallel or inclined to the axial direction of the adjusting member.

22. A foaming tool with a safety control mechanism according to claim 16 or 18 or 20 or 21, characterized by a single gear of the ring gear, annular porous, annular concave groove, annular rough surface or annular thread groove, single A hole, a single groove, or a single rough face is rectangular, polygonal, or curved.

A foaming tool having a safety control mechanism according to claim 16 or 18 or 20 or 21 or 22, wherein the safety control mechanism is an elastic member or the safety control mechanism is an elastic member and a damping member. The damping member is disposed at one end of the elastic member, the damping member is a ball, and the depth of the ball into the ring gear, the annular porous, the annular concave groove, the annular rough surface or the annular thread groove is the same as The diameter ratio of the beads is less than 1/3, preferably less than 1/4, more preferably less than 1/5.

A foaming tool having a safety control mechanism according to any one of claims 1 to 23, characterized in that the force of one end of the safety control mechanism against the inner wall or surface contacting the contact is 100 g to Between 1000 grams, preferably between 200 grams and 700 grams, more preferably between 250 grams and 550 grams.

A foaming tool having a safety control mechanism according to any one of claims 15 or 17 or 19, wherein said adjusting member is provided with a first groove, and said safety control mechanism is disposed at said first a second slot is disposed in the slot, or the fixing sleeve is disposed, the safety control mechanism is disposed in the second slot, or a third slot is disposed on the gun body, and the safety control mechanism is disposed in the slot In the three slots, or the solid A foaming tool having a safety control mechanism according to any one of claims 15 or 17 or 19, wherein contact of one end of said safety control mechanism in contact with an inner wall of said first regulating through hole a surface having a rounded surface, or a contact surface of one end of the safety control mechanism in contact with the adjusting member is a circular surface, or one end of the safety control mechanism in contact with an inner wall of the second regulating through hole The contact surface is a round surface, or the contact surface of one end of the safety control mechanism in contact with the inner wall of the friction hole is a circular surface, or the safety control mechanism is in contact with the inner wall of the third adjustment through hole The contact surface at one end is a round surface.

27. A foaming tool having a safety control mechanism according to any of claims 1-26, characterized in that said adjustment member is provided with a maximum flow control mechanism for controlling the maximum flow rate.

28. A foaming tool having a safety control mechanism according to claim 27, wherein said maximum flow control mechanism is a mechanism for controlling the maximum moving distance of the adjusting member and/or the spool.

29. A foaming tool having a safety control mechanism according to claim 27 or 28, wherein said maximum flow control mechanism is disposed at an inner end of said adjustment member, and said inner end portion of said adjustment member is said adjustment The piece is located at one end of the gun body.

30. A foaming tool having a safety control mechanism according to claim 27 or 28, wherein said maximum flow control mechanism is disposed on said adjustment member between said fixed sleeve and said fixed cap.

A foaming tool having a safety control mechanism according to any one of claims 27 to 30, wherein the maximum flow control mechanism is a snap spring or a threaded fixing member.