TWM508371U - Separation prevention device for gripping pliers of tube expander - Google Patents

Description

Pipe clamp of pipe expander to prevent separation device

The present invention is applied to the field of pipe expanders, and particularly relates to an improved structure of a pipe expander that blocks a pipe clamp from a pipe expander by a simple device, reduces accidents, and maintains work stability and safety.

Pipe expander is an indispensable tool for pipe laying. Its purpose is to expand the opening area of pipe fittings to facilitate quick connection with other pipe fittings. Therefore, the scope of application of the expander is very wide, and various projects, such as construction engineering, hydropower engineering and hydraulic engineering, etc., are indispensable for the existence of the expander.

The structure of the conventional pipe expander mainly includes a pipe expander body and a pinch clamp. When in use, the clamp pipe clamp is opened, and then the pipe piece to be expanded is placed in the pipe expansion hole of the appropriate size of the clamp pipe clamp, and the clamp pipe clamp is closed to complete the pipe fitting, and then the pipe clamp is fixed. The clamp is placed in the accommodating groove below the body to be fixed and then expanded.

When performing the pipe expansion work, since the pressure is large, it is necessary to fix the position of the pinch clamp in the body. At this time, it is usually locked by the fastening device provided on the side of the body, and then the pipe is expanded. jobs.

However, the problem is that the body and the pincers belong to two separate objects. Usually it is detached from the package and will only be combined when it is used. Therefore, when the user places the body in an inclined position and does not securely lock the clamp, the clamp may slide out and fall by gravity, and the clamp may be damaged if it hits the human body. Will cause actual damage.

Or, when the user expands the tube, because the position of the pinch clamp must be adjusted, the female pliers may be pulled out during the operation due to improper operation, and in addition to having to reassemble the positioning, it is more likely to be caused by the impact. Physical injury.

Therefore, it is necessary to further maintain the bonding stability of the body and the pincers to avoid the aforementioned problems.

Obviously, there are still problems in the conventional expander that need to be solved, rather than a good design.

The creator of the case is missing according to the positioning structure of the clamp pipe clamp of the conventional pipe expander, that is, the improvement is carried out, and the research and innovation are actively carried out. After long-term research and development, the pinch clamp prevention separation device of the pipe expander can be completed. .

The main purpose of the present invention is to provide a pipe clamp anti-separation device for a pipe expander, which can effectively prevent the separation of the two when the pinch clamp passes through the pipe expander by the positioning method of the lock unit, thereby maintaining the stability of the work and Safety, further enhance the quality of the expansion work.

Another object of the present invention is to provide a pliers preventing separation device for a pipe expander, which is simple in structure, low in cost, simple in operation, and easy to maintain.

The clip-clamp preventing separation device of the pipe expander of the present invention includes a pipe expander body, and a receiving groove is disposed under the body, and a pinching plier is disposed in the receiving groove, and the pincer is set The pipe expansion hole is used for clamping the pipe member, and the body is disposed beside the receiving groove A fastening device is provided for locking the crimping pliers, the body being provided with a punch for expanding the tubular member in the crimping pliers.

The creation is because the clamp pipe clamp passes through the accommodating groove, and in order to prevent the clamp pipe clamp from accidentally moving out of the body, a locking unit is disposed at the tail of the clamp pipe clamp, and the lock unit protrudes from the clamp pipe. The surface of the pliers and the locking unit is telescoped on the surface of the pliers.

The locking unit usually protrudes from the surface of the clamping pliers. When required for work, the user first needs to press the locking unit to pass the clamping pliers through the receiving groove. When the clip clamp tail portion leaves the accommodating groove, the latching unit can be re-expanded to the surface of the pincer tongs, so that when the pin clamp is moved out of the accommodating groove, the latching unit is blocked by the locking unit, so that the clip is blocked. The pipe wrench cannot be separated by the body itself.

When the pipe expansion work is completed, the user presses the locking unit, and simultaneously pushes the pinch clamp to move the depressed locking unit into the receiving groove, thereby performing the body and the pipe clamp Separate the job.

The locking unit has a spring built therein, and the spring usually pushes the locking unit to protrude from the surface of the clamping pliers. When the locking unit is depressed, the clamping pliers can pass through the receiving groove, and the spring is relaxed when the locking unit is depressed. The locking unit can be automatically reset to the protruding position.

In conjunction with the arrangement of the spring, the end surface of the locking unit is provided with a tapered surface, and the tapered surface is directional toward the tail of the clamping clamp. When the clamping clamp is pushed into the receiving groove, the tapered surface receives the receiving groove. The edge is blocked and stressed, and the direction of the force is changed to automatically press the locking unit to complete the movement of the pinch clamp through the receiving groove. When the clamp pipe clamp passes through the accommodating groove, since the tapered surface faces away from the accommodating groove without direct contact, when the clamp pipe clamp is moved in the reverse direction, the locking unit can still block the clamp clamp from moving out. The function of the receiving slot.

A locking unit is arranged between the locking unit and the clamping tube clamp. When the locking unit is pressed down, the locking unit is fixed in the pressed position by the locking unit, and the buckle unit is to be relaxed. The locking unit is automatically returned to the projecting position by the spring.

1‧‧‧ Ontology

11‧‧‧ accommodating slots

12‧‧‧ fastening device

13‧‧‧reversal

2‧‧‧Pliers

21‧‧‧Expanding holes

3‧‧‧ Pipe fittings

4‧‧‧Locking unit

41‧‧‧ Spring

42‧‧‧ Cone

43‧‧‧Snap unit

Fig. 1 is an exploded view of the composition of the pinching pliers preventing separation device of the creating pipe expander; Fig. 2 is a schematic view showing the composition of the pinching pliers preventing separating device of the pipe expanding device; Fig. 3 is the expanded pipe The clamp clamp of the device prevents the action of the separation device before operation; the fourth figure shows the action of the clamp clamp preventing separation device in the operation of the expander; the fifth figure shows the clamp clamp prevention separation device of the expander Schematic diagram of the operation completion; and Fig. 6 is a schematic diagram of the pinching forceps of the pipe expander preventing the separation device from moving out; FIG. 7A is the pinch clamp of the pipe expander preventing the separation of the buckle unit of the separating device An enlarged view of a portion of the structure in which the locking unit is reset; and FIG. 7B is an enlarged view of a portion of the structure of the pipe clamp of the pipe expander that prevents the locking unit of the separating device from being pressed and fixed by the snap unit.

Referring to FIG. 1 to FIG. 5, the clipper 2 of the expander of the present invention is a separation preventing device, and includes a expander body 1 having a receiving groove 11 under the body 1. A pinch clamp 2 is disposed in the accommodating groove 11 , and the pinch clamp 2 is provided with a pipe expansion hole 21 for clamping the pipe member. The body 1 is disposed on the side of the accommodating groove 11 Solid device 12, The fastening device 12 is used to lock the clamp pliers 2, and the body 1 is provided with a punch 13 for expanding the tubular member in the clamp pliers 2.

After the pinch clamp 2 passes through the accommodating groove 11, in order to prevent the pincer 2 from accidentally moving out of the body 1 and falling, a locking unit 4 is disposed at the tail of the pincer 2, and the locking unit 4 is protruded. On the surface of the pincer 2, the locking unit 4 is stretched and contracted on the surface of the pincer 2.

Therefore, the latching unit 4 protrudes from the surface of the pincer 2 to block the pincer 2 from entering and leaving the receiving slot 11. When the work is required, the user first needs to press the locking unit 4 to make the pincers 2 smaller than the receiving groove 11 , so that the pinching pliers 2 passes through the receiving groove 11 . When the rear end of the pinch clamp 2 is separated from the accommodating groove 11, the latching unit 4 can be retracted to protrude from the surface of the pincer 2, so that the pincer 2 is subjected to the latch when it is moved out of the accommodating slot 11 The unit 4 is blocked so that the pinch clamp 2 cannot be separated by the body 1 by itself. Therefore, the user can safely operate the position of the pincers 2 to perform pipe expansion of the pipe of different sizes.

Please cooperate with the figure 6 to ensure that when the pipe expansion work is completed, the user presses the lock unit 4, and simultaneously pushes the pinch clamp 2 to move, so that the depressed lock unit 4 enters the accommodating groove 11. The separation of the body 1 from the pincers 2 can be performed.

The locking unit 4 can be a simple manual operation, but in fact, the locking unit 4 has a spring 41 embedded therein, and the spring 41 is usually pushed up to protrude from the surface of the clamping jaw 2 when the locking unit 4 is pressed. The pinch clamp 2 can be passed through the accommodating groove 11 when it is lowered, and the locking unit 4 can be automatically returned to the protruding position by the spring 41 when it is relaxed.

In conjunction with the arrangement of the spring 41, the end surface of the locking unit 4 is provided with a tapered surface 42 which is directional toward the tail of the clamp pliers 2. By the cone 42 can be changed In the direction of the urging direction, when the pincer 2 is pushed into the accommodating groove 11, the tapered surface 42 is blocked by the edge of the accommodating groove 11 and is continuously applied to the pincer 2 The tapered surface 42 changes the direction of the force to automatically press the locking unit 4 to complete the movement of the pincer 2 through the receiving groove 11. When the pinch clamp 2 passes through the accommodating groove 11, since the tapered surface 42 faces away from the accommodating groove 11 and does not directly contact, the locking unit 4 can still be played when the clamping tongs 2 are moved in the reverse direction. The function of removing the pincers 2 from the accommodating groove 11 is blocked.

Further, as shown in FIG. 7A and FIG. 7B, the latch unit 43 is disposed between the latch unit 4 and the pincer 2, and the latch unit 43 is used when the latch unit 4 is depressed. The locking unit 4 is fixed in the depressed position, and the locking unit 4 is automatically returned to the protruding position by the spring 41 after the buckle unit 43 is relaxed. The buckle unit 43 has a wide variety of functions, and the function of the buckle can be achieved, and it is not detailed here.

According to the above configuration, after the combination of the pinching pliers 2 and the main body 1, it is possible to prevent accidental separation or falling, maintain a good working state, and exert stability and safety, so that the pipe expanding work can be carried out smoothly. .

The detailed description above is a detailed description of one of the possible embodiments of the present invention, and the embodiment is not intended to limit the scope of the patents, and the equivalent implementations or modifications that are not included in the spirit of the present invention should be included in The patent scope of this case.

1‧‧‧ Ontology

11‧‧‧ accommodating slots

12‧‧‧ fastening device

13‧‧‧reversal

2‧‧‧Pliers

21‧‧‧Expanding holes

3‧‧‧ Pipe fittings

4‧‧‧Locking unit

42‧‧‧ Cone

Claims (4)

The pipe clamp of the pipe expander prevents the separating device, comprising a body, the body has a receiving groove under the body, and a pinching plier is disposed in the receiving groove, wherein the clamping pipe tail is provided with a locking unit The locking unit has a surface expansion and contraction on the surface of the clamping clamp. When the clamping tube is pushed into the receiving groove, the locking unit is pressed to pass the clamping tube through the receiving groove, and then the locking unit is restored. Stretching on the surface of the pincers, the pincers are blocked by the locking unit when sliding out of the receiving groove, so that the pinching pliers cannot be separated by the body by itself. The pinch clamp of the expander of claim 1 prevents the separating device, wherein the locking unit has a spring built therein, and the spring usually pushes the locking unit to protrude from the surface of the pincer when the locking unit is depressed. The pinch clamp can be passed through the accommodating groove, and the latching unit can be automatically returned to the protruding position by the spring when relaxed. The pliers of the expander of claim 2 prevents the separating device, wherein the end surface of the locking unit is provided with a tapered surface which is directional toward the tail of the clamping pliers, so that the clamping pliers is pushed into the When the groove is received, the tapered surface is blocked by the edge of the receiving groove, and the locking unit is automatically pressed down. When the clamping jaw passes through the receiving groove, the tapered surface faces away from the receiving groove. The direct contact causes the locking unit to function to block the clamp from moving out of the receiving groove. The pinch clamp of the expander of claim 2 prevents the separating device, wherein the latching unit and the pincer are mutually provided with a snap unit, and when the latching unit is depressed, the snap unit is The locking unit is fixed in the position after the pressing, and the locking unit is automatically returned to the protruding position by the spring after the buckle unit is relaxed.