Pipe end clamping device and pipe clamp holder
By designing a pipe end clamping device with limiting glue ring and clip structure in the pipe joint assembly machine, the problems of pipe clamping and slipping in the prior art are solved, and a more stable and safe joint assembly process is achieved.
Patent Information
- Application Number
- CN202421281080.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-05
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-06-05
AI Technical Summary
The clamping device of existing pipe joint assembly machines is prone to cause pipe clamping and slipping, and cannot effectively prevent accidental collision and offset and unstable clamping.
A pipe end clamping device is designed, adopting a limiting rubber ring and clip structure. The limiting rubber ring pre-limits the end of the pipe. The clip is driven by the hinge arm and push rod to squeeze the limiting rubber. The ring is used to clamp the pipe to avoid direct application of strong force.
It effectively prevents the pipe from being clamped and slipped, improves the stability and safety of joint assembly, avoids accidental collision and offset, and reduces clamping force through the elastic deformation of the limiting rubber ring.
Smart Images
Figure CN222494027U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an end clamping device of a pipe and a pipe clamper, belonging to the technical field of pipe processing equipment. Background Art
[0002] The connection between different pipes needs to be achieved through joints, and the joint assembly machine is an operating device used to assemble joints for the ends of pipes. In order to prevent the pipes from being pushed and slipped when inserted into the joints, the pipes are generally fixed with the help of the clamping device of the assembly machine. In the existing assembly machines, some clamping devices are prone to clamping the pipes, so the applicant designed a pipe end clamping device and a corresponding pipe clamp, and filed the following application. Utility Model Content
[0003] In view of the above-mentioned deficiencies in the prior art, the utility model provides an end clamping device for a pipe.
[0004] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a pipe end clamping device, including a base formed with a pipe groove, the pipe is placed on the base through the pipe groove, a limiting rubber ring is embedded in the front end of the base, one end of the pipe used for assembling the joint is located in the limiting rubber ring, and the base is slidably provided with clamping pieces on both sides of the limiting rubber ring, and the clamping pieces can be pushed by the hinge arm of the hinge platform arranged on the side of the base to squeeze the limiting rubber ring, so that the limiting rubber ring and the pipe are pressed against each other.
[0005] Preferably, the clip is slidably disposed on a clip seat provided on the base, and the clip seat has a push rod which can push and pull the clip away from or close to the limiting rubber ring.
[0006] Preferably, the clip seat comprises an end cover and a seat body which are locked with each other and form a sliding cavity, wherein the sliding cavity has a guide rod parallel to the push rod, and the clip passes out of or into the sliding cavity with the help of the push rod and the guide rod.
[0007] Preferably, a stop shaft and a stop plate are formed at the end of the push rod, and one end of the hinge arm is clamped with the push rod through the stop shaft and the stop plate.
[0008] Preferably, a U-shaped groove is formed at one end of the hinge arm for engaging with the push rod, and the push rod passes through the U-shaped groove, so that its blocking shaft and blocking plate are respectively located on both sides of the U-shaped groove.
[0009] Preferably, a telescopic member is provided between the other end of the hinge arm and the base, and the telescopic member can drive the hinge arm to swing.
[0010] Preferably, the hinge arm has a retractable member, and the other end thereof is connected to the hinge platform by a return spring.
[0011] Preferably, the hinge arm is a lever structure, one end of which is engaged with the push rod to serve as a resistance arm and is shorter than the other end having a telescopic member to serve as a power arm.
[0012] The utility model also provides a pipe clamp, which includes the end clamping device of the above-mentioned pipe, an upper clamping platform with a clamping groove is lifted and arranged above the base, and when the upper clamping platform is clamped with the base, the clamping groove and the pipe groove are jointly enclosed to form a limiting channel to prevent the pipe from shaking.
[0013] The utility model has at least the following benefits:
[0014] 1. The limiting rubber ring can limit the end of the pipe in advance to prevent accidental contact and deviation;
[0015] 2. When the pipe is clamped, the limit rubber ring has both anti-pinching and anti-slip functions;
[0016] 3. The hinge arm adopts a labor-saving lever structure, which can facilitate the telescopic parts to drive the clamps to clamp the pipes;
[0017] 4. The upper clamping platform cooperates with the base to limit the rear section of the pipe to prevent it from shaking. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a structural schematic diagram of the utility model.
[0019] Figure 2 yes Figure 1 A magnified schematic diagram of center A.
[0020] Figure 3 This is a schematic diagram of the interior of the clip holder.
[0021] Figure 4 It is a schematic diagram of the cooperation between the push rod and the hinge arm.
[0022] In the figure, 1-upper clamping platform; 101-lifting cylinder; 2-base; 3-limiting rubber ring; 4-clamping piece; 5-clamping piece seat; 501-end cover; 502-seat body; 503-guide rod; 6-push rod; 601-blocking shaft; 602-blocking piece; 7-reinforcing platform; 8-hinge arm; 801-U-shaped groove; 802-telescopic part. DETAILED DESCRIPTION
[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0024] like Figure 1-Figure 4 As shown: a pipe clamp, including an end clamping device for a pipe, and an upper clamping platform 1, wherein the end clamping device for the pipe has a base 2 for forming a pipe groove, and the upper clamping platform 1 for forming a clamping groove is arranged above the base 2 through a lifting cylinder 101, and when the upper clamping platform 1 moves downward, its clamping groove and the pipe groove of the base 2 are jointly enclosed to form a limiting channel that matches the contour of the pipe, and most of the pipe itself is located in the limiting channel and is limited by it, except for the front end part used for assembly with the joint, to prevent shaking.
[0025] Furthermore, a limiting rubber ring 3 with a diameter slightly larger than the diameter of the pipe is embedded in the front end of the base 2. One end of the pipe used for assembling the joint is located in the limiting rubber ring 3. The clamping pieces 4 on both sides of the limiting rubber ring 3 can squeeze the limiting rubber ring 3 toward the center, causing the limiting rubber ring 3 to deform until it is tightly attached to the pipe. At this time, the clamping pieces 4 on both sides are equivalent to clamping claws, which indirectly clamp the pipe through the limiting rubber ring 3.
[0026] Specifically, the above-mentioned limiting rubber ring 3 also has convex points or convex edges formed on its inner wall. The existence of the convex points and convex edges can make up for the pipe diameter error that may exist when producing the same type of pipes, thereby improving the anti-slip effect of the limiting rubber ring 3.
[0027] Specifically, the clip 4 is installed in the clip seat 5 provided on the base 2. Figure 2-Figure 3 As shown, the end cover 501 and the seat body 502 of the clip seat 5 are embedded in the base 2, and the two are locked with each other to form a sliding cavity. The clip 4 is slidably installed in the sliding cavity through the guide rod 503, and is pushed and pulled by the push rod 6, so that it can pass through the sliding cavity to approach the above-mentioned limiting rubber ring 3.
[0028] Specifically, a hinge 7 is longitudinally fixed to the side of the base 2, and a hinge arm 8 hinged to the hinge 7 and connected to a return spring can correspondingly drive the push rod 6 to push and pull the clip 4 when swinging. Figure 2 , Figure 4 As shown, the hinge arm 8 is a lever structure, and a U-shaped groove 801 is formed at the shorter end thereof as a resistance arm. When the end of the push rod 6 passes through the U-shaped groove 801, a stop shaft 601 and a stop plate 602 are formed on both sides of the U-shaped groove 801 corresponding to the push rod 6. Under the restriction of the stop shaft 601 and the stop plate 602, the push rod 6 can be mutually engaged with the hinge arm 8; and the longer end of the hinge arm 8 as a power arm is supported by a telescopic member 802 which can be adjusted manually or electrically and is provided on the base 2. When the telescopic member 802 is extended, this end of the hinge arm 8 is pushed, and the clip 4 will be close to the limiting rubber ring 3 due to the drive of the push rod 6. Conversely, when the telescopic member 802 is retracted, the hinge arm 802 returns to its original position through the reset spring, and the clip 4 is driven away from the limiting rubber ring 3 by the push rod 6.
[0029] Working method: First, place the pipe on the pipe groove of the base, and let its end pass through the limiting rubber ring for pre-limiting; secondly, the upper clamping platform moves downward, and cooperates with the base to enclose and limit the rear section of the pipe; thirdly, the push rod, under the action of the hinge arm, pushes the clamping piece to move in the direction of the limiting rubber ring, and indirectly fixes the end of the pipe with the help of the deformation of the limiting rubber ring; then, the external mechanism assembles the joint to the end of the pipe; finally, each mechanism is reset in turn to remove the pipe from the base.
[0030] As mentioned above, in order to ensure the clamping degree of the pipe, the existing design of the clamping claw (clamping device) will directly apply a large clamping force to the pipe. If this is done, the pipe may be clamped. Compared with this, this design chooses to install a limit rubber ring slightly larger than the pipe diameter on the base. The clamping force of the clamp acts on the limit rubber ring. The elastic deformation of the limit rubber ring is used to avoid the occurrence of pipe clamping as much as possible. At the same time, after the limit rubber ring is tightly attached to the outer wall of the pipe, there is a large damping feeling between the two. When the joint is inserted into the pipe, the pipe is not easily pushed and slipped, which further ensures the stability of the joint assembly.
[0031] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.
Claims
1. A pipe end clamping device, comprising a base (2) formed with a pipe groove, the pipe is placed on the base (2) through the pipe groove, characterized in that: A limiting rubber ring (3) is embedded in the front end of the base (2), and one end of the pipe used for assembling the joint is located in the limiting rubber ring (3). The base (2) is slidably provided with clamping pieces (4) on both sides of the limiting rubber ring (3). The clamping pieces (4) can be pushed by a hinge arm (8) of a hinge platform (7) provided laterally on the base (2) to squeeze the limiting rubber ring (3), so that the limiting rubber ring (3) and the pipe are pressed against each other.
2. The end clamping device of a pipe as claimed in claim 1, characterized in that: The clip (4) is slidably mounted on a clip seat (5) provided on the base (2), and the clip seat (5) has a push rod (6) which can push or pull the clip (4) away from or close to the limiting rubber ring (3).
3. The end clamping device of a pipe as claimed in claim 2, characterized in that: The clip seat (5) comprises an end cover (501) and a seat body (502) which are locked with each other and form a sliding cavity, wherein the sliding cavity has a guide rod (503) parallel to the push rod (6), and the clip (4) passes out of or into the sliding cavity with the help of the push rod (6) and the guide rod (503).
4. The end clamping device of a pipe as claimed in claim 2, characterized in that: A stop shaft (601) and a stop plate (602) are formed at the end of the push rod (6), and one end of the hinge arm (8) is clamped with the push rod (6) by the stop shaft (601) and the stop plate (602).
5. The end clamping device of a pipe as claimed in claim 4, characterized in that: A U-shaped groove (801) is formed at one end of the hinge arm (8) for clamping with the push rod (6); the push rod (6) passes through the U-shaped groove (801), and its own blocking shaft (601) and blocking sheet (602) are respectively located on both sides of the U-shaped groove (801).
6. The end clamping device of a pipe as claimed in claim 4, characterized in that: A telescopic member (802) is provided between the other end of the hinge arm (8) and the base (2), and the telescopic member (802) can drive the hinge arm (8) to swing.
7. The end clamping device of a pipe as claimed in claim 6, characterized in that: The hinge arm (8) has a telescopic member (802), and the other end thereof is connected to the hinge platform (7) by a return spring.
8. The end clamping device of a pipe as claimed in claim 6, characterized in that: The hinge arm (8) is a lever structure, one end of which is connected to the push rod (6) to serve as a resistance arm and is shorter than the other end of the hinge arm having a telescopic member (802) to serve as a power arm.
9. A pipe clamp, characterized in that: The invention comprises an end clamping device for a pipe as claimed in any one of claims 1 to 8, wherein an upper clamping platform (1) having a clamping groove is lifted and lowered above a base (2); when the upper clamping platform (1) and the base (2) are clamped together, the clamping groove and the pipe groove jointly enclose a limiting channel to prevent the pipe from shaking.