Pneumatic pipe clamp

Abstract

The utility model discloses a pneumatic pipe clamp which comprises an annular fixing base, fixing screw holes are formed in the quartering positions of the annular fixing base, and four clamp fixing shafts are fixedly connected to the positions, among the four fixing screw holes, of the annular fixing base at equal intervals. Four clamp claws are rotationally connected to the sides, away from the pipe cutting box, of the two annular fixing bases through four clamp fixing shafts correspondingly, four linkage rods are arranged among the four clamp claws, and limiting rings are arranged at the ends, away from the annular fixing bases, of the four clamp fixing shafts. According to the pipeline clamping device, the annular fixing base and the four clamp claws are arranged and matched with the linkage rod and the driving air cylinder, the four clamp claws can be driven by the single air cylinder to rotate synchronously, then the clamping plate fixing base moves inwards to clamp a pipeline in the four directions, the pipeline clamping device can be suitable for production of pipelines with different pipe diameters, and the clamp does not need to be replaced.

Description

Technical Field

[0001] This utility model relates to the field of plastic pipe production technology, and in particular to a pneumatic pipe clamp. Background Technology

[0002] Plastic pipes refer to pipes made of plastic materials. Compared with traditional cast iron pipes, galvanized steel pipes, and cement pipes, plastic pipes have advantages such as energy and material saving, environmental protection, lightweight and high strength, corrosion resistance, smooth inner wall without scaling, easy construction and maintenance, and long service life. They are widely used in building water supply and drainage, urban and rural water supply and drainage, urban gas, power and fiber optic cable sheathing, industrial fluid transportation, agricultural irrigation, and other construction, municipal, industrial, and agricultural fields. Plastic pipes are favored by the pipeline engineering industry due to their light weight, hygiene and safety, low water flow resistance, energy saving, metal saving, improved living environment, long service life, and safety and convenience.

[0003] During the production of plastic pipes, after being cooled and shaped by vacuum cooling equipment and discharged, they need to be cut after reaching a certain length to facilitate subsequent packaging and warehousing. When the cutting equipment is used, the pipes need to be fixed with clamps to ensure the stability of the cut. The existing clamps are lifting seats driven by two cylinders to move up and down. The pipe is clamped by the closing of the lifting seat and the base. In order to prevent the pipe from deforming under pressure, the lifting seat and the base need to be cut with semi-circular grooves corresponding to the outer diameter of the pipe. Although the structure is simple and can meet the needs of fixing the pipe, one type of clamp can only meet the needs of clamping one type of pipe. Multiple types of clamps need to be prepared, which not only increases the workload of maintenance, but also requires the clamps to be replaced when the pipe production specifications are changed, which increases the replacement cost. There is room for further improvement. Utility Model Content

[0004] The purpose of this utility model is to solve at least one of the technical problems existing in the prior art, and to provide a pneumatic pipe clamp that solves the above-mentioned problem.

[0005] To achieve the above objectives, a pneumatic pipe clamp is provided, including an annular fixed base. Each of the four equal divisions of the annular fixed base has a fixing screw hole. Four clamp fixing shafts are equidistantly fixed to the annular fixed base at positions between the four fixing screw holes. Four clamping jaws are rotatably connected to the sides of two of the annular fixed bases away from the pipe cutting box via the four clamp fixing shafts. Four linkage rods are provided between the four clamping jaws. Limit rings are provided at the ends of the four clamp fixing shafts away from the annular fixed base. Clamping plate fixing seats are fixedly connected to the inner sides of the ends of the clamping jaws away from the clamp fixing shafts. Detachable clamping plates are fixedly connected to the sides of the clamping plate fixing seats away from the clamping jaws.

[0006] A cylinder mounting base is fixedly connected to one side of the annular mounting base. A drive cylinder is rotatably connected to the outer side of the cylinder mounting base. The output end of the drive cylinder is rotatably connected to the corresponding clamping jaw.

[0007] According to the pneumatic pipe clamp, the clamp claw includes a claw body, a force-applying end, a force-receiving end, a first screw, a second screw, and a rotating sleeve. The force-applying end is provided on the outer side of the end of the claw body away from the clamping plate fixing seat, and the force-receiving end is provided on the inner side of the end of the claw body away from the clamping plate fixing seat. The first screw is fixedly connected to the middle of the force-applying end, and the second screw is fixedly connected to the middle of the force-receiving end. A rotating sleeve is provided at a position corresponding to the clamp fixing shaft of the claw body, and the corresponding clamp fixing shaft passes through the rotating sleeve and is rotatably connected to the rotating sleeve.

[0008] According to the pneumatic pipe clamp, each of the four equal divisions of the limiting ring is fixedly connected to the annular fixing seat through a corresponding clamp fixing shaft.

[0009] According to the pneumatic tube clamp, the two ends of the plurality of linkage rods are respectively rotatably connected to the corresponding first screw and second screw.

[0010] According to the pneumatic pipe clamp, the output end of the drive cylinder is rotatably connected to the second screw of the corresponding clamp claw.

[0011] According to the pneumatic pipe clamp, the middle two ends of the plurality of clamp fixing seats are provided with fixing holes, and the outer edges of the two fixing holes are provided with limit steps.

[0012] According to the pneumatic pipe clamp, a plurality of the detachable clamps are fixedly connected to corresponding clamp fixing seats by screws passing through fixing holes.

[0013] According to the pneumatic pipe clamp, the linkage rod includes a threaded sleeve and two threaded rods. The two ends of the threaded sleeve are respectively threaded to the threaded rods. The threads of the two threaded rods are in opposite directions. The outer side of the threaded sleeve is hexagonal prism.

[0014] The above solution has at least one of the following beneficial effects:

[0015] 1. This utility model is equipped with an annular fixed seat and four clamping claws. With the help of a linkage rod and a drive cylinder, the four clamping claws can be rotated synchronously by the drive of a single cylinder. Then, the clamping plate fixed seat moves inward to clamp the pipe in four directions. It can be used for the production of pipes of different diameters without the need to change the clamps, thus enhancing the practicality of the device.

[0016] 2. The linkage rod of this utility model is provided with a hexagonal prism-shaped threaded sleeve and a threaded rod. The length of the linkage rod can be adjusted by a wrench, and the clamping angle can be finely adjusted, which facilitates subsequent debugging and enhances the practicality of the device.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0019] Figure 1 This is a three-dimensional structural diagram of the left side of a pneumatic tube clamp according to the present invention;

[0020] Figure 2 This is a three-dimensional structural diagram of the right side of a pneumatic tube clamp according to the present invention;

[0021] Figure 3 This is a front structural diagram of a pneumatic tube clamp according to the present invention;

[0022] Figure 4 This is a schematic diagram of the internal structure of a pneumatic tube clamp according to the present invention;

[0023] Legend:

[0024] 1. Annular fixed seat; 2. Fixed screw hole; 3. Fixture fixed shaft; 4. Fixture claw; 5. Linkage rod; 6. Limit ring; 7. Cylinder fixed seat; 8. Drive cylinder; 9. Clamping plate fixed seat; 10. Detachable clamping plate; 41. Claw body; 42. Force-applying end; 43. Force-receiving end; 44. First screw; 45. Second screw; 46. Rotating sleeve; 51. Threaded sleeve; 52. Threaded rod. Detailed Implementation

[0025] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0026] Reference Figure 1-4This utility model provides a pneumatic pipe clamp, including an annular fixed base 1. Each of the four equal divisions of the annular fixed base 1 has a fixing screw hole 2. Four clamp fixing shafts 3 are equidistantly fixed to the annular fixed base 1 at positions between the four fixing screw holes 2. Four clamping claws 4 are rotatably connected to the sides of two annular fixed bases 1 away from the pipe cutting box 1 via the four clamp fixing shafts 3. Four linkage rods 5 are provided between the four clamping claws 4, allowing them to rotate synchronously. Limiting rings 6 are provided at the ends of the four clamping shafts 3 away from the annular fixed base 1. Each of the four equal divisions of the limiting ring 6 is fixedly connected to the annular fixed base 1 via a corresponding clamp fixing shaft 3, used to limit the clamping claws 4. Multiple clamping claws 4... A clamping plate fixing seat 9 is fixedly connected to the inner side of the end away from the clamp fixing shaft 3. A detachable clamping plate 10 is fixedly connected to the side of the clamping plate fixing seat 9 away from the clamping claw 4. Fixing holes are opened at both ends of the middle part of the clamping plate fixing seat 9, and a limit step is provided on the outer edge of the two fixing holes. The multiple detachable clamping plates 10 are fixedly connected to the corresponding clamping plate fixing seat 9 through screws passing through the fixing holes. A cylinder fixing seat 7 is fixedly connected to the lower side of one side of the annular fixing seat 1. A drive cylinder 8 is rotatably connected to the outer side of the cylinder fixing seat 7. The output end of the drive cylinder 8 is rotatably connected to the corresponding clamping claw 4. When the drive cylinder 8 is started, it only needs to drive one clamping claw 4 to rotate so that the remaining three clamping claws 4 can rotate synchronously under the action of the linkage rod 5.

[0027] The clamping jaw 4 includes a jaw body 41, a force-applying end 42, a force-receiving end 43, a first screw 44, a second screw 45, and a rotating sleeve 46. The force-applying end 42 is located on the outer side of the jaw body 41 away from the clamping plate fixing seat 9, and the force-receiving end 43 is located on the inner side of the jaw body 41 away from the clamping plate fixing seat 9. The first screw 44 is fixedly connected to the middle of the force-applying end 42, and the second screw 45 is fixedly connected to the middle of the force-receiving end 43. The rotating sleeve 46 is located at a position corresponding to the clamp fixing shaft 3 of the jaw body 41, and the corresponding clamping... The fixed shaft 3 passes through the rotating sleeve 46 and is rotatably connected to the rotating sleeve 46. The two ends of the multiple linkage rods 5 are rotatably connected to the corresponding first screw 44 and second screw 45 respectively. The output end of the drive cylinder 8 is rotatably connected to the second screw 45 of the corresponding clamping claw 4. The four clamping claws 4 can be driven by a single cylinder to rotate synchronously along the corresponding clamping fixed shaft 3. Then, the pipe is clamped in four directions by the inward movement of the corresponding clamping plate fixing seat 9. It can be applied to the production of pipes with different diameters without the need to change the clamps.

[0028] The linkage 5 includes a threaded sleeve 51 and two threaded rods 52. The two ends of the threaded sleeve 51 are threadedly connected to the threaded rods 52 respectively. The threads of the two threaded rods 52 are in opposite directions. The outer side of the threaded sleeve 52 is hexagonal prism. The linkage 5 between the clamping jaws 4 is composed of a hexagonal prism-shaped threaded sleeve 51 and two threaded rods 52 with opposite thread directions. The length of the linkage 5 can be adjusted by a wrench to finely adjust the clamping angle, which is convenient for subsequent debugging.

[0029] Working principle: When this utility model is in operation, it is set at the inlet and outlet of the pipe cutting box. Each clamp can be driven by a single cylinder to make the four clamping claws 4 rotate synchronously along the corresponding clamping fixing shaft 3. Then, through the inward movement of the corresponding clamping plate fixing seat 9, it clamps the pipe in four directions. It can be applied to the production of pipes with different diameters without the need to change the clamps. The linkage rod 5 between the clamping claws 4 is composed of a hexagonal prism threaded sleeve 51 and two threaded rods 52 with opposite thread directions. The length of the linkage rod 5 can be adjusted by wrench to fine-tune the clamping angle, which is convenient for subsequent debugging.

[0030] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A pneumatic pipe clamp comprising an annular fixing base (1), characterised in that: Four equal parts of the annular fixing seat (1) are provided with fixed screw holes (2), four equal parts of the annular fixing seat (1) are provided with four clamp fixing shafts (3) at equal intervals, two annular fixing seats (1) are provided with four clamp jaws (4) through four clamp fixing shafts (3) respectively, four clamp jaws (4) are provided with four linkage rods (5), one end of the four clamp fixing shafts (3) is provided with a limiting ring (6), one end of the plurality of clamp jaws (4) is provided with a clamping plate fixing seat (9), and the plurality of clamping plate fixing seats (9) are fixedly connected with a detachable clamping plate (10). One side of the annular fixing seat (1) is fixedly connected with a cylinder fixing seat (7), and the outer side of the cylinder fixing seat (7) is rotatably connected with a driving cylinder (8), and the output end of the driving cylinder (8) is rotatably connected with the corresponding clamp jaw (4). The clamp jaw (4) comprises a jaw body (41), a force applying end (42), a force receiving end (43), a first screw (44), a second screw (45) and a rotating sleeve (46), the outer side of one end of the jaw body (41) away from the clamping plate fixing seat (9) is provided with the force applying end (42), the inner side of one end of the jaw body (41) away from the clamping plate fixing seat (9) is provided with the force receiving end (43), the middle part of the force applying end (42) is fixedly connected with the first screw (44), the middle part of the force receiving end (43) is fixedly connected with the second screw (45), and the corresponding position of the jaw body (41) and the clamp fixing shaft (3) is provided with the rotating sleeve (46). The corresponding clamp fixing shaft (3) penetrates through the rotating sleeve (46) and is rotatably connected with the rotating sleeve (46); the linkage rod (5) comprises a threaded sleeve (51) and two threaded rods (52), the two ends of the threaded sleeve (51) are respectively threadedly connected with the threaded rods (52), the threaded directions of the two threaded rods (52) are opposite, and the outer side of the threaded sleeve (51) is hexagonal.

2. A pneumatic pipe clamp according to claim 1, wherein: The four equal parts of the limiting ring (6) are fixedly connected with the annular fixing seat (1) through the corresponding clamp fixing shaft (3).

3. A pneumatic pipe clamp according to claim 1, wherein: The two ends of the plurality of linkage rods (5) are rotatably connected with the corresponding first screw (44) and second screw (45).

4. A pneumatic pipe clamp according to claim 1, wherein: The output end of the driving cylinder (8) is rotatably connected with the second screw (45) of the corresponding clamp jaw (4).

5. A pneumatic pipe clamp according to claim 1, wherein: The middle part of the plurality of clamping plate fixing seats (9) is provided with a fixed hole, and the outer edges of the two fixed holes are provided with limiting steps.

6. A pneumatic pipe clamp according to claim 1, wherein: The plurality of detachable clamping plates (10) are fixedly connected with the corresponding clamping plate fixing seat (9) through the screws penetrating through the fixed holes.

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