Self-locking pressing PC pneumatic pipe joint

Abstract

The utility model provides a self-locking pressing PC pneumatic pipe joint, which relates to the technical field of pneumatic pipe joints, and comprises a circular pipe, one end of a connecting pipe is fixedly connected with a screw pipe, the other end of the connecting pipe is fixedly connected with a connecting pipe, the inner wall of the connecting pipe is fixedly connected with a rubber sleeve, and the rubber sleeve is fixedly connected with the circular pipe. An auxiliary device is arranged on the outer surface of the rubber sleeve, the auxiliary device comprises two clamping plates, the two clamping plates are symmetrically arranged on the outer surface of the rubber sleeve, and auxiliary blocks are arranged on the sides, away from each other, of the two clamping plates. Under the action of the threaded rod, the threaded rod can drive the clamping plates to synchronously move until the two clamping plates completely clamp the joint of the rubber sleeve and the connecting pipe, the rubber sleeve can be protected, oxidation of the rubber sleeve is relieved, meanwhile, a gap between the rubber sleeve and the connecting pipe can be prevented, and the service life of the rubber sleeve is prolonged. And the excellent air tightness of the PC pneumatic pipe joint can be ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of pneumatic pipe joints, in particular to a self-locking and pressing PC pneumatic pipe joint. Background Art

[0002] PC pneumatic pipe joint is a kind of connection device widely used in pneumatic system. Its function is to connect different pneumatic equipment so that gas can be transmitted quickly and stably. PC pneumatic pipe joint is mainly connected by self-locking and pressing. One of its significant advantages is that the connection is fast and flexible, so it is widely used.

[0003] A rubber sleeve is provided at one end of the PC pneumatic pipe joint, and the connecting pipe is directly connected to the joint through the rubber sleeve. However, in actual use, the rubber sleeve will gradually oxidize and corrode, which may cause a gap between the rubber sleeve and the connecting pipe, thereby causing the air tightness of the PC pneumatic pipe joint to deteriorate. Utility Model Content

[0004] The utility model provides a self-locking and buckling PC pneumatic pipe joint to solve the problem that in actual use, the rubber sleeve will gradually oxidize and corrode, which may cause a gap between the rubber sleeve and the connecting pipe, thereby causing the air tightness of the PC pneumatic pipe joint to deteriorate.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a self-locking and crimping PC pneumatic pipe joint, comprising a round tube, one end of the connecting tube is fixedly connected to a screw tube, the other end of the connecting tube is fixedly connected to a connecting tube, the inner wall of the connecting tube is fixedly connected to a rubber sleeve, the outer surface of the rubber sleeve is provided with an auxiliary device, the auxiliary device comprises two clamping plates, the two clamping plates are symmetrically arranged on the outer surface of the rubber sleeve, auxiliary blocks are arranged on the sides away from each other, the inner wall of the auxiliary block is provided with a threaded rod, the outer surface of the threaded rod is threadedly connected to an L-shaped block, one side of the two L-shaped blocks is symmetrically fixedly connected to the outer surface of the connecting tube, and a convenient disassembly device is arranged between the auxiliary block and the clamping plate.

[0006] The effect achieved by the above components is: by setting two clamping plates, under the action of the threaded rod, the threaded rod is rotated, and the threaded rod will be extended and retracted on the inner wall of the L-shaped block. During the extension and retraction process, the threaded rod will drive the clamping plates to move synchronously until the two clamping plates completely clamp the connection between the rubber sleeve and the connecting pipe, which can protect the rubber sleeve, slow down the oxidation of the rubber sleeve, and prevent the formation of a gap between the rubber sleeve and the connecting pipe, which is conducive to ensuring the better air tightness of the PC pneumatic pipe joint.

[0007] Preferably, one end of the threaded rod is fixedly connected to a bearing, and the outer surface of the bearing is fixedly connected to the inner wall of the auxiliary block.

[0008] The effect achieved by the above components is that by providing the bearing, the friction between the threaded rod and the auxiliary block can be reduced when the threaded rod is rotating, making it easier to rotate the threaded rod.

[0009] Preferably, the other end of the threaded rod is fixedly connected to an operating block, and a protrusion is provided on the outer surface of the operating block.

[0010] The effect achieved by the above components is: by setting the operating block, rotating the operating block can drive the threaded rod to rotate, and at the same time, the outer surface of the operating block is provided with a protrusion, which can effectively increase the friction force of the outer surface of the operating block, and has an anti-slip effect when rotating the operating block, thereby facilitating the rotation of the threaded rod through the operating block.

[0011] Preferably, a clamping block is fixedly connected to one side of the clamping plate, a clamping slot is provided on one side of the L-shaped block, the clamping slot extends to one side of the connecting pipe, and the outer surface of the clamping block is inserted into the inner wall of the clamping slot.

[0012] The effect achieved by the above components is: by setting the card block and the card slot, the splint can be limited, thereby making the splint more stable during the movement.

[0013] Preferably, a rubber plate is provided on one side of the two clamping plates that are close to each other, and one side of the rubber plate is fixedly connected to one side of the clamping plates.

[0014] The effects achieved by the above components are: by arranging the rubber plate, the friction force on one side of the clamping plate can be increased, which can provide a certain degree of protection for the rubber sleeve and at the same time enable the clamping plate to clamp the rubber sleeve more tightly.

[0015] Preferably, the easy disassembly device comprises two threaded pins, the outer surfaces of the two threaded pins are inserted into the inner wall of the auxiliary block, the outer surfaces of the threaded pins are provided with nuts, and the outer surfaces of the threaded pins are threadedly inserted into the inner wall of the nuts.

[0016] The effect achieved by the above-mentioned components is: by setting a threaded pin, inserting the threaded pin into the inner wall of the auxiliary block, and then sleeved a nut on one end of the threaded pin, rotating the nut so that one side of the nut abuts against one side of the auxiliary block, the auxiliary block and one side of the splint can be fixed, and at the same time the splint can be disassembled, which is convenient for replacing damaged splints and rubber plates.

[0017] Preferably, a gasket is provided between the nut and the clamping plate, and the outer surface of the threaded pin is inserted into the inner wall of the nut.

[0018] The effect achieved by the above-mentioned components is that by arranging the gasket, one side of the nut is replaced by abutting against one side of the auxiliary block, which is helpful to prevent the nut from loosening.

[0019] Preferably, clamping blocks are provided on both sides of the auxiliary block, one side of the two clamping blocks is fixedly connected to one side of the clamping plate, and the two sides of the auxiliary block are respectively abutted against the adjacent sides of the two clamping blocks.

[0020] The effect achieved by the above components is: by providing two clamping blocks and inserting the auxiliary block between the two clamping blocks, the auxiliary block can be positioned, thereby facilitating the rapid installation of the clamping plate.

[0021] Compared with the prior art, the advantages and positive effects of the utility model are:

[0022] In the utility model, two clamping plates are arranged, and under the action of the threaded rod, the threaded rod can drive the clamping plates to move synchronously until the two clamping plates completely clamp the connection between the rubber sleeve and the connecting pipe, thereby protecting the rubber sleeve, slowing down the oxidation of the rubber sleeve, and preventing the formation of a gap between the rubber sleeve and the connecting pipe, which is conducive to ensuring the better air tightness of the PC pneumatic pipe joint. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional structural schematic diagram of the main body of the utility model;

[0024] Figure 2 It is a three-dimensional structural schematic diagram of the circular tube of the utility model;

[0025] Figure 3 For this utility model Figure 2 A schematic diagram of the enlarged structure at point A;

[0026] Figure 4 For this utility model Figure 2 Schematic diagram of the enlarged structure at B.

[0027] Legend: 1. Round tube; 2. Screw tube; 3. Connecting tube; 4. Rubber sleeve; 5. Auxiliary device; 51. Clamp; 52. Auxiliary block; 53. Threaded rod; 54. L-shaped block; 55. Bearing; 56. Operating block; 57. Clamp block; 58. Clamping slot; 59. Rubber sheet; 6. Disassembly device; 61. Threaded pin; 62. Nut; 63. Gasket; 64. Clamp block. DETAILED DESCRIPTION

[0028] Example 1, reference Figure 1-Figure 4As shown, this embodiment discloses a self-locking and crimping PC pneumatic pipe joint, comprising a round tube 1, one end of the round tube 1 is fixedly connected to a screw tube 2, the other end of the round tube 1 is fixedly connected to a connecting tube 3, the inner wall of the connecting tube 3 is fixedly connected to a rubber sleeve 4, the outer surface of the rubber sleeve 4 is provided with an auxiliary device 5, the auxiliary device 5 comprises two clamping plates 51, the two clamping plates 51 are symmetrically arranged on the outer surface of the rubber sleeve 4, the two clamping plates 51 are separated from each other by an auxiliary block 52, the inner wall of the auxiliary block 52 is provided with a threaded rod 53, the outer surface of the threaded rod 53 is threadedly connected to an L-shaped block 54, one side of the two L-shaped blocks 54 is connected to the connecting The outer surface of the tube 3 is symmetrically fixedly connected, and a disassembly device 6 is arranged between the auxiliary block 52 and the clamping plate 51. By setting two clamping plates 51, under the action of the threaded rod 53, the threaded rod 53 is rotated, and the threaded rod 53 will be extended and retracted on the inner wall of the L-shaped block 54. The threaded rod 53 will drive the clamping plates 51 to move synchronously during the extension and retraction process until the two clamping plates 51 completely clamp the connection between the rubber sleeve 4 and the connecting pipe 3, which can protect the rubber sleeve 4, slow down the oxidation of the rubber sleeve 4, and prevent the formation of a gap between the rubber sleeve 4 and the connecting pipe 3, which is conducive to ensuring the better air tightness of the PC pneumatic pipe joint.

[0029] Reference Figure 2 and Figure 3 As shown, one end of the threaded rod 53 is fixedly connected to a bearing 55, and the outer surface of the bearing 55 is fixedly connected to the inner wall of the auxiliary block 52. By providing the bearing 55, the friction between the threaded rod 53 and the auxiliary block 52 can be reduced when the threaded rod 53 is rotated, making it easier to rotate the threaded rod 53; the other end of the threaded rod 53 is fixedly connected to an operating block 56, and the outer surface of the operating block 56 is provided with a protrusion. By providing the operating block 56, rotating the operating block 56 can drive the threaded rod 53 to rotate. At the same time, the outer surface of the operating block 56 is provided with a protrusion, which can effectively increase the friction of the outer surface of the operating block 56, and has an anti-slip effect when the operating block 56 is rotated, thereby facilitating the rotation of the threaded rod 53 through the operating block 56.

[0030] Reference Figure 2-Figure 4 As shown, a clamping block 57 is fixedly connected to one side of the clamping plate 51, and a clamping groove 58 is opened on one side of the L-shaped block 54, and the clamping groove 58 extends to one side of the connecting pipe 3. The outer surface of the clamping block 57 is inserted into the inner wall of the clamping groove 58. By setting the clamping block 57 and the clamping groove 58, the clamping plate 51 can be limited, so that the clamping plate 51 is more stable during the movement; a rubber plate 59 is provided on the side where the two clamping plates 51 are close to each other, and one side of the rubber plate 59 is fixedly connected to one side of the clamping plate 51. By setting the rubber plate 59, the friction force on one side of the clamping plate 51 can be increased, which can provide a certain protection for the rubber sleeve 4, and at the same time, the clamping plate 51 can clamp the rubber sleeve 4 more tightly.

[0031] Reference Figure 2 and Figure 3 As shown, the disassembly device 6 includes two threaded pins 61, the outer surfaces of the two threaded pins 61 are inserted into the inner wall of the auxiliary block 52, and the outer surface of the threaded pin 61 is provided with a nut 62. The outer surface of the threaded pin 61 is threadedly inserted into the inner wall of the nut 62. By setting the threaded pin 61, the threaded pin 61 is inserted into the inner wall of the auxiliary block 52, and then the nut 62 is sleeved on one end of the threaded pin 61. The nut 62 is rotated so that one side of the nut 62 abuts against one side of the auxiliary block 52, so that the auxiliary block 52 and one side of the splint 51 can be fixed, and at the same time the splint 51 can be disassembled, which is convenient for replacing the damaged splint 51 and rubber sheet 59.

[0032] Reference Figure 2 and Figure 3 As shown, a gasket 63 is provided between the nut 62 and the clamp plate 51, and the outer surface of the threaded pin 61 is inserted into the inner wall of the nut 62. By providing the gasket 63, one side of the nut 62 is abutted against one side of the auxiliary block 52 instead of the other side of the nut 62, which is beneficial to prevent the nut 62 from loosening; clamping blocks 64 are provided on both sides of the auxiliary block 52, one side of the two clamping blocks 64 is fixedly connected to one side of the clamp plate 51, and the two sides of the auxiliary block 52 are respectively abutted against the side close to the two clamping blocks 64. By providing two clamping blocks 64, the auxiliary block 52 is inserted between the two clamping blocks 64, so that the auxiliary block 52 can be positioned, thereby facilitating the rapid installation of the clamp plate 51.

[0033] Working principle: When the connection between the rubber sleeve 4 and the connecting tube 3 needs to be fixed, the rotating operation block 56 drives the threaded rod 53 to rotate, and the threaded rod 53 will be extended and retracted on the inner wall of the L-shaped block 54. Under the limit of the clamping block 57 and the clamping groove 58, the threaded rod 53 will drive the clamping plate 51 to move synchronously during the extension and retraction process until the rubber plates 59 on one side of the two clamping plates 51 completely clamp the connection between the rubber sleeve 4 and the connecting tube 3, which can protect the rubber sleeve 4, slow down the oxidation of the rubber sleeve 4, and prevent the formation of a gap between the rubber sleeve 4 and the connecting tube 3, which is conducive to ensuring the PC pneumatic The pipe joint has relatively good air tightness; when the splint 51 needs to be installed, the threaded pin 61 is inserted into the inner wall of the auxiliary block 52, the auxiliary block 52 is inserted between the two clamping blocks 64, and then the nut 62 and the gasket 63 are sleeved on one end of the threaded pin 61, the clamping block 57 is inserted into the inner wall of the clamping groove 58, and the nut 62 is rotated so that one side of the nut 62 abuts against one side of the gasket 63, and one side of the gasket 63 abuts against one side of the auxiliary block 52, so that the auxiliary block 52 and one side of the splint 51 can be fixed, and at the same time the splint 51 can be disassembled, which is convenient for replacing the damaged splint 51 and rubber sheet 59.

Claims

1. A self-locking crimping PC pneumatic pipe joint, comprising a round pipe (1), characterized in that: One end of the circular tube (1) is fixedly connected to a spiral tube (2), and the other end of the circular tube (1) is fixedly connected to a connecting tube (3). The inner wall of the connecting tube (3) is fixedly connected to a rubber sleeve (4), and the outer surface of the rubber sleeve (4) is provided with an auxiliary device (5). The auxiliary device (5) comprises two clamping plates (51), and the two clamping plates (51) are symmetrically arranged on the outer surface of the rubber sleeve (4). Auxiliary blocks (52) are arranged on the sides away from each other of the two clamping plates (51). The inner wall of the auxiliary block (52) is provided with a threaded rod (53), and the outer surface of the threaded rod (53) is threadedly connected to an L-shaped block (54). One side of the two L-shaped blocks (54) is symmetrically fixedly connected to the outer surface of the connecting tube (3), and a convenient disassembly device (6) is arranged between the auxiliary block (52) and the clamping plate (51).

2. A self-locking crimping PC pneumatic pipe joint according to claim 1, characterized in that: A bearing (55) is fixedly connected to one end of the threaded rod (53), and an outer surface of the bearing (55) is fixedly connected to an inner wall of the auxiliary block (52).

3. A self-locking crimping PC pneumatic pipe joint according to claim 1, characterized in that: The other end of the threaded rod (53) is fixedly connected to an operating block (56), and a protrusion is provided on the outer surface of the operating block (56).

4. A self-locking crimping PC pneumatic pipe joint according to claim 1, characterized in that: A clamping block (57) is fixedly connected to one side of the clamping plate (51), a clamping groove (58) is provided on one side of the L-shaped block (54), the clamping groove (58) extends to one side of the connecting pipe (3), and the outer surface of the clamping block (57) is inserted into the inner wall of the clamping groove (58).

5. The self-locking crimping PC pneumatic pipe joint according to claim 1, characterized in that: A rubber plate (59) is provided on one side of the two clamping plates (51) that are close to each other, and one side of the rubber plate (59) is fixedly connected to one side of the clamping plates (51).

6. A self-locking crimping PC pneumatic pipe joint according to claim 1, characterized in that: The easy disassembly device (6) comprises two threaded pins (61), the outer surfaces of the two threaded pins (61) are inserted into the inner wall of the auxiliary block (52), the outer surfaces of the threaded pins (61) are provided with nuts (62), and the outer surfaces of the threaded pins (61) are threadedly inserted into the inner wall of the nuts (62).

7. A self-locking crimping PC pneumatic pipe joint according to claim 6, characterized in that: A gasket (63) is provided between the nut (62) and the clamping plate (51), and the outer surface of the threaded pin (61) is inserted into the inner wall of the nut (62).

8. A self-locking crimping PC pneumatic pipe joint according to claim 7, characterized in that: Clamping blocks (64) are provided on both sides of the auxiliary block (52), one side of the two clamping blocks (64) is fixedly connected to one side of the clamping plate (51), and the two sides of the auxiliary block (52) are respectively in contact with the adjacent sides of the two clamping blocks (64).

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