Pin shaft fixing sleeve with stable structure

Abstract

The invention relates to the technical field of pin shafts, in particular to a pin shaft fixing sleeve with a stable structure, which comprises a pin shaft body, one end of the pin shaft body is rotatably connected with a baffle ring I, the other end of the pin shaft body is inserted with a connecting sleeve, one end of the connecting sleeve is fixedly provided with a baffle plate, and the surface of the baffle plate is rotatably connected with a baffle ring II; the hinge pin fixing sleeve has the beneficial effects that the hinge pin fixing sleeve with the stable structure achieves stable connection between the hinge pin body and the connecting sleeve by designing the first limiting groove, the second limiting groove, the first baffle ring matched with the first limiting groove and the second baffle ring matched with the second limiting groove. The outer diameter of the baffle ring is larger than the rod diameter of the pin shaft body, and the pin shaft can be effectively prevented from being disengaged from the inserting hole. The first rubber gasket and the second rubber gasket are fixed to the surface of the first baffle ring and the surface of the second baffle ring respectively, and after the pin shaft is inserted into the insertion hole of the workpiece and fixed, the rubber gaskets can be tightly attached to the surface of the workpiece, so that liquid or gas is effectively prevented from leaking from the insertion hole of the pin shaft.

Description

Technical Field

[0001] The invention relates to the field of pin shafts, and in particular to a pin shaft fixing sleeve with a stable structure. Background Art

[0002] In the field of mechanical assembly and connection, pins are a commonly used connector and are widely used in various equipment and structures. However, traditional pin fixing methods often have problems such as unstable fixing and poor sealing, especially in situations where large loads need to be borne or sealing needs to be ensured. These problems are particularly prominent.

[0003] Traditional pin fixing methods usually rely on simple insertion and locking mechanisms, such as using components such as nuts and washers to fix the pins. However, this method is prone to loosening or deformation when used for a long time or under heavy loads, resulting in unstable connections. In addition, for pin connections that require sealing, traditional fixing methods often cannot effectively prevent liquid or gas from leaking from the pin socket, thus affecting the performance and safety of the equipment.

[0004] In order to solve the above problems, some improved pin fixing sleeves have appeared on the market, but these products often have the disadvantages of complex structure, difficult installation, high cost, etc. Therefore, it is particularly important to develop a pin fixing sleeve with stable structure, good sealing and easy installation. Summary of the invention

[0005] The object of the present invention is to provide a pin fixing sleeve with a stable structure to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a pin shaft fixing sleeve with a stable structure, comprising a pin shaft body, one end of the pin shaft body is rotatably connected to a retaining ring 1, the other end of the pin shaft body is plugged into a connecting sleeve, one end of the connecting sleeve is fixed with a baffle, and the surface of the baffle is rotatably connected to a retaining ring 2.

[0007] Preferably, a limiting groove 1 is provided at one end of the pin shaft body, the limiting groove 1 is a circular ring groove, a retaining ring is arranged inside the limiting groove 1, and the outer diameter of the retaining ring 1 is larger than the rod diameter of the pin shaft body.

[0008] Preferably, a rubber gasket 1 is fixed on the surface of the retaining ring 1, and the rubber gasket 1 faces the retaining ring 2.

[0009] Preferably, a slot is provided at the other end of the pin shaft body, a connecting handle is integrally formed inside the slot, the connecting handle is a square column, a connecting sleeve is sleeved on the connecting handle, the inner ring opening of the connecting sleeve is a square opening structure, and the diameter of the baffle is larger than the rod diameter of the pin shaft body.

[0010] Preferably, a reserved groove is provided on the surface of the baffle, and two through holes are provided on the surface of the reserved groove, and screws are inserted into the inside of the through holes. One end of the screw is fixed to the surface of the connecting handle, the rod length of the screw is greater than the hole depth of the through hole, and the other end of the screw is sleeved with a nut threaded on.

[0011] Preferably, a rubber sealing piece is provided inside the reserved groove, the reserved groove is a round mouth structure, the rubber sealing piece is a round plate structure, and the arc surface of the rubber sealing piece reserves a fifteen-degree arc surface fixed on the surface of the reserved groove.

[0012] Preferably, a second limiting groove is provided on the surface of the baffle plate, and the second limiting groove is a convex circular ring groove. A swivel is rotatably connected inside the second limiting groove, and the swivel is a convex circular ring plate. One end of the swivel extending out of the second limiting groove is fixed on the surface of the second baffle ring.

[0013] Preferably, a rubber gasket 2 is fixed on the surface of the second retaining ring, and the rubber gasket 2 faces the first retaining ring.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The pin fixing sleeve with a stable structure proposed in the present invention realizes a stable connection between the pin shaft body and the connecting sleeve by designing a limiting groove 1 and a limiting groove 2, and a retaining ring 1 and a retaining ring 2 matched therewith. The outer diameter of the retaining ring is larger than the rod diameter of the pin shaft body, which can effectively prevent the pin shaft from falling out of the socket. At the same time, the square mouth structure and the square column between the connecting sleeve and the connecting handle cooperate to further enhance the stability of the connection. Rubber gaskets 1 and 2 are fixed on the surfaces of retaining rings 1 and 2, respectively. When the pin shaft is inserted into the workpiece socket and fixed, the rubber gasket can fit tightly on the workpiece surface, effectively preventing liquid or gas from leaking from the pin shaft socket. In addition, the design of the rubber seal also further enhances the sealing effect and ensures the sealing of the pin shaft connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the present invention;

[0017] Figure 2 It is a schematic diagram of the connection structure between the pin body and the retaining ring of the present invention;

[0018] Figure 3 It is a side view of the structure of the present invention;

[0019] Figure 4 for Figure 3 Structural cross-section view at AA in the middle;

[0020] Figure 5 This is a schematic diagram of the pin shaft structure of the present invention;

[0021] Figure 6This is a schematic diagram of the connection structure of the connecting sleeve and the baffle of the present invention;

[0022] Figure 7 It is a schematic diagram of the connection structure of the rotating ring and the retaining ring of the present invention.

[0023] In the figure: pin shaft 1, limit groove 2, retaining ring 3, rubber gasket 4, slot

[0024] 5. connecting handle 6, connecting sleeve 7, baffle 8, reserved groove 9, through hole 10, screw 11, nut 12, rubber sealing piece 13, limiting groove 2 14, swivel 15, baffle ring 2 16, rubber gasket 2 17. DETAILED DESCRIPTION

[0025] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] See also Figure 1-Figure 7The present invention provides a technical solution: a pin shaft fixing sleeve with a stable structure, comprising a pin shaft body 1, one end of the pin shaft body 1 is rotatably connected with a retaining ring 3, one end of the pin shaft body 1 is provided with a limiting groove 2, the limiting groove 2 is a circular ring groove, the retaining ring 3 is sleeved inside the limiting groove 2, the outer diameter of the retaining ring 3 is larger than the rod diameter of the pin shaft body 1, a rubber gasket 4 is fixed on the surface of the retaining ring 3, and the rubber gasket 4 faces the retaining ring 16; when the pin shaft body 1 is used, one end of the pin shaft body 1 is inserted into the pin shaft insertion hole of the workpiece, and the pin shaft body 1 is pushed so that the retaining ring 3 is against one side of the workpiece, and at this time the rubber gasket 4 is pressed against the surface of the workpiece, so as to realize the covering and sealing of a section of the pin shaft insertion hole on the surface of the workpiece. The other end of the pin shaft body 1 is plugged with a connecting sleeve 7, one end of the connecting sleeve 7 is fixed with a baffle 8, and the surface of the baffle 8 is rotatably connected with a baffle ring 16. The other end of the pin shaft body 1 is provided with a slot 5, and the interior of the slot 5 is integrally formed with a connecting handle 6, the connecting handle 6 is a square column, the connecting sleeve 7 is sleeved on the connecting handle 6, and the inner ring of the connecting sleeve 7 is a square mouth structure. The diameter of the baffle 8 is larger than the rod diameter of the pin shaft body 1, and a reserved groove 9 is provided on the surface of the baffle 8. Two through holes 10 are provided on the surface of the reserved groove 9, and screws 11 are inserted into the interior of the through holes 10. One end of the screw 11 is fixed to the surface of the connecting handle 6, and the rod length of the screw 11 is greater than the rod diameter of the through hole 10. The hole is deep, and the other end of the screw rod 11 is sleeved with a nut 12 threaded on. A rubber sealing piece 13 is arranged inside the reserved groove 9. The reserved groove 9 is a round mouth structure, and the rubber sealing piece 13 is a circular plate structure. The arc surface of the rubber sealing piece 13 reserves a fifteen-degree arc surface and is fixed on the surface of the reserved groove 9. A limiting groove 2 14 is provided on the surface of the baffle plate 8. The limiting groove 2 14 is a "convex" shaped circular ring groove. A swivel 15 is rotatably connected inside the limiting groove 2 14. The swivel 15 is a "convex" shaped circular ring plate. One end of the swivel 15 extending out of the limiting groove 2 14 is fixed on the surface of the baffle ring 2 16. A rubber gasket 2 17 is fixed on the surface of the baffle ring 2 16, and the rubber gasket 2 17 faces the baffle ring 1 3.

[0027] After the pin passes through the pin insertion hole on the surface of the workpiece, the connecting sleeve 7 is inserted into the slot 5, the connecting sleeve 7 is sleeved on the connecting handle 6, and the screw 11 passes through the through hole 10 and is inserted into the reserved groove 9. After opening the rubber sealing sheet 13, the nut 12 is screwed onto the screw 11 and locked. At this time, the baffle 8 is fixed to one end of the pin shaft body 1, and the baffle ring 16 and the rubber gasket 17 are against the other side of the workpiece to achieve sealing on the other side of the pin insertion hole on the surface of the workpiece.

[0028] The detailed process of using a structurally stable pin-fixing sleeve is as follows:

[0029] Align the end of the pin shaft body 1 with the retaining ring 3 with the pin shaft insertion hole of the workpiece and insert it slowly. Push the pin shaft body 1 until the retaining ring 3 is close to one side of the workpiece, and the rubber gasket 4 is pressed against the surface of the workpiece to achieve a covering seal. Take out the connecting sleeve 7 and confirm that its inner ring mouth is a square mouth structure, which matches the connecting handle 6 (square column) at the other end of the pin shaft body 1. Check whether the diameter of the baffle 8 is larger than the rod diameter of the pin shaft body 1 to ensure that it can be effectively blocked. Put the connecting sleeve 7 on the connecting handle 6 to ensure that the connecting sleeve 7 and the connecting handle 6 fit tightly. At this time, the baffle 8 should be located at the other end of the pin shaft body 1, and the reserved groove 9 and the through hole 10 are facing outward. Turn over the rubber sealing sheet 13 in the reserved groove 9 to ensure that the through hole 10 is unobstructed. Pass the screw rod 11 through the through hole 10 and insert it into the reserved groove 9. Screw the nut 12 on the other end of the screw rod 11 and gradually tighten it until the baffle 8 is firmly fixed to one end of the pin shaft body 1. Confirm that the swivel 15 in the second limiting groove 14 can rotate freely, and the end of the swivel 15 extending out of the second limiting groove 14 is fixed on the surface of the second retaining ring 16. Ensure that the rubber gasket 17 is in close contact with the surface of the workpiece to achieve a sealing effect, thereby preventing other debris from entering the pin shaft insertion hole on the surface of the workpiece.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pin fixing sleeve with a stable structure, comprising a pin shaft body (1), characterized in that: One end of the pin shaft body (1) is rotatably connected to a retaining ring 1 (3), the other end of the pin shaft body (1) is plugged with a connecting sleeve (7), one end of the connecting sleeve (7) is fixed with a retaining plate (8), and the surface of the retaining plate (8) is rotatably connected to a retaining ring 2 (16).

2. A pin fixing sleeve with a stable structure according to claim 1, characterized in that: A limiting groove (2) is provided at one end of the pin shaft body (1), the limiting groove (2) is a circular ring groove, a retaining ring (3) is sleeved inside the limiting groove (2), and the outer diameter of the retaining ring (3) is larger than the rod diameter of the pin shaft body (1).

3. A pin fixing sleeve with a stable structure according to claim 1, characterized in that: A rubber gasket one (4) is fixed on the surface of the retaining ring one (3), and the rubber gasket one (4) faces the retaining ring two (16).

4. A pin fixing sleeve with a stable structure according to claim 1, characterized in that: The other end of the pin shaft body (1) is provided with a slot (5), the interior of the slot (5) is integrally formed with a connecting handle (6), the connecting handle (6) is a square column, a connecting sleeve (7) is sleeved on the connecting handle (6), the inner ring opening of the connecting sleeve (7) is a square opening structure, and the diameter of the baffle (8) is larger than the rod diameter of the pin shaft body (1).

5. A pin fixing sleeve with a stable structure according to claim 4, characterized in that: The surface of the baffle (8) is provided with a reserved groove (9), the surface of the reserved groove (9) is provided with two through holes (10), the insides of the through holes (10) are both plugged with screw rods (11), one end of the screw rod (11) is fixed on the surface of the connecting handle (6), the length of the screw rod (11) is greater than the depth of the through hole (10), and the other end of the screw rod (11) is sleeved with a nut (12) threadedly connected.

6. A pin fixing sleeve with a stable structure according to claim 5, characterized in that: A rubber sealing piece (13) is arranged inside the reserved groove (9); the reserved groove (9) is in a round mouth structure; the rubber sealing piece (13) is in a round plate structure; the arc surface of the rubber sealing piece (13) is reserved with a 15-degree arc surface fixed on the surface of the reserved groove (9).

7. A pin fixing sleeve with a stable structure according to claim 1, characterized in that: The surface of the baffle plate (8) is provided with a second limiting groove (14), which is a convex-shaped circular groove. A rotating ring (15) is rotatably connected inside the second limiting groove (14), and the rotating ring (15) is a convex-shaped circular ring plate. One end of the rotating ring (15) extending out of the second limiting groove (14) is fixed on the surface of the second baffle ring (16).

8. The pin fixing sleeve with a stable structure according to claim 1, characterized in that: A rubber gasket 2 (17) is fixed on the surface of the second retaining ring (16), and the rubber gasket 2 (17) faces the first retaining ring (3).

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