Handle independent blowing forming structure

Abstract

The utility model discloses an independent air blowing forming structure of a handle. The independent air blowing forming structure comprises a structure body, a structure rear cover, a piston rod, a return spring, a sealing ring and an air needle. The structure rear cover is arranged on the rear side of the structure body and fixedly connected with the structure body, the piston rod is arranged between the structure body and the structure rear cover, the air needle is arranged on the front side of the piston rod and fixedly connected with the piston rod, and the air needle can extend out of a structure body through hole in the front side of the structure body. A connecting base is arranged on the rear side of the piston rod, a return spring is wound on the side face of the piston rod on the front side of the connecting base, a connecting base connecting groove is formed in the side face of the connecting base, and a sealing ring is arranged in the connecting base connecting groove. A rear cover air inlet hole is formed in the structure rear cover, and an air needle through hole and a piston rod through hole are formed in the middle of the air needle and the middle of the piston rod respectively and communicate with each other.

Description

Technical Field

[0001] This utility model relates to the field of blow molding molds, and in particular to a handle-shaped structure formed by blowing air separately. Background Technology

[0002] Existing blow molding structures for handles mainly use a thumb cylinder to drive the movement of the air needle. However, in actual use, the sealing ring inside the thumb cylinder is easily damaged, and the existing structure cannot replace the sealing ring inside the thumb cylinder. This results in a relatively high cost of use for the existing design. Therefore, there is a need for a handle blow molding structure that is simple in structure, durable, and allows for easy replacement of the internal sealing ring when it is damaged. Utility Model Content

[0003] The main purpose of this utility model is to provide a handle with a simple structure, good durability, and easy replacement of the internal sealing ring when the sealing ring is damaged.

[0004] This utility model proposes a handle-in-place air-blowing structure, including a structural body, a structural back cover, a piston rod, a return spring, a sealing ring, and an air needle;

[0005] The rear cover of the structure is disposed on the rear side of the structure body and is fixedly connected to the structure body. The piston rod is disposed between the structure body and the rear cover of the structure. The air needle is disposed on the front side of the piston rod and is fixedly connected to the piston rod. The air needle extends from the through hole of the structure body on the front side of the structure body.

[0006] A connecting seat is provided on the rear side of the piston rod, the return spring is wound around the side of the piston rod on the front side of the bottom of the connecting seat, a connecting seat connecting groove is provided on the side of the connecting seat, and the sealing ring is disposed in the connecting seat connecting groove;

[0007] The structure has a rear cover air inlet hole, and the air needle and the piston rod are respectively provided with an air needle through hole and a piston rod through hole, and the air needle through hole and the piston rod through hole are connected.

[0008] Air is introduced through the air inlet of the rear cover and pushes the piston rod forward, causing the air needle to be inserted into the blow molding mold. At this time, the gas enters the blow molding mold through the piston rod through hole and the air needle through hole to achieve the inflation process.

[0009] Preferably, it also includes an air nozzle, which is disposed on the air inlet of the rear cover.

[0010] Preferably, the air needle is provided with an external connecting thread on the rear side, and the piston rod is provided with an internal connecting thread on the inner side of the front end of the piston rod. The air needle and the piston rod are fixedly connected by the engagement of the external connecting thread and the internal connecting thread.

[0011] Preferably, the inner side of the structural body is provided with a first connecting groove, a second connecting groove, and a third connecting groove arranged sequentially. A first connecting boss is provided between the first connecting groove and the second connecting groove, and a second connecting boss is provided between the second connecting groove and the third connecting groove.

[0012] The diameter of the first connecting groove of the body is adapted to the diameter of the front side of the piston rod, the diameter of the second connecting groove of the body is adapted to the diameter of the return spring, and the diameter of the third connecting groove of the body is adapted to the diameter of the connecting seat on which the sealing ring is provided.

[0013] The first connecting boss can compress the return spring during air intake, and the second connecting boss can cooperate with the connecting seat to limit the piston rod.

[0014] Preferably, an exhaust hole is provided on the side of the structure body at the position corresponding to the second connecting groove of the body, so that exhaust can be released after processing.

[0015] Preferably, the mold also includes a positioning plate, which is provided with positioning plate positioning holes, positioning plate connecting holes and positioning plate fixing holes, and the blow molding die is provided with mold positioning holes and mold connecting holes on its side.

[0016] A positioning post is provided in the positioning hole of the mold. The positioning post cooperates with the positioning hole of the positioning plate to position the positioning plate on the side of the blow molding mold. The positioning plate is connected to the blow molding mold by screws by connecting the mold connection hole and the positioning plate connection hole.

[0017] The structure body has a fixing hole on its side. The fixing hole of the positioning plate and the fixing hole of the structure body are connected by screws, so that the structure body is connected and mounted on the positioning plate.

[0018] The beneficial effects of the individually blown-formed handle structure of this utility model are:

[0019] 1. By designing a structure that is easy to disassemble, internal parts can be easily maintained and reinstalled after damage.

[0020] 2. By using a positioning plate to connect and set the handle separately to the blow molding mold, the insertion of the air needle during blow molding can be more precise. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the individually blown-formed handle structure of this utility model.

[0022] Figure 2 This is a practical state diagram of the handle individually blown-formed structure of this utility model.

[0023] Figure 3 This is a disassembly diagram of the individually blown-formed handle structure of this utility model.

[0024] Figure 4 This is a cross-sectional view of the individually blown-formed handle structure of this utility model.

[0025] Figure 5 This is a perspective view of the structural body of the handle individually blown into shape according to this utility model.

[0026] Figure 6 This is a cross-sectional view of the structural body of the handle individually blown into shape according to this utility model.

[0027] The following are the labels in the diagram: 1. Main body of the structure, 2. Rear cover of the structure, 3. Positioning plate, 4. Air nozzle, 5. Air needle, 6. Piston rod, 7. Return spring, 8. Sealing ring, 11. Exhaust hole, 12. Through hole of the main body, 13. Fixing hole of the main body, 14. First connecting groove of the main body, 15. Second connecting groove of the main body, 16. Third connecting groove of the main body, 17. First connecting boss, 18. Second connecting boss, 31. Positioning hole of the positioning plate, 32. Connecting hole of the positioning plate, 33. Fixing hole of the positioning plate, 61. Connecting seat, 62. Connecting groove of the connecting seat.

[0028] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0029] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0030] Reference Figures 1 to 6 An embodiment of the handle-by-air-blowing structure of this utility model is proposed:

[0031] A handle-shaped blow molding structure includes a structural body 1, a structural back cover 2, a piston rod 6, a return spring 7, a sealing ring 8, an air needle 5, an air nozzle 4, and a positioning plate 3.

[0032] The air needle 5 has an external connecting thread on its rear side, and the piston rod 6 has an internal connecting thread on its inner front side. The air needle 5 is threadedly connected to the front side of the piston rod 6 through the engagement of the external connecting thread and the internal connecting thread. An air needle through hole and a piston rod through hole are respectively provided between the air needle 5 and the piston rod 6, and these two through holes are interconnected. A connecting seat 61 is provided on the rear side of the piston rod 6. A return spring 7 is wound around the side of the piston rod 6 on the front bottom of the connecting seat 61. A connecting seat connecting groove 62 is provided on the side of the connecting seat 61, and a sealing ring 8 is disposed within the connecting seat connecting groove 62.

[0033] The structural rear cover 2 is fixedly connected to the structural body 1 via a threaded connection on the rear side of the structural body 1. The structural rear cover 2 is provided with a rear cover air inlet, and the air nozzle 4 is provided on the rear cover air inlet.

[0034] The inner side of the main body 1 is provided with a first connecting groove 14, a second connecting groove 15, and a third connecting groove 16 arranged sequentially. A first connecting boss 17 is provided between the first connecting groove 14 and the second connecting groove 15, and a second connecting boss 18 is provided between the second connecting groove 15 and the third connecting groove 16. The diameter of the first connecting groove 14 is adapted to the diameter of the front side of the piston rod 6, the diameter of the second connecting groove 15 is adapted to the diameter of the return spring 7, and the diameter of the third connecting groove 16 is adapted to the diameter of the connecting seat 61 on which the sealing ring 8 is provided. The first connecting boss 17 can compress the return spring 7 during air intake, and the second connecting boss 18 can cooperate with the connecting seat 61 to limit the piston rod 6.

[0035] The front side of the main body 1 is provided with a through hole 12 for the air needle 5 to extend. The side of the main body 1 is provided with a main body fixing hole 13, and the side of the main body 1 is provided with an exhaust hole 11 corresponding to the position of the second connecting groove 15. The exhaust hole 11 can be used to exhaust air after processing.

[0036] The positioning plate 3 is provided with positioning plate positioning holes 31, positioning plate connecting holes 32, and positioning plate fixing holes 33. The side of the blow molding mold is provided with mold positioning holes and mold connecting holes. A positioning post is provided in the mold positioning hole. The positioning post cooperates with the positioning plate positioning hole 31 to position the positioning plate 3 on the side of the blow molding mold. The positioning plate 3 is connected to the blow molding mold by screws connecting the mold connecting hole and the positioning plate connecting hole 32. The structural body 1 is connected to the positioning plate 3 by screws connecting the positioning plate fixing hole 33 and the body fixing hole 13.

[0037] During operation, gas enters through nozzle 4. Part of the gas pushes piston rod 6 forward, causing air needle 5 to penetrate the handle area within the blow molding mold. The remaining gas passes through the piston rod through-hole and air needle through-hole before being injected into the handle preform. The gas inflates the plastic, causing it to conform to the handle cavity of the mold, thus fully shaping the handle. After inflation is complete, gas input is stopped. At this point, under the action of return spring 7, air needle 5 returns to its original position, thereby completing the blow molding process.

[0038] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the contents of the present utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. A handle is separately blow-molded structure, characterized in that, including structure body, structure rear cover, piston rod, return spring, sealing ring and gas needle; The structure rear cover is arranged on the rear side of the structure body and is fixedly connected with the structure body, the piston rod is arranged between the structure body and the structure rear cover, the gas needle is arranged on the front side of the piston rod and is fixedly connected with the piston rod, and the gas needle can be stretched out from the structure body through hole on the front side of the structure body; The rear side of the piston rod is provided with a connecting seat, the return spring is arranged on the side surface of the piston rod on the bottom front side of the connecting seat, the connecting seat side surface is provided with a connecting seat connecting groove, and the sealing ring is arranged in the connecting seat connecting groove; The structure rear cover is provided with a rear cover air inlet hole, the gas needle and the piston rod are respectively provided with a gas needle through hole and a piston rod through hole, and the gas needle through hole and the piston rod through hole are communicated; Air is introduced through the rear cover air inlet hole and the piston rod is pushed forward, so that the gas needle is inserted into the blow mold, at this time, the gas enters the blow mold through the piston rod through hole and the gas needle through hole to realize the process of blowing up.

2. The handle of claim 1, wherein It also includes a gas nozzle, which is arranged on the rear cover air inlet hole.

3. The handle of claim 1, wherein The rear side of the gas needle is provided with a gas needle outer connecting thread, the inner side of the front end of the piston rod is provided with a piston rod inner connecting thread, and the gas needle and the piston rod are fixedly connected through cooperation of the gas needle outer connecting thread and the piston rod inner connecting thread.

4. The handle is separately blow-molded structure according to claim 3, characterized in that, The inner side of the structure body is provided with a body first connecting groove, a body second connecting groove and a body third connecting groove arranged in sequence, a first connecting boss is arranged between the body first connecting groove and the body second connecting groove, and a second connecting boss is arranged between the body second connecting groove and the body third connecting groove; The diameter of the body first connecting groove is matched with the diameter of the front side of the piston rod, the diameter of the body second connecting groove is matched with the diameter of the return spring, and the diameter of the body third connecting groove is matched with the diameter of the connecting seat provided with the sealing ring; The first connecting boss can compress the return spring when air is introduced, and the second connecting boss can cooperate with the connecting seat to limit the piston rod.

5. The handle of claim 4, wherein The side surface of the structure body is provided with an exhaust hole corresponding to the position of the body second connecting groove, and the exhaust hole can exhaust after processing.

6. The handle is separately blow-molded structure according to claim 3, characterized in that, It also includes a positioning plate, the positioning plate is provided with a positioning plate positioning hole, a positioning plate connecting hole and a positioning plate fixing hole, and the side surface of the blow mold is provided with a mold positioning hole and a mold connecting hole; The mold positioning hole is provided with a positioning column, the positioning plate is positioned and arranged on the side surface of the blow mold through cooperation of the positioning column and the positioning plate positioning hole, and the positioning plate is connected and arranged on the blow mold through screw connection of the mold connecting hole and the positioning plate connecting hole. The structure body side is provided with a body fixing hole, the positioning plate fixing hole and the body fixing hole are connected through a screw, so that the structure body is connected and arranged on the positioning plate.

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