Disc head structure for easy assembly and method for assembling disc head structure

Abstract

The scheme discloses a disc head structure convenient to assemble, a spring pressing rod comprises a pressing rod body extending in a vertical direction, an upper end of the pressing rod body is provided with a pressing rod upper limiting sheet extending in a radial direction, a middle part of the pressing rod body is provided with a radial through installation pin long hole, a length direction of the installation pin long hole extends in a vertical direction, and a lower end of the pressing rod body is provided with a structure connected with a lower disc head.

Description

Technical Field

[0001] This invention relates to the field of leisure travel products, specifically a convenient assembly pan head structure and a method for assembling the pan head structure. Background Technology

[0002] Chinese patent document CN209163596U, published on July 26, 2019, discloses a tent frame with an assistive structure, including a coaxial upper plate head and a lower plate head, which are respectively hinged to the inner ends of a long bone and a short bone. The upper plate head is provided with an upper sleeve tube, and the lower plate head is provided with a lower sleeve tube. Both the upper and lower sleeve tubes are coaxial with the upper plate head and can be fitted together and axially limited. A sliding block that can slide up and down is coaxially provided inside the upper plate head. The sliding block abuts against the inner side of the upper end surface of the upper plate head through a helical spring. The outer wall of the sliding block has a long bone driving protrusion, and the corresponding protrusion at the inner end of the long bone has a long bone actuating protrusion. The long bone driving protrusion overlaps with the long bone actuating protrusion. The downward movement of the long bone driving protrusion can be converted into the rotational movement of the long bone around the hinge axis of the inner end through the overlapping relationship between the long bone driving protrusion and the long bone actuating protrusion. The beneficial effects of this invention are: it provides effective assistance to users in opening tent frames, eliminating usage limitations caused by physical strength. Traditional pan-head structures require the entire assembly process of the upper pan head, lower pan head, and spring to be completed in a single workstation, with no intermediate steps. Therefore, assemblers must be highly familiar with the assembly steps and proficient in the operation. The time and economic costs for companies to train skilled assembly operators are very high. From the perspective of industrial specialization, the more refined the specialization, the higher the efficiency. Therefore, companies have an incentive to break down a complex process into two or more simpler processes to improve specialized assembly efficiency, reduce assembly costs, and decrease reliance on skilled, complex assembly operators. With the aforementioned prior art, this goal is difficult to achieve because the processes cannot be divided. Furthermore, overly complex movements are not conducive to the automation of assembly operations. Summary of the Invention

[0003] To address the above issues, this invention provides a convenient assembly pan head structure that divides the traditional complex single-process assembly into a simple two-process assembly, facilitating further specialization, improving assembly efficiency, and creating conditions for migration to automated assembly. Furthermore, this solution also provides an assembly method for this pan head structure.

[0004] To achieve the first objective of the invention, the present invention adopts the following technical solution: a conveniently assembled pan head structure, comprising an upper pan head and a lower pan head coaxially arranged, a main spring receiving cavity coaxially provided on the upper pan head, the upper end of the main spring receiving cavity being open, and the lower end being provided with an upper pan head transverse partition, the main spring being disposed within the main spring receiving cavity.

[0005] It also includes a spring rod; the spring rod includes a rod body extending vertically, the upper end of the rod body is provided with a rod upper limit plate extending radially, the middle part of the rod body is provided with a radially penetrating mounting pin elongated hole, the length direction of the mounting pin elongated hole extends vertically, and the lower end of the rod body is provided with a structure for connecting with the lower plate head.

[0006] The upper plate head transverse diaphragm is provided with a pressure rod through hole that allows only the lower end of the pressure rod body to pass through;

[0007] The main spring is sleeved outside the spring rod body and installed together with the spring rod in the main spring receiving cavity;

[0008] The mounting pin elongated hole of the spring pressure rod is exposed below the upper pan head transverse diaphragm, and the mounting pin is inserted into the mounting pin elongated hole below the upper pan head transverse diaphragm;

[0009] The upper end of the main spring abuts against the upper limit plate of the pressure rod, and the lower end abuts against the transverse partition of the upper plate head.

[0010] Preferably, a mounting pin fixing groove is provided below the upper plate head transverse diaphragm, with the opening of the mounting pin fixing groove facing downward; the mounting pin is adapted to be located in the mounting pin fixing groove.

[0011] Preferably, the mounting pin fixing groove is provided with a snap-fit ​​structure, and the mounting pin is snapped in the mounting pin fixing groove.

[0012] Preferably, a lower plate head cover is also provided below the lower plate head; the lower plate head and the lower plate head cover are fastened together; the lower end of the pressure rod body is fixed to the lower plate head and / or the lower plate head cover.

[0013] Preferably, the lower end of the pressure bar body is provided with a radially penetrating lower pan head connecting pin through hole, and the lower pan head connecting pin is adapted to pass through the lower pan head connecting pin through hole.

[0014] Preferably, the lower plate head cover is provided with a recessed lower plate head connecting pin limiting groove, and the lower plate head connecting pin is fixed in the lower plate head connecting pin limiting groove.

[0015] Preferably, the bottom of the lower plate head cover is provided with a through-hole for hanging parts, through which the hanging parts are fixed to the bottom of the lower plate head cover.

[0016] Preferably, the hanging hole is straight, and the hanging part is Ω-shaped. The main body of the Ω-shaped part is interference-fitted through the straight hanging hole, and the two ends of the Ω-shaped part are twisted to be opposite to the extension direction of the straight hanging hole.

[0017] Preferably, an openable locking structure is provided between the upper and lower plate heads.

[0018] This design features a convenient assembly pan head structure, comprising an upper pan head and a lower pan head, both coaxially aligned. The upper pan head has a main spring receiving cavity, within which a main spring is installed. The spring force helps the upper and lower pan heads to approach each other with minimal effort, corresponding to effortless opening of the tent frame.

[0019] This design incorporates a novel component: the spring pressure rod. The spring pressure rod comprises a vertically extending pressure rod body, with a radially extending upper limit plate at its upper end. The pressure rod body is typically flat, and a mounting pin elongated hole runs through its thickness direction. The length of this hole extends vertically along the length of the pressure rod body, and the upper and lower start and end points and length values ​​of the mounting pin elongated hole correspond to the start and end points and distance changes of the upper and lower pan heads during opening and closing. The main spring is fitted onto the pressure rod body, and the upper limit plate abuts against the upper end of the main spring. The spring pressure rod and the main spring are installed together in the main spring receiving cavity. An upper pan head transverse partition is located at the lower end of the main spring receiving cavity, and its upper surface abuts against the lower end of the main spring. The upper pan head transverse diaphragm has a through hole for the lower end of the spring rod. When the spring rod is pressed down, the length of the main spring is compressed, allowing the lower end of the spring rod to pass through the through hole. Further pressing down on the spring rod until the mounting pin hole is exposed below the upper pan head transverse diaphragm allows the mounting pin to be inserted into the mounting pin hole below the upper pan head transverse diaphragm, securing the spring rod along with the main spring. At this point, the upper pan head, main spring, and spring rod are in a relatively fixed state, and this fixed state cannot be disrupted without special external force. Therefore, it is a stable state, allowing another assembler to assemble the lower pan head and other parts, thus fulfilling the requirement of dividing a complex process into two simpler processes.

[0020] The mounting pin fixing slot, with its opening facing downwards, is fixed below the transverse partition of the upper plate head and features a snap-fit ​​structure to ensure the mounting pin is securely engaged. This serves two purposes: firstly, to prevent the mounting pin from falling off during use; and secondly, to prevent the spring-loaded rod from rotating on its own.

[0021] The lower end of the pressure bar body is designed with a structure for fixing to the lower pan head, such as snap-fit, lap joint, threaded connection, etc. For easy assembly, this solution adopts a pin connection. The lower end of the bar body is provided with a lower pan head connecting pin through hole. When assembling the lower pan head and lower pan head cover, the lower pan head connecting pin is inserted into the lower pan head connecting pin through hole, and then the lower pan head and lower pan head cover are used to fix the lower pan head connecting pin.

[0022] The structure of the hanger and hanger hole in this design also differs from the traditional one. The hanger hole is a straight through hole located at the bottom of the lower plate head cover. The hanger is Ω-shaped, with the length of the Ω-shaped body slightly greater than the length of the straight section of the hanger hole. During assembly, pinch the widest part of the Ω-shaped body inward to reduce its width, allowing it to pass through the hanger hole. The two ends of the Ω-shaped body are then twisted in opposite directions to the straight section of the hanger hole, ideally at a 90° angle outward. This ensures that the hanger is positioned in all directions.

[0023] A lockable structure that can be opened and closed is provided between the upper and lower plate heads. Existing locking structures in the art can all be applied to this solution after adaptive modification.

[0024] To achieve the second objective of the invention, the present invention adopts the following technical solution:

[0025] The assembly method for the pan head structure as described above includes the following steps:

[0026] A. Place the main spring over the spring rod; then insert the main spring and spring rod together into the main spring receiving cavity.

[0027] B. Press the spring lever down to compress the length of the main spring, so that the lower end of the spring lever passes through the lever through hole until the lower end of the mounting pin hole is exposed below the upper plate head transverse diaphragm.

[0028] C, pass the mounting pin through the mounting pin elongated hole below the upper plate head transverse diaphragm;

[0029] D. Place the mounting pin in the mounting pin retaining groove;

[0030] E, place the lower plate, which is coaxial with the upper plate, below it;

[0031] F, pass the lower pan head connecting pin through the lower pan head connecting pin through hole;

[0032] G. Secure the lower plate head cap to the bottom of the lower plate head.

[0033] In this solution, once step D is completed, the product becomes a stable semi-finished product, which can be handed over to other workstations for subsequent assembly steps.

[0034] It should be noted that the steps of installing the long rod on the upper pan head, the short rod on the lower pan head, and the locking structure on the lower pan head are irrelevant to this solution and do not affect the steps of this solution, therefore they are not shown in this solution.

[0035] In summary, the beneficial effects of this invention are: dividing the traditional complex single process into a simple two-process, which is conducive to further specialization, helps to improve assembly efficiency, and provides conditions for migration to automated assembly. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the structure of the present invention in its retracted state;

[0037] Figure 2 This is a schematic diagram of the structure of the present invention in the open state;

[0038] Figure 3 This is an exploded view of the parts of the present invention.

[0039] Figure 4 This is a schematic diagram of the fit relationship of the main parts of the present invention (open state);

[0040] Figure 5 This is a schematic diagram of the upper part of the head;

[0041] Figure 6 yes Figure 5 AA section view;

[0042] Figure 7 It is a 3D view of the lower plate cap;

[0043] Figure 8 This is a 3D view of a spring compression rod.

[0044] Among them: 1 upper pan head, 11 upper pan head cover, 12 locking groove, 13 mounting pin fixing groove, 14 main spring receiving cavity, 15 upper pan head transverse partition, 16 pressure rod through hole;

[0045] 2. Lower pan head; 21. Lower pan head cover; 211. Hanging hole; 212. Lower pan head connecting pin limiting groove; 22. Hanging piece.

[0046] 3 locking buttons, 31 locking button springs.

[0047] 4. Spring pressure rod; 41. Pressure rod body; 42. Pressure rod upper limit plate; 43. Mounting pin elongated hole; 44. Lower pan head connecting pin through hole.

[0048] 5 main springs,

[0049] 6. Installation pins

[0050] 7. Lower pan head connecting pin,

[0051] 97 Fixing screw, 98 Short rod, 99 Long rod. Detailed Implementation

[0052] The present invention will now be further described with reference to the accompanying drawings and specific embodiments.

[0053] Example 1

[0054] like Figure 1 , Figure 2As shown, Embodiment 1 is a conveniently assembled pan head structure, including an upper pan head 1 and a lower pan head 2, which are coaxially arranged in the vertical direction. The inner end of the long rod 99 is hinged to the upper pan head 1, the inner end of the short rod 98 is hinged to the lower pan head 2, and the outer end is hinged to the middle of the long rod 99. The lower end of the lower pan head 2 is open, and the lower pan head cover 21 is fastened to the lower pan head 2 from bottom to top by fixing screws 97.

[0055] See Figure 8 As shown, the spring rod 4 includes a vertically extending flat rod, namely the rod body 41; the upper end of the rod body 41 is connected to a rod upper limit plate 42 that extends radially; the middle part of the rod body 41 is provided with a mounting pin elongated hole 43 through the thickness direction, and the length direction of the mounting pin elongated hole 43 is the vertical direction; the bottom of the rod body 41 is slightly thickened, and a lower plate head connecting pin through hole 44 is provided here through the thickness direction.

[0056] See Figure 3 and Figure 4 As shown, a main spring receiving cavity 14 is coaxially provided in the middle of the upper plate head 1. The upper end of the main spring receiving cavity 14 is open and can be sealed by the upper plate head cover 11. The lower end of the main spring receiving cavity 14 is provided with an upper plate head diaphragm 15. The upper plate head diaphragm 15 is provided with a pressure rod through hole 16 that allows only the pressure rod body 41 to pass through.

[0057] The main spring 5 is a helical spring, sleeved outside the pressure rod body 41. The spring pressure rod 4 and the main spring 5 are both located in the main spring receiving cavity 14. The upper end of the main spring 5 abuts against the upper limit plate 42 of the pressure rod, and the lower end abuts against the upper plate head transverse spacer 15. Pressing down on the spring pressure rod 4 compresses the length of the main spring 5, allowing the pressure rod body 41 to descend along the pressure rod through hole 16 until the lower end of the mounting pin elongation hole 43 is exposed below the upper plate head transverse spacer 15.

[0058] The mounting pin 6 is inserted into the mounting pin elongated hole 43 exposed below the upper plate head transverse diaphragm 15.

[0059] See Figure 5 and Figure 6 Above the upper plate, horizontally separated by 15 ( Figure 4 The lower part of the middle section is provided with a mounting pin fixing groove 13, which is a snap-fit ​​structure, and the mounting pin 6 can be snapped into it.

[0060] The lower pan head connecting pin through hole 44 is used to insert the lower pan head connecting pin 7. For example... Figure 7 As shown, the lower pan head cover 21 is provided with a lower pan head connecting pin limiting groove 212 to accommodate the lower pan head connecting pin 7, so that the installed lower pan head 2 is fixedly connected to the lower pan head connecting pin 7.

[0061] like Figure 7As shown, the lower plate cover 21 also has a through hanging hole 211 in the middle. The hanging hole 211 is a straight elongated hole. Correspondingly, the main body of the hanging piece 22 is Ω-shaped. The Ω-shaped main body can be interference-fitted through the straight part of the hanging hole 211. The two ends of the Ω-shaped part are twisted 90° to be perpendicular to the extension direction of the straight part of the hanging hole 211.

[0062] This head structure also includes a locking mechanism; see [link / reference] Figure 3 The locking mechanism in this example involves the engagement of the locking button 3, the locking button spring 31, and the locking groove 12. The locking structure described here is existing technology and will not be detailed further.

[0063] Example 2

[0064] Example 2 is an assembly method for the convenient pan head structure of Example 1, specifically including the following steps:

[0065] A. Place the main spring 5 around the spring rod 4; and then insert the main spring 5 and the spring rod 4 together into the main spring receiving cavity 14.

[0066] B. Press down on the spring rod 4 to compress the length of the main spring 5, so that the lower end of the spring rod 4 passes through the rod through hole 16 until the lower end of the mounting pin hole 43 is exposed below the upper plate head diaphragm 15.

[0067] C, below the upper plate head transverse 15, use mounting pin 6 to pass through mounting pin elongated hole 43;

[0068] D. Place the mounting pin 6 into the mounting pin fixing groove 13;

[0069] E, place the lower plate 2 coaxially below the upper plate 1;

[0070] F, pass the lower pan head connecting pin 7 through the lower pan head connecting pin through hole 44;

[0071] G. Secure the lower plate head cap 21 below the lower plate head 2.

[0072] Once step D is completed, the product becomes a stable semi-finished product and can be placed aside to wait for the next process. The lower plate head 2 will first be pre-installed with the locking structure, the lower plate head cover 21 will first be pre-installed with the hanging part 22, and then the three parts will be assembled together.

Claims

1. A conveniently assembled pan head structure, comprising an upper pan head (1) and a lower pan head (2) coaxially arranged, wherein a main spring receiving cavity (14) is coaxially provided on the upper pan head (1), the upper end of the main spring receiving cavity (14) is open, and the lower end is provided with an upper pan head transverse partition (15), and the main spring (5) is disposed in the main spring receiving cavity (14), characterized in that, It also includes a spring rod (4); the spring rod (4) includes a rod body (41) extending in the vertical direction, the upper end of the rod body (41) is provided with a rod upper limit plate (42) extending in the radial direction, the middle part of the rod body (41) is provided with a radially penetrating mounting pin elongated hole (43), the length direction of the mounting pin elongated hole (43) extends in the vertical direction, and the lower end of the rod body (41) is provided with a structure connected to the lower plate head (2); The upper plate head transverse partition (15) is provided with a pressure rod through hole (16) that allows only the lower end of the pressure rod body (41) to pass through. The main spring (5) is sleeved outside the pressure rod body (41) of the spring pressure rod (4) and is installed together with the spring pressure rod (4) in the main spring receiving cavity (14); The mounting pin elongated hole (43) of the spring pressure rod (4) is exposed below the upper pan head diaphragm (15), and the mounting pin (6) is inserted into the mounting pin elongated hole (43) below the upper pan head diaphragm (15); The upper end of the main spring (5) abuts against the upper limit plate (42) of the pressure rod, and the lower end abuts against the upper plate head transverse partition (15).

2. The conveniently assembled pan head structure according to claim 1, characterized in that, The lower part of the upper plate head transverse partition (15) is provided with a mounting pin fixing groove (13), and the opening of the mounting pin fixing groove (13) is downward; the mounting pin (6) is adapted to be located in the mounting pin fixing groove (13).

3. The conveniently assembled pan head structure according to claim 2, characterized in that, The mounting pin fixing groove (13) is provided with a snap-fit ​​structure, and the mounting pin (6) is snap-fitted in the mounting pin fixing groove (13).

4. A conveniently assembled pan head structure according to claim 2 or 3, characterized in that, The lower plate head (2) is also equipped with a lower plate head cover (21); the lower plate head (2) and the lower plate head cover (21) are fastened together; the lower end of the pressure rod body (41) is fixed to the lower plate head (2) and / or the lower plate head cover (21).

5. The conveniently assembled pan head structure according to claim 4, characterized in that, The lower end of the pressure bar body (41) is provided with a radially penetrating lower pan head connecting pin through hole (44), and the lower pan head connecting pin (7) is adapted to be inserted into the lower pan head connecting pin through hole (44).

6. The conveniently assembled pan head structure according to claim 5, characterized in that, The lower pan head cover (21) is provided with a recessed lower pan head connecting pin limiting groove (212), and the lower pan head connecting pin (7) is fixed in the lower pan head connecting pin limiting groove (212).

7. The conveniently assembled pan head structure according to claim 4, characterized in that, The bottom of the lower plate head cover (21) is provided with a through-hole (211) for hanging parts (22), and the hanging parts (22) are fixed to the bottom of the lower plate head cover (21) through the hanging holes (211).

8. The conveniently assembled pan head structure according to claim 7, characterized in that, The hanging hole (211) is straight, and the hanging piece (22) is Ω-shaped. The main body of the Ω-shaped piece passes through the straight hanging hole (211) with an interference fit. The two ends of the Ω-shaped piece are twisted to be opposite to the straight extension direction of the hanging hole (211).

9. A conveniently assembled pan head structure according to claim 1 or 2, characterized in that, A lockable structure that can be opened and closed is provided between the upper plate head (1) and the lower plate head (2).

10. The assembly method of the pan head structure as described in claim 5, characterized in that, Includes the following steps: A. Place the main spring (5) over the spring rod (4); and put the main spring (5) and the spring rod (4) into the main spring receiving cavity (14). B, press down the spring rod (4) to compress the length of the main spring (5) so that the lower end of the spring rod (4) passes through the rod through hole (16) until the lower end of the mounting pin hole (43) is exposed below the upper plate head diaphragm (15); C, pass the mounting pin (6) through the mounting pin elongated hole (43) below the upper plate head transverse diaphragm (15). D, Place the mounting pin (6) into the mounting pin fixing groove (13); E, place the lower plate (2) coaxially below the upper plate (1); F, insert the lower pan head connecting pin (7) into the lower pan head connecting pin through hole (44); G, fix the lower plate head cap (21) below the lower plate head (2).

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