Expansion tank with high sealing performance and riveted structure

Abstract

The utility model discloses a high leakproofness riveting structure expansion water tank relates to expansion water tank two part connection field, including two expansion water tank, the edge of the butt joint face of two expansion water tank is all integrally molded with the outward protruding connecting plate, the two connecting plate passes through the riveting mechanism fixed connection, the riveting mechanism passes through the two expansion water tank, and the riveting mechanism passes through the two expansion water tank. The connecting plate is provided with a round hole for the riveting mechanism to insert; the riveting mechanism comprises a connecting sleeve inserted into the inner wall of the round hole, and a limiting head is integrally formed at the top end of the connecting sleeve. By arranging the vertical groove and the connecting plate, when the riveting mechanism does not effectively deform and generates a fixed connection effect, a tool can be used for being in butt joint with the connecting plate, the connecting plate is pried through the tool to promote the connecting sleeve to reset, in the process, due to the arrangement of the vertical groove, resetting of the connecting sleeve becomes simple, and the riveting efficiency is improved. The riveting mechanism does not need to be removed in a cutting mode, and therefore the problem that products are scrapped due to the cutting mode is avoided.

Description

Technical Field

[0001] The utility model relates to the field of connection of two parts of an expansion water tank, in particular to an expansion water tank with a high sealing riveted structure. Background Art

[0002] The riveting mechanism is a tool that fixes two parts together, which has the effect of stabilizing the connection.

[0003] In the prior art, when the riveting mechanism has not been completely fixed, the force-bearing rod may break due to the pulling force. At this time, the connecting sleeve has been partially deformed. If it needs to be removed, a cutting machine is required to cut the riveting mechanism for separation. However, this method is prone to damage to the surface of the expansion water tank by the cutting machine, thereby causing the product to be scrapped. Utility Model Content

[0004] The purpose of the utility model is to provide an expansion water tank with a high sealing riveted structure in order to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an expansion water tank with a high sealing riveted structure, comprising two expansion water tanks, the edges of the two expansion water tanks' docking surfaces are integrally formed with docking plates protruding outward, the two docking plates are fixedly connected by a riveting mechanism, and the docking plates are provided with a circular hole for inserting the riveting mechanism;

[0006] The riveting mechanism includes a connecting sleeve inserted into the inner wall of the circular hole, a limiting head is integrally formed at the top of the connecting sleeve, a center hole is opened at the center of the limiting head and the connecting sleeve, a force-bearing rod is sleeved on the inner wall of the center hole, and a pressure plate is integrally formed at the bottom end of the force-bearing rod.

[0007] As a further solution of the utility model: the riveting mechanism also includes a vertical groove opened at the bottom end of the connecting sleeve and recessed upward, the number of the vertical grooves is multiple, and the multiple vertical grooves are evenly distributed in the circumferential direction.

[0008] As a further solution of the utility model: the riveting mechanism also includes a connecting plate integrally formed below the outer wall of the connecting sleeve, and a through hole distributed along the extension direction of the connecting plate is opened at the center of the connecting plate, and one connecting plate is located between the two vertical grooves.

[0009] As a further solution of the utility model: a pressure-bearing inclined surface inclined outward is formed below the inner wall of the connecting sleeve.

[0010] As a further solution of the utility model: an annular groove is formed at the center of the force-bearing rod.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. By setting the vertical groove and the connecting plate, when the riveting mechanism has not yet effectively deformed to produce a fixed connection effect, a tool can be used to dock with the connecting plate, and the connecting plate can be pried by the tool to reset the connecting sleeve. In this process, due to the opening of the vertical groove, the reset of the connecting sleeve becomes simple, and there is no need to remove the riveting mechanism by cutting, thereby avoiding the problem of product scrapping due to cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model;

[0014] Figure 2 It is a structural schematic diagram of the riveting mechanism of the utility model;

[0015] Figure 3 It is a schematic diagram of the internal structure of the riveting mechanism of the utility model.

[0016] In the figure: 1. expansion tank; 2. docking plate; 3. connecting sleeve; 4. limit head; 5. center hole; 6. vertical groove; 7. connecting plate; 8. pressure plate; 9. pressure inclined surface; 10. annular groove; 11. force rod. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1 to Figure 3 In the embodiment of the utility model, a high-sealing riveted structure expansion water tank includes two expansion water tanks 1, the edges of the butt joint surfaces of the two expansion water tanks 1 are integrally formed with a butt joint plate 2 protruding outward, the two butt joint plates 2 are fixedly connected by a riveting mechanism, and a circular hole for inserting the riveting mechanism is opened on the butt joint plate 2;

[0019] The riveting mechanism includes a connecting sleeve 3 inserted into the inner wall of the circular hole, a limiting head 4 is integrally formed at the top of the connecting sleeve 3, a center hole 5 is opened at the center of the limiting head 4 and the connecting sleeve 3, a force-bearing rod 11 is sleeved on the inner wall of the center hole 5, and a pressure plate 8 is integrally formed at the bottom end of the force-bearing rod 11.

[0020] In this embodiment: two expansion water tanks 1 that can be docked are formed by injection molding, and then the two halves of the expansion water tanks 1 are docked using a riveting mechanism to form a complete expansion water tank 1. First, the connecting sleeve 3 is inserted into the circular hole, and then the force-bearing rod 11 is inserted from the bottom end of the center hole 5 and penetrates to the top of the limit head 4. Then, the force-bearing rod 11 is pulled up using a tool, and the force-bearing rod 11 drives the pressure plate 8 to squeeze the inner bottom end of the connecting sleeve 3, causing the connecting sleeve 3 to expand and deform outward, and squeeze the docking plate 2 below. The position of the deformed connecting sleeve 3 and the limit head 4 form a limit for the upper and lower docking plates 2, thereby realizing the riveting function.

[0021] Please refer to Figure 2 and Figure 3 The riveting mechanism also includes a vertical groove 6 which is opened at the bottom end of the connecting sleeve 3 and is recessed upward. There are multiple vertical grooves 6, and the multiple vertical grooves 6 are evenly distributed in the circumferential direction.

[0022] In this embodiment, the vertical groove 6 is formed to divide the lower part of the connecting sleeve 3 into several equal parts. When the pressing plate 8 is pressed, the connecting sleeve 3 divided into several parts deforms respectively, and the force required is smaller than that of the overall connecting sleeve 3.

[0023] Please refer to Figure 3 The riveting mechanism also includes a connecting plate 7 integrally formed below the outer wall of the connecting sleeve 3 , and a through hole distributed along the extending direction of the connecting plate 7 is opened at the center of the connecting plate 7 , and one connecting plate 7 is located between the two vertical grooves 6 .

[0024] In this embodiment: during the riveting process, it usually happens that the deformed part of the connecting sleeve 3 has not yet formed effective extrusion with the lower docking plate 2, and the force-bearing rod 11 breaks. At this time, the riveting is not stable. At this time, the riveting mechanism needs to be dismantled and re-rivet. By using a tool to insert the through hole and labor the connecting plate 7, the connecting plate 7 drives the deformed part of the connecting sleeve 3 to be reset, and manual resetting and removal can be achieved without cutting and removal, thereby avoiding damage to the expansion water tank 1.

[0025] Please refer to Figure 3 A pressure-bearing inclined surface 9 inclined outward is formed at the lower part of the inner wall of the connecting sleeve 3 .

[0026] In this embodiment, when the pressing plate 8 is forced to move upward, the pressure inclined surface 9 contacts and squeezes the top surface of the pressing plate 8, which can better promote the deformation of the deformation part of the connecting sleeve 3.

[0027] Please refer to Figure 3 An annular groove 10 is formed at the center of the force-bearing rod 11 .

[0028] In this embodiment, the provision of the annular groove 10 can make the stressed rod 11 partially thinner. After the connecting sleeve 3 is completely deformed by the force, the force applied to the stressed rod 11 can cause the stressed rod 11 to break at the position of the annular groove 10 .

[0029] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An expansion water tank with a high sealing riveted structure, comprising two expansion water tanks (1), wherein the edges of the butt joint surfaces of the two expansion water tanks (1) are integrally formed with a butt joint plate (2) protruding outward, characterized in that: The two butt joint plates (2) are fixedly connected by a riveting mechanism, and a circular hole for inserting the riveting mechanism is provided on the butt joint plates (2); The riveting mechanism comprises a connecting sleeve (3) inserted into the inner wall of the circular hole, a limiting head (4) is integrally formed at the top of the connecting sleeve (3), a center hole (5) is opened at the center of the limiting head (4) and the connecting sleeve (3), a force-bearing rod (11) is sleeved on the inner wall of the center hole (5), and a pressure plate (8) is integrally formed at the bottom end of the force-bearing rod (11).

2. The high-sealing riveted structure expansion water tank according to claim 1, characterized in that: The riveting mechanism further comprises a vertical groove (6) which is formed at the bottom end of the connecting sleeve (3) and is recessed upwards. The number of the vertical grooves (6) is multiple, and the multiple vertical grooves (6) are evenly distributed in the circumferential direction.

3. The high-sealing riveted structure expansion water tank according to claim 2, characterized in that: The riveting mechanism further comprises a connecting plate (7) integrally formed below the outer wall of the connecting sleeve (3), wherein a through hole distributed along the extension direction of the connecting plate (7) is provided at the center of the connecting plate (7), and one connecting plate (7) is located between the two vertical grooves (6).

4. The high-sealing riveted structure expansion water tank according to claim 3, characterized in that: A pressure-bearing inclined surface (9) inclined outward is formed at the lower part of the inner wall of the connecting sleeve (3).

5. The high-sealing riveted structure expansion water tank according to claim 1, characterized in that: An annular groove (10) is formed at the center of the force-bearing rod (11).

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