Folding base

Abstract

A certain angle is formed between the extension directions of a first positioning groove and a second positioning groove, the first positioning groove and the second positioning groove are communicated with a mounting hole respectively, the first positioning groove and the second positioning groove are in transition connection through a sliding face, and a positioning shaft matched with the mounting hole is formed by bending the outer end of a positioning rod in cooperation with the first positioning groove and the second positioning groove. Each elastic pressing rod is matched with the first positioning groove and the second positioning groove through the positioning rod to be positioned with the shell in an overturning mode, so that the elastic pressing rods slide back and forth and are positioned in the first positioning groove and the second positioning groove under the action of external force according to the elasticity of the elastic pressing rods in the using process, no external auxiliary part is needed for positioning, and the positioning efficiency is improved. The overall structure of the base is simpler, the machining cost is greatly reduced, meanwhile, the assembling process is more convenient, and the assembling efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air pumping devices, in particular to a folding base. Background Art

[0002] Among the manually pressed air pumping devices, there are common air pumps, or a cylindrical air pumping device containing a base, a piston, a connecting rod, an upper pressing handle, etc. Since such an air pumping device needs to fix the base during air pumping to ensure the smooth progress of air pumping, exactly under such a condition of needing to be fixed, generally, an air pumping device including an air pump will design and extend a section of pressing plate or pressing rod on both sides of the base for easy fixing or manual stepping on it. When the pressing rod or pressing plate extended from the base of the existing air pumping device continues to flip, it needs to be positioned by an external auxiliary part, making the structure of the air pumping device more complex. This will not only increase the processing cost of the air pumping device, but also make its assembly process more troublesome, thus affecting its assembly efficiency. Therefore, it is necessary to further improve the structure of the existing air pumping device. Content of the Utility Model

[0003] In view of this, aiming at the deficiencies existing in the prior art, the main purpose of the utility model is to provide a folding base, which can effectively solve the problems of the complex structure of the base of the existing air pumping device, high processing cost and troublesome assembly process.

[0004] To achieve the above purpose, the utility model adopts the following technical scheme:

[0005] A folding base includes a shell and elastic pressing rods; movable grooves are equiangularly arranged around the shell, and a first positioning groove, a second positioning groove and a mounting hole are recessed inward at the bottom of each movable groove; the extending directions of the first positioning groove and the second positioning groove form a certain angle and are respectively communicated with the mounting hole, and the first positioning groove and the second positioning groove are connected by a sliding surface in a transitional manner; two elastic pressing rods are provided, and positioning rods cooperating with the first positioning groove and the second positioning groove are formed by bending at both ends of each elastic pressing rod, and positioning shafts cooperating with the mounting hole are formed by bending at the outer ends of the positioning rods. Each elastic pressing rod is reversibly positioned with the shell through the cooperation of the positioning rods with the first positioning groove and the second positioning groove respectively.

[0006] As a preferred scheme, the extending directions of the first positioning groove and the second positioning groove form a right angle, and the first positioning groove is arranged to extend up and down. The elastic pressing rod can be reversibly arranged in the movable groove by 90° through the cooperation of the positioning rods with the first positioning groove and the second positioning groove respectively.

[0007] As a preferred scheme, the positioning rod and the elastic pressing rod form a 90° angle. When the positioning rod cooperates with the second positioning groove for positioning, the elastic pressing rod extends vertically.

[0008] As a preferred solution, both the first positioning groove and the second positioning groove are semi-circular. Correspondingly, the cross-section of the positioning rod is circular.

[0009] As a preferred solution, the movable groove penetrates downward to the lower end face of the housing. After the elastic pressing rod is turned downward, the lower end of the elastic pressing rod is flush with the lower surface of the housing.

[0010] As a preferred solution, the upper end face of the housing is provided with a mounting seat for cooperating with an external air pumping device.

[0011] As a preferred solution, the first positioning groove and the second positioning groove are respectively located inside the side walls of the movable groove. When the positioning rod is positioned with the first positioning groove and the second positioning groove, it abuts against the corresponding side walls respectively.

[0012] As a preferred solution, the positioning shaft is hinged with the mounting hole.

[0013] As a preferred solution, the two elastic pressing rods are arranged symmetrically left and right.

[0014] As a preferred solution, the elastic pressing rod is made of elastic metal material.

[0015] Compared with the prior art, the present utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solutions:

[0016] By making the extension directions of the first positioning groove and the second positioning groove form a certain angle and be respectively communicated with the mounting hole, and the first positioning groove and the second positioning groove are transitionally connected through a sliding surface, and cooperating with the fact that the outer end of the positioning rod is bent to form a positioning shaft for cooperating with the mounting hole, each elastic pressing rod is respectively turned and positioned with the housing through the cooperation of the positioning rod with the first positioning groove and the second positioning groove, so that when in use, according to the elasticity of the elastic pressing rod itself, it slides back and forth under the action of an external force and is positioned in the first positioning groove and the second positioning groove. There is no need for external auxiliary components for positioning, making the overall structure of the base simpler, greatly reducing the processing cost, and at the same time, the assembly process is more convenient, effectively improving the assembly efficiency.

[0017] To more clearly illustrate the structural features and functions of the present utility model, the following will combine the drawings and specific embodiments to elaborate on the present utility model in detail. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is the first use state schematic diagram of the preferred embodiment of the present utility model;

[0019] Figure 2 is the second use state schematic diagram of the preferred embodiment of the present utility model;

[0020] Figure 3It is a schematic diagram of the disassembled state of the preferred embodiment of the present utility model.

[0021] Explanation of the attached drawing reference numerals:

[0022] 1. Housing; 1-1. First positioning groove; 1-2. Sliding surface; 1-3. Second positioning groove; 1-4. Mounting hole; 2. Elastic pressing rod; 2-1. Positioning rod; 2-2. Positioning shaft. Specific implementation manners

[0023] Please refer to Figures 1 to 3 as shown, which shows the specific structure of the preferred embodiment of the present utility model, including a housing 1 and an elastic pressing rod 2.

[0024] The periphery of the housing 1 is provided with activity grooves at equal angles. The bottom of each activity groove is recessed inwardly with a first positioning groove 1-1, a second positioning groove 1-3 and a mounting hole 1-4; the extending directions of the first positioning groove 1-1 and the second positioning groove 1-3 form a certain angle and are respectively communicated with the mounting hole 1-4, and the first positioning groove 1-1 and the second positioning groove 1-3 are connected by a sliding surface 1-2 for transition during the flipping process of the elastic pressing rod 2 to ensure that the flipping process of the elastic pressing rod 2 is smoother. In this embodiment, the included angle between the extending directions of the first positioning groove 1-1 and the second positioning groove 1-3 is a right angle, and the first positioning groove 1-1 is arranged to extend up and down. In other embodiments, the included angle between the first positioning groove 1-1 and the second positioning groove 1-3 can also be set at other angles as long as the functions of opening and folding can be realized after the elastic pressing rod 2 is flipped. The first positioning groove 1-1 and the second positioning groove 1-2 are both semi-circular. The activity groove penetrates downward to the lower end surface of the housing 1. The upper end surface of the housing 1 is provided with a mounting seat for cooperating with an external air injection device, and this mounting seat is used for mounting with the external air injection device. The first positioning groove 1-1 and the second positioning groove 1-3 are respectively located inside the side walls of the activity groove.

[0025] The elastic pressure rod 2 is provided in two sets. At both ends of each elastic pressure rod 2, positioning rods 2-1 that cooperate with the first positioning groove 1-1 and the second positioning groove 1-3 are formed by bending. At the outer end of the positioning rod 2-1, a positioning shaft 2-2 that cooperates with the mounting hole 1-4 is formed by bending. Each elastic pressure rod 2 is flip-positioned with the housing 1 through the cooperation of the positioning rod 2-1 with the first positioning groove 1-1 and the second positioning groove 1-3 respectively. In this embodiment, the elastic pressure rod 2 is arranged in the movable groove so as to be able to flip up and down by 90° through the cooperation of the positioning rod 2-1 with the first positioning groove 1-1 and the second positioning groove 1-3 respectively. The positioning rod 2-1 and the elastic pressure rod 2 are arranged at 90°. When the positioning rod 2-1 cooperates with the second positioning groove 1-3 for positioning, the elastic pressure rod 2 extends vertically, so that the elastic pressure rod 2 occupies less space after being flipped up and folded. The cross-section of the positioning rod 2-1 is circular. The cooperation between the circular positioning rod 2-1 and the semi-circular first positioning groove 1-1 and the second positioning groove 1-3 not only facilitates the positioning of the positioning rod 2-1, but also facilitates the positioning rod 2-1 to leave the first positioning groove 1-1 and the second positioning groove 1-3 under the action of an external force, making the use process more convenient. After the elastic pressure rod 2 is flipped down, the lower end of the elastic pressure rod 2 is flush with the lower surface of the housing 1. When the user presses the elastic pressure rod 2 downward with an external force to fix the base 1, no external force acts on the base 1, preventing the base 1 from being damaged by the external force. When the positioning rod 2-1 is positioned with the first positioning groove 1-1 and the second positioning groove 1-3, it abuts against the corresponding side walls respectively, so that the corresponding side walls can be used to further position the positioning rod 2-1, ensuring the structural stability between the elastic pressure rod 2 and the housing 1 during use. The positioning shaft 2-2 and the mounting hole 1-4 are hinged. In other embodiments, the positioning shaft 2-2 and the mounting hole 1-4 can also be further positioned for the flipped positioning shaft 2-2 through a certain positioning structure. The two elastic pressure rods 2 are arranged symmetrically left and right, so that the two elastic pressure rods 2 are both horizontally extended on the left and right sides of the housing 1 when opened. In other embodiments, the two elastic pressure rods 2 can also be arranged on adjacent sides of the housing, so that the extending directions of the two elastic pressure rods 2 are perpendicular to each other when opened, so as to meet the use in different scenarios. The elastic pressure rod 2 is made of elastic metal material. Similarly, the elastic pressure rod 2 can also be made of other elastic materials as long as it meets the structural strength during use.

[0026] The assembly process of this embodiment is described in detail as follows:

[0027] During assembly, first spread the two ends of one of the elastic pressure rods 2, insert the positioning shaft 2-2 at one end into the corresponding mounting hole 1-4, then insert the positioning shaft 2-2 at the other end into the corresponding mounting hole 1-4, and rotate the elastic pressure rod 2 to rotate the positioning rod 2-1 into the second positioning groove 1-3 for positioning, and then install the other elastic pressure rod 2 in the same way.

[0028] The working principle of this embodiment is described in detail as follows:

[0029] When in use, at this time the two elastic pressure rods 2 are in a folded state. The user only needs to apply a thrust to the elastic pressure rods 2. Then the positioning rods 2-1 will leave the second positioning groove 1-3 under the action of the external thrust. At this time, the two positioning rods 2-1 at both ends of the elastic pressure rods 2 expand outwards and slide towards the sliding surface 1-2. And under the continuous external thrust, they enter the first positioning groove 1-1 through the sliding surface 1-2, and the positioning rods 2-1 are positioned in the first positioning groove 1-1 under the elastic action of the elastic pressure rods 2 themselves. At this time, the two elastic pressure rods 2 are fully opened. When the use is completed, only by applying a reverse thrust to the elastic pressure rods 2 can the elastic pressure rods 2 be flipped upwards to reset, thus completing the folding process of the two elastic pressure rods 2.

[0030] The design focus of the present utility model lies in that: the extending directions of the first positioning groove and the second positioning groove form a certain angle and are respectively communicated with the mounting holes, and the first positioning groove and the second positioning groove are connected by a sliding surface in a transitional manner. And the outer ends of the positioning rods are bent to form positioning shafts that cooperate with the mounting holes. Each elastic pressure rod is respectively flipped and positioned with the housing through the cooperation of the positioning rod with the first positioning groove and the second positioning groove, so that when in use, according to the elasticity of the elastic pressure rod itself, it slides back and forth under the action of an external force and is positioned in the first positioning groove and the second positioning groove. There is no need for external auxiliary components for positioning, making the overall structure of the base simpler, greatly reducing the processing cost, and at the same time the assembly process is more convenient, effectively improving the assembly efficiency.

[0031] The above is only a preferred embodiment of the present utility model, and does not impose any limitation on the technical scope of the present utility model. Therefore, any minor modification, equivalent change and modification made to the above embodiments according to the technical essence of the present utility model still fall within the scope of the technical solution of the present utility model.

Claims

1. A foldable base, characterized in that: It includes a shell and an elastic pressure rod; movable grooves are arranged at equal angles on all sides of the shell, and the bottom of each movable groove is inwardly concave with a first positioning groove, a second positioning groove and a mounting hole; the extension directions of the first positioning groove and the second positioning groove form a certain angle and are respectively connected to the mounting holes, and the first positioning groove and the second positioning groove are transitionally connected by a sliding surface; the elastic pressure rod is set in two, and the two ends of each elastic pressure rod are bent to form a positioning rod that cooperates with the first positioning groove and the second positioning groove, and the outer end of the positioning rod is bent to form a positioning shaft that cooperates with the mounting hole, and each elastic pressure rod is flipped and positioned between the shell through the cooperation of the positioning rod with the first positioning groove and the second positioning groove respectively.

2. The foldable base according to claim 1, characterized in that: The first positioning groove and the second positioning groove extend in a right angle, and the first positioning groove is extended up and down. The elastic pressure rod can be turned up and down 90 degrees in the movable groove through the cooperation of the positioning rod with the first positioning groove and the second positioning groove respectively.

3. The foldable base according to claim 2, characterized in that: The positioning rod and the elastic pressure rod are arranged at 90 degrees. When the positioning rod is positioned in cooperation with the second positioning groove, the elastic pressure rod extends vertically.

4. The foldable base according to claim 1, characterized in that: The first positioning groove and the second positioning groove are both semicircular, and correspondingly, the cross section of the positioning rod is circular.

5. The foldable base according to claim 1, characterized in that: The movable groove penetrates downward to the lower end surface of the shell, and after the elastic pressure rod is turned downward, the lower end of the elastic pressure rod is flush with the lower surface of the shell.

6. The foldable base according to claim 1, characterized in that: The upper end surface of the shell is provided with a mounting seat matched with an external air pumping device.

7. The foldable base according to claim 1, characterized in that: The first positioning groove and the second positioning groove are respectively located at the inner side of the side wall of the movable groove. When the positioning rod is positioned with the first positioning groove and the second positioning groove, they respectively abut against the corresponding side walls.

8. The foldable base according to claim 1, characterized in that: The positioning shaft is hinged to the mounting hole.

9. The foldable base according to claim 1, characterized in that: The two elastic pressure rods are arranged symmetrically.

10. The foldable base according to claim 1, characterized in that: The elastic pressure rod is made of elastic metal material.

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