CN210397028U

CN210397028U - Efficient connecting rod for automobile inflating pump

Info

Publication number: CN210397028U
Application number: CN201921468130.2U
Authority: CN
Inventors: 杨超
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-09-05
Filing date: 2019-09-05
Publication date: 2020-04-24
Anticipated expiration: 2029-09-05

Abstract

The utility model discloses a high-efficiency connecting rod for an automobile inflating pump, which comprises a connecting rod main body, wherein one end of the connecting rod main body is a connecting shaft end connected with a camshaft, the other end of the connecting rod main body is a suction end, a mounting hole is arranged on the connecting shaft end, the suction end is provided with an air inlet, the suction end is provided with a hot melting column, a limiting pressing sheet is fixed on the hot melting column, a hot melting mounting hole matched with the hot melting column is arranged on the limiting pressing sheet, the hot melting mounting hole is sleeved on the corresponding hot melting column and is fixed with the hot melting column in a hot melting way, an air inlet elastic sheet is arranged between the limiting pressing sheet and the suction end of the connecting rod main body, the limiting pressing sheet and the connecting rod main body are fixed with a leather cup, the air inlet elastic sheet comprises a chassis, a convex block is convexly arranged on the chassis in the direction of the; the center of the limiting pressing sheet is convexly provided with a boss matched with the air exhaust hole of the air cylinder. The advantages are that: simple structure can improve the compression ratio, and it is efficient to aerify.

Description

Efficient connecting rod for automobile inflating pump

Technical Field

The utility model belongs to the technical field of the car pump manufacturing technique and specifically relates to indicate a high-efficient connecting rod for car pump.

Background

With the improvement of living standard of people, private cars have more and more entered families of people, and the tires have the phenomenon of air shortage after the cars are used for a long time, so that the tires need to be replenished with air; in the beginning, the tire air supplement needs to be carried out in an automobile maintenance shop or a 4S shop, and along with the birth of a vehicle-mounted inflator pump, the tire air supplement is also very convenient.

The automobile inflator pump is small in size and convenient to carry, can be stored in a trunk of an automobile, and achieves air supplement by driving the connecting rod to do reciprocating motion through the operation of the internal motor. In the existing connecting rod structure, a metal sheet is used as a valve block, the opening and closing of an air port are controlled by an elastic sheet at the middle part of the valve block, the movement of the metal elastic sheet can generate noise in the operation process of the inflator pump, in addition, the tightness between the metal elastic sheet and other injection molding pieces is difficult to guarantee, and the air leakage is easily caused to influence the inflation efficiency.

To above-mentioned problem, developed the silica gel (air) intake valve, the silica gel (air) intake valve adopts disc structure, and the silica gel (air) intake valve assembles between connecting rod main part and spacing preforming. In the subsequent production, air can remain in the vent holes of the limiting pressing sheets in the movement process of the connecting rods, so that the waste of air output is caused; in addition, the residual air in the vent holes is compressed to generate compression resistance, thereby affecting the pumping efficiency, and the structure can be further improved.

Disclosure of Invention

The utility model aims to solve the technical problem that to prior art's current situation, provide simple structure, it is fast to aerify, can improve a car that compresses the compression ratio and aerify pump with high-efficient connecting rod.

The utility model provides a technical scheme that above-mentioned technical problem adopted does:

a high-efficiency connecting rod for an automobile inflating pump comprises a connecting rod main body, wherein one end of the connecting rod main body is a connecting shaft end connected with a cam shaft, the other end of the connecting rod main body is a suction end, an assembly hole is formed in the connecting shaft end, an air inlet is formed in the suction end, a hot melting column is arranged at the suction end, a limiting pressing sheet is fixed on the hot melting column, a hot melting assembly hole matched with the hot melting column is formed in the limiting pressing sheet, the hot melting assembly hole is sleeved on the corresponding hot melting column and is fixed with the hot melting column in a hot melting mode, an air inlet elastic sheet is arranged between the limiting pressing sheet and the suction end of the connecting rod main body, a leather cup is fixed on the limiting pressing sheet and the connecting rod main body, the air inlet elastic sheet comprises a base plate, a convex block is convexly arranged on the base plate in the direction; the center of the limiting pressing sheet is convexly provided with a boss matched with the air exhaust hole of the air cylinder.

The optimized technical measures further comprise:

the center of the limiting pressing sheet is provided with a guide post which passes through the center of the air inlet elastic sheet and is inserted into an insertion hole in the center of the air suction end.

The middle part of the connecting rod main body is a connecting part which is composed of two connecting rods arranged in parallel and a supporting rod arranged between the two connecting rods at intervals.

And a bearing is arranged in the assembly hole.

The utility model relates to a high-efficient connecting rod for automobile inflating pump, simple structure, reasonable, it is through setting up the lug with the venthole looks adaptation on the spacing preforming on the shell fragment that admits air to the lug stretches into corresponding venthole, in the process of inflating, the lug extrudes the air in the venthole, and the boss of spacing preforming extrudes the air in the cylinder exhaust hole, avoids the air to remain and produces the compression resistance, can improve the compression ratio, improves efficiency of inflating and gas charging volume; the connecting rod main part and the limiting pressing sheet are fixed through hot melting of the hot melting column, fixing is simple and reliable, sealing performance can be improved, inflating efficiency is improved, and after the limiting pressing sheet is fixed through hot melting, the leather cup is firmly fixed, and the movement stroke of the air inlet elastic sheet is limited.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is an exploded schematic view of the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 2;

fig. 4 is a partial sectional structural view of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in fig. 1 to 4, the structure of the present invention is schematically illustrated,

wherein the reference numerals are: the connecting rod comprises a connecting rod main body 1, a connecting shaft end 11, an assembling hole 11a, an air suction end 12, an air inlet hole 12a, an inserting assembling hole 12b, a connecting rod 13, a supporting rod 14, a hot melting column 2, a limiting pressing sheet 3, a hot melting assembling hole 3a, a vent hole 3b, a boss 31, a guide column 32, an air inlet elastic sheet 4, a chassis 41, a bump 42, a leather cup 5 and a bearing 6.

As shown in figures 1 to 4 of the drawings,

a high-efficiency connecting rod for an automobile inflating pump comprises a connecting rod main body 1, wherein one end of the connecting rod main body 1 is a connecting shaft end 11 connected with a camshaft, the other end of the connecting rod main body is an air suction end 12, an assembling hole 11a is formed in the connecting shaft end 11, an air inlet hole 12a is formed in the air suction end 12, a hot melting column 2 is arranged at the air suction end 12, a limiting pressing sheet 3 is fixed on the hot melting column 2, a hot melting assembling hole 3a matched with the hot melting column 2 is formed in the limiting pressing sheet 3, the hot melting assembling hole 3a is sleeved on the corresponding hot melting column 2 and is fixed with the hot melting column 2 in a hot melting mode, an air inlet elastic sheet 4 is arranged between the limiting pressing sheet 3 and the air suction end 12 of the connecting rod main body 1, a leather cup 5 is fixed on the limiting pressing sheet 3 and the connecting rod main body 1, the air inlet elastic sheet 4 comprises a base plate 41, a convex block 42 is convexly, the projection 42 extends into the corresponding vent hole 3 b; the center of the limiting pressing sheet 3 is convexly provided with a boss 31 matched with the air exhaust hole of the air cylinder.

In the embodiment, the center of the limiting pressing sheet 3 is provided with a guide post 32, and the guide post 32 passes through the center of the air inlet spring 4 and is inserted into the insertion hole 12b in the center of the air suction end 12.

The guide post 32 plays a guiding role, and the air inlet elastic sheet 4 penetrates through the guide post 32 and moves along the direction of the guide post 32.

In the embodiment, the middle part of the connecting rod body 1 is a connecting part which is composed of two connecting rods 13 arranged in parallel and a supporting rod 14 arranged between the two connecting rods 13 at intervals.

In the embodiment, the bearing 6 is provided in the fitting hole 11 a.

During the assembly, the lug 42 aims at corresponding air vent 3b, will admit air shell fragment 4 cover on the guide post 32 at spacing preforming 3 center, leather cup 5 overlaps in the shell fragment 4 periphery that admits air, then aims at corresponding hot melt post 2 with spacing preforming 3's hot melt pilot hole 3a, assembles spacing preforming 3 on connecting rod main part 1, heats hot melt post 2 and makes it melt and form wholly with spacing preforming 3 after that to fix spacing preforming 3. The limiting pressing sheet 3 is fixed by hot melting, is fixed reliably, and can improve the sealing performance of the assembling hole.

The working principle is as follows:

the connecting shaft end 11 of the connecting rod is assembled on the cam shaft, the cam shaft is driven by the motor to rotate, the friction force can be reduced due to the arrangement of the bearing 6, the energy loss is reduced, and the operation flexibility of the inflator pump is improved. The camshaft drives the connecting rod and makes reciprocating motion, and along with the reciprocating motion of connecting rod, the shell fragment 4 that admits air moves about on guide post 32, and when the inlet opening side was kept away from to the shell fragment 4 that admits air, inlet port 12a opened, accomplishes and breathes in, and the air admission is held in 12, and when the inlet hole side was kept away from to the shell fragment 4 that admits air, 12 insides of end of breathing in switched on with the outlet duct through air vent 3b, realizes aerifing. The air inlet elastic sheet 4 of the utility model is provided with a lug 42 (the side of the lug 42 is an inclined plane) matched with the vent hole 3b, the lug 42 extends into the corresponding vent hole 3b (a gap is left between the outer wall of the lug 42 and the inner wall of the vent hole 3b), and the center of the limiting pressing sheet 3 is convexly provided with a boss 31 matched with the air cylinder vent hole; when the air pump is used for inflating, the lug 42 extends out of the vent hole 3b, the lug 42 extrudes air in the vent hole 3b, and the boss 31 of the limiting pressing sheet 3 extends into the exhaust hole of the air cylinder to extrude the air in the exhaust hole, so that the air residue is avoided to generate compression resistance, the compression ratio can be improved, and the inflating efficiency and the inflating quantity are improved. The convex block 42 extends into the corresponding vent hole 3b, and the upper part of the convex block 42 is always positioned in the vent hole 3b in the operation process of the equipment, so that the dislocation between the convex block 42 and the vent hole 3b caused by the mutual separation and rotation of the air inlet elastic sheet 4 and the limiting pressing sheet 3 is avoided.

While the preferred embodiments of the present invention have been illustrated, various changes and modifications may be made by those skilled in the art without departing from the scope of the present invention.

Claims

1. A high-efficiency connecting rod for an automobile air charging pump comprises a connecting rod main body (1), wherein one end of the connecting rod main body (1) is a connecting shaft end (11) connected with a cam shaft, the other end of the connecting rod main body is an air suction end (12), an assembly hole (11a) is formed in the connecting shaft end (11), an air inlet hole (12a) is formed in the air suction end (12), a hot melting column (2) is arranged at the air suction end (12), a limiting pressing sheet (3) is fixed on the hot melting column (2), a hot melting assembly hole (3a) matched with the hot melting column (2) is formed in the limiting pressing sheet (3), the hot melting assembly hole (3a) is sleeved on the corresponding hot melting column (2) and is fixed with the hot melting column (2) in a hot melting mode, an air inlet elastic sheet (4) is arranged between the limiting pressing sheet (3) and the air suction end (12) of the connecting rod main body (1), spacing preforming (3) with connecting rod main part (1) be fixed with leather cup (5), characterized by: the air inlet elastic sheet (4) comprises a base plate (41), a convex block (42) is convexly arranged on the base plate (41) towards the direction of the limiting pressing sheet, a vent hole (3b) matched with the convex block (42) is formed in the limiting pressing sheet (3), and the convex block (42) extends into the corresponding vent hole (3 b); the center of the limiting pressing sheet (3) is convexly provided with a boss (31) matched with the air cylinder exhaust hole.

2. The high-efficiency connecting rod for the automobile inflating pump as claimed in claim 1, wherein: the center of the limiting pressing sheet (3) is provided with a guide post (32), and the guide post (32) penetrates through the center of the air inlet elastic sheet (4) and is inserted into an insertion hole (12b) in the center of the air suction end (12).

3. The high-efficiency connecting rod for the automobile inflating pump as claimed in claim 2, wherein: the middle part of the connecting rod main body (1) is a connecting part which is composed of two connecting rods (13) arranged in parallel and a supporting rod (14) arranged between the two connecting rods (13) at intervals.

4. The high efficiency connecting rod for the automobile inflator pump according to claim 3, wherein: and a bearing (6) is arranged in the assembly hole (11 a).