Sealing diaphragm structure of pump machine of vehicle-mounted cleaning machine

Abstract

The utility model discloses a sealing diaphragm structure of a vehicle-mounted cleaning machine pump machine, which belongs to the technical field of vehicle-mounted cleaning machines and comprises a functional area and a fixed skirt edge, and a circle of continuous sealing rubber ring is arranged at the connecting position of the functional area and the fixed skirt edge. A water inlet end and a water outlet end are arranged in the functional area in a bilateral symmetry mode, a middle pillow is arranged in the middle of the interior of the functional area, a middle protrusion is arranged on the middle pillow, an annular pillow is arranged on the lower side of the middle pillow, and a lower protrusion is arranged on the annular pillow. The fixed skirt edge and the middle pillow structure are additionally arranged on an original sealing diaphragm, the fixed skirt edge is used for pressing and fixing the outer side of the sealing rubber ring, clamping and embedding the middle of the sealing rubber ring and clamping and embedding the interior of the middle pillow, and therefore multiple fixing and locking are achieved from inside to outside, and deviation of the sealing diaphragm after long-term use is effectively avoided; the waterproof sealing performance of the sealing diaphragm is better, and the sealing performance can be maintained for a longer time.

Description

Technical Field

[0001] The utility model belongs to the technical field of vehicle-mounted cleaning machines, and in particular relates to a sealing diaphragm structure of a pump of a vehicle-mounted cleaning machine. Background Art

[0002] The car-mounted cleaning machine is a small cleaning machine that can be carried with the car. It has the advantages of flexible use and easy portability. The car-mounted cleaning machine uses a pump to pressurize the water flow, sprays water mist through a spray gun, and then uses the water mist to wash the car.

[0003] The pump of the vehicle cleaning machine is the key structure of the cleaning machine. The performance of the pump directly determines the use effect of the vehicle cleaning machine. The sealing diaphragm of the pump is the structure inside the pump head of the pump, which is generally made of rubber. The sealing diaphragm can realize the flow diversion inside the pump head, and also serves as a sealing structure to prevent the pump from leaking. The current sealing diaphragms are directly pressed in through the cover plate. During use, the sealing diaphragm is subjected to long-term erosion by water flow, and the crimping is prone to loosening, resulting in a fitting gap, which causes the vehicle cleaning machine pump to leak. Utility Model Content

[0004] The utility model aims to provide a sealing diaphragm structure of a vehicle-mounted cleaning machine pump to solve the problems of the existing coupling during use proposed in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sealing diaphragm structure of a vehicle-mounted cleaning machine pump, comprising a functional area and a fixed skirt, a continuous circle of sealing rubber rings is arranged at the connecting position of the functional area and the fixed skirt, a water inlet end and a water outlet end are symmetrically arranged in the functional area, a middle pillow is arranged in the middle position inside the functional area, a middle protrusion is arranged on the middle pillow, an annular pillow is arranged on the lower side of the middle pillow, and a lower protrusion is arranged on the annular pillow.

[0006] Preferably, a plurality of mounting holes are provided on the fixed skirt, and the thickness of the fixed skirt is less than 0.1 mm.

[0007] Preferably, the functional area, the fixed skirt and the sealing rubber ring are all made of rubber material.

[0008] Preferably, the sealing diaphragm is fixed by a cover plate, a middle groove adapted to the middle pillow is provided in the middle of the cover plate, and the middle pillow is correspondingly snap-fitted with the middle groove.

[0009] Preferably, a sealing groove adapted to the sealing rubber ring is provided on the cover plate, and the sealing groove and the sealing rubber ring.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] A fixed skirt and a middle pillow structure are added to the original sealing diaphragm, wherein the fixed skirt provides pressure fixation for the outer side of the sealing rubber ring, the middle of the sealing rubber ring is embedded, and the inside of the middle pillow is embedded, so that it is fixed and locked from the inside to the outside in multiple ways, thereby effectively avoiding the displacement of the sealing diaphragm under long-term use, so that the sealing diaphragm has better waterproof sealing and the sealing performance is maintained longer. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the existing sealing diaphragm structure;

[0014] Figure 3 It is a schematic diagram of the cover plate structure that is press-fitted with the utility model.

[0015] In the figure: 1. Fixed skirt; 2. Sealing rubber ring; 3. Functional area; 4. Water inlet end; 5. Water outlet end; 6. Middle pillow; 7. Middle protrusion; 8. Ring pillow; 9. Lower protrusion; 10. Installation hole; 11. Cover plate; 12. Middle groove. DETAILED DESCRIPTION

[0016] 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.

[0017] Reference Figure 1-3 A sealing diaphragm structure of a vehicle-mounted cleaning machine pump comprises a functional area 3 and a fixed skirt 1. A continuous sealing rubber ring 2 is arranged at the connecting position of the functional area 3 and the fixed skirt 1. A water inlet end 4 and a water outlet end 5 are symmetrically arranged in the functional area 3. A middle pillow 6 is arranged in the middle position inside the functional area 3. A middle protrusion 7 is arranged on the middle pillow 6. A ring pillow 8 is arranged on the lower side of the middle pillow 6. A lower protrusion 9 is arranged on the ring pillow 8.

[0018] like Figure 1 The sealing diaphragm structure is shown in the figure. The sealing diaphragm is fixed by crimping the cover plate 11. Water flows through the sealing diaphragm. Since the sealing diaphragm itself is fixed by crimping the cover plate 11, the water flow will always impact the sealing diaphragm during the use of the pump. Over time, it is easy to cause a gap between the sealing diaphragm and the cover plate 11, thereby causing the sealing performance of the pump to decrease and water seepage and leakage to occur. The sealing diaphragm structure of the technical solution is as follows Figure 2As shown, the sealing diaphragm includes a functional area 3, a sealing rubber ring 2 and a fixed skirt 1. When the cover plate 11 is pressed and installed on the sealing diaphragm, it is not only fixed by the card embedding of the groove body, but also the cover plate 11 is directly pressed against the fixed skirt 1 structure of the sealing diaphragm. The pressing area of ​​the cover plate 11 is larger, the fixing stability is better, and the sealing effect and sealing durability are better. At the same time, a middle pillow 6 is also arranged in the middle position of the functional area 3 of the sealing diaphragm. The middle pillow 6 is equipped with a middle protrusion 7. When the cover plate 11 is crimped, the middle pillow 6 serves as a central positioning point. On the one hand, it can support the middle part and reduce the deformation of the sealing diaphragm. On the other hand, it can cooperate with the card embedding of the cover plate 11 to lock the sealing diaphragm more tightly, which can reduce the loosening of the sealing diaphragm and improve the waterproof performance of the sealing diaphragm.

[0019] Furthermore, a plurality of mounting holes 10 are provided on the fixed skirt 1, and the thickness of the fixed skirt 1 is less than 0.1 mm.

[0020] The fixed skirt 1 is directly pressed by the cover plate 11, and the fixing bolts pass through the mounting hole 10 of the cover plate 11 and the mounting hole 10 of the fixed skirt 1 in sequence, and finally the fixing is achieved. The thickness of the fixed skirt 1 is very thin and will not affect the fixed installation of the cover plate 11. The sealing diaphragm can be positioned and locked by the fixed lip and the mounting hole 10, which can prevent the sealing diaphragm from shifting during use. The sealing diaphragm is more stable in use and the sealing performance is maintained longer.

[0021] Furthermore, the functional area 3, the fixed skirt 1 and the sealing rubber ring 2 are all made of rubber material.

[0022] Through this technical solution, the functional area 3, the fixed skirt 1 and the sealing rubber ring 2 are all made of rubber material, which ensures the waterproof sealing performance of the sealing diaphragm. The rubber material has stable performance and can effectively ensure the service life of the sealing diaphragm.

[0023] Furthermore, the sealing diaphragm is fixed by the cover plate 11 , and a middle groove 12 adapted to the middle pillow 6 is provided in the middle of the cover plate 11 , and the middle pillow 6 is correspondingly snap-fitted with the middle groove 12 .

[0024] The cover plate 11 is used to crimp and fix the sealing diaphragm, and stably press the sealing diaphragm onto the pump. A middle groove 12 adapted to the middle pillow 6 is provided in the middle of the cover plate 11. The middle pillow 6 and the middle protrusion 7 are provided in the middle of the sealing diaphragm. The middle pillow 6 is just inserted into the middle groove 12, thereby achieving fixed positioning in the middle of the sealing diaphragm. At the same time, it also serves as a middle support for the sealing diaphragm, which can effectively prevent the sealing diaphragm from shifting and achieve a better use effect.

[0025] Furthermore, a sealing groove adapted to the sealing rubber ring 2 is provided on the cover plate 11 , and the sealing groove and the sealing rubber ring 2 are butt-jointed and clamped.

[0026] Working principle: a fixed skirt 1 and a middle pillow 6 structure are added to the original sealing diaphragm, and the original sealing rubber ring 2 is fixed by embedding into a fixed skirt 1, a sealing rubber ring 2 and a middle pillow 6. The fixed skirt 1 provides pressure fixation for the outer side of the sealing rubber ring 2, the middle part of the sealing rubber ring 2 is embedded, and the middle pillow 6 is embedded inside, so that the sealing diaphragm is locked from the inside to the outside through multiple fixations, thereby effectively avoiding the displacement of the sealing diaphragm under long-term use, so that the sealing diaphragm has better waterproof sealing and the sealing performance is maintained longer; the middle pillow 6 structure can provide support in the middle part of the sealing diaphragm, so that the sealing diaphragm has a longer service life and a better use effect.

[0027] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0028] In the description of the present invention, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In the present invention, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine different embodiments or examples described in the present invention and features of different embodiments or examples without contradiction.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sealing diaphragm structure for a vehicle-mounted cleaning machine pump, characterized in that: It includes a functional area and a fixed skirt, a continuous sealing rubber ring is arranged at the connection position between the functional area and the fixed skirt, a water inlet end and a water outlet end are symmetrically arranged in the functional area, a middle pillow is arranged in the middle position inside the functional area, a middle protrusion is arranged on the middle pillow, an annular pillow is arranged on the lower side of the middle pillow, and a lower protrusion is arranged on the annular pillow.

2. The sealing diaphragm structure of a vehicle-mounted cleaning machine pump according to claim 1, characterized in that: The fixed skirt is provided with a plurality of mounting holes, and the thickness of the fixed skirt is less than 0.1 mm.

3. The sealing diaphragm structure of a vehicle-mounted cleaning machine pump according to claim 1, characterized in that: The functional area, the fixed skirt and the sealing rubber ring are all made of rubber material.

4. The sealing diaphragm structure of a vehicle-mounted cleaning machine pump according to claim 1, characterized in that: The sealing diaphragm is fixed by a cover plate, a middle groove adapted to the middle pillow is arranged in the middle of the cover plate, and the middle pillow is correspondingly engaged with the middle groove.

5. The sealing diaphragm structure of a vehicle-mounted cleaning machine pump according to claim 4, characterized in that: The cover plate is provided with a sealing groove adapted to the sealing rubber ring. The sealing groove and the sealing rubber ring.

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