CN214617848U - Dustproof sealing part of handheld spraying machine - Google Patents

Abstract

The utility model provides a dustproof sealing element of a handheld spraying machine, which comprises a slip ring and a sealing ring, wherein the slip ring is matched with the sealing ring; the sliding ring is L-shaped, is made of ultra-high molecular polyethylene, and is internally provided with a first lip and a second lip; the sealing ring is an O-shaped ring and is made of rubber; the sealing performance of the dustproof sealing element is improved by adopting the sliding ring and the sealing ring which are made of the ultrahigh molecular polyethylene material, and by matching the sliding ring and the sealing ring and the compression amount of the sealing ring.

Description

Dustproof sealing part of handheld spraying machine

Technical Field

The utility model relates to a spraying equipment field, concretely relates to dustproof sealing member of handheld flush coater.

Background

The industrial-grade large spraying equipment has larger structural space, can be internally sealed step by applying a V-shaped combined type, and can achieve the optimal sealing effect, but the industrial-grade large spraying equipment has large volume, poor flexibility and lower practicability to scenes.

The improved handheld spraying machine integrates the motor, the booster pump, the spray gun and other structures, effectively solves the problems of large size and flexibility, but has limited sealing space due to the integration of the motor, the booster pump, the spray gun and other structures, and can only use a single sealing assembly for high-frequency high-pressure reciprocating sealing. Meanwhile, the handheld sprayer is too small, so that the power of the motor of the handheld sprayer is not higher than that of an industrial spraying device, and high requirements on the friction coefficient of a friction pair of the sealing element are provided in the selection of a sealing product.

Therefore, it is desirable to develop a dust seal for a hand held sprayer that meets the sealing performance and seal life requirements of the hand held sprayer.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve above-mentioned problem, provide a dustproof sealing spare of handheld flush coater, through sliding ring and the sealing washer that adopts the ultra high molecular polyethylene material to and the cooperation through sliding ring and sealing washer and the compression volume of sealing washer promote dustproof sealing spare's sealing performance.

In order to achieve the purpose, the utility model adopts the following technical scheme.

A dustproof sealing element of a handheld spraying machine comprises a sliding ring and a sealing ring, wherein the sliding ring is matched with the sealing ring; the sliding ring is L-shaped, is made of ultra-high molecular polyethylene, and is internally provided with a first lip and a second lip; the sealing ring is an O-shaped ring, and the sealing ring is made of rubber.

Further, the sliding ring comprises a first sliding ring and a second sliding ring, the diameter of the first sliding ring is smaller than that of the second sliding ring, and the sealing ring is arranged at the connection position of the first sliding ring and the second sliding ring.

Further, the first lip is arranged in the first sliding ring, and the second lip is arranged in the second sliding ring.

Further, the first slip ring has an outer diameter of 9.4 to 9.5 mm.

Further, the second slip ring has an outer diameter of 13.6 to 13.8 mm.

Further, the diameter of the sealing ring is 9.1 to 9.25 millimeters.

Further, the initial compression amount of the seal ring is 15% to 21%.

Further, the diameter of the first lip is 6.6 to 7 mm.

Further, the diameter of the second lip is 7.05 to 7.1 mm.

The utility model relates to a handheld flush coater's dust sealing's positive effect is:

the utility model discloses a sliding ring through adopting the ultra high molecular polyethylene material to and the cooperation through sliding ring and sealing washer and the compression volume of sealing washer promote dust sealing's sealing performance. The slip ring adopts the design of double lips, has not only strengthened sealing performance, has provided effectual support performance for the root of sealing member when pressure pulse moreover to do not stamped impact deformation.

Drawings

Fig. 1 is a schematic diagram provided by an embodiment of the present invention.

The reference numerals in the figures are respectively:

1. a slip ring; 2. a seal ring; 3. a first slip ring; 4. a second slip ring; 5. a second lip; 6. a first lip.

Detailed Description

The following description of the embodiments of the present invention will be provided with reference to the accompanying drawings, but it should be noted that: the described embodiments are not intended to limit the practice of the invention. All adopt the utility model discloses a similar structure and similar change all should go into the utility model discloses a protection scope. The following description of the embodiments refers to the accompanying drawings for illustrating the specific embodiments in which the invention may be practiced. In the embodiments, directional terms such as "up", "down", "front", "back", "left", "right", "top", "bottom", etc. refer to directions of the attached drawings only. Accordingly, the directional terms used are used for describing and understanding the present invention, and are not used for limiting the present invention.

See fig. 1. A dustproof sealing element of a handheld spraying machine comprises a sliding ring 1 and a sealing ring 2, wherein the sliding ring 1 is matched with the sealing ring 2; the slip ring 1 is L-shaped, and the slip ring 1 is made of ultra-high molecular polyethylene; be provided with first lip 6 and second lip 5 in the sliding ring 1, sealing washer 2 is "O" type circle, sealing washer 2 adopts the sealing washer of rubber material. High-pressure service environment is not considered in the design of the original dustproof sealing piece of the handheld spraying machine, and for meeting the high-pressure requirement, a sliding ring is designed into a double-lip structure, so that the sealing performance is enhanced, and effective supporting performance is provided for the root of the sealing piece during pressure pulse so as to prevent the sealing piece from being deformed due to impact without punching.

Because the dustproof sealing part is used for a long time in a high-speed reciprocating environment, in order to enable the dustproof sealing part of the handheld spraying machine to meet the dual requirements of wear resistance and sealing performance, the sliding ring 1 made of ultra-high molecular polyethylene and the sealing ring 2 made of rubber form combined sealing for coping, the L-shaped sliding ring 1 made of ultra-high molecular polyethylene can effectively cope with the wear in high-speed high-frequency reciprocating motion by means of the special wear resistance and low friction coefficient of the material, and in addition, the sealing performance of the handheld spraying machine is improved through elastic compensation of the sealing ring 2 made of rubber.

The slip ring 1 comprises a first slip ring 3 and a second slip ring 4, the diameter of the first slip ring 3 is smaller than that of the second slip ring 4, and the sealing ring 2 is arranged at the joint of the first slip ring 3 and the second slip ring 4. In this embodiment, the first slip ring 3 and the second slip ring 4 are integrally formed, and in specific implementation, the first slip ring 3 and the second slip ring 4 may be connected in a bonding or clamping manner. The diameter of the first slip ring 3 is 9.4 to 9.5 mm; in this embodiment, the diameter of the first slip ring 3 is 9.45 mm. The diameter of the second slip ring 4 is 13.6 to 13.8 mm; in this embodiment, the diameter of the second slip ring 4 is 13.7 mm. The diameter of the sealing ring 2 is 9.1-9.25 mm; in this embodiment, the diameter of the sealing ring 2 is 9.19 mm. The second lip 5 is disposed in the second slip ring 4, the diameter of the second lip 5 is 7.05 to 7.1 mm, and in this embodiment, the diameter of the second lip 5 is 7.08 mm. The first lip 6 is disposed in the first slip ring 3, and the diameter of the first lip 6 is 6.6 to 7 mm, in this embodiment, the diameter of the first lip 6 is 6.8 mm.

The initial compression of the sealing ring 2 is 15% to 21%. In the present embodiment, the initial compression amount of the seal ring 2 is 20%. Through a large amount of test accumulation experiences, the fact that good sealing performance can be obtained through larger initial holding and the compression amount of the sealing ring 2 is found, but the friction coefficient of a dustproof sealing part of the handheld spraying machine and a plunger rod is increased, so that the abrasion loss is increased, the whole service life is further influenced, therefore, simulation is combined on the basis of experience, the initial holding and the initial compression amount of the sealing ring 2 are modified, the holding and the initial compression amount are reduced as much as possible on the premise that sealing can be met, and finally the standard reaching of the sealing performance and the sealing service life is achieved.

The utility model relates to a dust sealing spare of handheld flush coater carries out the verification test of operating the computer through specific intermittent operation mode, and specific test condition is as follows: 1. the working time is as follows: stopping for 1 second every 5 seconds of operation, and stopping for 5 minutes every 30 minutes of cycle by taking the stop as the operation mode; 2. working pressure: the pressure of the sealing cavity is about 10 MPa; 3. working temperature: the maximum temperature is about 70 ℃; 4. system medium: latex paint and water. Finally the utility model relates to a handheld flush coater's dust sealing member has passed through the verification test of operating the computer, has reached the demand of actual use working life 20 hours.

Claims (9)

1. The dustproof sealing piece of the handheld spraying machine is characterized by comprising a sliding ring and a sealing ring, wherein the sliding ring is matched with the sealing ring; the sliding ring is L-shaped, is made of ultra-high molecular polyethylene, and is internally provided with a first lip and a second lip; the sealing ring is an O-shaped ring, and the sealing ring is made of rubber.

2. The hand held spray applicator dust seal of claim 1, wherein the slip ring comprises a first slip ring and a second slip ring, the first slip ring having a diameter less than a diameter of the second slip ring, the seal being disposed at a junction of the first slip ring and the second slip ring.

3. The dust seal of the hand held spray applicator of claim 2, wherein the first lip is disposed within the first slide ring and the second lip is disposed within the second slide ring.

4. The dust seal of the hand held sprayer of claim 2, wherein the first slip ring has an outer diameter of 9.4 to 9.5 millimeters.

5. The dust seal of the hand held sprayer of claim 2, wherein the second slip ring has an outer diameter of 13.6 to 13.8 millimeters.

6. The dust seal of the hand held spray applicator of claim 1, wherein the seal ring has a diameter of 9.1 to 9.25 mm.

7. The dust seal of the hand held sprayer of claim 1, wherein the initial compression of the seal ring is 15% to 21%.

8. The dust seal of the hand held sprayer of claim 1, wherein the diameter of the first lip is 6.6 to 7 millimeters.

9. The dust seal of the hand held spray applicator of claim 1, wherein the diameter of the second lip is 7.05 to 7.1 millimeters.

Images