Antifouling brake chamber
By incorporating a brush and a flap scraper inside the front cover of the brake chamber, the problem of dirt entering the brake chamber from the push rod surface is solved, achieving an effective anti-fouling effect and ensuring the stable use of the brake chamber.
Patent Information
- Application Number
- CN202423195491.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2025-10-24
- Estimated Expiration
- 2034-12-24
AI Technical Summary
The gap between the push rod of the existing brake chamber and the through hole of the front cover of the brake chamber makes it easy for dirt to adhere to the surface of the push rod. The dirt can easily enter the brake chamber and affect its stable use.
A brush and a flap are installed inside the front cover of the housing. The brush cleans the stains when the push rod retracts, and the rubber scraper at the front end of the flap further scrapes away the stains to prevent them from entering the housing.
The design of the brush and scraper effectively cleans the stains on the surface of the push rod, improves the anti-fouling effect of the brake chamber, and ensures its stable use.
Smart Images
Figure CN223469626U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to brake chamber field especially is related to a kind of anti-fouling brake chamber. BACKGROUND
[0002] Brake chamber is also called sub-pump, its function is to change the pressure of compressed air into the mechanical force of brake camshaft rotation, realizes brake action.
[0003] The gap between the push rod and the brake chamber front end cover through hole for the push rod will be generated in the existing brake chamber, in the process of push rod repeatedly linear extension and contraction, push rod is easy to long-term contact with external environment, leading to push rod surface is easy to attach a large number of dirt, and easy to bring dirt into brake chamber, for a long time, brake chamber content is easy to accumulate a large amount of dirt, not conducive to the stable use of brake chamber. SUMMARY
[0004] The utility model discloses to solve the problem that the above proposes, and therefore provides a kind of anti-fouling brake chamber, including shell, diaphragm, push rod and reset spring, the diaphragm is set in shell and is close to bottom position, the front end of the shell is provided with shell front end cover, two pivot shafts are set on the back cover surface of shell front end cover and two pivot shafts are parallelly arranged according to up-down positional relationship, the pivot shaft is installed with flap, the central position of shell front end cover is provided with through hole, the shell front end cover is set with notch, a plurality of brushes are set in the notch, the push rod passes through the through hole of shell front end cover, the rear end of push rod is connected with diaphragm, the reset spring is sleeved on push rod, the rear end of reset spring is resisted on diaphragm, the front end of reset spring is provided with the top plate of circular structure, the top plate is fixed at the position of push rod close to front end and is resisted on the back side of two flaps.
[0005] As preferred, the front end of the flap is provided with a wiper, the wiper is provided as an arc structure, and the wiper is made of rubber material.
[0006] As preferred, the rear end of the shell is provided with an air inlet.
[0007] The utility model has the advantages of reasonable structure and convenient use. The brushes provided in the shell front end cover can brush and clean the surface of the push rod when it is retracted, preventing dirt from entering the shell. The rubber wiper provided at the front end of the flap can further scrape the dirt on the push rod, further preventing dirt from entering the shell, and improving the anti-fouling effect of the brake chamber. BRIEF DESCRIPTION OF DRAWINGS
[0008] The utility model will be explained by example and with reference to the accompanying drawings, in which:
[0009] Figure 1 It is the whole structure schematic diagram of the utility model;
[0010] Figure 2 It is the whole structure schematic diagram of the utility model; Figure 1 Figure 1 It is the whole structure schematic diagram of the utility model;
[0011] Figure 3 It is the whole structure schematic diagram of the utility model; Figure 1 Figure 2 It is the whole structure schematic diagram of the utility model;
[0012] Figure 4 It is the flap front view structure schematic diagram of the utility model;
[0013] In the figure: 1, shell; 2, shell front end cover; 3, diaphragm; 4, air inlet; 5, reset spring; 6, push rod; 7, pivot; 8, flap; 9, brush; 10, top plate; 11, scraper. DETAILED DESCRIPTION
[0014] All features disclosed in this specification, and all steps of any methods or processes disclosed, may be combined in any combination, except combinations where at least some of the features and / or steps are mutually exclusive.
[0015] Any feature in the present specification, unless explicitly stated to the contrary, may be replaced by alternative features or equivalents having the same or a similar effect. That is, unless stated to the contrary, any feature of the application is one example only of a generic series of equivalent or similar features.
[0016] As shown in Figure 1 , 2 , 3, 4, an anti-fouling brake chamber, including shell 1, diaphragm 3, push rod 6 and reset spring 5, the diaphragm 3 is arranged in the shell 1 is close to the bottom position, the front end of the shell 1 is provided with shell front end cover 2, the rear cover surface of the shell front end cover 2 is provided with two pivot 7 and two pivot 7 is arranged in parallel according to the up-down position relationship, the pivot 7 is installed with flap 8, the center position of the shell front end cover 2 is provided with through hole, the shell front end cover 2 is provided with notch, the notch is provided with a plurality of brush 9 on the upper and lower sides, the push rod 6 passes through the through hole of the shell front end cover 2, the rear end of the push rod 6 is connected with the diaphragm 3, the reset spring 5 is sleeved on the push rod 6, the rear end of the reset spring 5 is abutted on the diaphragm 3, the front end of the reset spring 5 is provided with the top plate 10 of circular structure, the top plate 10 is fixed at the position close to the front end of the push rod 6 and is abutted on the rear side surface of two flaps 8.
[0017] The front end of the flap 8 is provided with scraper 11, the scraper 11 is arranged in arc structure, the scraper 11 is arranged as rubber material.
[0018] The rear end of the shell 1 is provided with an air inlet 4.
[0019] In use, when compressed air enters the shell 1 through the air inlet 4, the diaphragm 3 is extruded, and the diaphragm 3 moves forward in the shell 1, thereby driving the push rod 6 to move linearly forward. In this process, the top plate 10 also drives the flap 8 to move forward, so that the flap 8 is flipped upward around the rotating shaft 7 and pushes the brush 9 upward during the flipping process, thereby facilitating the smooth extension of the push rod 8. Conversely, after the compressed air stops entering the air inlet 4, the reset spring 5 drives the diaphragm 3 to reset, thereby driving the push rod 6 to move linearly backward. In this process, the top plate 10 also moves backward, and after losing the driving of the top plate 10, the flap 8 is flipped downward by the elastic force of the brush 9, thereby resetting the flap 8. Thus, the brush 9 and the scraper 11 on the flap 8 clean the rod body of the push rod 6 at the same time as the push rod 6 retracts, thereby enabling the push rod 6 to repeatedly move linearly.
[0020] The scraper 11 is arranged in an arc-shaped structure to better fit the rod body of the push rod 6, so as to facilitate the removal of stains.
[0021] The utility model discloses the beneficial effect is: the utility model discloses the rational structure design, convenient to use, through setting up the brush in the shell front end cover can be convenient to the push rod surface when retraction is brushed and cleaned, avoid the dirt into the shell, and the flap front end is provided with rubber scraper can further scrape the dirt on the push rod, further prevent the dirt from entering the shell, improve the brake chamber's dirt -proof effect.
[0022] The utility model discloses the beneficial effect is: the utility model discloses the rational structure design, convenient to use, through setting up the brush in the shell front end cover can be convenient to the push rod surface when retraction is brushed and cleaned, avoid the dirt into the shell, and the flap front end is provided with rubber scraper can further scrape the dirt on the push rod, further prevent the dirt from entering the shell, improve the brake chamber's dirt -proof effect.
[0022] The utility model discloses the beneficial effect is: the utility model discloses the rational structure design, convenient to use, through setting up the brush in the shell front end cover can be convenient to the push rod surface when retraction is brushed and cleaned, avoid the dirt into the shell, and the flap front end is provided with rubber scraper can further scrape the dirt on the push rod, further prevent the dirt from entering the shell, improve the brake chamber's dirt -proof effect.
Claims
1. An anti-fouling brake chamber comprising a housing (1), a diaphragm (3), a push rod (6) and a return spring (5), the diaphragm (3) being arranged in the housing (1) near the bottom, the front end of the housing (1) being provided with a housing front end cover (2), characterized in that, The rear cover surface of the shell front end cover (2) is provided with two rotating shafts (7) which are arranged in parallel in up-down position relationship, the rotating shafts (7) are provided with flip plates (8), the central position of the shell front end cover (2) is provided with a through hole, a notch is arranged in the shell front end cover (2), a plurality of brush (9) are arranged on the upper and lower sides of the notch, the push rod (6) passes through the through hole of the shell front end cover (2), the rear end of the push rod (6) is connected with the diaphragm (3), the reset spring (5) is sleeved on the push rod (6), the rear end of the reset spring (5) abuts against the diaphragm (3), the front end of the reset spring (5) is provided with a circular top plate (10), the top plate (10) is fixed at the position close to the front end of the push rod (6) and abuts against the rear side surface of the two flip plates (8).
2. A dirt-proof brake chamber as claimed in claim 1, characterized in that The front end of the flip plate (8) is provided with a scraping blade (11), the scraping blade (11) is arranged in an arc structure, and the scraping blade (11) is made of rubber material.
3. A dirt-proof brake chamber as defined in claim 1, wherein The rear end of the shell (1) is provided with an air inlet (4).