CN2504422Y

CN2504422Y - Three-position four-way valve

Info

Publication number: CN2504422Y
Application number: CN 01257335
Authority: CN
Inventors: 刘峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-11-16
Filing date: 2001-11-16
Publication date: 2002-08-07
Anticipated expiration: 2011-11-16

Abstract

The utility model relates to a three-position four-way electromagnetic valve, belonging to a category of a fluid operation system, the three-position four-way electromagnetic valve comprises four cut-off sections controlled by electromagnets arranged on a valve body, the four cut-off sections are divided into two groups which are arranged on the valve body, the power supplies of the electromagnets at the same upper sides and the same lower sides of the valve body are connected in parallel, and simultaneously opened and closed; each cut-off section consists of a pressure spring, a valve core with conicity, a seal gasket, a guide sleeve, a packing ring, screw caps, and a composite seal gasket, a through hole is provided on the valve core, the electromagnet position aligning to the valve core with conicity is provided with a rear chamber, the through hole communicates with a front chamber and the rear chamber; the front chamber of the cut-off section 15 and the front chamber of the cut-off section 9 both communicate with a mouth A, the middle chamber of the cut-off section 15 communicates with a mouth D, the middle chamber of the cut-off section 9 communicates with a mouth C, the middle chamber of the cut-off section 14 and the middle chamber of the cut-off section 11 both communicate with a mouth B, the middle chamber of the cut-off section 15 communicates with the front chamber of the cut-off section 11, the middle chamber of the cut-off section 9 communicates with the front chamber of the cut-off section 14. The utility model has the beneficial effects that the inner leakage problem doe not occur completely, the service life can be prolonged, and the utility model is not limited by the pressure, thereby being suitable for controlling gas and liquid.

Description

Three-position four-way valve

Technical field

The utility model relates to a kind of three-position four-way valve, belongs to the fluid operating system class.

Background technique

Existing three position four-way electromagnetic valve all adopts the guiding valve form, the defective of revealing in existing inevitably.

Technology contents

The purpose of this utility model provides the three position four-way electromagnetic valve of a kind of employing by sealing, to stop internal leakage, the mode that realizes above-mentioned purpose is that four are installed on the valve body by portion is integrated, adopt the tapering spool, its beneficial effect is that it does not have interior leakage problem fully, can reduce corresponding machining accuracy, increases the service life, and the restriction that is not stressed is applicable to gas, hydraulic control system.

Description of drawings

Accompanying drawing 1 of the present utility model is its structural representation, and Fig. 2 is another section sectional view of Fig. 1, is numbered stage clip 1 among the figure, spool 2, sealing gasket 3, guide pin bushing 4, seal ring 5, nut 6, combination seal pad 7, electromagnet 8, by

portion

9,11,14,15, back cavity 10, lumen 12, ante-chamber 13, valve body 16, import A, outlet B, two-port C, the D of connection gas, fluid cylinder.

Mode of execution

Embodiment of the present utility model is as follows, below in conjunction with description of drawings it, the utility model comprises four

portions

9,11,14,15 of electromagnet 8 controls that are installed on the valve body 17, four ones are stop valve, dividing two groups is installed on the valve body 17, upper and lower power supply parallel connection on the valve body with electromagnet on one side, open and close simultaneously; Each ends portion by stage clip 1, band tapering spool 2, sealing gasket 3, and guide pin bushing 4, seal ring 5, nut 6, combination seal pad 7 is formed, and on the spool 2 through hole is arranged, and electromagnet faces band tapering spool 2 places back cavity 10, and through hole is communicated with ante-chamber 13 and back cavity 10; End the ante-chamber of portion 15 and end the ante-chamber 13 common A mouths of portion 9, the logical D mouth of lumen by portion 15, lumen 12 logical C mouths by portion 9, lumen and the common B mouth of lumen that ends portion 11 by portion 14, lumen by portion 15 communicates with the ante-chamber that ends portion 11, and the lumen 12 that ends portion 9 communicates with the ante-chamber that ends portion 14.Its working method is electromagnet energising on one side, then another side is in off-position, as switching on, open simultaneously with electromagnet by portion 9 by portion 15, fluid enters from the A mouth, through entering an end of clutch release slave cylinder by portion's 9 ante-chambers 13, lumen 12, C mouth, and the backflow of the clutch release slave cylinder the other end then enters from the D mouth, through by portion's 9 lumens 12, discharge by ante-chamber 13, lumen 12, the B mouth of portion 11; Vice versa.

Claims

1, a kind of three-position four-way valve, comprise valve body (17), electromagnet (8) and by portion (9) (11), (14), (15), each ends portion by stage clip (1), band tapering spool (2), sealing gasket (3), guide pin bushing (4), seal ring (5), nut (6) and combination mat (7) are formed, its valve pocket is divided into lumen (12) and ante-chamber (13) by spool (2) and sealing gasket (3), electromagnet (8) faces band tapering spool (2), it is characterized in that two groups of described four barrier portion are installed on the valve body (17), on on the valve body, the power supply parallel connection of the electromagnet on one side together down, spool has through hole on (2), electromagnet faces spool (2) and has located back cavity (10), through hole is communicated with ante-chamber (13) and back cavity (10): end the ante-chamber of portion (15) and end the common A mouth of ante-chamber (13) of portion (9), the logical D mouth of lumen by portion (15), the logical C mouth of lumen (12) by portion (9), lumen and the common B mouth of lumen that ends portion (11) by portion (14), lumen by portion (15) communicates with the ante-chamber that ends portion (11), and the lumen (12) that ends portion (9) communicates with the ante-chamber that ends portion (14).