CN2091395U - Valve open angle display and self-lock device - Google Patents

Abstract

The utility model discloses a valve opening degree display and a self-lock device, which is composed of a fixed graduated disk, a movable graduated disk, a hand wheel, a lock core, a key, a spring, a spring pad, a screw nut, etc. The device solves the problem that the media flow can be adjusted with purpose and the number value of the media flow can be accurately measured, and simultaneously, the self-lock problem of the balanced valve of the pipe network system can be solved. The valve open angle display and a self-lock device which can be used for a pipe network system has the advantages of low cost, energy saving, high work efficiency; the valve open angle display and a self-lock device which provides reliable references to regulate and balance the accurate value of the opening degree.

Description

Valve open angle display and self-lock device

The aperture that the utility model relates to a kind of valve shows and self-locking device.

Before the utility model, the valve that heat distribution pipe network uses does not have aperture to show and self-locking device, therefore can not the effect of autotelic adjustment rate-of flow, also can't determine the accurate numerical value of rate-of flow, and cause energy significant wastage.Owing to there is not the locking device of valve, tested heat distribution pipe network heating range is destroyed, cause balance to lose proper function, make whole pipe network system disequilibrium, also can influence whole pipe network energy loss and waste.

The purpose of this utility model provides a kind of valve opening display and self-locking device, for the accurate numerical value of adjusting valve opening provides reliable foundation, thereby guarantee the balance of heating network system, but energy saving 30%, and for realizing that good condition has been created in microcomputer network control in the pipe network system.

The purpose of this utility model is achieved in that it is connected with the valve rod of valve handwheel by spline, and has two observation panels in the upper end of handwheel, and wherein opening display device is by fixedly dial, moving scale, mandrel, handwheel etc. are formed.Be cast with interior hexagonal in the fixing bottom of dial, hexagon nut on it and the handwheel valve tip valve gap is affixed, at the circumferencial direction of fixing dial 10 cone shape holes that evenly distribute, moving scale is connected with mandrel on the handwheel by nut, spring pad, nine teeth are arranged, as the gear of this device on the moving scale.A tooth is fixedly arranged on the dial, and the gear on the mandrel is meshed with gear on the fixing dial.

Self-locking device is made up of lock core, spring, key etc., spring, lock core is assembled in the lock chamber of handwheel, has a key on the top of handwheel, and key inserts with keyhole on the lock core from key and cooperates.

Advantage of the present utility model: simple in structure, structure is novel, and the performance flexibility and reliability can realize that the aperture of valve shows and self-locking, and can guarantee network security, energy-saving efficiency is high.

Do embodiment's explanation below in conjunction with accompanying drawing.

Fig. 1 is the utility model structural representation.

Fig. 2 is the A-A sectional drawing (unlock state) of Fig. 1.

Fig. 3 is the A-A sectional drawing (lock state) of Fig. 1.

Fig. 4 is the plan view of Fig. 1.

By Fig. 1-4 as can be known, the hexagon nut 17 in fixedly the bottom of dial is cast with on hexagonal and the valve gap 15 is affixed, evenly is carved with 0 at the fixing circumferencial direction of dial 1 ... ten scales such as 9 grades.Moving scale 3 is as a gear, and its pressure angle is 20 °, modulus 2.5.Two between cog at gear are carved with 0 ... nine number of degrees such as 8 grades, fixedly dial 1 has a fixing tooth with moving scale 3 faces of being meshed.Have two to show that a mouthful conduct observation aperture shows numerical value usefulness in the upper end of handwheel 2, be with a gear (being moving scale 3) on mandrel 4, the gear on the mandrel compresses with nut, spring pad.When needs are adjusted valve opening, earlier key 7 is inserted from keyhole, lock core 5, spring 6 are assembled in the lock chamber of handwheel 2, have a key on the top of handwheel 2, key 7 inserts key, lock core 5 holddown springs 6, and lock core 5 separates with fixing dial 1, adjust valve opening this moment, and key is just extracted can realize self-locking.

Claims (1)

1, a kind of valve opening display and self-locking device, it is characterized in that: it is connected with the valve rod of valve handwheel by spline, and have two observation panels in the upper end of handwheel, wherein opening display device is by fixing dial, moving scale, mandrel, compositions such as handwheel, be cast with interior hexagonal in the fixing bottom of dial, hexagon nut on it and the handwheel valve tip valve gap is affixed, at the circumferencial direction of fixing dial 10 cone shape holes that evenly distribute, moving scale passes through nut, spring pad is connected with mandrel on the handwheel, nine teeth are arranged on the moving scale, gear as this device, a tooth is fixedly arranged on the dial, and the gear on the mandrel is meshed with gear on the fixing dial;

Self-locking device is made up of lock core, spring, key etc., spring, lock core is assembled in the lock chamber of handwheel, has a key on the top of handwheel, and key inserts with keyhole on the lock core from key and cooperates.

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