CN209245343U - Four-way valve and air conditioning system - Google Patents

Abstract

The utility model provides a cross valve and air conditioning system. The four-way valve comprises a main valve and a piston sliding block arranged in the main valve, the peripheral surface of the piston sliding block is attached and sealed with the inner surface of the main valve, and an avoiding groove is formed in the peripheral surface of the piston sliding block. The utility model provides a cross valve and air conditioning system, dodge the recess through setting up on the outer peripheral face with piston slider, can reduce the frictional area between outer peripheral face and the internal surface, and then reduce frictional force, it can also hold a certain amount of impurity or foreign matter to dodge the recess simultaneously, can guarantee normal switching-over when there is impurity or foreign matter in the cross valve, rolling mechanism can play certain supporting role to the internal surface and the bottom surface of dodging the recess, prevent that piston slider from producing the damage of deformation scheduling problem for causing the cross valve, utilize first interval, make the contact surface between piston slider and the internal surface be two, do not influence the use of cross valve when one of them contact surface is problematic.

Description

Four-way valve and air-conditioning system

Technical field

The utility model relates to air conditioner technical field, especially a kind of four-way valve and air-conditioning system.

Background technique

Nowadays, four-way valve has become the crucial control valve of air-conditioner set, however the piston in existing four-way valve Between sliding block and the inner surface of main valve use face contact, when machined surface is uneven or piston slider and inner surface between there are miscellaneous When matter or foreign matter, will cause four-way valve can not commutate or the problem of commutation failure.

Utility model content

In order to solve can not normal commutation the technical issues of, and a kind of reduction frictional force is provided and prevents impurity or foreign matter shadow Loud four-way valve and air-conditioning system.

A kind of four-way valve, including main valve and the piston slider being set to inside the main valve, the periphery of the piston slider The inner surface gluing, sealing in face and the main valve is provided with evacuation groove on the outer peripheral surface of the piston slider.

The evacuation groove is annular recess.

The piston slider is cylindrical-shaped structure, and the axis of the axis of the annular recess and the cylindrical-shaped structure is total Line.

Rolling mechanism is provided in the evacuation groove, and the rolling mechanism can roll on the inner surface of the main valve It is dynamic.

The rolling mechanism includes at least one ball, and all balls are uniformly distributed in the evacuation groove.

The evacuation groove includes two sides parallel with the piston slider end face, and two sides are opposite to be set It sets, and each side all has the first spacing between the adjacent piston slider end face.

A kind of air-conditioning system, including above-mentioned four-way valve.

Four-way valve provided by the utility model and air-conditioning system are recessed by the way that evacuation is arranged on the outer peripheral surface by piston slider Slot can reduce the friction area between outer peripheral surface and inner surface, and then reduction frictional force, while avoiding groove to accommodate A certain amount of impurity or foreign matter, can be in four-way valve there are normal commutation is guaranteed when impurity or foreign matter, and rolling mechanism can be right The problems such as bottom surface of inner surface and evacuation groove plays certain supporting role, prevents piston slider from generating deformation is to cause four-way valve Damage make contact rubbing surface two between piston slider and inner surface using the first spacing, a contact rubs wherein There are the uses for not influencing four-way valve when problem in wiping face.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the four-way valve of the embodiment of four-way valve provided by the utility model and air-conditioning system；

In figure:

1, main valve；2, piston slider；3, groove is avoided；4, rolling mechanism.

Specific embodiment

In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation The present invention will be further described in detail for example.It should be appreciated that specific embodiment described herein is only used for explaining this Utility model is not used to limit the utility model.

Four-way valve as shown in Figure 1, including main valve 1 and the piston slider 2 being set to inside the main valve 1, the piston It is recessed to be provided with evacuation on the outer peripheral surface of the piston slider 2 for the inner surface gluing, sealing of the outer peripheral surface of sliding block 2 and the main valve 1 Slot 3 reduces contact friction area of the outer peripheral surface with inner surface using evacuation groove 3, to reduce frictional force, increasing commutation can By property, and evacuation groove 3 can also accommodate a certain amount of impurity or foreign matter, avoid Installed System Memory piston in impurity or foreign matter Sliding block 2 blocks the problem of can not commutating generation.

Wherein the evacuation groove 3 can be multiple, or it is one, optimal when avoiding groove 3 is one, The evacuation groove 3 is that annular recess namely the evacuation groove 3 are provided on entire outer peripheral surface, reduces rub to greatest extent Wipe area.

The piston slider 2 is cylindrical-shaped structure, and the axis of the axis of the annular recess and the cylindrical-shaped structure Collinearly namely the uniform depth of the annular recess, prevent that the distribution of weight of piston slider 2 is uneven and causes poorly sealed ask Topic.

Rolling mechanism 4 is provided in the evacuation groove 3, and the rolling mechanism 4 can be in the inner surface of the main valve 1 Upper rolling carries out certain support using between 4 pairs of rolling mechanism evacuation groove 3 and inner surfaces, prevents piston slider 2 from generating shape The problem of change.

The rolling mechanism 4 includes at least one ball, and all balls are uniformly distributed in the evacuation groove 3 It is interior, under the premise of guaranteeing support force, reduce contact area as far as possible.

The evacuation groove 3 includes two sides parallel with 2 end face of piston slider, and two sides are opposite to be set It sets, and each side all has the first spacing between adjacent 2 end face of the piston slider, also connects existing face Touching replaces with two lines contact, reduces frictional force, increases commutation reliability.

A kind of air-conditioning system, including above-mentioned four-way valve.

Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed, But it should not be understood as limiting the scope of the patent of the utility model.It should be pointed out that for the common of this field For technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these all belong to In the protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.

Claims (7)

1. a kind of four-way valve including main valve (1) and is set to the internal piston slider (2) of the main valve (1), the piston slider (2) the inner surface gluing, sealing of outer peripheral surface and the main valve (1), it is characterised in that: on the outer peripheral surface of the piston slider (2) It is provided with evacuation groove (3).

2. four-way valve according to claim 1, it is characterised in that: the evacuation groove (3) is annular recess.

3. four-way valve according to claim 2, it is characterised in that: the piston slider (2) is cylindrical-shaped structure, and described The axis collinear of the axis of annular recess and the cylindrical-shaped structure.

4. four-way valve according to any one of claim 1 to 3, it is characterised in that: be provided in the evacuation groove (3) Rolling mechanism (4), and the rolling mechanism (4) can roll on the inner surface of the main valve (1).

5. four-way valve according to claim 4, it is characterised in that: the rolling mechanism (4) includes at least one ball, and All balls are uniformly distributed in the evacuation groove (3).

6. four-way valve according to claim 2, it is characterised in that: the evacuation groove (3) includes and the piston slider (2) two parallel sides of end face, two sides are oppositely arranged, and each side is to the adjacent piston slider (2) the first spacing is all had between end face.

7. a kind of air-conditioning system, it is characterised in that: including four-way valve described in any one of claims 1 to 6.