Sliding block structure, switching valve and air conditioning system

Abstract

The utility model provides a slider structure, a switching valve and an air conditioning system, the slider structure comprises a slider piece, a support pin and fasteners, the slider piece is provided with a slider cavity, and the support pin is fixedly mounted in one side of an opening of the slider cavity through the fasteners; the two ends of the supporting pin are fixedly connected with the sliding block piece through at least one fastening piece. According to the technical scheme provided by the utility model, the two ends of the supporting pin are fixed through the fasteners, so that the situation that the supporting pin in the prior art has the risk of falling off when interference installation is adopted can be avoided, the stable installation of the supporting pin in the sliding block piece can still be ensured even under the action of pressure difference, and the service life of the supporting pin is prolonged. And the mounting reliability of the supporting pin and the supporting reliability of the supporting pin to the sliding block piece are ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to switching valve technical field, specifically, switching valve and air conditioning system of slider structure. BACKGROUND

[0002] For switching valve, its inside movement through slider structure realizes switching to working condition, in the use process, the slider cavity of slider piece itself of slider structure can form the pressure difference between the cavity of main valve body, under normal circumstances, the cavity in main valve body is high pressure side, the slider cavity of slider piece is opposite low pressure side, in order to avoid the deformation or damage of slider piece under the action of pressure difference, usually set up support pin to realize the support and strengthening of slider piece at the opening of slider cavity.

[0003] But the support pin in prior art usually installs in slider piece in interference, when switching valve with slider structure is applied to air conditioning system, if the reverse pressure difference of air conditioning system (the slider cavity of slider piece of switching valve can become high pressure side, and the cavity of main valve body is opposite low pressure side), will cause the slider piece to be expanded by inside support under the action of pressure difference, and then make the interference of support pin and slider piece invalid and cause the falling of support pin from slider piece. UTILITY MODEL CONTENTS

[0004] The utility model provides a slider structure, switching valve and air conditioning system to solve the problem of falling risk of support pin when installing support pin in interference.

[0005] In order to realize the above-mentioned purpose, according to one aspect of the utility model, the utility model provides a slider structure, slider structure includes slider piece, support pin and fastener, slider piece has slider cavity, and support pin is fixedly installed in the inside of one side of slider cavity opening through multiple fasteners, wherein, both ends of support pin are fixedly connected with slider piece through at least one fastener.

[0006] Further, the slider piece has a first mounting hole, the two ends of the first mounting hole extend to the inner and outer sides of the slider piece respectively, and one end of the fastener passes through the first mounting hole and is connected with the support pin.

[0007] Further, the support pin has a second mounting hole corresponding to the first mounting hole, the first mounting hole and the second mounting hole are coaxial, and one end of the fastener passes through the first mounting hole and penetrates into the corresponding second mounting hole.

[0008] Further, the first mounting hole is a threaded hole, and / or the second mounting hole is a threaded hole, the fastener is a bolt, and the bolt is threadedly connected with the first mounting hole and / or the second mounting hole.

[0009] Further, the first mounting hole and the second mounting hole are parallel to the plane in which the sliding block cavity opening is located, the support pin has a second mounting hole at each end, and the two second mounting holes at the two ends of the support pin are coaxially arranged.

[0010] Further, the first mounting hole has a countersunk groove at the opening extending to the outside of the sliding block piece, the fastener comprises a main body and a limiting end, the radial dimension of the limiting end is greater than that of the main body, the limiting end is arranged in the countersunk groove, and the main body is arranged in the first mounting hole.

[0011] Further, the sliding block structure further comprises a sealing structure arranged between the fastener and the sliding block piece.

[0012] Further, the inner wall of the opening of the sliding block cavity has two symmetrical positioning grooves, and the two ends of the support pin are arranged in the two positioning grooves, respectively.

[0013] Further, the opening of the positioning groove is further provided with a limiting structure for limiting the end of the support pin in the positioning groove.

[0014] Further, the side of the support pin close to the opening of the sliding block cavity is a plane, and the side of the support pin away from the opening of the sliding block cavity is an arc surface.

[0015] Further, the sliding block piece comprises an integrally formed cavity seat and a sliding block seat, the sliding block seat is arranged on the cavity opening side of the cavity seat, the cavity of the sliding block seat and the cavity of the cavity seat jointly form the sliding block cavity, the two ends of the support pin are fixedly connected with the sliding block seat through at least one fastener, and the side of the sliding block seat facing the cavity seat has a plurality of cooperation structures avoiding the cavity seat, and the cooperation structures are used for being connected with the sleeve joint plate of the switching valve.

[0016] According to another aspect of the present application, a switching valve is provided, which comprises a main valve body, a sleeve joint plate and the sliding block structure, the sliding block structure is slidably arranged in the main valve body through the sleeve joint plate, so as to switch the flow working condition of the main valve body.

[0017] According to another aspect of the present application, an air conditioning system is provided, which comprises the switching valve.

[0018] The technical scheme of the present application provides a sliding block structure, which comprises a sliding block piece, a support pin and a fastener, the sliding block piece has a sliding block cavity, the support pin is fixedly arranged in the inside of the opening side of the sliding block cavity through a plurality of fasteners, and the two ends of the support pin are fixedly connected with the sliding block piece through at least one fastener.

[0019] By fixing the both ends of the support pin through the fastener, the situation that the support pin is likely to fall off when being installed in an interference fit in the prior art can be avoided, and stable installation of the support pin in the sliding block member can be ensured even under the action of pressure difference, thereby ensuring the reliability of installation of the support pin and the reliability of support of the support pin on the sliding block member. BRIEF DESCRIPTION OF DRAWINGS

[0020] The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the application and are incorporated herein by reference. The embodiments illustrated in the drawings are provided to explain the present application and are not meant to limit the present application. In the drawings:

[0021] Figure 1 A structural schematic view of a sliding block structure provided by an embodiment of the present application is shown;

[0022] Figure 2 A sectional view of Figure 1 is shown;

[0023] Figure 3 An enlarged view of the A position of Figure 2 is shown;

[0024] Figure 4 A structural schematic view of a sliding block structure provided by an embodiment of the present application is shown;

[0025] Figure 5 A sectional view of Figure 4 is shown;

[0026] Figure 6 An enlarged view of the B position of Figure 5 is shown.

[0027] In the above drawings, the following reference signs are used:

[0028] 10, sliding block member; 101, sliding block cavity; 1011, positioning groove; 1012, limiting structure; 102, first mounting hole; 1021, counterbore groove; 103, matching structure; 11, cavity seat; 12, sliding block seat;

[0029] 20, support pin; 201, second mounting hole;

[0030] 30, fastener; 31, fastener main body; 32, limiting end;

[0031] 40, sealing structure. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way limiting on the present application and its applications or uses. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative labor fall within the scope of the present application.

[0033] As shown in the drawings, Figures 1 to 6 The embodiment of the present application provides a sliding block structure, which comprises a sliding block piece 10, a supporting pin 20 and a fastener 30, the sliding block piece 10 has a sliding block cavity 101, the supporting pin 20 is fixedly installed in the inside of the opening side of the sliding block cavity 101 through a plurality of fasteners 30, and both ends of the supporting pin 20 are fixedly connected with the sliding block piece 10 through at least one fastener 30.

[0034] In the embodiment, the both ends of the supporting pin 20 are fixed through the fasteners 30, so that the situation that the supporting pin 20 is prone to falling off when being installed in an interference fit in the prior art can be avoided, and even under the action of pressure difference, the stable installation of the supporting pin 20 in the sliding block piece 10 can still be ensured, and the reliability of the installation of the supporting pin 20 and the reliability of the support of the supporting pin 20 on the sliding block piece 10 are ensured.

[0035] The number of fasteners 30 required for connecting any one end of the supporting pin 20 with the sliding block piece 10 can be determined according to actual conditions, and examples are not given here.

[0036] Specifically, the sliding block piece 10 has a first mounting hole 102, both ends of the first mounting hole 102 extend to the inside and outside of the sliding block piece 10 respectively, and one end of the fastener 30 penetrates through the first mounting hole 102 and is connected with the supporting pin 20. In this way, the connection effect of the fastener 30 and the sliding block piece 10 can be improved, and the installation effect of the supporting pin 20 on the sliding block piece 10 is improved. At the same time, the disassembly and guidance of the supporting pin 20 are facilitated, and the convenience of disassembly is improved.

[0037] Further, the supporting pin 20 has a second mounting hole 201 corresponding to the first mounting hole 102, the first mounting hole 102 and the second mounting hole 201 are coaxial, and one end of the fastener 30 penetrates through the first mounting hole 102 and penetrates into the corresponding second mounting hole 201. The coaxial design facilitates the installation and guidance of the fastener 30, and is conducive to improving the connection effect of the fastener 30 and the supporting pin 20, thereby improving the reliability of the connection and the overall stability of the sliding block structure.

[0038] It can be understood that in other embodiments not shown in the figure, the second mounting hole 201 can not be provided, and a clamping limiting structure can be provided at one end of the fastener 30 penetrating into the slider cavity 101, and the clamping of the support pin 20 can be achieved by the fasteners 30 on both sides.

[0039] In the embodiment, the first mounting hole 102 is a circular through hole, and the second mounting hole 201 is a threaded hole, and the threaded connection between the threaded hole and the threaded part of the fastener 30 can not only enhance the tightness of the connection, but also facilitate the positioning and fixing of the fastener 30.

[0040] In the embodiment, the first mounting hole 102 is a circular through hole, and the second mounting hole 201 is a threaded hole, and the threaded connection between the threaded hole and the threaded part of the fastener 30 can not only enhance the tightness of the connection, but also facilitate the positioning and fixing of the fastener 30.

[0041] It can be understood that the threaded hole design of the corresponding first mounting hole 102 and second mounting hole 201 can be adaptively adjusted according to actual conditions, such as the corresponding first mounting hole 102 and second mounting hole 201 are both threaded holes, or the corresponding first mounting hole 102 is a threaded hole and the second mounting hole 201 is a circular through hole.

[0042] Alternatively, in other embodiments not shown in the figure, the first mounting hole 102 is a rectangular through hole, and the fastener 30 has an adaptive rectangular section between the end and the threaded section. Or in another embodiment not shown in the figure, the fastener 30 is a pluggable rectangular plug, the first mounting hole 102 and the second mounting hole 201 are both rectangular holes, and the plug can be fixed by other positioning pins and the like after installation. By plugging and unplugging the plug, the fixed connection of the support pin 20 can be achieved, and the rectangular design of the second mounting hole 201 can also avoid the rotation of the support pin 20. It can be understood that the fastener 30 can also be other limiting members such as a plug, and the cross-sectional shape of the first mounting hole 102 and the second mounting hole 201 can also be adaptively adjusted according to actual conditions, such as a circular hole and a polygonal hole, which will not be exemplified here.

[0043] As shown in Figures 1 to 6 The axes of the first mounting hole 102 and the second mounting hole 201 are parallel to the plane where the opening of the slider cavity 101 is located, the support pin 20 has a second mounting hole 201 at each end, and the two second mounting holes 201 at the two ends of the support pin 20 are coaxially arranged. In this way, the symmetrical installation of the support pin 20 is ensured, and the stability of the installation is further improved.

[0044] In the embodiment, the first mounting hole 102 has a countersunk groove 1021 at the opening outside the sliding block 10, the fastener 30 includes a fastening body 31 and a limiting end 32, the radial dimension of the limiting end 32 is greater than that of the fastening body 31, the limiting end 32 is arranged in the countersunk groove 1021, and the fastening body 31 is arranged in the first mounting hole 102. In this way, the limiting end 32 of the fastener 30 can be hidden below the surface of the sliding block 10, which not only is beautiful but also reduces the interference of external objects on the fastener 30, thereby avoiding the accidental damage of the fastener 30 during use or maintenance and prolonging the service life.

[0045] It can be understood that the shape of the countersunk groove 1021 and the shape of the limiting end 32 can be adaptively adjusted according to actual conditions, and they are matched.

[0046] Preferably, the sliding block structure further includes a sealing structure 40 arranged between the fastener 30 and the sliding block 10. In the embodiment one as shown in Figures 1 to 3 , the shape of the countersunk groove 1021 and the shape of the limiting end 32 are matched and the size is also matched, the size of the countersunk groove 1021 gradually increases in the direction from the inside to the outside of the sliding block 10, so as to facilitate the stop cooperation with the limiting end 32 and limit the depth of the fastener 30. In the embodiment two as shown in Figures 4 to 6 , the shape of the countersunk groove 1021 and the shape of the limiting end 32 are matched but the size is greater than that of the limiting end 32, and the sealing structure 40 is a ring-shaped sealing gasket arranged in the gap between the inner wall of the countersunk groove 1021 and the outer wall of the limiting end 32, which plays a sealing role and also has a certain flexible buffering effect on installation, thereby avoiding the hard contact between the limiting end 32 and the countersunk groove 1021, which is easy to be damaged.

[0047] It can be understood that the design of the sealing structure 40 is not limited to the above-mentioned embodiments. For example, in the embodiment one as shown in Figures 1 to 3 , the sealing structure 40 can be a sealing glue coated on the outer periphery of the fastener 30, and after the sealing glue is inserted into the first mounting hole 102 and the second mounting hole 201, the sealing glue is at least partially fixed in the gap between the fastener 30 and the first mounting hole 102 to block the gap therebetween.

[0048] It should be noted that when the first mounting hole 102 is not designed with the countersunk groove 1021, the sealing structure 40 can also be arranged between the limiting end 32 and the outside of the sliding block 10.

[0049] For example, in the embodiment two as shown in Figure 3 and Figure 6As shown in the drawings, the inner wall at the opening of the slider cavity 101 is provided with two positioning grooves 1011 symmetrically arranged, and the two ends of the support pin 20 are respectively installed in the two positioning grooves 1011. In the embodiment, the design of the positioning grooves 1011 can ensure the accurate positioning of the support pin 20 in the slider cavity 101, improve the installation accuracy, and the design of the positioning grooves 1011 is also conducive to the corresponding design of the first mounting hole 102 and the second mounting hole 201 on the same side.

[0050] As shown in the drawings, Figure 3 and Figure 6 As shown in the drawings, the opening of the positioning groove 1011 is also provided with a limiting structure 1012, and the limiting structure 1012 is used to limit the end of the support pin 20 in the positioning groove 1011. In this way, the limiting structure 1012 can stop the support pin 20 in the disengagement direction, which can further prevent the support pin 20 from disengaging, and facilitate the pre-installation of the support pin 20, thereby improving the convenience of installing the support pin 20.

[0051] It should be noted that the limiting structure 1012 in the embodiment is a strip-shaped structure integrally formed on the slider piece 10, and the stopping area of the end of the support pin 20 is as small as possible on the basis of ensuring the stopping effect, so as to ensure the normal installation of the support pin 20.

[0052] Preferably, the side of the support pin 20 close to the opening of the slider cavity 101 is a plane, and the side of the support pin 20 away from the opening of the slider cavity 101 is an arc surface. In this way, by the plane of the side of the support pin 20 close to the opening of the slider cavity 101, the worker can judge whether the installation of the support pin 20 is skewed by observing whether the plane and the opening of the slider cavity 101 are parallel, which facilitates the pre-positioning of the support pin 20 during injection molding and ensures the reliability of the installation of the support pin 20. Through the arc surface of the support pin 20, it is conducive to reducing the flow resistance of the fluid flowing through the slider cavity 101.

[0053] As shown in the drawings, Figure 1 and Figure 4 As shown in the drawings, the slider piece 10 includes an integrally formed cavity seat 11 and a slider seat 12, the slider seat 12 is arranged on the cavity opening side of the cavity seat 11, the cavity of the slider seat 12 and the cavity of the cavity seat 11 together form the slider cavity 101, both ends of the support pin 20 are fixedly connected with the slider seat 12 through at least one fastener 30, and the side of the slider seat 12 facing the cavity seat 11 is provided with a plurality of cooperation structures 103 avoiding the cavity seat 11. In the embodiment, the integrally formed design improves the strength and durability of the slider structure, and the plurality of cooperation structures 103 can ensure the stable connection between the slider and the sleeve plate.

[0054] Preferably, the slider piece 10 is integrally injection molded.

[0055] Another embodiment of the utility model provides a kind of switching valve, switching valve includes main valve body, sleeve joint plate and the slider structure described above, slider structure is slidably arranged in main valve body by sleeve joint plate, to switch the flow condition of main valve body.By the installation design of the supporting pin 20 of slider structure, the stability of slider structure is improved, and the reliability and stability of switching valve application are further improved.

[0056] Yet another embodiment of the utility model provides a kind of air conditioning system, air conditioning system includes the switching valve described above.By the installation design of the supporting pin 20 of slider structure, the reliability and stability of slider structure and switching valve application are improved, and the reliability and stability of air conditioning system application are further improved, even in the reverse pressure difference of use process also does not appear the situation of supporting pin 20 drop-off.

[0057] It should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form, unless the context clearly indicates otherwise, and furthermore, it should be understood that when the terms "comprise" and / or "include" are used in the specification, there is a feature, step, operation, device, component and / or combination thereof.

[0058] Unless otherwise specified, the relative arrangement of components and steps, numerical expressions and values set forth in these embodiments do not limit the scope of the utility model. At the same time, it should be understood that, in order to facilitate description, the size of each part shown in the drawings is not drawn according to the actual proportion relationship. The technology, method and equipment known to those skilled in the relevant art can not be discussed in detail, but under appropriate circumstances, the technology, method and equipment should be regarded as part of the authorized specification. In all examples shown and discussed herein, any specific value should be interpreted as merely exemplary, and not as a limitation. Therefore, other examples of exemplary embodiments can have different values. It should be noted that similar reference numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0059] In the description of the utility model, it is understood that the orientation words such as '' front, back, up, down, left, right '' '' horizontal, vertical, perpendicular, horizontal '' and '' top, bottom '' and the like indicated orientation or positional relationship is usually based on the orientation or positional relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, in the absence of the opposite statement, these orientation words do not indicate and imply that the device or element indicated must have a particular orientation or be constructed and operated in a particular orientation, therefore can not be understood as the limitation of the protection scope of the utility model;The orientation words '' inside, outside '' refer to the inside and outside relative to the contour of each component.

[0060] For the convenience of description, spatial relative terms such as '' above'', '' above'', '' upper surface'', '' upper '' and the like can be used here to describe the spatial position relationship of one device or feature with other devices or features as shown in the drawing. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the device described in the drawing. For example, if the device in the drawing is inverted, the device described as '' above '' or '' above '' other devices or structures will be positioned '' below '' or '' below '' other devices or structures. Thus, the exemplary term '' above '' can include both '' above '' and '' below '' orientations. The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative description used here is interpreted accordingly.

[0061] In addition, it should be noted that the use of '' first'', '' second '' and the like to limit parts is only for the convenience of distinguishing the corresponding parts, and the above words have no special meaning unless otherwise stated, therefore can not be understood as the limitation of the protection scope of the utility model.

[0062] The above only describes the preferred embodiments of the utility model, and is not used to limit the utility model, for those skilled in the art, the utility model can have various changes and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A slider structure, characterized by, The slider structure comprises a slider piece (10), a supporting pin (20) and a fastener (30), the slider piece (10) has a slider cavity (101), the supporting pin (20) is fixedly installed inside the slider cavity (101) on the opening side through a plurality of fasteners (30); wherein both ends of the supporting pin (20) are fixedly connected with the slider piece (10) through at least one fastener (30).

2. The slider structure according to claim 1, wherein The slider piece (10) has a first mounting hole (102), both ends of the first mounting hole (102) extend to the inner and outer sides of the slider piece (10) respectively, one end of the fastener (30) passes through the first mounting hole (102) and is connected with the supporting pin (20).

3. The slider structure according to claim 2, wherein The supporting pin (20) has a second mounting hole (201) corresponding to the first mounting hole (102), the first mounting hole (102) and the second mounting hole (201) are coaxial, one end of the fastener (30) passes through the first mounting hole (102) and penetrates into the corresponding second mounting hole (201).

4. The slider structure according to claim 3, wherein, The first mounting hole (102) is a threaded hole, and / or the second mounting hole (201) is a threaded hole; The fastener (30) is a bolt, which is threadedly connected with the first mounting hole (102) and / or the second mounting hole (201).

5. The slider structure according to claim 3, wherein The axes of the first mounting hole (102) and the second mounting hole (201) are parallel to the plane where the opening of the slider cavity (101) is located, the supporting pin (20) is provided with one second mounting hole (201) at each end, and the two second mounting holes (201) at both ends of the supporting pin (20) are coaxially arranged.

6. The slider structure according to claim 2, wherein The opening of the first mounting hole (102) extending to the outside of the slider piece (10) has a countersunk groove (1021), the fastener (30) comprises a fastening body (31) and a limiting end (32), the radial dimension of the limiting end (32) is greater than that of the fastening body (31), the limiting end (32) is arranged in the countersunk groove (1021), and the fastening body (31) is arranged in the first mounting hole (102).

7. The slider structure of claim 1, wherein The slider structure further comprises a sealing structure (40) arranged between the fastener (30) and the slider piece (10).

8. The slider structure of claim 1, wherein The inner wall of the opening of the slider cavity (101) is provided with two symmetrical positioning grooves (1011), and the two ends of the supporting pin (20) are respectively arranged in the two positioning grooves (1011).

9. The slider structure according to claim 8, wherein The opening of the positioning groove (1011) is further provided with a limiting structure (1012) for limiting the end of the supporting pin (20) in the positioning groove (1011).

10. The slider structure of claim 1, wherein The side of the supporting pin (20) close to the opening of the slider cavity (101) is a plane, and the side of the supporting pin (20) away from the opening of the slider cavity (101) is an arc surface.

11. The slider structure of claim 1, wherein The slider piece (10) comprises an integrally formed cavity seat (11) and a slider seat (12), the slider seat (12) is arranged at the cavity opening side of the cavity seat (11), the cavity of the slider seat (12) and the cavity of the cavity seat (11) jointly form the slider cavity (101), both ends of the supporting pin (20) are fixedly connected with the slider seat (12) through at least one fastener (30), and the side of the slider seat (12) facing the cavity seat (11) is provided with a plurality of matching structures (103) avoiding the cavity seat (11), and the matching structures (103) are used for being connected with the sleeve joint plate of the switching valve.

12. A switching valve characterized by comprising: The switching valve comprises a main valve body, a sleeve joint plate and the slider structure in any one of claims 1 to 11, the slider structure is slidably arranged in the main valve body through the sleeve joint plate, so as to switch the flow working condition of the main valve body.

13. An air conditioning system, characterized by, The air conditioning system comprises the switching valve in claim 12.

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