Combined support and four-way valve with same

Abstract

The utility model provides a combined support and a four-way valve with the same. The combined support comprises a main valve support and a pilot valve connecting frame. The main valve support comprises a first supporting plate and two first side plates. The first supporting plate is used for being welded and fixed to the outer wall of a main valve. The pilot valve connecting frame comprises a second supporting plate and two second side plates, and the second supporting plate is used for being welded and fixed to the outer wall of the pilot valve; the lower ends of the two second side plates are respectively fixed with the upper end of one of the first side plates; an expansion part is arranged at one end of the second supporting plate, a welding pool hole is formed in the expansion part, and the capillary tube is welded and fixed to the expansion part through welding flux located in the welding pool hole; the extension part is further provided with a molten pool hole, the pilot valve is further welded and fixed to the pilot valve connecting frame through welding flux located in the molten pool hole, and the four-way valve comprises the combined support. According to the combined support, the fixing firmness of the pilot valve and the pilot valve connecting frame can be improved, namely the fixing firmness of the pilot valve and the main valve through the combined support can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of four-way valves for refrigeration control, in particular to a combined bracket and a four-way valve having the same. Background Art

[0002] The four-way valve reversing valve (hereinafter referred to as the four-way valve) is mainly used in heat pump air conditioners, water heaters and other systems. It is mainly used to switch the flow direction of the refrigerant flow channel in the system, thereby realizing the cooling, heating, defrosting and other functions of the entire system; the four-way valve is mainly composed of a pilot valve, a main valve and an electromagnetic coil. The pilot valve is fixed to the main valve through a bracket structure. In the prior art, the bracket between the pilot valve and the main valve is an integrated structure or a split structure fixed by riveting or screws. It is difficult to assemble, prone to deviation during assembly, and has the disadvantages of unreliable fixation and high cost.

[0003] To this end, Chinese Patent Publication No.: CN215806678U discloses a pilot valve and a four-way valve. In this comparative document, the pilot valve is directly welded to the arc surface located on the pilot valve bracket, which has the disadvantage of poor welding firmness. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a combined bracket and a four-way valve having the same, wherein after a molten pool hole is arranged on the extension portion, the pilot valve is also welded and fixed to the pilot valve connecting frame through the solder located in the molten pool hole, thereby being able to further improve the fixing firmness of the pilot valve and the pilot valve connecting frame.

[0005] The utility model provides a combined bracket, comprising a main valve bracket and a pilot valve connecting frame; the main valve bracket comprises a first supporting plate and two first side plates, the two first side plates are relatively arranged on both sides of the first supporting plate, the two first side plates extend vertically upward, and the first supporting plate is used for being welded and fixed on the outer wall of the main valve; the pilot valve connecting frame comprises a second supporting plate and two second side plates, the two first side plates are relatively arranged on both sides of the second supporting plate, the two second side plates extend vertically downward, and the second supporting plate is used for being welded and fixed on the outer wall of the pilot valve; the lower ends of the two second side plates are respectively fixed to the upper end of one of the first side plates; an extension portion is provided at one end of the second supporting plate, the extension portion is in an arc shape for fitting with the outer wall of the pilot valve, a welding pool hole is provided on the extension portion, the welding pool hole is used for a capillary of the pilot valve to pass through, and the capillary is welded and fixed to the extension portion through the solder located in the welding pool hole; a molten pool hole is also provided on the extension portion, the molten pool hole is located at the junction of the extension portion and the second supporting plate, and the pilot valve is also welded and fixed to the pilot valve connecting frame through the solder located in the molten pool hole.

[0006] After the molten pool hole is provided on the extension portion, the utility model can weld and fix the pilot valve to the pilot valve connecting frame through the solder located in the molten pool hole, thereby being able to further improve the fixing firmness of the pilot valve and the pilot valve connecting frame, that is, being able to further improve the fixing firmness of the pilot valve and the main valve via the combined bracket; in addition, since the lower ends of the two second side plates are respectively fixed to the upper end of one of the first side plates, it is possible to realize a surface-to-surface fixing structure of the second side plates and the first side plates, for example, the lower end face of the second side plate is welded and fixed to the upper end face of the first side plate, thereby being able to further improve the fixing firmness and reliability of the pilot valve connecting frame and the main valve bracket.

[0007] In a possible embodiment, the lower ends of the two first side plates are connected to the first support plate as a whole, the first support plate is in an arc shape for fitting with the outer wall of the main valve, a first welding hole is provided on the first support plate, and the first support plate is fixed to the outer wall of the main valve by welding with solder located in the first welding hole; the upper ends of the two second side plates are connected to the second support plate as a whole, the second support plate is in an arc shape for fitting with the outer wall of the pilot valve, a second welding hole is provided on the second support plate, and the second support plate is fixed to the outer wall of the pilot valve by welding with solder located in the second welding hole; the molten pool hole is located between the welding pool hole and the second welding hole; after adopting this structure, since the lower ends of the two first side plates are connected to the first support plate as a whole, the advantages of high connection strength and good consistency between the two first side plates and the first support plate are obtained. Similarly, since the upper ends of the two second side plates are connected to the second support plate as a whole, the advantages of high connection strength and good consistency between the two first side plates and the first support plate are obtained. The second support plate has the advantages of high connection strength and good consistency; the first support plate is welded and fixed to the outer wall of the main valve by the solder located in the first welding hole, so that the first support plate can be reliably welded and fixed to the outer wall of the main valve. Similarly, the second support plate is welded and fixed to the outer wall of the pilot valve by the solder located in the second welding hole, so that the second support plate can be reliably welded and fixed to the outer wall of the pilot valve. In addition, since the first support plate is in an arc shape for fitting with the outer wall of the main valve, the first support plate and the outer wall of the main valve can be tightly attached together to improve the fixing firmness of the first support plate and the main valve, that is, the fixing firmness of the main valve bracket and the main valve can be improved. Since the second support plate is in an arc shape for fitting with the outer wall of the pilot valve, the second support plate and the outer wall of the pilot valve can be tightly attached together to improve the fixing firmness of the second support plate and the pilot valve, that is, the fixing firmness of the pilot valve connecting frame and the pilot valve can be improved.

[0008] In a possible embodiment, the molten pool hole is rectangular and extends along both sides of the extension portion; by adopting this structure, the pilot valve connecting frame and the outer wall of the pilot valve can be further reliably welded and fixed together through the solder located in the molten pool hole.

[0009] In a possible embodiment, the lower ends of the two second side plates are respectively supported on the upper end of one of the first side plates and are welded and fixed to the first side plates, the middle parts of the upper ends of the two first side plates are provided with first slots, the middle parts of the lower ends of the two second side plates are provided with first plug-ins, and the two first plug-ins are respectively inserted into the first slots on the corresponding sides; the lower end of each first plug-in plate extends downward through the first connecting plate to form a first limiting plate, and the two first limiting plates are simultaneously located on the inner side or outer side of the two first side plates and abut against the side walls of the first side plates on the corresponding sides; by adopting this structure, after the two first plug-ins are respectively plugged in with the first slots at the corresponding positions, and after the two first limiting plates abut against the side walls of the first side plates on the corresponding sides, the horizontal limiting of the main valve bracket and the pilot valve connecting frame can be achieved to avoid the horizontal movement and rotation of the main valve bracket and the pilot valve connecting frame, thereby facilitating the welding and fixing of the main valve bracket and the pilot valve connecting frame, and improving the reliability of the main valve bracket and the pilot valve connecting frame after fixing.

[0010] In a possible embodiment, the lower ends of the two second side plates are respectively supported on the upper end of one of the first side plates and are welded and fixed to the first side plates, the middle parts of the upper ends of the two first side plates are each provided with a second plug plate, the middle parts of the lower ends of the two second side plates are each provided with a second slot, and the two second plug plates are respectively inserted into the second slots on the corresponding sides; the lower end of each second side plate and both sides of the second slot are extended downward through the second connecting plate to form a second limiting plate, and the second limiting plates located on the lower ends of the two second side plates are simultaneously located on the inner side or outer side of the two first side plates and abut against the side wall of the first side plate on the corresponding side; by adopting this structure, after the two second plug plates are respectively plugged with the second slots on the corresponding sides, and after each second limiting plate abuts against the outer side wall of the first side plate on the corresponding side, the horizontal limiting of the main valve bracket and the pilot valve connecting frame can be achieved to avoid the main valve bracket and the pilot valve connecting frame from moving horizontally and rotating, thereby facilitating the welding and fixing of the main valve bracket and the pilot valve connecting frame, and improving the reliability of the main valve bracket and the pilot valve connecting frame after fixing.

[0011] In a possible embodiment, the lower ends of the two second side panels are respectively supported on the upper end of one of the first side panels and are welded and fixed to the first side panels, a third slot is provided on one side of the upper ends of the two first side panels, and a third plugging plate is provided at the lower ends of the two second side panels, and the two third plugging plates are respectively inserted into the third slots on the corresponding sides; the lower end of each third plugging plate extends downward through the third connecting plate to form a third limiting plate, and the two third limiting plates are simultaneously located on the inner side or outer side of the two first side panels and abut against the side wall of the first side panel on the corresponding side; the bottom at the outer end of each third slot is provided with a third limiting plate facing the third limiting plate The bends on one side of the positioning plate, each of which abuts against the outer end of the third limiting plate on the corresponding side; by adopting this structure, after the two third plug plates are respectively plugged into the third slots on the corresponding sides, and after each third limiting plate abuts against the side wall of the first side plate on the corresponding side and the bend on the corresponding side, the horizontal limitation of the main valve bracket and the guide valve connecting frame can be achieved to avoid horizontal movement and rotation of the main valve bracket and the guide valve connecting frame, thereby facilitating the welding and fixing of the main valve bracket and the guide valve connecting frame, and improving the reliability of the main valve bracket and the guide valve connecting frame after fixation.

[0012] A four-way valve comprises a main valve, a pilot valve and the above-mentioned combined bracket, wherein a first support plate is welded and fixed to the outer wall of the main valve, a second support plate is welded and fixed to the outer wall of the pilot valve, and the lower ends of the two second side plates are respectively welded and fixed to the upper end of one of the first side plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure after the pilot valve and the main valve are connected through the combined bracket;

[0014] Figure 2 This is a schematic diagram of the three-dimensional structure of the combined bracket when the technical solution of the first embodiment is adopted;

[0015] Figure 3 This is a schematic diagram of the three-dimensional structure of the combined bracket when the technical solution of the second embodiment is adopted;

[0016] Figure 4 It is a schematic diagram of the three-dimensional structure of the main valve bracket when the combined bracket adopts the technical solution of the first embodiment;

[0017] Figure 5 It is a schematic diagram of the three-dimensional structure of the pilot valve connecting frame when the combined bracket adopts the technical solution of the first embodiment;

[0018] Figure 6 This is a schematic diagram of the three-dimensional structure of the combined bracket when the technical solution of the third embodiment is adopted;

[0019] Figure 7 This is a schematic diagram of the three-dimensional structure of the combined bracket when the technical solution of the fourth embodiment is adopted;

[0020] Figure 8 This is a schematic diagram of the three-dimensional structure of the main valve bracket when the combined bracket adopts the technical solution of the third embodiment;

[0021] Fig. 9 It is a schematic diagram of the three-dimensional structure of the pilot valve connecting frame when the combined bracket adopts the technical solution of the third embodiment;

[0022] Fig.10 This is a schematic diagram of the three-dimensional structure of the combined bracket when the technical solution of the fifth embodiment is adopted;

[0023] Fig.11 This is a schematic diagram of the three-dimensional structure of the combined bracket when the technical solution of the sixth embodiment is adopted;

[0024] Fig.12 It is a schematic diagram of the three-dimensional structure of the main valve bracket when the combined bracket adopts the technical solution of the fifth embodiment;

[0025] Fig.13 It is a schematic diagram of the three-dimensional structure of the pilot valve connecting frame when the combined bracket adopts the technical solution of the fifth embodiment. DETAILED DESCRIPTION

[0026] First, those skilled in the art should understand that these implementations are only used to explain the technical principles of the embodiments of the present application, and are not intended to limit the protection scope of the embodiments of the present application. Those skilled in the art can make adjustments to them as needed to adapt to specific application scenarios.

[0027] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0028] In the embodiments of the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0029] The present application is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] Embodiment 1

[0031] See also Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, the embodiment of the present application discloses a combined bracket, including a main valve bracket 1 and a pilot valve connecting bracket 2; the main valve bracket 1 includes a first support plate 11 and two first side plates 12, the two first side plates 12 are relatively arranged on both sides of the first support plate 11, the two first side plates 12 extend vertically upward, and the first support plate 11 is used to be welded and fixed on the outer wall of the main valve 3; the pilot valve connecting bracket 2 includes a second support plate 21 and two second side plates 22, the two first side plates 12 are relatively arranged on both sides of the second support plate 21, the two second side plates 22 extend vertically downward, and the second support plate 21 is used to be welded and fixed on the outer wall of the pilot valve 4; the lower ends of the two second side plates 22 are respectively fixed to the upper end of one of the first side plates 12; one end of the second support plate 21 is provided with an expansion portion 23, and the expansion portion 23 is used to The expansion portion 23 is in an arc shape that fits the outer wall of the pilot valve 4, and is provided with a weld pool hole 231. The weld pool hole 231 is used for the capillary 41 of the pilot valve 4 to pass through. The capillary 41 is welded and fixed to the expansion portion 23 through the solder located in the weld pool hole 231; the expansion portion 23 is also provided with a molten pool hole 232, and the molten pool hole 232 is located at the junction of the expansion portion 23 and the second support plate 21. The pilot valve 4 is also welded and fixed to the pilot valve connecting frame 2 through the solder located in the molten pool hole 232; in the above structure, the capillary of the pilot valve passes through the weld pool hole, and a solder accommodating area is formed between the outer wall of the capillary and the inner wall of the weld pool hole. During welding, the solder is collected in the weld pool hole to form a welding liquid pressure to enhance the welding penetration effect; the accumulation of excess solder in the weld pool hole not only invisibly increases the weld strength but also avoids the occurrence of flow welding.

[0032] The lower ends of the two first side plates 12 are connected to the first support plate 11 as a whole. The first support plate 11 is in an arc shape for fitting with the outer wall of the main valve 3. The first support plate 11 is provided with a first welding hole 111. The first support plate 11 is welded and fixed to the outer wall of the main valve 3 by the solder located in the first welding hole 111; the upper ends of the two second side plates 22 are connected to the second support plate 21 as a whole. The second support plate 21 is in an arc shape for fitting with the outer wall of the pilot valve 4. The second support plate 21 is provided with a second welding hole 211. The second support plate 21 is fixed to the outer wall of the main valve 3 by the solder located in the first welding hole 111. The solder in the second welding hole 211 is welded and fixed on the outer wall of the pilot valve 4; the molten pool hole 232 is located between the welding pool hole 231 and the second welding hole 211; after adopting this structure, since the lower ends of the two first side plates are connected to the first support plate as a whole, the advantages of high connection strength and good consistency between the two first side plates and the first support plate are achieved. Similarly, since the upper ends of the two second side plates are connected to the second support plate as a whole, the advantages of high connection strength and good consistency between the two second side plates and the second support plate are achieved; the first support plate is located at the first welding hole 231. The solder in the hole is welded and fixed on the outer wall of the main valve, so that the first support plate can be reliably welded and fixed to the outer wall of the main valve. Similarly, the second support plate is welded and fixed to the outer wall of the pilot valve by the solder located in the second welding hole, so that the second support plate can be reliably welded and fixed to the outer wall of the pilot valve. In addition, since the first support plate is in an arc shape for fitting with the outer wall of the main valve, the first support plate and the outer wall of the main valve can be tightly fitted together to improve the fixing firmness of the first support plate and the main valve, that is, the fixing of the main valve bracket and the main valve can be improved. Firmness. Since the second support plate is in an arc shape for fitting with the outer wall of the pilot valve, the second support plate can be tightly fitted with the outer wall of the pilot valve to improve the fixing firmness of the second support plate and the pilot valve, that is, the fixing firmness of the pilot valve connecting frame and the pilot valve can be improved; in addition, in the above structure, the lower ends of the two second side plates are respectively welded and fixed to the upper end of one of the first side plates, which can enable the second side plate and the first side plate to realize a surface-to-surface welding fixing structure, thereby further improving the fixing firmness and reliability of the pilot valve connecting frame and the main valve bracket.

[0033] The molten pool hole 232 is rectangular and extends along both sides of the extension portion 23; by adopting this structure, the pilot valve connecting frame and the outer wall of the pilot valve can be further reliably welded and fixed together through the solder located in the molten pool hole.

[0034] The lower ends of the two second side plates 22 are respectively supported on the upper ends of one of the first side plates 12 and are welded and fixed to the first side plates 12. The middle parts of the upper ends of the two first side plates 12 are provided with first slots 121, and the middle parts of the lower ends of the two second side plates 22 are provided with first plugging plates 221. The two first plugging plates 221 are respectively inserted into the first slots 121 on the corresponding sides; the lower end of each first plugging plate 221 extends downward through the first connecting plate 222 to form a first limiting plate 223, and the two first limiting plates 223 are simultaneously located on the outer sides of the two first side plates 12 and abut against the side walls of the first side plates 12 on the corresponding sides; by adopting this structure, after the two first plugging plates are respectively plugged in with the first slots at the corresponding positions, and after the two first limiting plates abut against the outer side walls of the first side plates on the corresponding sides, the horizontal limiting of the main valve bracket and the pilot valve connecting frame can be achieved, so as to This avoids horizontal movement and rotation of the main valve bracket and the pilot valve connecting frame, thereby facilitating the welding and fixing of the main valve bracket and the pilot valve connecting frame, and improving the reliability of the main valve bracket and the pilot valve connecting frame after they are fixed; furthermore, by adopting the above structure, on the basis of the lower ends of the two second side plates being respectively welded and fixed to the upper end of one of the first side plates, the outer edge of the first plug plate can also be welded and fixed to the inner edge of the first slot, and the first limiting plate can be welded and fixed to the outer side wall of the first side plate. By welding and fixing on multiple surfaces, the fixing firmness and reliability of the pilot valve connecting frame and the main valve bracket can be further improved; in addition, in the above structure, the first plug plate and the first slot can also be respectively arranged on the upper end of the first side plate and the lower end of the second side plate, at which time the first connecting plate and the first limiting plate are in an upwardly extending state and are welded and fixed to the side wall of the second side plate.

[0035] Embodiment 2

[0036] See also Figure 3As shown, what is different from the first embodiment is that: the two first limiting plates 223 are simultaneously located on the inner sides of the two first side plates 12 and abut against the side walls of the first side plates 12 on the corresponding sides; by adopting this structure, after the two first plug plates are respectively plugged into the first slots at the corresponding positions, and after the two first limiting plates abut against the inner walls of the first side plates on the corresponding sides, the horizontal limiting of the main valve bracket and the pilot valve connecting frame can also be achieved, so as to avoid the horizontal movement and rotation of the main valve bracket and the pilot valve connecting frame, thereby facilitating the welding and fixing of the main valve bracket and the pilot valve connecting frame, and improving the reliability of the main valve bracket and the pilot valve connecting frame after being fixed. Furthermore, after adopting the above structure, on the basis of the lower ends of the two second side plates being respectively welded and fixed to the upper end of one of the first side plates, the outer edge of the first plug plate can also be welded and fixed to the inner edge of the first slot, and the first limiting plate can be welded and fixed to the inner side wall of the first side plate. Through the welding and fixing method of multiple surfaces, the fixing firmness and reliability of the pilot valve connecting frame and the main valve bracket can be further improved; in addition, in the above structure, the first plug plate and the first slot can also be respectively arranged on the upper end of the first side plate and the lower end of the second side plate. At this time, the first connecting plate and the first limiting plate are in an upwardly extending state and are welded and fixed to the side wall of the second side plate.

[0037] Embodiment 3

[0038] See also Figure 6 , Figure 8 and Fig. 9As shown, what is different from the first embodiment is that: the lower ends of the two second side panels 22 are respectively supported on the upper ends of one of the first side panels 12 and are welded and fixed to the first side panels 12, the middle parts of the upper ends of the two first side panels 12 are provided with second plugging plates 122, and the middle parts of the lower ends of the two second side panels 22 are provided with second slots 224, and the two second plugging plates 122 are respectively inserted into the second slots 224 on the corresponding sides; the lower end of each second side panel 22 and the two sides of the second slots 224 are extended downward by second connecting plates 225 to form second limiting plates 226, and the second limiting plates 226 located on the lower ends of the two second side panels 22 are simultaneously located on the outer sides of the two first side panels 12 and abut against the side walls of the first side panels 12 on the corresponding sides; by adopting this structure, after the two second plugging plates are respectively plugged into the second slots on the corresponding sides, and after each second limiting plate abuts against the outer side wall of the first side panel on the corresponding side, it can be achieved The main valve bracket and the pilot valve connecting frame are horizontally limited to avoid horizontal movement and rotation of the main valve bracket and the pilot valve connecting frame, thereby facilitating the welding and fixing of the main valve bracket and the pilot valve connecting frame, and improving the reliability of the main valve bracket and the pilot valve connecting frame after fixation; furthermore, after adopting the above structure, on the basis of the lower ends of the two second side plates being respectively welded and fixed to the upper end of one of the first side plates, the outer edge of the second plug plate can also be welded and fixed to the inner edge of the second slot, and the second limiting plate can be welded and fixed to the outer side wall of the first side plate. Through the welding and fixing method of multiple surfaces, the fixing firmness and reliability of the pilot valve connecting frame and the main valve bracket can be further improved; in addition, in the above structure, the second plug plate and the second slot can also be respectively arranged on the lower end of the second side plate and the upper end of the first side plate. At this time, the second connecting plate and the second limiting plate are in an upwardly extending state and are welded and fixed to the side wall of the second side plate.

[0039] Embodiment 4

[0040] See also Figure 7As shown, what is different from the third embodiment is that the second limiting plates 226 located on the lower ends of the two second side plates 22 are simultaneously located on the inner sides of the two first side plates 12 and abut against the side walls of the first side plates 12 on the corresponding sides; by adopting this structure, after the two second plug plates are respectively plugged into the second slots at the corresponding positions, and after each second limiting plate abuts against the inner side walls of the first side plates on the corresponding sides, the horizontal limiting of the main valve bracket and the pilot valve connecting frame can also be achieved to avoid the horizontal movement and rotation of the main valve bracket and the pilot valve connecting frame, thereby facilitating the welding and fixing of the main valve bracket and the pilot valve connecting frame, and improving the main valve bracket and the pilot valve connecting frame. Reliability after fixation; furthermore, by adopting the above-mentioned structure, on the basis of the lower ends of the two second side plates being respectively welded and fixed to the upper end of one of the first side plates, the outer edge of the second plug plate can also be welded and fixed to the inner edge of the second slot, and the second limiting plate can be welded and fixed to the inner side wall of the first side plate. By welding and fixing on multiple surfaces, the fixing firmness and reliability of the guide valve connecting frame and the main valve bracket can be further improved; in addition, in the above-mentioned structure, the second plug plate and the second slot can also be respectively arranged on the lower end of the second side plate and the upper end of the first side plate. At this time, the second connecting plate and the second limiting plate are in an upwardly extending state and are welded and fixed to the side wall of the second side plate.

[0041] Embodiment 5

[0042] See also Fig.10 , Fig.12 and Fig.13As shown, the difference from the first embodiment is that the lower ends of the two second side plates 22 are respectively supported on the upper end of one of the first side plates 12 and are welded and fixed to the first side plate 12, one side of the upper ends of the two first side plates 12 is provided with a third slot 123, and the lower ends of the two second side plates 22 are provided with a third plug plate 227, and the two third plug plates 227 are respectively inserted into the third slots 123 on the corresponding sides; the lower end of each third plug plate 227 extends downward through a third connecting plate 228 to form a third limiting plate 229, and the two The third limiting plates 229 are simultaneously located on the outer sides of the two first side plates 12 and abut against the side walls of the first side plates 12 on the corresponding sides; the bottom of the outer end of each third slot 123 is provided with a bend 124 bent toward one side of the third limiting plate 229, and each bend 124 abuts against the outer end of the third limiting plate 229 on the corresponding side; after adopting this structure, after the two third plug-in plates are respectively plugged into the third slots on the corresponding sides, and each third limiting plate abuts against the outer side wall of the first side plate on the corresponding side After the bends on the corresponding sides abut against each other, the horizontal limit of the main valve bracket and the pilot valve connecting frame can be achieved to avoid horizontal movement and rotation of the main valve bracket and the pilot valve connecting frame, thereby facilitating the welding and fixing of the main valve bracket and the pilot valve connecting frame, and improving the reliability of the main valve bracket and the pilot valve connecting frame after fixation; furthermore, after adopting the above structure, on the basis of the lower ends of the two second side plates being respectively welded and fixed to the upper end of one of the first side plates, the outer edge of the third plug plate can also be welded and fixed to the inner edge of the third slot, and the third limiting plate can be welded and fixed to the outer side wall and the bend of the first side plate, and the fixing method of multiple surfaces can further improve the fixing firmness and reliability of the pilot valve connecting frame and the main valve bracket; in addition, in the above structure, the third plug plate and the third slot can also be respectively arranged on the upper end of the first side plate and the lower end of the second side plate, and the bend is arranged on the second side plate, at this time, the third connecting plate and the third limiting plate are in an upwardly extending state and are welded and fixed to the side wall of the second side plate.

[0043] Embodiment 6

[0044] See also Fig.11As shown, what is different from the fifth embodiment is that: the two third limiting plates 229 are simultaneously located on the inner sides of the two first side plates 12 and abut against the side walls of the first side plates 12 on the corresponding sides, and the bottom of the outer end of each third slot 123 is provided with a bend 124 bent toward one side of the third limiting plate 229, and each bend 124 abuts against the outer end of the third limiting plate 229 on the corresponding side; by adopting this structure, after the two third plug-in plates are respectively plugged into the third slots on the corresponding sides, and after each third limiting plate abuts against the inner side wall of the first side plate on the corresponding side and the bend on the corresponding side, the horizontal limitation of the main valve bracket and the pilot valve connecting frame can also be achieved to avoid the horizontal movement and rotation of the main valve bracket and the pilot valve connecting frame, thereby providing the main valve bracket and the pilot valve connecting frame with a horizontal position. Welding fixation brings convenience and can improve the reliability of the main valve bracket and the pilot valve connecting frame after they are fixed; furthermore, after adopting the above structure, on the basis of the lower ends of the two second side plates being respectively welded and fixed to the upper end of one of the first side plates, the outer edge of the third plug plate can also be welded and fixed to the inner edge of the third slot, and the third limiting plate can be welded and fixed to the inner side wall and the bend of the first side plate. Through the welding and fixing method of multiple surfaces, the fixing firmness and reliability of the pilot valve connecting frame and the main valve bracket can be further improved; in addition, in the above structure, the third plug plate and the third slot can also be respectively arranged on the upper end of the first side plate and the lower end of the second side plate, and the bend is arranged on the second side plate. At this time, the third connecting plate and the third limiting plate are in an upwardly extending state and are welded and fixed to the side wall of the second side plate.

[0045] A four-way valve includes a main valve 3, a pilot valve 4 and the above-mentioned combined bracket, a first support plate 11 is welded and fixed to the outer wall of the main valve 3, a second support plate 21 is welded and fixed to the outer wall of the pilot valve 4, and the lower ends of the two second side plates 22 are respectively welded and fixed to the upper end of one of the first side plates 12.

[0046] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A combined bracket, comprising a main valve bracket (1) and a pilot valve connecting bracket (2); the main valve bracket (1) comprises a first supporting plate (11) and two first side plates (12), the two first side plates (12) being arranged on both sides of the first supporting plate (11) in a relative manner, the two first side plates (12) extending vertically upward, the first supporting plate (11) being used for being welded and fixed on the outer wall of the main valve (3); the pilot valve connecting bracket (2) comprises a second supporting plate (21) and two second side plates (22), the two first side plates (12) being arranged on both sides of the second supporting plate (21) in a relative manner, the two second side plates (22) extending vertically upward The second support plate (21) extends downward, the second support plate (21) is used for being welded and fixed on the outer wall of the pilot valve (4); the lower ends of the two second side plates (22) are respectively fixed to the upper end of one of the first side plates (12); an extension portion (23) is provided at one end of the second support plate (21), the extension portion (23) is in an arc shape for fitting with the outer wall of the pilot valve (4), a welding pool hole (231) is provided on the extension portion (23), the welding pool hole (231) is used for allowing the capillary (41) of the pilot valve (4) to pass through, and the capillary (41) is welded and fixed to the extension portion (23) through the solder located in the welding pool hole (231); the characteristics are: The expansion portion (23) is also provided with a molten pool hole (232), the molten pool hole (232) being located at the junction of the expansion portion (23) and the second support plate (21), and the pilot valve (4) is also welded and fixed to the pilot valve connecting frame (2) via solder located in the molten pool hole (232).

2. The combined bracket according to claim 1, characterized in that: The lower ends of the two first side plates (12) are integrally connected to the first support plate (11); the first support plate (11) is in an arc shape for fitting with the outer wall of the main valve (3); a first welding hole (111) is provided on the first support plate (11); the first support plate (11) is fixed to the outer wall of the main valve (3) by welding with solder located in the first welding hole (111); the upper ends of the two second side plates (22) are integrally connected to the second support plate (21); the second support plate (21) is in an arc shape for fitting with the outer wall of the pilot valve (4); a second welding hole (211) is provided on the second support plate (21); the second support plate (21) is fixed to the outer wall of the pilot valve (4) by welding with solder located in the second welding hole (211); the molten pool hole (232) is located between the welding pool hole (231) and the second welding hole (211).

3. The combined bracket according to claim 2, characterized in that: The molten pool hole (232) is rectangular in shape, and the molten pool hole (232) extends along both sides of the expansion portion (23).

4. The combined bracket according to any one of claims 1 to 3, characterized in that: The lower ends of the two second side plates (22) are respectively supported on the upper end of one of the first side plates (12) and are welded and fixed to the first side plates (12); the middle parts of the upper ends of the two first side plates (12) are each provided with a first slot (121); the middle parts of the lower ends of the two second side plates (22) are each provided with a first plugging plate (221); the two first plugging plates (221) are respectively inserted into the first slots (121) on the corresponding side; the lower end of each first plugging plate (221) extends downward through the first connecting plate (222) to form a first limiting plate (223); the two first limiting plates (223) are simultaneously located on the inner side or the outer side of the two first side plates (12) and abut against the side wall of the first side plate (12) on the corresponding side.

5. The combined bracket according to any one of claims 1 to 3, characterized in that: The lower ends of the two second side plates (22) are respectively supported on the upper end of one of the first side plates (12) and are welded and fixed to the first side plates (12); a second plug plate (122) is provided in the middle of the upper ends of the two first side plates (12); a second slot (224) is provided in the middle of the lower ends of the two second side plates (22); the two second plug plates (122) are respectively inserted into the second slots (224) on the corresponding sides; the lower end of each second side plate (22) and both sides of the second slot (224) are extended downward through a second connecting plate (225) to form a second limiting plate (226); the second limiting plates (226) located on the lower ends of the two second side plates (22) are simultaneously located on the inner side or the outer side of the two first side plates (12) and abut against the side wall of the first side plate (12) on the corresponding side.

6. The combined bracket according to any one of claims 1 to 3, characterized in that: The lower ends of the two second side plates (22) are respectively supported on the upper end of one of the first side plates (12) and are welded and fixed to the first side plate (12); one side of the upper ends of the two first side plates (12) is provided with a third slot (123); the lower ends of the two second side plates (22) are provided with a third plugging plate (227); the two third plugging plates (227) are respectively inserted into the third slots (123) on the corresponding sides; the lower end of each of the third plugging plates (227) is connected to the third slot (123) on the corresponding side; The three connecting plates (228) extend downward to form a third limiting plate (229); the two third limiting plates (229) are simultaneously located on the inner side or the outer side of the two first side plates (12) and abut against the side wall of the first side plate (12) on the corresponding side; the bottom of the outer end of each third slot (123) is provided with a bend (124) bent toward one side of the third limiting plate (229), and each bend (124) abuts against the outer end of the third limiting plate (229) on the corresponding side.

7. A four-way valve, characterized in that: The four-way valve comprises a main valve (3), a pilot valve (4) and a combined bracket as described in any one of claims 1 to 6, wherein the first support plate (11) is welded and fixed to the outer wall of the main valve (3), the second support plate (21) is welded and fixed to the outer wall of the pilot valve (4), and the lower ends of the two second side plates (22) are respectively welded and fixed to the upper end of one of the first side plates (12).

Images