Electronic expansion valve convenient to install

Abstract

The utility model discloses an electronic expansion valve convenient to install, and belongs to the technical field of electronic expansion valves, the electronic expansion valve convenient to install comprises an expansion valve assembly and an installation assembly, the expansion valve assembly comprises a valve body, a connecting pipe is installed in the valve body, a limiting groove is formed in the inner wall of the connecting pipe, a magnet piece is installed in the valve body, and a limiting shaft is clamped in the limiting groove; a connecting rod is fixedly connected to the lower end of the limiting shaft, a lead screw is fixedly connected to the lower end of the connecting rod, a sealing plug is fixedly connected to the lower end of the lead screw, a sealing cover is detachably connected to the lower end of the valve body, and a liquid inlet pipe is fixedly connected to the lower end of the sealing cover; the expansion valve assembly is matched with the mounting assembly, so that the expansion valve is convenient to disassemble, assemble and replace, the use convenience of the expansion valve is improved, meanwhile, through mutual matching of the structures, liquid is convenient to filter, the sealing performance is guaranteed, and the practicability of the expansion valve can be enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic expansion valves, in particular to an electronic expansion valve which is easy to install. Background Art

[0002] An electronic expansion valve is a device used to be installed in an air conditioner to control the flow rate of refrigerant. Existing expansion valves are mostly installed by welding, so it is inconvenient to disassemble and assemble. Therefore, it is necessary to provide an electronic expansion valve that is easy to disassemble and assemble. In addition, the sealing of existing electronic expansion valves is weak, which may cause refrigerant to enter the valve body and cause damage during use, and may also cause the valve body to be blocked. Therefore, it is necessary to provide an expansion valve that can both enhance the sealing and avoid valve body blockage. Utility Model Content

[0003] The embodiment of the utility model provides an electronic expansion valve that is easy to install, aiming to solve the problem that the sealing performance of the existing expansion valve needs to be improved and it is not easy to disassemble and replace.

[0004] To achieve the above-mentioned purpose, the utility model provides an electronic expansion valve that is easy to install, including an expansion valve assembly and a mounting assembly;

[0005] Wherein, the expansion valve assembly comprises a valve body, a connecting pipe is installed inside the valve body, a limiting groove is provided on the inner wall of the connecting pipe, a magnetic sheet is installed inside the valve body, a limiting shaft is clamped inside the limiting groove, a connecting rod is fixedly connected to the lower end of the limiting shaft, a screw rod is fixedly connected to the lower end of the connecting rod, a sealing plug is fixedly connected to the lower end of the screw rod, a sealing cover is detachably connected to the lower end of the valve body, a liquid inlet pipe is fixedly connected to the lower end of the sealing cover, a lifting groove is provided inside the liquid inlet pipe, a liquid outlet pipe is connected to one side of the liquid inlet pipe, and the lifting groove and the liquid outlet pipe are communicated;

[0006] The mounting assembly includes a filter element mounted on the lower end of a liquid inlet pipe, the lower end of the filter element is connected to a filter plate, the lower end of the liquid inlet pipe is movably connected to two clips, both ends of the two clips are fixedly connected to two ear blocks, the surfaces of the two ear blocks are provided with a first screw hole, the inner part of the first screw hole is threadedly connected to a first bolt, and one end of the first bolt is threadedly connected to a first nut.

[0007] As a preferred solution of the utility model, a plurality of second screw holes are provided at the lower end of the valve body and the upper end of the sealing cover, a sealing sheet is connected between the valve body and the sealing cover, and second bolts are threadedly connected inside the plurality of second screw holes.

[0008] As a preferred solution of the utility model, a clamping block is fixedly connected to the lower end of the screw rod, a clamping groove is formed at the upper end of the sealing plug, and the clamping block is clamped inside the clamping groove.

[0009] As a preferred solution of the utility model, a sealing sleeve is fixedly connected to the lower end of the liquid inlet pipe, and two annular grooves are provided on the inner wall of the sealing sleeve.

[0010] As a preferred solution of the utility model, two convex ridges are fixedly connected to the side surface of the filter element, and the two convex ridges are both clamped in the inner part of the annular groove.

[0011] As a preferred solution of the utility model, a fixing rod is fixedly connected between the filter element and the filter plate.

[0012] As a preferred solution of the utility model, the sealing cover and the sealing sheet are both made of rubber.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. When installing the expansion valve, firstly, the sealing sleeve at the lower end of the valve body and the inner pipe of the air conditioner are sleeved with each other, and then two clips are sleeved on the side surface of the sealing sleeve, and then the first bolt is screwed with the nut to squeeze the sealing sleeve, and then the liquid outlet pipe is connected with another pipe. When the valve body is energized, the magnetic sheet cooperates with the coil to control the rotation of the limit shaft, and then the connecting rod and the screw rod can be controlled to rise and fall along the liquid inlet pipe, so as to adjust the liquid outlet volume. When disassembling, only the first bolt and the second bolt need to be taken out, so that the clip, the valve body, the sealing cover, the magnetic sheet and the limit shaft can be disassembled. Compared with the expansion valve in the prior art, the utility model can facilitate the disassembly and assembly of the expansion valve through the cooperation of the above structures, thereby improving the convenience of disassembly and assembly of the expansion valve;

[0015] 2. When in use, the liquid enters through the liquid inlet pipe and flows out through the liquid outlet pipe. At this time, the liquid can be filtered by the filter element in combination with the filter plate. At the same time, the rubber sealing plug in combination with the sealing sheet can enhance the sealing of the expansion valve. Compared with the expansion valve structure in the prior art, the utility model can not only filter the liquid through the cooperation of the above structures, but also enhance the sealing, thereby enhancing the practicality of the sealing valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a disassembly diagram of the valve body structure of the utility model;

[0018] Figure 3 This is a disassembly diagram of the sealing plug structure of the utility model;

[0019] Figure 4 This is a disassembled diagram of the expansion valve assembly structure of the utility model;

[0020] Figure 5 This is a disassembly diagram of the installation component structure of the utility model.

[0021] In the figure: 100, expansion valve assembly; 101, valve body; 102, connecting pipe; 103, limiting groove; 104, magnet sheet; 105, limiting shaft; 106, connecting rod; 107, screw rod; 108, sealing plug; 109, sealing cover; 110, liquid inlet pipe; 120, lifting groove; 130, liquid outlet pipe; 111, second screw hole; 112, sealing sheet; 113, second bolt; 121, clamping block; 122, clamping groove; 131, sealing sleeve; 132, annular groove; 200, mounting assembly; 201, filter element; 202, filter plate; 203, clamping sheet; 204, ear block; 205, first screw hole; 206, first bolt; 207, first nut; 211, convex ridge; 221, fixing rod. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-5 , the utility model provides an electronic expansion valve that is easy to install, including an expansion valve assembly 100 and an installation assembly 200;

[0024] The expansion valve assembly 100 includes a valve body 101, a connecting pipe 102 is installed inside the valve body 101, a limiting groove 103 is provided on the inner wall of the connecting pipe 102, a magnetic sheet 104 is installed inside the valve body 101, a limiting shaft 105 is clamped inside the limiting groove 103, a connecting rod 106 is fixedly connected to the lower end of the limiting shaft 105, a screw rod 107 is fixedly connected to the lower end of the connecting rod 106, a sealing plug 108 is fixedly connected to the lower end of the screw rod 107, a sealing cover 109 is detachably connected to the lower end of the valve body 101, a liquid inlet pipe 110 is fixedly connected to the lower end of the sealing cover 109, a lifting groove 120 is provided inside the liquid inlet pipe 110, a liquid outlet pipe 130 is connected to one side of the liquid inlet pipe 110, and the lifting groove 120 is connected to the liquid outlet pipe 110;

[0025] The mounting assembly 200 includes a filter element 201 mounted on the lower end of the liquid inlet pipe 110, the lower end of the filter element 201 is connected to a filter plate 202, the lower end of the liquid inlet pipe 110 is movably connected to two clips 203, both ends of the two clips 203 are fixedly connected to two ear blocks 204, the surfaces of the two ear blocks 204 are provided with a first screw hole 205, the internal thread of the first screw hole 205 is connected to a first bolt 206, and one end of the first bolt 206 is threadedly connected to a first nut 207.

[0026] In a specific embodiment, the expansion valve assembly 100 is provided in cooperation with the installation assembly 200, which not only facilitates the disassembly, assembly and replacement of the expansion valve, but also improves the convenience of use of the expansion valve. At the same time, the above-mentioned structures cooperate with each other to facilitate the filtration of the liquid and ensure the sealing, thereby enhancing the practicality of the expansion valve. When in use, the sealing sleeve 131 and the liquid inlet pipe 110 are first connected to the inner pipe of the air conditioner respectively. At this time, the clip 203 is sleeved on the side surface of the sealing sleeve 131 and fastened by the first bolt 206 and the first nut 207, thereby enhancing the installation strength and sealing of the expansion valve. When in use, the magnetic sheet 104 cooperates with the coil to be energized. Thereby, the rotation of the limit shaft 105 can be controlled. As the limit shaft 105, the connecting rod 106 and the screw rod 107 rotate, the lifting and lowering of the sealing plug 108 can be controlled, so that the liquid inlet amount can be adjusted. At the same time, the sealing sheet 112 cooperates with the sealing plug 108 to enhance the overall sealing of the expansion valve. When disassembling, only the first bolt 206 and the second bolt 113 need to be removed to disassemble the valve body 101, the sealing cover 109 and the limit shaft 105, thereby improving the convenience of disassembly and assembly of the expansion valve. At this time, the filter element 201 cooperates with the filter plate 202 to filter the liquid, thereby avoiding clogging of the expansion valve and improving the convenience of using the expansion valve.

[0027] See also Figure 2-Figure 4 A plurality of second screw holes 111 are provided at the lower end of the valve body 101 and the upper end of the sealing cover 109 , a sealing sheet 112 is connected between the valve body 101 and the sealing cover 109 , and second bolts 113 are threadedly connected inside the plurality of second screw holes 111 .

[0028] In a specific embodiment, the second bolt 113 is threadedly connected inside the second screw hole 111 to enhance the connection strength between the sealing cover 109 and the valve body 101 , and cooperates with the sealing sheet 112 to improve the sealing performance of the expansion valve.

[0029] See also Figure 2-Figure 4 The lower end of the screw rod 107 is fixedly connected with a clamping block 121 , and the upper end of the sealing plug 108 is provided with a clamping groove 122 , and the clamping block 121 is clamped inside the clamping groove 122 .

[0030] In a specific embodiment, the clamping block 121 is clamped in the clamping groove 122 to facilitate the disassembly and assembly of the sealing plug 108 and the screw rod 107 .

[0031] See also Figure 2-Figure 4 A sealing sleeve 131 is fixedly connected to the lower end of the liquid inlet pipe 110 , and two annular grooves 132 are formed on the inner wall of the sealing sleeve 131 .

[0032] In a specific embodiment, the sealing sleeve 131 cooperates with the annular groove 132 to further enhance the sealing performance of the expansion valve.

[0033] See also Figure 2-Figure 5 Two convex ridges 211 are fixedly connected to the side surface of the filter element 201 , and the two convex ridges 211 are both clamped in the inner part of the annular groove 132 .

[0034] In a specific embodiment, the convex ridge 211 is clamped in the annular groove 132 to improve the convenience of disassembly, assembly and replacement of the filter element 201.

[0035] See also Figure 5 A fixing rod 221 is fixedly connected between the filter element 201 and the filter plate 202 .

[0036] In a specific embodiment, the fixing rod 221 is convenient for enhancing the connection strength between the filter element 201 and the filter plate 202 .

[0037] See also Figure 2-Figure 4 The sealing cover 109 and the sealing sheet 112 are both made of rubber.

[0038] In a specific embodiment, the sealing cover 109 and the sealing sheet 112 made of rubber can enhance the tightness of the overall structure of the expansion valve, and further enhance the convenience of use of the expansion valve.

[0039] Working principle: When in use, first connect the sealing sleeve 131 and the liquid inlet pipe 130 to the inner pipe of the air conditioner respectively, and at the same time, set the clip 203 on the side surface of the sealing sleeve 131, and then tighten it through the first bolt 206 and the first nut 207 to enhance the installation strength and sealing of the expansion valve. At the same time, the magnetic sheet 104 cooperates with the coil to control the rotation of the limit shaft 105. As the limit shaft 105, the connecting rod 106 and the screw rod 107 rotate, the lifting and lowering of the sealing plug 108 can be controlled to adjust the liquid inlet amount. At the same time, the sealing sheet 112 cooperates with the sealing plug 108 to enhance the overall sealing of the expansion valve. When disassembling, only the first bolt 206 and the second bolt 113 need to be removed to disassemble the valve body 101, the sealing cover 109 and the limit shaft 105, thereby improving the convenience of disassembly and assembly of the expansion valve. At this time, the filter element 201 cooperates with the filter plate 202 to filter the liquid to avoid clogging of the expansion valve, thereby improving the convenience of use of the expansion valve.

[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electronic expansion valve that is easy to install, characterized in that: include: An expansion valve assembly (100), the expansion valve assembly (100) comprising a valve body (101), a connecting pipe (102) being installed inside the valve body (101), a limiting groove (103) being provided on the inner wall of the connecting pipe (102), a magnetic sheet (104) being installed inside the valve body (101), a limiting shaft (105) being clamped inside the limiting groove (103), a connecting rod (106) being fixedly connected to the lower end of the limiting shaft (105), and the connecting rod (106) The lower end of the valve body (101) is fixedly connected to a screw rod (107), the lower end of the screw rod (107) is fixedly connected to a sealing plug (108), the lower end of the valve body (101) is detachably connected to a sealing cover (109), the lower end of the sealing cover (109) is fixedly connected to a liquid inlet pipe (110), a lifting groove (120) is provided inside the liquid inlet pipe (110), one side of the liquid inlet pipe (110) is connected to a liquid outlet pipe (130), and the lifting groove (120) and the liquid outlet pipe (130) are in communication; The mounting assembly (200) comprises a filter element (201) mounted on the lower end of a liquid inlet pipe (110), the lower end of the filter element (201) being connected to a filter plate (202), the lower end of the liquid inlet pipe (110) being movably connected to two clips (203), both ends of the two clips (203) being fixedly connected to two ear blocks (204), the surfaces of the two ear blocks (204) being provided with a first screw hole (205), the interior of the first screw hole (205) being threadedly connected to a first bolt (206), and one end of the first bolt (206) being threadedly connected to a first nut (207).

2. An electronic expansion valve that is easy to install according to claim 1, characterized in that: A plurality of second screw holes (111) are provided at the lower end of the valve body (101) and the upper end of the sealing cover (109); a sealing sheet (112) is connected between the valve body (101) and the sealing cover (109); and second bolts (113) are threadedly connected inside the plurality of second screw holes (111).

3. The electronic expansion valve that is easy to install according to claim 1 is characterized in that: The lower end of the screw rod (107) is fixedly connected with a clamping block (121), the upper end of the sealing plug (108) is provided with a clamping groove (122), and the clamping block (121) is clamped inside the clamping groove (122).

4. The electronic expansion valve that is easy to install according to claim 1 is characterized in that: The lower end of the liquid inlet pipe (110) is fixedly connected to a sealing sleeve (131), and the inner wall of the sealing sleeve (131) is provided with two annular grooves (132).

5. The electronic expansion valve that is easy to install according to claim 1 is characterized in that: Two convex ridges (211) are fixedly connected to the side surface of the filter element (201), and the two convex ridges (211) are both clamped inside the annular groove (132).

6. The electronic expansion valve that is easy to install according to claim 1 is characterized in that: A fixing rod (221) is fixedly connected between the filter element (201) and the filter plate (202).

7. The electronic expansion valve that is easy to install according to claim 1 is characterized in that: The sealing cover (109) and the sealing sheet (112) are both made of rubber.

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