Adjustable electromagnetic expansion valve and using method thereof

Abstract

The invention provides an adjustable electromagnetic expansion valve and a using method thereof. The adjustable electromagnetic expansion valve comprises a valve body; the connecting pipe is mounted on the valve body, an auxiliary pipe is slidably connected into the connecting pipe, two mounting grooves are formed in the connecting pipe, first trapezoidal blocks are slidably connected to the side walls of the mounting grooves, and extension springs are arranged between the tops of the first trapezoidal blocks and the tops of the inner walls of the mounting grooves. And the bottom of the first trapezoidal block is fixedly connected with a connecting rod, the bottom end of the connecting rod penetrates through the mounting groove and is fixedly connected with an arc-shaped clamping block, and a sliding rod penetrates through the left side of the mounting groove. According to the adjustable electromagnetic expansion valve and the using method thereof, the length of the auxiliary pipe can be conveniently adjusted, so that in the mounting process, the position of the connecting end can be adjusted, butt joint with pipelines is facilitated, and the using flexibility is improved.

Description

Technical Field

[0001] The invention relates to the field of electromagnetic expansion valves, and in particular to an adjustable electromagnetic expansion valve and a use method thereof. Background Art

[0002] The electromagnetic expansion valve is a hydraulic fitting that uses electromagnetic pressure to adjust the flow rate of water. During use, it needs to be connected to the pipeline through the connecting end.

[0003] At present, the connectors of existing electromagnetic expansion valves are usually fixed and have no adjustment function. During the installation process, there is a situation where the distance between the electromagnetic expansion valve and the pipeline is too large, resulting in the problem that the connector of the electromagnetic expansion valve cannot be connected to the pipeline, which reduces the flexibility of the electromagnetic expansion valve and is inconvenient for users to use the electromagnetic expansion valve.

[0004] Therefore, it is necessary to provide an adjustable electromagnetic expansion valve and a method of using the same to solve the above technical problems. Summary of the invention

[0005] The invention provides an adjustable electromagnetic expansion valve and a use method thereof, which solves the problem of lack of adjustment function.

[0006] In order to solve the above technical problems, the adjustable electromagnetic expansion valve provided by the present invention comprises: a valve body;

[0007] A connecting pipe, the connecting pipe is installed on the valve body, the interior of the connecting pipe is slidably connected to a secondary pipe, two mounting grooves are installed on the connecting pipe, the side wall of the mounting groove is slidably connected to a first trapezoidal block, a tension spring is provided between the top of the first trapezoidal block and the top of the inner wall of the mounting groove, the bottom of the first trapezoidal block is fixedly connected to a connecting rod, the bottom end of the connecting rod passes through the mounting groove and is fixedly connected to an arc-shaped clamping block, a sliding rod passes through the left side of the mounting groove, and one end of the sliding rod is fixedly connected to a second trapezoidal block;

[0008] An external threaded sleeve, the external threaded sleeve is fixedly connected to the outer surface of the connecting pipe, the outer surface of the external threaded sleeve is threadedly connected to the internal threaded sleeve, one side of the internal threaded sleeve is rotatably connected to a sliding plate, the sliding plate is slidably connected to the outer surface of the connecting pipe, and the right side of the sliding plate is fixedly connected to one end of the sliding rod.

[0009] Preferably, the slope of the inclined surface of the second trapezoidal block is the same as the slope of the first trapezoidal block, and the inclined surface of the second trapezoidal block abuts against the inclined surface of the first trapezoidal block.

[0010] Preferably, the curvature of the arc-shaped clamping block is the same as the curvature of the auxiliary pipe, and a rubber friction pad is installed on the inner arc surface of the arc-shaped clamping block.

[0011] Preferably, a plurality of linearly arranged cross reinforcing ribs are fixedly connected inside the secondary pipe.

[0012] Preferably, it also includes an insulation component, which includes an L-shaped plate, two first side plates, a second side plate and a top cover, the valve body is installed on the L-shaped plate, the two first side plates are respectively connected to the front and rear sides of the L-shaped plate by hinges, and the second side plate is connected to the left side of the L-shaped plate by a hinge.

[0013] Preferably, elastic protrusions are installed on both sides of the top cover, and grooves are provided on the right side of the L-shaped plate and the left side of the second side plate, and the elastic protrusions are adapted to the grooves.

[0014] Preferably, the inner side surfaces of the L-shaped plate, the two first side plates, the second side plate and the top cover are all provided with a thermal insulation coating.

[0015] Preferably, both first side plates are provided with through grooves, a closing plate is slidably connected inside the through groove, a threaded block is fixedly connected to the closing plate, a fixing block is fixedly connected to the first side plate, and a positioning bolt is installed on the fixing block.

[0016] Preferably, the positioning bolt is matched with the threaded block, and the positioning bolt is screwed into the thread of the threaded block to fix the closing plate.

[0017] A method for using an adjustable electromagnetic expansion valve comprises the following steps:

[0018] S1. First, pull the auxiliary pipe to stretch it, adjust the length of the auxiliary pipe, and then install and connect the auxiliary pipe with the pipe to be connected;

[0019] S2, then manually rotate the external threaded sleeve to make the external threaded sleeve move to the right, thereby driving the sliding plate to move to the right, so that the two sliding rods move to the right, driving the two second trapezoidal blocks to squeeze the two first trapezoidal blocks respectively, so that the two first trapezoidal blocks move relative to each other through the force of the inclined surface, so that the two tension springs stretch, and the relative movement of the two first trapezoidal blocks will drive the two connecting rods to move relative to each other, so that the two arc-shaped clamping blocks move relative to each other, clamping and fixing the auxiliary pipe;

[0020] S3. When the external threaded sleeve is rotated in the opposite direction, the external threaded sleeve moves to the left, thereby indirectly moving the two sliding rods to the left, causing the two second trapezoidal blocks to move to the left, and no longer applying force to the first trapezoidal block. At this time, the tension spring rebounds and resets, causing the two first trapezoidal blocks to move apart and reset, thereby causing the two arc-shaped clamping blocks to move apart, loosening the clamping of the auxiliary pipe, and allowing the auxiliary pipe to resume an adjustable state.

[0021] Compared with the related art, the adjustable electromagnetic expansion valve and the use method thereof provided by the present invention have the following beneficial effects:

[0022] The present invention provides an adjustable electromagnetic expansion valve and a method for using the same. First, the auxiliary pipe is pulled to extend the auxiliary pipe, the length of the auxiliary pipe is adjusted, and then the auxiliary pipe is installed and docked with the pipeline to be connected; then, the external threaded sleeve is manually rotated to move the external threaded sleeve to the right, thereby driving the sliding plate to move to the right, so that the two sliding rods move to the right, driving the two second trapezoidal blocks to squeeze the two first trapezoidal blocks respectively, so that the two first trapezoidal blocks move relative to each other through the force of the inclined surface, so that the two tension springs are stretched, and the relative movement of the two first trapezoidal blocks drives the two connecting rods to move relative to each other, so that the two arc clamps When the external threaded sleeve is rotated in the opposite direction, the external threaded sleeve moves to the left, thereby indirectly moving the two sliding rods to the left, causing the two second trapezoidal blocks to move to the left, and no longer applying force to the first trapezoidal block. At this time, the tension spring rebounds and resets, causing the two first trapezoidal blocks to move apart and reset, thereby causing the two arc-shaped clamping blocks to move apart, releasing the clamping of the auxiliary pipe, and allowing the auxiliary pipe to resume an adjustable state, thereby facilitating the adjustment of the length of the auxiliary pipe, so that the position of the connecting end can be adjusted during the installation process, facilitating the docking between the adapter and the pipeline, and increasing the flexibility of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic structural diagram of a first embodiment of an adjustable electromagnetic expansion valve provided by the present invention;

[0024] Figure 2 for Figure 1 A schematic cross-sectional view of the secondary pipe shown;

[0025] Figure 3 for Figure 2 An enlarged schematic diagram of part A is shown;

[0026] Figure 4 A schematic structural diagram of a second embodiment of an adjustable electromagnetic expansion valve provided by the present invention;

[0027] Figure 5 for Figure 4 A schematic diagram of the expansion of the second side panel shown;

[0028] Figure 6 for Figure 5 a bottom view of the first side panel shown;

[0029] Figure 7 for Figure 6 An enlarged schematic diagram of part B is shown.

[0030] Numbers in the figure: 1. valve body, 2. connecting pipe, 3. auxiliary pipe, 4. mounting groove, 5. first trapezoidal block, 6. tension spring, 7. connecting rod, 8. arc clamping block, 9. sliding rod, 10. second trapezoidal block, 11. external threaded sleeve, 12. internal threaded sleeve, 13. sliding plate, 14. rubber friction pad, 15. cross reinforcement rib, 16. L-shaped plate, 17. first side plate, 18. second side plate, 19. top cover, 20. elastic protrusion, 21. groove, 22. thermal insulation coating, 23. through groove, 24. closing plate, 25. threaded block, 26. fixing block, 27. positioning bolt. DETAILED DESCRIPTION

[0031] The present invention will be further described below in conjunction with the accompanying drawings and implementation modes.

[0032] First embodiment

[0033] Please refer to Figure 1 , Figure 2 , Figure 3 ,in, Figure 1 A schematic structural diagram of a first embodiment of an adjustable electromagnetic expansion valve provided by the present invention; Figure 2 for Figure 1 A schematic cross-sectional view of the secondary pipe shown; Figure 3 for Figure 2 The enlarged schematic diagram of part A is shown. The adjustable electromagnetic expansion valve comprises: a valve body 1;

[0034] A connecting pipe 2, the connecting pipe 2 is installed on the valve body 1, the interior of the connecting pipe 2 is slidably connected with a secondary pipe 3, two mounting grooves 4 are installed on the connecting pipe 2, the side wall of the mounting groove 4 is slidably connected with a first trapezoidal block 5, a tension spring 6 is provided between the top of the first trapezoidal block 5 and the top of the inner wall of the mounting groove 4, the bottom of the first trapezoidal block 5 is fixedly connected with a connecting rod 7, the bottom end of the connecting rod 7 passes through the mounting groove 4 and is fixedly connected with an arc-shaped clamping block 8, a sliding rod 9 passes through the left side of the mounting groove 4, and one end of the sliding rod 9 is fixedly connected with a second trapezoidal block 10;

[0035] An external threaded sleeve 11 is fixedly connected to the outer surface of the connecting pipe 2. The outer surface of the external threaded sleeve 11 is threadedly connected to an internal threaded sleeve 12. One side of the internal threaded sleeve 12 is rotatably connected to a sliding plate 13. The sliding plate 13 is slidably connected to the outer surface of the connecting pipe 2. The right side of the sliding plate 13 is fixedly connected to one end of the sliding rod 9.

[0036] The slope of the second trapezoidal block 10 is the same as the slope of the first trapezoidal block 5 , and the slope of the second trapezoidal block 10 abuts against the slope of the first trapezoidal block 5 .

[0037] The curvature of the arc-shaped clamp block 8 is the same as that of the auxiliary pipe 3, and a rubber friction pad 14 is installed on the inner arc surface of the arc-shaped clamp block 8. The setting of the rubber friction pad 14 can increase the friction between the arc-shaped clamp block 8 and the auxiliary pipe 3, thereby improving the stability of the fixation.

[0038] The auxiliary pipe 3 is internally fixedly connected with a plurality of linearly arranged cross reinforcing ribs 15. The arrangement of the cross reinforcing ribs 15 can improve the strength of the auxiliary pipe 3 and its compression resistance, thereby preventing it from being mismatched with the connecting pipe 2 after being deformed by compression.

[0039] A method for using an adjustable electromagnetic expansion valve comprises the following steps:

[0040] S1. First, pull the auxiliary pipe 3 to stretch it, adjust the length of the auxiliary pipe 3, and then install and dock the auxiliary pipe 3 with the pipe to be connected;

[0041] S2, then manually rotate the external threaded sleeve 11 to make the external threaded sleeve 11 move to the right, thereby driving the sliding plate 13 to move to the right, so that the two sliding rods 9 move to the right, driving the two second trapezoidal blocks 10 to squeeze the two first trapezoidal blocks 5 respectively, so that the two first trapezoidal blocks 5 move relative to each other through the force of the inclined surface, so that the two tension springs 6 are stretched, and the relative movement of the two first trapezoidal blocks 5 will drive the two connecting rods 7 to move relative to each other, so that the two arc-shaped clamping blocks 8 move relative to each other, and the auxiliary pipe 3 is clamped and fixed;

[0042] S3. When the external threaded sleeve 11 is rotated in the opposite direction, the external threaded sleeve 11 moves to the left, thereby indirectly moving the two sliding rods 9 to the left, causing the two second trapezoidal blocks 10 to move to the left, and no longer applying force to the first trapezoidal block 5. At this time, the tension spring 6 rebounds and resets, causing the two first trapezoidal blocks 5 to move apart and reset, thereby causing the two arc-shaped clamping blocks 8 to move apart, releasing the clamping of the auxiliary pipe 3, and allowing the auxiliary pipe 3 to resume an adjustable state.

[0043] The working principle of the adjustable electromagnetic expansion valve and the use method thereof provided by the present invention is as follows:

[0044] First, pull the auxiliary pipe 3 to stretch the auxiliary pipe 3, adjust the length of the auxiliary pipe 3, and then install and dock the auxiliary pipe 3 with the pipe to be connected; then manually rotate the external threaded sleeve 11 to move the external threaded sleeve 11 to the right, thereby driving the sliding plate 13 to move to the right, so that the two sliding rods 9 move to the right, driving the two second trapezoidal blocks 10 to squeeze the two first trapezoidal blocks 5 respectively, so that the two first trapezoidal blocks 5 move relative to each other through the force of the inclined surface, thereby stretching the two tension springs 6, and the relative movement of the two first trapezoidal blocks 5 will drive The two connecting rods 7 move relative to each other, thereby causing the two arc-shaped clamping blocks 8 to move relative to each other, clamping and fixing the auxiliary pipe 3; when the external threaded sleeve 11 is rotated in the opposite direction, the external threaded sleeve 11 moves leftward, thereby indirectly causing the two sliding rods 9 to move leftward, causing the two second trapezoidal blocks 10 to move leftward, and no longer applying force to the first trapezoidal block 5. At this time, the tension spring 6 rebounds and resets, causing the two first trapezoidal blocks 5 to move apart and reset, thereby causing the two arc-shaped clamping blocks 8 to move apart, releasing the clamping of the auxiliary pipe 3, and allowing the auxiliary pipe 3 to resume an adjustable state.

[0045] Compared with the related art, the adjustable electromagnetic expansion valve and the use method thereof provided by the present invention have the following beneficial effects:

[0046] First, pull the auxiliary pipe 3 to stretch the auxiliary pipe 3, adjust the length of the auxiliary pipe 3, and then connect the auxiliary pipe 3 to the pipe to be connected; then manually rotate the external threaded sleeve 11 to move the external threaded sleeve 11 to the right, thereby driving the sliding plate 13 to move to the right, so that the two sliding rods 9 move to the right, driving the two second trapezoidal blocks 10 to squeeze the two first trapezoidal blocks 5 respectively, so that the two first trapezoidal blocks 5 move relative to each other through the force of the inclined surface, so that the two tension springs 6 are stretched, and the relative movement of the two first trapezoidal blocks 5 will drive the two connecting rods 7 to move relative to each other, so that the two arc-shaped clamping blocks 8 move relative to each other, and the auxiliary pipe 3 is connected. 3 is clamped and fixed; when the external threaded sleeve 11 is rotated in the opposite direction, the external threaded sleeve 11 moves to the left, thereby indirectly moving the two sliding rods 9 to the left, and the two second trapezoidal blocks 10 move to the left, and no force is applied to the first trapezoidal block 5. At this time, the tension spring 6 rebounds and resets, so that the two first trapezoidal blocks 5 move apart and reset, thereby moving the two arc-shaped clamping blocks 8 apart, releasing the clamping of the auxiliary pipe 3, so that the auxiliary pipe 3 resumes the adjustable state, which is convenient for adjusting the length of the auxiliary pipe 3, so that the position of the connecting end can be adjusted during the installation process, which is convenient for adapting to the docking between the pipeline and increasing the flexibility of use.

[0047] Second embodiment

[0048] Please refer to Figure 4-7Based on the truss double-station wheel insert assembly device provided in the first embodiment of the present application, the second embodiment of the present application proposes another truss double-station wheel insert assembly device. The second embodiment is only a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the independent implementation of the first embodiment.

[0049] Specifically, the difference of the truss double-station wheel insert assembly equipment provided in the second embodiment of the present application is that it also includes an insulation component, which includes an L-shaped plate 16, two first side plates 17, a second side plate 18 and a top cover 19, and the valve body 1 is installed on the L-shaped plate 16, and the two first side plates 17 are respectively connected to the front and rear sides of the L-shaped plate 16 by hinges, and the second side plate 18 is connected to the left side of the L-shaped plate 16 by a hinge.

[0050] Elastic protrusions 20 are installed on both sides of the top cover 19 , and grooves 21 are opened on the right side of the L-shaped plate 16 and the left side of the second side plate 18 , and the elastic protrusions 20 are adapted to the grooves 21 .

[0051] The provision of the elastic protrusion 20 and the groove 21 facilitates the installation of the top cover 19 , and the top cover 19 can be installed on the L-shaped plate 16 and the second side plate 18 by snap-fitting.

[0052] The inner sides of the L-shaped plate 16 , the two first side plates 17 , the second side plate 18 and the top cover 19 are all provided with a thermal insulation coating 22 .

[0053] The two first side plates 17 are each provided with a through slot 23 , a closing plate 24 is slidably connected inside the through slot 23 , a threaded block 25 is fixedly connected to the closing plate 24 , a fixing block 26 is fixedly connected to the first side plate 17 , and a positioning bolt 27 is installed on the fixing block 26 .

[0054] By manually rotating the positioning bolt 27 to separate it from the threaded block 25, the closing plate 24 is then unfastened and falls by gravity, thereby opening the through slot 23, so that the valve body 1 can be ventilated and heat-dissipated at normal temperature or in hot weather.

[0055] The positioning bolt 27 is matched with the threaded block 25 , and the positioning bolt 27 is screwed into the thread of the threaded block 25 to fix the closing plate 24 .

[0056] Compared with the related art, the adjustable electromagnetic expansion valve and the use method thereof provided by the present invention have the following beneficial effects:

[0057] The valve body 1 is installed on the L-shaped plate 16, and then the two first side plates 17 and the second side plates 18 are flipped over to be in a vertical state, and then the top cover 19 is installed to be assembled into a closed insulation component, so that the valve body 1 can be insulated and protected to avoid freezing in extremely cold weather. After the insulation component is disassembled, it is convenient for the staff to maintain the valve body 1 and increase the operating space.

[0058] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An adjustable electromagnetic expansion valve, It is characterized in that include: Valve body; A connecting pipe, the connecting pipe is installed on the valve body, the interior of the connecting pipe is slidably connected to a secondary pipe, two mounting grooves are installed on the connecting pipe, the side wall of the mounting groove is slidably connected to a first trapezoidal block, a tension spring is provided between the top of the first trapezoidal block and the top of the inner wall of the mounting groove, the bottom of the first trapezoidal block is fixedly connected to a connecting rod, the bottom end of the connecting rod passes through the mounting groove and is fixedly connected to an arc-shaped clamping block, a sliding rod passes through the left side of the mounting groove, and one end of the sliding rod is fixedly connected to a second trapezoidal block; An external threaded sleeve, the external threaded sleeve is fixedly connected to the outer surface of the connecting pipe, the outer surface of the external threaded sleeve is threadedly connected to the internal threaded sleeve, one side of the internal threaded sleeve is rotatably connected to a sliding plate, the sliding plate is slidably connected to the outer surface of the connecting pipe, and the right side of the sliding plate is fixedly connected to one end of the sliding rod.

2. The adjustable electromagnetic expansion valve according to claim 1, It is characterized in that The inclined surface of the second trapezoidal block has the same inclination as the inclined surface of the first trapezoidal block, and the inclined surface of the second trapezoidal block abuts against the inclined surface of the first trapezoidal block.

3. The adjustable electromagnetic expansion valve according to claim 1, It is characterized in that The curvature of the arc-shaped clamping block is the same as that of the auxiliary pipe, and a rubber friction pad is installed on the inner arc surface of the arc-shaped clamping block.

4. The adjustable electromagnetic expansion valve according to claim 1, It is characterized in that The interior of the secondary pipe is fixedly connected with a plurality of linearly arranged cross reinforcing ribs.

5. The adjustable electromagnetic expansion valve according to claim 1, It is characterized in that It also includes an insulation component, which includes an L-shaped plate, two first side plates, a second side plate and a top cover. The valve body is installed on the L-shaped plate. The two first side plates are respectively connected to the front and rear sides of the L-shaped plate by hinges, and the second side plate is connected to the left side of the L-shaped plate by a hinge.

6. The adjustable electromagnetic expansion valve according to claim 5, It is characterized in that Elastic protrusions are installed on both sides of the top cover, and grooves are opened on the right side of the L-shaped plate and the left side of the second side plate, and the elastic protrusions are adapted to the grooves.

7. The adjustable electromagnetic expansion valve according to claim 5, It is characterized in that The inner sides of the L-shaped plate, the two first side plates, the second side plate and the top cover are all provided with a thermal insulation coating.

8. The adjustable electromagnetic expansion valve according to claim 5, It is characterized in that The two first side plates are both provided with through slots, the interior of the through slots is slidably connected with a closing plate, the closing plate is fixedly connected with a threaded block, the first side plates are fixedly connected with a fixing block, and the fixing block is installed with a positioning bolt.

9. The adjustable electromagnetic expansion valve according to claim 8, It is characterized in that The positioning bolt is matched with the threaded block, and the positioning bolt is screwed into the thread of the threaded block to fix the closing plate.

10. A method for using an adjustable electromagnetic expansion valve. It is characterized in that The following steps are involved: S1. First, pull the auxiliary pipe to stretch it, adjust the length of the auxiliary pipe, and then install and connect the auxiliary pipe with the pipe to be connected; S2, then manually rotate the external threaded sleeve to make the external threaded sleeve move to the right, thereby driving the sliding plate to move to the right, so that the two sliding rods move to the right, driving the two second trapezoidal blocks to squeeze the two first trapezoidal blocks respectively, so that the two first trapezoidal blocks move relative to each other through the force of the inclined surface, so that the two tension springs stretch, and the relative movement of the two first trapezoidal blocks will drive the two connecting rods to move relative to each other, so that the two arc-shaped clamping blocks move relative to each other, clamping and fixing the auxiliary pipe; S3. When the external threaded sleeve is rotated in the opposite direction, the external threaded sleeve moves to the left, thereby indirectly moving the two sliding rods to the left, causing the two second trapezoidal blocks to move to the left, and no longer applying force to the first trapezoidal block. At this time, the tension spring rebounds and resets, causing the two first trapezoidal blocks to move apart and reset, thereby causing the two arc-shaped clamping blocks to move apart, loosening the clamping of the auxiliary pipe, and allowing the auxiliary pipe to resume an adjustable state.

Images