A pilot valve turnover cleaning and storage device for an air conditioning four-way valve

Abstract

The present invention discloses a pilot valve turnover cleaning and storage device for an air conditioning four-way valve, and relates to the technical field of pilot valve turnover cleaning auxiliary devices for air conditioning four-way valves. The device comprises a turnover cleaning rack, which comprises an end plate, a vertical rod, a horizontal rod, and a connecting rod. A storage rack for storing the pilot valve is provided near the side between the two end plates. The storage rack is rotatably connected to both end plates near the bottom. There are two storage racks, which are symmetrically distributed with the middle position of the end plates as the symmetry axis. A snap-fit ​​assembly for fixing the storage rack to the two end plates is provided near the top at both ends of the storage rack. The turnover cleaning rack of the present invention replaces the existing turnover box and cleaning basket. When the pilot valve is rotated from the welding process to the cleaning process and then cleaned again, there is no need to replace the tooling, thereby improving the manufacturing efficiency of the pilot valve.

Description

Technical Field

[0001] The present invention relates to the technical field of pilot valve turnover cleaning auxiliary devices for air-conditioning four-way valves, and in particular to a pilot valve turnover cleaning and storage device for air-conditioning four-way valves. Background Art

[0002] Air conditioning four-way valves are used to switch refrigerant flow paths in air conditioning systems, thereby achieving cooling, heating, and defrosting functions throughout the system. These valves consist of a main valve, a pilot valve, and a solenoid coil. The pilot valve manufacturing process requires welding the pilot valve body to the capillary tube and the pilot valve body to the sleeve. After welding, the pilot valve requires cleaning. Currently, the method for transferring pilot valves from the welding process to the cleaning process and then to cleaning involves one worker placing the welded pilot valves on a transfer box. Another worker then transfers the transfer box to the cleaning section. Another worker then places the pilot valves in the transfer box into a cleaning basket. Finally, a robotic arm moves the cleaning basket to the cleaning equipment to complete the pilot valve cleaning. This method of transferring pilot valves from the welding process to the cleaning process and then to cleaning has the following drawbacks: the pilot valves need to be transferred from the transfer box to the cleaning basket, which reduces manufacturing efficiency. Furthermore, two different tooling units, the transfer box and the cleaning basket, are required, resulting in high tooling costs and significant space occupation when idle. Summary of the Invention

[0003] The purpose of the present invention is to provide a pilot valve turnover cleaning and storage device for an air conditioning four-way valve in order to solve the above problems.

[0004] The present invention achieves the above-mentioned purpose through the following technical solutions:

[0005] The cam is secured to the bottom of the two end plates and has two parallel rails, each of which is secured to a position adjacent to the top rails of the two end plates.

[0006] Preferably, the storage rack includes a mounting plate and a round rod, and there are two mounting plates and they are distributed parallel to each other. The two mounting plates are rotatably connected to the corresponding end plates near the bottom through pins, and a round rod is fixedly installed between the two end plates. The round rods are a group of two and are distributed parallel to the horizontal direction. There are at least two groups of round rods, and the round rods in one group are distributed parallel to the round rods in the vertical direction; the pilot valve is stored between two adjacent groups of round rods, and the pilot valves between multiple groups of round rods are staggered; support plates are fixedly provided at the positions corresponding to the end plates and the round rods, and the support plates are distributed in the vertical direction, and there is a gap between the support plates and the round rods.

[0007] Preferably, the locking assembly includes a locking block and a locking rod. The locking block is rotatably connected to the end plate near one end via a pin shaft. A locking groove is provided near the bottom of the locking block. A locking rod is fixedly installed at the end of the mounting plate at a position corresponding to the locking groove of the locking block, and the locking rod is engaged with the locking groove.

[0008] Preferably, a ball is fixedly provided on one end of the engaging rod away from the mounting plate.

[0009] Preferably, a first limiting column is fixedly provided at a position of the end plate above the engaging block, and a second limiting column is fixedly provided at a position of the end plate below the engaging block.

[0010] Preferably, there are multiple turnover cleaning racks, and the multiple turnover cleaning racks can be stacked in sequence in the vertical direction.

[0011] Preferably, the number of the turnover cleaning racks stacked in sequence in the vertical direction is 1 to 6.

[0012] Preferably, a protrusion is fixedly provided on the top of the end plate, a groove is provided on the bottom of the end plate, and a limit block is fixedly provided on the end plate near the center position of the groove; the groove at the bottom of the end plate of one of the turnover cleaning racks cooperates with the protrusion at the top of the end plate of the adjacent lower turnover cleaning rack, and the limit block at the bottom of the end plate of one of the turnover cleaning racks cooperates with the protrusion at the top of the end plate of the adjacent lower turnover cleaning rack.

[0013] Preferably, a handle groove is provided near the top of the end plate.

[0014] Preferably, a connecting rod is fixedly arranged between the two support plates, and there are multiple connecting rods, and the multiple connecting rods are distributed in parallel with equal intervals; through grooves are provided on the support plates, and the through grooves are evenly distributed on the support plates; the end plate is located between the two storage racks and is provided with a through groove.

[0015] The beneficial effects of the present invention are as follows: (1) The turnover cleaning rack of the present invention replaces the two existing tools of turnover box and cleaning basket. When the pilot valve is rotated from the welding process to the cleaning process and then cleaned again, there is no need to replace the tooling, thereby improving the manufacturing efficiency of the pilot valve; (2) The pilot valve only needs one tooling to be rotated from the welding process to the cleaning process and then cleaned again, thereby reducing the cost of using the tooling and occupying less space than the two existing tools; (3) Multiple turnover cleaning racks can be stacked in sequence in the vertical direction, thereby improving the turnover efficiency of the pilot valve; (4) The cooperation between the protrusion and the groove and the protrusion and the limit block ensures that the adjacent upper and lower turnover cleaning racks will not move forward, backward, left, and right in the horizontal direction, and have good stability when stacked. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a first perspective view of the turnover cleaning rack of the present invention;

[0017] Figure 2 This is a second perspective view of the turnover cleaning rack of the present invention;

[0018] Figure 3 A perspective view of the storage rack of the present invention;

[0019] Figure 4 This is a three-dimensional diagram of two turnover cleaning racks stacked in the present invention;

[0020] Figure 5 This is a third perspective view of the turnover cleaning rack of the present invention;

[0021] Figure 6 This is a three-dimensional diagram of multiple turnover cleaning racks stacked in sequence according to the present invention;

[0022] Figure 7 It is a three-dimensional diagram of a pilot valve in the prior art.

[0023] Description of reference numerals:

[0024] 1. Turnover cleaning rack; 11. End plate; 111. Protrusion; 112. Groove; 113. Limit block; 114. Handle slot; 12. Vertical rod; 13. Horizontal rod; 14. Connecting rod;

[0025] 2. Storage rack; 21. Mounting plate; 22. Round rod; 23. Support plate;

[0026] 3. Clamping assembly; 31. Clamping block; 311. Clamping slot; 32. Clamping rod; 321. Ball;

[0027] 4. Pin; 5. Through slot; 61. First limiting column; 62. Second limiting column; 7. Pilot valve; 8. Tray. DETAILED DESCRIPTION

[0028] The present invention will be further described below in conjunction with the accompanying drawings:

[0029] like Figure 1 、 Figure 2 and Figure 5 As shown, the present invention provides a turnover cleaning and storage device for a pilot valve of an air-conditioning four-way valve, comprising a turnover cleaning rack 1, the turnover cleaning rack 1 comprising an end plate 11, a vertical rod 12, a horizontal rod 13 and a connecting rod 14. There are two end plates 11 and they are distributed parallel to each other. A vertical rod 12 is fixedly installed between the two end plates 11 near the bottom position. The vertical rod 12 can be fixedly connected to the end plate 11 by threaded connection or welding. There are two vertical rods 12 and they are distributed parallel to each other on both sides near the end plate 11. A plurality of horizontal rods 13 are fixedly installed between the vertical rods 12. The horizontal rods 13 are fixedly connected to the vertical rods 12 by welding. The horizontal rods 13 ensure the stability of the turnover cleaning rack 1. A connecting rod 14 is fixedly installed between the two end plates 11 near the top position. There are two connecting rods 14 and they are distributed parallel to each other near the center position of the end plate 11. The connecting rod 14 further ensures the stability of the turnover cleaning rack 1. A storage rack 2 for storing pilot valves 7 is located near the sides between the two end plates 11. Near the bottom, the rack 2 is pivotally connected to both end plates 11. Two racks 2 are symmetrically located about the center of the end plates 11. These two racks 2 increase the number of pilot valves 7 that can be stored in one turnover cleaning rack 1. Clamping assemblies 3 are located near the tops of both ends of the racks 2 to secure them to the two end plates 11.

[0030] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 5 and Figure 7As shown, based on the above embodiment, the storage rack 2 further includes mounting plates 21 and round rods 22. Two mounting plates 21 are arranged parallel to each other. Near the bottom, each mounting plate 21 is rotatably connected to the corresponding end plate 11 via a pin 4. A round rod 22 is fixedly mounted between the two end plates 11 and can be welded to the end plates 11. The round rods 22 are arranged in groups of two and arranged horizontally and parallel to each other. There are at least two groups of round rods 22, meaning that two groups of round rods 22 can store one row of pilot valves 7. If three groups of round rods 22 are provided, two rows of pilot valves 7 can be stored. If four groups of round rods 22 are provided, three rows of pilot valves 7 can be stored. Similarly, the same principle can be applied. In this embodiment, three groups of round rods 22 on a storage rack 2 can store two rows of pilot valves 7, which is more efficient than storing a single row of pilot valves 7. One group of round rods 22 is arranged vertically parallel to the other group of round rods 22. The pilot valves 7 are stored between two adjacent groups of round rods 22. The pilot valves 7 are staggered between multiple groups of round rods 22. If there are multiple groups of round rods 22, the two adjacent rows of pilot valves 7 are staggered. This prevents interference between the two rows of pilot valves 7 and improves space utilization. Support plates 23 are fixedly positioned at positions corresponding to the end plates 11 and the round rods 22. The support plates 23 are arranged vertically, with a gap between the support plates 23 and the round rods 22. The support plates 23 provide lateral positioning for the pilot valves 7 stored between the two groups of round rods 22, preventing them from falling from the storage rack 2. The support plates 23 also enhance the stability of the turnover cleaning rack 1.

[0031] like Figure 1 、 Figure 2 and Figure 3 As shown, on the basis of the above embodiment, the locking assembly 3 further includes a locking block 31 and a locking rod 32. The locking block 31 is rotatably connected to the end plate 11 near one end through the pin 4, and a locking groove 311 is provided near the bottom of the locking block 31. A locking rod 32 is fixedly installed at the end of the mounting plate 21 at a position corresponding to the locking groove 311 of the locking block 31, and the locking rod 32 is engaged with the locking groove 311. A ball 321 is fixedly provided at the end of the locking rod 32 away from the mounting plate 21. The ball 321 is convenient for the staff to grasp, so that they can rotate the storage rack 2 relative to the turnover cleaning rack 1 by hand.

[0032] like Figure 1 and Figure 2 As shown, based on the above embodiment, a first limiting post 61 is fixedly provided at a position above the engaging block 31 on the end plate 11, and a second limiting post 62 is fixedly provided at a position below the engaging block 31 on the end plate 11. The first limiting post 61 can limit the upward rotation of the engaging block 31, and the second limiting post 62 can limit the downward rotation of the engaging block 31, thereby ensuring that the engaging block 31 rotates within a certain range.

[0033] like Figure 4 and Figure 6 As shown, based on the above embodiment, multiple turnover cleaning racks 1 are provided, and these racks 1 can be stacked vertically. The number of turnover cleaning racks 1 stacked vertically ranges from 1 to 6. In this embodiment, the number of turnover cleaning racks 1 stacked is 6. This allows more pilot valves 7 to be transferred from the welding process to the cleaning process at a time, improving the turnover efficiency of the pilot valves 7.

[0034] like Figure 1 、 Figure 2 and Figure 4 As shown, on the basis of the above embodiment, a protrusion 111 is further fixedly provided on the top of the end plate 11, a groove 112 is provided on the bottom of the end plate 11, and a limit block 113 is fixedly provided on the end plate 11 near the center position of the groove 112. The groove 112 at the bottom of the end plate 11 of one turnover cleaning rack 1 cooperates with the protrusion 111 at the top of the end plate 11 of the adjacent turnover cleaning rack 1 below, thereby preventing the upper turnover cleaning rack 1 from moving in the front-to-back direction relative to the lower turnover cleaning rack 1 on the horizontal plane (i.e., moving along the width direction of the turnover cleaning rack 1); the limit block 113 at the bottom of the end plate 11 of one turnover cleaning rack 1 cooperates with the protrusion 111 at the top of the end plate 11 of the adjacent turnover cleaning rack 1 below, thereby preventing the upper turnover cleaning rack 1 from moving in the left-to-right direction relative to the lower turnover cleaning rack 1 on the horizontal plane (i.e., moving along the length direction of the turnover cleaning rack 1). Therefore, the cooperation between the protrusion 111 and the groove 112 and the protrusion 111 and the limit block 113 ensures that no horizontal movement occurs between the two adjacent upper and lower turnover cleaning racks 1, and multiple turnover cleaning racks 1 have good stability when stacked.

[0035] like Figure 1 and Figure 2 As shown, based on the above embodiment, a handle groove 114 is further provided near the top of the end plate 11. The handle groove 114 facilitates the staff to take the turnover cleaning rack 1. A connecting rod 14 is fixedly provided between the two support plates 23. There are multiple connecting rods 14, and the multiple connecting rods 14 are evenly spaced and parallel. The connecting rod 14 can improve the stability of the two support plates 23. The support plates 23 are provided with through grooves 5, which are evenly distributed on the support plates 23; the end plate 11 is provided with through grooves 5 between the two storage racks 2. The through grooves 5 reduce the weight of the support plates 23 and the end plates 11 without affecting their strength, ultimately achieving the effect of reducing the weight of the turnover cleaning rack 1.

[0036] like Figures 1 to 7As shown, when the pilot valve 7 in the welding process needs to be transferred to the cleaning process, (1) first, the turnover cleaning rack 1 is placed on the tray 8; (2) then, one storage rack 2 on the turnover cleaning rack 1 is opened first, and the staff member grabs the locking block 31 of the locking assembly 3 and rotates it upward to release the fixed state between the storage rack 2 and the turnover cleaning rack 1, and then the staff member grabs the ball 321 on the storage rack 2 and rotates the storage rack 2 downward so that the storage rack 2 is in a horizontal position (that is, the storage rack 2 and the turnover cleaning rack 1 are approximately at a 90-degree angle). At this time, the storage rack 2 is in the open state. Similarly, open another storage rack 2 on the turnover cleaning rack 1. Storage rack 2; (3) Then, the staff begins to take the pilot valve 7 and place it between the two groups of round rods 22 of a storage rack 2, and then places two rows of pilot valves 7 between the three groups of round rods 22 of a storage rack 2 in turn, with one row of pilot valves 7 staggered relative to the other row of pilot valves 7. Similarly, fill another storage rack 2 with pilot valves 7; (4) Then, the staff grabs the ball 321 on the storage rack 2 and rotates the storage rack 2 upward, so that the storage rack 2 is in a vertical placement state (that is, the storage rack 2 and the turnover cleaning rack 1 are approximately overlapped). At the same time, due to the limiting effect of the support plate 23, the pilot valve 7 on the storage rack 2 is in a stable state, and does not It will be separated from the storage rack 2. Then, the staff member grabs the locking block 31 of the locking assembly 3 and rotates it downward so that the locking groove 311 on the locking block 31 is locked with the locking rod 32 on the storage rack 2, and the storage rack 2 and the turnover cleaning rack 1 are kept in a fixed state again, completing the storage of the pilot valve 7 on a turnover cleaning rack 1; (5) In order to maximize the utilization rate of the space area on the pallet 8, two turnover cleaning racks 1 can be placed side by side on the horizontal plane, and four turnover cleaning racks 1 can be placed side by side on the horizontal plane, that is, eight turnover cleaning racks 1 can be placed on one layer of the pallet 8; the turnover cleaning racks 1 can be stacked in sequence in the vertical direction. Six of them are placed (that is, they can be stacked in six layers), and finally, forty-eight turnover cleaning racks 1 can be placed on a tray 8, which improves the turnover efficiency of the pilot valve 7; (6) When the pilot valve 7 is turned over from the welding process to the cleaning process, the pilot valve 7 needs to be cleaned. At this time, it is only necessary to move the turnover cleaning rack 1 off the tray 8, and the robot places the turnover cleaning rack 1 in the cleaning equipment to clean the pilot valve 7. The turnover cleaning rack 1 can be placed directly in the cleaning equipment without changing the tooling. In this way, the pilot valve 7 only needs one tooling to turn over from the welding process to the cleaning process and then be cleaned, thereby improving the manufacturing efficiency of the pilot valve 7 and reducing the cost of tooling.

[0037] The above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and intent of the present invention, all of which are intended to be within the scope of protection of the present invention. The scope of protection of the present invention is defined by the claims and their equivalents.

Claims

1. A pilot valve turnover cleaning and storage device for an air conditioning four-way valve, characterized by: The lifting of the lifting of the lifting plan is to ensure that the lifting of the lifting plan is maintained at a stable state. The lifting of the lifting plan is maintained at a stable state. The lifting of the lifting plan is maintained at a stable state. The lifting of the lifting plan is maintained at a stable state. The two levers have the trackbacks that form the pivotal connection between the two rails and the two rails and the two rails are connected by a pin to form a loop of linkage.

2. The pilot valve turnover cleaning and storage device for an air conditioning four-way valve according to claim 1, characterized in that: A round ball is fixedly provided on one end of the locking rod away from the mounting plate.

3. The pilot valve turnover cleaning and storage device for an air conditioning four-way valve according to claim 1, characterized in that: The end plate is located above the locking block and is fixedly provided with a first limiting column, and the end plate is located below the locking block and is fixedly provided with a second limiting column.

4. The pilot valve turnover cleaning and storage device for an air conditioning four-way valve according to claim 1, characterized in that: There are multiple turnover cleaning racks, and the multiple turnover cleaning racks can be stacked in sequence in the vertical direction.

5. The pilot valve turnover cleaning and storage device for an air conditioning four-way valve according to claim 4, characterized in that: The number of the turnover cleaning racks stacked in sequence in the vertical direction is 1 to 6.

6. The pilot valve turnover cleaning and storage device for an air conditioning four-way valve according to claim 4 or 5, characterized in that: A protrusion is fixedly provided on the top of the end plate, a groove is provided on the bottom of the end plate, and a limit block is fixedly provided on the end plate near the center position of the groove; the groove at the bottom of the end plate of one of the turnover cleaning racks cooperates with the protrusion at the top of the end plate of the adjacent turnover cleaning rack below, and the limit block at the bottom of the end plate of one of the turnover cleaning racks cooperates with the protrusion at the top of the end plate of the adjacent turnover cleaning rack below.

7. The pilot valve turnover cleaning and storage device for an air conditioning four-way valve according to claim 1, characterized in that: The end plate is provided with a handle groove near the top.

8. The pilot valve turnover cleaning and storage device for an air conditioning four-way valve according to claim 1, characterized in that: A connecting rod is fixedly arranged between the two support plates, and there are multiple connecting rods, which are distributed in parallel with equal intervals; through slots are arranged on the support plates, and the through slots are evenly distributed on the support plates; the end plate is located between the two storage racks and is provided with a through slot.

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