Quick release tool for drying agent of heat pump
By designing a quick-release fixture for heat pump desiccants with a clamping mechanism and a pressure relief device, the problems of laborious and easily damaged traditional disassembly fixtures are solved, enabling quick and labor-saving disassembly of the desiccant and improving the practicality of the device.
Patent Information
- Application Number
- CN202520678088.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-11
- Publication Date
- 2026-03-03
- Estimated Expiration
- 2035-04-11
AI Technical Summary
Traditional desiccant dismantling tools are laborious to remove the elastic retaining ring and pose a risk of scratching the gas-liquid separator, and the desiccant replacement efficiency is low.
Design a quick-release tooling for heat pump desiccant that includes a clamping mechanism, a pressure relief device, and a disassembly structure. The clamping mechanism facilitates disassembly, the pressure relief device releases residual pressure in the gas-liquid separator, reducing the total number of tools required, and the disassembly structure enables rapid disassembly of the desiccant.
It improves the efficiency of desiccant disassembly, reduces operational difficulty and tool requirements, and lowers the risk of damage to the gas-liquid separator.
Smart Images

Figure CN223961234U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of automotive heat pump repair, and in particular to a quick-release tooling for heat pump desiccant. Background Technology
[0002] The desiccant in the gas-liquid separator of a new energy vehicle heat pump system is a crucial component. It dries the refrigerant gas before it enters the compressor, preventing liquid from entering and damaging the compressor's scroll blades due to liquid slugging. Therefore, the desiccant needs to be replaced regularly. Traditional desiccant disassembly tools use a threaded design with a handle, but in practice, these older tools only have a threaded handle. Therefore, before disassembly, pliers are needed to remove the elastic retaining ring. Because the gas-liquid separator is pressurized after heat pump operation, the elastic retaining ring adheres tightly to the separator, increasing friction. This makes removing the retaining ring with pliers very difficult and carries the risk of loosening and scratching the gas-liquid separator. Furthermore, the desiccant can only be removed after the retaining ring is removed using the older tools. The desiccant is sealed to the gas-liquid separator with two O-rings, making it very difficult to pull out directly with the threaded handle. This results in inefficient desiccant replacement. Utility Model Content
[0003] To solve the above-mentioned technical problems, this utility model provides a quick-release tooling for heat pump desiccant. The clamping mechanism itself is easy to disassemble, which is used in conjunction with the pressure relief device and the disassembly structure to reduce the total number of tools required for equipment construction. The pressure relief device, in conjunction with the clamping mechanism, presses down the desiccant to release the residual pressure in the gas-liquid separator after use, making the removal of the elastic retaining ring easier. Then, the desiccant can be quickly removed through the disassembly structure and the clamping mechanism, thus improving the practicality of the device.
[0004] This utility model discloses a quick-release tooling for heat pump desiccants; it includes a clamping mechanism, a pressure relief device, and a disassembly structure. The clamping mechanism is connected to the pressure relief device or the disassembly structure. The clamping mechanism itself facilitates disassembly, which, in conjunction with the pressure relief device and the disassembly structure, reduces the total number of tools required for equipment construction. The pressure relief device, in conjunction with the clamping mechanism, presses down the desiccant to release the residual pressure in the gas-liquid separator after use, making the removal of the elastic retaining ring easier. Then, the desiccant is quickly disassembled through the disassembly structure and the clamping mechanism, improving the practicality of the device.
[0005] Preferably, the clamping mechanism includes a threaded connector, a support frame, a bottom fixing bolt, a drive shaft, an upper connecting bolt, a rotary handle, a protective sleeve, and a lifting drive rod. The threaded connector has a circular hole into which the lifting drive rod can be inserted. A set of threaded holes is provided on each of the left and right sides of the threaded connector. The lower part of the support frame is fixed to the threaded connector by the bottom fixing bolt. The upper part of the lifting drive rod extends into the support frame. A set of circular holes is provided on the upper part of the lifting drive rod, and the drive shaft is inserted into the circular holes on the upper part of the lifting drive rod. The upper left and right sides of the support frame are respectively connected by a set of upper connecting bolts and a set of rotary handles. The lower part of the connecting end of the rotary handle is fitted onto the left and right parts of the drive shaft, and the sheath is fitted onto the grip ends of the two sets of rotary handles. The lower end face of the lifting drive rod is provided with a threaded hole. By fitting the sheath onto the grip ends of the two sets of rotary handles, the operator's grip comfort is improved, and the possibility of hand injuries during the gripping of the two sets of rotary handles is reduced. The height of the lifting drive rod can be controlled by pressing down or raising the sheath, which facilitates the use of the pressure relief device and disassembly mechanism to complete the balance and disassembly of residual air pressure. At the same time, the threaded connection seat facilitates the quick connection and disassembly of the clamping mechanism with the pressure relief device and disassembly structure, improving the practicality of the device.
[0006] Preferably, the pressure relief device includes a side plate, a first tooling base plate, and a pressure block. The first tooling base plate is connected to the lower end face of the side plate, and a threaded hole is provided on the top end face of the side plate. The clamping mechanism is connected to the upper end face of the side plate through a threaded connecting seat. A screw is provided on the upper end face of the pressure block, and the pressure block is connected to the lower end face of the lifting drive rod. The side plate and the first tooling base plate provide the main body support. The pressure block is connected to the lower end face of the lifting drive rod through the screw on its own upper end face. Then, the pressure block is placed on the desiccant. The operator lifts the protective sleeve upward to make the pressure block press down on the desiccant, releasing the residual pressure in the gas-liquid separator after use. This reduces the friction between the elastic retaining ring and the gas-liquid separator, reduces the difficulty of removing the retaining ring with the snap ring pliers, and improves the practicality of the device.
[0007] Preferably, the disassembly structure includes a second tooling base plate, support columns, and screw columns. A set of support columns is installed on the left and right sides of the lower end face of the second tooling base plate, and a threaded hole is provided in the middle of the upper end face of the second tooling base plate. The upper part of the screw column is provided with an external thread that matches the threaded hole of the lifting drive rod. Support columns of different heights are selected according to different vehicle models. The clamping mechanism is connected to the threaded hole on the second tooling base plate, and the screw column is tightened on the desiccant cover. Then, the support column is brought into contact with the surface of the gas-liquid separator. After that, the upper part of the screw column is connected to the lower part of the lifting drive rod. Then, the protective sleeve is rotated to lift the desiccant upwards, which improves the practicality of the device.
[0008] Compared with the prior art, the beneficial effects of this utility model are as follows: the clamping mechanism itself is easy to disassemble, so as to cooperate with the pressure relief device and the disassembly structure operation, reducing the total number of tools required for equipment construction; the pressure relief device cooperates with the clamping mechanism to press down the desiccant, releasing the residual pressure in the gas-liquid separator after use, making the elastic retaining ring easier to disassemble; and then the desiccant can be quickly disassembled through the disassembly structure and the clamping mechanism, improving the practicality of the device. Attached Figure Description
[0009] Figure 1 This is an isometric structural diagram of the clamping mechanism and pressure relief device of this utility model;
[0010] Figure 2 This is an exploded structural diagram of the clamping mechanism and pressure relief device of this utility model;
[0011] Figure 3 This is a cross-sectional structural diagram of the clamping mechanism and disassembly structure of this utility model;
[0012] Figure 4 This is an exploded structural diagram of the clamping mechanism and disassembly structure of this utility model;
[0013] The following are marked in the attached diagram: 1. Side plate; 2. First tooling base plate; 3. Pressure block; 4. Threaded connection seat; 5. Support frame; 6. Bottom fixing bolt; 7. Drive shaft; 8. Upper connecting bolt; 9. Rotary handle; 10. Protective sleeve; 11. Lifting drive rod; 12. Second tooling base plate; 13. Support column; 14. Screw column. Detailed Implementation
[0014] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.
[0015] Example 1
[0016] Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the clamping mechanism is connected to the pressure relief device or the disassembly structure;
[0017] First, the main support is provided by the side plate 1 and the first tooling base plate 2. The pressure block 3 is connected to the lower end face of the lifting drive rod 11 through the screw on its upper end face. Then, the pressure block 3 is placed on the desiccant. The operator lifts the protective sleeve 10 upward so that the pressure block 3 presses down on the desiccant, releasing the residual pressure in the gas-liquid separator after use, reducing the friction between the elastic retaining ring and the gas-liquid separator, and reducing the difficulty of the operation when the retaining ring is removed by the snap ring pliers. Then, the support column 13 of different heights is selected according to different vehicle models. The clamping mechanism is connected to the threaded hole on the second tooling base plate 12. The screw column 14 is screwed onto the desiccant cover. Then, the support column 13 is brought into contact with the surface of the gas-liquid separator. Then, the upper part of the screw column 14 is connected to the lower part of the lifting drive rod 11. Then, the protective sleeve 10 is rotated to lift the desiccant upward.
[0018] The clamping mechanism includes a threaded connector 4, a support frame 5, a bottom fixing bolt 6, a drive shaft 7, an upper connecting bolt 8, a rotating handle 9, a protective sleeve 10, and a lifting drive rod 11. The threaded connector 4 has a circular hole, into which the lifting drive rod 11 can be inserted. The left and right sides of the threaded connector 4 each have a set of threaded holes. The lower part of the support frame 5 is fixed to the threaded connector 4 by the bottom fixing bolt 6. The upper part of the lifting drive rod 11 extends into the support frame 5. The upper part of the lifting drive rod 11 has a set of circular holes. The drive shaft 7 is inserted into the circular holes in the upper part of the lifting drive rod 11. The upper left and right sides of the support frame 5 are connected to a set of rotating handles 9 by a set of upper connecting bolts 8, respectively. The lower part of the connecting end of the rotating handle 9 is fitted onto the left and right parts of the drive shaft 7. The protective sleeve 10 is fitted onto the gripping ends of the two sets of rotating handles 9. The lower end face of the lifting drive rod 11 has a threaded hole.
[0019] The pressure relief device includes a side plate 1, a first tooling base plate 2 and a pressure block 3. The first tooling base plate 2 is connected to the lower end face of the side plate 1. A threaded hole is provided on the top end face of the side plate 1. The clamping mechanism is connected to the upper end face of the side plate 1 through a threaded connecting seat 4. A screw is provided on the upper end face of the pressure block 3. The pressure block 3 is connected to the lower end face of the lifting drive rod 11.
[0020] The disassembly structure includes a second tooling base plate 12, support columns 13, and screw columns 14. A set of support columns 13 are installed on the left and right sides of the lower end face of the second tooling base plate 12. A threaded hole is provided in the middle of the upper end face of the second tooling base plate 12. The upper part of the screw column 14 is provided with an external thread that matches the threaded hole of the lifting drive rod 11. The clamping mechanism facilitates disassembly, which is conducive to the operation of the pressure relief device and the disassembly structure, reducing the total number of tools required for equipment construction. The desiccant is pressed down by the pressure relief device in conjunction with the clamping mechanism to release the residual pressure in the gas-liquid separator after use, making the disassembly of the elastic retaining ring easier. Then, the desiccant is quickly disassembled through the disassembly structure and the clamping mechanism, which improves the practicality of the device.
[0021] like Figures 1 to 4 As shown, this utility model discloses a quick-release tooling for heat pump desiccant. During operation, the side plate 1 and the first tooling base plate 2 provide main support. The pressure block 3 is connected to the lower end face of the lifting drive rod 11 via a screw on its upper surface. The pressure block 3 is then placed on the desiccant. The operator lifts the protective sleeve 10 upwards, causing the pressure block 3 to press down on the desiccant, releasing the residual pressure in the gas-liquid separator after use. This reduces the friction between the elastic retaining ring and the gas-liquid separator, decreasing the difficulty of removing the retaining ring with the snap ring pliers. Then, a support column 13 of different heights is selected according to different vehicle models. The clamping mechanism is connected to the threaded hole on the second tooling base plate 12. The screw column 14 is tightened onto the desiccant cover. The support column 13 then contacts the surface of the gas-liquid separator. The upper part of the screw column 14 is then connected to the lower part of the lifting drive rod 11. Finally, the protective sleeve 10 is rotated to lift the desiccant upwards.
[0022] The protective sleeve 10 of the quick-release tooling for heat pump desiccant of this utility model is purchased from the market. Technical personnel in this industry only need to install and operate it according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.
[0023] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A quick-release tooling for heat pump desiccant; characterized in that, It includes a clamping mechanism, a pressure relief device, and a disassembly structure, with the clamping mechanism connected to the pressure relief device or the disassembly structure.
2. The quick-release tooling for heat pump desiccant as described in claim 1, characterized in that, The clamping mechanism includes a threaded connector (4), a support frame (5), a bottom fixing bolt (6), a drive shaft (7), an upper connecting bolt (8), a rotating handle (9), a protective sleeve (10), and a lifting drive rod (11). The threaded connector (4) has a circular hole, into which the lifting drive rod (11) can be inserted. The left and right sides of the threaded connector (4) each have a set of threaded holes. The lower part of the support frame (5) is fixed to the threaded connector (4) by the bottom fixing bolt (6). The upper part of (11) extends into the support frame (5). The upper part of the lifting drive rod (11) is provided with a set of circular holes. The drive shaft (7) is inserted into the circular holes on the upper part of the lifting drive rod (11). The upper left and right sides of the support frame (5) are connected to a set of rotating handles (9) by a set of upper connecting bolts (8). The lower part of the connecting end of the rotating handle (9) is fitted on the left and right sides of the drive shaft (7). The sheath (10) is fitted on the gripping ends of the two sets of rotating handles (9). The lower end face of the lifting drive rod (11) is provided with threaded holes.
3. The quick-release tooling for heat pump desiccant as described in claim 2, characterized in that, The pressure relief device includes a side plate (1), a first tooling base plate (2) and a pressure block (3). The first tooling base plate (2) is connected to the lower end face of the side plate (1). A threaded hole is provided on the top end face of the side plate (1). The clamping mechanism is connected to the upper end face of the side plate (1) through a threaded connecting seat (4). A screw is provided on the upper end face of the pressure block (3). The pressure block (3) is connected to the lower end face of the lifting drive rod (11).
4. The quick-release tooling for heat pump desiccant as described in claim 3, characterized in that, The disassembly structure includes a second tooling base plate (12), a support column (13) and a screw column (14). A set of support columns (13) are installed on the left and right sides of the lower end face of the second tooling base plate (12). A threaded hole is provided in the middle of the upper end face of the second tooling base plate (12). The upper part of the screw column (14) is provided with an external thread that matches the threaded hole of the lifting drive rod (11).