Pressure controller for air conditioner pressure system

Abstract

The utility model relates to the technical field of air conditioner pressure systems, in particular to a pressure controller for an air conditioner pressure system, which is characterized in that a plurality of sliding chutes are formed in an outer shell; connecting rods are arranged on the lower surfaces of the connecting plates; the device has the beneficial effects that a bolt on the upper surface of the outer shell is screwed and taken down, then a nut in threaded connection with the bolt on the side face is screwed and taken down, the barrel can be separated from the outer shell, a clamping plate is pulled to move along a limiting groove, and a limiting rod fixedly connected with the lower surface of the clamping plate is separated from a limiting hole formed in the upper surface of a connecting plate; a worker can push the lower mounting plate and the clamping block to be taken out along the clamping groove, the elastic spring can be taken down from the device, the worker can replace a new elastic spring, the reliability of the device is improved, the situation that the elastic spring cannot be replaced after being used for a long time, and consequently the pressure controller fails is avoided, the structure is simple, and use is convenient. Later maintenance of workers is facilitated, the use cost is reduced, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the field of air-conditioning pressure systems, in particular to a pressure controller used in air-conditioning pressure systems. Background Art

[0002] The air conditioning pressure system mainly includes the compressor, which is the core component of the air conditioning system and is responsible for compressing the refrigerant into high-pressure gas; the condenser, which is a device that cools the high-pressure gas refrigerant into liquid; the expansion valve, which is a device that reduces the pressure of the high-pressure liquid refrigerant into a low-pressure liquid; the evaporator, which is a device that absorbs heat from the low-pressure liquid refrigerant and evaporates it into a low-pressure gas; and the pressure controller, which is used to control the system pressure and ensure the normal operation of the system.

[0003] In the prior art, a pressure controller generally refers to a device used to monitor and control the pressure in an air-conditioning refrigeration cycle. In an air-conditioning system, a pressure controller plays an important role in ensuring the normal operation of the refrigeration cycle and protecting the system.

[0004] However, the existing pressure controllers are usually not of integrated structure, and it is difficult for the staff to replace the components inside the pressure controller if they are damaged, which reduces the reliability of the pressure controller. Generally, a spring is provided inside the pressure controller to realize pressure control. The spring is easily damaged after long-term use, causing the pressure controller to fail. It is difficult for the staff to replace it, which is inconvenient for the staff to maintain it later and has low practicality. Utility Model Content

[0005] The purpose of the utility model is to provide a pressure controller for an air-conditioning pressure system to solve the problems raised in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical solution: a pressure controller for an air conditioning pressure system, the pressure controller for an air conditioning pressure system comprising: an outer shell, a plurality of slide grooves are provided in the outer shell, and a positioning plate is provided on the upper surface of the outer shell;

[0007] A connecting plate, a connecting rod is arranged on the lower surface of the connecting plate, and a card slot is arranged on the upper surface of the connecting plate.

[0008] Preferably, the slide groove is a "convex" groove-shaped structure, and a slider is provided in the slide groove. The slider can move along the slide groove, and the slider is fixedly connected to the side of the connecting plate.

[0009] Preferably, the positioning plate is a "convex" plate-shaped structure, the positioning plate is fixedly connected to the upper surface of the outer shell, the protruding part on the positioning plate can be inserted into the groove opened on the upper mounting plate, and the lower surface of the upper mounting plate is fixedly connected with an elastic spring, and the other end of the elastic spring is fixedly connected to the upper mounting plate.

[0010] Preferably, the connecting rod is fixedly connected to the lower surface of the connecting plate, and the connecting rod passes through a hole opened on the upper surface of the cylinder and is fixedly connected to the moving block in the cylinder. A connecting pipe and a pressure relief pipe are respectively provided on the cylinder.

[0011] Preferably, the card slot is a "convex" slot-shaped structure, and the card block fixedly connected to the lower surface of the lower mounting plate can be inserted into the card slot, and a limiting groove is provided on the side of the lower mounting plate.

[0012] Preferably, the limit groove is a "convex" groove structure, one side of the card plate is stuck in the limit groove, the card plate can move up and down along the limit groove, the lower surface of the card plate is fixedly connected to the limit rod, the upper surface of the card plate is fixedly connected to a thrust spring, and the other end of the thrust spring is fixedly connected to the protrusion on the lower mounting plate.

[0013] Preferably, the limiting rod is in a circular groove structure, and the limiting rod can be inserted into a limiting hole provided on the upper surface of the connecting plate.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model discloses a pressure controller for an air-conditioning pressure system. By twisting the bolt on the upper surface of the outer shell and removing it, and then twisting the nut threadedly connected on the bolt on the side and removing it, the cylinder body can be separated from the outer shell. The clamping plate is pulled to move along the limit groove so that the limit rod fixedly connected to the lower surface of the clamping plate is disengaged from the limit hole opened on the upper surface of the connecting plate. The staff can push the lower mounting plate and the clamping block to take them out along the clamping groove, and then remove the elastic spring from the device. The staff can replace the new elastic spring, thereby improving the reliability of the device and avoiding the elastic spring being damaged after long-term use and unable to replace the elastic spring, causing the pressure controller to fail. The utility model has a simple structure, is convenient for the staff to maintain in the later stage, reduces the use cost, and has high practicality. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 It is a schematic diagram of the local structure of the utility model;

[0018] Figure 3 for Figure 2 The enlarged structural diagram at A in the middle;

[0019] Figure 4 This is a schematic diagram of the internal structure of the utility model;

[0020] Figure 5 It is a partial structural schematic diagram of the utility model.

[0021] In the figure: 1, outer shell; 2, connecting plate; 3, slide groove; 4, positioning plate; 5, connecting rod; 6, slider;

[0022] 7. Card slot; 8. Limit hole; 9. Limit rod; 10. Card plate; 11. Thrust spring; 12. Limit slot;

[0023] 13. Lower mounting plate; 14. Clamping block; 15. Elastic spring; 16. Upper mounting plate; 17. Moving block; 18. Cylinder; 19. Connecting pipe; 20. Pressure relief pipe. DETAILED DESCRIPTION

[0024] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of 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.

[0025] Embodiment 1

[0026] See also Figure 1-Figure 5 The utility model provides a technical solution: a pressure controller for an air conditioning pressure system, the pressure controller for the air conditioning pressure system comprising: an outer shell 1, a plurality of slide grooves 3 are provided in the outer shell 1, a positioning plate 4 is provided on the upper surface of the inner shell 1; a connecting plate 2, a connecting rod 5 is provided on the lower surface of the connecting plate 2, and a card slot 7 is provided on the upper surface of the connecting plate 2;

[0027] During specific use, the staff inserts the sliding block 6 fixedly connected on the connecting plate 2 along the slide groove 3 opened in the outer shell 1, and after the protrusion on the positioning plate 4 fixedly connected to the upper surface of the outer shell 1 is inserted into the notch opened on the upper mounting plate 16, the bolt is passed through the hole opened on the upper surface of the outer shell 1 and connected with the threaded hole on the upper mounting plate 16, and the upper mounting plate 16 is fixed to the outer shell 1, and the bolt is used to pass through the hole on the protrusion fixedly connected to the side of the outer shell 1 and the hole opened at the corresponding position on the upper surface of the cylinder 18, and the nut is used to thread the bolt to fix the cylinder 18 on the outer shell 1, and the connecting pipe 19 is connected to the corresponding device, and the pressure relief pipe 20 is connected to the corresponding device. When the gas can enter the cylinder 18 from the connecting pipe 19, the cylinder 18 is gradually pressurized. When the air pressure in the cylinder 18 is too large and the pressure is greater than the pressure given to the moving block 17 by the elastic spring 15, the moving block 17 moves upward to expose the pressure relief pipe 20, and the gas is discharged from the pressure relief pipe 20, thereby achieving pressure control.

[0028] Embodiment 2

[0029] On the basis of embodiment 1, in order to facilitate the later maintenance of the staff, a slide groove 3 is provided, the slide groove 3 is a "convex" groove structure, a slider 6 is provided in the slide groove 3, the slider 6 can move along the slide groove 3, the slider 6 is fixedly connected to the side of the connecting plate 2, the connecting plate 2 and the slider 6 can move along the slide groove 3, the slot 7 is a "convex" slot structure, the clamping block 14 fixedly connected to the lower surface of the lower mounting plate 13 can be clamped in the clamping groove 7, and a limiting groove 12 is provided on the side of the lower mounting plate 13. Pull the clamping plate 10 along the limiting groove 12 to move to a suitable position, and the clamping block 14 can be clamped in the clamping groove 7. Release the clamping plate 10, and the thrust spring 11 pushes the clamping plate 10 to move along the limiting groove 12 until the limiting rod 9 is clamped in the limiting hole 8, so that the lower mounting plate 13 is fixed on the connecting plate 2. The limiting rod 9 is a circular groove structure, and the limiting rod 9 can be clamped in the limiting hole 8 provided on the upper surface of the connecting plate 2. When the limiting rod 9 is clamped in the limiting hole 8 provided on the upper surface of the connecting plate 2 The limiting hole 8 can prevent the lower mounting plate 13 from detaching from the connecting plate 2, and the limiting groove 12 is a "convex" groove structure. One side of the card plate 10 is stuck in the limiting groove 12, and the card plate 10 can move up and down along the limiting groove 12. The lower surface of the card plate 10 is fixedly connected to the limiting rod 9, and the upper surface of the card plate 10 is fixedly connected to the thrust spring 11, and the other end of the thrust spring 11 is fixedly connected to the convex block on the lower mounting plate 13. The above structures cooperate with each other. The staff can screw the bolts on the upper surface of the outer shell 1 and remove the bolts, and then screw the nuts threaded on the bolts on the side to separate the cylinder 18 from the outer shell 1, pull the card plate 10 to move along the limiting groove 12 to make the limiting rod 9 disengage from the limiting hole 8, and the staff can take out the lower mounting plate 13 along the card slot 7, and then take out the elastic spring 15, and the staff can replace the new elastic spring 15, which is convenient for the staff to maintain in the later stage, improve the reliability of the device, and has high practicality.

[0030] Embodiment 3

[0031] On the basis of the second embodiment, a positioning plate 4 is provided for the convenience of use by the staff. The positioning plate 4 is a "convex" plate-shaped structure. The positioning plate 4 is fixedly connected to the upper surface of the outer shell 1. The convex part on the positioning plate 4 can be inserted into the notch provided on the upper mounting plate 16. The lower surface of the upper mounting plate 16 is fixedly connected with an elastic spring 15. The other end of the elastic spring 15 is fixedly connected to the upper mounting plate 16. The positioning plate 4 can assist the staff to install the upper mounting plate 16 to the appropriate position in the cylinder 18 for the convenience of use by the staff. The connecting rod 5 is connected to the lower surface of the connecting plate 2. The surface is fixedly connected, the connecting rod 5 passes through the hole opened on the upper surface of the cylinder 18 and is fixedly connected to the moving block 17 in the cylinder 18. A connecting pipe 19 and a pressure relief pipe 20 are respectively provided on the cylinder 18. The elastic spring 15 can push the connecting plate 2 and the connecting rod 5 to move downward. The connecting rod 5 pushes the moving block 17 to move downward to block the pressure relief pipe 20. When the pressure of the cylinder 18 is too large and the pressure is greater than the pressure given to the moving block 17 by the elastic spring 15, the moving block 17 moves upward to expose the pressure relief pipe 20, and the gas is discharged from the pressure relief pipe 20 to achieve pressure control.

[0032] In actual use, the bolts on the upper surface of the outer shell 1 are twisted and removed, and then the nuts threaded on the side bolts are twisted and removed, so that the cylinder 18 can be separated from the outer shell 1, and the card plate 10 is pulled to move along the limit groove 12 to make the limit rod 9 fixedly connected to the lower surface of the card plate 10 disengage from the limit hole 8 opened on the upper surface of the connecting plate 2. The staff can push the lower mounting plate 13 and the card block 14 to be taken out along the card groove 7, and then the elastic spring 15 is removed from the device. The staff can replace the new elastic spring 15, thereby improving the reliability of the device and avoiding the elastic spring 15 being damaged after long-term use and unable to replace the elastic spring 15, causing the pressure controller to fail. The structure is simple, convenient for the staff to maintain in the later stage, and reduces the cost of use. It is highly practical.

[0033] 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. A pressure controller for an air conditioning pressure system, characterized in that: The pressure controller for an air conditioning pressure system comprises: an outer shell (1), a plurality of slide grooves (3) are provided in the outer shell (1), and a positioning plate (4) is provided on the inner upper surface of the outer shell (1); A connecting plate (2) is provided with a connecting rod (5) on the lower surface of the connecting plate (2), and a clamping groove (7) is provided on the upper surface of the connecting plate (2).

2. A pressure controller for an air conditioning pressure system according to claim 1, characterized in that: The slide groove (3) is a convex groove structure. A slider (6) is arranged in the slide groove (3). The slider (6) can move along the slide groove (3). The slider (6) is fixedly connected to the side of the connecting plate (2).

3. A pressure controller for an air conditioning pressure system according to claim 1, characterized in that: The positioning plate (4) is a "convex" plate-shaped structure. The positioning plate (4) is fixedly connected to the inner upper surface of the outer shell (1). The protruding portion on the positioning plate (4) can be inserted into a notch provided on the upper mounting plate (16). The lower surface of the upper mounting plate (16) is fixedly connected to an elastic spring (15), and the other end of the elastic spring (15) is fixedly connected to the upper mounting plate (16).

4. A pressure controller for an air conditioning pressure system according to claim 1, characterized in that: The connecting rod (5) is fixedly connected to the lower surface of the connecting plate (2); the connecting rod (5) passes through a hole provided on the upper surface of the cylinder (18) and is fixedly connected to a moving block (17) in the cylinder (18); and a connecting pipe (19) and a pressure relief pipe (20) are respectively provided on the cylinder (18).

5. A pressure controller for an air conditioning pressure system according to claim 1, characterized in that: The card slot (7) is a "convex" slot-shaped structure, and a card block (14) fixedly connected to the lower surface of the lower mounting plate (13) can be inserted into the card slot (7), and a limiting slot (12) is provided on the side of the lower mounting plate (13).

6. A pressure controller for an air conditioning pressure system according to claim 5, characterized in that: The limiting groove (12) is a convex groove-shaped structure. One side of the card plate (10) is clamped in the limiting groove (12). The card plate (10) can move up and down along the limiting groove (12). The lower surface of the card plate (10) is fixedly connected to the limiting rod (9). The upper surface of the card plate (10) is fixedly connected to the thrust spring (11). The other end of the thrust spring (11) is fixedly connected to a protrusion on the lower mounting plate (13).

7. A pressure controller for an air conditioning pressure system according to claim 6, characterized in that: The limiting rod (9) is in the form of a circular groove, and the limiting rod (9) can be inserted into a limiting hole (8) provided on the upper surface of the connecting plate (2).

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