Spring assembly of refrigeration linear compressor

Abstract

The utility model discloses a refrigeration linear compressor spring assembly, which relates to the technical field of linear compressors and comprises a piston body, a protection mechanism is sleeved on the surface of the piston body, a first mounting plate is sleeved on the surface of the piston body, and a second mounting plate is fixedly connected on the surface of the protection mechanism. One side of the first mounting plate is fixedly connected with a limiting mechanism, two symmetrically-arranged cavities are formed in the first mounting plate, through the arrangement of the protection mechanism, the effect of protecting the piston body is achieved, the piston body is not prone to damage, the service life of the piston body is prolonged, and through the arrangement of the limiting mechanism, the piston body is prevented from being damaged. The piston body and the protection mechanism are limited, the stability of the piston body in the working process is improved, the spring assembly is not prone to bending deformation, meanwhile, the piston body is fixed more firmly, and noise generated by the compressor in the working process is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of linear compressors, in particular to a refrigeration linear compressor spring assembly. Background Art

[0002] The compressor is a driven fluid machine that boosts low-pressure gas to high-pressure gas. It is the heart of the refrigeration system. It draws in low-temperature, low-pressure refrigerant gas from the intake pipe, compresses it through the piston driven by the motor, and then discharges high-temperature, high-pressure refrigerant gas to the exhaust pipe, providing power for the refrigeration cycle.

[0003] For example, a spring structure of a linear compressor disclosed in announcement number CN204610650U has the following beneficial effects: the first spring and the second spring are evenly distributed along the circumference of the central axis of the support body, reducing the radial shaking of the linear compressor and ensuring the stable operation of the linear compressor; the support body includes a first portion for arranging the first spring and a second portion for arranging the second spring, and the first portion and the second portion are staggered along the circumference of the central axis of the support body, further ensuring the stable operation of the linear compressor; the first portion and the second portion are arranged relative to each other along the central axis of the support body to reduce the length of the spring structure of the linear compressor along the central axis of the support body, so that the first spring and the second spring overlap in the direction of the central axis of the support body, thereby reducing the axial size of the linear compressor.

[0004] Regarding the above solution: The reference document ensures the stability of the linear compressor during operation by setting a first spring and a second spring. However, since a limiting mechanism is set in the spring assembly, the position of the piston may be offset during operation, causing the spring to bend, and thus making the fixation of the piston unstable. The bent spring cannot absorb the impact force brought by the compressor during operation, resulting in increased operating noise of the compressor, which not only affects the quietness of the working environment, but may also cause environmental pollution and noise pollution.

[0005] In view of the above problems, the utility model provides a refrigeration linear compressor spring assembly. Utility Model Content

[0006] The purpose of the utility model is to provide a refrigeration linear compressor spring assembly, which plays a role in protecting the piston body through the setting of a protective mechanism, making the piston body less likely to be damaged and extending the service life of the piston body. Through the setting of a limiting mechanism, it plays a role in limiting the piston body and the protective mechanism, thereby improving the stability of the piston body during operation, making the spring assembly less likely to bend and deform, and at the same time making the piston body more firmly fixed, reducing the noise generated by the compressor during operation, thereby solving the problems in the background technology.

[0007] The purpose of the utility model is to provide a refrigeration linear compressor spring assembly, including, thereby solving the problems in the background technology.

[0008] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a refrigeration linear compressor spring assembly, comprising a piston body, a protective mechanism being provided on the surface of the piston body, a first mounting plate being provided on the surface of the piston body, a second mounting plate being fixedly connected to the surface of the protective mechanism, a limiting mechanism being fixedly connected to one side of the first mounting plate, two symmetrically arranged cavities being provided inside the first mounting plate, and a locking mechanism being provided in the inner cavity of the cavity.

[0009] The piston body includes a plug cylinder arranged on the outside of the protective mechanism, one side of the plug cylinder is slidably connected to a long rod, one end of the long rod is fixedly connected to the piston head, and a first spring is sleeved on the surface of the long rod, and the two ends of the first spring are respectively fixedly connected to the plug cylinder and the piston head.

[0010] The protective mechanism includes a first sleeve sleeved on the surface of the long rod, the inner cavity of the first sleeve is slidably connected to a ring block, one side of the ring block is fixedly connected to a second spring, one end of the second spring is fixedly connected to the first sleeve, one side of the ring block is fixedly connected to the second sleeve, and one side of the second sleeve passes through the outside of the first sleeve.

[0011] The limiting mechanism includes a guide rod fixedly connected to the four corners of the first mounting plate, one end of the guide rod passes through one side of the second mounting plate, a third spring is sleeved on the surface of the guide rod, two ends of the third spring are respectively fixedly connected to the first mounting plate and the second mounting plate, one side of the first mounting plate is fixedly connected to four limit blocks, one side of the second mounting plate is fixedly connected to four fixed plates, the inner cavity of the limit block is slidably connected to a moving block, and one side of the moving block is fixedly connected to the fixed plate.

[0012] The locking mechanism includes a square plate slidably connected to the inner cavity of the cavity, a short rod is fixedly connected to one side of the square plate, a fourth spring is sleeved on the surface of the short rod, the two ends of the fourth spring are respectively fixedly connected to the first mounting plate and the square plate, a card block is fixedly connected to the bottom of the square plate, one side of the card block passes through the inner cavity of the first mounting plate, and two symmetrical card slots are provided on the surface of the plug cylinder.

[0013] Furthermore, sliding grooves are provided on both sides of the inner cavity of the cavity, and a slider is slidably connected to the inner cavity of the sliding groove, and one side of the slider is fixedly connected to the square plate.

[0014] Furthermore, one end of the short rod passes through the outside of the first mounting plate and is fixedly connected to a handle, and the surface of the handle is provided with anti-slip grooves.

[0015] Furthermore, a round block is fixedly connected to one side of the guide rod, and the diameter height of the round block is greater than the diameter height of the guide rod.

[0016] Furthermore, bolts are provided on the top and bottom of the second sleeve, threaded holes are provided on the top and bottom of the piston head, and the second sleeve and the piston head are detachably connected by the bolts.

[0017] Furthermore, a rubber pad is fixedly connected to one side of the first sleeve, and one side of the rubber pad is in contact with the plug cylinder.

[0018] Furthermore, a telescopic structure is formed between the square plate and the fourth spring, and the maximum movement distance of the square plate is equal to the deformation amount of the fourth spring.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] The utility model provides a refrigeration linear compressor spring assembly, which, through the provision of a protective mechanism, plays a role in protecting the piston body, making the piston body less susceptible to damage and extending the service life of the piston body. The provision of a limiting mechanism plays a role in limiting the piston body and the protective mechanism, thereby improving the stability of the piston body during operation, making the spring assembly less susceptible to bending and deformation, and at the same time making the piston body more firmly fixed, thereby reducing the noise generated by the compressor during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the three-dimensional structure of the piston body of the utility model;

[0023] Figure 3 This is a three-dimensional cutaway view of the local structure of the utility model Figure 1 ;

[0024] Figure 4 This is a three-dimensional cutaway view of the local structure of the utility model Figure 2 ;

[0025] Figure 5 It is a schematic three-dimensional diagram of the local structure of the limiting mechanism of the utility model.

[0026] In the figure: 1. Piston body; 101. Cylinder; 102. Long rod; 103. Piston head; 104. First spring; 2. Protective mechanism; 21. First sleeve; 22. Ring block; 23. Second spring; 24. Second sleeve; 3. First mounting plate; 4. Second mounting plate; 5. Limiting mechanism; 51. Guide rod; 52. Third spring; 53. Limiting block; 54. Fixed plate; 55. Moving block; 6. Locking mechanism; 61. Square plate; 62. Short rod; 63. Fourth spring; 64. Block; 65. Slot; 7. Slide; 8. Slider; 9. Handle; 10. Round block; 11. Bolt; 12. Threaded hole; 13. Rubber pad; 14. Cavity. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] To solve technical problems, such as Figure 1-5 As shown, the following preferred technical solutions are provided:

[0029] A refrigeration linear compressor spring assembly includes a piston body 1, a protective mechanism 2 is provided on the surface of the piston body 1, a first mounting plate 3 is provided on the surface of the piston body 1, a second mounting plate 4 is fixedly connected to the surface of the protective mechanism 2, a limiting mechanism 5 is fixedly connected to one side of the first mounting plate 3, two symmetrically arranged cavities 14 are provided inside the first mounting plate 3, and a locking mechanism 6 is provided in the inner cavity of the cavity 14.

[0030] The piston body 1 includes a piston cylinder 101 arranged on the outside of the protective mechanism 2, and a long rod 102 is slidably connected to one side of the piston cylinder 101, and one end of the long rod 102 is fixedly connected to the piston head 103. The surface of the long rod 102 is provided with a first spring 104, and the two ends of the first spring 104 are fixedly connected to the piston cylinder 101 and the piston head 103 respectively.

[0031] The protective mechanism 2 includes a first sleeve 21 that is sleeved on the surface of the long rod 102. The inner cavity of the first sleeve 21 is slidably connected to a ring block 22. One side of the ring block 22 is fixedly connected to a second spring 23. One end of the second spring 23 is fixedly connected to the first sleeve 21. One side of the ring block 22 is fixedly connected to a second sleeve 24. One side of the second sleeve 24 passes through the outside of the first sleeve 21.

[0032] The limiting mechanism 5 includes a guide rod 51 fixedly connected to the four corners of the first mounting plate 3, one end of the guide rod 51 passes through one side of the second mounting plate 4, and a third spring 52 is sleeved on the surface of the guide rod 51. The two ends of the third spring 52 are respectively fixedly connected to the first mounting plate 3 and the second mounting plate 4. Four limiting blocks 53 are fixedly connected to one side of the first mounting plate 3, and four fixed plates 54 are fixedly connected to one side of the second mounting plate 4. The inner cavity of the limiting block 53 is slidably connected to a moving block 55, and one side of the moving block 55 is fixedly connected to the fixed plate 54.

[0033] The locking mechanism 6 includes a square plate 61 slidably connected to the inner cavity of the cavity 14, a short rod 62 is fixedly connected to one side of the square plate 61, a fourth spring 63 is sleeved on the surface of the short rod 62, and the two ends of the fourth spring 63 are respectively fixedly connected to the first mounting plate 3 and the square plate 61, a clamping block 64 is fixedly connected to the bottom of the square plate 61, one side of the clamping block 64 passes through the inner cavity of the first mounting plate 3, and two symmetrical clamping grooves 65 are provided on the surface of the plug cylinder 101.

[0034] Further, such as Figure 4 As shown, the following preferred technical solutions are provided:

[0035] There are sliding grooves 7 on both sides of the inner cavity of the cavity 14, and the inner cavity of the sliding groove 7 is slidably connected with a slider 8. One side of the slider 8 is fixedly connected to the square plate 61. Through the cooperation of the sliding groove 7 and the slider 8, the square plate 61 is limited, thereby improving the stability of the square plate 61 during movement.

[0036] Further, such as Figure 4 As shown, the following preferred technical solutions are provided:

[0037] One end of the short rod 62 passes through the outside of the first mounting plate 3 and is fixedly connected to the handle 9. The surface of the handle 9 is provided with anti-slip grooves. Through the coordinated use of the handle 9 and the anti-slip grooves, the contact area between the user's palm and the handle 9 is increased, thereby facilitating the user to move the block 64.

[0038] Further, such as Figure 1 and Figure 3 As shown, the following preferred technical solutions are provided:

[0039] A round block 10 is fixedly connected to one side of the guide rod 51. The diameter and height of the round block 10 are greater than the diameter and height of the guide rod 51. Through the setting of the round block 10, the second mounting plate 4 is limited to prevent the second mounting plate 4 from separating from the surface of the guide rod 51.

[0040] Further, such as Figure 1-3 As shown, the following preferred technical solutions are provided:

[0041] Bolts 11 are provided at the top and bottom of the second sleeve 24, and threaded holes 12 are provided at the top and bottom of the piston head 103. The second sleeve 24 and the piston head 103 are detachably connected by the bolts 11. The coordinated use of the bolts 11 and the threaded holes 12 connects the second sleeve 24 and the piston head 103, making it convenient for the user to disassemble the second sleeve 24.

[0042] Further, such as Figure 3 As shown, the following preferred technical solutions are provided:

[0043] A rubber pad 13 is fixedly connected to one side of the first sleeve 21, and one side of the rubber pad 13 is in contact with the plug cylinder 101. Through the setting of the rubber pad 13, the sealing between the first sleeve 21 and the plug cylinder 101 is increased, making it difficult for dust to enter the inner cavity of the protective mechanism 2.

[0044] Further, such as Figure 4 As shown, the following preferred technical solutions are provided:

[0045] A telescopic structure is formed between the square plate 61 and the fourth spring 63, and the maximum moving distance of the square plate 61 is equal to the deformation of the fourth spring 63. Through the setting of the fourth spring 63, the moving speed of the square plate 61 is accelerated, so that the card block 64 can move quickly into the inner cavity of the card slot 65.

[0046] Working principle: The user puts the first mounting plate 3 on the surface of the plug cylinder 101. As the first mounting plate 3 continues to move, when the inner wall of the first mounting plate 3 contacts the plug cylinder 101, it then drives the block 64 to contact the plug cylinder 101. Through the inclined surface on the surface of the block 64, when the first mounting plate 3 moves, it will drive the block 64 to move into the inner cavity of the cavity 14, and the block 64 drives the square plate 61 to move. The square plate 61 drives the slider 8 to slide in the inner cavity of the slide groove 7. At the same time, the square plate 61 drives the short rod 62 to move, and the short rod 62 drives the fourth spring 63 to compress when moving. As the first mounting plate 3 continues to move, when it reaches the specified position, the rebound force of the fourth spring 63 will drive the block 64 to move into the inner cavity of the slot 65, thereby fixing the position of the first mounting plate 3.

[0047] After the first mounting plate 3 is fixed, it will drive the protective mechanism 2 to be sleeved on the surface of the long rod 102, the piston head 103 and the first spring 104. The first sleeve 21 drives the rubber pad 13 to contact one side of the piston cylinder 101, thereby improving the sealing inside the protective mechanism 2. The user can fix the second sleeve 24 and the piston head 103 by screwing the bolt 11 on the surface of the second sleeve 24 so that the bolt 11 enters the inner cavity of the threaded hole 12, so that the piston head 103 can drive the second sleeve 24 to move when it moves.

[0048] When the piston body 1 is working, the piston cylinder 101 drives the long rod 102 to move, and the long rod 102 drives the piston head 103 to move, and the piston head 103 drives the first spring 104 to be compressed. When the piston head 103 moves, it drives the second sleeve 24 to shrink into the inner cavity of the first sleeve 21, and the second sleeve 24 drives the annular block 22 to move, and the annular block 22 drives the second spring 23 to be compressed. When the second sleeve 24 moves, it drives the second mounting plate 4 to move on the surface of the guide rod 51, and the second mounting plate 4 drives the third spring 52 to be compressed when it moves. At the same time, the second mounting plate 4 drives the fixed plate 54 to move, and the fixed plate 54 drives the moving block 55 to slide in the inner cavity of the limit block 53. Through the coordinated use of the protective mechanism 2 and the limiting mechanism 5, the piston body 1 is limited, so that the piston body 1 can be firmly fixed in the correct position, ensuring effective compression of gas, thereby improving the working efficiency and stability of the compressor.

[0049] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0050] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A refrigeration linear compressor spring assembly, comprising a piston body (1), characterized in that: The surface of the piston body (1) is provided with a protective mechanism (2), the surface of the piston body (1) is provided with a first mounting plate (3), the surface of the protective mechanism (2) is fixedly connected to a second mounting plate (4), one side of the first mounting plate (3) is fixedly connected to a limiting mechanism (5), the interior of the first mounting plate (3) is provided with two symmetrically arranged cavities (14), and the inner cavity of the cavity (14) is provided with a locking mechanism (6); The piston body (1) includes a plug cylinder (101) arranged outside the protective mechanism (2); one side of the plug cylinder (101) is slidably connected to a long rod (102); one end of the long rod (102) is fixedly connected to a piston head (103); a first spring (104) is sleeved on the surface of the long rod (102); and the two ends of the first spring (104) are fixedly connected to the plug cylinder (101) and the piston head (103) respectively; The protection mechanism (2) includes a first sleeve (21) sleeved on the surface of the long rod (102), an annular block (22) is slidably connected to the inner cavity of the first sleeve (21), a second spring (23) is fixedly connected to one side of the annular block (22), one end of the second spring (23) is fixedly connected to the first sleeve (21), a second sleeve (24) is fixedly connected to one side of the annular block (22), and one side of the second sleeve (24) passes through the outside of the first sleeve (21); The limiting mechanism (5) includes a guide rod (51) fixedly connected to the four corners of the first mounting plate (3), one end of the guide rod (51) passes through one side of the second mounting plate (4), a third spring (52) is sleeved on the surface of the guide rod (51), and the two ends of the third spring (52) are fixedly connected to the first mounting plate (3) and the second mounting plate (4), respectively. One side of the first mounting plate (3) is fixedly connected to four limiting blocks (53), and one side of the second mounting plate (4) is fixedly connected to four fixed plates (54). The inner cavity of the limiting block (53) is slidably connected to a moving block (55), and one side of the moving block (55) is fixedly connected to the fixed plate (54); The locking mechanism (6) includes a square plate (61) slidably connected to the inner cavity of the cavity (14); a short rod (62) is fixedly connected to one side of the square plate (61); a fourth spring (63) is sleeved on the surface of the short rod (62); two ends of the fourth spring (63) are fixedly connected to the first mounting plate (3) and the square plate (61), respectively; a clamping block (64) is fixedly connected to the bottom of the square plate (61); one side of the clamping block (64) passes through the inner cavity of the first mounting plate (3); and two symmetrically arranged clamping grooves (65) are provided on the surface of the plug cylinder (101).

2. The refrigeration linear compressor spring assembly according to claim 1, characterized in that: Slide grooves (7) are provided on both sides of the inner cavity of the cavity (14), and a slider (8) is slidably connected to the inner cavity of the slide groove (7), and one side of the slider (8) is fixedly connected to the square plate (61).

3. The refrigeration linear compressor spring assembly according to claim 1, characterized in that: One end of the short rod (62) passes through the outside of the first mounting plate (3) and is fixedly connected to a handle (9), and the surface of the handle (9) is provided with anti-slip grooves.

4. The refrigeration linear compressor spring assembly according to claim 1, characterized in that: A round block (10) is fixedly connected to one side of the guide rod (51), and the diameter height of the round block (10) is greater than the diameter height of the guide rod (51).

5. The refrigeration linear compressor spring assembly according to claim 1, characterized in that: Bolts (11) are provided at the top and bottom of the second sleeve (24), threaded holes (12) are provided at the top and bottom of the piston head (103), and the second sleeve (24) and the piston head (103) are detachably connected via the bolts (11).

6. The refrigeration linear compressor spring assembly according to claim 1, characterized in that: One side of the first sleeve (21) is fixedly connected to a rubber pad (13), and one side of the rubber pad (13) is in contact with the plug cylinder (101).

7. The refrigeration linear compressor spring assembly according to claim 1, characterized in that: A telescopic structure is formed between the square plate (61) and the fourth spring (63), and the maximum moving distance of the square plate (61) is equal to the deformation amount of the fourth spring (63).

Images