Piston compressor and connecting rod structure thereof

Abstract

The invention provides a piston compressor and a connecting rod structure thereof, the connecting rod structure comprises a connecting rod, one end of the connecting rod is used for being connected with a crankshaft of the piston compressor, and the other end of the connecting rod is used for being connected with a piston of the piston compressor, so that the crankshaft can drive the piston to do reciprocating rectilinear motion through the connecting rod when rotating; a balance weight block is arranged on the connecting rod and can move under the action of inertia force when the connecting rod moves. According to the piston compressor, the slidable balance weight block is arranged in the connecting rod, so that the balance weight block generates relative motion opposite to the motion direction of the piston in the motion process of the piston, partial counteracting of inertia force is achieved in the structure, and then reciprocating inertia force generated by reciprocating motion of the piston in the piston compressor can be reduced.

Description

Technical Field

[0001] This invention belongs to the field of piston compressor technology, specifically relating to a piston compressor and its connecting rod structure. Background Technology

[0002] Traditional piston compressors generate significant unbalanced reciprocating inertial forces due to the reciprocating motion of components such as pistons and connecting rods. This imbalance causes compressor vibration and noise, reduces operational stability and reliability, shortens compressor lifespan, and also negatively impacts the surrounding environment. Current solutions include adding counterweights to the crankshaft; however, these counterweights can only balance rotational inertial forces to a certain extent, and their effectiveness in balancing reciprocating inertial forces is limited. Summary of the Invention

[0003] Therefore, the present invention provides a piston compressor and its connecting rod structure. The main technical problem to be solved is: how to reduce the reciprocating inertial force generated by the reciprocating motion of the piston in the piston compressor.

[0004] To solve the above problems, the present invention provides a connecting rod structure for a piston compressor, which includes a connecting rod, one end of which is used to connect to the crankshaft of the piston compressor, and the other end of which is used to connect to the piston of the piston compressor, so that when the crankshaft rotates, it can drive the piston to reciprocate linearly through the connecting rod. The connecting rod is equipped with a counterweight, which can move under the action of inertial force when the connecting rod moves.

[0005] In some embodiments, the counterweight is connected to the connecting rod via an elastic element.

[0006] In some embodiments, the connecting rod is provided with a groove, and the counterweight is used to move within the groove.

[0007] In some embodiments, the groove is a limiting guide groove; the groove is used to limit and guide the movement of the counterweight, so that the counterweight can move in a preset direction.

[0008] In some embodiments, when the counterweight is connected to the connecting rod via an elastic element, the elastic element includes a first elastic element and a second elastic element; The counterweight has a first end and a second end opposite to each other in the preset direction. The first elastic element is disposed on the first end side of the counterweight, and the second elastic element is disposed on the second end side of the counterweight.

[0009] In some implementations, the weight of the counterweight is adjustable.

[0010] In some embodiments, the counterweight has a base and a detachable block disposed on the base; the weight of the counterweight is adjustable by attaching to or removing the detachable block from the base.

[0011] In some embodiments, when the connecting rod has a groove, the counterweight is used to move within the groove, and the groove is a limiting and guiding groove, used to limit and guide the movement of the counterweight, enabling the counterweight to move in a preset direction; and the counterweight is connected to the connecting rod via an elastic element, the elastic element including a first elastic element and a second elastic element, the counterweight having a first end and a second end opposite to each other in the preset direction, the first elastic element being disposed on the first end side of the counterweight, and the second elastic element being disposed on the second end side of the counterweight. The base includes a first connecting block and a second connecting block, one end of the first connecting block is the first end, one end of the second connecting block is the second end, the detachable block is disposed between the first connecting block and the second connecting block, and one end of the detachable block is detachably connected to the other end of the first connecting block, and the other end of the detachable block is detachably connected to the other end of the second connecting block; Wherein, when the detachable block is detached from the base, the other end of the first connecting block can be detachably connected to the other end of the second connecting block.

[0012] In some embodiments, the other end of the first connecting block is provided with a screw hole, and the other end of the second connecting block is provided with a stud, the stud being able to engage with the screw hole threadedly; The detachable block is provided with a stud at one end and a screw hole at the other end.

[0013] In some embodiments, the counterweight is provided with a movable stop, and the groove wall is provided with a limiting groove, the limiting groove and the groove extending in the same direction; wherein, the movable stop is used to insert into the limiting groove when moving to the first position, so as to stop the counterweight in the groove; the movable stop is used to remove the stop on the counterweight when moving to the second position; The first end of the counterweight is detachably connected to the first elastic element, and the second end of the counterweight is detachably connected to the second elastic element, so that when the movable stop moves to the second position, the counterweight can be removed from the groove.

[0014] The present invention also provides a piston compressor comprising the connecting rod structure described in any one of the above descriptions.

[0015] The piston compressor and its connecting rod structure provided by the present invention have the following beneficial effects: 1. The present invention provides a sliding counterweight inside the connecting rod, which causes the counterweight to move relative to the piston during piston movement, thereby partially canceling the inertial force inside the structure and reducing the reciprocating inertial force generated by the reciprocating motion of the piston in the piston compressor.

[0016] 2. The solution of this invention can dynamically adapt to changes in the compressor's operating state, significantly reducing overall vibration and noise, improving operational stability and service life, and enhancing compressor performance and reliability. Furthermore, this invention has a compact and reasonable overall structure, the counterweight is easy to manufacture and process, and the assembly method is simple, enabling mass production. The connecting rod is also easy to process.

[0017] 3. The weight of the counterweight is adjustable, which makes it suitable for adjusting the reciprocating inertial force under different working conditions. Attached Figure Description

[0018] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. The drawings described below are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0019] Figure 1 This is a perspective view of the connecting rod structure of the piston compressor of the present invention; Figure 2 This is a partial structural schematic diagram of the connecting rod structure of the piston compressor of the present invention from another perspective; Figure 3 yes Figure 2 A partial structural schematic diagram in cross-section along the central AA direction; Figure 4 yes Figure 2 A partial structural schematic diagram of the cross-section along the BB direction.

[0020] The attached figures are labeled as follows: 1. Connecting rod; 2. Groove; 3. Counterweight; 4. Elastic element; 5. First support sleeve; 6. Movable stop; 7. Screw; 8. Ball bearing; 9. Limiting groove; 10. Second support sleeve; 11. Small end; 12. Large end; 31. Base; 32. Detachable block; 41. First elastic element; 42. Second elastic element; 301. First end; 302. Second end; 311. First connecting block; 312. Second connecting block; 3a. Screw hole; 3b. Stud. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0023] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0024] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0025] See also Figure 1-4As shown, according to an embodiment of the present invention, a connecting rod structure for a piston compressor is provided, comprising a connecting rod 1. One end of the connecting rod 1 is connected to the crankshaft of the piston compressor, and the other end of the connecting rod 1 is connected to the piston of the piston compressor, so that the crankshaft can drive the piston to reciprocate linearly through the connecting rod 1 when rotating. A counterweight 3 is provided on the connecting rod 1, and the counterweight 3 can move under the action of inertial force when the connecting rod 1 moves.

[0026] In the example above, the crankshaft rotation drives the connecting rod 1 to swing, causing the piston to reciprocate linearly within the cylinder of the piston compressor. During this process, the connecting rod 1 swings with the crankshaft rotation. Simultaneously, due to the reciprocating motion of the piston, the counterweight 3 on the connecting rod 1 generates an acceleration opposite to the direction of piston motion under the action of inertial force, thus generating a reverse inertial force. This partially offsets and balances the reciprocating inertial force generated by the piston, thereby reducing the reciprocating inertial force generated by the piston's reciprocating motion within the piston compressor.

[0027] In some embodiments, one end of connecting rod 1 is a large end 12, and the other end of connecting rod 1 is a small end 11. Connecting rod 1 is connected to the piston through the small end 11, and the small end 11 can be connected to the piston through a piston pin. Connecting rod 1 is connected to the crankshaft through the large end 12.

[0028] In some implementations, such as Figure 1 As shown, the counterweight 3 is connected to the connecting rod 1 via an elastic element 4. This elastic element 4 can be a spring or flexible plastic, etc.

[0029] In the above example, the elastic element 4 can pull the counterweight 3, forming a uniform and balanced pulling or elastic force on the inner side of the counterweight 3, which is beneficial to the adaptive adjustment of the counterweight 3. In addition, when the connecting rod 1 stops moving, the elastic element 4 can keep the counterweight 3 in the preset initial position, so that the adjustment of the counterweight 3 to the reciprocating inertial force is balanced.

[0030] In some implementations, such as Figure 1 As shown, the aforementioned connecting rod 1 may be provided with a groove 2, and the aforementioned counterweight 3 is used to move within the groove 2.

[0031] In the example above, by moving the counterweight 3 within the groove 2 on the connecting rod 1, the internal space of the connecting rod 1 can be fully utilized, making the overall structure more compact.

[0032] In some embodiments, the aforementioned groove 2 can be a limiting guide groove. The groove 2 is used to limit and guide the movement of the counterweight 3, so that the counterweight 3 can move in a preset direction.

[0033] The aforementioned preset direction can be the direction that minimizes the reciprocating inertial force. In the example above, by designing the groove 2 as a limiting guide groove to limit and guide the movement of the counterweight 3 along the preset direction, the ineffective movement of the counterweight 3 in other directions is reduced, which helps to minimize the reciprocating inertial force generated by the reciprocating motion of the piston.

[0034] In some implementations, such as Figure 1 As shown, the aforementioned groove 2 extends along the length direction of the connecting rod 1, thus making the aforementioned preset direction the length direction of the connecting rod 1.

[0035] In some implementations, such as Figure 1 As shown, when the aforementioned counterweight 3 is connected to the connecting rod 1 via the elastic element 4, the elastic element 4 may include a first elastic element 41 and a second elastic element 42. The aforementioned counterweight 3 has a first end 301 and a second end 302 opposite to each other in a preset direction. The first elastic element 41 is disposed on the first end 301 side of the counterweight, and the second elastic element 42 is disposed on the second end 302 side of the counterweight.

[0036] In the above example, by setting the first elastic element 41 and the second elastic element 42 at both ends in the direction of movement of the counterweight 3, the movement of the counterweight 3 can be buffered, preventing the counterweight 3 from hitting the connecting rod 1 and generating noise; in addition, it also makes the adjustment of the reciprocating inertial force of the counterweight 3 balanced.

[0037] In some implementations, the weight of the aforementioned counterweight 3 is adjustable, thus making it suitable for adjusting the reciprocating inertial force under different working conditions.

[0038] In order to make the weight of the aforementioned counterweight 3 adjustable, in some embodiments, such as Figure 2 As shown, the aforementioned counterweight 3 may have a base 31 and a detachable block 32 disposed on the base 31. The detachable block 32 allows the weight of the counterweight 3 to be adjustable by being installed on or removed from the base 31. Specifically, when the detachable block 32 is installed on the base 31, the weight of the counterweight 3 can be increased; when the detachable block 32 is removed from the base 31, the weight of the counterweight 3 can be decreased.

[0039] In some implementations, such as Figure 4As shown, when the connecting rod 1 is provided with a groove 2, the counterweight 3 is used to move within the groove 2, and the groove 2 is a limiting guide groove. The groove 2 is used to limit and guide the movement of the counterweight 3, so that the counterweight 3 can move in a preset direction; and the counterweight 3 is connected to the connecting rod 1 through an elastic member 4. The elastic member 4 includes a first elastic member 41 and a second elastic member 42. The counterweight 3 has a first end 301 and a second end 302 opposite to each other in the preset direction. When the first elastic member 41 is provided on the first end 301 side of the counterweight and the second elastic member 42 is provided on the second end 302 side of the counterweight, the aforementioned base 31 may include a first connecting block 311 and a second connecting block 312. One end of the first connecting block 311 is connected to the first elastic member 41 as the aforementioned first end 301, and one end of the second connecting block 312 is connected to the second elastic member 42 as the aforementioned second end 302. The aforementioned detachable block 32 is disposed between the first connecting block 311 and the second connecting block 312, and one end of the detachable block 32 is detachably connected to the other end of the first connecting block 311, and the other end of the detachable block 32 is detachably connected to the other end of the second connecting block 312. When the detachable block 32 is removed from the base 31, the other end of the first connecting block 311 and the other end of the second connecting block 312 can be detachably connected.

[0040] In the above example, by designing the counterweight 3 into three parts: a first connecting block 311, a second connecting block 312, and a detachable block 32, the counterweight 3 can be connected to the first elastic element 41 through the first connecting block 311 and to the second elastic element 42 through the second connecting block 312. The detachable block 32 is designed between the first connecting block 311 and the second connecting block 312. In this way, the function of connecting the counterweight 3 to the first elastic element 41 and the second elastic element 42 can be realized, and the weight of the counterweight 3 can be adjusted by installing and removing the detachable block 32.

[0041] In order to enable one end of the aforementioned detachable block 32 to be detachably connected to the other end of the first connecting block 311, and to enable the other end of the detachable block 32 to be detachably connected to the other end of the second connecting block 312, and to enable the other end of the first connecting block 311 to be detachably connected to the other end of the second connecting block 312 after the detachable block 32 is removed from the base 31, in some embodiments, such as Figure 4 As shown, the other end of the aforementioned first connecting block 311 may be provided with a screw hole 3a, and the other end of the second connecting block 312 may be provided with a stud 3b. The stud 3b can be threadedly engaged with the screw hole 3a. Thus, after the detachable block 32 is removed from the base 31, the other end of the first connecting block 311 and the other end of the second connecting block 312 can be detachably connected through the engagement of the stud 3b and the screw hole 3a.

[0042] The aforementioned detachable block 32 is provided with a stud 3b at one end and a screw hole 3a at the other end. This allows one end of the detachable block 32 to be threadedly connected to the screw hole 3a at the other end of the first connecting block 311 via the stud 3b, and the other end of the detachable block 32 to be threadedly connected to the stud 3b at the other end of the second connecting block 312 via the screw hole 3a. This allows the detachable block 32 to be installed between the first connecting block 311 and the second connecting block 312, or to be detached from between the first connecting block 311 and the second connecting block 312.

[0043] It should be noted that the aforementioned detachable blocks 32 can be two or more, and the structure of each detachable block 32 can be the same. The density of each detachable block 32 can be the same or different. In particular, different numbers of detachable blocks 32 with the same structure and different densities can be used according to different working conditions, which can be applied to the adjustment of reciprocating inertial force under different working conditions.

[0044] In some implementations, such as Figure 3 As shown, the aforementioned counterweight 3 may be equipped with a movable stop 6. The groove wall of the aforementioned groove 2 is provided with a limiting groove 9, and the limiting groove 9 and the groove 2 extend in the same direction. The movable stop 6 is used to insert into the limiting groove 9 when the counterweight 3 moves to the first position, thereby stopping the counterweight 3 within the groove 2. The movable stop 6 is used to release the stop on the counterweight 3 when the counterweight 3 moves to the second position. The movable stop 6 prevents the counterweight 3 from falling out of the groove 2. When the movable stop 6 moves to the first position and inserts into the limiting groove 9, the movable stop 6 and the limiting groove 9 are in sliding engagement.

[0045] The first end 301 of the counterweight is detachably connected to the first elastic member 41, and the second end 302 of the counterweight is detachably connected to the second elastic member 42, so that when the movable stop 6 moves to the second position, the counterweight 3 can be removed from the groove 2.

[0046] In the above example, by making the counterweight 3 removable from the groove 2, it is convenient to install and remove the detachable block 32.

[0047] In some implementations, such as Figure 3 As shown, the aforementioned movable stop 6 can be rotated to the first and second positions. Specifically, the movable stop 6 can be rotatably connected to the counterweight 3 via a pivot. The pivot can be a screw 7 or the like. When the screw 7 is loosened, the movable stop 6 can rotate relative to the counterweight 3 via the screw 7; when the screw 7 is tightened, the movable stop 6 can be fixed to the counterweight 3.

[0048] In a specific application example, at least one of the aforementioned movable blocks 6 may be provided on both the first connecting block 311 and the second connecting block 312.

[0049] In some implementations, such as Figure 4 As shown, the first end 301 of the aforementioned counterweight is provided with a first support sleeve 5, which has a first protrusion. One end of the aforementioned first elastic member 41 can be sleeved on the first protrusion to achieve a detachable connection between the first elastic member 41 and the first end 301 of the counterweight. Similarly, the second end 302 of the aforementioned counterweight can be provided with a second support sleeve 10, which has a second protrusion. One end of the aforementioned second elastic member 42 can be sleeved on the second protrusion to achieve a detachable connection between the second elastic member 42 and the second end 302 of the counterweight.

[0050] One end of the first elastic element 41 that is away from the counterweight 3 can be inserted into the inner wall of the groove 2 for fixation. Similarly, one end of the second elastic element 42 that is away from the counterweight 3 can also be inserted into the inner wall of the groove 2 for fixation.

[0051] In some embodiments, the aforementioned groove 2 has opposing first and second groove walls, and the counterweight 3 is in sliding engagement with both the first and second groove walls. The counterweight 3 is in rolling engagement with the bottom surface of the groove 2. Specifically, as... Figure 3 As shown, a ball bearing 8 can be provided on the side of the counterweight 3 opposite to the bottom surface of the groove 2, and the bottom surface of the groove 2 can roll with the counterweight 3 through the ball bearing 8.

[0052] In some embodiments, the present invention also provides a piston compressor, which may include the connecting rod structure of any of the above.

[0053] For ease of understanding, the overall structure of the present invention will be described below, and its working principle will be explained.

[0054] The linkage structure of this invention mainly consists of a connecting rod 1, a counterweight 3, and an elastic element 4. The upper end of the connecting rod 1 has a groove 2, which is located at the center of the connecting rod 1 and forms a sliding channel parallel to the upper surface of the connecting rod 1 for placing the counterweight 3. The counterweight 3 is a metal block with a certain mass, its width being close to the width of the groove 2, with small gaps on both sides, allowing the counterweight 3 to slide freely along the groove 2. Ball bearings 8 are provided at the bottom of the counterweight 3, changing the contact relationship between the counterweight 3 and the connecting rod 1 from surface contact to line contact, reducing frictional loss. Both ends of the counterweight 3 are connected to the inner wall of the groove 2 via the elastic element 4. The elastic element 4 can be a spring, with one end extending into the inner wall of the groove 2 for fixation, and the other end connected to the counterweight 3 via a support sleeve.

[0055] The aforementioned groove 2 has an upward-opening structure, thus posing a risk that the counterweight 3 may detach from the top of the groove 2. To address this, a detachable movable stop 6, which can be a baffle, is provided on the counterweight 3. Limiting grooves 9, which can be sliding grooves, are provided on both sides of the groove 2. After the counterweight 3 is placed, the movable stop 6 is rotated to be perpendicular to the extension direction of the limiting groove 9, allowing it to insert into and slide within the limiting groove 9. The movable stop 6 moves in the same direction as the counterweight 3. The limiting groove 9 provides the movable stop 6 with sliding space along the length of the connecting rod 1, suppressing its sliding space along the thickness of the connecting rod 1, thus controlling the sliding range of the counterweight 3 and preventing it from detaching from the groove 2.

[0056] This invention utilizes a sliding counterweight 3 within the connecting rod 1, connected to the inner wall of the groove 2 via an elastic element 4. This allows the counterweight 3 to undergo a relative motion opposite to the piston's direction of movement during piston motion, thus partially canceling out inertial forces within the structure. Furthermore, this invention dynamically adapts to changes in the compressor's operating state, significantly reducing overall vibration and noise, improving operational stability and service life, and enhancing compressor performance and reliability. Moreover, the invention boasts a compact and rational overall structure, the counterweight 3 is easy to manufacture and process, and the assembly method is simple, enabling mass production. The connecting rod 1 is also easy to process.

[0057] It will be readily understood by those skilled in the art that, without conflict, the advantageous technical features of the above-mentioned methods can be freely combined and superimposed.

[0058] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention. The above description is only a preferred embodiment of the present invention. 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 invention, and these improvements and modifications should also be considered within the protection scope of the present invention.

Claims

1. A connecting rod structure for a piston compressor, characterized in that: It includes a connecting rod (1), one end of which is used to connect to the crankshaft of the piston compressor, and the other end of which is used to connect to the piston of the piston compressor, so that when the crankshaft rotates, it can drive the piston to reciprocate linearly through the connecting rod (1); The connecting rod (1) is provided with a counterweight (3), which can move under the action of inertial force when the connecting rod (1) moves.

2. The connecting rod structure of the piston compressor according to claim 1, characterized in that: The counterweight (3) is connected to the connecting rod (1) via an elastic element (4).

3. The connecting rod structure of the piston compressor according to claim 1 or 2, characterized in that: The connecting rod (1) is provided with a groove (2), and the counterweight (3) is used to move within the groove (2).

4. The connecting rod structure of the piston compressor according to claim 3, characterized in that: The groove (2) is a limiting guide groove; the groove (2) is used to limit and guide the movement of the counterweight (3) so that the counterweight (3) can move in a preset direction.

5. The connecting rod structure of the piston compressor according to claim 4, characterized in that: When the counterweight (3) is connected to the connecting rod (1) through the elastic element (4), the elastic element (4) includes a first elastic element (41) and a second elastic element (42); The counterweight (3) has a first end (301) and a second end (302) opposite each other in the preset direction. The first elastic element (41) is disposed on the first end (301) side of the counterweight, and the second elastic element (42) is disposed on the second end (302) side of the counterweight.

6. The connecting rod structure of the piston compressor according to any one of claims 1-2 and 4-5, characterized in that: The weight of the counterweight (3) is adjustable.

7. The connecting rod structure of the piston compressor according to claim 6, characterized in that: The counterweight (3) has a base (31) and a detachable block (32) disposed on the base (31); the weight of the counterweight (3) is adjustable by installing the detachable block (32) onto or removing it from the base (31).

8. The connecting rod structure of the piston compressor according to claim 7, characterized in that: When the connecting rod (1) is provided with a groove (2), the counterweight (3) is used to move within the groove (2), and the groove (2) is a limiting guide groove, the groove (2) is used to limit and guide the movement of the counterweight (3), so that the counterweight (3) can move in a preset direction; and the counterweight (3) is connected to the connecting rod (1) through an elastic element (4), the elastic element (4) includes a first elastic element (41) and a second elastic element (42), the counterweight (3) has a first end (301) and a second end (302) opposite to each other in the preset direction, the first elastic element (41) is disposed on the first end (301) side of the counterweight, and the second elastic element (42) is disposed on the second end (302) side of the counterweight (3), The base (31) includes a first connecting block (311) and a second connecting block (312). One end of the first connecting block (311) serves as the first end (301), and one end of the second connecting block (312) serves as the second end (302). The detachable block (32) is disposed between the first connecting block (311) and the second connecting block (312), and one end of the detachable block (32) is detachably connected to the other end of the first connecting block (311), and the other end of the detachable block (32) is detachably connected to the other end of the second connecting block (312). When the detachable block (32) is detached from the base (31), the other end of the first connecting block (311) can be detachably connected to the other end of the second connecting block (312).

9. The connecting rod structure of the piston compressor according to claim 8, characterized in that: The other end of the first connecting block (311) is provided with a screw hole (3a), and the other end of the second connecting block (312) is provided with a stud (3b), the stud (3b) being able to thread into the screw hole (3a); The detachable block (32) is provided with a stud (3b) at one end and a screw hole (3a) at the other end.

10. The connecting rod structure of the piston compressor according to any one of claims 8-9, characterized in that: The counterweight (3) is provided with a movable stop (6), and the groove (2) is provided with a limiting groove (9) on its groove wall. The limiting groove (9) and the groove (2) extend in the same direction. The movable stop (6) is used to insert into the limiting groove (9) when the counterweight (3) moves to the first position to stop the counterweight (3) in the groove (2). The movable stop (6) is used to remove the stop on the counterweight (3) when the counterweight (3) moves to the second position. The first end (301) of the counterweight is detachably connected to the first elastic element (41), and the second end (302) of the counterweight is detachably connected to the second elastic element (42), so that when the movable stop (6) moves to the second position, the counterweight (3) can be removed from the groove (2).

11. A piston compressor, characterized in that: The linkage structure includes any one of claims 1-10.

Images