Counting device for a supercharger and supercharger

Abstract

This invention relates to a counting device and a turbocharger. The counting device includes an actuation module and a sensing module mounted on the cylinder of the turbocharger. After the piston of the turbocharger moves to a position contacting the actuation module, the piston pushes the actuation module to change position, so that the sensing module can detect the actuation signal of the actuation module. After the piston of the turbocharger moves to a position separating from the actuation module, the actuation module returns to its original position. This invention solves the technical problem that setting a magnetic ring on the piston would lead to an increase in the size and cost of the turbocharger.

Description

Technical Field

[0001] This invention relates to the field of fluid boosting technology, and more particularly to a counting device for a booster and a booster. Background Technology

[0002] A dual-piston intensifier is a pressure boosting device that divides the cylinder into four chambers using two connected pistons. During operation, appropriate valve assemblies (such as directional control valves and check valves) control the intake of air into two chambers, the exhaust of air into one chamber, and the output of pressurized high-pressure gas from the remaining chamber. To achieve continuous output of pressurized high-pressure gas, the pistons need to reciprocate to boost pressure. The reversal of the pistons can be achieved either by triggering a pneumatically controlled pilot directional control valve or by controlling an electromagnetic directional control valve with an electrical signal.

[0003] For a dual-piston intensifier controlled by a pneumatic pilot valve, it can output high-pressure gas by simply inputting pressurized gas. In order to record the number of times the intensifier works, a counting signal needs to be generated and transmitted to the counter for each cycle of piston operation.

[0004] For a dual-piston intensifier controlled by an electromagnetic reversing valve, when the piston moves to one end of its stroke (i.e., one end of the chamber), a signal is needed to control the piston reversal. This signal is transmitted to the controller (PLC), which sends a signal to control the electromagnetic reversing valve to reverse, thereby causing the piston to reverse.

[0005] Currently, magnets and proximity sensors are often used in combination to generate counting signals. For example... Figure 1 , Figure 2 As shown, a magnetic ring 300 (i.e., a magnet) is placed in the piston 200, and a position detection sensor 400 is placed in the sensor slot of the cylinder 100. When the piston 200 moves and passes the detection sensor 400, the magnetic field generated by the magnetic ring 300 changes the working state of the detection sensor 400, thereby causing the detection sensor 400 to generate a signal (which can be used as a counting signal to record the number of times the turbocharger operates). Because a magnetic ring 300 needs to be placed in the piston 200, the thickness of the piston 200 will increase. Under the condition of ensuring the same stroke, the length of the cylinder 100 also needs to be increased accordingly, which will increase the total length of the turbocharger. In addition, depending on the cylinder diameter of different cylinders 100, the volume of the magnetic ring 300 needs to increase with the increase of the cylinder diameter, which will also lead to an increase in overall cost.

[0006] There is currently no effective solution to the problem that placing a magnetic ring on the piston in related technologies leads to an increase in the size and cost of the turbocharger.

[0007] Therefore, based on years of experience and practice in related industries, the inventor proposes a counting device and a booster for boosters to overcome the shortcomings of the prior art. Summary of the Invention

[0008] The purpose of this invention is to provide a counting device and a booster for a booster, which separates the counting device from the piston of the booster, thus avoiding an increase in the size and weight of the piston and effectively controlling the overall size and cost of the booster.

[0009] Another object of the present invention is to provide a counting device for a booster and a booster, wherein the magnet in the counting device is significantly smaller in volume than that of a conventional magnetic ring, uses fewer parts, and has a simpler structure.

[0010] The objective of this invention can be achieved through the following methods:

[0011] This invention provides a counting device for a turbocharger, the counting device for a turbocharger comprising an actuation module and a sensing module disposed on the cylinder of the turbocharger;

[0012] After the piston of the booster moves to the position of contact with the actuation module, the piston pushes the actuation module to change its position so that the sensing module can detect the actuation signal of the actuation module;

[0013] After the piston of the booster moves to a position separate from the actuation module, the actuation module returns to its original position.

[0014] In a preferred embodiment of the present invention, the actuation module includes a magnet and a spring. A receiving groove is provided inside the booster, and the spring is disposed in the receiving groove. The two ends of the spring abut against the inner wall of the receiving groove and the magnet, respectively.

[0015] In a preferred embodiment of the present invention, when the piston moves toward the position close to the receiving groove, the piston can push the magnetic block to move into the receiving groove and compress the spring.

[0016] In a preferred embodiment of the present invention, when the piston moves away from the receiving groove, the piston can separate from the magnetic block, and the spring pushes the magnetic block back to its original position.

[0017] In a preferred embodiment of the present invention, the actuation module further includes a mounting base, the magnetic block is disposed on the mounting base, the mounting base is provided with a top post, the mounting base is movably disposed in the receiving groove, and the top post is located outside the receiving groove, the piston can contact the top post and push the mounting base and the magnetic block to move into the receiving groove.

[0018] In a preferred embodiment of the present invention, a groove is provided on the side of the mounting base near the spring to cooperate with the magnetic block, the magnetic block is embedded in the groove, and the top post is located on the side of the mounting base away from the spring.

[0019] In a preferred embodiment of the present invention, a buffer pad is provided at the position where the magnetic block or the mounting base contacts the piston.

[0020] In a preferred embodiment of the present invention, a cover plate is provided inside the turbocharger and at the opening of the receiving groove. The cover plate is provided with a first through hole communicating with the receiving groove. The mounting base abuts against the cover plate, and the top column extends through the first through hole to the outside of the receiving groove.

[0021] In a preferred embodiment of the present invention, a retaining ring is provided inside the turbocharger and at the opening of the receiving groove. A second through hole at the middle of the retaining ring is connected to the receiving groove. The mounting base abuts against the retaining ring, and the top post extends through the second through hole to the outside of the receiving groove.

[0022] In a preferred embodiment of the invention, the receiving groove is located on the intermediate block of the turbocharger and / or on the end cap of the cylinder.

[0023] In a preferred embodiment of the present invention, the sensing module is a proximity sensor.

[0024] In a preferred embodiment of the present invention, the detection signal output terminal of the sensing module is connected to the detection signal receiving terminal of the counter.

[0025] In a preferred embodiment of the present invention, the detection signal output terminal of the sensing module is connected to the detection signal receiving terminal of the booster controller.

[0026] The present invention provides a booster, wherein the booster is provided with the above-mentioned counting device for booster.

[0027] In a preferred embodiment of the present invention, the booster includes a cylinder and an intermediate block. The intermediate block is disposed in the middle of the cylinder and divides the cylinder into two parts. A piston is disposed in each part of the cylinder. The piston divides the interior of each part of the cylinder into a first chamber and a second chamber. A piston rod is slidably passed through the intermediate block. The two ends of the piston rod extend into the cylinders on both sides of the intermediate block and are respectively connected to the corresponding pistons.

[0028] In a preferred embodiment of the present invention, the action module is disposed on the intermediate block.

[0029] In a preferred embodiment of the present invention, an end cap is provided at one end of the cylinder body, and the actuation module is disposed on the end cap.

[0030] In a preferred embodiment of the present invention, a mounting hole is provided on the side wall of the cylinder, and the sensing module is disposed in the mounting hole.

[0031] As described above, the features and advantages of the counting device and the turbocharger of the present invention are as follows: both the action module and the sensing module are set on the cylinder of the turbocharger. After the piston of the turbocharger moves to the position of contact with the action module, it will push the action module to change its position, thereby causing the position signal of the action module detected by the sensing module to change. By changing the position signal, the position of the piston in the cylinder can be known, realizing the counting function of the reciprocating motion of the piston. In the present invention, the action module is no longer integrated on the piston, but is set separately from the piston. Therefore, the setting of the action module will not cause an increase in the piston volume and weight, nor will it affect the overall volume of the turbocharger, thus effectively controlling the volume and cost of the turbocharger. Attached Figure Description

[0032] The accompanying drawings are intended only to illustrate and explain the present invention and do not limit the scope of the invention.

[0033] in:

[0034] Figure 1 This is one of the schematic diagrams showing the installation position of the magnetic ring in the turbocharger in the prior art.

[0035] Figure 2 This is the second schematic diagram showing the installation position of the magnetic ring in the turbocharger in the prior art.

[0036] Figure 3 This is one of the schematic diagrams showing the installation position of the counting device for the booster inside the booster in an embodiment of the present invention.

[0037] Figure 4 This is one of the structural schematic diagrams of the counting device used in the booster in an embodiment of the present invention.

[0038] Figure 5 : This is a front cross-sectional view of the mounting base in the counting device used for the booster in an embodiment of the present invention.

[0039] Figure 6 This is one of the structural schematic diagrams of the magnetic block in the counting device used for the booster in an embodiment of the present invention.

[0040] Figure 7 This is a second schematic diagram of the structure of the magnetic block in the counting device used in the booster in an embodiment of the present invention.

[0041] Figure 8 This is the third schematic diagram of the structure of the magnetic block in the counting device used in the booster in this embodiment of the invention.

[0042] Figure 9 This is a second schematic diagram showing the installation position of the counting device for the booster in the booster according to an embodiment of the present invention.

[0043] Figure 10 This is a second schematic diagram of the counting device used in the booster in an embodiment of the present invention.

[0044] The reference numerals in the background art are:

[0045] 100. Cylinder; 200. Piston;

[0046] 300, magnetic ring; 400, detection sensor.

[0047] The reference numerals in the accompanying drawings of this invention are:

[0048] 1. Action Module; 101. Magnetic Block;

[0049] 102. Mounting base; 1021. Top column;

[0050] 1022. Groove; 103. Spring;

[0051] 2. Receiving groove; 3. Cover plate;

[0052] 4. Retaining ring; 401. Second through hole;

[0053] 5. Cylinder block; 501. End cap;

[0054] 6. Sensing module; 7. Intermediate block;

[0055] 8. Piston rod; 9. Piston;

[0056] 10. First chamber; 11. Second chamber. Detailed Implementation

[0057] To provide a clearer understanding of the technical features, objectives, and effects of the present invention, specific embodiments of the present invention will now be described with reference to the accompanying drawings.

[0058] The positional relationships of "left" and "right" described in the specification of this invention are all based on... Figure 3 The above description shall prevail, and will be explained here as well.

[0059] Implementation Method 1

[0060] like Figures 3 to 10As shown, the present invention provides a counting device for a turbocharger, which includes an action module 1 and a sensing module 6, both of which are disposed on the cylinder 5 of the turbocharger. After the piston 9 of the turbocharger moves to a position in contact with the action module 1, the piston 9 pushes the action module 1 to change its position so that the sensing module 6 can detect the action signal of the action module 1. After the piston 9 of the turbocharger moves to a position separate from the action module 1, the action module 1 returns to its original position.

[0061] In this invention, both the action module 1 and the sensing module 6 are mounted on the cylinder 5 of the turbocharger. During operation, when the piston 9 of the turbocharger moves to a position contacting the action module 1, its continued movement pushes the action module 1 to change position, thereby altering the relative position between the action module 1 and the sensing module 6. The sensing module 6 can then detect the action signal of the action module 1. Since this action signal corresponds to the reciprocating motion of the piston 9, the change in the action signal detected by the sensing module 6 enables the counting function of the reciprocating motion of the piston 9. When the piston 9 of the turbocharger moves to a position separate from the action module 1, the action module 1 returns to its original position after being no longer pushed by the piston 9, and the sensing module 6 also returns to its original detection signal, allowing for the next count. By separating the action module 1 from the piston 9, this invention avoids increasing the volume and weight of the piston 9 due to the action module 1, and does not affect the overall volume of the turbocharger. Therefore, it effectively controls the size and cost of the turbocharger.

[0062] In an optional embodiment of the present invention, such as Figures 3 to 10 As shown, the action module 1 includes a magnetic block 101 and a spring 103. A receiving groove 2 (a blind hole) is provided inside the booster. The magnetic block 101 is a columnar structure that can move within the receiving groove 2 along its extension direction. Both the spring 103 and the magnetic block 101 are located within the receiving groove 2, with the spring 103 positioned inside the magnetic block 101. One end of the spring 103 abuts against the bottom inner wall of the receiving groove 2, and the other end abuts against the magnetic block 101. During the movement of the piston 9 within the cylinder 5, when the piston 9 moves closer to the receiving groove 2, it pushes the magnetic block 101 into the receiving groove 2, compressing the spring 103 during this movement. When the piston 9 moves away from the receiving groove 2, it separates from the magnetic block 101, and the spring 103, under its own elastic force, pushes the magnetic block 101 back to its original position.

[0063] Furthermore, the magnetic block 101 can be, but is not limited to, a magnet, or a block structure made of other magnetic materials, as long as it can trigger the sensing module 6 to generate a detection signal.

[0064] In an optional embodiment of the present invention, such as Figure 4 , Figure 10 As shown, the action module 1 also includes a mounting base 102, a magnetic block 101 fixedly mounted on the mounting base 102, a top post 1021 mounted on the mounting base 102, the mounting base 102 being movably mounted in the receiving groove 2 along the extending direction of the receiving groove 2, and the top post 1021 extending from the opening of the receiving groove 2 to the outside of the receiving groove 2. During the movement of the piston 9, the piston 9 can contact the top post 1021, thereby driving the mounting base 102 and the magnetic block 101 to move synchronously into the receiving groove 2 by pushing the top post 1021.

[0065] Specifically, such as Figure 4 , Figure 5 , Figure 10 As shown, a groove 1022 that mates with a magnetic block 101 is provided on the side of the mounting base 102 near the spring 103. The magnetic block 101 is fixedly embedded in the groove 1022, and the top post 1021 is located on the side of the mounting base 102 away from the spring 103.

[0066] Of course, different connection methods can be used between the magnetic block 101 and the mounting base 102, and magnetic blocks 101 with different shapes and structures can be set to meet the usage requirements.

[0067] One alternative embodiment, such as Figure 6 As shown, the mounting base 102 does not have a groove 1022. The magnetic block 101 is directly connected to the mounting base 102 on the side closest to the spring 103. A top post 1021 is provided on the side of the mounting base 102 away from the spring 103. The magnetic block 101 and the mounting base 102 can be connected by adhesive or other methods (such as bolt connection), as long as the connection between the magnetic block 101 and the mounting base 102 is stable.

[0068] In one alternative embodiment, the mounting base 102 may be omitted, and only the top post 1021 may be provided. The top post 1021 is positioned on the side of the magnetic block 101 away from the spring 103. The magnetic block 101 and the top post 1021 may be connected by adhesive or other means (such as bolt connection) to ensure a stable connection between the magnetic block 101 and the top post 1021.

[0069] Another alternative embodiment, such as Figure 7 As shown, the mounting base 102 may be omitted, only the magnetic block 101 may be provided, and the top post 1021 may be directly set as part of the magnetic block 101.

[0070] In an optional embodiment of the present invention, such as Figure 8As shown, a buffer pad 12 is provided at the contact position between the mounting base 102 and the piston 9 (i.e., on the top post 1021 of the mounting base 102) to buffer and reduce impact force. Alternatively, if only the magnetic block 102 is provided, the buffer pad 12 can be directly placed at the contact position between the magnetic block 102 and the piston 9. The buffer pad 12 prevents damage to the magnetic block 102 during long-term operation.

[0071] In the first embodiment of the present invention, as Figure 3 , Figure 4 As shown, the action module 1 can be set on the middle block 7 of the turbocharger (i.e., the receiving groove 2 is opened on the middle block 7 of the turbocharger), at which time the top post 1021 on the mounting base 102 extends into the chamber inside the cylinder 5.

[0072] In the first embodiment described above, as Figure 3 , Figure 4 As shown, a cover plate 3 is fixedly installed inside the turbocharger at the opening of the receiving groove 2. The cover plate 3 has a first through hole (not shown) communicating with the receiving groove 2. The mounting seat 102 located inside the receiving groove 2 abuts against the cover plate 3, and the top column 1021 extends through the first through hole on the cover plate 3 to the outside of the receiving groove 2 (i.e., the chamber inside the cylinder 5). During the movement, the piston 9 impacts the cover plate 3, preventing it from directly contacting the intermediate block 7 of the turbocharger and causing damage to the intermediate block 7. Moreover, the cover plate 3 also serves to limit the mounting seat 102 and the magnetic block 101, preventing the mounting seat 102 and the magnetic block 101 from moving out of the receiving groove 2.

[0073] In the second embodiment of the present invention, as Figure 9 , Figure 10 As shown, the action module 1 can be set on the end cover 501 of the cylinder body 5 (that is, the receiving groove 2 is opened on the end cover 501 of the cylinder body 5), and at this time the top post 1021 on the mounting base 102 extends into the cavity inside the cylinder body 5.

[0074] In the second embodiment described above, as Figure 9 , Figure 10 As shown, a retaining ring 4 is fixedly installed inside the turbocharger at the opening of the receiving groove 2. A second through hole 401 is provided in the middle of the retaining ring 4, and the second through hole 401 is connected to the receiving groove 2. The mounting seat 102 located in the receiving groove 2 abuts against the retaining ring 4, and the top post 1021 extends through the second through hole 401 on the retaining ring 4 to the outside of the receiving groove 2 (i.e., the cavity inside the cylinder body 5). The retaining ring 4 is provided to limit the mounting seat 102 and the magnetic block 101, preventing the mounting seat 102 and the magnetic block 101 from moving out of the receiving groove 2.

[0075] In an optional embodiment of the present invention, the sensing module 6 may be, but is not limited to, a proximity sensor. The detection signal output terminal of the proximity sensor is connected to the detection signal receiving terminal of the counter. The proximity sensor sends the detected signal to the counter, thereby realizing the counting function of the reciprocating motion of the piston 9. In addition, the detection signal output terminal of the sensing module 6 is also connected to the detection signal receiving terminal of the controller of the booster. The control signal output terminal of the controller is connected to the control terminal of the solenoid directional valve in the booster. The proximity sensor sends the detected signal to the controller, which controls the solenoid directional valve of the booster to control the reversing direction, thereby controlling the movement direction of the piston 9 and enabling the piston 9 to continuously increase pressure.

[0076] Furthermore, the controller for the booster is an existing controller that can control the operating state of the booster's solenoid directional valve, which may be, but is not limited to, a PLC controller.

[0077] The action module 1 (magnetic block 101) in the counting device for the turbocharger of the present invention can be set not only on the intermediate block 7 and / or end cover 501 of the turbocharger, but also on other positions on the cylinder 5 of the turbocharger according to the actual situation. It can realize the functions of counting the reciprocating motion of the piston 9 and controlling the movement direction of the piston 9.

[0078] The action module 1 (magnetic block 101) in the counting device for the turbocharger of the present invention can be set on the end cover 501 of a general cylinder to realize the function of counting the reciprocating motion of the piston 9 of the cylinder and controlling the movement direction of the piston 9.

[0079] The counting device for turbochargers of the present invention can be installed not only on dual-piston turbochargers, but also on other types of turbochargers (such as turbochargers with three pistons), and can realize the functions of counting the reciprocating motion of piston 9 and controlling the direction of movement of piston 9.

[0080] The working process of the counting device for the booster of the present invention is as follows: During the operation of the booster, when the piston 9 of the booster moves to the position of contacting the top column 1021 on the mounting base 102, the piston 9 continues to move in this direction, which pushes the top column 1021 to move inward to the receiving groove 2. This, in turn, causes the mounting base 102 and the magnetic block 101 to move synchronously through the top column 1021, pushing the spring 103 to a compressed state. During this process, the relative position between the magnetic block 101 and the proximity sensor changes, and the proximity sensor can detect the action signal of the magnetic block 101. Since this action signal corresponds to the reciprocating motion of the piston 9 (i.e., the piston 9 completes one reciprocating motion, triggering a signal change), the counting device... The change in the motion signal detected by the proximity sensor enables the counting function of the reciprocating motion of the piston 9. After the change in the motion signal detected by the proximity sensor, the signal is sent to the controller of the intensifier. The controller controls the solenoid reversing valve of the intensifier to change the direction of movement of the piston 9. When the piston 9 moves to the position separated from the top column 1021, the top column 1021, no longer subjected to the thrust of the piston 9, synchronously returns to its original position under the action of the spring force of the spring 103, along with the mounting base 102 and the magnetic block 101. At this time, the position signal of the magnetic block 101 detected by the proximity sensor also returns to the original detection signal, and the system can wait for the piston 9 to trigger the motion signal in the next movement.

[0081] The features and advantages of the counting device for booster of the present invention are as follows:

[0082] 1. In the counting device for the booster, the magnetic block 101 is set in the cylinder 5 of the booster. The magnetic block 101 is set as a separate module from the piston 9. The setting of the magnetic block 101 will not cause an increase in the volume and weight of the piston 9, nor will it affect the overall volume of the booster. It can effectively control the volume and cost of the booster.

[0083] Second, in the counting device for the turbocharger, the magnetic block 101 can be set on the middle block 7 and / or the end cover 501 of the cylinder 5 of the turbocharger. The setting of the magnetic block 101 will not cause an additional increase in the volume of other components, so that the counting device in this invention will not affect the normal installation and operation of the turbocharger.

[0084] Third, compared with traditional magnetic rings, the magnetic block 101 in the counting device used for boosters is smaller in size and requires fewer parts. While meeting the counting requirements, it has a simpler structure and lower cost, making it suitable for widespread use.

[0085] Implementation Method 2

[0086] like Figure 3 As shown, the present invention provides a booster, which is provided with a counting device for booster.

[0087] Specifically, such as Figure 3 As shown, the booster includes a cylinder body 5 and an intermediate block 7. The intermediate block 7 is located in the middle of the cylinder body 5 and divides the cylinder body 5 into left and right parts. Each part of the cylinder body 5 contains a piston 9, which is movably disposed within the cylinder body 5. The annular outer edge of the piston 9 is slidably sealed to the inner wall of the cylinder body 5. The two pistons 9 respectively divide the interior of each part of the cylinder body 5 into a first chamber 10 and a second chamber 11. A piston rod 8 slidably passes through the intermediate block 7, with both ends extending into the cylinder bodies 5 on the left and right sides of the intermediate block 7 and connecting to the corresponding pistons 9. During the operation of the booster, the movement of the piston rod 8 drives the two pistons 9 located at its ends to move within the cylinder body 5. The movement of the pistons 9 changes the volume of each first chamber 10 and each second chamber 11, thereby achieving the purpose of outputting high-pressure gas after boosting.

[0088] In an optional embodiment of the present invention, such as Figure 3 As shown, action module 1 can be set on intermediate block 7.

[0089] Specifically, such as Figure 3 , Figure 4 As shown, the receiving groove 2 is formed on the intermediate block 7 of the supercharger, and the top post 1021 on the mounting base 102 extends into the first chamber 10. As the piston 9 moves toward the receiving groove 2, it compresses the volume of the first chamber 10 located on the right side of the intermediate block 7 until the proximity sensor detects a change in the position of the magnetic block 101.

[0090] In another alternative embodiment of the invention, such as Figure 9 As shown, an end cap 501 is provided at one end of the cylinder body 5, and the actuation module 1 can be installed on the end cap 501.

[0091] Specifically, such as Figure 9 , Figure 10 As shown, the receiving groove 2 is formed on the end cover 501, and the top post 1021 on the mounting base 102 extends into the second chamber 11. As the piston 9 moves toward the receiving groove 2, it compresses the volume of the second chamber 11 located to the right of the intermediate block 7 until the proximity sensor detects a change in the position of the magnetic block 101.

[0092] In another alternative embodiment of the invention, such as Figure 3 As shown, mounting holes are provided on the side wall of the cylinder body 5, and the sensing module 6 is fixedly installed in the mounting holes. Of course, other methods can also be used to fix the sensing module 6 to the cylinder body 5, as long as the position of the sensing module 6 relative to the cylinder body 5 remains unchanged and the action signal of the magnetic block 101 can be detected.

[0093] In order to record the number of times the booster operates and to control the switching of the booster via the electromagnetic reversing valve, the booster of the present invention needs to generate an output signal to a counter in each working cycle (i.e., the piston 9 reciprocates once) and output the signal to a controller. The controller controls the electromagnetic reversing valve to switch according to the received signal, thereby controlling the switching of the piston and realizing the continuous boosting of the booster.

[0094] The features and advantages of the booster of the present invention are:

[0095] In this booster, the placement of the magnetic block 101 and the proximity sensor does not affect the overall volume of the booster. While accurately recording the number of operations, it can achieve continuous boosting of the booster. Furthermore, the booster of this invention has the advantages of simple structure, small size, and low cost.

[0096] The above description is merely an illustrative embodiment of the present invention and is not intended to limit the scope of the invention. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principles of the present invention should fall within the scope of protection of the present invention.

Claims

1. A counting device for a booster, characterized in that, The counting device for the turbocharger includes an action module (1) and a sensing module (6) disposed on the cylinder (5) of the turbocharger. The action module (1) includes a magnetic block (101) and a spring (103). A receiving groove (2) is provided inside the booster. The spring (103) is disposed in the receiving groove (2). One end of the spring (103) abuts against the inner wall of the receiving groove (2), and the other end of the spring (103) abuts against the magnetic block (101). After the piston (9) of the booster moves to the position of contact with the action module (1), the piston (9) continues to move and pushes the magnetic block (101) into the receiving groove (2). The sensing module (6) detects the action signal of the magnetic block (101) and counts the reciprocating motion of the piston (9). After the piston (9) of the booster moves to a position separate from the action module (1), the action module (1) returns to its original position.

2. The counting device for a booster as described in claim 1, characterized in that, When the piston (9) moves away from the receiving groove (2), the piston (9) can separate from the magnetic block (101), and the spring (103) pushes the magnetic block (101) back to its original position.

3. The counting device for a booster as described in claim 1, characterized in that, The action module (1) also includes a mounting base (102), the magnetic block (101) is disposed on the mounting base (102), the mounting base (102) is provided with a top post (1021), the mounting base (102) is movably disposed in the receiving groove (2), and the top post (1021) is located outside the receiving groove (2), the piston (9) can contact the top post (1021) and push the mounting base (102) and the magnetic block (101) to move into the receiving groove (2).

4. The counting device for a booster as described in claim 3, characterized in that, The mounting base (102) has a groove (1022) on the side near the spring (103) that cooperates with the magnetic block (101). The magnetic block (101) is embedded in the groove (1022). The top post (1021) is located on the side of the mounting base (102) away from the spring (103).

5. The counting device for a booster as described in claim 3, characterized in that, A buffer pad (12) is provided at the position where the magnetic block (101) or the mounting base (102) contacts the piston (9).

6. The counting device for a booster as described in claim 3 or 4, characterized in that, Inside the booster and at the opening of the accommodating groove (2), there is a cover plate (3). The cover plate (3) has a first through hole that communicates with the accommodating groove (2). The mounting base (102) abuts against the cover plate (3), and the top column (1021) extends through the first through hole to the outside of the accommodating groove (2).

7. The counting device for a booster as described in claim 3 or 4, characterized in that, A retaining ring (4) is provided inside the booster and at the opening of the receiving groove (2). The second through hole in the middle of the retaining ring (4) is connected to the receiving groove (2). The mounting base (102) abuts against the retaining ring (4), and the top column (1021) extends through the second through hole to the outside of the receiving groove (2).

8. The counting device for a booster as claimed in claim 1, characterized in that, The receiving groove (2) is located on the intermediate block (7) of the turbocharger and / or on the end cap (501) of the cylinder (5).

9. The counting device for a booster as claimed in claim 1, characterized in that, The sensing module (6) is a proximity sensor.

10. The counting device for a booster as claimed in claim 1, characterized in that, The detection signal output terminal of the sensing module (6) is connected to the detection signal receiving terminal of the counter.

11. The counting device for a booster as claimed in claim 1, characterized in that, The detection signal output terminal of the sensing module (6) is connected to the detection signal receiving terminal of the booster controller.

12. A booster, characterized in that, The booster is provided with a counting device for the booster as described in any one of claims 1 to 11.

13. The turbocharger as claimed in claim 12, characterized in that, The booster includes a cylinder (5) and an intermediate block (7). The intermediate block (7) is located in the middle of the cylinder (5) and divides the cylinder (5) into two parts. Each part of the cylinder (5) is provided with a piston (9). The piston (9) divides the interior of each part of the cylinder (5) into a first chamber (10) and a second chamber (11). A piston rod (8) is slidably passed through the intermediate block (7). The two ends of the piston rod (8) extend into the cylinder (5) on both sides of the intermediate block (7) and are respectively connected to the corresponding piston (9).

14. The turbocharger as claimed in claim 13, characterized in that, The action module (1) is set on the intermediate block (7).

15. The booster as claimed in claim 13, characterized in that, One end of the cylinder (5) is provided with an end cap (501), and the action module (1) is provided on the end cap (501).

16. The booster as claimed in claim 13, characterized in that, The cylinder body (5) has a mounting hole on its side wall, and the sensing module (6) is installed in the mounting hole.

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