Brake pump with fault early warning function

Abstract

The invention provides a brake pump with a fault early warning function, and relates to the field of brake pumps, the brake pump with the fault early warning function comprises a lower cover, a middle body and an upper cover, and the lower cover, the middle body and the upper cover form a pump body. The lower cover is arranged at the bottom of the middle body, the upper cover is arranged at the top of the middle body, and a piston, a lower diaphragm, a lower push rod, an upper diaphragm and an upper push rod are sequentially arranged in the pump body from bottom to top. The right side of the middle body is connected with two air pipes. According to the brake pump with the fault early warning function, a pump body is composed of a lower cover, a middle body and an upper cover, a piston, a lower diaphragm, a lower push rod, an upper diaphragm and an upper push rod are sequentially arranged in the pump body from bottom to top, the lower push rod is sleeved with a lower special-shaped spring, and the upper push rod is sleeved with an upper special-shaped spring. Through cooperation of the shell sleeve, the first magnetic block, the second magnetic block, the small grating module and the first steel wire, fatigue strength detection is conducted on the upper heterosexual spring, the reset capacity of the upper heterosexual spring is judged according to whether the upper heterosexual spring can drag the first magnetic block to reset or not, and information is fed back to a user in real time.

Description

Technical Field

[0001] The present invention relates to the technical field of brake pumps, and specifically to a brake pump capable of fault warning. Background Art

[0002] The brake chamber, also known as the brake pump. Its function is to convert the pressure of compressed air into the mechanical force that rotates the brake camshaft to achieve the braking action. The brake chamber is a diaphragm type clamped by a clamp. The front and rear brake chambers are of different sizes, but their structures are basically the same. It consists of an air inlet, a cover, a diaphragm, a support plate, a return spring, a housing, a push rod, a connecting fork, a clamp and bolts, etc.

[0003] For example, "A semi-closed double-membrane brake chamber" (CN202021452395.6) is disclosed in the Chinese Patent Network. With long-term use, the internal parts of the brake pump are fatigued and damaged. However, the user cannot see the internal situation of the brake pump from the outside and can only know that the brake pump cannot be used continuously after a failure occurs. Therefore, it is impossible to replace it in advance. Summary of the Invention

[0004] (1) Technical Problems to be Solved

[0005] In view of the deficiencies of the prior art, the present invention provides a brake pump capable of fault warning, and solves the problems raised in the above background art.

[0006] (2) Technical Solutions

[0007] To achieve the above objectives, the present invention is realized through the following technical solutions: A brake pump capable of fault warning includes a lower cover, a middle body, and an upper cover, and the pump body is composed of the lower cover, the middle body, and the upper cover. The lower cover is provided at the bottom of the middle body, the upper cover is provided at the top of the middle body, and a piston, a lower diaphragm, a lower push rod, an upper diaphragm, and an upper push rod are sequentially arranged in the pump body from bottom to top.

[0008] Two air pipes are connected to the right side of the middle body. A partition is provided in the middle body. The upper diaphragm is provided between the upper cover and the middle body. The upper end of the upper push rod extends outside the upper cover, and the lower end of the upper push rod is connected to the upper diaphragm. An upper anisotropic spring is connected between the upper diaphragm and the top of the inner wall of the upper cover.

[0009] The upper end of the lower push rod passes through the partition and contacts the upper diaphragm. The movable end of the piston penetrates the lower diaphragm and is connected to the lower end of the lower push rod. A lower anisotropic spring is connected between the partition and the lower diaphragm, and the lower end of the piston is connected to the lower cover.

[0010] A thick spring is sleeved outside the piston. The upper end of the thick spring is connected to the movable end of the piston, and the lower end of the thick spring is connected to the bottom of the inner wall of the lower cover. A sensing module one is provided at the top of the inner wall of the upper cover, and a sensing module two is provided below the partition. The sensing module one is used to detect the fatigue strength of the upper anisotropic spring, and the sensing module two is used to detect the fatigue strength of the lower anisotropic spring.

[0011] Preferably, the first sensing module includes a housing sleeve, a first magnet, a second magnet, a small grating module, and a first steel wire. The inside of the housing sleeve is hollow. The housing sleeve is arranged at the top of the inner wall of the upper cover. The first magnet is arranged at the top of the inner wall of the housing sleeve. The second magnet is slidably fitted inside the housing sleeve and is located below the first magnet. The small grating module is arranged at the top of the inner wall of the upper cover. The housing sleeve is located inside the small grating module. One end of the first steel wire is connected to the lowest point of the upper heteromorphic spring helix, and the other end of the first steel wire is connected to the lower end of the second magnet.

[0012] Preferably, the N pole of the first magnet faces downward, and the S pole of the second magnet faces upward. Two small holes are symmetrically opened on both sides of the housing sleeve. The light emitted by the small grating module can pass through the small holes. The upper heteromorphic spring is sleeved outside the upper push rod. The upper end of the upper heteromorphic spring is connected to the inner wall of the upper cover. The lower end of the upper push rod is connected to a tray that contacts the upper diaphragm. The lower end of the upper heteromorphic spring is connected to the tray.

[0013] Preferably, the second sensing module includes a positioning block, a first tension detection unit, a second steel wire, and a third steel wire. The positioning block is connected to the inner wall of the middle body. Both ends of the first tension detection unit are connected to the second steel wire. One of the second steel wires is connected to the positioning block, and the other second steel wire is connected to the lower end of the lower push rod. The working end of the first tension detection unit is connected to the third steel wire. The end of the third steel wire away from the first tension detection unit is connected to the lower heteromorphic spring helix.

[0014] Preferably, a slide rail is provided at the bottom of the inner wall of the lower cover. The slide rail is arranged concentrically with the piston. A driving seat is slidably fitted in the slide rail. A vertical rod is connected to the driving seat. A light spot sensing unit is connected to the side of the vertical rod close to the piston, and a first magnetic strip is connected to the side of the vertical rod away from the piston.

[0015] Preferably, a second magnetic strip is slidably fitted on the piston helix. A light beam emitting unit is provided on the side of the second magnetic strip facing the vertical rod. A convex block is provided at the upper end of the piston helix. The second magnetic strip is attracted by the first magnetic strip.

[0016] Preferably, the two air pipes are arranged vertically. The upper air pipe extends above the partition board, and the lower air pipe extends below the partition board. Two fixing rings are provided inside the air pipes. A plurality of sliding rods are connected between the two fixing rings. A second tension detection unit is connected to the body of the sliding rod. A small ball is provided between the two fixing rings. A rubber band is connected between the small ball and the second tension detection unit.

[0017] Preferably, the piston, the lower push rod, and the upper push rod are on the same axis. A reinforcing ring is further included, and the reinforcing ring is used to fix the lower cover, the middle body, and the upper cover.

[0018] (III) Beneficial Effects

[0019] The present invention provides a brake pump capable of fault warning, having the following beneficial effects:

[0020] 1. The brake pump capable of fault warning consists of a lower cover, a middle body, and an upper cover to form a pump body. Inside the pump body, a piston, a lower diaphragm, a lower push rod, an upper diaphragm, and an upper push rod are arranged in sequence from bottom to top. A lower anisotropic spring is sleeved outside the lower push rod, and an upper anisotropic spring is sleeved outside the upper push rod. Through the cooperation of a housing sleeve, a first magnet, a second magnet, a small grating module, and a first steel wire, the fatigue strength of the upper anisotropic spring is detected. According to whether the upper anisotropic spring can pull the first magnet back to its original position, the reset ability of the upper anisotropic spring is judged, and the information is fed back to the user in real time, facilitating the user to know the internal part conditions of the brake pump, so as to achieve the purpose of replacing the brake pump in time when it is completely unable to be used.

[0021] 2. The brake pump capable of fault warning has a second sensing module, which consists of a positioning block, a first tension detection unit, a second steel wire, and a third steel wire. The second steel wire suspends the first tension detection unit on the side of the lower anisotropic spring. The lower anisotropic spring applies force to the first tension detection unit through the third steel wire. After the lower anisotropic spring finishes working, according to whether the measured value of the first tension detection unit can reach a predetermined value, it plays a role in judging the reset effect of the lower anisotropic spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a three-dimensional structure diagram of the present invention;

[0023] Figure 2 is a cross-sectional structure diagram of the present invention;

[0024] Figure 3 is a diagram showing the internal structure of the present invention;

[0025] Figure 4 is the present invention Figure 2 a magnified structure diagram of part A in;

[0026] Figure 5 is a schematic structural diagram of the first sensing module of the present invention;

[0027] Figure 6 is a schematic structural diagram of the second sensing module of the present invention;

[0028] Figure 7 is a cross-sectional structure diagram of the piston of the present invention.

[0029] In the figure: 1 lower cover, 11 piston, 12 thick spring, 13 lower diaphragm, 2 middle body, 21 air pipe, 22 partition board, 23 lower push rod, 24 lower anisotropic spring, 3 upper cover, 31 upper diaphragm, 32 upper push rod, 33 upper anisotropic spring, 4 sensing module one, 41 housing sleeve, 42 magnet one, 43 magnet two, 44 small grating module, 45 steel wire one, 5 sensing module two, 51 positioning block, 52 tension detection unit one, 53 steel wire two, 54 steel wire three, 6 slide rail, 61 vertical rod, 62 light spot induction unit, 63 magnetic strip one, 7 magnetic strip two, 71 light beam emission unit, 8 bump, 9 fixing ring, 91 sliding rod, 92 tension detection unit two, 93 small ball, 94 rubber band, 10 reinforcing ring. Detailed implementation mode

[0030] An embodiment of the present invention provides a brake pump capable of fault warning, as Figure 1-7 shown, including a lower cover 1, a middle body 2, and an upper cover 3, which form a pump body together with the lower cover 1, the middle body 2, and the upper cover 3. The lower cover 1 is fixedly installed at the bottom of the middle body 2, the upper cover 3 is fixedly installed at the top of the middle body 2, and a piston 11, a lower diaphragm 13, a lower push rod 23, an upper diaphragm 31, and an upper push rod 32 are sequentially arranged in the pump body from bottom to top.

[0031] Two air pipes 21 are welded and communicated on the right side of the middle body 2. A partition board 22 is fixedly installed in the middle body 2. The upper diaphragm 31 is clamped between the upper cover 3 and the middle body 2. The upper end of the upper push rod 32 extends outside the upper cover 3. The lower end of the upper push rod 32 is fixedly bonded to the upper diaphragm 31. An upper anisotropic spring 33 is fixedly installed between the upper diaphragm 31 and the top inner wall of the upper cover 3.

[0032] The upper end of the lower push rod 23 passes through the partition board 22 and contacts the upper diaphragm 31. The movable end of the piston 11 penetrates the lower diaphragm 13 and is welded to the lower end of the lower push rod 23. A sealing ring is fixedly installed between the lower push rod 23 and the movable end of the piston 11. The sealing ring is a prior art to prevent air leakage between the upper and lower diaphragms 13.

[0033] A lower anisotropic spring 24 is fixedly installed between the partition board 22 and the lower diaphragm 13. The lower end of the piston 11 is fixedly installed on the lower cover 1.

[0034] A thick spring 12 is sleeved outside the piston 11. The upper end of the thick spring 12 is fixedly connected to the movable end of the piston 11, and the lower end of the thick spring 12 is welded to the bottom inner wall of the lower cover 1. A sensing module one 4 is provided at the top inner wall of the upper cover 3, and a sensing module two 5 is provided below the partition board 22. The sensing module one 4 is used to detect the fatigue strength of the upper anisotropic spring 33, and the sensing module two 5 is used to detect the fatigue strength of the lower anisotropic spring 24.

[0035] The sensing module 1 4 includes a housing 41, a first magnetic block 42, a second magnetic block 43, a small grating module 44, and a first steel wire 45. The interior of the housing 41 is hollow. The housing 41 is fixedly installed at the top of the inner wall of the upper cover 3. The first magnetic block 42 is fixedly embedded at the top of the inner wall of the housing 41. The second magnetic block 43 is slidably fitted inside the housing 41 and is located below the first magnetic block 42. The small grating module 44 is fixedly installed at the top of the inner wall of the upper cover 3. The housing 41 is located inside the small grating module 44. One end of the first steel wire 45 is fixedly tied to the lowest point of the helix of the upper heteromorphic spring 33, and the other end of the first steel wire 45 is fixedly tied to the lower end of the second magnetic block 43.

[0036] The N magnetic pole of the first magnetic block 42 faces downward, and the S magnetic pole of the second magnetic block 43 faces upward. Two small holes are symmetrically opened on both sides of the housing 41, and the light emitted by the small grating module 44 can pass through the small holes. The upper heteromorphic spring 33 is sleeved outside the upper push rod 32. The upper end of the upper heteromorphic spring 33 abuts against the inner wall of the upper cover 3. The lower end of the upper push rod 32 is connected to a tray that contacts the upper diaphragm 31. The lower end of the upper heteromorphic spring 33 is welded to the tray. The above-mentioned small holes are arranged vertically.

[0037] As shown in the appendix Figure 2 、 3 When the upper heteromorphic spring 33 is in its normal working state as shown. When the brake pump starts to brake, the upper heteromorphic spring 33 contracts, the first steel wire 45 becomes slack, and the second magnetic block 43 is attracted upward by the first magnetic block 42. The second magnetic block 43 passes through the small hole and blocks the uppermost small hole.

[0038] After the brake pump finishes braking, the upper heteromorphic spring 33 expands again. The upper heteromorphic spring 33 tightens the first steel wire 45, and the second magnetic block 43 descends to the lowest position.

[0039] If the fatigue strength of the upper heteromorphic spring 33 exceeds a certain limit, the upper heteromorphic spring 33 cannot fully recover, and the second magnetic block 43 cannot return to the lowest position. Therefore, it cannot pass through the small hole at the lowest position. According to this feature, the small grating module 44 transmits information to the vehicle master controller and transmits information to the outside.

[0040] The sensing module 2 5 includes a positioning block 51, a first tension detection unit 52, a second steel wire 53, and a third steel wire 54. The positioning block 51 is welded to the inner wall of the middle body 2. Both ends of the first tension detection unit 52 are fixedly tied to the second steel wire 53. One of the second steel wires 53 is fixedly tied to the positioning block 51, and the other second steel wire 53 is fixedly tied to the lower end of the lower push rod 23. The working end of the first tension detection unit 52 is fixedly tied to the third steel wire 54. The end of the third steel wire 54 away from the first tension detection unit 52 is fixedly tied to the helix of the lower heteromorphic spring 24.

[0041] Working principle: When the lower anisotropic spring 24 is in a normal state, the steel wire 2 53 and the steel wire 3 54 are just tightened, and the value measured by the tension detection unit 1 52 is constant. When the fatigue strength of the lower anisotropic spring 24 exceeds the limit, the lower anisotropic spring 24 cannot be reset to the original state, and the steel wire 2 53 and the steel wire 3 54 are relaxed. At this time, the value measured by the tension detection unit 1 52 changes. The tension detection unit 1 52 feeds back the information to the vehicle master controller.

[0042] A slide rail 6 is welded to the bottom of the inner wall of the lower cover 1. The slide rail 6 is arranged concentrically with the piston 11. A driving seat is slidably fitted inside the slide rail 6. A vertical rod 61 is fixedly installed on the driving seat. A light spot sensing unit 62 is fixedly installed on the side of the vertical rod 61 close to the piston 11, and a magnetic strip 63 is fixedly installed on the side of the vertical rod 61 away from the piston 11.

[0043] The piston 11 spiral body is slidably matched with a magnetic strip 2 7, and a light beam emitting unit 71 is fixedly installed on the side of the magnetic strip 2 7 facing the vertical rod 61. A bump 8 is welded on the upper end of the piston 11 spiral body. The magnetic strip 2 7 is attracted by the magnetic strip 1 63. When the brake pump is operating, the vertical rod 61 will never contact the lower diaphragm 13. The light emitted by the light beam emitting unit 71 forms a light spot on the light spot sensing unit 62.

[0044] Working principle: After the brake pump is finished working, the driving seat drives the vertical rod 61 to move along the slide rail 6. Under the influence of the magnetic force, the magnetic strip 2 7 follows the movement. The magnetic strip 2 7 rises along the thick spring 11, and the light spot generation position continues to rise. The light spot sensing unit 62 keeps recording until the magnetic strip 2 7 conflicts with the bump 8.

[0045] When the magnetic strip 2 7 contacts the protrusion 8, the magnetic strip 2 7 cannot move further and does not follow the movement of the vertical rod 6. When the thick spring cannot recover due to fatigue strength, the final stop position of the light spot will be lowered, and the light spot sensing unit 62 records the final stop position of the light spot and feeds it back to the vehicle master controller.

[0046] The two air pipes 21 are arranged up and down, the upper air pipe 21 extends to the top of the partition 22, and the lower air pipe 21 extends to the bottom of the partition 22. Two fixing rings 9 are fixedly installed in the air pipe 21, a plurality of slide bars 91 are welded between the two fixing rings 9, a tension detection unit 2 92 is fixedly installed on the slide bar 91, a small ball 93 is arranged between the two fixing rings 9, and a rubber band 94 is fixedly tied between the small ball 93 and the tension detection unit 2 92.

[0047] When the air pipe 21 delivers air, it blows the small ball 93, and the small ball 93 pulls the rubber band 94, and the tension detection unit 2 92 generates a value. When the brake pump is working, if the tension detection unit 2 92 generates a value, but there is no braking effect, and the sensing module 1 4 and the sensing module 2 5 measure that the heterosexual spring is normal, it means that the diaphragm is cracked and leaking.

[0048] The piston 11, the lower push rod 23, and the upper push rod 32 are on the same axis. There is also a reinforcing ring 10, which is used to fix the lower cover 1, the middle body 2, and the upper cover 3. The reinforcing ring 10 fixedly clamps the connection between the lower cover 1 and the middle body 2, and the reinforcing ring 10 fixedly clamps the connection between the middle body 2 and the upper cover 3. This is a conventional technical means. And the electronic components in the pump body are provided by the vehicle's on-board battery. Since this is a conventional technical means, it will not be described in detail.

[0049] In summary, the brake pump capable of fault warning is composed of a pump body including a lower cover 1, a middle body 2, and an upper cover 3. Inside the pump body, a piston 11, a lower diaphragm 13, a lower push rod 23, an upper diaphragm 31, and an upper push rod 32 are arranged in sequence from bottom to top. A lower anisotropic spring 24 is sleeved outside the lower push rod 23, and an upper anisotropic spring 33 is sleeved outside the upper push rod. Through the cooperation of the housing sleeve 41, the first magnet 42, the second magnet 43, the small grating module 44, and the first steel wire 45, the fatigue strength of the upper anisotropic spring 33 is detected. According to whether the upper anisotropic spring 33 can pull the first magnet 42 back to its original position, the reset ability of the upper anisotropic spring 33 is judged, and the information is fed back to the user in real time, so that the user can know the conditions of the internal parts of the brake pump, and the purpose of replacing the brake pump in time when it completely fails to be used is achieved.

[0050] Moreover, the second sensing module 5 is composed of a positioning block 51, a first tension detection unit 52, a second steel wire 53, and a third steel wire 54. The second steel wire 53 suspends the first tension detection unit 52 on the side of the lower anisotropic spring 33. The lower anisotropic spring 33 applies a force to the first tension detection unit 52 through the third steel wire 54. After the lower anisotropic spring 33 finishes working, according to whether the value measured by the first tension detection unit 52 can reach a predetermined value, the reset effect of the lower anisotropic spring 33 is judged.

[0051] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A brake pump capable of fault warning, comprising a lower cover (1), a middle body (2), and an upper cover (3). The pump body is composed of the lower cover (1), the middle body (2), and the upper cover (3), and is characterized in that: The lower cover (1) is provided at the bottom of the middle body (2), and the upper cover (3) is provided at the top of the middle body (2). Inside the pump body, a piston (11), a lower diaphragm (13), a lower push rod (23), an upper diaphragm (31), and an upper push rod (32) are sequentially arranged from bottom to top; Two air pipes (21) are connected to the right side of the middle body (2). A partition (22) is provided inside the middle body (2). The upper diaphragm (31) is arranged between the upper cover (3) and the middle body (2). The upper end of the upper push rod (32) extends outside the upper cover (3), and the lower end of the upper push rod (32) is connected to the upper diaphragm (31). An upper anisotropic spring (33) is connected between the upper diaphragm (31) and the top of the inner wall of the upper cover (3); The upper end of the lower push rod (23) passes through the partition (22) and contacts the upper diaphragm (31). The movable end of the piston (11) penetrates the lower diaphragm (13) and is connected to the lower end of the lower push rod (23). A lower anisotropic spring (24) is connected between the partition (22) and the lower diaphragm (13). The lower end of the piston (11) is connected to the lower cover (1); A thick spring (12) is sleeved outside the piston (11). The upper end of the thick spring (12) is connected to the movable end of the piston (11), and the lower end of the thick spring (12) is connected to the bottom of the inner wall of the lower cover (1). A sensing module one (4) is provided at the top of the inner wall of the upper cover (3), and a sensing module two (5) is provided below the partition (22). The sensing module one (4) is used to detect the fatigue strength of the upper anisotropic spring (33), and the sensing module two (5) is used to detect the fatigue strength of the lower anisotropic spring (24).

2. The brake pump capable of fault warning according to claim 1, wherein: The sensing module one (4) includes a housing sleeve (41), a magnet one (42), a magnet two (43), a small grating module (44), and a wire one (45). The inside of the housing sleeve (41) is hollow. The housing sleeve (41) is arranged at the top of the inner wall of the upper cover (3). The magnet one (42) is arranged at the top of the inner wall of the housing sleeve (41). The magnet two (43) is slidably fitted inside the housing sleeve (41) and is located below the magnet one (42). The small grating module (44) is arranged at the top of the inner wall of the upper cover (3). The housing sleeve (41) is located inside the small grating module (44). One end of the wire one (45) is connected to the lowest point of the helix of the upper anisotropic spring (33), and the other end of the wire one (45) is connected to the lower end of the magnet two (43).

3. The brake pump capable of fault warning according to claim 2, wherein: The N magnetic pole of the magnet one (42) faces downward, and the S magnetic pole of the magnet two (43) faces upward. Two small holes are symmetrically opened on both sides of the housing sleeve (41). The light emitted by the small grating module (44) can pass through the small holes. The upper anisotropic spring (33) is sleeved outside the upper push rod (32). The upper end of the upper anisotropic spring (33) is connected to the inner wall of the upper cover (3). A tray that contacts the upper diaphragm (31) is connected to the lower end of the upper push rod (32). The lower end of the upper anisotropic spring (33) is connected to the tray.

4. The brake pump capable of fault warning according to claim 3, characterized in that: The second sensing module (5) includes a positioning block (51), a first tension detection unit (52), a second steel wire (53), and a third steel wire (54). The positioning block (51) is connected to the inner wall of the middle body (2). Both ends of the first tension detection unit (52) are connected to the second steel wire (53). One of the second steel wires (53) is connected to the positioning block (51), and the other second steel wire (53) is connected to the lower end of the lower push rod (23). The working end of the first tension detection unit (52) is connected to the third steel wire (54). The end of the third steel wire (54) far from the first tension detection unit (52) is connected to the helix of the lower different-shaped spring (24).

5. The brake pump capable of fault warning according to claim 4, wherein: At the bottom of the inner wall of the lower cover (1), there is a slide rail (6). The slide rail (6) is concentrically arranged with the piston (11). A driving seat is slidably fitted in the slide rail (6). A vertical rod (61) is connected to the driving seat. A light spot sensing unit (62) is connected to the side of the vertical rod (61) close to the piston (11). A first magnetic strip (63) is connected to the side of the vertical rod (61) far from the piston (11).

6. The brake pump capable of fault warning according to claim 5, wherein: A second magnetic strip (7) is slidably fitted on the helix of the piston (11). A light beam emitting unit (71) is provided on the side of the second magnetic strip (7) facing the vertical rod (61). A convex block (8) is provided at the upper end of the helix of the piston (11). The second magnetic strip (7) is attracted by the first magnetic strip (63).

7. The brake pump capable of fault warning according to claim 6, wherein: The two air pipes (21) are arranged vertically. The upper air pipe (21) extends above the partition plate (22), and the lower air pipe (21) extends below the partition plate (22). Two fixing rings (9) are provided in the air pipe (21). A plurality of sliding rods (91) are connected between the two fixing rings (9). A second tension detection unit (92) is connected to the rod body of the sliding rod (91). A small ball bead (93) is provided between the two fixing rings (9). A rubber band (94) is connected between the small ball bead (93) and the second tension detection unit (92).

8. The brake pump capable of fault warning according to claim 7, wherein: The piston (11), the lower push rod (23), and the upper push rod (32) are on the same axis. There is also a reinforcing ring (10) for fixing the lower cover (1), the middle body (2), and the upper cover (3).

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