An adjustable displacement automotive brake pump

Abstract

The utility model relates to a kind of adjustable displacement's automobile brake pump, belong to brake pump technical field.The adjustable displacement's automobile brake pump, comprising: pump body, the inside of the pump body is provided with plug post, the one end of the plug post is penetrated to the outside of pump body;Control mechanism, the control mechanism is installed in the inside of pump body, the surface of the control mechanism extends to the outside of pump body;Wherein, the control mechanism includes the compensation assembly installed in the inside of pump body;By setting the inner wall of pump body between the cooperation of first interior block and second interior block forms movable cavity, when movable cavity is communicated with control valve, extruding movable cavity can make that internal medium is guided to control valve, wherein due to movable cavity and the inside of pump body simultaneously export liquid, so that the displacement increases movable cavity is supplemented to displacement operation, wherein the displacement of movable cavity is regulated by the control valve being set, the displacement of brake pump is regulated according to use demand, guarantee good braking effect.

Description

Technical Field

[0001] This utility model relates to the field of brake pump technology, and in particular to an adjustable displacement automotive brake pump. Background Technology

[0002] The development of anti-lock braking systems (ABS) for automobiles in China is relatively mature. While the pump structures involved vary, the basic principle is the same: an electric motor drives a plunger to generate high pressure in a back pressure chamber, thereby achieving oil return or providing high pressure to the system. The displacement of the brake pump directly affects the performance of the braking system. Too large or too small a displacement will affect the braking effect. Too large a displacement may lead to excessive braking, while too small a displacement may lead to insufficient braking. Therefore, it is necessary to adjust the displacement to ensure the braking effect meets requirements.

[0003] A search of existing Chinese patent technology for "plunger pump for automotive braking system" with publication number "CN209469569U" reveals that this device can perform performance tests on the first and second check valves separately, which helps improve the pass rate of the plunger pump after assembly. However, during use, it is difficult to adjust the displacement of the brake pump according to usage requirements, which affects the braking effect. Utility Model Content

[0004] Therefore, it is necessary to address the problem that the displacement of the brake pump is difficult to adjust according to usage needs during use, which affects the braking effect. The brake pump is provided with an adjustable displacement, comprising: a pump body, wherein a plunger is disposed inside the pump body, and one end of the plunger extends to the outside of the pump body; and a regulating mechanism, which is installed inside the pump body, and the surface of the regulating mechanism extends to the outside of the pump body; wherein the regulating mechanism includes a compensation component installed inside the pump body, and the regulating component is disposed on the side of the compensation component away from the plunger, the surface of the regulating component extending to the outside of the pump body, and the surface of the regulating component extending to one side of the compensation component.

[0005] In one embodiment, the compensation component includes a first internal block disposed inside the pump body, the first internal block being fixedly connected to the end of the plunger, a second internal block being disposed on the side of the surface of the first internal block away from the plunger, the surface of the second internal block matching that of the first internal block, and a sealing ring being fitted on the surface of both the second internal block and the first internal block, the sealing ring being slidably connected to the inner wall of the pump body.

[0006] In one embodiment, the control component includes a plugging block fixedly connected to the pump body at the end away from the plunger. A connector is fixedly connected to the surface of the plugging block, and a conduit is fixedly connected to the side of the connector away from the plugging block. The conduit has a J-shaped horizontal cross-section.

[0007] In one embodiment, the first inner block has an inner groove, and a guide rod is slidably connected to the inner wall of the inner groove. The guide rod is fixedly connected to the surface of the second inner block.

[0008] In one embodiment, both the second inner block and the first inner block have guide channels on their surfaces, and adjacent guide channels are combined to form an outlet channel.

[0009] In one embodiment, the control assembly further includes a control valve fixedly connected to the arcuate surface of the pump body, the control valve being in communication with the interior of the pump body.

[0010] In one embodiment, a T-connector is connected to the surface of the control valve away from the pump body, the other end of the connector is connected to the T-connector, and an outlet pipe is fixedly connected to the end of the T-connector away from the control valve.

[0011] Beneficial effects

[0012] The aforementioned adjustable displacement automotive brake pump, by setting a movable chamber formed by the inner wall of the pump body between the first internal block and the second internal block, when the movable chamber is connected to the control valve, squeezing the movable chamber will cause the internal medium to be guided into the control valve. Since the liquid is discharged from both the movable chamber and the pump body at the same time, the displacement increases and the movable chamber replenishes the displacement. The displacement of the movable chamber is adjusted by the set control valve, and the displacement of the brake pump is adjusted according to the usage requirements to ensure good braking effect.

[0013] The connector allows the conduit to be used to discharge the medium into the tee pipe. When the control valve is introduced into the tee pipe, the tee pipe can guide the medium to the discharge pipe, so that the discharge medium can be regulated by the control valve to achieve the effect of adjusting the discharge volume. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the control mechanism structure of this utility model;

[0017] Figure 3 This is an exploded cross-sectional view of the compensation component of this utility model;

[0018] Figure 4 This is a schematic diagram of the exploded structure of the control component of this utility model.

[0019] Figure label:

[0020] 1. Pump body; 2. Plug; 3. Control mechanism; 31. Compensation component; 311. First internal block; 312. Second internal block; 313. Sealing ring; 314. Internal groove; 315. Guide rod; 316. Guide channel; 32. Control component; 321. Blocking block; 322. Control valve; 323. Conduit; 324. Connector; 325. T-joint; 326. Outlet pipe. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this specification are for illustrative purposes only and do not represent the only possible implementation.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0024] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0025] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this specification belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0026] The following is combined with Figures 1-4 This invention describes an adjustable displacement automotive brake pump.

[0027] In one embodiment, an adjustable displacement automotive brake pump includes: a pump body 1, with a plunger 2 disposed inside the pump body 1, one end of the plunger 2 extending to the outside of the pump body 1; and a regulating mechanism 3, which is installed inside the pump body 1 and has a surface extending to the outside of the pump body 1; wherein the regulating mechanism 3 includes a compensation component 31 installed inside the pump body 1, and a regulating component 32 disposed on the side of the compensation component 31 away from the plunger 2, with the surface of the regulating component 32 extending to the outside of the pump body 1 and extending to one side of the compensation component 31.

[0028] like Figure 1 , Figure 2 and Figure 3 As shown, the compensation component 31 includes a first internal block 311 disposed inside the pump body 1. The first internal block 311 is fixedly connected to the end of the plunger 2. A second internal block 312 is disposed on the side of the surface of the first internal block 311 away from the plunger 2. The surface of the second internal block 312 matches that of the first internal block 311. A sealing ring 313 is fitted on the surface of both the second internal block 312 and the first internal block 311. The sealing ring 313 is slidably connected to the inner wall of the pump body 1. An internal groove 314 is opened inside the first internal block 311. A guide rod 315 is slidably connected to the inner wall of the internal groove 314. The guide rod 315 is fixedly connected to the surface of the second internal block 312. A guide channel 316 is opened on the surface of both the second internal block 312 and the first internal block 311. Adjacent guide channels 316 are combined to form an outlet channel.

[0029] In this embodiment, the pusher plunger 2 drives the first internal block 311 to move synchronously inside the pump body 1. The first internal block 311 and the second internal block 312 cooperate with the inner wall of the pump body 1 to form a movable cavity. When the movable cavity moves to the control valve 322, the movable cavity is connected to the control valve 322. When the first internal block 311 is driven by the pusher plunger 2, it squeezes the medium inside the movable cavity and guides it into the control valve 322. The discharge volume increases because the movable cavity and the inside of the pump body 1 simultaneously discharge liquid.

[0030] like Figure 1 , Figure 2 and Figure 4 As shown, the control assembly 32 includes a blocking block 321 fixedly connected to the end of the pump body 1 away from the plunger 2. A connector 324 is fixedly connected to the surface of the blocking block 321. A conduit 323 is fixedly connected to the side of the connector 324 away from the blocking block 321. The horizontal cross-section of the conduit 323 is J-shaped. The control assembly 32 also includes a control valve 322 fixedly connected to the arc-shaped surface of the pump body 1. The control valve 322 communicates with the interior of the pump body 1. A three-way pipe 325 communicates with the surface of the control valve 322 away from the pump body 1. The other end of the connector 324 communicates with the three-way pipe 325. An outlet pipe 326 is fixedly connected to the end of the three-way pipe 325 away from the control valve 322.

[0031] In this embodiment, the blocking block 321 is led out to the connector 324, through which the conduit 323 can be controlled to lead out the medium to the tee pipe 325. When the control valve 322 is introduced into the tee pipe 325, the tee pipe 325 can guide the medium to the outlet pipe 326, so that the outlet medium can be regulated by the control valve 322 to achieve the effect of regulating the discharge volume.

[0032] Working principle: By pushing the plunger 2, the first internal block 311 moves synchronously inside the pump body 1. The first internal block 311 and the second internal block 312 cooperate with the inner wall of the pump body 1 to form a movable cavity. When the movable cavity moves to the control valve 322, the movable cavity is connected to the control valve 322. When the first internal block 311 is driven by the plunger 2, it squeezes the medium inside the movable cavity and guides it into the control valve 322. The movable cavity and the inside of the pump body 1, the sealing block 321 is discharged to the connector 324. The connector 324 controls the conduit 323 to discharge the medium to the three-way pipe 325. When the control valve 322 introduces the medium into the three-way pipe 325, the three-way pipe 325 guides the medium to the discharge pipe 326. The control valve 322 regulates the discharged medium to achieve the effect of regulating the discharge volume.

[0033] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0034] The above-described embodiments are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. An adjustable displacement automotive brake pump, characterized in that, include: Pump body (1), with a plug (2) inside the pump body (1), one end of the plug (2) extending to the outside of the pump body (1); A control mechanism (3) is installed inside the pump body (1), and the surface of the control mechanism (3) extends to the outside of the pump body (1); The control mechanism (3) includes a compensation component (31) installed inside the pump body (1). A control component (32) is provided on the side of the compensation component (31) away from the plunger (2). The surface of the control component (32) extends to the outside of the pump body (1) and the surface of the control component (32) extends to one side of the compensation component (31). The compensation component (31) includes a first internal block (311) disposed inside the pump body (1). The first internal block (311) is fixedly connected to the end of the plunger (2). A second internal block (312) is disposed on the side of the surface of the first internal block (311) away from the plunger (2). The surface of the second internal block (312) matches the surface of the first internal block (311). Both the surface of the second internal block (312) and the surface of the first internal block (311) are fitted with sealing rings (313). The sealing rings (313) are slidably connected to the inner wall of the pump body (1).

2. The adjustable displacement automotive brake pump according to claim 1, characterized in that, The control component (32) includes a plugging block (321) fixedly connected to the end of the pump body (1) away from the plunger (2). A connector (324) is fixedly connected to the surface of the plugging block (321). A conduit (323) is fixedly connected to the side of the connector (324) away from the plugging block (321). The horizontal cross-section of the conduit (323) is J-shaped.

3. The adjustable displacement automotive brake pump according to claim 1, characterized in that, The first internal block (311) has an internal groove (314) inside, and a guide rod (315) is slidably connected to the inner wall of the internal groove (314). The guide rod (315) is fixedly connected to the surface of the second internal block (312).

4. The adjustable displacement automotive brake pump according to claim 3, characterized in that, The surfaces of the second inner block (312) and the first inner block (311) are provided with guide channels (316), and adjacent guide channels (316) are combined to form an outlet channel.

5. The adjustable displacement automotive brake pump according to claim 2, characterized in that, The control component (32) also includes a control valve (322) fixedly connected to the arc-shaped surface of the pump body (1), and the control valve (322) is in communication with the interior of the pump body (1).

6. The adjustable displacement automotive brake pump according to claim 5, characterized in that, The surface of the control valve (322) away from the pump body (1) is connected to a three-way pipe (325), the other end of the connector (324) is connected to the three-way pipe (325), and the end of the three-way pipe (325) away from the control valve (322) is fixedly connected to an outlet pipe (326).

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