Door mud discharge limiter

Abstract

The invention discloses a door mud discharge limiter, comprising a fixing seat, a limit arm and a limit box; the limit arm is formed with multiple groups of limit grooves at intervals along its length direction; each group of limit grooves comprises two arc grooves symmetrically opened on two corresponding upper and lower plate surfaces of the limit arm; a through mud discharge hole is opened in the limit groove; a avoidance hole passing through the limit arm is opened on the limit box; the space on both sides of the limit arm inside the limit box is connected with a mud discharge slider through a spring, the mud discharge slider is pressed against the limit arm through the spring, and the contact surface between the mud discharge slider and the limit arm is a hemispherical structure. The invention improves the structure of the existing limit arm and the limit box, and through the mud discharge hole and the mud discharge slider, the slider adopts a hemispherical head mud discharge design, and muddy water, gravel, and oil are discharged separately. The limit arm is provided with a mud discharge hole, so that muddy water, gravel, and oil are discharged through the mud discharge hole, thereby improving the service life of the limiter by more than 10%.

Description

Technical Field

[0001] The present invention relates to a door stopper device for a vehicle, which can keep a door at a predetermined opening angle, and more particularly to a door mud stopper. Background Art

[0002] A door check device for a vehicle includes a connecting rod and a guide assembly. The connecting rod has one end pivotally supported by the vehicle body and the other end entering the door through an aperture provided in the door panel. The guide assembly is mounted on the inner side of the door. The guide assembly has boots that slide on the surface of the connecting rod when the door is being opened or closed. The resistance generated on the contact surface of the boot and the connecting rod, on which the boot and the connecting rod contact each other, keeps the door at a predetermined opening angle.

[0003] The application date is 2016.12.20, and the authorization announcement number is CN107489324B. A door limiter device for a vehicle is provided, including: a connecting rod, which is pivotally supported by a vehicle body and enters the door through an opening provided on the door, and has a stop portion and a support portion on the connecting rod; a guide assembly, which slides on the stop portion when the door is being opened or closed; a stop mechanism, which is fixed to the connecting rod; and an elastic cover, which is engaged with the support portion, and when the door is closed, the elastic cover closes the opening from the outside of the door.

[0004] However, since the limiter is often exposed to the external environment during use, rainy weather may cause silt to accumulate inside the limiter, thus affecting the use effect of the limiter.

[0005] Therefore, how to provide a door stopper that can effectively maintain the door at a predetermined opening angle and at the same time have good mud and water discharge functions is a problem that technical personnel in this field urgently need to solve. Summary of the invention

[0006] In view of this, the present invention provides a door mud discharge limiter, aiming to solve the above technical problems.

[0007] In order to achieve the above object, the present invention adopts the following technical solution:

[0008] A door mud limiter comprises a fixing seat, a limit arm and a limit box; the fixing seat is fixedly connected to the vehicle body; one end of the limit arm is hinged to the fixing seat, and the other end is formed with a buffer block; the limit box is connected to the vehicle door and slidably connected to the limit arm;

[0009] The limiting arm is formed with a plurality of groups of limiting grooves at intervals along its length direction; each group of the limiting grooves comprises two arc grooves symmetrically opened on two corresponding upper and lower plate surfaces of the limiting arm; a through mud discharge hole is opened in the limiting groove;

[0010] The limit box is provided with an avoidance hole passing through the limit arm; the space on both sides of the limit arm inside the limit box is connected to a mud discharge slider through a spring, and the mud discharge slider is pressed against the limit arm by the spring, and the contact surface between the mud discharge slider and the limit arm is a hemispherical structure.

[0011] Through the above technical scheme, the present invention improves the structure of the existing limit arm and limit box. By cooperating with the mud discharge hole and the mud discharge slider, the slider adopts a hemispherical head mud discharge design to discharge mud, water, sand and gravel, and oil separately. The limit arm adds a mud discharge hole to discharge mud, water, sand and gravel, and oil through the mud discharge hole, thereby increasing the service life of the limiter by more than 10%.

[0012] Preferably, in the above-mentioned door mud discharge limiter, the limit arm includes a steel core plate and a plastic coated plate; a limit pin is vertically inserted at one end of the steel core plate away from the fixing seat; the number of the plastic coated plates is two, and the two plastic coated plates are symmetrically fixed on the two side plates of the steel core plate and wrap the steel core plate and the limit pin; the mud discharge hole includes a mud discharge inner hole opened on the steel core plate and a mud discharge outer hole opened on the plastic coated plate. The limit arm uses two injection molding to fix the buffer block and the limit arm together, which improves the reliability and stability of the product.

[0013] Preferably, in the above-mentioned door mud limiter, the surface of the steel core plate is formed with pitting and a plurality of bosses, so as to improve the structural stability of the injection molding connection.

[0014] Preferably, in the above-mentioned door mud limiter, the end of the limit arm is connected to the fixing seat through a hinged rivet; and an oil storage tank is formed on the inner wall of the through hole connected to the hinged rivet on the steel core plate to improve the smoothness of rotation.

[0015] Preferably, in the above-mentioned door mud limiter, a protruding buffer rubber pad is embedded in the side of the buffer block facing the fixing seat, which can achieve a good buffering effect.

[0016] Preferably, in the above-mentioned door mud discharge limiter, the mud discharge slider is provided with an annular mounting groove on one side facing the spring, and the annular mounting groove is used for plugging with the spring; the mud discharge slider located above the limit arm is provided with a plurality of mud and water passing holes around the annular mounting groove; the side edges of the two mud discharge sliders are respectively vertically extended with limit guide ribs, the two limit guide ribs are arranged in opposite directions, and are respectively clamped on the two side edges of the limit arm. This can improve the stability of the movement of the mud discharge slider and the mud and water discharge effect.

[0017] Preferably, in the above-mentioned door mud limiter, the limit box is provided with a water outlet and a weight reduction outlet, so that water can be discharged through the water outlet, so that water will not accumulate in the limit box and the weight can be reduced.

[0018] It can be seen from the above technical solutions that, compared with the prior art, the present invention discloses a door mud limiter, which has the following beneficial effects:

[0019] 1. The present invention improves the structure of the existing limit arm and limit box. Through the cooperation of the mud discharge hole and the mud discharge slider, the slider adopts a hemispherical head mud discharge design to discharge mud, water, sand and gravel, and oil separately. The limit arm is provided with a mud discharge hole to discharge mud, water, sand and gravel, and oil through the mud discharge hole, thereby increasing the service life of the limiter by more than 10%.

[0020] 2. The limit arm of the present invention uses two injection moldings to fix the buffer block and the limit arm together, thereby improving the reliability and stability of the product.

[0021] 3. The limit box of the present invention is provided with a drainage port and a weight-reducing port, so that water can be discharged through the drainage port, so that water will not accumulate in the limit box and the weight is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0023] Figure 1 The accompanying drawing is a schematic structural diagram of a door mud discharge stopper provided by the present invention;

[0024] Figure 2 The accompanying drawing is a structural exploded view of the door mud discharge stopper provided by the present invention;

[0025] Figure 3 The accompanying drawing is a cross-sectional view of the door mud discharge stopper provided by the present invention;

[0026] Figure 4 The accompanying drawing is a schematic structural diagram of a limit arm provided by the present invention;

[0027] Figure 5 The accompanying drawings provide Figure 4 A magnified view of the part A in the middle;

[0028] Figure 6 The accompanying drawing is a schematic diagram of the structure of the steel core plate provided by the present invention;

[0029] Figure 7 The accompanying drawing is a transverse cross-sectional view of the limit box provided by the present invention;

[0030] Figure 8 The accompanying drawing is a schematic structural diagram of the arrangement of two mud discharge sliders provided by the present invention;

[0031] Fig. 9 The accompanying drawing is a schematic structural diagram of a spring provided by the present invention;

[0032] Fig.10 The accompanying drawing is a schematic structural diagram of a first box body according to Embodiment 1 provided by the present invention;

[0033] Fig.11 The accompanying drawing is a schematic structural diagram of a first cover body according to Embodiment 1 of the present invention;

[0034] Fig.12 The accompanying drawing is a schematic structural diagram of a vehicle door mud discharge stopper according to Embodiment 2 of the present invention;

[0035] Fig.13 The accompanying drawing is a cross-sectional view of a vehicle door mud discharge stopper according to Embodiment 2 of the present invention;

[0036] Fig.14 The accompanying drawing is a schematic structural diagram of a limit box according to Embodiment 2 provided by the present invention;

[0037] Fig.15 The accompanying drawing is a schematic structural diagram of the arrangement of two guide rods according to Embodiment 2 provided by the present invention;

[0038] Fig.16 The accompanying drawing is a schematic structural diagram of the arrangement of two mud discharge sliders according to Embodiment 2 provided by the present invention;

[0039] Fig.17 The accompanying drawing is a schematic structural diagram of a vehicle door mud discharge stopper according to Embodiment 3 of the present invention;

[0040] Fig.18 The accompanying drawing is a cross-sectional view of a vehicle door mud discharge stopper according to Embodiment 3 of the present invention;

[0041] Fig.19 The accompanying drawing is a schematic structural diagram of a second box body of Example 3 provided by the present invention;

[0042] Fig. 20 The accompanying drawing is a schematic structural diagram of the second cover body of Example 3 provided by the present invention.

[0043] in:

[0044] 1-Fixed seat;

[0045] 11-Hinged rivet;

[0046] 2-Limiting arm;

[0047] 21-limiting groove; 211 arc groove; 22-mud discharge hole; 221-mud discharge inner hole; 222-mud discharge outer hole; 23-steel core board; 231-pressing pitting; 232-boss; 233-oil storage tank; 24-plastic coated board; 25-limiting pin;

[0048] 3-Limiting box;

[0049] 31-avoidance hole; 32-spring; 33-mud discharge slider; 331-hemispherical structure; 332-annular mounting groove; 333-mud and water passing hole; 334-limiting guide rib; 335-guide hole; 34-first box body; 341-first square hole; 342-first pressure riveting screw; 343-pressure riveting bending rib; 344-first weight reduction hole; 35-first cover plate; 351-second square hole; 352-riveting Square hole; 353-first drainage gap; 354-second weight-reducing hole; 36-U-shaped plate; 361-third square hole; 362-second pressure rivet screw; 363-guide rod; 37-second box body; 371-fourth square hole; 372-riveted surface; 373-second drainage gap; 38-second cover plate; 381-fifth square hole; 382-rivet buckle; 383-third pressure rivet screw; 384-leakage hole;

[0050] 4-buffer block;

[0051] 41- Buffer rubber pad. DETAILED DESCRIPTION

[0052] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0053] See attached Figure 1 To Attachment Fig. 9The embodiment of the present invention discloses a door mud limiter, comprising a fixing seat 1, a limit arm 2 and a limit box 3; the fixing seat 1 is fixedly connected to the vehicle body; one end of the limit arm 2 is hinged to the fixing seat 1, and the other end is formed with a buffer block 4; the limit box 3 is connected to the vehicle door and is slidably connected to the limit arm 2;

[0054] The limiting arm 2 is formed with a plurality of groups of limiting grooves 21 at intervals along its length direction; each group of limiting grooves 21 includes two arc grooves 211 symmetrically opened on two corresponding upper and lower plate surfaces of the limiting arm 2; a through mud discharge hole 22 is opened in the limiting groove 21;

[0055] An avoidance hole 31 passing through the limit arm 2 is opened on the limit box 3; the space on both sides of the limit arm 2 inside the limit box 3 is connected to a mud discharge slider 33 through a spring 32, and the mud discharge slider 33 is pressed against the limit arm 2 by the spring 32, and the contact surface between the mud discharge slider 33 and the limit arm 2 is a hemispherical structure 331.

[0056] In order to further optimize the above technical solution, the limiting arm 2 includes a steel core board 23 and a plastic-coated board 24; a limiting pin 25 is vertically inserted at one end of the steel core board 23 away from the fixed seat 1; there are two plastic-coated boards 24, and the two plastic-coated boards 24 are symmetrically fixed on the two side surfaces of the steel core board 23, and wrap the steel core board 23 and the limiting pin 25; the mud discharge hole 22 includes a mud discharge inner hole 221 opened on the steel core board 23 and a mud discharge outer hole 222 opened on the plastic-coated board 24.

[0057] In order to further optimize the above technical solution, pitting 231 and a plurality of bosses 232 are formed on the surface of the steel core plate 23 .

[0058] In order to further optimize the above technical solution, the end of the limiting arm 2 is connected to the fixing seat 1 through a hinged rivet 11; and an oil storage tank 233 is formed on the inner wall of the through hole on the steel core plate 23 connected to the hinged rivet 11.

[0059] In order to further optimize the above technical solution, a protruding buffer rubber pad 41 is embedded in the side of the buffer block 4 facing the fixing seat 1 .

[0060] In order to further optimize the above technical solution, the mud discharge slider 33 is provided with an annular mounting groove 332 on the side facing the spring 23, and the annular mounting groove 332 is used for plugging with the spring 23; the mud discharge slider 33 located above the limiting arm 2 is provided with a plurality of mud and water passing holes 333 around the annular mounting groove 332; the side edges of the two mud discharge sliders 33 are respectively vertically extended with limiting guide ribs 334, and the two limiting guide ribs 334 are arranged in opposite directions and are respectively clamped on the two side edges of the limiting arm 2.

[0061] Embodiment 1:

[0062] See attached Fig.10 To Attachment Fig.11 The limit box 3 includes a first box body 34 and a first cover plate 35; a first square hole 341 is provided on the bottom surface of the first box body 34; the first square hole 341 passes through the limit arm 2; a first rivet screw 342 is riveted and fixed on the outer side of the bottom surface of the first box body 34, and the edge of the first box body 34 has a riveted bending rib 343; a plurality of first weight-reducing holes 344 are provided on the first box body 34; a second square hole 351 is provided on the first cover plate 35, and the second square hole 351 passes through the limit arm 2; a riveted square hole 352 is formed on the edge of the first cover plate 35, and the riveted square hole 352 is fixed with the riveted bending rib 343, so that the first cover plate 35 and the first box body 34 are riveted and fixed, and the first cover plate 35 faces the buffer block 4, and the first box body 34 faces the fixing seat 1; a first drainage notch 353 is provided on the edge of the first cover plate 35; a plurality of second weight-reducing holes 354 are provided on the first cover plate 35.

[0063] Embodiment 2:

[0064] See attached Fig.12 To Attachment Fig.16 The limit box 3 includes a U-shaped plate 36; a third rectangular hole 361 is opened in the middle of the middle plate of the U-shaped plate 36, and the third rectangular hole 361 passes through the limit arm 2; the middle plate of the U-shaped plate 36 is fixed with a second rivet screw 362 by riveting; two guide rods 363 are fixed between the two side plates of the U-shaped plate 36, and the two guide rods 363 are located on both sides of the spring 32, pass through the mud discharge slider 33, and are slidably connected to the mud discharge slider 33. Guide holes 335 slidably connected to the guide rods 363 are opened on both sides of the mud discharge slider 33.

[0065] Embodiment 3:

[0066] See attached Fig.17 To Attachment Fig. 20 The limit box 3 includes a second box body 37 and a second cover plate 38; a fourth square hole 371 is provided on the bottom surface of the second box body 37; the fourth square hole 371 passes through the limit arm 2; a riveted surface 372 is formed on the edge of the second box body 37; a plurality of second drainage gaps 373 are provided on the edge of the second box body 37; a fifth square hole 381 is provided on the second cover plate 38, and the fifth square hole 381 passes through the limit arm 2; a rivet buckle 382 is formed on the edge of the second cover plate 38, and the rivet buckle 382 is fixed with the riveted surface 372, so that the second cover plate 38 and the second box body 37 are riveted and fixed, and the second cover plate 38 faces the fixing seat 1, and the second box body 37 faces the buffer block 4; a third rivet screw 383 is riveted and fixed on the outer side of the second cover plate 38; a water leakage hole 384 is formed on the edge of the second cover plate 38.

[0067] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0068] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A door mud limiter, comprising a fixing seat (1), a limit arm (2) and a limit box (3); the fixing seat (1) is fixedly connected to the vehicle body; one end of the limit arm (2) is hinged to the fixing seat (1), and the other end is formed with a buffer block (4); the limit box (3) is connected to the vehicle door and is slidably connected to the limit arm (2); the characteristics are: The limiting arm (2) is formed with a plurality of groups of limiting grooves (21) at intervals along its length direction; each group of the limiting grooves (21) comprises two arc-shaped grooves (211) symmetrically opened on two upper and lower corresponding plate surfaces of the limiting arm (2); and a through mud discharge hole (22) is opened in the limiting groove (21); The limit box (3) is provided with an avoidance hole (31) passing through the limit arm (2); the space on both sides of the limit arm (2) inside the limit box (3) is connected to a mud discharge slider (33) via a spring (32); the mud discharge slider (33) is pressed against the limit arm (2) via the spring (32); and the contact surface between the mud discharge slider (33) and the limit arm (2) is a hemispherical structure (331); The limiting arm (2) comprises a steel core plate (23) and a plastic-coated plate (24); a limiting pin (25) is vertically inserted at one end of the steel core plate (23) away from the fixing seat (1); the number of the plastic-coated plates (24) is two, and the two plastic-coated plates (24) are symmetrically fixed on the two side plate surfaces of the steel core plate (23) and wrap the steel core plate (23) and the limiting pin (25); the mud discharge hole (22) comprises a mud discharge inner hole (221) opened on the steel core plate (23) and a mud discharge outer hole (222) opened on the plastic-coated plate (24); The end of the limit arm (2) is connected to the fixing seat (1) via a hinged rivet (11); an oil storage tank (233) is formed on the inner wall of the through hole on the steel core plate (23) connected to the hinged rivet (11); The mud discharge slider (33) is provided with an annular mounting groove (332) on one side facing the spring (32), and the annular mounting groove (332) is used for plugging with the spring (32); the mud discharge slider (33) located above the limiting arm (2) is provided with a plurality of mud and water passing holes (333) around the annular mounting groove (332); and limiting guide ribs (334) are respectively vertically extended from the side edges of the two mud discharge sliders (33), and the two limiting guide ribs (334) are arranged in opposite directions and are respectively clamped on the two side edges of the limiting arm (2).

2. A door mud limiter according to claim 1, characterized in that: The surface of the steel core plate (23) is formed with pitting (231) and a plurality of bosses (232).

3. A door mud limiter according to claim 1, characterized in that: A protruding buffer rubber pad (41) is embedded in the side surface of the buffer block (4) facing the fixing seat (1).

4. A door mud limiter according to any one of claims 1-3, characterized in that: The limit box (3) comprises a first box body (34) and a first cover plate (35); a first square hole (341) is provided on the bottom surface of the first box body (34); the first square hole (341) passes through the limit arm (2); a first riveting screw (342) is fixed to the outer side of the bottom surface of the first box body (34) by riveting, and the edge of the first box body (34) has a riveting bending rib (343); a plurality of first weight-reducing holes (344) are provided on the first box body (34); a second square hole (351) is provided on the first cover plate (35), and the second square hole (35 1) passes through the limiting arm (2); a riveted square hole (352) is formed on the edge of the first cover plate (35), and the riveted square hole (352) cooperates with the riveted bending rib (343) to be fixed, so that the first cover plate (35) and the first box body (34) are riveted and fixed, and the first cover plate (35) faces the buffer block (4), and the first box body (34) faces the fixing seat (1); a first drainage notch (353) is opened on the edge of the first cover plate (35); and a plurality of second weight-reducing holes (354) are opened on the first cover plate (35).

5. A door mud limiter according to any one of claims 1-3, characterized in that: The limit box (3) comprises a U-shaped plate (36); a third rectangular hole (361) is opened in the middle of the middle plate of the U-shaped plate (36), and the third rectangular hole (361) passes through the limit arm (2); the middle plate of the U-shaped plate (36) is fixed with a second riveting screw (362) by riveting; two guide rods (363) are fixed between two side plates of the U-shaped plate (36), and the two guide rods (363) are located on both sides of the spring (32), pass through the mud discharge slider (33), and are slidably connected to the mud discharge slider (33).

6. A door mud limiter according to claim 5, characterized in that: Guide holes (335) slidably connected to the guide rods (363) are provided on both sides of the mud discharge sliding block (33).

7. A door mud limiter according to any one of claims 1 to 3, characterized in that: The limit box (3) comprises a second box body (37) and a second cover plate (38); a fourth square hole (371) is formed on the bottom surface of the second box body (37); the fourth square hole (371) passes through the limit arm (2); a riveted surface (372) is formed on the edge of the second box body (37); a plurality of second drainage notches (373) are formed on the edge of the second box body (37); a fifth square hole (381) is formed on the second cover plate (38); the fifth square hole (381) passes through the limit arm (2); A rivet buckle (382) is formed at the edge of the second cover plate (38), and the rivet buckle (382) is fixed in cooperation with the riveted surface (372), so that the second cover plate (38) and the second box body (37) are riveted and fixed, and the second cover plate (38) faces the fixing seat (1), and the second box body (37) faces the buffer block (4); a third rivet screw (383) is riveted and fixed on the outer side surface of the second cover plate (38); and a water leakage hole (384) is formed at the edge of the second cover plate (38).

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