High-strength pull rod screw for braking

Abstract

The invention discloses a high-strength pull rod screw for braking, and relates to the field of automobiles. The lower end of a butt joint connecting part assembly is fixedly connected with a pull rod screw end body; a built-in preset oil supply channel is formed in the butt joint connecting part assembly and the pull rod screw end body, a second attaching sealing layer is bonded to the upper end of the built-in preset oil supply channel in a butt joint mode, and a vertical guide reserved groove is formed in the lower end of the outer side of the butt joint connecting part assembly. According to the high-strength pull rod screw for braking, the abutting reserved butt joint piece at the lower end makes contact with the interior of a brake disc to abut against and move inwards, so that the transverse locking supporting piece making contact with the abutting reserved butt joint piece is pressed through the inclined face of the abutting reserved butt joint piece, and the transverse locking supporting piece is pushed to move outwards along the interior of the butt joint connecting part assembly; and the transverse locking supporting pieces on the outer sides of the screw holes abut against the interiors of the screw holes for secondary positioning, and therefore the installation strength and stability of the whole screw are efficiently improved.

Description

Technical Field

[0001] The invention relates to the technical field of automobiles, in particular to a high-strength pull rod screw for brakes. Background Art

[0002] The brake components of a car need to be equipped with a variety of corresponding parts, among which the tie rod screw is one of the main parts for brake adjustment. The quality of its quality determines the quality of the overall car brake; For example, the patented split diffuser connection adjustment tie rod screw with publication number CN216158063U includes: a head for connecting with the end of the tie rod and a screw for connecting with the diffuser, the head and the screw are integrally formed, the head is provided with a receiving cavity, a limit block is provided in the receiving cavity, the end of the tie rod extends into the receiving cavity and rotates to the limit block to lock. The use of an integrated tie rod screw eliminates the need to weld pins, can lock the tie rod through the limit part, and can prevent the welding position from falling off due to corrosion in corrosive gases, which is safe and reliable with high production efficiency; Another example is a screw with a patent publication number CN105275954A, which includes a head and a threaded portion. A column extends vertically on the head. The threaded portion encapsulates the column inside the threaded portion, and the head and the column are an integrally formed ferromagnetic structure. The threaded portion is a plastic mixture that is added during processing to improve the overall strength of the thread. A positioning pin made of plastic is provided at the end of the threaded portion. A positioning portion is provided at the connection between the threaded portion and the head. The positioning portion is provided with an anti-wear layer that matches the bottom surface of the head. The anti-wear layer is made of a soft material. At the same time, the threaded portion is a plastic mixture, which can prevent the screw from rusting easily after long-term use, resulting in poor locking effect. The positioning pin is provided on the head, which can achieve rapid positioning. At the same time, an anti-wear layer is provided to prevent hard collisions with objects. For example, the patent with publication number CN1854541A discloses a screw, particularly a screw with a protruding tooth on the head, which comprises a threaded shank and a head. The characteristic of the screw head is that the outer peripheral side surface is provided with one or more protruding teeth, so that the width of the outer peripheral side surface of the screw head including the protruding teeth is slightly larger than the outer diameter of the screw head of the same standard, and thereby forms a biting part of the screw cap, so that the cap can be conveniently mounted on the screw head and has the effect of not being easy to fall off; Most of the above-mentioned existing technologies have improved their overall structure, but the existing brake rod screws are relatively simple in use and are easily loosened and fallen off due to vibration after installation. The overall supporting strength is relatively limited, and the overall service life will be reduced under the influence of high pressure, thereby affecting the safety of the overall equipment. Summary of the invention

[0003] The purpose of the present invention is to provide a high-strength pull rod screw for brakes, so as to solve the problem raised in the above background technology that during use, the overall structure is relatively simple, and after installation is completed, it is very easy to loosen and fall off due to vibration and the like, and the overall supporting strength is relatively limited. Under the influence of high pressure strength, its overall service life will be reduced, thereby affecting the safety of the overall equipment.

[0004] To achieve the above object, the present invention provides the following technical solution: a high-strength pull rod screw for brake, comprising a butt connection component and a pull rod screw end body, wherein the lower end of the butt connection component is fixedly connected to the pull rod screw end body; The butt-joint assembly and the end body of the pull rod screw are provided with a built-in preset oil supply channel, and the upper end of the built-in preset oil supply channel is bonded and butted with a second fitting sealing layer, the lower end of the outer side of the butt-joint assembly is provided with a vertical guide reserved groove, and the inner side of the vertical guide reserved groove is nested with a resistance reserved butt joint piece, the resistance reserved butt joint piece is butted with the inner side of the butt-joint assembly, and a high-strength positioning structure for auxiliary positioning is provided between the butt-joint assembly and the resistance reserved butt joint piece; An oil self-lubricating supply structure is arranged between the butt connection component and the end body of the pull rod screw.

[0005] Furthermore, the high-strength positioning structure is provided with a beveled abutment docking piece, and the beveled abutment docking piece is fixedly connected to the outer side of the abutment reserved docking piece, and the beveled abutment docking piece is arranged on the inner side of the vertical guide reserved groove; a transverse locking support piece is laterally nested and installed on the inner side of the docking connection part assembly, and an external docking nested piece is nested and installed on the outer end of the transverse locking support piece.

[0006] Furthermore, a built-in reserved liquid bag assembly is docked inside the end side of the transverse locking support member, and the built-in reserved liquid bag assembly is docked with the inner side of the external docking nesting member, and an external reserved through hole is opened outwardly of the transverse locking support member, and the position of the external reserved through hole corresponds to that of the built-in reserved liquid bag assembly.

[0007] Furthermore, the reserved interference docking parts are symmetrically distributed about the center point of the docking connection part assembly, and the reserved interference docking parts move upward along the inner side of the vertical guide reserved groove when exposed to external force, and the ends of the reserved interference docking parts and the transverse locking support parts are both inclined structures.

[0008] Furthermore, during the upward movement of the resisting reserved docking piece, pressure is applied to the contacting transverse locking support piece, pushing the transverse locking support piece to move outward along the interior of the docking connection part assembly; the external docking nesting piece on the outer side of the transverse locking support piece is pre-forced to move inward, thereby applying pressure to the contacting built-in reserved liquid capsule assembly, so that the built-in reserved liquid capsule assembly protrudes outward through the external reserved through hole.

[0009] Furthermore, the oil self-lubricating supply structure is provided with a resisting transverse docking piece, and the resisting transverse docking piece is arranged on the inner side of the docking connection part assembly, and a transverse guide reserved groove is opened inside the docking connection part assembly, and the transverse guide reserved groove is nested and docked with the resisting transverse docking piece.

[0010] Furthermore, a fitting butt press piece is fixedly connected to the outer side of the resisting transverse butt piece, and the fitting butt press piece is arranged inside the built-in preset oil supply channel, and the lower end surface of the built-in preset oil supply channel is connected to the first fitting sealing layer.

[0011] Furthermore, when the reserved resistance docking piece is forced to move upward, the outer inclined resistance docking piece is driven to move upward synchronously, and the inclined resistance docking piece applies pressure to the contacting resistance transverse docking piece, so that the resistance transverse docking piece forms a transverse sliding structure along the interior of the docking connection part assembly through the transverse guide reserved groove.

[0012] Furthermore, the interfering transverse docking parts and the fitting docking pressing parts are symmetrically distributed about the center point of the docking connection part assembly, and the interfering transverse docking parts drive the two groups of fitting docking pressing parts to contact each other during the inward movement, thereby pressurizing the oil inside the built-in preset oil supply channel, so that it is automatically supplied to the outside through the first fitting sealing layer.

[0013] Compared with the prior art, the present invention has the following beneficial effects: The high-strength pull rod screw for brake is provided with a high-strength positioning structure. As the docking connection component and the end body of the pull rod screw are installed along the inside of the automobile brake disc through special tools, the reserved abutment at its lower end will contact the inside of the brake disc to move inward, thereby applying pressure to the contacting transverse locking support through its inclined surface, thereby pushing the transverse locking support to move outward along the inside of the docking connection component. As the screw is installed, the transverse locking support on its outer side is then abutted and positioned along the inside of the screw hole for secondary abutment, thereby effectively improving the installation strength and stability of the overall screw. After the installation is completed, it will not loosen or fall off due to vibration and the like. The overall support strength is relatively large, and its overall service life will not be reduced under the influence of high pressure strength, thereby improving the safety of the overall equipment. Furthermore, in the process of the lateral locking support being pressed and moved outward for auxiliary positioning, the externally-mounted docking nested piece on its outer side will be pre-stressed along the inner side of the screw hole, thereby moving inward along the inner side of the lateral locking support, thereby applying pressure to the contacted built-in reserved liquid capsule component, so that the built-in reserved liquid capsule component protrudes outward through the externally-mounted through hole on the outer side of the lateral locking support, thereby performing secondary filling of the gap between the contacted screw hole and the screw, thereby improving the installation friction of the overall screw, further improving its support strength and stability, and avoiding easy loosening; Furthermore, an oil self-lubricating supply structure is provided. When the reserved butt joint piece is forced to move upward, it will drive the outer inclined butt joint piece to move upward along the inner side of the butt joint component, thereby applying pressure to the contacting transverse butt joint piece, allowing the transverse butt joint piece to slide laterally along the interior of the butt joint component through the transverse guide reserved groove, driving the two groups of fitting butt pressing parts to contact each other, applying pressure to the oil inside the built-in preset oil supply channel, so that it is automatically supplied to the outside through the first fitting sealing layer. After the steps after the overall screw installation are completed, the oil supply work is adaptively performed to improve the butt joint quality, prevent internal corrosion such as rust, and increase the support service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of a half-cut three-dimensional structure of the present invention; Figure 3 For the present invention Figure 2 A schematic diagram of the partially enlarged structure; Figure 4 It is a schematic diagram of a half-cut three-dimensional structure of a butt connection component of the present invention; Figure 5 This is a schematic diagram of the three-dimensional structure of the reserved docking piece of the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure of the second laminating sealing layer of the present invention; Figure 7 This is a schematic diagram of the three-dimensional structure of the interfering transverse docking member of the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure of the laminating and butting press fitting of the present invention; Fig. 9 It is a schematic diagram of the three-dimensional structure of the built-in reserved liquid capsule component of the present invention.

[0015] In the figure: 1. docking connection component; 2. end body of the pull rod screw; 3. built-in preset oil supply channel; 4. vertical guide reserved groove; 5. reserved abutment docking piece; 6. inclined abutment docking piece; 7. transverse locking support piece; 8. external docking nesting piece; 9. built-in reserved liquid sac component; 10. external reserved through hole; 11. abutment transverse docking piece; 12. fitting docking pressing piece; 13. first fitting sealing layer; 14. second fitting sealing layer; 15. transverse guide reserved groove. DETAILED DESCRIPTION

[0016] 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.

[0017] Example 1: Please refer to Figure 1-9 The present invention provides the following technical solutions: A high-strength pull rod screw for brake, comprising a butt connection component 1, a pull rod screw end body 2, a built-in preset oil supply channel 3, a vertical guide reserved groove 4, a reserved abutment piece 5, a beveled abutment piece 6, a transverse locking support 7, an external butt nesting piece 8, a built-in reserved liquid capsule component 9, an external reserved through hole 10, a butt transverse butt piece 11, a fitting butt press piece 12, a first fitting sealing layer 13, a second fitting sealing layer 14, and a transverse guide reserved groove 15; The lower end of the butt connection component 1 is fixedly connected with a pull rod screw end body 2; A built-in preset oil supply channel 3 is provided inside the butt-joint component 1 and the end body 2 of the pull rod screw, and the upper end of the built-in preset oil supply channel 3 is bonded and butted with a second fitting sealing layer 14, a vertical guide reserved groove 4 is provided at the lower end of the outer side of the butt-joint component 1, and a resistance reserved docking piece 5 is nested and installed inside the vertical guide reserved groove 4, the resistance reserved docking piece 5 is butted with the inner side of the butt-joint component 1, and a high-strength positioning structure for auxiliary positioning is provided between the butt-joint component 1 and the resistance reserved docking piece 5; The high-strength positioning structure is provided with an inclined surface resistance docking member 6, and the inclined surface resistance docking member 6 is fixedly connected to the outside of the resistance reserved docking member 5, and the inclined surface resistance docking member 6 is arranged on the inside of the vertical guide reserved groove 4; the inside of the docking connection component 1 is transversely nested with a transverse locking support member 7, and the outer end of the transverse locking support member 7 is nested with an external docking nesting member 8. The end side of the transverse locking support member 7 is docked with a built-in reserved liquid capsule component 9, and the built-in reserved liquid capsule component 9 and the inner side of the external docking nesting member 8 are mutually docked, and the transverse locking support member 7 is provided with an external reserved through hole 10 toward the outside, and the position of the external reserved through hole 10 corresponds to that of the built-in reserved liquid capsule component 9. The resistance reserved docking member 5 is symmetrically distributed about the center point of the docking connection component 1, and the resistance reserved docking member 5 moves upward along the inner side of the vertical guide reserved groove 4 when it contacts the external force, and the ends of the resistance reserved docking member 5 and the transverse locking support member 7 are both inclined structures.

[0018] During the upward movement of the resisting reserved docking piece 5, pressure is applied to the contacting transverse locking support piece 7, pushing the transverse locking support piece 7 to move outward along the interior of the docking connection component 1; the external docking nested piece 8 on the outside of the transverse locking support piece 7 is pre-forced to move inward, thereby applying pressure to the contacting built-in reserved liquid capsule component 9, causing the built-in reserved liquid capsule component 9 to protrude outward through the external reserved through hole 10. As the docking connection component 1 and the pull rod screw end body 2 are installed along the inside of the automobile brake disc by special tools, the resisting reserved docking piece 5 at its lower end will contact the inside of the brake disc and resist inward, thereby applying pressure to the contacting transverse locking support piece 7 through its inclined surface, thereby pushing the transverse locking support piece 7 to move outward along the inside of the docking connection component 1. As the screw is installed, the transverse locking support piece 7 on its outside is subjected to secondary positioning along the inside of the screw hole, thereby effectively improving the installation strength and stability of the overall screw, and will not be affected by the installation after completion. In case of loosening and falling caused by vibration and the like, during the process of the transverse locking support 7 being pressed and moved outward for auxiliary positioning, the external docking nesting member 8 on the outside will be pre-stressed along the inside of the screw hole, thereby moving inward along the inner side of the transverse locking support 7, thereby applying pressure to the contacted built-in reserved liquid capsule component 9, so that the built-in reserved liquid capsule component 9 protrudes outward through the external reserved through hole 10 on the outside of the transverse locking support 7, thereby performing secondary filling of the gap between the contacted screw hole and the screw, thereby improving the installation friction of the overall screw, and further improving its supporting strength and stability.

[0019] Embodiment 2: Based on Embodiment 1, an oil self-lubricating supply structure is also disclosed, and its specific structure is as follows: An oil self-lubricating supply structure is provided between the butt connection component 1 and the pull rod screw end body 2.

[0020] The oil self-lubricating supply structure is provided with a resisting transverse docking piece 11, and the resisting transverse docking piece 11 is arranged on the inner side of the docking connection component 1, and a transverse guide reserved groove 15 is provided inside the docking connection component 1, and the transverse guide reserved groove 15 is nested and docked with the resisting transverse docking piece 11. The outer side of the resisting transverse docking piece 11 is fixedly connected with a fitting docking press piece 12, and the fitting docking press piece 12 is arranged inside the built-in preset oil supply channel 3, and the lower end face of the built-in preset oil supply channel 3 is connected with a first fitting sealing layer 13. In the process of the resisting reserved docking piece 5 being forced to move upward, the outer inclined resisting docking piece 6 is driven to move upward synchronously, and the inclined resisting docking piece 6 applies pressure to the contacting resisting transverse docking piece 11, so that the resisting transverse docking piece 11 forms a transverse sliding structure along the inside of the docking connection component 1 through the transverse guide reserved groove 15.

[0021] The lateral butt-jointing piece 11 and the butt-jointing pressing piece 12 are symmetrically distributed about the center point of the butt-jointing connection component 1, and the lateral butt-jointing piece 11 moves inwardly, driving the two groups of butt-jointing pressing pieces 12 to contact each other, applying pressure to the oil inside the built-in preset oil supply channel 3, so that it is automatically supplied to the outside through the first fitting sealing layer 13; the user can supply a certain amount of lubricating oil to the inside of the built-in preset oil supply channel 3 along the second fitting sealing layer 14, and in the process of the reserved butt-jointing piece 5 being forced to move upward, it will drive the outer inclined butt-jointing piece 6 to move along the butt-jointing connection. The inner side of the connecting component 1 moves upward, thereby applying pressure to the contacting transverse docking piece 11, allowing the contacting transverse docking piece 11 to slide laterally along the inside of the docking connection component 1 through the transverse guide reserved groove 15, driving the two sets of fitting docking pressing parts 12 to contact each other, and applying pressure to the oil inside the built-in preset oil supply channel 3, so that it is automatically supplied to the outside through the first fitting sealing layer 13. After the steps after the overall screw installation are completed, the oil supply work is adaptively performed to improve the docking quality, prevent rust and other corrosion inside, and increase the support service life.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-strength pull rod screw for brake application, comprising a butt connection component (1) and a pull rod screw end body (2), wherein the lower end of the butt connection component (1) is fixedly connected to the pull rod screw end body (2); Features: The butt-joint connection component (1) and the end body (2) of the tie rod screw are provided with a built-in preset oil supply channel (3), and the upper end of the built-in preset oil supply channel (3) is bonded and butted with a second bonding sealing layer (14); the lower end of the outer side of the butt-joint connection component (1) is provided with a vertical guide reserved groove (4), and the inner side of the vertical guide reserved groove (4) is nested with a resistance reserved docking piece (5), the resistance reserved docking piece (5) is butted with the inner side of the butt-joint connection component (1), and a high-strength positioning structure for auxiliary positioning is provided between the butt-joint connection component (1) and the resistance reserved docking piece (5); An oil self-lubricating supply structure is provided between the butt connection component (1) and the pull rod screw end body (2).

2. The high-strength pull rod screw for brake according to claim 1, characterized in that: The high-strength positioning structure is provided with an inclined surface abutting docking piece (6), and the inclined surface abutting docking piece (6) is fixedly connected to the outside of the abutting reserved docking piece (5), and the inclined surface abutting docking piece (6) is arranged on the inside of the vertical guide reserved groove (4); A transverse locking support member (7) is installed transversely and nested on the inner side of the butt connection component (1), and an external butt connection nesting member (8) is installed transversely and nested on the outer end of the transverse locking support member (7).

3. The high-strength pull rod screw for brake according to claim 2, characterized in that: The end side of the transverse locking support member (7) is internally butted with a built-in reserved liquid capsule assembly (9), and the built-in reserved liquid capsule assembly (9) is butted with the inner side of the external butting nesting member (8), and an external reserved through hole (10) is opened outwardly of the transverse locking support member (7), and the positions of the external reserved through hole (10) and the built-in reserved liquid capsule assembly (9) correspond to each other.

4. The high-strength pull rod screw for brake according to claim 3, characterized in that: The reserved abutting pieces (5) are symmetrically distributed about the center point of the abutting connection component (1), and the reserved abutting pieces (5) move upward along the inner side of the vertical guide reserved groove (4) when contacted by external forces, and the ends of the reserved abutting pieces (5) and the transverse locking support piece (7) are both inclined structures.

5. The high-strength pull rod screw for brake according to claim 4, characterized in that: During the upward movement of the resisting reserved docking member (5), pressure is applied to the contacting transverse locking support member (7), thereby pushing the transverse locking support member (7) to move outward along the interior of the docking connection component (1); The externally-mounted docking nesting piece (8) outside the transverse locking support piece (7) is pre-forced to move inwards, thereby applying pressure to the contacting internally-mounted reserved liquid capsule component (9), so that the internally-mounted reserved liquid capsule component (9) protrudes outwards through the externally-mounted reserved through hole (10).

6. The high-strength pull rod screw for brake according to claim 3, characterized in that: The oil self-lubricating supply structure is provided with a resisting transverse docking piece (11), and the resisting transverse docking piece (11) is arranged on the inner side of the docking connection part assembly (1), and a transverse guide reserved groove (15) is provided inside the docking connection part assembly (1), and the transverse guide reserved groove (15) and the resisting transverse docking piece (11) are nested and docked.

7. The high-strength pull rod screw for brake according to claim 6, characterized in that: The outer side of the abutting transverse butt joint piece (11) is fixedly connected with a fitting butt joint pressing piece (12), and the fitting butt joint pressing piece (12) is arranged inside the built-in preset oil supply channel (3), and the lower end surface of the built-in preset oil supply channel (3) is connected with a first fitting sealing layer (13).

8. The high-strength pull rod screw for brake according to claim 7, characterized in that: The process of the reserved abutment member (5) being forced to move upward drives the outer inclined abutment member (6) to move upward synchronously, and the inclined abutment member (6) applies pressure to the contacting transverse abutment member (11), so that the transverse abutment member (11) forms a transverse sliding structure along the interior of the abutment connection component (1) through the transverse guide reserved groove (15).

9. The high-strength pull rod screw for brake according to claim 8, characterized in that: The abutting transverse docking member (11) and the fitting docking pressing member (12) are symmetrically distributed about the center point of the docking connection component (1), and the abutting transverse docking member (11) drives the two sets of fitting docking pressing members (12) to contact each other during the inward movement, thereby applying pressure to the oil inside the built-in preset oil supply channel (3), so that the oil is automatically supplied to the outside through the first fitting sealing layer (13).

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