Inner ball head sensor connecting rod structure convenient to replace and disassemble

Abstract

The utility model provides an inner ball head sensor connecting rod structure convenient to replace and disassemble, which comprises a connecting rod, a ball seat and a ball rod, the end part of the ball rod is provided with an inner ball head, the ball seat is internally provided with a fixed cavity adaptive to the size of the inner ball head, and the fixed cavity is provided with a sealing part; a positioning groove is formed in the inner wall of the fixing cavity, and a positioning protrusion is arranged on the outer wall of the sealing part. The positioning protrusion of the sealing part is clamped into the positioning groove and fixed through a bolt on the side wall of the fixing cavity. A permanent magnet is detachably arranged at the upper end of the inner ball head, a first Hall sensor and a second Hall sensor are installed on the inner wall of the sealing part by arranging two quick release assemblies, each quick release assembly comprises a seat body, two clamping jaws are slidably arranged on the seat body, and fastening springs are arranged between the clamping jaws and the seat body; the fastening spring enables the two clamping jaws to have the movement tendency of approaching each other, and fixing holes corresponding to the clamping jaws are further formed in the inner wall of the sealing part. According to the utility model, the Hall sensor can be replaced conveniently and quickly.

Description

TECHNICAL FIELD

[0001] The utility model relates to sensor connecting rod field, concretely is a convenient replacement dismounting's inner ball head sensor connecting rod structure. BACKGROUND

[0002] Automobile chassis height detection sensor based on analog signal and digital signal has had more application, also greatly promoted the monitoring work of the car body state, provided technical support for the popularization of automobile active suspension and air suspension. However, the current suspension height detection method usually adopts the technical scheme of photoelectric sensor; the sensor main body is installed at the car body end, the up and down movement of the suspension is converted into the rotary movement of the disc groove through the control connecting rod, the change of the light break is used to detect the vehicle height, and it is converted into an electrical signal input control device. However, most of the application scenarios of chassis height sensor are in the state of automobile static, which is used for automobile chassis maintenance or maintenance. For air suspension vehicles, the connecting rod type photoelectric sensor used by the chassis height sensor has the defects of complex structure, high cost and large quality, which is not conducive to the market promotion of the product. With the gradual popularization of intelligent vehicles, low-cost, lightweight and real-time monitoring chassis height sensor has become a hot spot in the current market demand, and the existing chassis height sensor cannot meet the strong demand of the market.

[0003] With the development of science and technology, the lightweight Hall sensor can be installed in the inner ball head to sense the inclination of the vehicle connecting rod to obtain the height of the vehicle chassis. The permanent magnetization material provided on the ball head can make the Hall sensor have good precision, but the permanent magnetization material may still demagnetize under certain conditions, such as exposure to high temperature, collision with other objects, volume loss, and exposure to conflict magnetic field. Various factors may cause the permanent magnet to lose part or all of its magnetism, which will adversely affect the application. The replacement method of the sensor and the permanent magnetization material in the inner ball head in the prior art is relatively cumbersome, which is not convenient for vehicle maintenance and maintenance work. UTILITY MODEL CONTENTS

[0004] In order to overcome the deficiency that the replacement method of the sensor and the permanent magnetization material in the inner ball head in the prior art is relatively cumbersome, the utility model provides a convenient replacement dismounting's inner ball head sensor connecting rod structure.

[0005] The utility model adopts the following technical solutions.

[0006] The application discloses a detachable inner ball head sensor connecting rod structure which comprises a connecting rod, a ball seat and a ball rod, the end of the ball rod is provided with an inner ball head, the inner ball seat is provided with a fixed cavity which is suitable for the size of the inner ball head, and the fixed cavity is provided with a sealing part; a positioning groove is arranged on the inner wall of the fixed cavity, and a positioning protrusion is arranged on the outer wall of the sealing part; the positioning protrusion of the sealing part is clamped into the positioning groove, and is fixed through the bolt on the side wall of the fixed cavity.

[0007] The upper end of the inner ball head is detachably provided with a permanent magnet, a first Hall sensor and a second Hall sensor are respectively arranged on the inner wall of the sealing part through two groups of quick release assemblies, the quick release assembly comprises a seat body, two clamping jaws are slidably arranged on the seat body, a fastening spring is arranged between the clamping jaw and the seat body, the fastening spring enables the two clamping jaws to have a mutual approaching movement trend, and the inner wall of the sealing part is further provided with a fixing hole corresponding to the clamping jaw.

[0008] Preferably, the top surface of the sealing part is provided with a buffer cavity; a buffer spring is arranged in the buffer cavity; and the inner ball head abuts against the buffer spring.

[0009] Preferably, lubricating grease is arranged between the ball seat and the inner ball head; and an oil collecting groove is designed at the bottom of the ball seat.

[0010] Preferably, a supporting block is sleeved on the ball rod; a dust cover is arranged between the ball rod and the ball seat; and the lower part of the dust cover is fixed to the lower end of the ball seat through a constraint ring.

[0011] Preferably, a hollow weight-reducing groove is arranged on the connecting rod.

[0012] Preferably, the first Hall sensor and the second Hall sensor are arranged in the direction of the ball center of the inner ball head, the distance between the first Hall sensor, the second Hall sensor and the inner ball head is equal, and the connecting line of the first Hall sensor and the second Hall sensor is perpendicular to the axial line of the inner ball head.

[0013] The application has the following beneficial effects:

[0014] The utility model provides a kind of inner ball head sensor connecting rod structure of convenient replacement disassembly, including connecting rod, ball seat and ball rod, the end of ball rod is provided with inner ball head, the bottom of ball seat is provided with fixed cavity, fixed cavity is provided with sealing part;Positioning groove is arranged on the inner wall of fixed cavity, positioning convex is arranged on the outer wall of sealing part;The positioning convex of sealing part is inserted into the positioning groove, and is fixed by bolt on the side wall of fixed cavity;The upper end of inner ball head is detachably provided with permanent magnet, first hall sensor and second hall sensor are installed on the inner wall of sealing part by quick release assembly, quick release assembly includes seat body, two clamping jaws are slidably arranged on seat body, fastening spring is arranged between clamping jaw and seat body, and fastening spring makes two clamping jaws have mutual approaching movement tendency.When permanent magnet is disassembled, only need to remove bolt on fixed cavity, then remove sealing part, and inner ball head can be exposed, and permanent magnet on inner ball head is replaced;When hall sensor needs to be replaced, the unlocking and replacement of hall sensor are realized by manually moving clamping jaw. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the following will briefly introduce the drawings needed to be used in embodiment or prior art description, and obviously, other drawings can be obtained by the drawings without creative labor for the ordinary skilled in the art.

[0016] Fig. 1 It is an exploded view of one embodiment of the utility model;

[0017] Fig. 2 It is a three-dimensional structure schematic view of quick release assembly in one embodiment of the utility model;

[0018] Fig. 3 It is the sectional view of ball seat in one embodiment of the utility model.

[0019] Mark the following: 1, connecting rod; 11, weight reduction ring; 2, ball seat, 21, fixed cavity; 211, positioning groove; 22, sealing part; 221, positioning convex; 222, first hall sensor; 223, second hall sensor; 224, fixed hole; 225, buffer concave cavity; 226, buffer spring; 23, bolt; 24, oil collecting groove; 3, ball rod; 31, inner ball head; 311, permanent magnet; 32, support block; 33, dust cover; 34, constraint ring; 4, quick release assembly; 41, seat body; 42, clamping jaw; 43, fastening spring. DETAILED DESCRIPTION

[0020] The drawings are only used for example description, and cannot be understood as the limitation of the patent; in order to better illustrate the embodiment, some components of the drawings will be omitted, enlarged or reduced, and do not represent the size of actual product.

[0021] It is understandable for those skilled in the art that some well-known structures and their descriptions in the drawings can be omitted. The technical solutions of the utility model will be further described below in combination with the drawings and examples.

[0022] As shown in the accompanying Figs. 1-3 The inner ball head sensor connecting rod structure convenient to disassemble and replace comprises a connecting rod 1, a ball seat 2 and a ball rod 3, the end of the ball rod 3 is provided with an inner ball head 31, the bottom surface of the ball seat 2 is provided with a fixing cavity 21, the fixing cavity 21 is provided with a sealing part 22, the inner wall of the fixing cavity 21 is provided with a positioning groove 211, and the outer wall of the sealing part 22 is provided with a positioning protrusion 221; the positioning protrusion 221 of the sealing part 22 is clamped into the positioning groove 211, and the sealing part 22 is fixed through the bolt 23 on the side wall of the fixing cavity 21.

[0023] The upper end of the inner ball head 31 is detachably provided with a permanent magnet 311, the inner wall of the sealing part 22 is provided with a first Hall sensor 222 and a second Hall sensor 223 through a quick release assembly 4, the quick release assembly 4 comprises a seat body 41, two clamping jaws 42 are slidably arranged on the seat body 41, a fastening spring 43 is arranged between the clamping jaw 42 and the seat body 41, the fastening spring 43 makes the two clamping jaws 42 have a mutual approaching movement trend, and the inner wall of the sealing part 22 is further provided with a fixing hole 224 corresponding to the clamping jaw 42. First of all, the size of the permanent magnet and the Hall sensor is a microstructure, so it will not affect the original structure and use function of the ball head, and the permanent magnet and the Hall sensor obtain the rotation angle data through the induction of the magnetic field, so there is no mechanical connection structure, and therefore the original structure and use function of the inner ball head 31 are not affected.

[0024] When the permanent magnet 311 is disassembled and replaced, only the bolt 23 on the fixing cavity 21 needs to be disassembled, and then the sealing part 22 is removed, so that the inner ball head 31 is exposed, and the permanent magnet 311 on the inner ball head 31 is replaced; when the Hall sensor needs to be replaced, the clamping jaw 42 is manually moved to make the clamping jaw 42 separate from the fixing hole 224, at this time, the quick release assembly 4 together with the first Hall sensor 222 or the second Hall sensor 223 can be separated from the sealing part 22, and then the new quick release assembly 4 and the Hall sensor are installed on the inner wall of the sealing part 22.

[0025] In some embodiments, the top surface of the sealing part 22 is provided with a buffer recess 225; a buffer spring 226 is arranged in the buffer recess 225; and the inner ball head 31 abuts against the buffer spring 226. Through the above structure, the buffer spring 226 can automatically compensate the damping of the inner ball head 31, improve the use stability and reliability. At the same time, it also avoids the collision between the permanent magnet 311 on the inner ball head 31 and the sealing part 22 in special circumstances, so as to damage the permanent magnet 311 or the first Hall sensor 222 and the second Hall sensor 223.

[0026] In some embodiments, grease is arranged between the ball seat 2 and the inner ball head 31; the bottom of the ball seat 2 is designed with an oil collecting groove 24. The grease can improve the overall sealing performance and practicability. By designing the oil collecting groove 24, the grease at the rotating position of the inner ball head 31 is less likely to be lost.

[0027] In some embodiments, a support block 32 is arranged on the ball rod 3; a dust cover 33 is arranged between the ball rod 3 and the ball seat 2; the lower part of the dust cover 33 is fixed to the lower end of the ball seat 2 through a constraint ring 34. The dust cover 33 is mainly used to prevent dust from entering the connection between the ball rod 3 and the ball seat 2, so as to ensure the stable performance of the inner ball head 31 during long-term use. In addition, the dust cover 33 is fixed to the lower end of the ball seat 2 through the constraint ring 34, which facilitates the disassembly and maintenance operation when the dust cover 33 is aged.

[0028] In some embodiments, a hollow weight-reducing groove 11 is arranged on the connecting rod 1. The connecting rod 1 bears the functions of connection and transmission in the chassis, so it bears a large periodic alternating stress. In order to limit the inertial force of the connecting rod 1 and improve the motion performance of the connecting rod 1, the mass of the connecting rod 1 needs to be reduced as much as possible, while the requirements of stiffness and strength must be met to prevent the connecting rod 1 from breaking down during work. Therefore, the weight-reducing groove 11 is arranged to reduce the weight of the connecting rod 1 under the premise of ensuring the strength of the connecting rod 1.

[0029] In some embodiments, the first Hall sensor 222 and the second Hall sensor 223 are arranged in the direction of the ball center of the inner ball head 31, the distance between the first Hall sensor 222 and the second Hall sensor 223 and the inner ball head 31 is equal, and the connecting line of the first Hall sensor 222 and the second Hall sensor 223 is perpendicular to the axis of the inner ball head 31. The data of the first Hall sensor 222 and the second Hall sensor 223 can be used as the basis for judging the magnetic force decay of the permanent magnet 311, so that the permanent magnet 311 can be replaced in time to ensure the accuracy of the angle data.

[0030] Obviously, the above embodiments of the present application are only examples for clearly illustrating the present application, and are not intended to limit the embodiments of the present application. For ordinary skilled persons in the art, other different forms of changes or variations can be made on the basis of the above description. Here, it is not necessary and impossible to exhaust all the embodiments. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. A sensor link structure of a detachable inner ball head for easy replacement, comprising a link, a ball seat, and a ball rod, an end portion of the ball rod being provided with an inner ball head, characterized in that, The inner part of the ball seat is provided with a fixed cavity which is suitable for the size of the inner ball head, and the fixed cavity is provided with a sealing part; the inner wall of the fixed cavity is provided with a positioning groove, and the outer wall of the sealing part is provided with a positioning protrusion; the positioning protrusion of the sealing part is clamped into the positioning groove, and is fixed through the bolt on the side wall of the fixed cavity; The upper end of the inner ball head is detachably provided with a permanent magnet, and the inner wall of the sealing part is provided with a first Hall sensor and a second Hall sensor through two groups of quick release assemblies; the quick release assembly comprises a seat body, two clamping jaws are slidably arranged on the seat body, a fastening spring is arranged between the clamping jaw and the seat body, the fastening spring makes the two clamping jaws have a mutual approaching movement trend, and the inner wall of the sealing part is also provided with a fixing hole corresponding to the clamping jaw.

2. A conveniently replaceable and detachable inner ball head sensor linkage structure according to claim 1, characterized in that, The top surface of the sealing part is provided with a buffer cavity; the buffer cavity is provided with a buffer spring; the inner ball head abuts against the buffer spring.

3. A convenient replacement dismounting inner ball head sensor connecting rod structure according to claim 1, characterized in that, The ball seat and the inner ball head are provided with lubricating grease; the bottom of the ball seat is designed as an oil collecting groove.

4. A convenient replacement dismounting inner ball head sensor connecting rod structure according to claim 1, characterized in that, A supporting block is sleeved on the club; a dust cover is arranged between the club and the ball seat; the lower part of the dust cover is fixed to the lower end of the ball seat through a restraint ring.

5. A convenient replacement dismounting inner ball head sensor linkage structure according to claim 1, characterized in that, The connecting rod is provided with a hollow weight-reducing groove.

6. A convenient replacement dismounting inner ball head sensor linkage structure according to claim 1, characterized in that, The first Hall sensor and the second Hall sensor are arranged in the direction of the center of the inner ball head, the distance between the first Hall sensor and the second Hall sensor and the inner ball head is equal, and the line connecting the first Hall sensor and the second Hall sensor is perpendicular to the axis of the inner ball head.

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