CN111376835A

CN111376835A - Be applied to rear-view mirror mount of truck

Info

Publication number: CN111376835A
Application number: CN202010211398.9A
Authority: CN
Inventors: 何水龙; 许恩永; 王衍学
Original assignee: Guilin University of Electronic Technology; Beijing University of Civil Engineering and Architecture; Dongfeng Liuzhou Motor Co Ltd
Current assignee: Guilin University of Electronic Technology; Beijing University of Civil Engineering and Architecture; Dongfeng Liuzhou Motor Co Ltd
Priority date: 2020-03-24
Filing date: 2020-03-24
Publication date: 2020-07-07
Anticipated expiration: 2040-03-24
Also published as: CN111376835B

Abstract

The invention discloses a rearview mirror fixing frame applied to a truck, which comprises: the fixing bracket comprises a fixing rod and a connecting seat arranged at one end of the fixing rod; the connecting seat comprises a connecting column and first spacing bulges uniformly distributed along the circumferential direction of the connecting column, and a first spacing groove is formed between every two adjacent first spacing bulges; the positioning assembly comprises a first shell, a transverse pressing piece with one end embedded into the first shell, and a first resetting piece connected with the transverse pressing piece; the connecting seat is embedded in the first shell; the transverse pressing piece comprises a sliding rod, a driving head fixed at the outer end of the sliding rod and a limiting head fixed at the inner end of the sliding rod; the limiting head is provided with a first positioning bulge matched with the first spacing groove. The invention can conveniently adjust the angle and the orientation of the rearview mirror, and can lock the orientation and the state of the rearview mirror after adjustment, thereby maintaining the stable state of the rearview mirror and avoiding the interference of external factors.

Description

Be applied to rear-view mirror mount of truck

Technical Field

The invention relates to the field of truck production and manufacturing, in particular to a rearview mirror fixing frame applied to a truck.

Background

The rearview mirrors are tools for a driver sitting on a cab seat to directly acquire external information such as the rear, side and lower parts of the automobile. The existing truck rearview mirrors are generally fixed on two sides of a truck through C-shaped fixing rods, and due to the fact that the truck is wide and large in size, a proper visual field needs to be adjusted in advance to prevent driving safety accidents and guarantee personal safety. However, the existing truck rearview mirror has the problems of inconvenient adjustment, insufficient stability after adjustment and the like, and the rearview mirror which keeps a given angle is easy to generate angle deviation under the influence of long-term use and bumping of the vehicle body, so that the driving experience degree is influenced.

Disclosure of Invention

This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and the title of the invention of this application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.

The present invention has been made in view of the problems occurring in the prior art.

Therefore, one of the objects of the present invention is to provide a rearview mirror holder for a truck, which can solve the problems of inconvenient adjustment and insufficient stability after adjustment of the existing truck rearview mirror.

In order to solve the technical problems, the invention provides the following technical scheme: a rearview mirror mount for use with a truck, comprising: the fixing bracket comprises a fixing rod and a connecting seat arranged at one end of the fixing rod; a rearview mirror is fixed on the fixed rod, and the connecting seat is installed on the outer side surface of the truck through a positioning assembly; the connecting seat comprises a connecting column and a circle of first spacing bulges uniformly distributed along the circumferential direction of the connecting column, and a first spacing groove is formed between every two adjacent first spacing bulges; the positioning assembly comprises a first shell connected with the outer side wall of the truck, a transverse pressing piece with one end embedded in the first shell and capable of sliding relatively, and a first reset piece connected with the transverse pressing piece and capable of pressing the transverse pressing piece outwards; the connecting seat is embedded in the first shell; the first shell is internally provided with an accommodating cavity matched with the connecting seat and a sliding cavity matched with the transverse pressing piece; the transverse pressing piece comprises a sliding rod, a driving head fixed at the outer end of the sliding rod and a limiting head fixed at the inner end of the sliding rod; the limiting head is provided with a first positioning bulge matched with the first spacing groove, and the first positioning bulge can be embedded into any first spacing groove under the extrusion of the first resetting piece.

As a preferable aspect of the present invention, the rear view mirror mount for a truck, wherein: a first push rod which is parallel to the slide rod and has the same direction with the slide rod is fixed on the driving head, a first piston head is fixed on the first push rod, and a first throttling hole is formed in the first piston head; a pressure channel parallel to the sliding cavity is further arranged in the first shell, a first limiting ring is arranged in the pressure channel, and the pressure channel is divided into a first pressure chamber and a second pressure chamber by the first limiting ring; the first piston head is arranged in the first pressure chamber in a sliding mode, and the first resetting piece is arranged between the first piston head and the first limiting ring; and a magnet mutually attracted with the first limiting ring is arranged in the second pressure chamber, and the magnet can be blocked on the first one-way hole in the center of the first limiting ring under the attraction of magnetic force.

As a preferable aspect of the present invention, the rear view mirror mount for a truck, wherein: one end of the magnet, corresponding to the first one-way hole, is provided with a first spherical surface; a first vent communicated with an external space is arranged on the outer side wall of the second pressure chamber; and a circulation channel is arranged in the magnet, one end of the circulation channel is right opposite to the first one-way hole, and the other end of the circulation channel extends to the side face attached to the second pressure chamber.

As a preferable aspect of the present invention, the rear view mirror mount for a truck, wherein: an isolation column is arranged on the inner end of the connecting column, a cross groove matched with the outer diameter of the isolation column is formed in one side face, corresponding to the connecting column, of the sliding rod, and the height of the isolation column is not smaller than the depth of the cross groove.

As a preferable aspect of the present invention, the rear view mirror mount for a truck, wherein: the first shell is symmetrically arranged and can be mutually spliced in two petal types and is fixedly connected through bolts.

As a preferable aspect of the present invention, the rear view mirror mount for a truck, wherein: the device also comprises an adjusting mechanism; the adjusting mechanism is arranged at the other end of the fixed rod relative to the positioning assembly, and two ends of the fixed rod are respectively installed on the outer side wall of the truck through the positioning assembly and the adjusting mechanism; the adjusting mechanism comprises a second shell with an accommodating channel, a pressing assembly with one end inserted into the accommodating channel and the other end extending outwards, and a sleeve assembly arranged in the accommodating channel and fixedly connected with the lower end of the fixing rod; the pressing component is internally provided with a sliding channel, the outer end of the sliding channel is blocked, the inner end of the sliding channel is opened, and the sliding channel can only linearly slide in the length direction of the second shell; a circle of second spacing bulges are uniformly distributed in the pressing component along the circumferential direction of the pressing component, and second spacing grooves are formed between the adjacent second spacing bulges; one end of the sleeve assembly is inserted into the sliding channel of the pressing assembly, and a second positioning protrusion matched with the second spacing protrusion is arranged on the outer side wall of the sleeve assembly; when the second positioning protrusion is inserted into the second spacing groove, the first positioning protrusion can be inserted into the first spacing groove at the same time.

As a preferable aspect of the present invention, the rear view mirror mount for a truck, wherein: the pressing assembly comprises a driving pipe, a second push rod and a second piston head, the driving pipe is internally provided with a sliding channel, the second push rod is fixed in the driving pipe, the second piston head is fixed at the lower end of the second push rod, and the second piston head is provided with a second through orifice; the sleeve assembly comprises an upper pipe section inserted into the driving pipe, a lower pipe section fixed at the lower end of the fixing rod and a middle pipe section connected between the upper pipe section and the lower pipe section; the upper pipe section, the middle pipe section and the lower pipe section cannot rotate circumferentially relative to each other; a second reset piece is arranged between the top of the driving tube and the top of the upper tube section; the second positioning bulge is fixed on the outer side wall of the upper pipe section, and the second piston head is positioned inside the upper pipe section and can slide relatively in the upper pipe section; the upper end of the middle pipe section is provided with a second limiting ring positioned right below a second piston head, a plugging piece is arranged inside the middle pipe section, and the plugging piece is plugged on a second one-way hole in the center of the second limiting ring under the extrusion of an elastic piece; a step surface for limiting the elastic part is formed at the upper end of the lower pipe section, and the lower pipe section is rotatably arranged at the bottom of the second shell; the outer side wall of the lower pipe section is provided with a circle of annular fixing groove, the bottom of the accommodating channel forms a penetrating opening matched with the outer diameter of the lower pipe section, and the inner side wall of the penetrating opening is provided with an annular bulge matched with the annular fixing groove; the outer diameter of the plugging piece is matched with the inner side wall of the middle pipe section, a vertical through gap is formed in the periphery of the plugging piece, and the vertical gap and the inner side wall of the middle pipe section are clamped together to form a gas transmission channel.

As a preferable aspect of the present invention, the rear view mirror mount for a truck, wherein: the outer side wall of the driving pipe is provided with a guide strip extending along the length direction of the driving pipe, the inner side wall of the accommodating channel is provided with a guide groove matched with the guide strip, the driving pipe penetrates through the upper port of the accommodating channel, and the guide strip is inserted into the guide groove; the driving pipe can slide along the direction of the guide strip.

As a preferable aspect of the present invention, the rear view mirror mount for a truck, wherein: the outer side wall of the upper pipe section is mutually attached to the inner side wall of the second shell, an interlayer space is formed between the middle pipe section and the inner side wall of the second shell, a second ventilation opening is formed in the side wall of the middle pipe section, and the interior of the middle pipe section is communicated with the interlayer space through the second ventilation opening; an air outlet channel extending to the interlayer space is arranged in the side wall of the second shell, and the interlayer space is communicated with the external space through the air outlet channel.

As a preferable aspect of the present invention, the rear view mirror mount for a truck, wherein: the top of the upper pipe section is provided with a top plate, a through hole corresponding to the second push rod is formed in the center of the top plate, a third one-way hole is further formed in the top plate, a blocking piece capable of covering or opening the third one-way hole is arranged on the inner side of the third one-way hole, and the blocking piece is fixedly connected with the edge of the inner side of the third one-way hole through any position of the edge of the blocking piece.

The invention has the beneficial effects that: the invention can conveniently adjust the angle and the orientation of the rearview mirror, and can lock the orientation and the state of the rearview mirror after adjustment, thereby maintaining the stable state of the rearview mirror and avoiding the interference of external factors.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:

fig. 1 is an overall configuration view of an adjustable rearview mirror.

Fig. 2 is an exploded view of the adjustable rearview mirror.

Fig. 3 is an exploded view of the positioning assembly.

Fig. 4 is an exploded view of the adjustment mechanism.

Fig. 5 is a cross-sectional view of the adjustable rearview mirror.

Fig. 6 is a cross-sectional view of the positioning assembly.

Fig. 7 is a cross-sectional view of the adjustment mechanism.

FIG. 8 is a schematic view of the internal gas flow during operation of the regulating mechanism.

Fig. 9 is an internal structure view of the driving pipe.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

Furthermore, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

Referring to fig. 1 to 9, an embodiment of the present invention provides a rearview mirror holder for a truck, which includes a fixing bracket 100 for fixing a rearview mirror and a positioning assembly 200 capable of adjusting an angle of the fixing bracket 100 and the rearview mirror.

The fixing bracket 100 includes a fixing rod 101 and a connection seat 102 provided on one end of the fixing rod 101. The fixing rod 101 is preferably a C-shaped one-piece steel pipe bracket to which the rear view mirror is fixed, and the connecting socket 102 is mounted on the outer side of the truck through a positioning assembly 200. The connecting seat 102 comprises a connecting column 102a extending into the positioning assembly 200 and a circle of first spacing protrusions 102b uniformly distributed along the circumference of the connecting column 102a, the first spacing protrusions 102b are of a protrusion structure arranged at intervals, and a first spacing groove G-1 is formed between every two adjacent first spacing protrusions 102 b.

The positioning assembly 200 includes a first housing 201 fixed to an outer sidewall of the truck, a lateral pressing member 202 having one end embedded in the first housing 201 and capable of sliding relatively, and a first returning member 203 connected to the lateral pressing member 202 and capable of pressing the same outwardly, the first returning member 203 preferably being a compression spring.

The connecting seat 102 is embedded in the first housing 201, and the inner end of the lateral pressing member 202 also extends into the first housing 201, so that the first housing 201 has an accommodating cavity 201a matched with the connecting seat 102 and a sliding cavity 201b matched with the lateral pressing member 202, so as to ensure that the connecting seat 102 can rotate in the accommodating cavity 201a, and the lateral pressing member 202 can slide linearly in the sliding cavity 201 b.

The lateral press 202 includes a linearly extending slide bar 202a, a drive head 202b fixed to an outer end of the slide bar 202a, and a stop head 202c fixed to an inner end of the slide bar 202 a. The slide bar 202a is located below the connecting column 102a and crosses over the connecting column 102a, and the limiting head 202c located at the end of the slide bar 202a is bent upwards and faces the outer side wall of the connecting column 102 a. The limiting head 202c is a block-shaped structure, and is provided with a first positioning protrusion 202d matched with the first spacing groove G-1, and the first positioning protrusion 202d is a strip-shaped protrusion integrally formed on the limiting head 202c and can be embedded into any first spacing groove G-1 under the extrusion of the first resetting piece 203.

Preferably, the axial direction of the connecting column 102a is perpendicular to the length direction of the sliding rod 202 a.

In the initial state, due to the extrusion of the first reset piece 203, the driving head 202b is exposed outside the first housing 201, and the first positioning protrusion 202d is embedded in a certain first spacing groove G-1, so that the constrained connecting seat 102 cannot rotate relatively, that is, the fixed bracket 100 and the rearview mirror cannot be rotationally adjusted. When the exposed driving head 202b is pressed, the sliding rod 202a slides in the sliding cavity 201b and drives the first positioning protrusion 202d on the limiting head 202c to disengage from the first spacing groove G-1, at this time, the restriction is released, and the connecting seat 102 can rotate relatively, that is, the fixing bracket 100 and the rearview mirror can be rotated and adjusted at this time. After the rotation is adjusted to a proper angle, the driving head 202b is released, and then the first positioning protrusion 202d can be inserted into the nearest first spacing groove G-1 again under the reset action of the first reset piece 203, so that the adjusted structure is stable.

Preferably, the outer side surfaces of the first spacing protrusion 102b and the first positioning protrusion 202d are cylindrical surfaces, so that even if the first spacing protrusion 102b and the first spacing groove G-1 after rotation adjustment cannot be completely aligned, the first positioning protrusion 202d can slide into the nearest first spacing groove G-1 by means of the cylindrical surface under the pressure of the first restoring member 203 to form mutual engagement therebetween.

Based on the above, the angle and the orientation of the fixed bracket and the rearview mirror thereof can be conveniently adjusted, and the orientation and the state of the fixed bracket can be locked after adjustment, so that the stable state of the fixed bracket and the rearview mirror thereof is maintained and is not interfered by external factors.

Furthermore, a first push rod 202e parallel to and facing the slide bar 202a is fixed on the driving head 202b, a first piston head 202f is fixed on the first push rod 202e, and a first throttle hole 202f-1 penetrating along the axial direction of the first piston head 202f is arranged on the first piston head 202f and can be communicated with the two end spaces of the first piston head 202 f. The inner diameter of the first throttle hole 202f-1 may be set small to ensure that only a small amount of gas passage can be operated.

Meanwhile, a pressure channel parallel to the sliding cavity 201b is further arranged in the first housing 201, the pressure channel is a channel with a circular cross section, an iron first limiting ring 201c is arranged in the pressure channel, and the pressure channel is divided into a first pressure chamber 201d and a second pressure chamber 201e by the first limiting ring 201 c. The first piston head 202f is slidably disposed in the first pressure chamber 201d, and the first restoring member 203 is disposed between the first piston head 202f and the first retainer ring 201 c; a magnet 204 mutually attracted with the first limit ring 201c is arranged in the second pressure chamber 201e, and the magnet 204 can be close to the first limit ring 201c under the attraction of magnetic force and is blocked on the first one-way hole 201c-1 at the center of the first limit ring 201 c.

One end of the magnet 204 corresponding to the first one-way hole 201c-1 is provided as a first spherical surface 204 a. In addition, a first vent 201e-1 communicating with an external space is provided on an outer side wall of the second pressure chamber 201 e; a flow channel 204b is arranged inside the magnet 204, one end of the flow channel 204b is opposite to the first one-way hole 201c-1, and the other end extends to the side surface attached to the second pressure chamber 201 e. When the magnet 204 slides to the innermost end in the second pressure chamber 201e, the side port of the flow channel 204b can be just opposite to and communicate with the first vent 201 e-1.

The positioning assembly 200 of the present invention enables the lateral pressing member 202 to be slowly reset after being pressed down, and does not immediately form a lock within a period of time, so as to give sufficient time for the rotational adjustment of the fixing bracket 100; after the adjustment is completed, the transverse pressing piece 202 can be automatically reset completely, a rotation locking state is formed, and the convenience of adjustment is improved. The specific realization principle is as follows:

the present invention defines the space between the first piston head 202f and the first retainer ring 201c as the first pressure chamber Y-1.

When the transverse pressing piece 202 is pressed, the transverse pressing piece 202 sliding inwards can drive the first piston head 202f to slide inwards through the first push rod 202e, air in the first pressure cavity Y-1 is rapidly compressed, air pressure is increased, the magnet 204 blocked on the first one-way hole 201c-1 is pushed open by the air pressure, and air in the first pressure cavity Y-1 can enter the second pressure cavity 201e and push the magnet 204 to slide backwards in the second pressure cavity 201 e. Since the flow channel 204b is not aligned with the first ventilation opening 201e-1 at the beginning, the side port of the flow channel 204b is blocked, the magnet 204 can slide backward continuously, and when it slides to the point where the side port of the flow channel 204b is aligned with the first ventilation opening 201e-1, the gas in the second pressure chamber 201e can be discharged to the external space through the flow channel 204b and the first ventilation opening 201 e-1; therefore, the pressing process of the transverse pressing piece 202 is ensured to be relatively easy and rapid. After the lateral pressing member 202 is pressed down, the fixing bracket 100 can be rotatably adjusted.

After the transverse pressing piece 202 is released, the first piston head 202f gradually slides outwards under the action of the first resetting piece 203, the air pressure in the first pressure chamber Y-1 is reduced in the outward sliding process of the first piston head 202f, at this time, the magnet 204 can be tightly blocked on the first one-way hole 201c-1, and the air at the outer end of the first piston head 202f can only slowly permeate into the first pressure chamber Y-1 through the second throttling hole 403a with a smaller caliber, so that the resetting stroke of the second piston head 403 is slower, and the sufficient rearview mirror adjusting time is ensured. When the lateral pressing member 202 slides outward until the first positioning protrusion 202d contacts the nearest first spacing protrusion 102b, the first positioning protrusion 202d can slide into the nearest first spacing groove G-1, and the original rotation locking state is restored, thereby ensuring the stability of the fixing bracket 100 and the rearview mirror.

Further, an isolation pillar 102c is disposed on the inner end of the connection pillar 102a, and the isolation pillar 102c is a short pillar structure and is located at the center of the inner end of the connection pillar 102 a. One side of the sliding rod 202a corresponding to the connecting column 102a is provided with a cross-shaped groove 202a-1 matched with the outer diameter of the isolation column 102c, and the height of the isolation column 102c is not less than the depth of the cross-shaped groove 202a-1, so that: during the rotation of the connecting seat 102, the sliding rod 202a does not affect the rotation stroke thereof due to the engagement with the first spacing protrusion 102 b. The sub-groove of the cross-shaped groove 202a-1 along the length direction of the slide bar 202a is used for adapting to the self sliding stroke of the slide bar 202 a; the partial groove of the cross-shaped groove 202a-1 in the width direction of the slide bar 202a is adapted to facilitate the assembly of the two in the first housing 201.

Further, first shell 201 is the symmetry setting and can two lamella formulas of mutual concatenation to it is fixed to connect through the bolt.

The assembly steps of the positioning assembly 200 are:

firstly, taking one flap of the first shell 201, and embedding the connecting seat 102 into the accommodating cavity 201 a;

secondly, the first resetting piece 203 is placed in the first pressure chamber 201d, and the magnet 204 is placed in the second pressure chamber 201 e;

thirdly, the transverse pressing piece 202 is placed in the first shell 201, so that the sliding rod 202a is embedded into the sliding cavity 201b, the first piston head 202f is embedded into the first pressure chamber 201d, and the first resetting piece 203 is pressed on the inner end surface of the first piston head 202 f;

fourthly, covering the other first shell 201, pressing the two shells tightly, and then fixedly connecting the two shells through a bolt L to form a whole;

fifthly, the first shell 201 is fixed on the vehicle body by using bolts L, and the first shell 201 is provided with a mounting plate for bolt fixing.

Further, in order to improve the structural safety of the fixing bracket 100 and prevent the fixing bracket from being touched by mistake, an adjusting mechanism may be provided at the other end of the fixing rod 101. The adjusting mechanism is arranged at the other end of the fixing rod 101 relative to the positioning assembly 200, and two ends of the fixing rod 101 are respectively installed on the outer side wall of the truck through the positioning assembly 200 and the adjusting mechanism.

The adjusting mechanism includes a second housing 300 having an accommodating channel N therein, a pressing assembly 400 having one end inserted into the accommodating channel N and the other end extending out of the accommodating channel N, and a sleeve assembly 500 disposed in the accommodating channel N and fixedly connected to the lower end of the fixing rod 101.

The pressing member 400 has a sliding channel inside, the outer end (upper end) of which is closed and the inner end (lower end) of which is open, and the pressing member 400 can only slide linearly in the length direction thereof in the second housing 300. A circle of second interval bulges T-1 are uniformly distributed in the pressing assembly 400 along the circumferential direction of the pressing assembly, the second interval bulges T-1 are of bulge structures arranged at intervals, and second interval grooves G-2 are formed between every two adjacent second interval bulges T-1. One end of the sleeve assembly 500 is inserted into the sliding channel of the pressing assembly 400, and a second positioning protrusion T-2 fitted to the second spacing protrusion T-1 is provided on an outer sidewall thereof.

When the second positioning protrusions T-2 are defined in the second spacing grooves G-2 between the adjacent second spacing protrusions T-1, the sleeve assembly 500 cannot be rotated with respect to the push assembly 400 (conversely, when the second positioning protrusions T-2 are disengaged from the second spacing protrusions T-1 and are completely misaligned, the sleeve assembly 500 can be rotated with respect to the push assembly 400); and since the pressing assembly 400 itself cannot rotate (the pressing assembly 400 can only slide linearly with respect to the second housing 300 and the sleeve assembly 500 to control whether the second spacing protrusion T-1 and the second positioning protrusion T-2 are completely dislocated), pressing the pressing assembly 400 of the present invention can control whether the sleeve assembly 500 and the fixing bracket 100 fixed thereto can rotate, and then control whether the rearview mirror 200 can rotate to adjust the angle.

Therefore, the adjusting mechanism and the positioning assembly 200 of the present invention can synchronously unlock or lock the rotation adjustment of the fixing bracket 100. It can prevent the mistake from touching, and when touching drive head 202b or pressing subassembly 400 because the hand mistake, fixed bolster 100 all can not take place the activity rotatory, only when pressing both simultaneously, the both ends of fixed bolster 100 just can contact the restraint simultaneously to carry out rotation regulation. It should be noted that: the number and distribution mode of the second spacing protrusions T-1 are the same as those of the first spacing protrusions 102b, and preferably, the specifications of the second spacing protrusions T-1 and the first spacing protrusions 102b are the same and uniform; when the second positioning projection T-2 is fitted into the second spacing groove G-2, the first positioning projection 202d can also be fitted into the first spacing groove G-1 at the same time.

Further, the pressing assembly 400 of the present invention includes a driving tube 401 having a sliding passage therein, a second push rod 402 fixed inside the driving tube 401, and a second piston head 403 fixed to a lower end of the second push rod 402. The extending direction of the second push rod 402 is the length direction of the driving tube 401, the second piston head 403 is provided with a second orifice 403a which is through from top to bottom, the upper space and the lower space of the second piston head 403 can be communicated, and the inner diameter of the second orifice 403a can be set to be small, which ensures that only a small amount of air can pass through.

The sleeve assembly 500 is configured to be sequentially connected and assembled into a three-section type, that is, it includes an upper pipe section 501 inserted into the driving pipe 401, a lower pipe section 503 fixed to the lower end of the fixing rod 101, and a middle pipe section 502 connected between the upper pipe section 501 and the lower pipe section 503. The upper pipe section 501, the middle pipe section 502 and the lower pipe section 503 are connected end to end and cannot rotate circumferentially relative to each other. In addition, a second reset piece 404 is further arranged between the top of the driving pipe 401 and the top of the upper pipe section 501, the second reset piece 404 is a compression spring, is sleeved on the periphery of the second push rod 402, and can have an upward reset effect on the driving pipe 401 which is pressed down.

The second positioning protrusion T-2 is fixed on the outer sidewall of the upper pipe section 501, and the second piston head 403 is located inside the upper pipe section 501 and can slide relatively in the upper pipe section 501.

The upper end of the middle pipe section 502 is provided with a second limit ring 502a located right below the second piston head 403, the inside of the middle pipe section 502 is provided with a blocking piece 504, and the blocking piece 504 is blocked on a second one-way hole 502a-1 at the center of the second limit ring 502a under the extrusion of the elastic piece 505. The second stop collar 502a is preferably an annular structure integrally formed at the upper end of the middle tube section 502, and has an inner diameter smaller than the outer diameter of the second piston head 403 and smaller than the inner diameter of the blocking piece 504; the blocking member 504 is a block-shaped structure capable of sliding in the middle pipe section 502, and a side surface thereof corresponding to the second one-way hole 502a-1 is provided with a second spherical surface 504 b. The elastic member 505 employs a compression spring.

The invention sets the following steps: when the driving tube 401 is pressed downwards until the second piston head 403 contacts the second limit ring 502a, the second spacing protrusion T-1 and the second positioning protrusion T-2 are completely dislocated, the second positioning protrusion T-2 no longer performs a rotation restriction function on the second spacing protrusion T-1, and at this time, the sleeve assembly 500 and the whole fixing bracket 100 can be rotated to adjust the rearview mirror 200; when the driving tube 401 is reset upward by the second resetting member 404 until the second piston head 403 contacts the top of the driving tube 401, the second spacing protrusion T-1 and the second positioning protrusion T-2 are inserted into each other and have an intersection, and at this time, the second positioning protrusion T-2 has a rotation restriction effect on the second spacing protrusion T-1, and the sleeve assembly 500 and the fixing bracket 100 as a whole cannot rotate.

It should be noted that: in order to avoid the situation that the second positioning protrusion T-2 and the second spacing groove G-2 of the second spacing protrusion T-1 cannot be completely aligned after the sleeve assembly 500 is rotated and adjusted, so that the blockage caused by the resetting occurs, the present invention may set that: the ends of the second positioning bulge T-2 and the second spacing bulge T-1 are both provided with smooth spherical surfaces, so that even if the second spacing grooves G-2 of the second positioning bulge T-2 and the second spacing bulge T-1 after rotation adjustment cannot be completely opposite, the second positioning bulge T-2 can slide into the nearest second spacing groove G-2 by means of the spherical surfaces to form mutual embedding of the second positioning bulge T-2 and the second spacing groove G-2.

The upper end of the lower pipe section 503 is provided with a step surface 503a for limiting the elastic member 505, and the inner diameter of the step surface 503a is smaller than the inner diameter of the middle pipe section 502 and smaller than the inner ring inner diameter of the elastic member 505, so that the supporting effect on the elastic member 505 can be realized. The lower pipe segment 503 passes through the bottom of the receiving channel N and is rotatably disposed at the bottom of the second housing 300. For example: the outer side wall of the lower pipe section 503 is provided with a ring-shaped fixing groove 503b, the bottom of the accommodating channel N forms a through opening matched with the outer diameter of the lower pipe section 503, the inner side wall of the through opening is provided with a ring-shaped bulge 301 matched with the ring-shaped fixing groove 503b, and the ring-shaped bulge 301 is clamped in the ring-shaped fixing groove 503b and can rotate relatively.

Further, a guide strip 401a extending along the length direction of the driving tube 401 is arranged on the outer side wall of the driving tube 401, a guide groove 302 matched with the guide strip 401a is arranged on the inner side wall of the accommodating channel N, the driving tube 401 penetrates through the upper port of the accommodating channel N, and the guide strip 401a is inserted into the guide groove 302; the drive tube 401 is slidable in the direction of the guide bar 401a to ensure that only linear sliding of the pressing assembly 400 in the second housing 300 along its length can occur.

Further, the outer side wall of the upper pipe section 501 and the inner side wall of the second housing 300 are mutually attached, an interlayer space M is formed between the inner side walls of the middle pipe section 502 and the second housing 300, a plurality of second ventilation openings 502b are formed in the side wall of the middle pipe section 502, and the second ventilation openings 502b enable the interior of the middle pipe section 502 to be communicated with the interlayer space M. In addition, an air outlet channel 303 extending to the interlayer space M is provided inside the sidewall of the second housing 300, and the interlayer space M is communicated with an external space through the air outlet channel 303.

The combined structure of the pressing assembly 400 and the sleeve assembly 500 can enable the driving pipe 401 to be reset slowly after being pressed down, and cannot form locking immediately within a period of time, so that sufficient time is provided for the rotation adjustment of the sleeve assembly 500, and after the adjustment is completed, the pressing assembly 400 can also be reset completely automatically, a rotation locking state is formed, and the adjustment convenience is improved. The specific realization principle is as follows:

as shown in FIG. 8, the present invention defines the space between the second piston head 403 and the second stop collar 502a as a second pressure chamber Y-2.

When the driving tube 401 is pressed down, the driving tube 401 moving downwards can drive the second piston head 403 to slide downwards through the second push rod 402, air in the second pressure cavity Y-2 can be compressed quickly, air pressure is increased, the plugging piece 504 plugged on the second one-way hole 502a-1 can be pushed open by the air pressure, and then air in the second pressure cavity Y-2 can enter the interior of the middle tube section 502 and is discharged to the external space through the second vent 502b, the interlayer space M and the air outlet channel 303 in sequence, so that the pressing process of the driving tube 401 can be guaranteed to be relatively easy and quick. At the same time, the external air is also introduced into the upper space of the second piston head 403 from the top of the upper pipe section 501 through the air outlet channel 303, the plurality of gaps between the second spacing protrusions T-1 and the second positioning protrusions T-2 in sequence. After the drive tube 401 is depressed, the cannula assembly 500 can be rotationally adjusted.

After the driving tube 401 is released, the driving tube 401 is gradually lifted under the action of the second resetting member 404, the air pressure in the second pressure chamber Y-2 is reduced by the lifting process of the second piston head 403, at this time, the blocking member 504 can be tightly blocked on the second one-way hole 502a-1, and the air above the second piston head 403 can only slowly permeate into the second pressure chamber Y-2 through the second throttle hole 403a with a smaller caliber, so that the lifting stroke of the second piston head 403 is relatively slow, and sufficient rearview mirror adjustment time is ensured. When the driving pipe 401 rises until the spherical surface of the upper end of the second spacing projection T-1 contacts the lower end of the nearest second positioning projection T-2, the second positioning projection T-2 can slide into the nearest second spacing groove G-2 to form the original rotation locking state again, thereby ensuring the stability of the fixing bracket 100 and the rearview mirror 200.

In another embodiment, the receiving channel N inside the second housing 300 is matched with the structure of the pressing assembly 400 and the sleeve assembly 500, and the pressing assembly 400 and the sleeve assembly 500 are tightly attached to the inner sidewall of the receiving channel N, so that during the process of pressing down the driving tube 401, the gas in the second pressure chamber Y-2 can push the unsealing block 504 to directly enter the hollow tube of the fixing bracket 100 through the middle tube section 502 and the lower tube section 503. Preferably, the fixing bracket 100 is a C-shaped hollow steel pipe, and an exhaust port may be provided on an outer side wall thereof. Meanwhile, in this embodiment, a perforation or a channel needs to be provided on the driving tube 401 or directly through the gap space between the driving tube 401 and the second housing 300, so that the external air can be introduced into the upper space of the second piston head 403 via the perforation or the channel or directly through the gap space between the driving tube 401 and the second housing 300 to balance the air pressure difference on both sides of the second piston head 403, so that the pressing process is not laborious.

Further, a top plate 501a is arranged at the top of the upper pipe section 501, a through hole 501a-1 corresponding to the second push rod 402 is arranged at the center of the top plate 501a, a third one-way hole 501a-2 is further arranged on the top plate 501a, a blocking piece 501b capable of covering or opening the third one-way hole 501a-2 is arranged on the inner side of the third one-way hole 501a-2, the blocking piece 501b is preferably made of a flexible material with certain elasticity, such as a rubber sheet, and the blocking piece 501b is fixedly connected with the edge of the inner side of the third one-way hole 501a-2 through any position of the edge.

When the drive tube 401 is pressed, external gas can blow the flap 501b into the space in the drive tube 401 above the second piston head 403.

After the driving tube 401 is released, the space between the top plate 501a and the second piston head 403 is compressed, the air pressure is increased, the baffle plate 501b tightly covers the third one-way hole 501a-2, and external air cannot enter the space between the top plate 501a and the second piston head 403, so that the air flows only in a mode that the sealed space above the second piston head 403 gradually penetrates into the second pressure chamber Y-2 through the second throttle hole 403a, and therefore, the arrangement of the baffle plate 501b can optimize the reset stroke of the driving tube 401 and provide sufficient reset time and rearview mirror adjustment time.

Further, the plugging piece 504 is a short column structure, the outer diameter of the plugging piece is matched with the inner side wall of the middle pipe section 502, a vertical notch 504a which is through up and down is arranged on the periphery of the plugging piece 504, and the vertical notch 504a and the inner side wall of the middle pipe section 502 are clamped and clamped together to form a gas transmission channel. When the air in the second pressure chamber Y-2 pushes the plugging member 504 open, the air can enter the lower space of the plugging member 504 through each air transmission channel, and finally is discharged to the external space through the second ventilation opening 502b, the interlayer space M and the air outlet channel 303 in sequence.

Furthermore, the upper pipe section 501, the middle pipe section 502 and the lower pipe section 503 of the present invention are connected by screw threads, which is convenient for assembling actual products. The method specifically comprises the following steps: the lower end of the upper pipe section 501 is connected with the upper end of the middle pipe section 502 by screw threads; the lower end of the middle pipe section 502 is connected with the upper end of the lower pipe section 503 by screw threads; the lower pipe section 503 is integrally formed at the lower end of the fixing rod 101. It should be noted that: when two adjacent pipe sections are connected by threads, the torsional strength of the threads needs to be ensured to be strong or the threads need to be fixed by spot welding after torsional assembly, so that the threaded connection between the adjacent pipe sections cannot be loosened in the rotation adjusting process of the sleeve assembly 500.

The lower end of the second push rod 402 is provided with a threaded section 402a, the second piston head 403 is provided with a threaded hole 403b matched with the threaded section 402a, and the second piston head 403 is connected to the lower end of the second push rod 402 through the matching of the threaded hole 403b and the threaded section 402 a.

Further, the second housing 300 includes a mounting base 304 and an outer cover 305 which are fixedly connected to each other, and the inner structures of the two are the same and symmetrical; when the mounting base 304 and the outer cover 305 are spliced and fixed, the inner structures of the mounting base 304 and the outer cover 305 form a receiving channel N inside the second housing 300. Preferably, the mounting base 304 and the outer cover 305 of the present invention are assembled and fixed to the outer side wall of the truck by bolts L penetrating through the two, and the bolts L are preferably distributed at the edge of the second housing 300. The mounting base 304 and the outer cover 305 have through holes for fitting the bolts L, and the through holes of the mounting base and the outer cover can be opposed to each other.

Since the adjusting mechanism of the present invention is provided in an assembled type, it is possible to produce independent parts each, and a final product can be formed by simple assembly. The assembly process of the adjusting mechanism is as follows:

firstly, a second resetting piece 404 is sleeved on the second push rod 402;

secondly, the upper pipe section 501 is inserted into the sliding channel of the driving pipe 401;

thirdly, a second piston head 403 is rotatably fixed on the thread section 402a at the end of the second push rod 402;

fourthly, connecting the middle pipe section 502 to the lower end of the upper pipe section 501;

fifthly, sequentially filling the plugging piece 504 and the elastic piece 505 into the middle pipe section 502;

sixthly, connecting the lower pipe section 503 to the lower end of the middle pipe section 502;

seventhly, wrapping and enclosing the installation seat 304 and the outer cover 305 on the periphery of the assembly body formed in the previous step, and enabling the guide strip 401a to be embedded into the guide groove 302 and the annular protrusion 301 to be embedded into the annular fixing groove 503 b;

and eighthly, the second shell 300 is held tightly, and a transverse bolt L is penetrated through and fixed on the truck through the bolt.

It is important to note that the construction and arrangement of the present application as shown in the various exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperatures, pressures, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter recited in this application. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of this invention. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present inventions. Therefore, the present invention is not limited to a particular embodiment, but extends to various modifications that nevertheless fall within the scope of the appended claims.

Moreover, in an effort to provide a concise description of the exemplary embodiments, all features of an actual implementation may not be described (i.e., those unrelated to the presently contemplated best mode of carrying out the invention, or those unrelated to enabling the invention).

It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure, without undue experimentation.

It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.

Claims

1. The utility model provides a be applied to rear-view mirror mount of truck which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,

a fixing bracket (100) including a fixing rod (101) and a connecting seat (102) provided on one end of the fixing rod (101); a rearview mirror is fixed on the fixed rod (101), and the connecting seat (102) is installed on the outer side surface of the truck through a positioning assembly (200); the connecting seat (102) comprises a connecting column (102a) and a circle of first spacing bulges (102b) uniformly distributed along the circumferential direction of the connecting column (102a), and first spacing grooves (G-1) are formed between every two adjacent first spacing bulges (102 b); and the number of the first and second groups,

the positioning assembly (200) comprises a first shell (201) connected with the outer side wall of the truck, a transverse pressing piece (202) with one end embedded in the first shell (201) and capable of sliding relatively, and a first resetting piece (203) connected with the transverse pressing piece (202) and capable of pressing the transverse pressing piece outwards;

the connecting seat (102) is embedded in the first shell (201); the first shell (201) is internally provided with a containing cavity (201a) matched with the connecting seat (102) and a sliding cavity (201b) matched with the transverse pressing piece (202); the transverse pressing piece (202) comprises a sliding rod (202a), a driving head (202b) fixed at the outer end of the sliding rod (202a), and a limiting head (202c) fixed at the inner end of the sliding rod (202 a); the limiting head (202c) is provided with a first positioning bulge (202d) matched with the first spacing groove (G-1) and can be embedded into any first spacing groove (G-1) under the extrusion of the first resetting piece (203).

2. A rearview mirror mount for a truck as claimed in claim 1, wherein: a first push rod (202e) which is parallel to the sliding rod (202a) and faces the same direction is further fixed on the driving head (202b), a first piston head (202f) is fixed on the first push rod (202e), and a first throttling hole (202f-1) is formed in the first piston head (202 f);

a pressure channel parallel to the sliding cavity (201b) is further arranged in the first shell (201), a first limiting ring (201c) is arranged in the pressure channel, and the pressure channel is divided into a first pressure chamber (201d) and a second pressure chamber (201e) by the first limiting ring (201 c); the first piston head (202f) is arranged in the first pressure chamber (201d) in a sliding mode, and the first resetting piece (203) is arranged between the first piston head (202f) and the first limiting ring (201 c); a magnet (204) mutually attracted with the first limit ring (201c) is arranged in the second pressure chamber (201e), and the magnet (204) can be blocked on the first one-way hole (201c-1) at the center of the first limit ring (201c) under the attraction of magnetic force.

3. A rearview mirror mount for a truck as claimed in claim 2, wherein: one end of the magnet (204) corresponding to the first one-way hole (201c-1) is provided with a first spherical surface (204 a);

a first ventilation opening (201e-1) communicated with the external space is arranged on the outer side wall of the second pressure chamber (201 e); a flow channel (204b) is arranged in the magnet (204), one end of the flow channel (204b) is over against the first one-way hole (201c-1), and the other end of the flow channel (204b) extends to the side face attached to the second pressure chamber (201 e).

4. A mirror holder for a truck according to any of claims 1 to 3, wherein: an isolation column (102c) is arranged on the inner end of the connecting column (102a), a cross groove (202a-1) matched with the outer diameter of the isolation column (102c) is arranged on one side surface of the sliding rod (202a) corresponding to the connecting column (102a), and the height of the isolation column (102c) is not less than the depth of the cross groove (202 a-1).

5. A rearview mirror mount for a truck as claimed in claim 4, wherein: first shell (201) are the symmetry and set up and can splice two lamella formulas each other to it is fixed to connect through the bolt.

6. A rearview mirror mount for a truck as claimed in any one of claims 1 to 3 or 5, wherein: the device also comprises an adjusting mechanism; the adjusting mechanism is arranged at the other end of the fixed rod (101) relative to the positioning assembly (200), and two ends of the fixed rod (101) are respectively installed on the outer side wall of the truck through the positioning assembly (200) and the adjusting mechanism;

the adjusting mechanism comprises a second shell (300) with an accommodating channel (N), a pressing assembly (400) with one end inserted into the accommodating channel (N) and the other end extending outwards, and a sleeve assembly (500) arranged in the accommodating channel (N) and fixedly connected with the lower end of the fixing rod (101);

the pressing component (400) is internally provided with a sliding channel, the outer end of the sliding channel is blocked, the inner end of the sliding channel is opened, and the sliding channel can only linearly slide along the length direction of the second shell (300); a circle of second spacing bulges (T-1) are uniformly distributed in the pressing assembly (400) along the circumferential direction of the pressing assembly, and second spacing grooves (G-2) are formed between every two adjacent second spacing bulges (T-1); one end of the sleeve assembly (500) is inserted into the sliding channel of the pressing assembly (400), and the outer side wall of the sleeve assembly is provided with a second positioning protrusion (T-2) matched with the second spacing protrusion (T-1); when the second positioning projection (T-2) is fitted into the second spacing groove (G-2), the first positioning projection 202d can also be fitted into the first spacing groove (G-1) at the same time.

7. A rearview mirror mount for a truck as claimed in claim 6, wherein: the pressing assembly (400) comprises a driving pipe (401) with a sliding channel inside, a second push rod (402) fixed inside the driving pipe (401), and a second piston head (403) fixed at the lower end of the second push rod (402), wherein a second through hole (403a) is formed in the second piston head (403);

the sleeve assembly (500) comprises an upper pipe section (501) inserted into the driving pipe (401), a lower pipe section (503) fixed at the lower end of the fixing rod (101), and a middle pipe section (502) connected between the upper pipe section (501) and the lower pipe section (503); the upper pipe section (501), the middle pipe section (502) and the lower pipe section (503) cannot rotate circumferentially relative to each other; a second reset piece (404) is also arranged between the top of the driving pipe (401) and the top of the upper pipe section (501);

the second positioning bulge (T-2) is fixed on the outer side wall of the upper pipe section (501), and the second piston head (403) is positioned inside the upper pipe section (501) and can slide relatively in the upper pipe section (501);

a second limiting ring (502a) positioned right below a second piston head (403) is arranged at the upper end of the middle pipe section (502), a plugging piece (504) is arranged inside the middle pipe section (502), and the plugging piece (504) is plugged on a second one-way hole (502a-1) in the center of the second limiting ring (502a) under the extrusion of an elastic piece (505);

a step surface (503a) for limiting an elastic member (505) is formed at the upper end of the lower pipe section (503), and the lower pipe section (503) is rotatably arranged at the bottom of the second shell (300); a ring-shaped fixing groove (503b) is formed in the outer side wall of the lower pipe section (503), a penetrating opening matched with the outer diameter of the lower pipe section (503) is formed in the bottom of the accommodating channel (N), and an annular protrusion (301) matched with the ring-shaped fixing groove (503b) is formed in the inner side wall of the penetrating opening;

the outer diameter of the blocking piece (504) is matched with the inner side wall of the middle pipe section (502), a vertical notch (504a) which is through up and down is arranged on the periphery of the blocking piece (504), and the vertical notch (504a) and the inner side wall of the middle pipe section (502) jointly clamp and are abutted to form a gas transmission channel.

8. A rearview mirror mount for a truck as claimed in claim 7, wherein: the outer side wall of the driving pipe (401) is provided with a guide strip (401a) extending along the length direction of the driving pipe, the inner side wall of the accommodating channel (N) is provided with a guide groove (302) matched with the guide strip (401a), the driving pipe (401) penetrates through the upper end opening of the accommodating channel (N), and the guide strip (401a) is inserted into the guide groove (302); the driving tube (401) can slide along the direction of the guide bar (401 a).

9. A rearview mirror mount for a truck as claimed in claim 8, wherein: the outer side wall of the upper pipe section (501) is attached to the inner side wall of the second shell (300), an interlayer space (M) is formed between the middle pipe section (502) and the inner side wall of the second shell (300), a second ventilation opening (502b) is formed in the side wall of the middle pipe section (502), and the interior of the middle pipe section (502) is communicated with the interlayer space (M) through the second ventilation opening (502 b);

an air outlet channel (303) extending to the interlayer space (M) is arranged inside the side wall of the second shell (300), and the interlayer space (M) is communicated with the external space through the air outlet channel (303).

10. A rearview mirror mount for a truck as claimed in claim 9, wherein: the top of the upper pipe section (501) is provided with a top plate (501a), the center of the top plate (501a) is provided with a through hole (501a-1) corresponding to the second push rod (402), the top plate (501a) is further provided with a third one-way hole (501a-2), the inner side of the third one-way hole (501a-2) is provided with a blocking piece (501b) capable of covering or opening the third one-way hole, and the blocking piece (501b) is fixedly connected with the edge of the inner side of the third one-way hole (501a-2) through any position of the edge of the blocking piece (501 b).