CN220186467U - CAN bus display - Google Patents

Abstract

The utility model relates to the technical field of displays, in particular to a CAN bus display, which comprises a display shell, wherein the display shell comprises a base and a mounting shell, and the mounting shell is in sealing connection with one side surface of the base; a display screen and a key module are arranged on one side surface of the mounting shell, which is far away from the base; the base is far away from a side integrated into one piece of installation shell has the go-between outside threaded connection has the solid fixed ring be provided with locking mechanism between solid fixed ring and the base. In the installation and use process, the anti-loosening device has a certain anti-loosening function and CAN bus displayer is prevented from falling off and being damaged.

Description

CAN bus display

Technical Field

The utility model relates to the technical field of displays, in particular to a CAN bus display.

Background

CAN is an abbreviation for controller area network (Controller Area Network, CAN), which is one of the most widely used internationally used fieldbuses. In some areas, the CAN bus protocol has become the standard bus for automotive computer control systems and embedded industrial control area networks.

In some large vehicles or engineering machines, a CAN bus display is connected through a CAN bus, and corresponding data, such as engine revolution, water temperature, voltage and other parameters, are displayed in the CAN bus display.

The CAN bus display in the prior art comprises a shell, wherein a supporting ring is arranged at one end of the shell, and a locking ring is connected to the supporting ring in a threaded manner. When in installation, corresponding installation holes are formed in a large vehicle or engineering machinery, and the large vehicle or engineering machinery is fixedly connected with the locking ring after penetrating through the installation holes through the supporting ring. Although the CAN bus display CAN be fixed in the mode, certain vibration CAN exist in the use process of a large vehicle or engineering machinery, and the locking ring and the supporting ring CAN be loosened even the locking ring is separated from the supporting ring in the long-time vibration process, so that the CAN bus display falls off. Therefore, in order to avoid the CAN bus display from falling off, it is necessary to design a CAN bus display capable of avoiding falling off.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the utility model provides the CAN bus display which has a certain anti-loosening function and prevents the CAN bus display from falling off and being damaged in the process of installation and use.

(II) technical scheme

In order to achieve the above object, an embodiment of the present utility model provides a CAN bus display, including a display housing, where the display housing includes a base and a mounting shell, and the mounting shell is connected with a side surface of the base in a sealing manner; a display screen and a key module are arranged on one side surface of the mounting shell, which is far away from the base; the base is far away from a side integrated into one piece of installation shell has the go-between outside threaded connection has the solid fixed ring be provided with locking mechanism between solid fixed ring and the base.

Preferably, the base protrudes to one side close to the connecting ring to form an annular cylinder, and a first placing cavity is formed inside the annular cylinder; the first placing cavity is provided with a first circuit board; the connecting ring is arranged on the inner side of the connecting ring and positioned on the end face of the annular cylinder, a first data connector is electrically connected with the first circuit board, and the other end of the first data connector is positioned in the connecting ring and used for being connected with a CAN bus.

Preferably, the anti-loosening mechanism comprises limiting edges which are arranged on the outer side of the annular cylinder and are arranged on the circumferential side wall at intervals along the circumferential direction; the length direction of the limiting edges is parallel to the axis direction of the annular cylinder, and limiting grooves are formed between adjacent limiting edges; a support ring is arranged on one side of the fixed ring, which is far away from the connecting ring, the support ring is sleeved on the outer side of the annular cylinder, and a mounting ring detachably connected with the support ring is arranged on the outer side of the fixed ring; the support ring is provided with a through limiting hole, a locking piece is arranged at the limiting hole and matched with the limiting edge, and two groups of locking pieces are arranged along the circumferential direction of the support ring.

Preferably, one end of the supporting ring far away from the mounting ring extends outwards to form an annular boss, and the limiting hole is positioned on one side surface of the annular boss close to the mounting ring; the anti-loose piece comprises a supporting shaft, the supporting shaft is positioned in the limiting hole, one end of the supporting shaft is arranged on the annular boss, a positioning hole is formed in the mounting ring, and the other end of the supporting shaft is inserted into the positioning hole; the limiting hole is positioned in the supporting shaft and is rotationally connected with a supporting column, one side of the supporting column, which is positioned on the supporting shaft, is provided with a control plate, the other side of the supporting column is provided with a limiting plate, one side of the limiting plate, which is close to the annular cylinder, is provided with a ratchet, and the ratchet can be embedded into or separated from the limiting groove; the middle part of the support column is provided with a mounting opening, and a torsion spring is arranged in the mounting opening; the elasticity of the torsion spring controls the limiting plate to rotate to one side close to the annular cylinder.

Preferably, clamping grooves are formed on the annular boss and located on two sides of the supporting shaft respectively, and one ends of the control plate and the limiting plate are respectively embedded in the clamping grooves.

Preferably, a first step and a second step are formed on two sides of the support ring, which are close to the limiting hole, respectively, the first step is located on one side, which is close to the control plate, the second step is located on one side, which is close to the limiting plate, and when the control plate and the limiting plate rotate around the support shaft to the maximum position, the control plate is abutted to the first step or the limiting plate is abutted to the second step; when the control plate is abutted with the first step, the ratchet is separated from the limiting groove, and when the limiting plate is abutted with the second step, the ratchet is embedded in the limiting groove.

Preferably, a second circuit board is arranged on the inner side of the installation shell, the second circuit board is electrically connected with the first circuit board, and the second circuit board is connected with the display screen and the key module.

Preferably, a plurality of key holes are formed in the mounting shell at intervals, the key module comprises a push type key arranged on the second circuit board, the push type key comprises a key column, and when the key column is pushed, the push type key transmits signals; the key column is provided with a transmitting hole, a light emitting diode is arranged in the transmitting hole, a sealing plate is fixed in the mounting shell through bolts, communicating holes are arranged on the sealing plate at intervals, and the communicating holes correspond to the key holes one by one; the sealing plate with be provided with the silica gel button between the installation shell, the silica gel button include silica gel sealed pad with set up in a plurality of key caps on the silica gel sealed pad, the key cap by the button hole wears out, the key cap with key post one-to-one be provided with the printing opacity portion of printing opacity on the key cap.

Preferably, a second data connector is arranged in the connecting ring and positioned on the end face of the annular cylinder.

Preferably, an annular baffle is arranged on the base and located in the mounting shell, and the annular baffle is located on the outer side of the first placing cavity.

(III) beneficial effects

The utility model provides a CAN bus display, which is fixed through threaded connection of a connecting ring and a fixing ring during installation, and after the fixing, a locking effect is achieved through arranging a locking mechanism between the fixing ring and a base, so that the relative rotation of the fixing ring and the connecting ring is avoided, and the CAN bus display is prevented from falling off after the installation. Meanwhile, the key module can play a waterproof effect through the sealing plate and the integrated silica gel sealing pad and the key cap, and meanwhile, the key module has a light-emitting function through the light-emitting diode arranged on the key column, so that the key module is convenient to operate at night.

Drawings

FIG. 1 is a schematic diagram of a CAN bus display according to the utility model;

FIG. 2 is a schematic view of a protruding base of a CAN bus display according to the utility model;

FIG. 3 is a front view of a CAN bus display of the utility model;

FIG. 4 is a cross-sectional view highlighting the A-A direction of FIG. 2;

FIG. 5 is a schematic view of a protruding anti-loosening mechanism in a CAN bus display according to the utility model;

FIG. 6 is an enlarged view of the structure A of FIG. 5;

FIG. 7 is a schematic diagram showing the positional relationship among a protruding control board, a limiting board and a clamping groove in a CAN bus display according to the utility model;

FIG. 8 is a schematic view of a protruding stop edge in a CAN bus display according to the utility model;

FIG. 9 is a cross-sectional view of a protruding key module in a CAN bus display according to the utility model;

fig. 10 is an exploded view of a protruding key module in a CAN bus display according to the present utility model.

The reference numerals in the drawings:

100. a display housing; 110. a base; 111. an annular cylinder; 112. a first placement cavity; 120. a mounting shell; 121. a key hole; 130. a first circuit board; 140. a first data connector; 150. a second data wire connector; 160. a second circuit board; 170. an annular baffle; 200. a display screen; 300. a key module; 310. pressing a key; 311. a key post; 3111. a transmitting hole; 312. a light emitting diode; 320. a sealing plate; 321. a communication hole; 330. a silica gel key; 331. a silica gel sealing pad; 332. a key cap; 3322. a light transmitting portion; 400. a connecting ring; 500. a fixing ring; 510. a support ring; 511. a limiting hole; 512. a first step; 513. a second step; 520. a mounting ring; 521. positioning holes; 530. an annular boss; 531. a clamping groove; 600. a locking mechanism; 610. limit edges; 611. a limit groove; 620. a locking piece; 621. a support shaft; 622. a support column; 6221. a mounting port; 623. a control panel; 624. a limiting plate; 625. a ratchet; 626. and (3) a torsion spring.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples

The utility model provides a CAN bus display, see FIG. 1-FIG. 10, comprising a display shell 100, wherein the display shell 100 comprises a base 110 and a mounting shell 120, and the mounting shell 120 is in sealing connection with one side surface of the base 110; a display screen 200 and a key module 300 are arranged on one side surface of the mounting shell 120 away from the base 110; the base 110 is kept away from a side integrated into one piece of installation shell 120 and has the go-between 400, and threaded connection has solid fixed ring 500 in the go-between 400 outside, is provided with locking mechanism 600 between solid fixed ring 500 and base 110, through locking mechanism 600 that sets up, after the installation, in the use, can avoid leading to solid fixed ring 500 and go-between 400 to become flexible because of vibrations.

Specifically, the base 110 protrudes toward the side close to the connection ring 400 to form an annular cylinder 111, and a first placement chamber 112 is formed inside the annular cylinder 111. A first circuit board 130 is disposed within the first placement cavity 112; the first data connector 140 is disposed inside the connection ring 400 and located on the end surface of the annular cylinder 111, the first data connector 140 is electrically connected with the first circuit board 130, and the other end of the first data connector 140 is located inside the connection ring 400 and is used for connecting with a CAN bus.

A second data connector 150 is disposed within the connection ring 400 and on the end face of the annular barrel 111. Through the second data connector 150 provided, a connector for data output or data input can be connected.

The anti-loosening mechanism 600 includes limiting ribs 610 disposed on the outer side of the annular cylinder 111 and disposed on the circumferential sidewall at intervals along the circumferential direction; the length direction of the limiting ribs 610 is parallel to the axial direction of the annular cylinder 111, and limiting grooves 611 are formed between adjacent limiting ribs 610.

The side of the fixing ring 500 away from the connection ring 400 is provided with a support ring 510, the support ring 510 is sleeved on the outer side of the annular cylinder 111, and the outer side of the fixing ring 500 is provided with a mounting ring 520 detachably connected with the support ring 510. In particular, the detachable mode can be connected by a screw fixing mode.

The support ring 510 is provided with a through limiting hole 511, the limiting hole 511 is provided with an anti-loosening member 620, the anti-loosening member 620 is matched with the limiting rib 610, and the anti-loosening member 620 is provided with two groups along the circumferential direction of the support ring 510. After the mounting ring 520 is removed, the locking member 620 can be removed and mounted.

The end of the support ring 510 away from the mounting ring 520 is outwardly extended to form an annular boss 530, and the limiting hole 511 is located on a side surface of the annular boss 530 adjacent to the mounting ring 520.

The anti-loosening element 620 includes a supporting shaft 621, the supporting shaft 621 is located in the limiting hole 511, one end of the supporting shaft 621 is disposed on the annular boss 530, specifically, a clamping hole is disposed on the annular boss 530, and one end of the supporting shaft is located in the clamping hole. The mounting ring 520 is provided with a positioning hole 521, and the other end of the supporting shaft 621 is inserted into the positioning hole 521.

The support column 622 is rotatably connected in the limit hole 511 and located on the support shaft 621, the control plate 623 is arranged on the support column 622 and located on one side of the support shaft 621, the limit plate 624 is formed on the other side, the ratchet 625 is arranged on one side, close to the annular barrel 111, of the limit plate 624, and the ratchet can be embedded into or separated from the limit groove 611.

The middle part of the support column 622 is provided with a mounting opening 6221, and a torsion spring 626 is arranged in the mounting opening 6221; the elastic force of the torsion spring 626 controls the stopper 624 to rotate toward the side close to the annular tube 111.

The annular boss 530 is provided with a clamping groove 531 at two sides of the supporting shaft 621, and one ends of the control plate 623 and the limiting plate 624 are respectively embedded in the clamping groove 531. The control plate 623 and the limiting plate 624 can be limited by the clamping grooves 531, so that they are kept between the annular boss 530 and the mounting ring 520.

The two sides of the support ring 510, which are close to the limiting hole 511, are respectively formed with a first step 512 and a second step 513, the first step 512 is located at one side, which is close to the control plate 623, the second step 513 is located at one side, which is close to the limiting plate 624, and when the control plate 623 and the limiting plate 624 rotate around the support shaft 621 to the maximum positions, the control plate 623 is abutted with the first step 512 or the limiting plate 624 is abutted with the second step 513; when the control plate 623 abuts against the first step 512, the ratchet is separated from the limit groove 611, and when the limit plate 624 abuts against the second step 513, the ratchet is engaged in the limit groove 611.

The second circuit board 160 is disposed on the inner side of the mounting case 120, the second circuit board 160 is electrically connected to the first circuit board 130, and the second circuit board 160 is connected to the display screen 200 and the key module 300.

The mounting case 120 is provided with a plurality of key holes 121 at intervals, the key module 300 includes a push button 310 mounted on the second circuit board 160, the push button 310 includes a key post 311, and the push button 310 transmits a signal when the key post 311 is pushed. The key post 311 is provided with an emission hole 3111, and the light emitting diode 312 is provided in the emission hole 3111. The light emitting diode emits bright light to the outside of the emission hole 3111.

A sealing plate 320 is fixed in the mounting shell 120 through bolts, communication holes 321 are arranged on the sealing plate 320 at intervals, and the communication holes 321 correspond to the key holes 121 one by one; a silica gel key 330 is disposed between the sealing plate 320 and the mounting case 120, the silica gel key 330 includes a silica gel sealing pad 331 and a plurality of key caps 332 disposed on the silica gel sealing pad 331, the key caps 332 penetrate through the key holes 121, the key caps 332 are in one-to-one correspondence with the key columns 311, and a light-transmitting portion 3322 is disposed on the key caps 332. After the installation, the silica gel sealing pad 331 is pressed and fixed by the sealing plate 320 and the installation case 120, and the silica gel sealing pad 331 seals the key hole 121. The key post 311 can be pressed by the key cap 332. Meanwhile, the light emitting diode 312 can pass through the light transmitting portion 3322, so that the key module 300 has a light emitting function, and is convenient for operation at night.

Preferably, an annular baffle 170 is disposed on the base 110 and within the mounting housing 120, the annular baffle 170 being located outside of the first placement cavity 112.

The utility model provides a CAN bus display, which is fixed by connecting a connecting ring 400 with a fixing ring 500 in a threaded manner during installation, and after the fixing, a locking effect is achieved by arranging a locking mechanism 600 between the fixing ring 500 and a base 110, so that the relative rotation of the fixing ring 500 and the connecting ring 400 is avoided, and the CAN bus display is prevented from falling off after the installation. Meanwhile, the key module 300 can play a waterproof role through the sealing plate 320 and the integrally formed silica gel sealing pad 331 and the key cap 332, and meanwhile, the key module 300 has a light emitting function through the light emitting diode 312 built in the key post 311, so that the key module 300 is convenient to operate at night.

In the description of the present utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," "front," "rear," and the like indicate an azimuth or a positional relationship based on that shown in the drawings, and are merely for convenience of description and to simplify the description, but do not indicate or imply that the apparatus or elements to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediary, or communicating between the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art. Embodiments of the utility model and features of the embodiments may be combined with each other without conflict.

The foregoing examples merely illustrate embodiments of the utility model and are described in more detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. A CAN bus display, characterized by: the display comprises a display shell (100), wherein the display shell (100) comprises a base (110) and a mounting shell (120), and the mounting shell (120) is in sealing connection with one side surface of the base (110); a display screen (200) and a key module (300) are arranged on one side surface of the mounting shell (120) far away from the base (110);

a connecting ring (400) is integrally formed on one side surface, far away from the mounting shell (120), of the base (110), a fixing ring (500) is connected to the outer side of the connecting ring (400) in a threaded mode, and a locking mechanism (600) is arranged between the fixing ring (500) and the base (110).

2. The CAN bus display of claim 1, wherein: the base (110) protrudes towards one side close to the connecting ring (400) to form an annular cylinder (111), and a first placing cavity (112) is formed inside the annular cylinder (111); the first placing cavity (112) is provided with a first circuit board (130); the connecting ring (400) is arranged on the inner side of the connecting ring (400), a first data connector (140) is arranged on the end face of the annular cylinder (111), the first data connector (140) is electrically connected with the first circuit board (130), and the other end of the first data connector (140) is arranged in the connecting ring (400) and used for being connected with a CAN bus.

3. The CAN bus display of claim 2, wherein: the anti-loosening mechanism (600) comprises limiting edges (610) which are arranged at the outer side of the annular cylinder (111) and are arranged on the circumferential side wall at intervals along the circumferential direction; the length direction of the limiting edges (610) is parallel to the axial direction of the annular cylinder (111), and limiting grooves (611) are formed between adjacent limiting edges (610);

a supporting ring (510) is arranged on one side, far away from the connecting ring (400), of the fixing ring (500), the supporting ring (510) is sleeved on the outer side of the annular cylinder (111), and a mounting ring (520) detachably connected with the supporting ring (510) is arranged on the outer side of the fixing ring (500);

the support ring (510) is provided with a through limiting hole (511), the limiting hole (511) is provided with a locking piece (620), the locking piece (620) is matched with the limiting edge (610), and the locking piece (620) is provided with two groups along the circumferential direction of the support ring (510).

4. A CAN bus display according to claim 3, characterized in that: an annular boss (530) is formed by extending one end of the supporting ring (510) far away from the mounting ring (520), and the limiting hole (511) is positioned on one side surface of the annular boss (530) close to the mounting ring (520);

the anti-loose piece (620) comprises a supporting shaft (621), the supporting shaft (621) is located in the limiting hole (511), one end of the supporting shaft (621) is arranged on the annular boss (530), a positioning hole (521) is formed in the mounting ring (520), and the other end of the supporting shaft (621) is inserted into the positioning hole (521);

the limiting hole (511) is internally provided with a supporting column (622) which is positioned on the supporting shaft (621) in a rotating manner, one side of the supporting column (622) which is positioned on the supporting shaft (621) is provided with a control plate (623), the other side of the supporting column is provided with a limiting plate (624), one side surface, close to the annular cylinder (111), of the limiting plate (624) is provided with a ratchet (625), and the ratchet (625) can be embedded into or separated from the limiting groove (611);

a mounting opening (6221) is formed in the middle of the support column (622), and a torsion spring (626) is arranged in the mounting opening (6221); the elastic force of the torsion spring (626) controls the limiting plate (624) to rotate towards one side close to the annular cylinder (111).

5. The CAN bus display of claim 4, wherein: clamping grooves (531) are formed in the annular boss (530) and located on two sides of the supporting shaft (621), and one ends of the control plate (623) and the limiting plate (624) are respectively embedded in the clamping grooves (531).

6. The CAN bus display of claim 4, wherein: a first step (512) and a second step (513) are respectively formed on two sides, close to the limiting hole (511), of the supporting ring (510), the first step (512) is located on one side, close to the control plate (623), the second step (513) is located on one side, close to the limiting plate (624), of the supporting ring, and when the control plate (623) and the limiting plate (624) rotate to the maximum positions around the supporting shaft (621), the control plate (623) is abutted with the first step (512) or the limiting plate (624) is abutted with the second step (513);

when the control plate (623) is abutted to the first step (512), the ratchet is separated from the limit groove (611), and when the limit plate (624) is abutted to the second step (513), the ratchet (625) is embedded in the limit groove (611).

7. The CAN bus display of claim 2, wherein: the inside of installation shell (120) is provided with second circuit board (160), second circuit board (160) with first circuit board (130) electric connection, second circuit board (160) connect display screen (200) with button module (300).

8. The CAN bus display of claim 7, wherein: a plurality of key holes (121) are formed in the mounting shell (120) at intervals, the key module (300) comprises a push type key (310) mounted on the second circuit board (160), the push type key (310) comprises a key column (311), and when the key column (311) is pushed, the push type key (310) transmits signals;

the key column (311) is provided with a transmitting hole (3111), and a light emitting diode (312) is arranged in the transmitting hole (3111);

a sealing plate (320) is fixed in the mounting shell (120) through bolts, communication holes (321) are formed in the sealing plate (320) at intervals, and the communication holes (321) correspond to the key holes (121) one by one;

be provided with silica gel button (330) between closing plate (320) with install shell (120), silica gel button (330) including silica gel sealed pad (331) with set up in a plurality of key caps (332) on silica gel sealed pad (331), key cap (332) are worn out by button hole (121), key cap (332) with key post (311) one-to-one be provided with printing opacity portion (3322) on key cap (332).

9. The CAN bus display of claim 2, wherein: a second data connector (150) is arranged in the connecting ring (400) and positioned on the end face of the annular cylinder (111).

10. The CAN bus display of claim 2, wherein: an annular baffle (170) is arranged on the base (110) and located in the mounting shell (120), and the annular baffle (170) is located on the outer side of the first placing cavity (112).