CN212226605U

CN212226605U - Electronic bidding device based on Internet

Info

Publication number: CN212226605U
Application number: CN202020818564.7U
Authority: CN
Inventors: 彭泽胜
Original assignee: Sichuan Ronghui Project Management Group Co ltd
Current assignee: Ronghui Project Management Co.,Ltd.
Priority date: 2020-05-15
Filing date: 2020-05-15
Publication date: 2020-12-25
Anticipated expiration: 2030-05-15

Abstract

The utility model relates to an electron poster device based on internet, including poster board and base, the poster board sets up on the roof of base, has seted up first holding tank on the roof of base, and first holding tank internal rotation is provided with the connecting rod, and poster board and connecting rod fixed connection set up deflection subassembly and lifting unit on the connecting rod. In the use of sign is beckoned to the electron, can make the sign deflect around the axis of connecting rod through the subassembly that deflects, be used for the orientation of sign is beckoned in the adjustment, can make the connecting rod be the up-and-down motion along the length direction of first holding tank in first holding tank through lifting unit, then drive the sign of beckong and do the up-and-down motion in vertical direction, cooperation through deflection subassembly and lifting unit, can make orientation and the altitude variation of beckong, can adapt to different beaconing environment, the effectual result of use that signs was beckoned in has improved, and the applicability is improved.

Description

Electronic bidding device based on Internet

Technical Field

The utility model relates to a bid equipment field, in particular to device is beckoned to electron based on internet.

Background

The bid inviting means that the bidder realizes sending the notice of bid inviting, announces the project demand, and bidder's fair competition needs to use the information that the electron device of inviting shows the bidder in the bid inviting process to the bidder carries out suitable screening, and the bidder who finally selects to be fit for cooperateing.

Chinese patent with an authorized bulletin number CN210136668U discloses an electronic bulletin board for signage, which comprises an electronic bulletin board body and a bearing device for bearing the electronic bulletin board body, wherein the bearing device comprises four vertical beams and a containing table arranged at the top ends of the vertical beams and used for containing the electronic bulletin board body; when the electronic bulletin board is used for carrying out the bidding, the electronic bulletin board body is placed on the accommodating table, and the electronic bulletin board is started to be used after the power supply of the electronic bulletin board is turned on.

The above prior art scheme has the following defects that when the electronic bulletin board is used, the electronic bulletin board is often required to be adjusted according to different use environments, but the electronic bulletin board in the prior art is fixedly arranged on the accommodating table, different use scenes are difficult to achieve, and the electronic bulletin board has great limitations.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an electron device of calling out tender based on internet has the advantage that adapts to different service environment.

The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides an electron is beckoned mark device based on internet, is including beckoned mark board and base, the beckoned mark board sets up in the roof of base, first holding tank has been seted up along vertical direction on the roof of base, first holding tank internal rotation is provided with the connecting rod, beckoned mark board and the one end fixed connection of holding tank is kept away from to the connecting rod, be provided with on the connecting rod and be used for ordering about the subassembly that deflects that beckoned mark board deflected around the connecting rod axis, be provided with on the connecting rod and be used for ordering about the lifting unit that the beckoned mark board slided from top to bottom along vertical.

Through adopting above-mentioned technical scheme, in the use of sign is beckoned to the electron, place the electron and beckoned the mark device in the assigned position, when needs are to beckoned the position of sign and remove, can make the beckoned the mark around the axis deflection of connecting rod through the subassembly that deflects, be used for the orientation of sign is beckoned in the adjustment, can make the connecting rod do the up-and-down motion along the length direction of first holding tank in first holding tank through lifting unit, then drive beckoned the sign and do the up-and-down motion in vertical direction, cooperation through deflection subassembly and lifting unit, can make orientation and the altitude mixture of beckoned the sign, can adapt to different beckoned the mark environment, the effectual result of use that has improved the beckoned the sign, the suitability is improved.

The present invention may be further configured in a preferred embodiment as: the deflection assembly comprises a first gear and a first rack, the first gear is sleeved on the connecting rod in a sliding mode, a mounting groove communicated with the first accommodating groove is formed in the top wall of the base, the gear is rotatably arranged in the accommodating groove, a clamping key is fixedly arranged on the connecting rod along the axial direction of the connecting rod, and a key groove for the clamping key to insert is formed in the side wall of the first gear;

the top wall of base has seted up the spout, the lateral wall and the mounting groove of spout link up, it is provided with the slider to slide along the length direction of spout in the spout, the fixed first rack that is provided with on the slider, first rack and first gear engagement, be provided with on the base and be used for ordering about the slider and be reciprocating motion's drive assembly along the length direction of spout.

Through adopting above-mentioned technical scheme, start drive assembly, reciprocating motion is to the length direction of slider along the spout under drive assembly's drive, drive first rack motion then, first gear rotates around the axis of connecting rod in the mounting groove under the drive of first rack, it is rotatory to drive the connecting rod, the connecting rod drives and recruits the sign and be deflection motion, the meshing through rack and pinion carries out the transmission, be used for ordering about recruiting the sign and deflecting around the connecting rod, the transmission is more accurate, and the deflection angle is controlled more easily.

The present invention may be further configured in a preferred embodiment as: the driving assembly comprises a first motor and a lead screw, the lead screw is rotatably arranged in the sliding groove in a penetrating mode along the length direction of the sliding groove, the first motor is fixedly arranged on the base, an output shaft of the first motor is fixedly connected with the lead screw in a coaxial mode, and the sliding block is sleeved on the lead screw in a threaded mode.

Through adopting above-mentioned technical scheme, start first motor, first motor drives the lead screw at the spout internal rotation, then it slides to drive the slider of threaded sleeve on the lead screw along the length direction of spout in the spout, the slider drives first rack motion, as drive assembly through first motor and lead screw, the reciprocal linear motion of slider in the spout is controlled with the reversal through just passing of motor, the drive is more accurate, and is convenient, very big improvement driven efficiency, the control deflection of signboard is beckoned more to the convenience, the suitability of device is beckoned in the improvement.

The present invention may be further configured in a preferred embodiment as: the lifting device comprises a second gear, a second rack and a second motor, wherein one end of the connecting rod, which is positioned in the first accommodating groove, is rotatably sleeved with a rotating sleeve, the rotating sleeve is fixedly provided with the second rack, a second accommodating groove communicated with the first accommodating groove is formed in the base, the second gear is rotatably arranged on the side wall of the second accommodating groove, the second gear is meshed with the second rack, the second motor is fixedly arranged on the bottom wall of the second accommodating groove, and the second motor is in transmission connection with the second gear.

Through adopting above-mentioned technical scheme, start the second motor, the second motor drives second gear revolve, second gear and the meshing of second rack, drive the second rack along vertical direction up-and-down motion, then drive the rotation cover and move in vertical direction, the rotation cover drives the connecting rod along vertical direction up-and-down motion in first holding tank, and finally drive the up-and-down motion of signboard, a height for adjusting the signboard, the meshing through rack and pinion carries out the transmission, a deflection around the connecting rod for ordering about the signboard, the transmission is more accurate, and the height of going up and down is controlled more easily.

The present invention may be further configured in a preferred embodiment as: the transmission rod coaxially penetrates through the second gear, a worm wheel is coaxially fixedly sleeved on the transmission rod, a worm is coaxially and fixedly connected with an output shaft of the second motor, and the worm wheel is meshed with the worm.

Through adopting above-mentioned technical scheme, start the second motor, the second motor drives the output shaft rotation of worm around the second motor, the axis that winds the transfer line under the drive of worm with worm meshed worm wheel, then drive the second gear and rotate, the worm wheel and worm have the performance of auto-lock, can only the worm drives the worm wheel and rotates, can not the worm wheel drive the worm and rotate, when the lifting height of adjustment signboard, effectually avoided the signboard to take place the accident and fall down, very big improvement the security performance of signboard device.

The present invention may be further configured in a preferred embodiment as: be provided with the anticreep portion that is used for preventing first gear and breaks away from on the holding tank, anticreep portion includes the surrounding edge, the fixed notch department that sets up at the mounting groove of surrounding edge, it is provided with the ball to roll on the first gear.

Through adopting above-mentioned technical scheme, when the connecting rod is along vertical direction up-and-down motion in first holding tank under lifting unit's drive, first gear is along vertical direction up-and-down motion in the mounting groove again under the drive of connecting rod, in the time of gear up-and-down motion, the lateral wall of gear is inconsistent with the diapire of surrounding edge, avoided first gear to break away from the mounting groove under the drive of connecting rod, guaranteed that first gear meshes with first rack mutually all the time, make the signboard at arbitrary height, all can realize deflecting, the effectual practicality that improves the signboard device.

The present invention may be further configured in a preferred embodiment as: the bottom wall of the base is fixedly provided with a plurality of supporting rods, a third accommodating groove is formed in the bottom wall of each supporting rod upwards along the vertical direction, a supporting wheel is arranged in the third accommodating groove in a rotating mode, two clamping blocks are arranged in the third accommodating groove in a sliding mode and are respectively arranged on two sides of the supporting wheel, and an elastic part used for driving the two clamping blocks to move towards the direction away from each other is arranged in the third accommodating groove;

the utility model discloses a support structure for fixing the fixture block, including the bracing piece, the lateral wall of bracing piece is provided with the supporting shoe in a sliding manner, set up the bar hole with the third holding tank intercommunication along vertical direction on the lateral wall of bracing piece, the bar downthehole slip is provided with the connecting block, the one end and the fixture block fixed connection of connecting block, the other end and supporting shoe fixed connection, the fixture block is close to and fixedly is provided with first latch on the lateral wall of supporting shoe, fixedly on the lateral wall of third holding tank be provided with the second latch of first latch interlock with fixed fixture block position.

By adopting the technical scheme, when the bidding device is used, the whole bidding device is convenient to carry by rotating the supporting wheel arranged in the third accommodating groove, the two supporting blocks move towards the direction close to each other in the horizontal direction, the two supporting blocks drive the clamping blocks to approach each other through the connecting block, the two clamping blocks extrude the elastic part to enable the elastic part to store elastic potential energy, then the supporting blocks vertically slide downwards, the supporting blocks drive the clamping blocks to move downwards through the connecting block, when the bottom walls of the supporting blocks are contacted with the ground, the supporting blocks are loosened, the clamping blocks move towards the direction away from each other under the driving of the elastic part, the first clamping teeth and the second clamping teeth arranged on the clamping block are meshed, so that the position of the first clamping teeth is fixed, then the position of the supporting blocks is fixed, the sliding friction is changed into rolling friction through the supporting wheel, the friction force is greatly reduced, and the carrying is convenient, through the supporting shoe, when the device arrives appointed place, improved the frictional force between device and the ground of inviting, avoided inviting the skew that the device leads to the position because artificial mistake touches to a certain extent.

The present invention may be further configured in a preferred embodiment as: and anti-skid grains are fixedly arranged on the bottom wall of the supporting block.

Through adopting above-mentioned technical scheme, when the diapire of supporting shoe is contradicted with ground, the effectual coefficient of friction that has improved of anti-skidding line has further avoided inviting the mark device because artificial mistake touches and leads to offset.

To sum up, the utility model discloses a following at least one useful technological effect:

the signboard moving device comprises a deflection assembly, a lifting assembly, a first accommodating groove, a second accommodating groove, a lifting assembly, a first accommodating groove, a second accommodating groove, a third accommodating groove, a fourth accommodating groove, a;

the first motor and the lead screw are used as driving components, the reciprocating linear motion of the sliding block in the sliding groove is controlled through forward transmission and reverse rotation of the motor, the driving is more accurate and convenient, the transmission efficiency is greatly improved, the deflection of the signboard calling board is more conveniently controlled, and the applicability of the signboard calling device is improved;

the worm gear and the worm have self-locking performance, only the worm can drive the worm gear to rotate, but the worm cannot drive the worm to rotate, when the lifting height of the signboard is adjusted, the signboard is effectively prevented from falling down due to accidents, and the safety performance of the signboard moving device is greatly improved;

the sliding friction is changed into rolling friction through the supporting wheels, the friction force is greatly reduced, the carrying is facilitated, the friction force between the bidding device and the ground is improved when the bidding device reaches a specified place through the supporting blocks, and the deviation of the position of the bidding device caused by artificial error touch is avoided to a certain extent.

Drawings

Fig. 1 is a schematic structural view of the main body of the present invention;

fig. 2 is a schematic structural view of the deflection assembly and the lifting assembly of the present invention;

fig. 3 is a schematic structural view of the anti-separation part of the present invention;

fig. 4 is a schematic structural view of the support rod of the present invention;

fig. 5 is a sectional view of the support rod of the present invention.

Reference numerals: 1. signboard marking; 2. a base; 21. a first accommodating groove; 22. a connecting rod; 23. a card key; 24. a keyway; 3. a deflection assembly; 31. a first gear; 32. a first rack; 33. mounting grooves; 34. a chute; 35. a slider; 4. a drive assembly; 41. a first motor; 42. a lead screw; 43. a strip-shaped groove; 5. a lifting assembly; 51. a second gear; 52. a second rack; 53. a second motor; 54. rotating the sleeve; 55. a second accommodating groove; 6. a transmission rod; 61. a worm gear; 62. a worm; 7. an anti-drop part; 71. a ball bearing; 8. a support bar; 81. a support wheel; 82. a support block; 83. a strip-shaped hole; 84. connecting blocks; 85. anti-skid lines; 9. a third accommodating groove; 91. a clamping block; 92. an elastic member; 93. a first latch; 94. and a second latch.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1 and 2, an electronic signboard device based on internet, including signboard 1 and base 2, signboard 1 sets up in the roof of base 2, and signboard 1's appearance is the rectangle, has seted up first holding tank 21 along vertical direction on base 2's the roof, and first holding tank 21 is circular recess, and first holding tank 21 internal rotation is provided with connecting rod 22, and connecting rod 22 is circular pole, and signboard 1 keeps away from the one end fixed connection of first holding tank 21 with connecting rod 22.

As shown in fig. 2 and 3, the connecting rod 22 is provided with a deflection assembly 3 for driving the signboard 1 to deflect around the axis of the connecting rod 22, the deflection assembly 3 includes a first gear 31 and a first rack 32, the first gear 31 is slidably sleeved on the connecting rod 22 along the vertical direction, the top wall of the base 2 is provided with an installation groove 33 communicated with the first accommodating groove 21, the installation groove 33 is a circular groove, the diameter of the installation groove 33 is greater than that of the first accommodating groove 21, and the first gear 31 is rotatably disposed in the installation groove 33. A clamping key 23 is fixedly arranged on the connecting rod 22 along the axis of the connecting rod 22, and a key groove 24 for inserting the clamping key 23 is formed in the first gear 31.

As shown in fig. 2, a sliding groove 34 is formed in the top wall of the base 2, a side wall of the sliding groove 34 is communicated with the mounting groove 33, a sliding block 35 is arranged in the sliding groove 34 in a sliding manner along the length direction of the sliding groove 34, the sliding block 35 is a rectangular block, the length direction of the sliding groove 34 is the length direction of the sliding block 35, a first rack 32 is fixedly arranged on the sliding block 35, and the first rack 32 is meshed with the first gear 31. Reciprocating motion is made along the length direction of spout 34 to slider 35, then drive first rack 32 motion, first gear 31 rotates around the axis of connecting rod 22 in mounting groove 33 under the drive of first rack 32, it is rotatory to drive connecting rod 22, connecting rod 22 drives and signs 1 and is the deflection motion, the meshing through rack and pinion carries out the transmission, be used for ordering about signs 1 and deflect around connecting rod 22, the transmission is more accurate, and the deflection angle is controlled more easily.

As shown in fig. 2, be provided with on base 2 and be used for driving about slider 35 to be reciprocating motion's drive assembly 4 along the length direction of spout 34, drive assembly 4 includes first motor 41 and lead screw 42, lead screw 42 rotates along the length direction of spout 34 and sets up in spout 34, the axis of lead screw 42 is parallel with spout 34, set up the bar groove 43 with spout 34 intercommunication on base 2's the roof, first motor 41 is fixed to be set up in bar groove 43, the output shaft of first motor 41 and the coaxial fixed connection of lead screw 42, slider 35 threaded sleeve establishes on lead screw 42. Start first motor 41, first motor 41 drives lead screw 42 at the internal rotation of spout 34, then it slides along the length direction of spout 34 in spout 34 to drive the slider 35 of threaded sleeve on lead screw 42, slider 35 drives first rack 32 motion, regard as drive assembly 4 through first motor 41 and lead screw 42, just pass through the motor and reversal come the reciprocal linear motion of control slider 35 in spout 34, the drive is more accurate, and is convenient, very big improvement driven efficiency, the deflection of sign 1 is beckoned in the control has been made things convenient for more, the suitability of device is beckoned in the improvement.

In addition, as shown in fig. 2, the connecting rod 22 is provided with a lifting assembly 5 for driving the signboard 1 to slide up and down in the first accommodating groove 21 in the vertical direction, and the lifting device includes a second gear 51, a second rack 52 and a second motor 53. The one end rotating sleeve 54 that connecting rod 22 is located first holding tank 21 is equipped with rotating sleeve 54, the fixed second rack 52 that is provided with along vertical direction on rotating sleeve 54's the outer wall, the second holding tank 55 with first holding tank 21 intercommunication has been seted up in base 2, the internal rotation of second holding tank 55 is provided with second gear 51, second gear 51 and the meshing of second rack 52, the fixed diapire that sets up at second holding tank 55 of second motor 53, second motor 53 is connected with second gear 51 transmission.

Start second motor 53, second motor 53 drives second gear 51 and rotates, second gear 51 and the meshing of second rack 52, it follows vertical direction up-and-down motion to drive second rack 52, then drive and rotate cover 54 and move in vertical direction, it drives connecting rod 22 along vertical direction up-and-down motion in first holding tank 21 to rotate cover 54, and finally drive and attract sign 1 up-and-down motion, a height for attracting sign 1 is adjusted, the meshing through rack and pinion carries out the transmission, a deflection around connecting rod 22 is attracted for ordering about to attract sign 1, the transmission is more accurate, and the height of going up and down is controlled more easily.

As shown in fig. 2, a transmission rod 6 is inserted through the second gear 51, an axis of the transmission rod 6 is coaxial with an axis of the second gear 51, a worm wheel 61 is coaxially and fixedly sleeved on the transmission rod 6, an output shaft of the second motor 53 is coaxially and fixedly connected with a worm 62, and the worm wheel 61 is meshed with the worm 62. When the second motor 53 is started, the second motor 53 drives the worm 62 to rotate around the output shaft of the second motor 53, and the worm wheel 61 meshed with the worm 62 rotates around the axis of the transmission rod 6 under the driving of the worm 62, so as to drive the second gear 51 to rotate. Worm wheel 61 worm 62 has the performance of auto-lock, can only worm 62 drive worm wheel 61 and rotate, can not worm wheel 61 drive worm 62 and rotate, when the lifting height of sign 1 is being called in the adjustment, the effectual sign 1 of having avoided meets accident and falls down, very big improvement the security performance of sign device.

As shown in fig. 1 and 3, the accommodating groove is provided with a retaining portion 7 for preventing the first gear 31 from disengaging, the retaining portion 7 includes a surrounding edge, the surrounding edge is annular, the surrounding edge is fixedly arranged at the groove opening of the mounting groove 33, and a ball 71 in rolling contact with the bottom wall of the mounting groove 33 is arranged on the side wall of the first gear 31. When the rack drives the gear to rotate around the axis of the connecting rod 22, the ball 71 is in rolling contact with the bottom wall of the mounting groove 33, and the friction force between the first gear 31 and the mounting groove 33 is greatly reduced. When the gear upward movement, the lateral wall of gear is inconsistent with the diapire of surrounding edge, has avoided first gear 31 to break away from mounting groove 33 under the drive of connecting rod 22, has guaranteed that first gear 31 meshes with first rack 32 mutually all the time, makes to attract sign 1 at arbitrary height, all can realize deflecting, the effectual practicality that has improved and has called the mark device.

As shown in fig. 1, fig. 4 and fig. 5, four support rods 8 are fixedly arranged on the bottom wall of the base 2, a support wheel 81 is rotatably arranged on the bottom wall of each support rod 8, a third accommodating groove 9 is formed in each support rod 8, two fixture blocks 91 are slidably arranged in the third accommodating groove 9, the two fixture blocks 91 are respectively arranged on two sides of the support wheel 81, an elastic member 92 used for driving the two fixture blocks 91 to move towards directions away from each other is arranged in the third accommodating groove 9, the elastic member 92 is a pressure spring, one end of the pressure spring is fixedly connected with the side wall of one fixture block 91, and the other end of the pressure spring is fixedly connected with the side wall of the.

As shown in fig. 4 and 5, two supporting blocks 82 are slidably disposed on the side wall of the supporting rod 8, the two supporting blocks 82 are disposed by taking the supporting rod 8 as an axis symmetry, the supporting block 82 is shaped like a right triangle, a longer side of the right triangle is close to the side wall of the supporting rod 8, a shorter side of the right triangle is close to the ground, a strip-shaped hole 83 communicated with the third accommodating groove 9 is formed in the side wall of the supporting rod 8 along the vertical direction, a connecting block 84 is slidably disposed in the strip-shaped hole 83, one end of the connecting block 84 is fixedly connected with the clamping block 91, the other end of the connecting block is fixedly connected with the supporting block 82, a first clamping tooth 93 is fixedly disposed on the side wall of the clamping block 91 close to the supporting block 82, and a second clamping tooth 94. The bottom wall of the supporting block 82 is fixedly provided with anti-skid grains 85.

When the bidding device is used, the supporting wheel 81 arranged in the third accommodating groove 9 is rotated, so that the whole bidding device is convenient to carry, the two supporting blocks 82 move towards the direction of approaching each other in the horizontal direction, the two supporting blocks 82 drive the clamping blocks 91 to approach each other through the connecting block 84, the two clamping blocks 91 extrude the elastic part 92, so that the elastic part 92 stores elastic potential energy, then the supporting blocks 82 vertically slide downwards, the supporting blocks 82 drive the clamping blocks 91 to move downwards through the connecting block 84, when the bottom wall of the supporting blocks 82 is contacted with the ground, the supporting blocks 82 are loosened, the clamping blocks 91 move towards the direction of separating from each other under the driving of the elastic part 92, the first clamping teeth 93 arranged on the clamping blocks are meshed with the second clamping teeth 94, so that the position of the first clamping teeth 93 is fixed, and then the position of the supporting blocks 82 is fixed, the sliding friction is changed into rolling friction through the supporting wheel 81, and the friction force is, the carrying is convenient, the supporting block 82 is used, when the bidding device arrives at a designated place, the friction force between the bidding device and the ground is improved, and the deviation of the position of the bidding device caused by artificial error touch is avoided to a certain extent.

The specific operation process comprises the following steps:

start first motor 41, first motor 41 drives lead screw 42 and rotates, lead screw 42 drives slider 35 and moves in spout 34, slider 35 drives first rack 32 and then drives gear revolve, the gear drives connecting rod 22 and rotates, finally drive signboard 1 and deflect around the axis of connecting rod 22, an orientation for adjusting signboard 1, start second motor 53, second motor 53 drives worm 62 and rotates and then drives worm wheel 61 and rotate, worm wheel 61 drives coaxial fixed second gear 51 and rotates, second gear 51's second rack 52 moves and drives connecting rod 22 up-and-down motion in vertical direction, finally drive signboard 1 and move in vertical direction, a height for adjusting signboard 1, can adapt to different signboard environment, the effectual result of use that improves signboard 1, the suitability is improved.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides an electron is beckoned mark device based on internet, is beckoned mark board (1) and base (2) including beckoned mark board (1), beckoned mark board (1) sets up on base (2), its characterized in that: first holding tank (21) have been seted up along vertical direction on the roof of base (2), first holding tank (21) internal rotation is provided with connecting rod (22), it sets up on connecting rod (22) to attract sign (1) fixed, be provided with on connecting rod (22) and base (2) and be used for ordering about deflecting subassembly (3) that attract sign (1) deflected around the axis of connecting rod (22), be provided with on connecting rod (22) and be used for ordering about connecting rod (22) along vertical direction lift assembly (5) that slides from top to bottom in first holding tank (21).

2. An internet-based electronic bidding device according to claim 1, wherein: the deflection assembly (3) comprises a first gear (31) and a first rack (32), the first gear (31) is sleeved on the connecting rod (22) in a sliding mode along the vertical direction, a mounting groove (33) communicated with the first accommodating groove (21) is formed in the top wall of the base (2), the first gear (31) is rotatably arranged in the mounting groove (33), a clamping key (23) is fixedly arranged on the connecting rod (22) along the axial direction of the connecting rod (22), and a key groove (24) for inserting the clamping key (23) is formed in the side wall of the first gear (31);

the top wall of base (2) is seted up spout (34) that link up with mounting groove (33), the length direction slip of following spout (34) in spout (34) is provided with slider (35), the fixed first rack (32) that is provided with on slider (35), first rack (32) and first gear (31) meshing, be provided with on base (2) and be used for driving about slider (35) and do reciprocating motion along the length direction of spout (34) drive assembly (4).

3. An internet-based electronic bidding device according to claim 2, wherein: the driving assembly (4) comprises a first motor (41) and a lead screw (42), the lead screw (42) is rotatably arranged in the sliding groove (34) along the length direction of the sliding groove (34), the first motor (41) is fixedly arranged on the base (2), an output shaft of the first motor (41) is fixedly connected with the lead screw (42) in a coaxial mode, and the sliding block (35) is sleeved on the lead screw (42) in a threaded mode.

4. An internet-based electronic bidding device according to claim 2, wherein: lifting unit (5) include second gear (51), second rack (52) and second motor (53), the one end that connecting rod (22) are located first holding tank (21) is rotated the cover and is equipped with and is rotated cover (54), it is provided with second rack (52) to rotate cover (54) and go up along vertical direction fixed, second holding tank (55) with first holding tank (21) intercommunication have been seted up in base (2), the internal rotation of second holding tank (55) is provided with second gear (51), second gear (51) and second rack (52) meshing, the fixed diapire that sets up in second holding tank (55) of second motor (53), second motor (53) are connected with second gear (51) transmission, be provided with anticreep portion (7) that are used for preventing that first gear (31) break away from on base (2).

5. An internet-based electronic bidding device according to claim 4, wherein: a transmission rod (6) coaxially penetrates through the second gear (51), a worm wheel (61) is coaxially and fixedly sleeved on the transmission rod (6), a worm (62) is coaxially and fixedly connected with an output shaft of the second motor (53), and the worm wheel (61) is meshed with the worm (62).

6. An internet-based electronic bidding device according to claim 4, wherein: anticreep portion (7) include the clamping ring, the clamping ring sets up the notch department at mounting groove (33), be provided with ball (71) with the diapire rolling contact of mounting groove (33) on first gear (31).

7. An internet-based electronic bidding device according to claim 1, wherein: the bottom wall of the base (2) is fixedly provided with a plurality of supporting rods (8), the bottom wall of each supporting rod (8) is rotatably provided with a supporting wheel (81), a third accommodating groove (9) is formed in each supporting rod (8), two clamping blocks (91) are arranged in the third accommodating groove (9) in a sliding manner, the two clamping blocks (91) are respectively arranged on two sides of the supporting wheel (81), and an elastic piece (92) for driving the two clamping blocks (91) to move towards the direction away from each other is arranged in the third accommodating groove (9);

the utility model discloses a support structure for fixing the clamping block, including bracing piece (8), be provided with supporting shoe (82) on the lateral wall of bracing piece (8) in a sliding manner, set up bar hole (83) with third holding tank (9) intercommunication along vertical direction on the lateral wall of bracing piece (8), it is provided with connecting block (84) to slide in bar hole (83), the one end and fixture block (91) fixed connection of connecting block (84), the other end and supporting shoe (82) fixed connection, fixture block (91) are close to and are fixed on the lateral wall of supporting shoe (82) and are provided with first latch (93), fixed be provided with on the lateral wall of third holding tank (9) with second latch (94) of first latch (93) joint in order to fix fixture block (91) position.

8. An internet-based electronic bidding device according to claim 7, wherein: and anti-skid grains (85) are fixedly arranged on the bottom wall of the supporting block (82).