CN211256764U - Automatic lifting column for traffic - Google Patents

Automatic lifting column for traffic Download PDF

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Publication number
CN211256764U
CN211256764U CN201921424011.7U CN201921424011U CN211256764U CN 211256764 U CN211256764 U CN 211256764U CN 201921424011 U CN201921424011 U CN 201921424011U CN 211256764 U CN211256764 U CN 211256764U
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CN
China
Prior art keywords
lifting
seat
rod
welded
fixed
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Expired - Fee Related
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CN201921424011.7U
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Chinese (zh)
Inventor
卢波的
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Tianjin Yixinjiahe Technology Co ltd
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Tianjin Yixinjiahe Technology Co ltd
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Priority to CN201921424011.7U priority Critical patent/CN211256764U/en
Application granted granted Critical
Publication of CN211256764U publication Critical patent/CN211256764U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model provides an automatic lifting column is used in traffic, including ground, recess, first lift seat, deep groove ball bearing, the rotating tube, elevator motor, first bracing piece can seal the sliding support seat structure, but the socket structure can be fixed to liftable suggestion post structure, screwed pipe and fixed orifices, the fixed orifices set up in the suitable position of upside on ground. The utility model discloses the setting of warning board, warning light, reflection of light strip and lift post is favorable to reminding people to pay attention to in the course of work, prevents to collide the lift post and increases prompt facility; the arrangement of the fixed seat, the second insertion rod, the threaded rod, the connecting rod and the lifting ring is beneficial to the installation and fixation of the fixed seat and convenient for the installation and fixation; the setting of second lift seat, closing plate and sealed piece is favorable to sealed second lift seat and fixed orifices at the in-process that the lift post reciprocated, prevents that the rainwater from flowing into the inside of fixed orifices, increases sealed effect.

Description

Automatic lifting column for traffic
Technical Field
The utility model belongs to the technical field of the lift post, especially, relate to an automatic lift post is used in traffic.
Background
The quantity of automobile reserves of the society is continuously increased at present, and the parking demand is also continuously increased, and a lot of buildings or outdoor parking area dispose parking stall not enough to lead to a lot of private parking stalls to be taken up at will, but the former car owner of parking stall can't park.
But current lift post still has not possess the warning function at the in-process that uses, and the in-process that is inconvenient to carry out installation work and use does not possess the problem of sealed function.
Therefore, it is necessary to invent an automatic lifting column for transportation.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides an automatic lifting column is used in traffic to solve current lifting column and still having the in-process that uses and do not possess the warning function, the inconvenient in-process that carries out the installation work and use does not possess the problem of sealed function. An automatic lifting column for traffic comprises a ground, a groove, a first lifting seat, a deep groove ball bearing, a rotary tube, a lifting motor, a first supporting rod, a sealable sliding supporting seat structure, a lifting prompt column structure, a fixable inserting seat structure, a threaded tube and a fixed hole, wherein the fixed hole is formed in a proper position on the upper side of the ground; the grooves are respectively formed in the left side and the right side of the upper end of the fixing hole; the first lifting seat is arranged at the upper end of the fixable inserting seat structure; the deep groove ball bearing is embedded in the middle position inside the first lifting seat; the rotating pipe penetrates through the inner wall of the deep groove ball bearing; the lifting motor is connected to the middle position of the upper end of the first lifting seat through a bolt; the rotating pipe is connected to an output shaft of the lifting motor through a key; the first supporting rods are respectively connected to the left side and the right side of the upper end of the first lifting seat through bolts; the sealable sliding support seat structure is arranged at the upper end of the first support rod; the lifting prompt post structure is arranged at the upper end of the sealable sliding support seat structure; the fixable inserting seat structure is arranged in the middle of the bottom end inside the fixing hole; the lower end of the rotating pipe is welded at the middle position of the upper end of the threaded pipe; the threaded pipe is arranged at the upper end of the fixable inserting seat structure; the sealable sliding support seat structure comprises a second lifting seat, a support tube, a sealing plate, a sealing block, a control box, a PLC and a wireless transceiver module, wherein the lower end of the support tube is welded on the left side and the right side of the upper end of the second lifting seat respectively; the sealing plates are respectively connected to the upper part of the front surface and the upper part of the rear surface of the second lifting seat through screws; the sealing blocks are respectively glued on the left side and the right side of the second lifting seat; the control box is connected to the middle position of the right side of the lower end of the second lifting seat through a bolt; the PLC screw is connected to the middle position of the upper part of the front surface of the control box; the wireless transceiver module is connected to the middle position of the lower part of the front surface of the control box through a screw.
Preferably, the lifting prompt post structure comprises a fixed rod, a first plug-in rod, a prompt board, a warning lamp, a reflective strip and a lifting post, wherein the upper end of the first plug-in rod is respectively welded at the left side and the right side of the lower end of the fixed rod; the lifting column is sequentially welded at the lower end of the fixed rod from left to right; the prompting plate is connected to the upper part of the front surface of the lifting column through a bolt; the reflective strips are glued on the lower part of the front surface of the prompt board.
Preferably, the fixable inserting seat structure comprises a fixed seat, a second inserting rod, a threaded rod, a connecting rod, a lifting ring and a second supporting rod, wherein the second inserting rod is welded at four corners of the lower end of the fixed seat respectively; the lower end of the threaded rod is welded in the middle of the upper end of the fixed seat; the lower ends of the connecting rods are respectively welded at the middle positions of the left side and the right side of the upper end of the fixed seat; the lifting rings are respectively welded at the upper ends of the connecting rods; the second support rods are respectively welded at the left side and the right side of the upper end of the fixing seat.
Preferably, the sealing plate is a PPC plate; the sealing block adopts a silica gel block; the control box adopts a stainless steel box.
Preferably, the inner ring of the deep groove ball bearing is in interference fit with the outer wall of the rotating pipe; the bottom of the groove is respectively connected with a silica gel pad in a gluing way.
Preferably, the upper ends of the first supporting rods are respectively welded at the left side and the right side of the lower end of the second lifting seat; the control box is arranged on the right side of the lifting motor.
Preferably, the prompting board is a stainless steel plate with a paint layer coated on the surface, and a prompting word is written on the surface of the prompting board; the fixed rod adopts a stainless steel rod with the upper end set to be arc-shaped.
Preferably, the lower ends of the first inserting rods are respectively inserted in the middle of the inner part of the upper side of the supporting tube; the lifting column is arranged between the supporting tubes; two ends of the fixed rod are inserted into the upper side of the groove.
Preferably, the second plug rod is a conical stainless steel rod; the second supporting rods are respectively arranged at the left side and the right side of the connecting rod; the threaded rod is arranged between the connecting rods.
Preferably, the threaded pipe is in threaded connection with the outer wall of the threaded rod; the upper end of the second supporting rod is respectively contacted with the left side and the right side of the lower end of the first lifting seat.
Preferably, the PLC is a PLC with the model number of FX 2N-48; the wireless transceiver module is a transceiver module with model number JF 24E-TX; the lifting motor is a forward and reverse rotating motor with the model number of YE 2; the warning lamp is specifically an AB-SU310A warning lamp.
Preferably, the wireless transceiver module is electrically connected to the PLC.
Preferably, the lifting motor is electrically connected with the output end of the PLC.
Preferably, the warning light is electrically connected with the output end of the PLC.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses in, the setting of notice board, warning light, reflection of light strip and lift post, be favorable to reminding people to notice at the in-process of work, prevent that collision lift post increases prompt facility.
2. The utility model discloses in, fixing base, second peg graft pole, the threaded rod, the setting of connecting rod and pulling ring is favorable to carrying out fixing base installation and fixed work, conveniently sets up installation work.
3. The utility model discloses in, the second lift seat, the setting of closing plate and sealed piece is favorable to the sealed second lift seat of in-process and the fixed orifices that reciprocate at the lift post, prevents that the rainwater from flowing into the inside of fixed orifices, increases sealed effect.
4. The utility model discloses in, dead lever, first inserted bar, the lift post, the setting of mutually supporting of second lift seat and stay tube is favorable to carrying out lift post installation work, conveniently carries out lift post installation work.
5. The utility model discloses in, elevator motor, PLC and wireless transceiver module's setting, be favorable to sending signals for wireless transceiver module through external equipment then through wireless transceiver module signal transmission to PLC, through PLC control elevator motor work, realize the automatic rising function.
6. The utility model discloses in, first lift seat, the setting of mutually supporting of first bracing piece and second lift seat is favorable to protecting elevator motor and control box, increases safeguard function.
7. The utility model discloses in, ground, the setting of mutually supporting of recess and dead lever is favorable to making things convenient for the vehicle to pass through at the in-process that uses, prevents that the lift post from damaging the vehicle and increasing safeguard function.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of the sealable sliding support seat structure of the present invention.
Fig. 3 is a schematic structural diagram of the liftable indication column structure of the present invention.
Fig. 4 is a schematic structural diagram of the fixable socket structure of the present invention.
Fig. 5 is a schematic diagram of the electrical connection of the present invention.
In the figure:
1. a ground surface; 2. a groove; 3. a first lifting seat; 4. a deep groove ball bearing; 5. rotating the tube; 6. A lifting motor; 7. a first support bar; 8. the sliding support seat structure can be sealed; 81. a second lifting seat; 82. Supporting a tube; 83. a sealing plate; 84. a sealing block; 85. a control box; 86. a PLC; 87. a wireless transceiver module; 9. a lifting prompt post structure; 91. fixing the rod; 92. a first plug-in rod; 93. a prompt board; 94. a warning light; 95. a light-reflecting strip; 96. a lifting column; 10. the structure of the plug socket can be fixed; 101. a fixed seat; 102. a second plug-in rod; 103. a threaded rod; 104. a connecting rod; 105. lifting the ring; 106. a second support bar; 11. A threaded pipe; 12. and (7) fixing holes.
Detailed Description
The utility model is described in detail with reference to the accompanying drawings, as shown in fig. 1 and fig. 2, an automatic lifting column for traffic comprises a ground 1, a groove 2, a first lifting seat 3, a deep groove ball bearing 4, a rotating tube 5, a lifting motor 6, a first supporting rod 7, a sealable sliding supporting seat structure 8, a lifting indication column structure 9, a fixable inserting seat structure 10, a threaded tube 11 and a fixed hole 12, wherein the fixed hole 12 is arranged at a proper position on the upper side of the ground 1; the grooves 2 are respectively arranged at the left side and the right side of the upper end of the fixing hole 12; the first lifting seat 3 is arranged at the upper end of the fixable socket structure 10; the deep groove ball bearing 4 is embedded in the middle position inside the first lifting seat 3; the rotating pipe 5 penetrates through the inner wall of the deep groove ball bearing 4; the lifting motor 6 is connected with the middle position of the upper end of the first lifting seat 3 through a bolt; the rotating pipe 5 is connected with an output shaft of the lifting motor 6 in a key way; the first supporting rods 7 are respectively connected to the left side and the right side of the upper end of the first lifting seat 3 through bolts; the sealable sliding support seat structure 8 is arranged at the upper end of the first support rod 7; the lifting prompt post structure 9 is arranged at the upper end of the sealable sliding support seat structure 8; the fixable socket structure 10 is arranged in the middle of the bottom end inside the fixing hole 12; the lower end of the rotating pipe 5 is welded at the middle position of the upper end of the threaded pipe 11; the threaded pipe 11 is arranged at the upper end of the fixable inserting seat structure 10; the sealable sliding support seat structure 8 comprises a second lifting seat 81, a support tube 82, a sealing plate 83, a sealing block 84, a control box 85, a PLC86 and a wireless transceiver module 87, wherein the lower end of the support tube 82 is welded on the left side and the right side of the upper end of the second lifting seat 81 respectively; the sealing plate 83 is respectively screwed on the upper part of the front surface and the upper part of the rear surface of the second lifting seat 81; the sealing blocks 84 are respectively glued on the left side and the right side of the second lifting seat 81; the control box 85 is connected to the middle position of the right side of the lower end of the second lifting seat 81 through a bolt; the PLC86 is in screw connection with the middle position of the upper part of the front surface of the control box 85; the wireless transceiver module 87 is connected to the middle position of the lower part of the front surface of the control box 85 through a screw; the PLC86 is used for controlling the rotation of the lifting motor 6 during the working process, so that the lifting height of the threaded pipe 11 is controlled, the threaded pipe 11 is prevented from falling off to influence the working process, and meanwhile, the second lifting seat 81 and the first lifting seat 3 are prevented from contacting and damaging the lifting equipment through the first supporting rod 7 during the working process.
In this embodiment, as shown in fig. 3, the lifting/lowering indication post structure 9 includes a fixing rod 91, a first inserting rod 92, an indication plate 93, a warning light 94, a reflective strip 95 and a lifting post 96, wherein the upper end of the first inserting rod 92 is welded to the left and right sides of the lower end of the fixing rod 91; the lifting column 96 is sequentially welded at the lower end of the fixing rod 91 from left to right; the prompting plate 93 is connected to the upper part of the front surface of the lifting column 96 through bolts; the reflective strips 95 are glued to the lower part of the front surface of the prompt board 93; then, the fixing rod 91 is lifted to enable the first inserting rod 92 to be inserted into the inner wall of the supporting tube 82, when the device is used, a remote control device arranged outside sends a signal to enable the wireless transceiver module 87 to transmit and receive the signal to be conveyed to the PLC86, then the PLC86 controls the lifting motor 6 to rotate forwards and backwards in the working process to drive the threaded tube 11 to rotate, and the threaded tube 11 moves up and down to drive the lifting column 96 to complete automatic lifting work in the rotating process.
In this embodiment, referring to fig. 4, the fixable socket structure 10 includes a fixing base 101, a second socket rod 102, a threaded rod 103, a connecting rod 104, a pulling ring 105 and a second supporting rod 106, wherein the second socket rod 102 is welded at four corners of the lower end of the fixing base 101; the lower end of the threaded rod 103 is welded in the middle of the upper end of the fixed seat 101; the lower ends of the connecting rods 104 are respectively welded at the middle positions of the left side and the right side of the upper end of the fixed seat 101; the lifting rings 105 are respectively welded at the upper ends of the connecting rods 104; the second support rods 106 are respectively welded at the left side and the right side of the upper end of the fixed seat 101; when using, set up fixed orifices 12 in suitable position, use second peg graft pole 102 to peg graft at fixed orifices 12 bottom intermediate position, fix fixing base 101, conveniently carry out the installation work, then to the upper end outer wall of screwed pipe 11 threaded connection at threaded rod 103, switch on external power source, through wireless transceiver module 87 receiving and dispatching signal, then control elevator motor 6 through PLC86 and begin work, drive screwed pipe 11 and rotate, accomplish the installation.
In this embodiment, specifically, the sealing plate 83 is a PPC plate; the sealing block 84 is a silica gel block; the control box 85 is a stainless steel box.
In this embodiment, specifically, the inner ring of the deep groove ball bearing 4 is in interference fit with the outer wall of the rotating pipe 5; the bottom of the groove 2 is respectively glued with a silica gel pad.
In this embodiment, specifically, the upper ends of the first support rods 7 are respectively welded to the left and right sides of the lower end of the second lifting seat 81; the control box 85 is arranged on the right side of the lifting motor 6.
In this embodiment, specifically, the indication plate 93 is a stainless steel plate with a paint layer coated on the surface thereof, and a prompt is written on the surface of the indication plate 93; the fixing rod 91 is a stainless steel rod with an arc-shaped upper end.
In this embodiment, specifically, the lower ends of the first inserting rods 92 are respectively inserted into the middle positions of the upper inner part of the supporting tube 82; the lifting columns 96 are disposed between the support tubes 82; the two ends of the fixing rod 91 are inserted into the upper side of the groove 2.
In this embodiment, specifically, the second insertion rod 102 is a conical stainless steel rod; the second support rods 106 are respectively arranged at the left side and the right side of the connecting rod 104; the threaded rod 103 is arranged between the connecting rods 104.
In this embodiment, specifically, the threaded tube 11 is screwed on the outer wall of the threaded rod 103; the upper end of the second support rod 106 is respectively contacted with the left side and the right side of the lower end of the first lifting seat 3.
In this embodiment, specifically, the PLC86 specifically uses a PLC with model number FX 2N-48; the wireless transceiver module 87 is a transceiver module with model number JF 24E-TX; the lifting motor 6 is a forward and reverse rotating motor with the model number of YE 2; the warning light 94 is specifically a warning light with the model AB-SU 310A.
In this embodiment, specifically, the wireless transceiver module 87 is electrically connected to the PLC 86.
In this embodiment, specifically, the lifting motor 6 is electrically connected to the output end of the PLC 86.
In this embodiment, specifically, the warning light 94 is electrically connected to the output end of the PLC 86.
Principle of operation
In the utility model, when in use, a fixed hole 12 is arranged at a proper position, a second inserting rod 102 is inserted at the middle position of the bottom of the fixed hole 12, a fixed seat 101 is fixed, the installation work is convenient, then a screwed pipe 11 is screwed on the outer wall of the upper end of a screwed rod 103, when an external power supply is switched on, signals are transmitted and received through a wireless transceiver module 87, then the PLC86 is used for controlling a lifting motor 6 to start working, the screwed pipe 11 is driven to rotate, the installation is completed, then a fixed rod 91 is lifted, a first inserting rod 92 is inserted on the inner wall of a supporting pipe 82, when in use, signals are sent through a remote control device arranged outside, the signals transmitted and received by the wireless transceiver module 87 are transmitted to a PLC86, then the PLC86 is used for controlling the lifting motor 6 to rotate forwards and reversely in the working process, the screwed pipe 11 is driven to rotate, the lifting column 96 is driven to complete the automatic lifting work by the lifting column, the PLC86 is used for controlling the rotation of the lifting motor 6 during the working process, so that the lifting height of the threaded pipe 11 is controlled, the threaded pipe 11 is prevented from falling off to influence the working process, and meanwhile, the second lifting seat 81 and the first lifting seat 3 are prevented from contacting and damaging the lifting equipment through the first supporting rod 7 during the working process.
Utilize technical scheme, or technical personnel in the field are in the utility model discloses under technical scheme's the inspiration, design similar technical scheme, and reach above-mentioned technological effect, all fall into the utility model discloses a protection scope.

Claims (10)

1. The automatic lifting column for the traffic is characterized by comprising a ground (1), a groove (2), a first lifting seat (3), a deep groove ball bearing (4), a rotating pipe (5), a lifting motor (6), a first supporting rod (7), a sealable sliding supporting seat structure (8), a lifting prompt column structure (9), a fixable inserting seat structure (10), a threaded pipe (11) and a fixing hole (12), wherein the fixing hole (12) is formed in a proper position on the upper side of the ground (1); the grooves (2) are respectively arranged at the left side and the right side of the upper end of the fixing hole (12); the first lifting seat (3) is arranged at the upper end of the fixable inserting seat structure (10); the deep groove ball bearing (4) is embedded in the middle position inside the first lifting seat (3); the rotating pipe (5) penetrates through the inner wall of the deep groove ball bearing (4); the lifting motor (6) is connected to the middle position of the upper end of the first lifting seat (3) through a bolt; the rotating pipe (5) is connected to an output shaft of the lifting motor (6) in a key way; the first supporting rods (7) are respectively connected to the left side and the right side of the upper end of the first lifting seat (3) through bolts; the sealable sliding support seat structure (8) is arranged at the upper end of the first support rod (7); the lifting prompt post structure (9) is arranged at the upper end of the sealable sliding support seat structure (8); the fixable inserting seat structure (10) is arranged in the middle of the bottom end inside the fixed hole (12); the lower end of the rotating pipe (5) is welded at the middle position of the upper end of the threaded pipe (11); the threaded pipe (11) is arranged at the upper end of the fixable inserting seat structure (10); the sealable sliding support seat structure (8) comprises a second lifting seat (81), a support tube (82), a sealing plate (83), a sealing block (84), a control box (85), a PLC (86) and a wireless transceiver module (87), wherein the lower end of the support tube (82) is welded on the left side and the right side of the upper end of the second lifting seat (81) respectively; the sealing plates (83) are respectively connected to the upper part of the front surface and the upper part of the rear surface of the second lifting seat (81) through screws; the sealing blocks (84) are respectively glued on the left side and the right side of the second lifting seat (81); the control box (85) is connected to the middle position of the right side of the lower end of the second lifting seat (81) through a bolt; the PLC (86) is connected to the middle position of the upper part of the front surface of the control box (85) through a screw; the wireless transceiver module (87) is connected to the middle position of the lower part of the front surface of the control box (85) through screws.
2. The automatic lifting pole for traffic as claimed in claim 1, wherein the lifting indication pole structure (9) comprises a fixed pole (91), a first plug-in pole (92), an indication plate (93), a warning light (94), a light reflecting strip (95) and a lifting pole (96), the upper end of the first plug-in pole (92) is respectively welded at the left and right sides of the lower end of the fixed pole (91); the lifting column (96) is sequentially welded at the lower end of the fixing rod (91) from left to right; the prompt plate (93) is connected to the upper part of the front surface of the lifting column (96) through bolts; the reflective strips (95) are glued to the lower part of the front surface of the prompt board (93).
3. The automatic lifting column for traffic use of claim 1, wherein the fixable socket structure (10) comprises a fixed seat (101), a second socket rod (102), a threaded rod (103), a connecting rod (104), a lifting ring (105) and a second support rod (106), the second socket rod (102) is welded at four corners of the lower end of the fixed seat (101); the lower end of the threaded rod (103) is welded in the middle position of the upper end of the fixed seat (101); the lower ends of the connecting rods (104) are respectively welded at the middle positions of the left side and the right side of the upper end of the fixed seat (101); the lifting rings (105) are respectively welded at the upper ends of the connecting rods (104); the second support rods (106) are respectively welded at the left side and the right side of the upper end of the fixed seat (101).
4. The automatic lifting column for traffic as claimed in claim 1, wherein said sealing plate (83) is a PPC plate; the sealing block (84) adopts a silica gel block; the control box (85) adopts a stainless steel box.
5. The automatic lifting column for traffic as claimed in claim 1, characterized in that the inner ring of the deep groove ball bearing (4) is in interference fit with the outer wall of the rotary tube (5); the bottom ends of the grooves (2) are respectively connected with a silica gel pad in an adhesive mode.
6. The automatic lifting column for traffic use according to claim 1, wherein the upper end of the first supporting rod (7) is welded to the left and right sides of the lower end of the second lifting seat (81), respectively; the control box (85) is arranged on the right side of the lifting motor (6).
7. The automatic lifting column for traffic as claimed in claim 2, wherein the indication plate (93) is a stainless steel plate coated with a paint layer and the indication words are written on the surface of the indication plate (93); the fixed rod (91) adopts a stainless steel rod with the upper end set to be arc-shaped.
8. The automatic lifting column for traffic use as claimed in claim 2, wherein the lower ends of the first inserting rods (92) are respectively inserted at the middle positions inside the upper side of the support tube (82); the lifting columns (96) are arranged between the supporting pipes (82); two ends of the fixing rod (91) are inserted into the upper side of the groove (2).
9. A vehicular automatic lifting column according to claim 3, characterized in that the second plug-in rod (102) is a tapered stainless steel rod; the second support rods (106) are respectively arranged at the left side and the right side of the connecting rod (104); the threaded rod (103) is arranged between the connecting rods (104).
10. A vehicular automatic lifting column according to claim 3, characterized in that the threaded pipe (11) is screwed to the outer wall of the threaded rod (103); the upper end of the second supporting rod (106) is respectively contacted with the left side and the right side of the lower end of the first lifting seat (3).
CN201921424011.7U 2019-08-29 2019-08-29 Automatic lifting column for traffic Expired - Fee Related CN211256764U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921424011.7U CN211256764U (en) 2019-08-29 2019-08-29 Automatic lifting column for traffic

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921424011.7U CN211256764U (en) 2019-08-29 2019-08-29 Automatic lifting column for traffic

Publications (1)

Publication Number Publication Date
CN211256764U true CN211256764U (en) 2020-08-14

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921424011.7U Expired - Fee Related CN211256764U (en) 2019-08-29 2019-08-29 Automatic lifting column for traffic

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CN (1) CN211256764U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112342959A (en) * 2020-11-06 2021-02-09 山东大成电子科技有限公司 Multifunctional campus information safety monitoring system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112342959A (en) * 2020-11-06 2021-02-09 山东大成电子科技有限公司 Multifunctional campus information safety monitoring system

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Granted publication date: 20200814