CN209775155U - Concrete prefab compounding device - Google Patents
Concrete prefab compounding device Download PDFInfo
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- CN209775155U CN209775155U CN201920127668.0U CN201920127668U CN209775155U CN 209775155 U CN209775155 U CN 209775155U CN 201920127668 U CN201920127668 U CN 201920127668U CN 209775155 U CN209775155 U CN 209775155U
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- hopper
- conveyer belt
- storage
- guide rail
- storage hopper
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Abstract
The utility model particularly relates to a concrete prefab compounding device. The device includes a plurality of storage hoppers one, storage hopper below is provided with the conveyer belt one that can carry the material in the storage hopper one, the unloading end of conveyer belt one is provided with weighing hopper one, weighing hopper below is provided with the storage hopper two, but weighing hopper two below is provided with reciprocating motion's conveyer belt two, the below at two ends of conveyer belt is provided with the lifting machine respectively, the unloading end of lifting machine is provided with the mixer, be provided with the water tank of water storage and the weighing hopper two that is used for measuring cement respectively directly over the mixer, the feed opening department of mixer is provided with reciprocating motion's conveyer belt three, the one end of conveyer belt three stretches into inside the workshop, the below of the other end is provided with conveyer belt four, the discharge end of conveyer belt four stretches into in another workshop. The device can meet the production requirements of various products, occupies small area, has high batching efficiency and makes full use of all devices.
Description
Technical Field
The utility model relates to a concrete prefab production facility technical field, concretely relates to concrete prefab compounding device.
Background
The production process of the concrete prefabricated product in the prior art comprises the following steps: the concrete mixing method comprises the steps of model processing, concrete pouring, maintenance, demolding and the like, wherein materials need to be mixed before the concrete pouring, concrete raw materials mainly comprise cement, sand and broken stones, the proportion of the cement, the sand and the broken stones is adjusted according to different strength requirements, so that concrete mixed materials with different proportions are obtained, concrete prefabricated products such as electric poles, rabbet pipes and jacking pipes are produced, the concrete mixed materials comprise the steps of storing, weighing, stirring and the like, in the prior art, a production line comprising weighing and mixing is generally established for one product, the occupied area is large, at least one worker needs to carry out independent material mixing on each production line, and the material mixing efficiency is low.
SUMMERY OF THE UTILITY MODEL
To the problem, the utility model aims to provide a new concrete prefab compounding device, the device can satisfy the production demand and the area of multiple product simultaneously little, and the batching is efficient and each equipment has obtained abundant utilization.
The utility model discloses a following technical scheme realizes above-mentioned technical purpose:
The utility model provides a concrete prefab compounding device, including a plurality of storage hoppers one, storage hopper below is provided with the conveyer belt one that can carry material in the storage hopper one, the unloading end of conveyer belt one is provided with weighing hopper one, weighing hopper below is provided with storage hopper two, but two below of storage hopper are provided with reciprocating motion's conveyer belt two, the below at two both ends of conveyer belt is provided with the lifting machine respectively, the unloading end of lifting machine is provided with the mixer, be provided with the water tank of water storage respectively directly over the mixer and be used for measuring weighing hopper two of cement, but the unloading department of mixer is provided with reciprocating motion's conveyer belt three, but the one end of conveyer belt three stretches into inside the workshop, the below of the other end is provided with conveyer belt four, the discharge end of conveyer belt four stretches into in another workshop.
Preferably, two storage hoppers are arranged in parallel; a slide rail is arranged below the first metering hopper, the upper end edges of the two second storage hoppers are fixedly arranged on the same slide block, a first chain wheel and a second chain wheel are respectively arranged at two ends of the slide rail, two ends of a chain are respectively fixedly arranged at the left end and the right end of the slide block, the chain sequentially bypasses the first chain wheel and the second chain wheel, and the second chain wheel is driven to rotate by a forward and reverse rotating motor; the lower end of the sliding rail is also provided with a proximity switch, one of the storage hoppers is located under a feeding port of the weighing hopper when the weighing hopper is used for feeding, and the proximity switch and the forward and reverse rotating motor are connected with the controller.
The two proximity switches are arranged in parallel, the two storage hoppers are provided with induction blocks, the horizontal distance between the two proximity switches is the same as the horizontal distance between the induction blocks on the two storage hoppers, and one of the proximity switches is positioned below the first weighing hopper; the upper end edge of the second storage hopper is provided with an outward flange, the second storage hopper is hung on the sliding block through the flange, the opening of the second storage hopper faces upwards, and a pressure sensor is arranged below the sliding block, which is located on the flange, and is connected with the controller.
Preferably, storage hopper one is upper end open-ended infundibulate structure, and storage hopper one is fixed the setting in the top of same mount side by side, and a fixed setting at the both ends of this mount of conveyer belt one, and a fixed setting of weighing hopper is between two conveyer belts one, and the four corners of weighing hopper one is hung through wire rope and is established on this mount, is provided with the sensor that is used for weighing on the wire rope.
Preferably, the hoister comprises a guide rail, a material conveying trolley, a steel wire rope and a winch, the winch drives the material conveying trolley to slide along the guide rail through the steel wire rope, the guide rail comprises an inclined guide rail which is obliquely arranged, a transverse guide rail is communicated and arranged at the upper part of the inclined guide rail and higher than the top of the stirrer, and a fixed pulley is arranged at the top of the inclined guide rail; the material transporting trolley comprises a hopper, the bottom of the hopper is a bottom plate which is rotatably arranged below the inside of the hopper, one end of the bottom plate, extending out of the hopper, is provided with a first roller, two rollers are arranged on two sides of the outer wall of the bottom of the hopper, three rollers are arranged on two sides of the outer wall of the upper portion of the hopper, the oblique guide rail is of an oblique U-shaped structure, the first roller and the third rollers slide along the inside of the oblique rail, a fixed point of a steel wire rope on the hopper is lower than the horizontal height of the third roller, the second roller slides along the outside of the oblique rail, the material transporting trolley enters the transverse guide rail when ascending to the position of the transverse guide rail, and materials.
Specifically, two fixed pulleys are arranged on the outer wall between the guide rails above the hopper in parallel, the fixed pulleys are also arranged at the top of the guide rails, one end of a steel wire rope is fixed above the guide rails, the other end of the steel wire rope sequentially bypasses the fixed pulleys on the hopper and the fixed pulleys above the guide rails to be connected with a winch, and the winch is connected with the controller.
Preferably, baffles are arranged on two sides of the position, located at the feeding port of the stirrer, above the third conveying belt, a material guide plate is arranged on a discharging port, located above the fourth conveying belt, of the third conveying belt, the material guide plate is of a V-shaped structure, one end of the V-shaped structure is fixedly arranged on a rack of the third conveying belt and clings to the third conveying belt, and the other end of the V-shaped structure is located right above the fourth conveying belt.
The utility model provides a concrete prefab compounding device, can once only after once measure the completion should criticize the material that needs through the lifting machine promotion temporarily store in storage hopper two to finally once only accomplish the material loading through the lifting machine, can reduce the time of batching, reduce the operation number of times of lifting machine; weighing system can correspond two stirring feed proportioning systems simultaneously, and a stirring feed proportioning system can carry out the feed to two workshops simultaneously, and the production system in four workshops only needs to use two sets of stirring feed proportioning systems and one set of measurement system in other words, has optimized workshop feed proportioning system and can not influence the normal production in workshop, and each rate of equipment utilization is high, and the production line area of same volume diminishes, reduces the cost of enterprises.
Drawings
fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the storage hopper II sliding on the slide rail;
Fig. 3 is a schematic structural diagram of the hoist;
FIG. 4 is a schematic structural view of a material conveying trolley;
FIG. 5 is a schematic diagram of the material structure of the elevator;
FIG. 6 is a schematic top view of a third conveyor belt and a fourth conveyor belt;
In the figure, 1, a first storage hopper, a first conveying belt, a first measuring hopper, a 4 sliding rail, a second storage hopper, a second conveying belt, a 6 conveying belt, a 7 hoister, an 8 stirring machine, a second measuring hopper, a 9 conveying belt, a third conveying belt, a fourth conveying belt, a 11 conveying belt, a 12 material guide plate, a 13 baffle, a 41 sliding block, a first chain wheel 42, a second chain wheel 43, a slant guide rail 71, a 72 transverse guide rail, a 73 material conveying trolley, a 74 winch, a 731 hopper, a 732 bottom plate, a first roller 733, a 734 roller two, a third roller 735 and a 736 fixed pulley.
Detailed Description
In order to make the structure and principle of the present invention more clearly understood, the present invention is described in detail below with reference to the accompanying drawings and the detailed description:
As shown in figure 1, a concrete prefabricated product mixing device comprises a plurality of storage hoppers I1, wherein a first conveying belt 2 capable of conveying materials in the storage hoppers I1 is arranged below the storage hoppers I1, a first weighing hopper 3 is arranged at the discharging end of the first conveying belt 2, a second storage hopper 5 is arranged below the first weighing hopper 3, a second conveying belt 6 capable of reciprocating is arranged below the second storage hopper 5, namely the second conveying belt 6 is driven by a forward and reverse motor to rotate and can convey the materials in two directions, lifting machines 7 are respectively arranged below two ends of the second conveying belt 6, the falling materials are conveyed by the second conveying belt 6 into the lifting machines 7, a stirring machine 8 is arranged at the discharging end of the lifting machines 7, a water tank for storing water and a second weighing hopper 9 for weighing cement are respectively arranged right above the stirring machine 8, a third conveying belt 10 capable of reciprocating is arranged at the discharging port of the stirring machine 8, one end of the third conveying belt 10 extends into the workshop, a fourth conveying belt 11 is arranged below the other end of the third conveying belt, and the discharge end of the fourth conveying belt 11 extends into the other workshop.
The utility model discloses a theory of operation does: the method comprises the steps that materials such as crushed stones and sand in a storage hopper 1 enter a metering hopper 3 through a conveyor belt 2, the materials are metered according to proportioning requirements, the metered crushed stones and sand sequentially enter a storage hopper II 5 to be temporarily stored, the materials are added into the storage hopper II 5 after the crushed stones and sand required by the same batch are metered, the storage hopper II 5 discharges the materials, the materials are transferred to a corresponding lifting machine 7 through a conveyor belt II 6, the materials are stirred and proportioned sequentially through a stirrer 8, the mixed concrete falls onto a conveyor belt III 10, when the materials need to be conveyed to a workshop into which the conveyor belt III 10 extends, the conveyor belt III 10 rotates forwards to convey the mixed concrete to the workshop into which the conveyor belt III 10 extends, when the materials need to be conveyed to the workshop into which the conveyor belt IV 11 extends, the conveyor belt III 10 rotates backwards, the materials fall into the conveyor belt IV 11 from the other end of the conveyor belt III 10, and a fourth conveying belt 11 conveys materials to the workshop. The utility model can temporarily store the batch of materials to be lifted by the lifting machine 7 in the second storage hopper 5 once after one-time metering is finished, and finally finish the feeding of the materials once by the lifting machine 7, thereby reducing the batching time and reducing the operation times of the lifting machine 7; weighing system can correspond two stirring feed proportioning systems simultaneously, and a stirring feed proportioning system can carry out the feed to two workshops simultaneously, and the production system in four workshops only needs to use two sets of stirring feed proportioning systems and one set of measurement system in other words, has optimized workshop feed proportioning system and can not influence the normal production in workshop, and each rate of equipment utilization is high, and the production line area of same volume diminishes, reduces the cost of enterprises.
In the embodiment, two storage hoppers 5 are arranged in parallel; a slide rail 4 is arranged below the first weighing hopper 3, the upper end edges of the two storage hoppers II 5 are fixedly arranged on the same slide block 41, a first chain wheel 42 and a second chain wheel 43 are respectively arranged at two ends of the slide rail 4, and the second chain wheel 43 is driven by a forward and reverse rotation motor to rotate, which can be seen in fig. 2 specifically; the lower end of the sliding rail 41 is also provided with a proximity switch for ensuring that one of the storage hoppers II is positioned under the feeding port of the first weighing hopper 3 when the first weighing hopper 5 feeds, and the proximity switch and the forward and reverse rotating motor are connected with the controller.
In the embodiment, two proximity switches (which can adopt photoelectric switches) are arranged in parallel, the outer wall of the second storage hopper 5 is provided with the sensing block, the horizontal distance between the two proximity switches is the same as the horizontal distance between the sensing blocks on the second storage hopper 5, and one of the proximity switches is positioned below the first weighing hopper 3; the upper end border of storage hopper two 5 is provided with outside flange, and storage hopper two 5 is hung through the flange and is established on slider 41 and the opening up, and slider 41 is located the below of flange and is provided with pressure sensor, and pressure sensor is connected with the controller, and pressure sensor's effect is used for whether having the material in the storage hopper two that correspond to the controller feedback, specifically say that there is the material in the storage hopper two that this pressure sensor corresponds when pressure signal that pressure sensor sensed surpasss certain threshold value promptly.
When the worker operates the controller to control the first weighing hopper 3 to discharge, the actions of the sliding block 41 and the ingredients are explained by taking the other proximity switch arranged on the left side below the weighing hopper as an example: when the two proximity switches have signals (namely the two storage hoppers are respectively positioned at the positions of the proximity switches), if materials exist in the two storage hoppers II (namely the signals of the two pressure sensors exceed the threshold value), the valve at the lower end of the first metering hopper 3 is not opened and the materials are not discharged, when the materials do not exist in the storage hopper at the right side (namely the signals of the pressure sensors at the right side do not exceed the threshold value), the controller controls the valve at the lower end of the first metering hopper 3 to be opened and the materials to be discharged and transfers the materials to a specified elevator through the second conveying belt 6, when the materials exist in the storage hopper at the right side, the controller firstly controls the forward and reverse motor to act to move the slide block to the right side and stop acting when the proximity switch at the right side senses the storage hopper II at the left side, and; when only the proximity switch on right side has the signal (when left storage hopper two are located the weighing hopper under one promptly), if all have the material in two storage hoppers, the weighing hopper is not moved, if there is not the material in the left storage hopper two, the weighing hopper is the unloading directly, if there is the material in the left storage hopper two, the controller control is just reversing motor and is rotated and drive the slider and remove to left and stop the action when left proximity switch senses left storage hopper when, controls weighing hopper one 3 simultaneously and carries out the unloading.
in the embodiment, the storage hopper 1 is a funnel-shaped structure with an opening at the upper end, and the purpose is to conveniently add materials into the storage hopper 1 by a forklift, the storage hopper 1 is fixedly arranged above the same fixing frame side by side, the conveying belts 2 are fixedly arranged at two ends of the fixing frame, the lower end of the storage hopper 1 is at a certain distance from the conveying belts 2 so as to facilitate the materials in the storage hopper 1 to smoothly fall on the conveying belts 2 and be conveyed through the conveying belts 2, the metering hopper 3 is fixedly arranged between the two conveying belts 2, four corners of the metering hopper 3 are hung on the fixing frame through steel wire ropes, sensors for weighing are arranged on the steel wire ropes, the metering hopper 3 carries out weighing and metering through four weighing sensors at four corners, after a certain material is metered, a controller controls the corresponding conveying belts 2 to stop rotating and supply the materials by analyzing information fed back by the weighing sensors, simultaneously, a valve below the first weighing hopper 3 is controlled to be opened to transfer the weighed materials to the second storage hopper 5, after the material is discharged, the valve is closed, the controller controls the first conveyor belt 2 for supplying another material to convey the material, the operation is repeated to complete the metering and transferring of the other material, after the preliminary batching at the position is completed, the controller controls the valve at the lower end of the second storage hopper 5 to be opened, the material in the second storage hopper 5 enters the second conveyor belt 6 and is transferred to the corresponding hoister 7 through the second conveyor belt 6, the material is transferred into the mixer by the elevator 7, the second weighing hopper 9 is controlled by the controller to add the weighed cement into the mixer, and meanwhile, the water tank is controlled to supply water quantitatively, after the stirring and mixing are finished, the controller controls the valve at the lower end of the stirrer 8 to be opened, the mixed concrete falls down to enter the third conveying belt 10, and the concrete enters a corresponding workshop through the third conveying belt 10 or the fourth conveying belt 11 as required.
In this embodiment, as shown in fig. 3, 4, and 5, the elevator 7 includes a guide rail, a material conveying trolley 73, a steel wire rope, and a winch 74, the winch 74 drives the material conveying trolley 73 to slide along the guide rail through the steel wire rope, the guide rail includes an inclined guide rail 71 that is obliquely arranged, a transverse guide rail 72 is disposed at a position above the inclined guide rail 71 and higher than the top of the mixer 8 in a communicating manner, and a fixed pulley is installed at the top of the inclined guide rail 71; the material conveying trolley 73 comprises a hopper 731, the bottom of the hopper 731 is a bottom plate 732 which is rotatably arranged below the hopper, namely, the middle of the left side and the right side of the bottom plate 732 is fixed on the hopper 731 through a rotating shaft, two sides (close to the front side of the guide rail) of one end of the bottom plate 732 extending out of the hopper 731 are provided with a roller 733, two sides of the outer wall of the bottom of the hopper 731 are provided with a roller 734, two sides of the upper outer wall of the hopper 731 are provided with a roller 735, the inclined guide rail 71 is in an inclined U-shaped structure, the roller 733 and the roller 735 slide along the inner part of the inclined guide rail 71, the fixed point of the steel wire rope on the hopper 731 is lower than the horizontal height of the roller 735 (namely, the fixed point of the steel wire rope on the hopper 731 is below the roller 735), the arrangement can prevent the roller 735 from entering the transverse guide rail 72, the roller 734 slides along the outer part of the inclined guide rail 71, and the conveying, hopper 731 continues to move upward under the action of the wire rope, bottom plate 732 rotates, and the material in hopper 731 enters mixer 8 along bottom plate 732 to complete the discharge.
Two fixed pulleys 736 are arranged on the outer wall between the guide rails above the hopper 731 in parallel, the fixed pulleys are also arranged on the top above the guide rails, one end of a steel wire rope is fixed above the guide rails, the other end of the steel wire rope sequentially bypasses the fixed pulleys on the hopper 731 and the fixed pulleys above the guide rails to be connected with the winch 74, and the winch 74 is connected with the controller. The arrangement can ensure the stability of the material conveying trolley during the rising.
in this embodiment, as shown in fig. 6, baffles 13 for preventing concrete from dropping are disposed on two sides of the position, located above the feeding port of the mixer 8, above the third conveyor belt 10, a material guide plate 12 is disposed on the discharging port, located above the fourth conveyor belt 11, of the third conveyor belt 10, the material guide plate 12 is of a "V" type structure, one end of the "V" type structure is fixedly disposed on the rack of the third conveyor belt 10 and clings to the third conveyor belt 10 to scrape down the material on the third conveyor belt 10 and enter the fourth conveyor belt 11, and the other end of the "V" type structure is located directly above the fourth conveyor belt 11 to prevent the scraped material from dropping down from the.
The above description is only a preferred embodiment of the present invention, and any modifications and equivalents made within the spirit and principles of the present invention are intended to be included within the scope of the claims.
Claims (7)
1. the utility model provides a concrete prefab compounding device, a serial communication port, including a plurality of storage hopper I, storage hopper below is provided with the conveyer belt I that can carry material in the storage hopper I, the unloading end of conveyer belt I is provided with weighing hopper I, weighing hopper below is provided with storage hopper II, but the two below of storage hopper is provided with reciprocating motion's conveyer belt II, the below at two ends of conveyer belt is provided with the lifting machine respectively, the unloading end of lifting machine is provided with the mixer, be provided with the water tank of water storage and weighing hopper II that is used for measuring cement respectively directly over the mixer, but the feed opening department of mixer is provided with reciprocating motion's conveyer belt III, the one end of conveyer belt III stretches into inside the workshop, the below of the other end is provided with conveyer belt IV, the discharge end of conveyer belt IV stretches into in another workshop.
2. The concrete preform mixing device as recited in claim 1, wherein two storage hoppers are arranged in parallel; a slide rail is arranged below the first metering hopper, the upper end edges of the two second storage hoppers are fixedly arranged on the same slide block, a first chain wheel and a second chain wheel are respectively arranged at two ends of the slide rail, two ends of a chain are respectively fixedly arranged at the left end and the right end of the slide block, the chain sequentially bypasses the first chain wheel and the second chain wheel, and the second chain wheel is driven to rotate by a forward and reverse rotating motor; the lower end of the sliding rail is also provided with a proximity switch, one of the storage hoppers is located under a feeding port of the weighing hopper when the weighing hopper is used for feeding, and the proximity switch and the forward and reverse rotating motor are connected with the controller.
3. The concrete preform mixing device as recited in claim 2, wherein two proximity switches are arranged in parallel, the second storage hopper is provided with a sensing block, the horizontal distance between the two proximity switches is the same as the horizontal distance between the sensing blocks on the second storage hopper, and one of the proximity switches is located below the first weighing hopper; the upper end edge of the second storage hopper is provided with an outward flange, the second storage hopper is hung on the sliding block through the flange, the opening of the second storage hopper faces upwards, and a pressure sensor is arranged below the sliding block, which is located on the flange, and is connected with the controller.
4. A concrete preform mixing device as claimed in claim 1, wherein the first storage hopper is a funnel-shaped structure with an open upper end, the first storage hopper is fixedly arranged above the same fixing frame side by side, the first conveying belts are fixedly arranged at two ends of the fixing frame, the first weighing hopper is fixedly arranged between the two first conveying belts, four corners of the first weighing hopper are hung on the fixing frame through steel wire ropes, and sensors for weighing are arranged on the steel wire ropes.
5. The concrete prefabricated product mixing device according to claim 1, wherein the hoister comprises a guide rail, a material conveying trolley, a steel wire rope and a winch, the winch drives the material conveying trolley to slide along the guide rail through the steel wire rope, the guide rail comprises an inclined guide rail which is obliquely arranged, a transverse guide rail is arranged at the upper part of the inclined guide rail and is communicated with a position higher than the top of the stirring machine, and a fixed pulley is arranged at the top of the inclined guide rail; the material transporting trolley comprises a hopper, the bottom of the hopper is a bottom plate which is rotatably arranged below the inside of the hopper, one end of the bottom plate, extending out of the hopper, is provided with a first roller, two rollers are arranged on two sides of the outer wall of the bottom of the hopper, three rollers are arranged on two sides of the outer wall of the upper portion of the hopper, the oblique guide rail is of an oblique U-shaped structure, the first roller and the third rollers slide along the inside of the oblique rail, a fixed point of a steel wire rope on the hopper is lower than the horizontal height of the third roller, the second roller slides along the outside of the oblique rail, the material transporting trolley enters the transverse guide rail when ascending to the position of the transverse guide rail, and materials.
6. A concrete pre-form mixing device as claimed in claim 5, wherein two fixed pulleys are arranged in parallel on the outer wall between the guide rails above the hopper, a fixed pulley is arranged on the top above the guide rails, one end of the steel wire rope is fixed above the guide rails, the other end of the steel wire rope passes through the fixed pulleys on the hopper and the fixed pulleys above the guide rails in sequence to be connected with a winch, and the winch is connected with the controller.
7. A concrete pre-product mixing device as claimed in claim 1, wherein, two sides of the position above the third conveyor belt and above the feeding port of the mixer are provided with baffle plates, a material guide plate is arranged on the position above the third conveyor belt and above the fourth conveyor belt, the material guide plate is of a V-shaped structure, one end of the V-shaped structure is fixedly arranged on the rack of the third conveyor belt and clings to the third conveyor belt, and the other end of the V-shaped structure is positioned right above the fourth conveyor belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920127668.0U CN209775155U (en) | 2019-01-25 | 2019-01-25 | Concrete prefab compounding device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920127668.0U CN209775155U (en) | 2019-01-25 | 2019-01-25 | Concrete prefab compounding device |
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| CN209775155U true CN209775155U (en) | 2019-12-13 |
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| CN201920127668.0U Active CN209775155U (en) | 2019-01-25 | 2019-01-25 | Concrete prefab compounding device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109664409A (en) * | 2019-01-25 | 2019-04-23 | 湖北兴葆科技有限责任公司 | A kind of concrete prefabricated product mixing device |
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2019
- 2019-01-25 CN CN201920127668.0U patent/CN209775155U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109664409A (en) * | 2019-01-25 | 2019-04-23 | 湖北兴葆科技有限责任公司 | A kind of concrete prefabricated product mixing device |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A concrete pre product mixing device Effective date of registration: 20220125 Granted publication date: 20191213 Pledgee: Yichang financing guarantee Group Co.,Ltd. Pledgor: HUBEI XINGBAO TECHNOLOGY Co.,Ltd. Registration number: Y2022980001074 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230321 Granted publication date: 20191213 Pledgee: Yichang financing guarantee Group Co.,Ltd. Pledgor: HUBEI XINGBAO TECHNOLOGY Co.,Ltd. Registration number: Y2022980001074 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |