A concrete delivery pump for concrete wet spraying trolley

Abstract

The present invention provides a concrete delivery pump for a concrete wet spraying trolley applied to construction tools or other building auxiliary equipment, or their application fields. The concrete delivery pump effectively ensures the sealing of the fitting point between the hydraulic cylinder and the output elbow during the operation of the delivery pump body through the cooperation of a port sealing ring, a docking sealing ring, an electromagnetic retaining ring and a sealing control system. While avoiding poor sealing caused by seal wear of the hydraulic cylinder and the output elbow during the use of the hydraulic cylinder and the output elbow, the constant sealing effect of the hydraulic cylinder and the output elbow can be effectively maintained, the pumping effect of the hydraulic cylinder on the concrete can be effectively realized, the loss of pump force can be reduced, the construction efficiency can be effectively guaranteed, the energy loss can be reduced, the use performance of the delivery pump body can be effectively guaranteed, the pumping pressure of the concrete can be fully promoted, and the automation and intelligence of the delivery pump body can be improved.

Description

Technical Field

[0001] The present application relates to construction tools or other construction auxiliary equipment, or their application fields, and in particular to a concrete delivery pump for a concrete wet spraying trolley. Background Art

[0002] The basic process of wet shotcrete trolley is to use hydraulic pressure to transport the premixed concrete to the nozzle through the pipeline, connect compressed air and quick-setting agent to the nozzle, and then spray the concrete to the sprayed surface at high speed, and form a concrete support layer after rapid coagulation and hardening. The two actions of feeding and spraying are unified through machinery, completely eliminating the physical harm to workers caused by dust generated by manual mixing and feeding in the spraying process; it has the characteristics of low rebound rate and good spraying surface quality.

[0003] Concrete delivery pump, also known as concrete pump, is one of the main structures of wet shotcrete trolley. It consists of pump body and delivery pipe. It is a machine that uses pressure to continuously deliver concrete along the pipeline. The concrete delivery pump mainly absorbs and pushes out the concrete in the hopper through two hydraulic cylinders, and then uses the delivery push rod to swing the output elbow and the hydraulic cylinder to achieve alternating continuous output, thereby realizing automatic pumping of concrete and fully improving construction efficiency.

[0004] In the process of concrete pumping, the output pressure of concrete mainly relies on the pushing force of the hydraulic cylinder as the main driving force for movement. Therefore, when the hydraulic cylinder and the output elbow pipe output concrete alternately, high requirements are placed on the sealing of their connection to ensure the effectiveness of the pump pressure. However, in the prior art, since the output elbow pipe is affected by the concrete in the hopper, it is inevitable that inclusions will be present at the port during the swinging process or the port will be worn during long-term use, which will directly affect the sealing effect of the connection between the output elbow pipe and the hydraulic cylinder, directly affect the pumping efficiency and pump pressure transmission, and even cause blockage of the concrete pumping, affecting the performance of the concrete pump. Summary of the invention

[0005] The purpose of the present application is to solve the problem of sealing performance of the output elbow and the hydraulic cylinder during the operation of the concrete delivery pump. Compared with the prior art, a concrete delivery pump for a concrete wet spraying trolley is provided, including a delivery pump body, the delivery pump body including a hopper, an output elbow located in the hopper, and a pair of hydraulic cylinders fixedly installed at the left end of the hopper, and the hydraulic cylinders are connected to the hopper and the output elbow respectively, the right end of the hydraulic cylinder is fixedly connected to a pumping port extending into the hopper, the left end of the output elbow is fixedly connected to a docking port matching the pumping port, the right end of the pumping port is embedded with a port sealing ring, and the left end of the docking port is embedded with a docking sealing ring matching the port sealing ring;

[0006] A sealing holding cavity is provided in the butt sealing ring, and electromagnetic holding rings are fixedly connected to the left and right inner walls of the sealing holding cavity, and a plurality of resetting elastic members are fixedly connected between the two electromagnetic holding rings;

[0007] The delivery pump body is also provided with a sealing control system, which includes a sealing control processing unit, the input end of which is connected to a control instruction receiving unit, and the output end of which is connected to a sealing holding unit;

[0008] The input end of the control instruction receiving unit is connected to the main controller signal of the delivery pump body, and the output end of the sealing holding unit is connected to the electromagnetic holding ring signal.

[0009] Optionally, a sealed sensing cavity is opened in the port sealing ring, the inner wall of the sealed sensing cavity is fixedly connected to a sensing control ring, the right end of the sensing control ring is fixedly connected to multiple pressure retaining springs, and the right ends of the multiple pressure retaining springs are fixedly connected to an elastic slip ring that slides with the sealed sensing cavity.

[0010] Optionally, the front end of the port sealing ring is fixedly connected to multiple sealing sensing hemispheres, and the front end of the docking sealing ring is fixedly connected to multiple docking hemispheres that match the sealing sensing hemispheres. The sealing sensing hemispheres are made of elastic material, and the docking hemispheres are made of rigid wear-resistant material.

[0011] Optionally, a trigger cavity connected to the sealed sensing cavity is opened at the left end of the sealed sensing hemisphere, a sealed control block is fixedly connected to the right inner wall of the trigger cavity, a hard top block extending to the right side of the sealed sensing hemisphere is fixedly connected to the right end of the sealed control block, a control trigger group is connected between the sealed control block and the elastic slip ring, the input end of the sealed control processing unit is also connected to the sealed sensing unit, and the input end of the sealed sensing unit is connected to the control trigger group signal.

[0012] Optionally, the regulation trigger group includes a pair of trigger columns, the sealing regulation block and the elastic slip ring are fixedly connected to the trigger columns at one end close to each other, a trigger spring mounted on the outer end of the trigger column is fixedly connected between the sealing regulation block and the elastic slip ring, and the input end of the sealing sensing unit is connected to the trigger column signal.

[0013] Furthermore, the output end of the sealing control processing unit is also connected to a pump pressure circulation instruction feedback unit, and the output end of the pump pressure circulation instruction feedback unit is connected to the master control signal of the delivery pump body.

[0014] Furthermore, the output end of the sealing control processing unit is also connected to the sealing adjustment unit, and the output end of the sealing adjustment unit is connected to the electromagnetic retaining ring signal.

[0015] Furthermore, a pressure feedback device is fixedly connected to the right end of the induction control ring, and the input end of the sealing control processing unit is also connected to the sealing feedback unit. The input end of the sealing feedback unit is connected to the pressure feedback device signal, and the output end of the sealing feedback unit is also connected to the sealing control unit signal.

[0016] Furthermore, a pressure detector is arranged in the docking sealing ring, and the input end of the sealing control processing unit is also connected to a damage sensing unit, and the input end of the damage sensing unit is connected to the pressure detector signal.

[0017] Furthermore, the output end of the sealing control processing unit is also connected to the sealing life prediction unit and the alarm unit, the input end of the sealing life prediction unit is also connected to the damage sensing unit signal, the output end of the sealing life prediction unit is respectively connected to the master control controller and the alarm unit signal of the conveying pump body, and the output end of the alarm unit is connected to the alarm signal set on the conveying pump body.

[0018] Compared with the prior art, the advantages of this application are:

[0019] (1) Through the coordination of the port sealing ring, the docking sealing ring, the electromagnetic retaining ring and the sealing control system, the sealing performance of the hydraulic cylinder and the output elbow can be effectively guaranteed during the operation of the conveying pump body. While avoiding the poor sealing caused by the seal wear of the hydraulic cylinder and the output elbow during the use of the hydraulic cylinder and the output elbow, the constant sealing effect of the hydraulic cylinder and the output elbow can be effectively maintained, and the pump pressure effect of the hydraulic cylinder on the concrete can be effectively realized, and the loss of pump force can be reduced. It can effectively ensure the construction efficiency, reduce energy loss, effectively ensure the use performance of the conveying pump body, fully promote the pumping pressure of the concrete, and improve the automation and intelligence of the conveying pump body.

[0020] (2) The coordination of the induction control ring and the elastic sliding ring can effectively assist and enhance the elastic effect of the port sealing ring. While ensuring that the port sealing ring can shrink and cooperate with the butt sealing ring to perform a sealing effect, it can also restore the deformation of the port sealing ring during the process of the hydraulic cylinder pumping concrete, and seal the port of the pumping port, effectively reducing the problem of concrete affecting the sealing effect and improving the durability of the sealing coordination.

[0021] (3) Through the cooperation of the sealing control block, the sealing sensing hemisphere and the sealing sensing unit, the sealing status of the hydraulic cylinder and the output elbow can be effectively detected. While ensuring the sealing effectiveness and the accuracy of the sealing control, the influence of the concrete on the sealing effect can be fully detected, ensuring the smoothness of the output elbow movement and avoiding abnormal pumping caused by concrete resistance. A single trigger signal can be used to detect multiple problems, effectively promoting the functionality and fault self-detection function of the conveying pump body, and improving the practicality of the conveying pump body.

[0022] (4) Through the setting of the pump pressure cycle instruction feedback unit, the sealing control system can not only ensure the sealing and detect the sealing of the pumping process, but also effectively check and feedback the pumping action, further increase the self-inspection function of the conveying pump body, reduce the operation and maintenance difficulty and cost of the conveying pump body, and promote the economic benefits of the conveying pump body.

[0023] (5) The cooperation between the seal adjustment unit and the electromagnetic retaining ring can continuously maintain the sealing effect after slight wear of the hydraulic cylinder and the output elbow seal, effectively extending the seal life and realizing the continuity of the operation of the delivery pump body, thereby effectively reducing the loss of pump pressure during the pumping process, ensuring the concrete delivery efficiency, reducing the probability of blockage, and reducing the failure rate of the delivery pump body.

[0024] (6) The setting of the pressure feedback device and the seal feedback unit can effectively detect and feedback the wear conditions of the port seal ring and the docking seal ring, effectively improve the stability of the sealing effect, and can also detect the execution status of the seal adjustment instruction and the maintenance instruction to ensure the effectiveness of the seal adjustment and maintenance, ensure the effectiveness of the concrete pumping process, and thus ensure the continuity and stability of the operation of the conveying pump body.

[0025] (7) The setting of the pressure detector and the damage sensing unit can effectively sense whether the docking seal ring is damaged. While ensuring the alternating performance of the output elbow in the hopper, it can also sense its wear data, thereby ensuring the service life of the docking seal ring and avoiding its accidental damage, which directly affects the concrete pumping effect.

[0026] (8) The setting of the seal life estimation unit and the alarm unit can promptly remind the staff to perform maintenance on the conveying pump body after the port seal ring and the docking seal ring are worn out, thereby avoiding long-term improper maintenance that may cause damage to the conveying pump body. It can reduce the difficulty of operation and maintenance of the conveying pump body and improve the maintenance efficiency of the conveying pump body, thereby ensuring the service life of the conveying pump body. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 The isometric diagram of the sealing control system and the delivery pump body of the present application;

[0028] Figure 2 A diagram showing the changing states of the port seal ring and the docking seal ring during the sealing process of the present application;

[0029] Figure 3 A diagram showing the changing states of the port seal ring and the docking seal ring of the present application during the process of releasing and maintaining the seal;

[0030] Figure 4This is an axonometric diagram of the working process of the delivery pump body of this application;

[0031] Figure 5 This is the control logic diagram of the sealing control system of this application;

[0032] Figure 6 This is a diagram showing the changing states of the induction control ring and the electromagnetic retaining ring during the sealing and retaining process of the present application;

[0033] Figure 7 This is an exploded diagram of the hydraulic cylinder and output elbow of this application;

[0034] Figure 8 It is a front cross-sectional view of the hydraulic cylinder and the output elbow of the present application when there is no pumping matching relationship;

[0035] Fig. 9 It is a front cross-sectional view of the pumping matching relationship between the hydraulic cylinder and the output elbow of the present application when initially sealed;

[0036] Fig.10 This is a front cross-sectional view of the pump-out matching relationship between the hydraulic cylinder and the output elbow of the present application when the seal is maintained.

[0037] Description of the numbers in the figure:

[0038] 1 conveying pump body, 11 hydraulic cylinder, 12 hopper, 13 output elbow, 2 pump material port, 3 docking port, 4 port sealing ring, 41 sealing induction hemisphere, 5 docking sealing ring, 51 docking hemisphere, 6 induction control ring, 61 elastic slip ring, 7 electromagnetic retaining ring, 71 reset elastic part, 8 sealing control block, 81 control trigger group. DETAILED DESCRIPTION

[0039] The embodiments will be combined with the drawings in the specification to clearly and completely describe the technical solution of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making any creative work shall fall within the scope of protection of the present application.

[0040] Embodiment 1:

[0041] The present invention provides a concrete pump for a concrete wet spraying trolley, see Figure 1-10 , including a delivery pump body 1, the delivery pump body 1 includes a hopper 12, an output elbow 13 located in the hopper 12 and a pair of hydraulic cylinders 11 fixedly installed at the left end of the hopper 12, and the hydraulic cylinders 11 are respectively connected to the hopper 12 and the output elbow 13, the right end of the hydraulic cylinder 11 is fixedly connected with a pumping port 2 extending into the hopper 12, the left end of the output elbow 13 is fixedly connected with a docking port 3 matched with the pumping port 2, the right end of the pumping port 2 is embedded with a port sealing ring 4, and the left end of the docking port 3 is embedded with a docking sealing ring 5 matched with the port sealing ring 4;

[0042] A sealing holding cavity is provided in the butt sealing ring 5, and electromagnetic holding rings 7 are fixedly connected to the left and right inner walls of the sealing holding cavity, and a plurality of resetting elastic members 71 are fixedly connected between the two electromagnetic holding rings 7;

[0043] A sealing control system is also provided in the delivery pump body 1, and the sealing control system includes a sealing control processing unit, the input end of the sealing control processing unit is connected to the control instruction receiving unit, and the output end of the sealing control processing unit is connected to the sealing holding unit;

[0044] The input end of the control instruction receiving unit is connected to the signal of the main controller of the conveying pump body 1, and the output end of the sealing holding unit is connected to the signal of the electromagnetic holding ring 7. Through the cooperation of the port sealing ring 4, the docking sealing ring 5, the electromagnetic holding ring 7 and the sealing control system, the sealing of the hydraulic cylinder 11 and the output elbow 13 is effectively guaranteed during the operation of the conveying pump body 1. While avoiding poor sealing caused by seal wear during the use of the hydraulic cylinder 11 and the output elbow 13, it can also effectively maintain the constant sealing effect of the hydraulic cylinder 11 and the output elbow 13, effectively realize the pumping effect of the hydraulic cylinder 11 on the concrete, reduce the loss of pump force, can effectively ensure construction efficiency, reduce energy loss, effectively ensure the use performance of the conveying pump body 1, fully promote the pumping pressure of the concrete, and improve the automation and intelligence of the conveying pump body 1.

[0045] See also Figure 1-10 A sealed sensing chamber is provided in the port sealing ring 4, and a sensing control ring 6 is fixedly connected to the inner wall of the sealed sensing chamber. A plurality of pressure retaining springs are fixedly connected to the right end of the sensing control ring 6, and an elastic slip ring 61 that slides with the sealed sensing chamber is fixedly connected to the right end of the plurality of pressure retaining springs. The cooperation of the sensing control ring 6 and the elastic slip ring 61 can effectively assist and enhance the elastic effect of the port sealing ring 4. While ensuring that the port sealing ring 4 can shrink and cooperate with the docking sealing ring 5 to perform a sealing effect, the deformation of the port sealing ring 4 can also be restored during the process of the hydraulic cylinder 11 pumping concrete, and the port of the pumping port 2 can be blocked, thereby effectively reducing the problem of concrete affecting the sealing effect and improving the durability of the sealing cooperation.

[0046] See also Figure 1-10When the delivery pump body 1 is working, firstly, concrete is put into the hopper 12, and then the main controller of the delivery pump body 1 controls the two hydraulic cylinders 11 to work alternately according to the set program, and one of the hydraulic cylinders 11 drives the piston to move to the left center through hydraulic pressure to pump the concrete in the hopper 12 into the cylinder; the main controller then controls the output elbow 13 to produce a swinging action corresponding to the alternating work of the hydraulic cylinders 11, so that the output elbow 13 is connected to the hydraulic cylinder 11 in which the concrete is pumped, and then the piston in the cylinder is hydraulically controlled to move to the right, and the concrete in the cylinder is passed into the output elbow 13, so that the concrete can be transported to the required position through the pump pressure and the guidance of the output elbow 13. While this hydraulic cylinder 11 is pumping out, the other hydraulic cylinder 11 produces an action of pumping in concrete, thereby forming a single-pass pumping out; finally, after the concrete in the hydraulic cylinder 11 is pumped out, the main controller controls the output elbow 13 to swing and connect with the hydraulic cylinder 11 in which the concrete is pumped into the other cylinder, thereby forming a cycle of pumping out action, thereby realizing automatic delivery of concrete;

[0047] While the hydraulic cylinder 11 and the output elbow 13 continuously and alternately cooperate to pump out the concrete, the control command of the master controller is simultaneously transmitted to the control command receiving unit. After receiving the command, the control command receiving unit transmits it to the sealing control processing unit. After the sealing control processing unit processes and converts it, it sends a synchronous control command to the sealing holding unit, so that the sealing holding unit controls the electromagnetic holding ring 7 to take effect.

[0048] When the hydraulic cylinder 11 and the output elbow 13 are connected to each other to pump out concrete, the port sealing ring 4 and the docking sealing ring 5 are aligned through the contact between the pumping port 2 and the docking port 3, and then current is passed through the two electromagnetic retaining rings 7, so that the electromagnetic retaining rings 7 produce the same magnetic poles, and then under the action of magnetic repulsion, the electromagnetic retaining rings 7 drive the docking sealing ring 5 to produce elongation deformation, at this time, the reset elastic member 71 produces elongation deformation, the docking sealing ring 5 squeezes the port sealing ring 4, and the elastic sliding ring 61 in the port sealing ring 4 slides in the sealing induction cavity and squeezes the pressure holding spring to extend. To the pumping port 2, the sealing fit between the pumping port 2 and the docking port 3 is maintained to avoid the generation of a fitting gap, thereby avoiding the loss of pump pressure of the hydraulic cylinder 11; when the hydraulic cylinder 11 and the output elbow 13 are disengaged and not docked to carry out the concrete pumping process and the output elbow 13 is moving, the current input in the electromagnetic retaining ring 7 is blocked, so that it has no magnetism, and then the docking sealing ring 5 is reset under the action of the elastic recovery of the reset elastic member 71 and the recovery deformation of the port sealing ring 4 under the pressure holding spring, and is separated from the pumping port 2, and at the same time, the port sealing ring 4 is guaranteed to have a blocking effect on the right end of the pumping port 2.

[0049] The sealing control system and related structures of this embodiment can not only be used for sealing monitoring between the hydraulic cylinder 11 and the output elbow 13, but also can be used to appropriately set, detect and control the pipeline connection seals during the concrete pumping process, thereby effectively ensuring a low loss rate of pump pressure, promoting the use efficiency of the conveying pump body 1 and reducing energy loss.

[0050] Embodiment 2:

[0051] The present invention provides a concrete pump for a concrete wet spraying trolley, wherein the same or corresponding parts as those in the first embodiment are marked with the corresponding reference numerals of the first embodiment. For the sake of simplicity, only the differences from the first embodiment are described below. The difference between the second embodiment and the first embodiment is as follows: Figure 1-10 The front end of the port sealing ring 4 is fixedly connected with a plurality of sealing sensing hemispheres 41 , and the front end of the docking sealing ring 5 is fixedly connected with a plurality of docking hemispheres 51 matched with the sealing sensing hemispheres 41 .

[0052] See also Figure 1-10 The sealing sensing hemisphere 41 is made of elastic material, and the docking hemisphere 51 is made of rigid wear-resistant material. The cooperation between the sealing sensing hemisphere 41 and the docking hemisphere 51 realizes the testability of the sealing effect, can intuitively display the sealing data, reduce the difficulty of operation and maintenance of the conveying pump body 1, and ensure the use effect of the conveying pump body 1.

[0053] See also Figure 2 , Figure 3 and Figure 6-10 A trigger chamber connected to the sealing sensing chamber is provided at the left end of the sealing sensing hemisphere 41, a sealing regulating block 8 is fixedly connected to the right inner wall of the trigger chamber, a hard top block extending to the right side of the sealing sensing hemisphere 41 is fixedly connected to the right end of the sealing regulating block 8, a regulating trigger group 81 is connected between the sealing regulating block 8 and the elastic slip ring 61, and the input end of the sealing regulating processing unit is also connected to the sealing sensing unit, and the input end of the sealing sensing unit is connected to the regulating trigger group 81 signal. Through the cooperation of the sealing regulating block 8, the sealing sensing hemisphere 41 and the sealing sensing unit, the sealing state of the hydraulic cylinder 11 and the output elbow 13 can be effectively detected. While ensuring the sealing effectiveness and the accuracy of the sealing regulation, the influence of the concrete on the sealing effect can also be fully detected at this time, so as to ensure the smoothness of the movement of the output elbow 13 and avoid the problem of abnormal pumping due to the resistance of the concrete. A single trigger signal is used to achieve the detection effect of multiple problems, effectively promoting the functionality and fault self-detection function of the conveying pump body 1, and improving the practicality of the conveying pump body 1.

[0054] See also Figure 2 , Figure 3 and Figure 6-10The regulating trigger group 81 includes a pair of trigger columns. The sealing regulating block 8 and the elastic slip ring 61 are fixedly connected with the trigger columns at one end thereof. A trigger spring sleeved on the outer end of the trigger column is fixedly connected between the sealing regulating block 8 and the elastic slip ring 61. The elastic coefficient of the trigger spring is smaller than the elastic coefficient of the pressure holding spring, thereby ensuring that when the trigger column abuts, the elastic slip ring 61 will not slide, thereby ensuring the stability and effectiveness of the trigger. The input end of the sealing sensing unit is connected to the trigger column signal.

[0055] See also Figure 2 , Figure 3 and Figure 6-10 The output end of the sealing control processing unit is also connected to a pump pressure circulation instruction feedback unit, and the output end of the pump pressure circulation instruction feedback unit is connected to the signal of the master control unit of the delivery pump body 1. Through the setting of the pump pressure circulation instruction feedback unit, the sealing control system can not only ensure the sealing and detect the sealing of the pumping process, but also effectively play the role of checking and feedback on the pumping action, further increase the self-inspection function of the delivery pump body 1, reduce the operation and maintenance difficulty and cost of the delivery pump body 1, and promote the economic benefits of the delivery pump body 1.

[0056] See also Figure 1-10 The output end of the sealing control processing unit is also connected to a sealing adjustment unit, and the output end of the sealing adjustment unit is connected to the electromagnetic retaining ring 7 signal. The cooperation between the sealing adjustment unit and the electromagnetic retaining ring 7 can continuously maintain the sealing effect after slight wear of the hydraulic cylinder 11 and the output elbow 13 seals, effectively prolonging the sealing life, achieving the continuity of the operation of the conveying pump body 1, and thus effectively reducing the loss of pump pressure during the pumping process, ensuring the concrete transmission efficiency, reducing the probability of blockage, and reducing the failure rate of the conveying pump body 1.

[0057] See also Figure 1-10 , in the process of the control instruction receiving unit controlling the electromagnetic retaining ring 7, if the port sealing ring 4 and the docking sealing ring 5 are required to perform sealing work, the docking hemisphere 51 squeezes the sealing sensing hemisphere 41 while the port sealing ring 4 and the docking sealing ring 5 are in contact, so that the sealing sensing hemisphere 41 produces a concave deformation, and drives the sealing control block 8 to move to the left, so that the two trigger columns abut, and then the sealing sensing unit receives the abutment signal and transmits the signal to the sealing control processing unit; if the port sealing ring 4 and the docking sealing ring 5 do not perform sealing work, the docking hemisphere 51 moves away from the sealing sensing hemisphere 41, and then the sealing sensing hemisphere 41 produces shape restoration under the elastic recovery of the trigger spring, drives the sealing control block 8 to move to the right, keeps the sealing sensing hemisphere 41 convex, and the two trigger columns are away from each other and do not contact, the sealing sensing unit receives the disconnection signal, and transmits the signal to the sealing control processing unit;

[0058] The sealing control processing unit detects the matching condition of the output elbow 13 and the hydraulic cylinder 11 at this time according to the signal transmitted by the sealing sensing unit, and effectively determines the effectiveness of the sealing matching. When poor sealing occurs or the output elbow 13 and the hydraulic cylinder 11 do not match the action, the information is fed back to the main controller, and a signal of mismatching action can be sent to the pump pressure cycle instruction feedback unit, so that the main controller checks the program instructions and sends data and signals to the user, thereby increasing the self-inspection function of the conveying pump body 1, reducing the difficulty of operation and maintenance of the conveying pump body 1, and promoting the use and development of the conveying pump body 1.

[0059] Embodiment 3:

[0060] The present invention provides a concrete pump for a concrete wet spraying trolley, wherein the same or corresponding parts as those in the first embodiment are marked with the corresponding reference numerals of the first embodiment. For the sake of simplicity, only the differences from the first embodiment are described below. The difference between the third embodiment and the first embodiment is as follows: Figure 1-10 The right end of the induction control ring 6 is fixedly connected with a pressure feedback device, and the input end of the sealing control processing unit is also connected with a sealing feedback unit. The input end of the sealing feedback unit is connected with the pressure feedback device signal, and the output end of the sealing feedback unit is also connected with the sealing control unit signal. The setting of the pressure feedback device and the sealing feedback unit can effectively realize the detection and data feedback of the wear condition of the port sealing ring 4 and the docking sealing ring 5, effectively improve the stability of the sealing effect, and can also detect the execution status of the sealing adjustment instruction and the holding instruction, to ensure the effectiveness of the sealing adjustment and holding, to ensure the effectiveness of the concrete pumping process, and thus to ensure the continuity and stability of the operation of the conveying pump body 1.

[0061] When the port sealing ring 4 is squeezed by the sealing effect, its internal pressure increases, and after the execution of the sealing holding instruction is completed, the pressure in the port sealing ring 4 will tend to be stable; when the sealing of the port sealing ring 4 is released and restored, the pressure inside it gradually decreases, and after the restoration is completed, the pressure in the port sealing ring 4 will tend to be stable, and then the sealing feedback unit uses the pressure feedback device to receive and collect the data of the pressure change in the port sealing ring 4, and transmits the pressure data to the sealing control processing unit, so that the sealing control processing unit can perform data detection on the control of the sealing holding and sealing adjustment actions according to the pressure data, and then regulate the instructions to achieve high-precision control of the sealing effect, and can also judge the wear condition of the port sealing ring 4 based on the comparative analysis of the pressure change data of the port sealing ring 4, so as to facilitate timely and effective replacement and maintenance of the port sealing ring 4, and maintain the effectiveness and timeliness of the operation and maintenance of the conveying pump body 1.

[0062] See also Figure 1-10A pressure detector is arranged in the docking sealing ring 5, and the input end of the sealing control processing unit is also connected to a damage sensing unit. The input end of the damage sensing unit is connected to the pressure detector signal. The setting of the pressure detector and the damage sensing unit can effectively sense whether the docking sealing ring 5 is damaged. While ensuring the alternating performance of the output elbow 13 in the hopper 12, its wear data can also be sensed, thereby ensuring the service life of the docking sealing ring 5 and avoiding its damage due to accidents, which directly affects the concrete pumping effect.

[0063] When the docking seal ring 5 is acted upon by the electromagnetic retaining ring 7 and the reset elastic member 71 to produce a sealing action and a sealing release action, the pressure data inside it maintains the same regular change as the port seal ring 4, so that the damage sensing unit can collect these data through the pressure detector to ensure the detectability of the actions of the port seal ring 4 and the docking seal ring 5, and then the sealing control processing unit uses these data to determine the actual states of the port seal ring 4 and the docking seal ring 5. Due to the linkage between the docking seal ring 5 and the output elbow 13, the docking seal ring 5 is constantly moving in the hopper 12 and is subject to greater wear and tear, resulting in holes. The state of the docking seal ring 5 can be timely acquired through the detection of the pressure detector to ensure the effectiveness of the docking seal ring 5.

[0064] By increasing the portability and controllability of the operation and maintenance of the delivery pump body 1, the port sealing ring 4 and the docking sealing ring 5 can be replaced and maintained in time. When the port sealing ring 4 and the docking sealing ring 5 can no longer be used, their internal structures can be recycled in time, thereby reducing the operation and maintenance cost and preparation cost of the delivery pump body 1 and ensuring the applicability of the delivery pump body 1.

[0065] See also Figure 1-10 The output end of the sealing control processing unit is also connected to a sealing life prediction unit and an alarm unit, the input end of the sealing life prediction unit is also connected to the damage sensing unit signal, the output end of the sealing life prediction unit is respectively connected to the master control controller and the alarm unit signal of the conveying pump body 1, the output end of the alarm unit is connected to the alarm signal arranged on the conveying pump body 1, the setting of the sealing life prediction unit and the alarm unit can timely remind the staff to perform maintenance on the conveying pump body 1 after the port sealing ring 4 and the docking sealing ring 5 are damaged, so as to avoid long-term improper maintenance, which may cause damage to the conveying pump body 1, reduce the difficulty of operation and maintenance of the conveying pump body 1 and improve the maintenance efficiency of the conveying pump body 1, thereby ensuring the service life of the conveying pump body 1.

[0066] The above is only the best implementation method adopted by this application in combination with current actual needs, but the protection scope of this application is not limited to this.

Claims

1. A concrete pump for a concrete wet spraying trolley, comprising a pump body (1), wherein the pump body (1) comprises a hopper (12), an output elbow (13) located in the hopper (12), and a pair of hydraulic cylinders (11) fixedly mounted at the left end of the hopper (12), characterized in that: The right end of the hydraulic cylinder (11) is fixedly connected to a pumping port (2) extending into the hopper (12); the left end of the output elbow (13) is fixedly connected to a docking port (3) matching the pumping port (2); the right end of the pumping port (2) is embedded with a port sealing ring (4); the left end of the docking port (3) is embedded with a docking sealing ring (5) matching the port sealing ring (4); A sealing holding cavity is provided in the docking sealing ring (5), and electromagnetic holding rings (7) are fixedly connected to the left and right inner walls of the sealing holding cavity, and a plurality of reset elastic members (71) are fixedly connected between the two electromagnetic holding rings (7); a sealing sensing cavity is provided in the port sealing ring (4), and a sensing control ring (6) is fixedly connected to the left inner wall of the sealing sensing cavity, and a plurality of pressure holding springs are fixedly connected to the right end of the plurality of pressure holding springs, and an elastic sliding ring (61) that is slidably matched with the sealing sensing cavity is fixedly connected to the right end of the plurality of pressure holding springs; A sealing control system is also provided in the delivery pump body (1), and the sealing control system comprises a sealing control processing unit, the input end of the sealing control processing unit is connected to a control instruction receiving unit, the output end of the sealing control processing unit is connected to a sealing holding unit, the input end of the control instruction receiving unit is connected to the signal of the main controller of the delivery pump body (1), and the output end of the sealing holding unit is connected to the signal of the electromagnetic holding ring (7).

2. A concrete pump for a concrete wet spraying trolley according to claim 1, characterized in that: The front end of the port sealing ring (4) is fixedly connected to a plurality of sealing induction hemispheres (41), and the front end of the docking sealing ring (5) is fixedly connected to a plurality of docking hemispheres (51) matched with the sealing induction hemispheres (41).

3. A concrete pump for a concrete wet spraying trolley according to claim 2, characterized in that: The left end of the sealing sensing hemisphere (41) is provided with a trigger cavity connected to the sealing sensing cavity; the right inner wall of the trigger cavity is fixedly connected to a sealing control block (8); the right end of the sealing control block (8) is fixedly connected to a hard top block extending to the right side of the sealing sensing hemisphere (41); a control trigger group (81) is connected between the sealing control block (8) and the elastic slip ring (61); the input end of the sealing control processing unit is also connected to the sealing sensing unit; and the input end of the sealing sensing unit is signal-connected to the control trigger group (81).

4. A concrete pump for a concrete wet spraying trolley according to claim 3, characterized in that: The regulating trigger group (81) comprises a pair of trigger columns, the sealing regulating block (8) and the elastic slip ring (61) are fixedly connected to the trigger columns at one end close to each other, a trigger spring sleeved on the outer end of the trigger column is fixedly connected between the sealing regulating block (8) and the elastic slip ring (61), and the input end of the sealing sensing unit is connected to the trigger column signal.

5. A concrete pump for a concrete wet spraying trolley according to claim 2, characterized in that: The sealing sensing hemisphere (41) is made of elastic material, and the docking hemisphere (51) is made of rigid wear-resistant material.

6. The concrete pump for concrete wet spraying trolley according to claim 1, characterized in that: The output end of the sealing control processing unit is also connected to a pump pressure cycle instruction feedback unit, and the output end of the pump pressure cycle instruction feedback unit is connected to the master control signal of the delivery pump body (1).

7. The concrete pump for a concrete wet spraying trolley according to claim 1, characterized in that: The output end of the sealing control processing unit is also connected to a sealing control unit, and the output end of the sealing control unit is connected to the electromagnetic retaining ring (7) by signal.

8. The concrete pump for a concrete spraying trolley according to claim 1, characterized in that: The right end of the inductive control ring (6) is fixedly connected to a pressure feedback device, the input end of the sealing control processing unit is also connected to a sealing feedback unit, the input end of the sealing feedback unit is connected to the pressure feedback device signal, and the output end of the sealing feedback unit is also connected to the sealing control unit signal.

9. The concrete delivery pump for a concrete wet spraying trolley according to claim 1, characterized in that: A pressure detector is arranged inside the docking sealing ring (5), and the input end of the sealing control processing unit is also connected to a damage sensing unit, and the input end of the damage sensing unit is connected to the pressure detector signal.

10. The concrete delivery pump for a concrete wet spraying trolley according to claim 1, characterized in that: The output end of the seal control processing unit is also connected to a seal life prediction unit and an alarm unit, the input end of the seal life prediction unit is also connected to the damage sensing unit signal, the output end of the seal life prediction unit is respectively connected to the master control unit and the alarm unit signal of the delivery pump body (1), and the output end of the alarm unit is connected to the alarm signal arranged on the delivery pump body (1).

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