Quick connecting device for concrete delivery pump pipe
The quick connection device, which links clamps, tie rods, and connecting rods, solves the problems of low connection efficiency and insufficient stability of concrete conveying pump pipes, and achieves quick, stable connection and sealing of pump pipes, thereby improving construction efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-13
- Publication Date
- 2026-04-07
AI Technical Summary
Existing concrete pump pipe connection devices suffer from low connection efficiency and insufficient stability, especially under high pressure conditions, they are prone to loosening or misalignment, affecting construction efficiency and safety.
A quick-connection device is adopted, which links clamps, tie rods, and connecting rods. Through the cooperation of pawls and limit rods, the pump pipe can be quickly connected and secured. Combined with a flexible sealing ring, it ensures sealing and prevents slurry leakage.
It enables rapid and secure connection of pump pipes, improves construction efficiency, ensures sealing and safety under high-pressure conditions, and avoids pump pipe detachment and grout leakage.
Smart Images
Figure CN224094033U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to concrete delivery pump technical field, especially a kind of concrete delivery pump pipe quick connecting device. BACKGROUND
[0002] Concrete delivery pump pipe is the key equipment in concrete construction, for conveying concrete from pump truck to pouring position. In the construction process, pump pipe needs to be quickly and reliably assembled and disassembled by connecting device.
[0003] With the vigorous development of construction industry, super high-rise building, large bridge, underground comprehensive pipe gallery and other large and complex engineering projects are increasing, which puts forward more stringent requirements for concrete delivery pump pipe connecting device. On the one hand, the expansion of construction scale and the tight progress urgently need the connecting device to realize quick and efficient connection, reduce pump pipe installation and disassembly time, and improve construction efficiency. On the other hand, under complex conditions, concrete pumping pressure is higher, flow is larger, and conveying distance is longer, which requires the connecting device to have excellent sealing, stability and reliability, to ensure stable operation under extreme conditions and prevent problems such as leakage and loosening.
[0004] Traditional pump pipe connection method usually adopts flange bolt connection or clamp connection, but these methods have the following defects:
[0005] Low efficiency: flange bolt connection needs to tighten bolts one by one, which is tedious and time-consuming, affecting construction efficiency, especially in the condition of frequent disassembly.
[0006] High labor intensity: bolt connection and disassembly need to apply large torque manually, especially when pump pipe is full of concrete, operation is more difficult, which increases the labor intensity of workers.
[0007] Reliability problem: in high pressure conveying process, traditional connection method may appear loosening or misplacement, which leads to pump pipe falling off or pipe explosion, and there is safety hazard.
[0008] Therefore, a simple structure, convenient operation, reliable sealing and suitable for high pressure condition concrete pump pipe quick connecting device is needed to improve construction efficiency and ensure operation safety. UTILITY MODEL CONTENT
[0009] The utility model aims at providing a kind of concrete delivery pump pipe quick connecting device to solve the problems of low connection efficiency and insufficient stability of existing concrete delivery pump pipe connecting device, realize the quick and convenient connection of pump pipe, and improve the efficiency and safety of concrete conveying operation.
[0010] To achieve the above objectives, this application provides the following technical solution: a quick connection device for a concrete conveying pump pipe, including a pump pipe, a connector at the end of the pump pipe, a retaining ring next to the connector, and a connecting cylinder, a clamp, and a tie rod.
[0011] The top of the connecting cylinder is provided with an adjustment seat, and the adjustment seat is provided with an adjustment block that can be adjusted forward and backward. Both ends of the adjustment block are connected to pawls by torsion springs. The pawls can be flipped forward and reset. Both the left and right sides of the front and rear ends of the connecting cylinder are symmetrically provided with slides, and a slider slides longitudinally in the slides.
[0012] The connecting cylinder has two sets of clamps on both the front and rear sides. The two sets of clamps on each side are symmetrically arranged vertically. The inner side of the clamp has an annular groove that cooperates with the retaining ring. The left and right ends of the clamp are hinged to the slider through short rods.
[0013] The connecting cylinder has a pull rod hinged to the middle of both sides. The pull rod is hinged to the slider through a connecting rod. The two sets of connecting rods on the same pull rod are symmetrical about the hinge point between the pull rod and the connecting cylinder.
[0014] A handle and a limiting rod are connected between the two sets of pull rods. The limiting rod is adapted to the pawl, and the pawl can limit the limiting rod.
[0015] Furthermore, the front and rear ends of the top surface of the adjusting seat are respectively provided with rotating seats, and a screw is rotatably connected between the two sets of rotating seats. The adjusting block is provided with a screw hole, and the screw is threaded in the screw hole. The position of the adjusting block is changed by using the self-locking property of the screw hole and screw drive. By rotating the screw, the adjusting block can be driven to move back and forth on the adjusting seat, thereby adjusting the position of the pawl to adapt to different docking situations.
[0016] Furthermore, the top surface of the adjusting seat is provided with symmetrical guide bars, which are parallel to the axis of the screw. The bottom of the adjusting block is provided with a guide groove, in which the guide bars are slidably connected. The guide bars and guide grooves can guide and limit the movement of the adjusting block, ensuring the stability and accuracy of the adjusting block during movement.
[0017] Furthermore, one end of the screw is provided with an end block, and the end block has a socket. The socket is perpendicular to the axis of the screw, and a plug is inserted into the socket. The plug increases the torque when rotating the screw, improves the convenience of adjusting the screw during use, ensures the position of the adjusting block is fixed, and thus ensures the limiting effect of the pawl on the limiting rod.
[0018] Furthermore, each end of the connecting cylinder is provided with a sealing groove, and a sealing ring is installed in the sealing groove. The sealing ring is made of flexible material and is located between the connecting cylinder and the butt joint. The sealing ring effectively enhances the sealing performance of the connection and prevents concrete leakage during transportation.
[0019] Furthermore, the slide block is provided with a groove, and the slider is slidably connected in the groove. The end of the groove facing the pump pipe has a rounded corner. When the slider moves along the groove towards the middle of the connecting cylinder, the groove reduces the included angle between the two sets of short rods on the slider. This design allows the slider to drive the clamp to tighten and move synchronously with the docking ring through the short rods when sliding in the groove, realizing the rapid clamping and loosening of the clamp on the pump pipe retaining ring.
[0020] In summary, the technical effects and advantages of this utility model are as follows:
[0021] 1. This utility model uses a pull handle to rotate a pull rod, which in turn drives a slider to slide in a slide block, thereby moving a short rod and clamping the clamp onto the circlip. This enables quick connection and separation of the clamp and the pump pipe circlip, significantly shortening the pump pipe connection time and improving construction efficiency compared to traditional bolt connections.
[0022] 2. A flexible sealing ring is installed in the sealing groove at the end of the connecting cylinder of this utility model. When the clamp tightens the pump pipe, the sealing ring fits tightly against the joint, which can effectively prevent concrete leakage during transportation and ensure the sealing and integrity of concrete transportation.
[0023] 3. This utility model has strong stability. The inner groove of the clamp fits tightly with the pump pipe clamp. Through the linkage mechanism of the pull rod, connecting rod and slider, the clamp can evenly and firmly clamp the pump pipe. During the concrete pumping process, it can withstand greater pressure and vibration and is not easy to loosen, thus ensuring the stability and reliability of the pump pipe connection.
[0024] 4. This utility model, through the cooperation of the pawl and the limiting rod, can limit the tie rod and prevent it from loosening due to vibration or other reasons during concrete pumping. This ensures that the connecting device is always in a stable working state, effectively avoids safety accidents, and protects the lives of construction personnel and the smooth progress of the project. Attached Figure Description
[0025] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0026] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0027] Figure 2 This is a schematic diagram of the left-side structure of this utility model;
[0028] Figure 3 This is a front view structural diagram of the present utility model;
[0029] Figure 4 This utility model Figure 3 A schematic diagram of the AA cross-sectional structure;
[0030] Figure 5 This is a schematic diagram of the adjusting block structure of this utility model.
[0031] In the diagram: 1. Connecting cylinder; 2. Pump pipe; 3. Clamp; 4. Slider; 5. Connecting rod; 6. Pull rod; 7. Adjusting seat; 8. Adjusting block; 9. Screw; 10. Sealing ring; 11. Slide seat; 20. Connecting joint; 21. Snap ring; 30. Ring groove; 31. Short rod; 60. Pull handle; 61. Limiting rod; 70. Rotary seat; 71. Guide bar; 80. Screw hole; 81. Guide groove; 82. Pawl; 90. End block; 91. Bolt. Detailed Implementation
[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0033] Example: Reference Figures 1-5 The quick connection device for a concrete conveying pump pipe shown includes a pump pipe 2, a connector 20 at one end of the pump pipe 2, a retaining ring 21 next to the connector 20, and further includes:
[0034] The connecting cylinder 1 has an adjustment seat 7 on its top. The adjustment seat 7 has an adjustment block 8 that can be adjusted forward and backward. Both ends of the adjustment block 8 are connected to pawls 82 by torsion springs. Pawls 82 can be flipped forward and reset. Both the left and right sides of the front and rear ends of the connecting cylinder 1 are symmetrically provided with slides 11. A slider 4 slides longitudinally in the slide 11.
[0035] Two sets of clamps 3 are provided on both the front and rear sides of the connecting cylinder 1. The two sets of clamps 3 on each side are symmetrically arranged vertically. The inner side of the clamp 3 is provided with an annular groove 30 to cooperate with the retaining ring 21. The left and right ends of the clamp 3 are hinged to the slider 4 through the short rod 31.
[0036] Pull rod 6 is hinged to the middle of both sides of the connecting cylinder 1. Pull rod 6 is hinged to slider 4 through connecting rod 5. The two sets of connecting rods 5 on the same pull rod 6 are symmetrical about each other with the hinge point between pull rod 6 and connecting cylinder 1 as the center.
[0037] A handle 60 and a limiting rod 61 are connected between the two sets of pull rods 6. The limiting rod 61 is adapted to the pawl 82, and the pawl 82 can limit the limiting rod 61.
[0038] As one implementation method in this embodiment, to achieve the adjustment and positioning of the adjusting block 8, such as... Figure 1 , Figure 2 , Figure 4 , Figure 5 As shown, the front and rear ends of the top surface of the adjusting seat 7 are provided with rotating seats 70, and the two sets of rotating seats 70 are rotatably connected by a screw 9. The adjusting block 8 is provided with a screw hole 80, and the screw 9 is threaded in the screw hole 80.
[0039] As one implementation method in this embodiment, to maintain the stability of the adjusting block 8, such as Figures 1 to 3 as well as Figure 5 As shown, the top surface of the adjusting seat 7 is provided with symmetrical guide bars 71. The guide bars 71 are parallel to the axis of the screw 9. The bottom of the adjusting block 8 is provided with a guide groove 81, and the guide bars 71 are slidably connected in the guide groove 81.
[0040] As one implementation method in this embodiment, to facilitate direct rotation of the adjusting screw 9, such as Figures 2 to 4 As shown, one end of the screw 9 is provided with an end block 90, and the end block 90 is provided with a socket. The socket is perpendicular to the axis of the screw 9, and a plug 91 is inserted into the socket.
[0041] As one implementation method in this embodiment, to enhance the sealing between the connecting cylinder 1 and the pump pipe 2, such as Figure 1 , Figure 4 As shown, each end of the connecting cylinder 1 is provided with a sealing groove, and a sealing ring 10 is installed in the sealing groove. The sealing ring 10 is made of rubber and is located between the connecting cylinder 1 and the connector 20.
[0042] As one implementation method in this embodiment, to enhance the stability of the clamp 3 holding the retaining ring 21, such as... Figure 1 , Figure 2 As shown, the slide block 11 is provided with a slide groove, and the slider 4 is slidably connected in the slide groove. The end of the slide groove facing the pump pipe 2 is provided with a rounded corner. When the slider 4 moves along the slide groove towards the middle of the connecting cylinder 1, the slide groove makes the included angle of the two sets of short rods 31 on the slider 4 smaller.
[0043] The working principle of this utility model is as follows: When connecting pump pipe 2, the pull rod 6 is located at the rear of the connecting cylinder 1, and the slider 4 is located at one end outside the slide block 11. The included angle between the two short rods 31 on the slider 4 is unrestricted. Pulling the clamp 3 outward can expand the docking space of the pump pipe 2. First, connect the two pump pipes 2 to be connected to the connecting cylinder 1, so that the butt joint 20 enters the connecting cylinder 1 and is aligned with the sealing ring 10. The retaining ring 21 is aligned with the annular groove 30 on the inner side of the clamp 3. Then, pull the handle 60, which drives the pull rod. 6. When the pull rod 6 rotates, the sliders 4 at both ends move towards each other in the grooves of the slide block 11 via the connecting rod 5. The sliders 4 move the clamp 3 via the short rod 31. During this process, the short rod 31 enters the groove, and the groove reduces the included angle between the short rods 31, causing the annular groove 30 of the clamp 3 to tightly clamp the retaining ring 21 of the pump pipe 2, achieving the initial connection of the pump pipe 2. Afterward, as the pull rod 6 moves forward, the clamp 3 and the retaining ring 21 cooperate, making the butt joint 20 tightly engage with the sealing ring 10. At the same time, the limiting rod 61 rotates with the pull rod 6. Moving forward, when the limiting rod 61 moves to the position of the pawl 82, the pawl 82 is pushed forward and flipped by the limiting rod 61. After the limiting rod 61 passes, it is reset by the torsion spring, thereby preventing the limiting rod 61 from moving backward and limiting the pull rod 6 to prevent it from loosening, ensuring the clamping force of the clamp 3 on the pump pipe 2. Since the sealing ring 10 is located between the connecting cylinder 1 and the butt joint 20, when the clamp 3 clamps the retaining ring 21 and pulls the pump pipe 2, the sealing ring 10 is squeezed and deformed, tightly fitting the butt joint 20, realizing the connection. The sealing of the position; finally, according to the actual connection between the pump pipe 2 and the connecting cylinder 1, by rotating the screw 9 between the rotating seat 70 on the adjusting seat 7, and using the threaded connection between the screw 9 and the screw hole 80, the position of the adjusting block 8 is changed, so that the adjusting block 8 moves forward, and the pawl 82 can fasten the limiting rod 61, thereby enhancing the connection strength between the pump pipe 2 and the connecting cylinder 1. The guide groove 81 and the guide bar 71 cooperate to enhance the stability of the adjusting block 8. The plug 91 is inserted into the insertion hole of the end block 90, which can increase the operating torque and improve the convenience of rotating the screw 9.
[0044] The electromechanical connections involved in this utility model are common practices used by those skilled in the art, and technical inspiration can be obtained through a limited number of experiments; they are common knowledge.
[0045] Components not described in detail in this article are existing technologies.
[0046] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A quick connection device for a concrete conveying pump pipe, comprising a pump pipe (2), wherein a connector (20) is provided at the end of the pump pipe (2), and a retaining ring (21) is provided next to the connector (20), characterized in that, Also includes: A connecting cylinder (1) is provided with an adjusting seat (7) at the top. The adjusting seat (7) is provided with an adjusting block (8) that can be adjusted forward and backward. Both ends of the adjusting block (8) are connected to pawls (82) by torsion springs. The pawls (82) can be flipped forward and reset. Both the left and right sides of the front and rear ends of the connecting cylinder (1) are symmetrically provided with slides (11). A slider (4) slides longitudinally in the slide (11). Clamps (3), two sets of clamps (3) are provided on the front and rear sides of the connecting cylinder (1). The two sets of clamps (3) on each side are symmetrically arranged up and down. The inner side of the clamp (3) is provided with an annular groove (30) to cooperate with the retaining ring (21). The left and right ends of the clamp (3) are hinged to the slider (4) through short rods (31). Pull rod (6), the pull rod (6) is hinged to the middle of both sides of the connecting cylinder (1). The pull rod (6) is hinged to the slider (4) through the connecting rod (5). The two sets of connecting rods (5) on the same pull rod (6) are symmetrical about each other with the hinge point between the pull rod (6) and the connecting cylinder (1) as the center. A handle (60) and a limiting rod (61) are connected between the two sets of pull rods (6). The limiting rod (61) is adapted to the pawl (82), and the pawl (82) can limit the limiting rod (61).
2. The quick connection device for a concrete conveying pump pipe according to claim 1, characterized in that: The front and rear ends of the top surface of the adjusting seat (7) are provided with rotating seats (70), and a screw (9) is rotatably connected between the two sets of rotating seats (70). The adjusting block (8) is provided with a screw hole (80), and the screw (9) is threaded in the screw hole (80).
3. The quick connection device for a concrete conveying pump pipe according to claim 2, characterized in that: The top surface of the adjusting seat (7) is provided with symmetrical guide bars (71), the guide bars (71) are parallel to the axis of the screw (9), and the bottom of the adjusting block (8) is provided with a guide groove (81), in which the guide bars (71) are slidably connected.
4. The quick connection device for a concrete conveying pump pipe according to claim 2, characterized in that: One end of the screw (9) is provided with an end block (90), and the end block (90) is provided with a socket. The socket is perpendicular to the axis of the screw (9), and a plug (91) is inserted into the socket.
5. The quick connection device for a concrete conveying pump pipe according to claim 1, characterized in that: The ends of the connecting cylinder (1) are provided with sealing grooves, and sealing rings (10) are installed in the sealing grooves. The sealing rings (10) are made of flexible material and are located between the connecting cylinder (1) and the connector (20).
6. The quick connection device for a concrete conveying pump pipe according to claim 1, characterized in that: The slide block (11) is provided with a slide groove, and the slider (4) is slidably connected in the slide groove. The end of the slide groove facing the pump pipe (2) is provided with a rounded corner. When the slider (4) moves along the slide groove toward the middle of the connecting cylinder (1), the slide groove makes the included angle of the two sets of short rods (31) on the slider (4) smaller.