Concrete pump truck s-valve wear ring replacement assembly

Abstract

The utility model discloses a concrete pump truck S valve wear -resisting ring replacement subassembly, including the wear -resisting ring of the sleeve setting in the S valve body discharge pipe end part, the surface of S valve body discharge end is provided with the installation slot of wear -resisting ring sleeve setting, the inner chamber of installation slot is provided with annular groove, the surface annular array of wear -resisting ring is provided with four screw nails, the end of screw nail extends to the inner chamber of annular groove, wear -resisting ring and the end of installation slot inner chamber are provided with a plurality of limit pin, the utility model discloses the surface of installation slot is sleeved with wear -resisting ring, then adopts screwdriver to tighten screw nail, makes the steel ball on screw nail and rests in the inner wall of annular groove, wear -resisting ring can also rotate on the surface of installation slot during, after arc groove no.

Description

Technical Field

[0001] This utility model belongs to the technical field of concrete pump trucks, and in particular relates to a replacement component for the wear ring of the S valve of a concrete pump truck. Background Technology

[0002] The S-valve is located inside the hopper of the concrete pump truck, connecting the conveying cylinder and the conveying pipe. The valve body is shaped like the letter "S". One end is connected to the outlet of the concrete pump, and one end of the discharge port is fixed. The other end can swing back and forth under the action of the piston rods of two hydraulic cylinders, and is connected to the left and right concrete cylinders respectively.

[0003] The wear ring of the S-valve is usually installed at the end of the S-valve discharge pipe by welding. In the daily use of the pump truck, the wear ring needs to be inspected regularly to observe its wear condition. Worn wear rings are usually removed with a flame gun. Therefore, we designed a wear ring replacement component for the S-valve of the concrete pump truck, which uses screws and insert rods to ensure that the wear ring is installed securely and removed easily. Utility Model Content

[0004] The purpose of this utility model is to provide a replacement component for the wear ring of the S valve of a concrete pump truck. It has the advantages of using screws and insert rods to ensure that the wear ring is securely installed and easy to disassemble, thereby solving the above-mentioned technical problems.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: a wear-resistant ring replacement component for an S-valve of a concrete pump truck, comprising a wear-resistant ring sleeved on the end of the discharge pipe of the S-valve body, wherein the surface of the discharge end of the S-valve body is provided with an installation groove for the wear-resistant ring to be sleeved, the inner cavity of the installation groove is provided with an annular groove, four screws are arranged in an annular array through the surface of the wear-resistant ring, the ends of the screws extend into the inner cavity of the annular groove, and multiple limiting pins are arranged through the end of the wear-resistant ring and the inner cavity of the installation groove, the inner cavity of the installation groove is provided with multiple arc-shaped grooves I that are adapted to the limiting pins in an annular array, and the inner cavity of the wear-resistant ring is provided with multiple arc-shaped grooves II that are adapted to the limiting pins in an annular array.

[0006] Preferably, internal threads are provided deep within the inner cavities of both the first and second arc-shaped grooves, and an external thread adapted to the internal threads is provided on the surface of one end of the limiting pin.

[0007] Preferably, the surface of the wear-resistant ring has four threaded countersunk holes arranged in an annular array for screw installation.

[0008] Preferably, the screw includes an external threaded post that is threaded to a countersunk hole, and a rotatable steel ball is embedded at the end of the external threaded post, the steel ball being rolled into the inner cavity of an annular groove.

[0009] Preferably, an operating plate is fixedly connected to the end of the external threaded column away from the steel ball, and a cross groove is provided on the operating plate.

[0010] Preferably, the end of the limiting pin is provided with a cross groove.

[0011] The beneficial effects of this utility model are:

[0012] 1. This utility model involves placing a wear-resistant ring on the surface of the mounting groove, then tightening the screw with a screwdriver, so that the steel ball on the screw abuts against the inner wall of the annular groove. During this process, the wear-resistant ring can rotate on the surface of the mounting groove. After the first arc groove and the second arc groove are aligned, the limiting pin is inserted into the inner cavity of the combination of the first arc groove and the second arc groove and screwed in, so that the wear-resistant ring is firmly installed at the end of the discharge port of the S valve body. This achieves the purpose of using screws and insert rods to ensure that the wear-resistant ring is securely installed and easy to disassemble.

[0013] 2. By using screws, this utility model can limit the annular groove on the surface of the mounting groove, effectively preventing the annular groove from slipping off the surface of the mounting groove.

[0014] 3. The present invention, through the setting of the second cross groove, makes it convenient for users to turn the limit pin, and avoids the limit pin being exposed on the outside of the wear-resistant ring and the S valve body. Attached Figure Description

[0015] The advantages of the present invention, as described above and / or in the following detailed description in conjunction with the accompanying drawings, will become clearer and more readily understood. These drawings are merely illustrative and do not limit the scope of the present invention.

[0016] Figure 1 This is a perspective view of one embodiment of the present utility model;

[0017] Figure 2 This is a three-dimensional disassembled schematic diagram of one embodiment of the present utility model;

[0018] Figure 3 This is a three-dimensional schematic diagram of a screw according to an embodiment of the present invention;

[0019] Figure 4 This is a three-dimensional schematic diagram of a limiting pin according to an embodiment of the present utility model.

[0020] The attached diagram lists the components represented by each number as follows:

[0021] 1. S valve body, 2. Wear-resistant ring, 3. Mounting groove, 4. Annular groove, 5. Screw, 51. External thread, 52. Steel ball, 53. Operating plate, 54. Cross groove one, 6. Limit pin, 7. Arc groove one, 8. Arc groove two, 9. Threaded countersunk hole, 10. Cross groove two. Detailed Implementation

[0022] In the following description, embodiments of the wear ring replacement assembly for the S-valve of the concrete pump truck according to the present invention will be described with reference to the accompanying drawings.

[0023] Figure 1-4 This invention illustrates a concrete pump truck S-valve wear ring replacement assembly according to an embodiment of the present invention. It includes a wear ring 2 fitted onto the discharge pipe end of the S-valve body 1. The surface of the discharge end of the S-valve body 1 has an installation groove 3 for fitting the wear ring 2. An annular groove 4 is formed within the inner cavity of the installation groove 3. Four screws 5 are arranged in an annular array through the surface of the wear ring 2. Four threaded countersunk holes 9 are formed in an annular array on the surface of the wear ring 2 for mounting the screws 5. The ends of the screws 5 extend into the inner cavity of the annular groove 4. Each screw 5 includes an externally threaded post 51 threadedly connected to the threaded countersunk hole 9. A rotatable steel ball 52 is embedded in the end of the externally threaded post 51 and rolls within the inner cavity of the annular groove 4. An operating plate 53 is fixedly connected to the end of the externally threaded post 51 away from the steel ball 52. A cross-shaped notch is formed on the operating plate 53. The groove 54, with the screw 5, can limit the annular groove 4 on the surface of the mounting groove 3, effectively preventing the annular groove 4 from slipping off the surface of the mounting groove 3. Multiple limiting pins 6 are provided through the end of the wear-resistant ring 2 and the inner cavity of the mounting groove 3. Multiple arc-shaped grooves 7 adapted to the limiting pins 6 are provided in an annular array in the inner cavity of the mounting groove 3. Multiple arc-shaped grooves 8 adapted to the limiting pins 6 are provided in an annular array in the inner cavity of the wear-resistant ring 2. Internal threads are provided deep in the inner cavity of both arc-shaped grooves 7 and arc-shaped grooves 8. External threads adapted to the internal threads are provided on the surface of one end of the limiting pin 6. Cross grooves 10 are provided at the end of the limiting pin 6. The setting of cross grooves 10 allows the user to easily tighten the limiting pin 6, preventing the limiting pin 6 from being exposed on the outside of the wear-resistant ring 2 and the S valve body 1.

[0024] Working principle: When using this utility model, to install the wear-resistant ring 2, simply place the wear-resistant ring 2 into the inner cavity of the mounting groove 3, then take a screwdriver and rotate the operating plate 53. The external threaded post 51 drives the steel ball 52 to move into the inner cavity of the annular groove 4 until the steel ball 52 abuts against the inner wall of the annular groove 4. During this process, the wear-resistant ring 2 can also rotate within the inner cavity of the mounting groove 3. The annular groove 4, extending into the inner cavity of the steel ball 52, prevents the wear-resistant ring 2 from detaching from the inner cavity of the mounting groove 3. Rotating the wear-resistant ring 2 opens the butterfly-shaped groove... Align 7 with the arc groove 8, insert the limiting pin 6 into the inner cavity of the arc groove 7 and arc groove 8, then take a screwdriver and insert it into the inner cavity of the cross groove 10 to rotate the limiting pin 6 until the limiting pin 6 is completely submerged in the inner cavity of the arc groove 7 and arc groove 8. When disassembling the wear ring 2, simply operate the limiting pin 6 to disengage from the inner cavity of the arc groove 7 and arc groove 8, then operate the screw 5 to rotate, so that the steel ball 52 disengages from the inner cavity of the annular groove 4, and a new wear ring 2 can be replaced.

[0025] In summary: This concrete pump truck S-valve wear ring replacement assembly involves placing the wear ring 2 on the surface of the mounting groove 3, then tightening the screw 5 with a screwdriver, causing the steel ball 52 on the screw 5 to press against the inner wall of the annular groove 4. During this process, the wear ring 2 can rotate on the surface of the mounting groove 3. After the arc groove 1 7 and the arc groove 2 8 are aligned, the limiting pin 6 is inserted into the inner cavity of the combination of arc groove 1 7 and arc groove 2 8 and screwed in, so that the wear ring 2 is firmly installed at the end of the discharge port of the S-valve body 1. This achieves the purpose of using screws and insert rods to ensure reliable installation and convenient disassembly of the wear ring.

Claims

1. A replacement assembly for the wear ring of the S-valve of a concrete pump truck, characterized in that, The device includes a wear-resistant ring (2) fitted onto the end of the discharge pipe of the S valve body (1). The surface of the discharge end of the S valve body (1) is provided with an installation groove (3) for the wear-resistant ring (2) to be fitted. The inner cavity of the installation groove (3) is provided with an annular groove (4). Four screws (5) are arranged in an annular array on the surface of the wear-resistant ring (2). The ends of the screws (5) extend into the inner cavity of the annular groove (4). Multiple limiting pins (6) are arranged in an annular array at the end of the wear-resistant ring (2) and the inner cavity of the installation groove (3). Multiple arc-shaped grooves (7) that are adapted to the limiting pins (6) are arranged in an annular array in the inner cavity of the installation groove (3). Multiple arc-shaped grooves (8) that are adapted to the limiting pins (6) are arranged in an annular array in the inner cavity of the wear-resistant ring (2).

2. The concrete pump truck S-valve wear ring replacement assembly according to claim 1, characterized in that, Both the inner cavities of the first arc groove (7) and the second arc groove (8) are provided with internal threads, and the surface of one end of the limiting pin (6) is provided with an external thread that matches the internal thread.

3. The concrete pump truck S-valve wear ring replacement assembly according to claim 2, characterized in that, The wear-resistant ring (2) has four threaded countersunk holes (9) arranged in an annular array on its surface for screw (5) installation.

4. The concrete pump truck S-valve wear ring replacement assembly according to claim 3, characterized in that, The screw (5) includes an external threaded post (51) that is threaded to a countersunk hole (9), and a rotatable steel ball (52) is embedded at the end of the external threaded post (51), the steel ball (52) being rolled in the inner cavity of the annular groove (4).

5. The concrete pump truck S-valve wear ring replacement assembly according to claim 4, characterized in that, An operating plate (53) is fixedly connected to one end of the external threaded post (51) away from the steel ball (52), and a cross groove (54) is provided on the operating plate (53).

6. The concrete pump truck S-valve wear ring replacement assembly according to claim 5, characterized in that, The end of the limiting pin (6) is provided with a cross groove (10).

Images