Wear-resistant nozzle of concrete pump truck

Abstract

The utility model discloses a wear-resistant nozzle of a concrete pump truck, which comprises a fixing component, and the fixing component comprises a nozzle body, a mounting groove, a silicon carbide rod, an annular wear-resistant insert, a fixing ring, a cavity, a T-shaped rod, a connecting block and a spring. The two T-shaped rods are pulled at the same time to drive the connecting block to move and compress the spring, the connecting block drives the clamping rod to move, the fixing block on the connecting pipe is inserted into the cavity, and when one side of the connecting ring makes contact with one side of the fixing ring, the pulling force on the T-shaped rods is released, and the spring is compressed. The spring in the compressed state resets and drives the clamping rod to be clamped with the clamping groove through the connecting block, the nozzle body and the connecting pipe are fixed, and operation is easy and convenient; through the arrangement of the silicon carbide rod and the annular wear-resistant insert, direct impact of concrete is effectively blocked, and the silicon carbide rod and the annular wear-resistant insert not only have excellent wear resistance, but also can absorb part of impact energy, reduce direct wear to the nozzle body, keep the integrity of the nozzle body and prolong the service life of the nozzle body.

Description

Technical field:

[0001] The utility model relates to the technical field of concrete pump trucks, in particular to a wear-resistant nozzle of a concrete pump truck. Background technology:

[0002] Concrete pump trucks are important equipment in modern construction projects, and their nozzles are key components responsible for transporting concrete to designated locations. However, in actual use, the nozzles of traditional concrete pump trucks generally have problems such as poor wear resistance and short life. Since concrete will produce strong scouring and wear on the inner wall of the nozzle during the high-pressure spraying process, the wear rate of the nozzle is accelerated, which seriously affects the normal operation and construction efficiency of the pump truck. In addition, the nozzles of traditional concrete pump trucks are not easy to disassemble and assemble. Therefore, a wear-resistant nozzle for a concrete pump truck is proposed. Utility model content:

[0003] The utility model aims to provide a wear-resistant nozzle of a concrete pump truck to solve one of the problems raised in the above-mentioned background technology.

[0004] The utility model is implemented by the following technical scheme: a wear-resistant nozzle of a concrete pump truck, comprising a fixing assembly, wherein the fixing assembly comprises a nozzle body, a mounting groove, a silicon carbide rod, an annular wear-resistant inlay, a fixing ring, a cavity, a T-shaped rod, a connecting block, a spring, a clamping rod, a connecting pipe, a connecting ring, a fixing block, and a clamping groove;

[0005] The nozzle body is provided with an installation groove on the inner wall of the nozzle body, and a plurality of silicon carbide rods are fixedly connected to the inner wall of the installation groove; an annular wear-resistant inlay is fixedly connected to the inner wall of the nozzle body, and one side of the annular wear-resistant inlay is fixedly connected to one side of the silicon carbide rod; a fixing ring is fixedly connected to the nozzle body, and two cavities are provided on the fixing ring, and T-shaped rods are provided on both sides of the fixing ring, and the ends of the T-shaped rods extend into the corresponding cavities and are fixedly connected with connecting blocks, a spring is welded between one side of the connecting block and the inner wall of one side of the corresponding cavity, and two clamping rods are fixedly connected to the other side of the connecting block, and a connecting pipe is movably contacted with the right side of the nozzle body, and a connecting ring is fixedly connected to the connecting pipe, and one side of the connecting ring is fixedly connected to two fixing blocks, and one side of the fixing block is provided with two clamping grooves, and the clamping grooves are clamped with the corresponding clamping rods.

[0006] As a further preferred embodiment of the present technical solution: the spring is movably sleeved on the corresponding T-shaped rod.

[0007] As a further preferred embodiment of the present technical solution: a square hole is provided on the right inner wall of the cavity.

[0008] As a further preferred embodiment of the technical solution: a positioning hole is provided on an inner wall of one side of the cavity, and the inner wall of the positioning hole is slidably connected to the outer side of the corresponding T-shaped rod.

[0009] As a further preferred embodiment of the present technical solution: the plurality of silicon carbide rods are arranged in a cone shape.

[0010] As a further preferred embodiment of the present technical solution: the large diameter end of the silicon carbide rod is close to the inlet end of the nozzle body, and the small diameter end of the silicon carbide rod is close to the outlet end of the nozzle body.

[0011] As a further preferred embodiment of the present technical solution: the inner wall of the square hole is in movable contact with the outer side of the corresponding fixing block.

[0012] Advantages of the utility model:

[0013] 1. The utility model pulls two T-shaped rods at the same time to drive the connecting block to move and compress the spring. The connecting block drives the clamping rod to move, and the fixing block on the connecting pipe is inserted into the corresponding cavity through the square hole. When one side of the connecting ring contacts one side of the fixing ring, the pulling force on the T-shaped rod is released, and the spring in the compressed state is reset. The spring drives the clamping rod to be clamped with the clamping groove through the connecting block, and the nozzle body is fixed to the connecting pipe. The operation is simple and convenient.

[0014] 2. The utility model effectively blocks the direct impact of concrete by setting silicon carbide rods and annular wear-resistant inlays. They not only have excellent wear resistance, but also can absorb part of the impact energy and reduce direct wear on the nozzle body. Therefore, during long-term concrete spraying operations, the nozzle body can be kept intact and its service life can be extended. Description of the drawings:

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the cutaway three-dimensional structure of the nozzle body of the utility model;

[0018] Figure 3 This is a schematic diagram of the three-dimensional structure of the connection pipe and the fixing block of the utility model;

[0019] Figure 4It is a schematic diagram of the cut-away three-dimensional structure of the fixing ring of the utility model.

[0020] In the figure: 1. fixing assembly; 2. nozzle body; 3. mounting groove; 4. silicon carbide rod; 5. annular wear-resistant inlay; 6. fixing ring; 7. cavity; 8. T-shaped rod; 9. connecting block; 10. spring; 11. clamping rod; 12. connecting pipe; 13. connecting ring; 14. fixing block; 15. clamping groove; 16. square hole. Specific implementation method:

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example

[0023] See also Figure 1-4 The utility model provides a technical solution: a wear-resistant nozzle of a concrete pump truck, comprising a fixing assembly 1, the fixing assembly 1 comprising a nozzle body 2, a mounting groove 3, a silicon carbide rod 4, an annular wear-resistant inlay 5, a fixing ring 6, a cavity 7, a T-shaped rod 8, a connecting block 9, a spring 10, a clamping rod 11, a connecting pipe 12, a connecting ring 13, a fixing block 14, and a clamping groove 15;

[0024] A mounting groove 3 is provided on the inner wall of the nozzle body 2, and a plurality of silicon carbide rods 4 are fixedly connected to the inner wall of the mounting groove 3. An annular wear-resistant mosaic 5 is fixedly connected to the inner wall of the nozzle body 2, and one side of the annular wear-resistant mosaic 5 is fixedly connected to one side of the silicon carbide rod 4. A fixing ring 6 is fixedly connected to the nozzle body 2, and two cavities 7 are provided on the fixing ring 6. T-shaped rods 8 are provided on both sides of the fixing ring 6, and the ends of the T-shaped rods 8 extend into the corresponding cavities 7 and are fixedly connected with connecting blocks 9. A spring 10 is welded between one side of the connecting block 9 and the inner wall of one side of the corresponding cavity 7, and two clamping rods 11 are fixedly connected to the other side of the connecting block 9. A connecting pipe 12 is movably contacted on the right side of the nozzle body 2, and a connecting ring 13 is fixedly connected to the connecting pipe 12. Two fixing blocks 14 are fixedly connected to one side of the connecting ring 13, and two clamping grooves 15 are provided on one side of the fixing block 14. The clamping grooves 15 are clamped with the corresponding clamping rods 11, and the two T-shaped rods 8 are pulled at the same time, and the T-shaped rods 8 drive the corresponding connecting blocks 9 to move , the connecting block 9 compresses the corresponding spring 10 during the movement, and the connecting block 9 drives the corresponding clamping rod 11 to move, and then the fixing block 14 on the connecting pipe 12 is inserted into the corresponding cavity 7 through the square hole 16. When one side of the connecting ring 13 contacts one side of the fixing ring 6, the tension on the T-shaped rod 8 is relaxed at this time, and the spring 10 in the compressed state is reset. Under the action of the elastic force of the spring 10 itself, the spring 10 drives the corresponding connecting block 9 to move, and the connecting block 9 drives the corresponding clamping rod 11 to be clamped with the clamping groove 15, so as to fix the nozzle body 2 and the connecting pipe 12. When disassembling, just pull the T-shaped rod 8. The operation is simple and convenient. Through the arrangement of the silicon carbide rod 4 and the annular wear-resistant mosaic 5, the direct impact of concrete is effectively blocked. They not only have excellent wear resistance, but also can absorb part of the impact energy and reduce the direct wear on the nozzle body 2. Therefore, in the long-term concrete spraying operation, the integrity of the nozzle body 2 can be maintained and its service life can be extended.

[0025] In this embodiment, specifically: the spring 10 is movably sleeved on the corresponding T-shaped rod 8, and the arrangement of the spring 10 plays a role of automatic resetting.

[0026] In this embodiment, specifically: a square hole 16 is opened on the right inner wall of the cavity 7, and the inner wall of the square hole 16 is in active contact with the outer side of the corresponding fixing block 14. The setting of the fixing block 14 plays a connecting role.

[0027] In this embodiment, specifically: a positioning hole is opened on the inner wall of one side of the cavity 7, and the inner wall of the positioning hole is slidably connected to the outer side of the corresponding T-shaped rod 8. The setting of the T-shaped rod 8 plays a connecting role.

[0028] In this embodiment, specifically: a plurality of silicon carbide rods 4 are arranged in a conical shape, the large diameter end of the silicon carbide rod 4 is close to the inlet end of the nozzle body 2, and the small diameter end of the silicon carbide rod 4 is close to the outlet end of the nozzle body 2, which not only enhances the impact resistance and wear resistance of the nozzle body 2, but also improves the concrete spraying efficiency.

[0029] Working principle or structural principle, when in use, the nozzle body 2 and the connecting tube 12 are in a separated state. When installing, pull the two T-shaped rods 8 at the same time, the T-shaped rod 8 drives the corresponding connecting block 9 to move, and the connecting block 9 compresses the corresponding spring 10 during the movement. At the same time, the connecting block 9 drives the corresponding clamping rod 11 to move, and then the fixing block 14 on the connecting tube 12 is inserted into the corresponding cavity 7 through the square hole 16. When one side of the connecting ring 13 contacts one side of the fixing ring 6, the pulling force on the T-shaped rod 8 is released, and the spring 10 in the compressed state is reset. Under the action of elastic force, the spring 10 drives the corresponding connecting block 9 to move, and the connecting block 9 drives the corresponding clamping rod 11 to clamp with the clamping groove 15, so as to fix the nozzle body 2 and the connecting pipe 12. When disassembling, just pull the T-shaped rod 8. The operation is simple and convenient. Through the arrangement of the silicon carbide rod 4 and the annular wear-resistant mosaic 5, the direct impact of concrete is effectively blocked. They not only have excellent wear resistance, but also can absorb part of the impact energy and reduce the direct wear on the nozzle body 2. Therefore, in the long-term concrete spraying operation, the integrity of the nozzle body 2 can be maintained and its service life can be extended.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A wear-resistant nozzle for a concrete pump truck, characterized in that: The invention comprises a fixing assembly (1), wherein the fixing assembly (1) comprises a nozzle body (2), a mounting groove (3), a silicon carbide rod (4), an annular wear-resistant inlay (5), a fixing ring (6), a cavity (7), a T-shaped rod (8), a connecting block (9), a spring (10), a clamping rod (11), a connecting pipe (12), a connecting ring (13), a fixing block (14), and a clamping groove (15); The inner wall of the nozzle body (2) is provided with a mounting groove (3), and a plurality of silicon carbide rods (4) are fixedly connected to the inner wall of the mounting groove (3). An annular wear-resistant mosaic (5) is fixedly connected to the inner wall of the nozzle body (2), and one side of the annular wear-resistant mosaic (5) is fixedly connected to one side of the silicon carbide rod (4). A fixing ring (6) is fixedly connected to the nozzle body (2), and two cavities (7) are provided on the fixing ring (6). T-shaped rods (8) are provided on both sides of the fixing ring (6), and the ends of the T-shaped rods (8) extend into the corresponding cavities (7). A connecting block (9) is fixedly connected thereto, a spring (10) is welded between one side of the connecting block (9) and an inner wall of one side of the corresponding cavity (7), two clamping rods (11) are fixedly connected thereto on the other side of the connecting block (9), a connecting tube (12) is movably contacted on the right side of the nozzle body (2), a connecting ring (13) is fixedly connected to the connecting tube (12), one side of the connecting ring (13) is fixedly connected to two fixing blocks (14), one side of the fixing block (14) is provided with two clamping grooves (15), and the clamping grooves (15) are clamped with the corresponding clamping rods (11).

2. The wear-resistant nozzle of a concrete pump truck according to claim 1, characterized in that: The spring (10) is movably sleeved on the corresponding T-shaped rod (8).

3. The wear-resistant nozzle of a concrete pump truck according to claim 1, characterized in that: A square hole (16) is provided on the right inner wall of the cavity (7).

4. The wear-resistant nozzle of a concrete pump truck according to claim 1, characterized in that: A positioning hole is provided on an inner wall of one side of the cavity (7), and the inner wall of the positioning hole is slidably connected to the outer side of the corresponding T-shaped rod (8).

5. The wear-resistant nozzle of a concrete pump truck according to claim 1, characterized in that: The plurality of silicon carbide rods (4) are arranged in a cone shape.

6. The wear-resistant nozzle of a concrete pump truck according to claim 5, characterized in that: The large diameter end of the silicon carbide rod (4) is close to the inlet end of the nozzle body (2), and the small diameter end of the silicon carbide rod (4) is close to the outlet end of the nozzle body (2).

7. The wear-resistant nozzle of a concrete pump truck according to claim 3, characterized in that: The inner wall of the square hole (16) is in movable contact with the outer side of the corresponding fixing block (14).

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