Concrete vibrating spear assembly

Abstract

The utility model discloses a concrete vibrating spear assembly, which belongs to the technical field of concrete vibrating spears and comprises a shell, and a first sliding fit part is arranged on the peripheral wall of the shell; the connecting hose is connected with the shell; a second sliding fit part is arranged on the inner circumferential wall of the sleeve, the first sliding fit part is in sliding fit with the second sliding fit part so that the shell can be movably connected with the second shell, and the shell moves relative to the second shell so that the shell can be contained in the second shell or move out of the second shell. According to the concrete vibrating rod assembly designed by the utility model, a worker can adjust the effective working length of the concrete vibrating rod assembly as required, so that the worker can conveniently use the concrete vibrating rod assembly to stamp concrete at different depths and stamp the concrete in a narrow space; and the convenience of the concrete tamping work is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of concrete vibrating rods, in particular to a concrete vibrating rod assembly. Background Art

[0002] In the related art, a concrete vibrator (also called an inserted vibrator) is used during the concrete pouring process to help compact the concrete, remove air bubbles, and ensure that the concrete is evenly distributed and fills all spaces in the formwork. In the prior art, a concrete vibrator includes a vibrator and a connecting hose. The vibrator vibrates to compact the concrete. When the concrete is deep or when compacting the concrete in a narrow space, the worker needs to adjust the position of the vibrator. Since the vibrator is small in length, the worker needs to hold the connecting hose to adjust the position of the vibrator. However, the characteristics of the connecting hose make it difficult for the worker to adjust the position of the vibrator. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to propose a concrete vibrator assembly. According to the concrete vibrator assembly designed by the utility model, the staff can adjust the effective working length of the concrete vibrator assembly as needed, so that it is convenient for the staff to use the concrete vibrator assembly of the present application for concrete compaction work at different depths and compaction of concrete in narrow spaces, thereby improving the convenience of concrete compaction work.

[0004] In order to achieve the above object, the utility model provides the following technical solutions:

[0005] The utility model provides a concrete vibrator assembly, comprising: a shell, an electrical component is arranged in the shell, and a first sliding fitting portion is arranged on the outer peripheral wall of the shell; a connecting hose, the connecting hose is connected to the shell, an electrical connector is arranged in the connecting hose, and the electrical connector is electrically connected to the electrical component; a sleeve, the inner peripheral wall of the sleeve is provided with a second sliding fitting portion, the first sliding fitting portion and the second sliding fitting portion are slidingly matched to allow the shell to be movably connected to the second shell, and the shell moves relative to the second shell to allow itself to be accommodated in the second shell or moved outside the second shell.

[0006] According to the concrete vibrator rod assembly of the utility model, a first sliding fitting portion is provided on the outer peripheral wall of the shell, and a second sliding fitting portion is provided on the inner peripheral wall of the sleeve, and the first sliding fitting portion cooperates with the second sliding fitting portion to allow the sleeve to be movably sleeved on the outer periphery of the shell. The staff can adjust the effective working length of the concrete vibrator rod assembly as needed, so that it is convenient for the staff to apply the concrete vibrator rod assembly of the present application to concrete compacting work at different depths and to compact concrete in a narrow space, thereby improving the convenience of concrete compacting work. At the same time, the vibration of the shell can be transmitted to the sleeve through the first sliding fitting portion and the second sliding fitting portion, so that the effective working length of the concrete vibrator rod assembly is larger, so that the concrete vibrator rod assembly has a higher compacting efficiency for concrete.

[0007] Furthermore, the outer peripheral wall of the shell is provided with a slide groove extending in the axial direction, and the slide groove is configured as the first sliding fitting portion. The inner peripheral wall of the sleeve is provided with a slider extending in the axial direction, and the slider is configured as the second sliding fitting portion. At least a portion of the slider is movably accommodated in the slide groove.

[0008] Furthermore, the outer peripheral wall of the shell is provided with two slide grooves, the two slide grooves are arranged away from each other, and the inner peripheral wall of the sleeve is provided with two sliders, and at least parts of the two sliders are respectively movably accommodated in the corresponding slide grooves.

[0009] Further, the sleeve includes: a first shell and a second shell, the first shell and the second shell extend in the axial direction respectively, and the first shell and the second shell are detachably connected to each other at both ends in the circumferential direction; wherein the sliders are respectively provided at both ends of the first shell in the circumferential direction.

[0010] Furthermore, the slider is provided with an insertion port penetrating in the thickness direction, and the second shell is provided with insertion blocks at both ends in the circumferential direction, and the two insertion blocks are respectively received in the corresponding insertion ports to fix the first shell and the second shell.

[0011] Furthermore, the plug-in block includes: a connecting portion, which extends radially toward the shell, and one end of the connecting portion is connected to the second shell; a plug-in portion, which is arranged at the other end of the connecting portion, and the plug-in portion extends toward the slider; wherein the free end of the plug-in portion extends through the plug interface to the other side of the slider, the plug-in portion is provided with a first fixing portion, the first shell is provided with a second fixing portion corresponding to the first fixing portion, and the first fixing portion and the second fixing portion are fixed by fasteners.

[0012] Furthermore, a first limit block is provided at one end of the shell near the connecting hose, and second limit blocks are respectively provided at both ends of the second shell in the axial direction, and two second limit blocks are connected to the connecting part; wherein the axial projections of the first limit block and the two second limit blocks at least partially overlap, and the first limit block is movably arranged between the two second limit blocks.

[0013] Furthermore, the outer peripheral wall of the shell is provided with a plurality of first fixing holes, which are spaced apart from each other in the axial direction, and the sleeve is provided with a second fixing hole which penetrates in the radial direction, and the fixing piece passes through the second fixing hole and cooperates with one of the first fixing holes to fix the shell and the sleeve.

[0014] Other advantages, objectives and features of the utility model will be described in the following description and will be apparent to those skilled in the art to some extent, or those skilled in the art can be taught from the practice of the utility model. The objectives and other advantages of the utility model can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to make the purpose, technical solution and beneficial effects of the utility model clearer, the utility model provides the following drawings for explanation:

[0016] Figure 1 It is a cross-sectional view of the concrete vibrating rod assembly of the utility model;

[0017] Figure 2 is a cross-sectional view of the second housing of the utility model;

[0018] Figure 3 It is a structural schematic diagram of the shell of the utility model.

[0019] The following are marked in the accompanying drawings:

[0020] 1. Concrete vibrator assembly;

[0021] 10. housing; 11. slide slot; 12. first limit block; 13. first fixing hole;

[0022] 20, sleeve; 21, first housing; 211, slider; 22, second housing; 221, plug-in block; 2211, first fixing portion; 222, second limiting block;

[0023] 30. Fasteners. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model is further described in detail below in conjunction with embodiments and drawings. The schematic implementation manner of the utility model and its description are only used to explain the utility model and are not intended to limit the utility model.

[0025] In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the present invention. However, it is apparent to those skilled in the art that these specific details are not necessary to implement the present invention. In other examples, in order to avoid obscuring the present invention, well-known structures, circuits, materials or methods are not specifically described.

[0026] Throughout the specification, references to "one embodiment," "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment of the present invention. Therefore, the phrases "one embodiment," "an embodiment," "an example," or "an example" appearing in various places throughout the specification do not necessarily all refer to the same embodiment or example. In addition, particular features, structures, or characteristics may be combined in one or more embodiments or examples in any suitable combination and / or sub-combination. In addition, it will be appreciated by those of ordinary skill in the art that the figures provided herein are for illustrative purposes and that the figures are not necessarily drawn to scale. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] In the description of the present invention, it should be understood that the terms "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the scope of protection of the present invention.

[0028] Embodiment 1:

[0029] like Figure 1-Figure 3As shown, the utility model provides a concrete vibrator assembly 1, including: a shell 10, a connecting hose and a sleeve 20, an electrical component is arranged in the shell 10, the outer peripheral wall of the shell 10 is provided with a first sliding fitting portion, the connecting hose is connected to the shell 10, an electrical connector is arranged in the connecting hose, the electrical connector is electrically connected to the electrical component, and the inner peripheral wall of the sleeve 20 is provided with a second sliding fitting portion, the first sliding fitting portion and the second sliding fitting portion are slidingly matched to make the shell 10 and the second shell 10 movably connected, and the shell 10 moves relative to the second shell 10 to accommodate itself in the second shell 10 or move to the outside of the second shell 10.

[0030] In some embodiments, an installation space is provided in the housing 10, an electrical component is provided in the installation space, an open port communicating with the installation space is provided at one end of the housing 10 in the axial direction, a connecting hose is connected to one end of the housing 10 provided with the open port, an electrical connector is provided in the connecting hose, one end of the electrical connector extends through the open port into the installation space and is electrically connected to the electrical component, and the other end of the electrical connector is connected to a power source. The electrical energy of the power source is transmitted to the electrical component through the electrical connector, the electrical component obtains the electrical energy to work, the operation of the electrical component can make the housing 10 vibrate, and the vibration of the housing 10 can realize the compaction of the concrete.

[0031] A sleeve 20 is sleeved on the outer periphery of the shell 10, a first sliding fitting portion is provided on the outer peripheral wall of the shell 10, and a second sliding fitting portion is provided on the inner peripheral wall of the sleeve 20. The first sliding fitting portion cooperates with the second sliding fitting portion to enable the shell 10 to be movably connected to the sleeve 20, and the shell 10 moves relative to the sleeve 20 to be selectively accommodated in the sleeve 20 or to enable at least a portion of the shell 10 to be located outside the sleeve 20.

[0032] It is understandable that the movement of the shell 10 relative to the sleeve 20 allows the staff to adjust the effective working length of the concrete vibrator assembly 1 as needed, so that it is convenient for the staff to use the concrete vibrator assembly 1 of the present application for tamping concrete at different depths and tamping concrete in a narrow space, thereby improving the convenience of the concrete tamping work. It is worth noting that when tamping concrete at different depths and tamping concrete in a narrow space, the staff can hold the sleeve 20 to adjust the external position of the shell 10, which facilitates the position adjustment of the shell 10 and improves the efficiency of the concrete tamping work.

[0033] At the same time, the vibration of the shell 10 can be transmitted to the sleeve 20 through the first sliding fit part and the second sliding fit part, so that the sleeve 20 vibrates together. Therefore, when at least a part of the shell 10 is located outside the sleeve 20, the effective working length of the concrete vibrator assembly 1 is larger, so that the concrete vibrator assembly 1 has a higher compaction efficiency for concrete, thereby improving the work efficiency of the staff.

[0034] Of course, when the concrete vibrator assembly 1 is not in use, the staff can place the shell 10 in the sleeve 20, thereby shortening the axial length of the concrete vibrator assembly 1, thereby reducing the space occupied by the concrete vibrator assembly 1, and facilitating the storage and transportation of the concrete vibrator assembly 1. At the same time, by placing the unused portion of the shell 10 in the protective sleeve 20, the wear and damage to the shell 10 can be reduced, the service life of the shell 10 is extended, and thus the service life of the concrete vibrator assembly 1 is extended.

[0035] According to the concrete vibrator rod assembly 1 of the utility model, a first sliding fitting portion is provided on the outer peripheral wall of the shell 10, and a second sliding fitting portion is provided on the inner peripheral wall of the sleeve 20, and the first sliding fitting portion cooperates with the second sliding fitting portion to allow the sleeve 20 to be movably sleeved on the outer periphery of the shell 10. The staff can adjust the effective working length of the concrete vibrator rod assembly 1 as needed, so that it is convenient for the staff to apply the concrete vibrator rod assembly 1 of the present application to concrete compacting work at different depths and to compact concrete in a narrow space, thereby improving the convenience of concrete compacting work. At the same time, the vibration of the shell 10 can be transmitted to the sleeve 20 through the first sliding fitting portion and the second sliding fitting portion, thereby making the effective working length of the concrete vibrator rod assembly 1 larger, so that the concrete vibrator rod assembly 1 has a higher compacting efficiency for concrete.

[0036] Embodiment 2:

[0037] In this embodiment, based on the first embodiment, the outer peripheral wall of the shell 10 is provided with a slide groove 11 extending in the axial direction, and the slide groove 11 is configured as a first sliding fitting portion. The inner peripheral wall of the sleeve 20 is provided with a slider 211 extending in the axial direction, and the slider 211 is configured as a second sliding fitting portion. At least a portion of the slider 211 is movably accommodated in the slide groove 11.

[0038] It can be understood that a slide groove 11 is arranged on the outer peripheral wall of the shell 10 along the axial direction (i.e., the length direction of the vibration rod), and the slide groove 11 is suitable for providing guidance and constraint for the slider 211 to ensure the linear motion and stability of the shell 10 when sliding; a slider 211 is also arranged on the inner peripheral wall of the sleeve 20 along the axial direction, and at least a part of the slider 211 can be movably accommodated in the slide groove 11 to form a sliding fit with the slide groove 11, so that the shell 10 can slide stably relative to the sleeve 20.

[0039] It is worth noting that when the shell 10 needs to move relative to the sleeve 20, the slider 211 slides in the slide groove 11 to guide the movement path of the shell 10, while limiting the lateral movement of the shell 10, thereby ensuring the straightness and stability of the concrete vibrator rod assembly 1 during use, so that the staff can stably adjust the effective working length of the concrete vibrator rod assembly 1.

[0040] It is worth mentioning that both the slide groove 11 and the slider 211 extend in the axial direction. Therefore, when the housing 10 moves axially relative to the sleeve 20, at least part of the slider 211 in the axial direction is always located in the slide groove 11, and the inner circumferential wall of the slide groove 11 can continuously restrict the inner circumferential wall of the slider 211. Therefore, the above-mentioned arrangement can ensure the straightness of the housing 10 when it moves relative to the sleeve 20.

[0041] According to some embodiments of the utility model, the outer peripheral wall of the housing 10 is provided with two slide grooves 11, and the two slide grooves 11 are arranged away from each other, and the inner peripheral wall of the sleeve 20 is provided with two sliders 211, and at least parts of the two sliders 211 are respectively movably received in the corresponding slide grooves 11. It can be understood that the inner peripheral walls of the two slide grooves 11 can respectively limit the outer peripheral walls of the two sliders 211, so that the sliders 211 can stably move along the extension direction of the slide grooves 11, and then the sleeve 20 can stably move relative to the housing 10 in the axial direction.

[0042] Embodiment three:

[0043] In this embodiment, based on the second embodiment, the sleeve 20 includes: a first shell 21 and a second shell 22, the first shell 21 and the second shell 22 extend in the axial direction respectively, and the first shell 21 and the second shell 22 are detachably connected to each other at both ends in the circumferential direction; wherein the first shell 21 is provided with sliders 211 at both ends in the circumferential direction.

[0044] It can be understood that by dividing the casing 20 into the first shell 21 and the second shell 22 that can be handled independently, the manufacturing and subsequent maintenance of the casing 20 become more flexible and efficient. For example, when the first shell 21 or the second shell 22 is damaged, only the corresponding first shell 21 or the second shell 22 needs to be replaced, avoiding the need to replace the entire casing 20, thereby reducing the maintenance cost of the concrete vibrator assembly.

[0045] At the same time, the detachable connection method simplifies the assembly process of the sleeve 20, and also facilitates on-site troubleshooting and maintenance, which can be completed without complex tools or expertise; in particular, the detachable design makes it easier to regularly clean and inspect the concrete vibrator assembly 1, which helps to extend the service life of the concrete vibrator assembly 1 and reduce the maintenance cost of the concrete vibrator assembly 1.

[0046] According to some embodiments of the utility model, the slider 211 is provided with an insertion port that penetrates in the thickness direction, and the second shell 22 is provided with insertion blocks 221 at both ends in the circumferential direction. The two insertion blocks 221 are respectively accommodated in the corresponding insertion ports to fix the first shell 21 and the second shell 22.

[0047] It is understandable that the matching design of the plug interface and the plug block 221 makes the connection between the first shell 21 and the second shell 22 quick and simple, improves the assembly and disassembly efficiency of the first shell 21 and the second shell 22, reduces the time for construction preparation and maintenance, and improves the construction efficiency. At the same time, through the precise docking of the plug interface and the plug block 221, the first shell 21 and the second shell 22 can maintain good coaxiality and stability, and even under the strong vibration generated when the vibrating rod is working, it can ensure that the components will not loosen, thereby improving the working stability of the concrete vibrating rod assembly 1.

[0048] According to some embodiments of the utility model, the plug-in block 221 includes: a connecting portion and a plug-in portion, the connecting portion extends radially toward the shell body 10, one end of the connecting portion is connected to the second shell body 22, the plug-in portion is arranged at the other end of the connecting portion, and the plug-in portion extends toward the slider 211; wherein the free end of the plug-in portion extends through the plug interface to the other side of the slider 211, the plug-in portion is provided with a first fixing portion 2211, the first shell body 21 is provided with a second fixing portion corresponding to the first fixing portion 2211, and the first fixing portion 2211 and the second fixing portion are fixed by a fastener 30.

[0049] It can be understood that after the first shell 21 and the second shell 22 are matched, at least part of the plug-in part is accommodated in the plug-in interface, and at least another part of the plug-in part passes through the plug-in interface and extends to the side of the slider 211 away from the second shell 22, at least another part of the plug-in part is provided with a first fixing part 2211, and the first shell 21 is provided with a second fixing part, the first fixing part 2211 is opposite to the second fixing part, and the first fixing part 2211 and the second fixing part are fixed by a fastener 30.

[0050] Therefore, through the design of the plug-in portion passing through the plug-in interface, the first shell 21 and the second shell 22 are accurately aligned in the circumferential direction, and the fastener 30 fixes the first fixing portion 2211 with the second fixing portion to improve the connection stability between the first shell 21 and the second shell 22, thereby improving the structural stability of the sleeve 20.

[0051] In some embodiments, the first fixing portion 2211 can be configured as a first threaded hole, the second fixing portion can be configured as a first through hole, the fastener 30 can be configured as a first screw, the first screw passes through the first through hole and is threadedly connected to the first threaded hole to fix the first shell 21 and the second shell 22.

[0052] Embodiment 4:

[0053] In this embodiment, based on the third embodiment, a first limit block 12 is provided at one end of the shell 10 close to the connecting hose, and second limit blocks 222 are respectively provided at both ends of the second shell 22 in the axial direction, and the two second limit blocks 222 are both connected to the connecting part; wherein the axial projections of the first limit block 12 and the two second limit blocks 222 at least partially overlap, and the first limit block 12 is movably arranged between the two second limit blocks 222.

[0054] It can be understood that, in the axial direction, the projections of the first limit block 12 and the two second limit blocks 222 at least partially overlap, whereby the two first limit blocks 12 can respectively limit the first limit block 12, thereby preventing the shell 10 from detaching from the sleeve 20 when the shell 10 moves relative to the sleeve 20, thereby improving the working stability of the concrete vibrator assembly 1.

[0055] It is worth noting that, since the plug-in block 221 includes a connecting portion and a plug-in portion, and the connecting portion extends radially toward the housing 10, a gap exists between the connection between the connecting portion and the second housing 22 and the housing 10. In the present application, the second limit block 222 is disposed adjacent to the connecting portion, and the second limit block 222 is connected to the connecting portion, so that the second limit block 222 can be located in the gap, thereby making the radial area of ​​the sleeve 20 smaller, thereby making the volume of the concrete vibrator assembly 1 smaller, and at the same time, the connection between the second limit block 222 and the connecting portion can improve the structural strength of the connecting portion.

[0056] According to some embodiments of the utility model, the outer peripheral wall of the shell 10 is provided with a plurality of first fixing holes 13, and the plurality of first fixing holes 13 are arranged at intervals from each other in the axial direction. The sleeve 20 is provided with a second fixing hole that penetrates in the radial direction. The fixing piece passes through the second fixing hole and cooperates with one of the first fixing holes 13 to fix the shell 10 and the sleeve 20.

[0057] It can be understood that the outer peripheral wall of the shell 10 is provided with a plurality of first fixing holes 13 distributed at intervals in the axial direction, and the first fixing holes 13 can be constructed as second threaded holes. The outer peripheral wall of the sleeve 20 is provided with a second fixing hole penetrating in the radial direction, and the second fixing hole can be constructed as a second through hole. The fixing piece can be constructed as a second bolt, whereby the second bolt passes through the second through hole and is threadedly matched with one of the second threaded holes, thereby achieving axial fixation of the shell 10 and the sleeve 20, thereby setting the concrete vibrator assembly 1 to an effective working length.

[0058] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the utility model.

Claims

1. A concrete vibrating rod assembly, characterized in that: include: A housing (10), wherein an electrical component is arranged inside the housing (10), and a first sliding fitting portion is arranged on an outer peripheral wall of the housing (10); A connecting hose, the connecting hose being connected to the housing (10), an electrical connector being arranged in the connecting hose, the electrical connector being electrically connected to the electrical component; A sleeve (20), wherein the inner peripheral wall of the sleeve (20) is provided with a second sliding fitting portion, wherein the first sliding fitting portion and the second sliding fitting portion are slidingly fitted to enable the shell (10) to be movably connected to the second shell (10), and the shell (10) moves relative to the second shell (10) to allow itself to be accommodated in the second shell (10) or to move outside the second shell (10).

2. The concrete vibrating rod assembly according to claim 1, characterized in that: The outer peripheral wall of the shell (10) is provided with a slide groove (11) extending in the axial direction, and the slide groove (11) is configured as the first sliding fitting portion. The inner peripheral wall of the sleeve (20) is provided with a slider (211) extending in the axial direction, and the slider (211) is configured as the second sliding fitting portion. At least a part of the slider (211) is movably accommodated in the slide groove (11).

3. The concrete vibrating rod assembly according to claim 2, characterized in that: The outer peripheral wall of the shell (10) is provided with two slide grooves (11), and the two slide grooves (11) are arranged away from each other. The inner peripheral wall of the sleeve (20) is provided with two sliders (211), and at least parts of the two sliders (211) are respectively movably accommodated in the corresponding slide grooves (11).

4. The concrete vibrating rod assembly according to claim 3, characterized in that: The sleeve (20) comprises: A first housing (21) and a second housing (22), wherein the first housing (21) and the second housing (22) extend in the axial direction respectively, and the first housing (21) and the second housing (22) are detachably connected to each other at both ends in the circumferential direction; The first housing (21) is provided with the sliding blocks (211) at both ends in the circumferential direction.

5. The concrete vibrating rod assembly according to claim 4, characterized in that: The slider (211) is provided with an insertion port that penetrates in the thickness direction, and the second shell (22) is provided with insertion blocks (221) at both ends in the circumferential direction, respectively, and the two insertion blocks (221) are respectively received in the corresponding insertion ports to fix the first shell (21) and the second shell (22).

6. The concrete vibrating rod assembly according to claim 5, characterized in that: The plug-in block (221) comprises: a connecting portion, the connecting portion extending radially toward the housing (10), one end of the connecting portion being connected to the second housing (22); A plug-in portion, the plug-in portion is arranged at the other end of the connecting portion, and the plug-in portion extends toward the sliding block (211); wherein The free end of the plug-in portion extends through the plug-in interface to the other side of the slider (211), the plug-in portion is provided with a first fixing portion (2211), the first housing (21) is provided with a second fixing portion corresponding to the first fixing portion (2211), and the first fixing portion (2211) and the second fixing portion are fixed by a fastener (30).

7. The concrete vibrating rod assembly according to claim 6, characterized in that: The shell (10) is provided with a first limit block (12) at one end close to the connecting hose, and the second shell (22) is provided with second limit blocks (222) at both ends in the axial direction, and the two second limit blocks (222) are both connected to the connecting portion; wherein The projections of the first limit block (12) and the two second limit blocks (222) in the axial direction at least partially overlap, and the first limit block (12) is movably arranged between the two second limit blocks (222).

8. The concrete vibrating rod assembly according to claim 1, characterized in that: The outer peripheral wall of the shell (10) is provided with a plurality of first fixing holes (13), and the plurality of first fixing holes (13) are arranged at intervals from each other in the axial direction. The sleeve (20) is provided with a second fixing hole that penetrates in the radial direction. The fixing piece passes through the second fixing hole and cooperates with one of the first fixing holes (13) to fix the shell (10) and the sleeve (20).

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