Portable vibrating rod

Abstract

The utility model discloses a portable vibrating rod which comprises a main sleeve, an end sleeve and an eccentric shaft, and the end sleeve is connected to one end of the main sleeve in a plugging and sleeving mode. The eccentric shaft is arranged between the main sleeve and the end sleeve in a sleeved mode, bearing assemblies are arranged at the two ends of the eccentric shaft respectively, one bearing assembly is installed in the main sleeve, the other bearing assembly is installed in the end sleeve and is opposite to an existing bearing assembly which is arranged in the main sleeve, and the length of the eccentric shaft is not limited by the main sleeve. The eccentric shaft is sleeved between the main sleeve and the end sleeve, at the moment, the end sleeve can contain and install a part of the eccentric shaft, the total vibration length range of the vibration rod comprises the length of the end sleeve and the length of the main sleeve, and under the same vibration length range, the main sleeve can be shortened, and the end sleeve can be prolonged to be matched with the length of the eccentric shaft, so that the eccentric shaft is not damaged when leaving a factory. The end sleeve and the main sleeve can be kept at a proper length so as to be convenient to produce, manufacture and transport.

Description

Technical Field

[0001] The utility model relates to the field of concrete vibration equipment, in particular to a portable vibration rod. Background Art

[0002] With the rise of the DIY trend, portable vibrators are widely popular in concrete vibration operations due to their simplicity, lightness, durability and other characteristics. Today's portable vibrators are generally equipped with a vibrating rod, which drives the eccentric shaft in the vibrating rod to rotate through a driving component to generate vibration. In order to expand the vibration range, the existing vibrating rods generally have a very long sleeve, which results in a large transportation space required for each part when leaving the factory. If the sleeve length is reduced, the eccentric shaft will be shortened, reducing the vibration range of the vibrating rod. In addition, the contact area between the current vibrating rod and the concrete is relatively limited, resulting in poor vibration effect. Utility Model Content

[0003] The utility model aims to provide a portable vibrator to solve one or more technical problems existing in the prior art and at least provide a beneficial choice or create conditions.

[0004] The technical solutions adopted to solve the above technical problems are:

[0005] The utility model provides a portable vibrator, comprising:

[0006] The main casing is a hollow tube structure;

[0007] An end sleeve, a plugging sleeve connected to one end of the main sleeve;

[0008] The eccentric shaft is sleeved between the main sleeve and the end sleeve. The two ends of the eccentric shaft are respectively provided with bearing assemblies, one of the bearing assemblies is installed in the main sleeve, and the other bearing assembly is installed in the end sleeve.

[0009] The beneficial effects of the utility model are:

[0010] The utility model arranges the bearing assembly at one end of the eccentric shaft in the end sleeve, and arranges the bearing assembly at the other end in the main sleeve. In contrast to the existing bearing assemblies that are all arranged in the main sleeve, the length of the eccentric shaft is not limited by the main sleeve. The eccentric shaft is sleeved between the main sleeve and the end sleeve. At this time, the end sleeve can accommodate a part of the eccentric shaft for installation. The total vibration length range of the vibrating rod includes the length of the end sleeve and the main sleeve. Under the same vibration length range, the main sleeve can be shortened and the end sleeve can be extended to match the length of the eccentric shaft. In this way, the end sleeve and the main sleeve can be kept at an appropriate length when leaving the factory to facilitate production, manufacturing and transportation.

[0011] As a further improvement of the above technical solution, the end sleeve includes an auxiliary sleeve and an end cover integrally sealed at one end of the auxiliary sleeve, and one end of the auxiliary sleeve away from the end cover is sleeved with the main sleeve.

[0012] The end sleeve of the present invention comprises an integrally formed end cap and an auxiliary sleeve, wherein one end of the auxiliary sleeve away from the end cap is sleeved with the main sleeve, and the auxiliary sleeve and the main sleeve form a main pipe cavity for accommodating the installation and rotation of the eccentric shaft.

[0013] As a further improvement of the above technical solution, the cross-section of the outer periphery of the auxiliary sleeve is a polygonal structure.

[0014] The auxiliary sleeve of the present invention forms a plurality of planes on its outer circumference, and the vibrating rod can contact the concrete through the plurality of planes, thereby increasing the contact area with the concrete and further improving the vibration effect.

[0015] As a further improvement of the above technical solution, the polygonal structure is arranged with equilateral sides.

[0016] The equilateral polygonal structure can form multiple planes of equal area on the outer periphery of the auxiliary casing, so that the vibrating rod has the same vibration effect on the concrete around it, making it less likely for the vibrating rod to deviate and reducing the chance of contact with the steel bars.

[0017] As a further improvement of the above technical solution, the inner circumference of the auxiliary sleeve is provided with a first positioning step abutting against the end surface of the bearing assembly, and the inner circumference of the main sleeve is provided with a second positioning step abutting against the end surface of the bearing assembly.

[0018] During assembly, the two bearing assemblies are positioned and installed in the auxiliary sleeve and the main sleeve respectively through the first positioning step and the second positioning step, thereby improving the accuracy and efficiency of installation.

[0019] As a further improvement of the above technical solution, the end cover is a pointed cone head structure, which makes it easier for the vibrating rod to be inserted into concrete and is convenient for operation.

[0020] As a further improvement of the above technical solution, an end of the main sleeve away from the end sleeve is connected to a transition pipe, and an adapter connected to the eccentric shaft is provided in the transition pipe.

[0021] When in use, the vibrating rod is connected to the transmission hose through the transition pipe, and the adapter connects the transmission flexible shaft in the transmission hose with the eccentric shaft to achieve transmission connection.

[0022] As a further improvement of the above technical solution, a rubber oil seal is sleeved between the adapter and the transition pipe.

[0023] The rubber oil seal is used to seal the vibrating rod with the outside.

[0024] As a further improvement of the above technical solution, the eccentric shaft includes two connecting shaft segments and an eccentric segment located between the two connecting shaft segments. The eccentric segment includes a weighted portion with a semicircular cross-section and a reinforcement portion vertically connected to the middle portion of the flat side of the weighted portion. The reinforcement portion is a slat-like structure extending along the axial direction of the eccentric shaft.

[0025] The eccentric shaft in this scheme is a weighted shaft structure, in which the weighted part and the reinforcement part are arranged circumferentially to form an eccentric effect during rotation, and the reinforcement part is vertically connected to the middle part of the flat side of the weighted part, which can improve the structural strength of the eccentric shaft.

[0026] As a further improvement of the above technical solution, the bearing assembly includes a plurality of deep groove ball bearings arranged side by side.

[0027] The eccentric shaft is installed in rotation by using a plurality of deep groove ball bearings, which can improve the rotation stability of the eccentric shaft and make the force more uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0029] Figure 1 This is an exploded view of an embodiment of the portable vibrator provided by the utility model;

[0030] Figure 2 This is a cross-sectional view of an embodiment of the portable vibrator provided by the utility model in a use state;

[0031] Figure 3 yes Figure 2 Cross-sectional view of section AA. DETAILED DESCRIPTION

[0032] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0033] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations 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 orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0034] In the description of the present utility model, if there are words such as "several", it means one or more, "more" means more than two, greater than, less than, exceed, etc. are understood to exclude the number, and above, below, within, etc. are understood to include the number.

[0035] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0036] Reference Figure 1 to Figure 3 The portable vibrator of the utility model is made into the following embodiments:

[0037] The portable vibrating rod of the utility model comprises a main sleeve 100 , an end sleeve 200 and an eccentric shaft 300 .

[0038] The main casing 100 adopts a hollow steel pipe structure, and the main casing 100 is a round tube. In other embodiments, the main casing 100 may adopt a square tube or a structure with other cross-sectional shapes. The two ends of the main casing 100 are a vibration end and a connection end respectively.

[0039] One end of the end sleeve 200 is a blocking end, and the other end is an open end. The open end of the end sleeve 200 is connected to the vibration end of the main sleeve 100 .

[0040] The eccentric shaft 300 of this embodiment is sleeved between the main sleeve 100 and the end sleeve 200, wherein a bearing assembly 400 is arranged in the end of the main sleeve 100 away from the end sleeve 200, and a bearing assembly 400 is also arranged in the end sleeve 200, and the two ends of the eccentric shaft 300 are rotatably mounted on the two bearing assemblies 400 respectively.

[0041] In the present invention, the bearing assembly 400 at one end of the eccentric shaft 300 is arranged in the end sleeve 200, and the bearing assembly 400 at the other end is arranged in the main sleeve 100. In contrast to the existing bearing assembly 400 that is arranged in the main sleeve 100, the length of the eccentric shaft 300 is not limited by the main sleeve 100. The eccentric shaft 300 is sleeved between the main sleeve 100 and the end sleeve 200. At this time, the end sleeve 200 can accommodate a part of the eccentric shaft 300 for installation. The total vibration length range of the vibrating rod includes the length of the end sleeve 200 and the main sleeve 100. Under the same vibration length range, the main sleeve 100 can be shortened and the end sleeve 200 can be extended to match the length of the eccentric shaft 300. In this way, when leaving the factory, the end sleeve 200 and the main sleeve 100 can be kept at an appropriate length to facilitate production, manufacturing and transportation.

[0042] As for the specific structure of the end sleeve 200, the end sleeve 200 is also a steel component. The end sleeve 200 of this embodiment includes an auxiliary sleeve 210 and an end cover 220 which are integrally formed. The end cover 220 is sealed at one end of the auxiliary sleeve 210, and the end of the auxiliary sleeve 210 away from the end cover 220 is sleeved with the main sleeve 100. The auxiliary sleeve 210 and the main sleeve 100 of this embodiment are sleeved with an interference fit, so that the auxiliary sleeve 210 and the main sleeve 100 form a main pipe cavity for accommodating the installation and rotation of the eccentric shaft 300.

[0043] In some other embodiments, the auxiliary casing 210 and the main casing 100 may be connected by thread.

[0044] Furthermore, the cross-section of the outer periphery of the auxiliary sleeve 210 of this embodiment is set to a polygonal structure, so that the outer periphery of the auxiliary sleeve 210 forms multiple planes, and the vibrating rod can contact the concrete through multiple planes, thereby increasing the contact area with the concrete and further improving the vibration effect.

[0045] Moreover, the polygonal structure is equilaterally arranged, and the equilateral polygonal structure can form a plurality of planes of equal area on the periphery of the auxiliary sleeve 210, so that the vibrating rod has the same vibrating effect on the concrete around it, making it less likely for the vibrating rod to deviate and reducing the chance of contact with the steel bars.

[0046] In this embodiment, a first positioning step 211 is provided on the inner circumference of the auxiliary sleeve 210, and the first positioning step 211 faces one end of the main sleeve 100, and the eccentric shaft 300 includes two connecting shaft sections 310 and an eccentric section 320 provided between the two connecting shaft sections 310, wherein the connecting shaft section 310 and the bearing assembly 400 are sleeved together, and an abutment step is also formed between the connecting shaft section 310 and the eccentric section 320.

[0047] During assembly, after the bearing assembly 400 is inserted into the auxiliary sleeve 210 , one end surface thereof abuts against the first positioning step 211 , and the other end surface abuts against the abutting step, thereby achieving positioning and installation of the bearing assembly 400 .

[0048] A second positioning step 110 is disposed on the inner circumference of the main sleeve 100 , and the second positioning step 110 abuts against an end surface of another bearing assembly 400 .

[0049] The two bearing assemblies 400 are positioned and installed in the auxiliary sleeve 210 and the main sleeve 100 respectively through the first positioning step 211 and the second positioning step 110, thereby improving the accuracy and efficiency of installation.

[0050] The end cover 220 of the present embodiment adopts a pointed cone head structure. The pointed cone head end cover 220 facilitates the insertion of the vibrating rod into the concrete, which is convenient for operation.

[0051] Furthermore, a transition pipe 500 is sleeved on one end of the main sleeve 100 away from the end sleeve 200, and an adapter 600 connected to the eccentric shaft 300 is provided in the transition pipe 500. When in use, the vibrating rod is connected to the transmission hose through the transition pipe 500, and the adapter 600 connects the transmission flexible shaft in the transmission hose with the eccentric shaft 300 to realize the transmission connection.

[0052] The transition pipe 500 and the main casing 100 of this embodiment are connected by interference fit. In other embodiments, a threaded connection may be used.

[0053] In addition, a rubber oil seal 700 is provided between the adapter 600 and the transition pipe 500 , and the rubber oil seal 700 is used to achieve sealing between the vibration rod and the outside.

[0054] The eccentric segment 320 of this embodiment includes a weighted portion 321 with a semicircular cross-section and a reinforcement portion 322 vertically connected to the middle of the flat side of the weighted portion 321 . The reinforcement portion 322 is a strip-like structure extending along the axial direction of the eccentric shaft 300 .

[0055] The eccentric shaft 300 of this embodiment is a weighted shaft structure, in which the weighted portion 321 and the reinforcement portion 322 are arranged circumferentially to form an eccentric effect during rotation, and the reinforcement portion 322 is vertically connected to the middle portion of the flat side of the weighted portion 321, thereby improving the structural strength of the eccentric shaft 300.

[0056] In addition, the bearing assembly 400 includes a plurality of deep groove ball bearings arranged side by side. The bearing assembly 400 of this embodiment includes two deep groove ball bearings, and the eccentric shaft 300 is rotatably mounted by the two deep groove ball bearings, which can improve the rotation stability of the eccentric shaft 300 and make the force more uniform.

[0057] In addition, a wave elastic washer is arranged between the two deep groove ball bearings.

[0058] The preferred implementation modes of the present invention are specifically described above, but the present invention is not limited to the described embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention, and these equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A portable vibrator, characterized in that: include: The main casing (100) is a hollow tube structure; An end sleeve (200) is plugged and sleeved on one end of the main sleeve (100); An eccentric shaft (300) is sleeved between the main sleeve (100) and the end sleeve (200), and bearing assemblies (400) are respectively provided at both ends of the eccentric shaft (300), wherein one of the bearing assemblies (400) is installed in the main sleeve (100), and the other bearing assembly (400) is installed in the end sleeve (200).

2. The portable vibrator according to claim 1, characterized in that: The end sleeve (200) comprises an auxiliary sleeve (210) and an end cover (220) integrally sealed at one end of the auxiliary sleeve (210); an end of the auxiliary sleeve (210) away from the end cover (220) is sleeved with the main sleeve (100).

3. The portable vibrator according to claim 2, characterized in that: The cross section of the outer periphery of the auxiliary sleeve (210) is a polygonal structure.

4. The portable vibrator according to claim 3, characterized in that: The polygonal structure is arranged with equal sides.

5. The portable vibrator according to claim 2, characterized in that: The inner circumference of the auxiliary sleeve (210) is provided with a first positioning step (211) abutting against the end surface of the bearing assembly (400), and the inner circumference of the main sleeve (100) is provided with a second positioning step (110) abutting against the end surface of the bearing assembly (400).

6. The portable vibrator according to claim 2, characterized in that: The end cover (220) is a pointed cone head structure.

7. The portable vibrator according to claim 1, characterized in that: One end of the main sleeve (100) away from the end sleeve (200) is connected to a transition pipe (500), and an adapter (600) connected to the eccentric shaft (300) is provided in the transition pipe (500).

8. The portable vibrator according to claim 7, characterized in that: A rubber oil seal (700) is sleeved between the adapter (600) and the transition pipe (500).

9. The portable vibrator according to claim 1, characterized in that: The eccentric shaft (300) comprises two connecting shaft sections (310), an eccentric section (320) located between the two connecting shaft sections (310), the eccentric section (320) comprising a weighted portion (321) having a semicircular cross-section, and a reinforcement portion (322) vertically connected to the middle of the flat side of the weighted portion (321), the reinforcement portion (322) being a slat-like structure extending along the axial direction of the eccentric shaft (300).

10. The portable vibrator according to claim 1, characterized in that: The bearing assembly (400) includes a plurality of deep groove ball bearings arranged side by side.

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