Portable vibrator suitable for lithium battery power supply

Abstract

The portable vibrator comprises a vibrating bar, a transmission pipe fitting and a motor assembly, the transmission pipe fitting comprises an outer hose and a transmission flexible shaft, the outer hose is provided with a connector set, the connector set comprises a first butt joint sleeve and a connecting sleeve, and an elastic buffering sleeve is arranged between the inner circumference of the connecting sleeve and the outer circumference of the first butt joint sleeve; the motor assembly is provided with a driving output end, the driving output end comprises a second butt joint sleeve and a driving shaft sleeve, the driving shaft sleeve is in transmission sleeve connection with the transmission flexible shaft, the connecting sleeve is in threaded sleeve connection with the periphery of the second butt joint sleeve, and a first elastic buffer pad is arranged between the end face of the second butt joint sleeve and the end face of the first butt joint sleeve. According to the utility model, vibration reduction in the axial direction and the circumferential direction can be realized, vibration transmitted to the motor assembly by the vibration rod is reduced, the phenomenon of poor contact of the lithium battery caused by loosening of electric contact between the lithium battery and the motor is avoided, and meanwhile, the use comfort of a user is also improved.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete vibration equipment, in particular to a portable vibrator suitable for being powered by a lithium battery. 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 vibrators generally include a motor assembly, a vibrating rod, and a transmission pipe connected between the vibrating rod and the motor assembly. For ease of use, many portable vibrators are now powered by lithium batteries, and the lithium batteries are detachable for easy charging. During use, the vibration generated by the vibrator will be transmitted to the lithium battery and the motor, which can easily lead to loose electrical contact between the lithium battery and the motor, resulting in poor contact of the lithium battery, and the user experience is not good, and they are prone to fatigue. In addition, the transmission pipe and the motor assembly are also prone to looseness, thereby reducing the vibration effect. Utility Model Content

[0003] The utility model aims to provide a portable vibrator suitable for powering by a lithium battery, so as 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 suitable for powering by a lithium battery, comprising:

[0006] Vibrator;

[0007] A transmission pipe fitting, comprising an outer hose and a transmission flexible shaft sleeved in the outer hose, one end of the outer hose is connected to the vibrating rod, and the other end of the outer hose is provided with a connector group, the connector group comprises a first butt sleeve fixedly connected to the outer hose, and a connecting sleeve rotatably sleeved on the outer periphery of the first butt sleeve, the inner periphery of the connecting sleeve away from the end of the outer hose is provided with an internal thread, and an elastic buffer sleeve is provided between the inner periphery of the connecting sleeve and the outer periphery of the first butt sleeve;

[0008] The motor assembly has a drive output end, which includes a second docking sleeve and a drive sleeve coaxially sleeved in the second docking sleeve, the drive sleeve is connected to the transmission sleeve of the transmission flexible shaft, the outer periphery of the second docking sleeve is provided with a first external thread, the connecting sleeve is threadedly sleeved on the outer periphery of the second docking sleeve, and a first elastic buffer pad is provided between the end faces of the second docking sleeve and the first docking sleeve.

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

[0010] When in use, the driving shaft sleeve is used to drive the transmission flexible shaft to rotate, thereby driving the eccentric shaft in the vibration rod to rotate to generate vibration, wherein the utility model connects and fixes the first docking sleeve and the second docking sleeve together through a connecting sleeve to realize a quick-release connection between the motor assembly and the transmission pipe fitting, and in the axial direction, a first elastic buffer pad is arranged between the end face of the second docking sleeve and the end face of the first docking sleeve, and the axial vibration reduction is realized by the first elastic buffer pad, and in the circumferential direction, the circumferential vibration reduction is realized by the elastic buffer sleeve between the inner periphery of the connecting sleeve and the outer periphery of the first docking sleeve, thereby reducing the vibration transmitted from the vibration rod to the motor assembly, avoiding the phenomenon of loose electrical contact between the lithium battery and the motor resulting in poor contact of the lithium battery, and at the same time improving the user's comfort.

[0011] As a further improvement of the above technical solution, a first step facing the connecting sleeve is provided on the outer periphery of the second butt sleeve, and a second elastic buffer pad is provided between the first step and the end surface of the connecting sleeve.

[0012] In the axial direction, the present solution further provides a second elastic buffer pad to achieve buffering and vibration reduction.

[0013] As a further improvement of the above technical solution, the outer periphery of the first butt sleeve is provided with a second step facing away from the second butt sleeve, and the inner periphery of the connecting sleeve is provided with a third step which is in opposition to the second step.

[0014] In this solution, the connecting sleeve is installed in a limited position by the axial limiting conflict between the second step and the third step.

[0015] As a further improvement of the above technical solution, the outer periphery of the first butt sleeve is provided with a second external thread, the outer peripheral thread sleeve of the first butt sleeve is provided with a reinforcing sleeve, and the reinforcing sleeve abuts against one end of the connecting sleeve close to the outer hose.

[0016] This solution also provides a reinforcement sleeve to reinforce the connecting sleeve. After the connecting sleeve and the second docking sleeve are threadedly connected, the reinforcement sleeve is tightened so that the connecting sleeve is clamped between the reinforcement sleeve and the second step to avoid looseness between the transmission pipe and the motor assembly.

[0017] As a further improvement of the above technical solution, the thread tightening directions of the reinforcement sleeve and the connecting sleeve are opposite.

[0018] This achieves a mutual locking effect and prevents the connecting sleeve from loosening due to vibration during use.

[0019] As a further improvement of the above technical solution, a flat transmission head is provided at the end of the transmission flexible shaft, and an insertion groove matching and plugging with the transmission head is provided on the inner periphery of the driving sleeve.

[0020] As a further improvement of the above technical solution, the motor assembly includes a casing and a motor element disposed in the casing, the drive sleeve is connected to the motor element, and the second docking sleeve is fixedly connected to the casing.

[0021] As a further improvement of the above technical solution, the outer periphery of the connecting sleeve is provided with anti-skid grooves, which is convenient to operate, and the connecting sleeve is twisted by the anti-skid grooves.

[0022] As a further improvement of the above technical solution, a sleeve groove is provided at one end of the first butt sleeve away from the second butt sleeve, and the outer hose is fixedly sleeved in the sleeve groove.

[0023] The outer hose of the present invention is sleeved in the sleeve groove to achieve fixed connection between the first butt sleeve and the outer hose.

[0024] As a further improvement of the above technical solution, the sleeve groove is provided with a buffer ring sleeve located at the end side of the outer hose. The buffer ring sleeve is used to buffer and reduce vibration of the transmission flexible shaft to prevent the transmission flexible shaft from touching the first docking sleeve during rotation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0026] Figure 1 This is a structural schematic diagram of an embodiment of a portable vibrator suitable for lithium battery power supply provided by the utility model;

[0027] Figure 2 yes Figure 1 A partial enlarged view of part A. DETAILED DESCRIPTION

[0028] 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.

[0029] 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.

[0030] 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.

[0031] 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.

[0032] Reference Figure 1-2 The portable vibrator of the utility model suitable for lithium battery power supply is made into the following embodiments:

[0033] The portable vibrator of this embodiment includes a vibrating rod 100 , a transmission pipe 200 and a motor assembly 400 .

[0034] The vibrating rod 100 is a conventional vibrating rod structure, and the vibrating rod 100 includes an outer sleeve and an eccentric shaft rotatably installed in the outer sleeve, and vibration is generated by the rotating eccentric shaft.

[0035] The motor assembly 400 includes a housing 430 and a motor element disposed in the housing 430 . The motor assembly 400 also includes a lithium battery installed in the housing 430 , and the lithium battery supplies power to the motor element.

[0036] The transmission pipe 200 is connected between the vibration rod 100 and the motor assembly 400 to transmit the power of the motor element to the eccentric shaft to drive the eccentric shaft to rotate.

[0037] The transmission pipe 200 of this embodiment includes an outer hose 210 and a transmission flexible shaft 220. The transmission flexible shaft 220 is rotatably installed in the outer hose 210. One end of the outer hose 210 is connected to the outer sleeve of the vibration rod 100, and the other end of the outer hose 210 is provided with a connector group 300.

[0038] The connector group 300 includes a first docking sleeve 310 and a connecting sleeve 320. The first docking sleeve 310 is fixedly connected to the outer hose 210. The connecting sleeve 320 can be rotatably mounted on the outer periphery of the end of the first docking sleeve 310 away from the outer hose 210. The inner periphery of the end of the connecting sleeve 320 away from the outer hose 210 is provided with an internal thread, and an elastic buffer sleeve 330 is provided between the inner periphery of the connecting sleeve 320 and the outer periphery of the first docking sleeve 310.

[0039] The motor assembly 400 has a driving output end, which includes a second docking sleeve 410 and a driving sleeve 420, wherein the second docking sleeve 410 is fixedly connected to the housing 430, and the driving sleeve 420 is connected to the motor element. When in use, the driving sleeve 420 is connected to one end of the transmission flexible shaft 220, and the other end of the transmission flexible shaft 220 is connected to the eccentric shaft. A first external thread is provided on the outer periphery of the second docking sleeve 410, and the connecting sleeve 320 is threadedly sleeved on the outer periphery of the second docking sleeve 410. A first elastic buffer pad 340 is clamped between the end faces of the second docking sleeve 410 and the first docking sleeve 310.

[0040] When in use, the driving sleeve 420 is used to drive the transmission flexible shaft 220 to rotate, thereby driving the eccentric shaft in the vibration rod 100 to rotate to generate vibration.

[0041] In this embodiment, the first docking sleeve 310 and the second docking sleeve 410 are docked and fixed together by the connecting sleeve 320 to realize the quick-release connection between the motor assembly 400 and the transmission pipe 200, and in the axial direction, a first elastic buffer pad 340 is arranged between the end face of the second docking sleeve 410 and the end face of the first docking sleeve 310, and the axial vibration reduction is realized by the first elastic buffer pad 340, and in the circumferential direction, the circumferential vibration reduction is realized by the elastic buffer sleeve 330 between the inner periphery of the connecting sleeve 320 and the outer periphery of the first docking sleeve 310, so as to reduce the vibration transmitted from the vibration rod 100 to the motor assembly 400, avoid the phenomenon that the electrical contact between the lithium battery and the motor is loose and causes poor contact of the lithium battery, and at the same time improve the user's comfort.

[0042] Furthermore, a first step 411 is provided on the outer periphery of the second docking sleeve 410 toward the side of the connecting sleeve 320, and a second elastic buffer pad 350 is provided between the first step 411 and the end surface of the connecting sleeve 320. In the axial direction, the second elastic buffer pad 350 is also provided in this embodiment to achieve buffering and vibration reduction.

[0043] In addition, a second step 311 facing away from the second docking sleeve 410 is provided on the outer periphery of the first docking sleeve 310, and a third step 321 relatively in conflict with the second step 311 is provided on the inner periphery of the connecting sleeve 320. In this embodiment, the connecting sleeve 320 is limitedly installed by the axial limiting conflict between the second step 311 and the third step 321.

[0044] Furthermore, a second external thread is provided on the outer periphery of the first docking sleeve 310, and a reinforcement sleeve 360 ​​is provided on the outer peripheral thread sleeve of the first docking sleeve 310. The reinforcement sleeve 360 ​​abuts against one end of the connecting sleeve 320 close to the outer hose 210. The present embodiment further provides a reinforcement sleeve 360 ​​to reinforce the connecting sleeve 320. After the connecting sleeve 320 is threadedly connected with the second docking sleeve 410, the reinforcement sleeve 360 ​​is tightened so that the connecting sleeve 320 is clamped between the reinforcement sleeve 360 ​​and the second step 311 to avoid looseness between the transmission pipe 200 and the motor assembly 400.

[0045] Furthermore, the thread tightening directions of the reinforcing sleeve 360 ​​and the connecting sleeve 320 are opposite to each other, so as to achieve a mutual locking effect and prevent the connecting sleeve 320 from loosening due to vibration during use.

[0046] In this embodiment, a flat transmission head 221 is disposed at the end of the transmission flexible shaft 220 , and a plug-in groove 421 matching and plugging with the transmission head 221 is disposed on the inner circumference of the driving sleeve 420 , so that the assembly efficiency can be improved.

[0047] The outer periphery of the connecting sleeve 320 is provided with anti-skid grooves, and the connecting sleeve 320 can be twisted by the anti-skid grooves, which is convenient for operation.

[0048] In this embodiment, a sleeve groove 312 is provided at one end of the first docking sleeve 310 away from the second docking sleeve 410, and the outer hose 210 is fixedly sleeved in the sleeve groove 312. The outer hose 210 of this embodiment is sleeved in the sleeve groove 312 to achieve a fixed connection between the first docking sleeve 310 and the outer hose 210. In practice, glue can be filled in the sleeve groove 312.

[0049] The sleeve groove 312 of this embodiment is sleeved with a buffer ring sleeve 370 arranged on the end side of the outer hose 210. The buffer ring sleeve 370 is used to buffer and reduce vibration of the transmission flexible shaft 220 to prevent the transmission flexible shaft 220 from touching the first docking sleeve 310 during rotation.

[0050] When the portable vibrator of this embodiment is assembled for use, one end of the outer hose 210 and the transmission flexible shaft 220 are respectively connected to the outer sleeve and the eccentric shaft of the vibration rod 100, and the other end of the outer hose 210 is threadedly connected to the second docking sleeve 410 through the connecting sleeve 320, so that the second docking sleeve 410 is docked with the first docking sleeve 310, so that the transmission head 221 of the transmission flexible shaft 220 is inserted into the insertion groove 421 of the driving shaft sleeve 420, and the first elastic buffer pad 340 is clamped between the end faces of the second docking sleeve 410 and the first docking sleeve 310, and the second elastic buffer pad 350 is clamped between the first step 411 and the end face of the connecting sleeve 320, and then the reinforcement sleeve 360 ​​is tightened.

[0051] 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 suitable for lithium battery power supply, characterized in that: include: Vibrator (100); A transmission pipe (200), comprising an outer hose (210) and a transmission flexible shaft (220) sleeved in the outer hose (210); one end of the outer hose (210) is connected to the vibrating rod (100); the other end of the outer hose (210) is provided with a connector group (300); the connector group (300) comprises a first butt joint sleeve (310) fixedly connected to the outer hose (210); and a connecting sleeve (320) rotatably sleeved on the outer periphery of the first butt joint sleeve (310); an inner periphery of the connecting sleeve (320) away from the end of the outer hose (210) is provided with an internal thread; and an elastic buffer sleeve (330) is provided between the inner periphery of the connecting sleeve (320) and the outer periphery of the first butt joint sleeve (310); The motor assembly (400) has a drive output end, the drive output end comprises a second butt joint sleeve (410), a drive shaft sleeve (420) coaxially sleeved in the second butt joint sleeve (410), the drive shaft sleeve (420) being transmission sleeved with the transmission flexible shaft (220), the outer periphery of the second butt joint sleeve (410) being provided with a first external thread, the connecting sleeve (320) being threadedly sleeved on the outer periphery of the second butt joint sleeve (410), and a first elastic buffer pad (340) being provided between the end surfaces of the second butt joint sleeve (410) and the first butt joint sleeve (310).

2. The portable vibrator according to claim 1, characterized in that: The outer periphery of the second docking sleeve (410) is provided with a first step (411) facing the connecting sleeve (320), and a second elastic buffer pad (350) is provided between the first step (411) and the end surface of the connecting sleeve (320).

3. The portable vibrator according to claim 1, characterized in that: The outer periphery of the first docking sleeve (310) is provided with a second step (311) facing away from the second docking sleeve (410), and the inner periphery of the connecting sleeve (320) is provided with a third step (321) which is in opposition to the second step (311).

4. The portable vibrator according to claim 3, characterized in that: The outer circumference of the first butt joint sleeve (310) is provided with a second external thread, and the outer circumferential thread sleeve of the first butt joint sleeve (310) is provided with a reinforcing sleeve (360), and the reinforcing sleeve (360) abuts against one end of the connecting sleeve (320) close to the outer hose (210).

5. The portable vibrator according to claim 4, characterized in that: The thread tightening directions of the reinforcing sleeve (360) and the connecting sleeve (320) are opposite.

6. The portable vibrator according to claim 1, characterized in that: A flat transmission head (221) is provided at the end of the transmission flexible shaft (220), and an insertion groove (421) matching and plugging with the transmission head (221) is provided on the inner periphery of the driving shaft sleeve (420).

7. The portable vibrator according to claim 1, characterized in that: The motor assembly (400) comprises a housing (430) and a motor element disposed in the housing (430); the drive shaft sleeve (420) is connected to the motor element; and the second docking sleeve (410) is fixedly connected to the housing (430).

8. The portable vibrator according to claim 1, characterized in that: The outer periphery of the connecting sleeve (320) is provided with anti-slip grooves.

9. The portable vibrator according to claim 1, characterized in that: A sleeve groove (312) is provided at one end of the first butt sleeve (310) away from the second butt sleeve (410), and the outer hose (210) is fixedly sleeved in the sleeve groove (312).

10. The portable vibrator according to claim 9, characterized in that: The sleeve groove (312) is sleeved with a buffer ring sleeve (370) located at the end side of the outer hose (210).

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