A universal stirring head structure with stepless adjustment and locking

Abstract

The utility model discloses a universal stirring head structure with stepless adjustment and locking, comprising an adjustment tube, a stirring rod and a locking sleeve, wherein the adjustment tube is hollowly arranged along the axial direction, the stirring rod is axially inserted into the adjustment tube, one end of the adjustment tube is provided with a sleeve extending along the axial direction, the locking sleeve is sleeved outside the sleeve, the locking sleeve is threadedly connected to the sleeve, the sleeve is elastic, and the locking sleeve is interference fit with the sleeve. The utility model adopts the form of a telescopic tube and a stirring rod to realize telescopic adjustment, so that the whole formed by the telescopic tube and the stirring rod can be connected to an electric tool, and the length adjustment function can be realized after being adapted and connected with different products, and the applicability is strong; the telescopic locking function is realized by the interference fit after the locking sleeve and the sleeve are threadedly connected, and the simplified structure greatly increases the speed and convenience of operation while ensuring the strength of the locking by clamping.

Description

Technical Field

[0001] The utility model belongs to the field of electric tools and relates to a universal stirring head structure with stepless adjustment and locking. Background Art

[0002] A mixer tool is a tool that is powered by a motor, transmits rotational motion through a two-stage or three-stage gear pair, and uses and configures a mixing head to transmit rotational torque to achieve the purpose of mixing operations.

[0003] The existing agitator products on the market currently have poor compatibility of the configured agitator rod accessories, and the machine connectors are not standardized. They are often only suitable for specific machines and are generally of fixed length. It is difficult to quickly and conveniently adjust the telescopic locking according to actual needs. During long-term operation by users, due to differences in individual users and heights, inappropriate agitator rod length often causes bending or lifting movements during operation, and the inconvenient length adjustment operation makes users unwilling to make timely adjustments during operation, which ultimately leads to excessive work intensity and an increase in the risk of potential occupational diseases such as lumbar muscle strain, spinal curvature, and periarthritis of the shoulder during long-term operation. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a universal stirring head structure with stepless adjustment and locking.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A universal stirring head structure with stepless adjustment and locking comprises an adjusting tube, a stirring rod and a locking sleeve, wherein the adjusting tube is hollow in the axial direction, the stirring rod is axially inserted into the adjusting tube, one end of the adjusting tube is provided with a sleeve extending in the axial direction, the locking sleeve is sleeved outside the sleeve, the locking sleeve is threadedly connected to the sleeve, the sleeve is elastic, and the locking sleeve is interference fit with the sleeve.

[0007] Furthermore, the sleeve is in a gradually contracting conical structure in the axial direction toward the stirring rod.

[0008] Furthermore, the sleeve is provided with grooves, the grooves are extended along the axial direction of the sleeve, the number of the grooves is set to be multiple, and they are distributed in a circumferential annular array along the sleeve.

[0009] Furthermore, the locking sleeve is a butterfly nut.

[0010] Furthermore, the projected cross section of the stirring rod along the axial direction is a polygonal structure.

[0011] Furthermore, one axial end of the adjusting tube is provided with a connector for connecting to an electric driving tool.

[0012] Furthermore, one end of the connector is threadedly connected to the adjusting pipe, and the other end is provided with an external thread or an internal thread.

[0013] In summary, the utility model is beneficial in that:

[0014] The utility model adopts the form of a telescopic tube and a stirring rod to achieve telescopic adjustment, so that the whole formed by the telescopic tube and the stirring rod can be connected to the electric tool. After being adapted and connected with different products, the length adjustment function can be realized, and the applicability is strong; the telescopic locking function is achieved by the interference fit after the locking sleeve and the sheath are threadedly connected. Through clamping, the simplified structure greatly increases the speed and convenience of operation while ensuring the locking strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the stirring head structure of the utility model.

[0016] Figure 2 for Figure 1 Schematic diagram of the explosion structure.

[0017] Figure 3 for Figure 1 Schematic diagram of the cross-sectional structure when the middle locking sleeve and the sheath are tightened.

[0018] Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure when the middle locking sleeve is loosened from the sheath.

[0019] Markings in the figure: 1. Adjusting tube; 2. Stirring rod; 3. Locking sleeve; 31. Sheath; 4. Connector. DETAILED DESCRIPTION

[0020] The following describes the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0021] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention, and thus the drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0022] All directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, horizontal, vertical...) are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0023] Due to installation errors and other reasons, the parallel relationship referred to in the embodiments of the present invention may actually be an approximately parallel relationship, and the vertical relationship may actually be an approximately vertical relationship.

[0024] The utility model provides a universal stirring head structure with stepless adjustment and locking, which is used for the rapid telescopic adjustment of a stirring rod 2 and a stirring head in an electric stirring tool.

[0025] Reference Figure 1 The stirring head structure includes a connecting head 4, an adjusting tube 1, a locking sleeve 3 and a stirring rod 2. The connecting head 4 is installed at one end of the stirring head structure in the axial direction, specifically one end on the adjusting tube 1, so that the stirring head structure is fixedly connected to the electric driving tool through the connecting head 4, so that the rotating motor of the electric driving tool can drive the rotation of the entire stirring head structure. The stirring rod 2 is installed at the other end of the stirring head structure in the axial direction, and the end of the stirring rod 2 is formed as a stirring head for stirring.

[0026] By setting the connecting head 4 of different specifications, the stirring head structure can be connected to electric drive tools of different models to provide different stirring parameter requirements. The connecting head 4 includes a central part and connecting parts respectively arranged on both sides of the central part, wherein the connecting part on one side is a short screw structure with a thread on the outer periphery, which is used for threaded connection with one end of the adjusting tube 1, and the connecting part on the other side can be a short screw structure with an outer peripheral thread, or a threaded barrel structure with an inner peripheral thread, which is used for connecting to electric drive tools of different models. The electric drive tool is a common tool in the prior art for providing rotational drive, and is widely used in a variety of electric tools.

[0027] The central portion of the connector 4 is in a polygonal structure, so as to facilitate the user's installation by hand or tool twisting.

[0028] Reference Figure 2 The adjusting tube 1 is an axially hollow straight rod structure. One axial end of the adjusting tube 1 is connected to the connecting head 4, and the other end is axially penetrated by the stirring rod 2. The stirring rod 2 can move relatively along the axial direction of the adjusting tube 1 to realize the length telescopic adjustment function of the entire stirring head structure.

[0029] Furthermore, a sleeve 31 is provided at one end of the regulating tube 1 axially facing the stirring rod 2, and the sleeve 31 is extended axially to a set length. The sleeve 31 is provided with a plurality of grooves in the circumferential direction, which connect the inner side and the outer side of the sleeve 31 in the radial direction of the sleeve 31, and the grooves are extended axially along the sleeve 31 to form a long strip structure. In this embodiment, the number of the grooves is preferably four, and the grooves are distributed in a circumferential annular array along the sleeve 31. The grooves divide the sleeve 31 into four parts in the circumferential direction, and the outer peripheral wall of the sleeve 31 is a gradually conical structure in the axial direction toward the stirring rod 2, that is, the outer periphery of the sleeve 31 is inclined relative to the axis of the regulating tube 1.

[0030] Further, the outer peripheral wall of the sleeve 31 is provided with a thread for threaded connection with the locking sleeve 3, the locking sleeve 3 is sleeved on the outer periphery of the sleeve 31, the inner peripheral wall of the locking sleeve 3 is provided with a thread, and the inner peripheral wall of the locking sleeve 3 is in a conical shape with the same slope as the outer peripheral wall of the sleeve 31, refer to Figure 4 In the process of threading the locking sleeve 3 toward the sleeve 31, the expanded open end of the locking sleeve 3 contacts and connects with the closed end of the sleeve 31 before the locking sleeve 3 is gradually tightened. Figure 3 The parts of the sheath 31 are squeezed by the locking sleeve 3 and deformed and bent inward, so as to contact and gradually fit tightly with the outer periphery of the stirring rod 2, and increase the friction between the sheath 31 and the stirring rod 2, thereby limiting or completely limiting the axial relative movement of the stirring rod 2.

[0031] When the user uses an electric stirring tool, the relative friction between the stirring rod 2 and the sheath 31 is reduced by loosening the locking sleeve 3, so that the user can arbitrarily adjust the length between the stirring rod 2 and the adjusting tube 1, and when adjusted to any length position, the sheath 31 and the stirring rod 2 are fastened by tightening the locking sleeve 3, thereby achieving stepless adjustment.

[0032] Furthermore, the locking sleeve 3 is preferably in the form of a butterfly nut to facilitate tightening and loosening operations by users.

[0033] The stirring rod 2 is usually in a cylindrical structure, and the adjusting tube 1 is cylindrically hollow. In the actual application scenario of the electric stirring tool, the stirring rod 2 is subjected to a large torque during high-speed rotation, and the relative friction of the contact of the cylindrical surface is limited, which may cause relative deflection or even loosening between the stirring rod 2 and the sleeve 31, affecting the connection strength and structural strength between the stirring rod 2 and the adjusting tube 1. In this embodiment, as a preferred embodiment, the stirring rod 2 is in a polygonal or special-shaped structure in the axial projection cross-section, preferably a hexagonal structure, or a cut is opened along the chord on the cross-sectional circle. The inner walls of the adjusting tube 1 and the sleeve 31 are also in a corresponding hexagonal structure or a circular penguin mouth structure in the axial direction. When the stirring rod 2 is inserted into the adjusting tube 1, the outer wall of the stirring rod 2 and the inner wall of the adjusting tube 1 have a gap of the same shape, and the hexagonal or cut structure further limits the relative rotation between the two in the circumferential direction, so that the connection strength and structural strength between the stirring rod 2 and the adjusting tube 1 are better.

[0034] Obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

Claims

1. A universal stirring head structure with stepless adjustment and locking, characterized in that: The invention comprises an adjusting tube (1), a stirring rod (2) and a locking sleeve (3); the adjusting tube (1) is hollow in the axial direction; the stirring rod (2) is inserted into the adjusting tube (1) in the axial direction; one end of the adjusting tube (1) is provided with a sleeve (31) extending in the axial direction; the locking sleeve (3) is sleeved outside the sleeve (31); the locking sleeve (3) is threadedly connected to the sleeve (31); the sleeve (31) is elastic; and the locking sleeve (3) and the sleeve (31) are interference fit.

2. A stepless adjustable locking universal stirring head structure according to claim 1, characterized in that: The sleeve (31) is in a gradually conical structure along the axial direction toward the stirring rod (2).

3. A stepless adjustable locking universal stirring head structure according to claim 1 or 2, characterized in that: The sleeve (31) is provided with grooves, the grooves are extended along the axial direction of the sleeve (31), the number of the grooves is multiple and distributed in a circumferential annular array along the sleeve (31).

4. The steplessly adjustable and locked universal stirring head structure according to claim 1, characterized in that: The locking sleeve (3) is a butterfly nut.

5. The steplessly adjustable and locking universal stirring head structure according to claim 1, characterized in that: The projected cross section of the stirring rod (2) along the axial direction is a polygonal structure.

6. The steplessly adjustable and locking universal stirring head structure according to claim 1, characterized in that: One axial end of the regulating tube (1) is provided with a connector (4) for connecting to an electric drive tool.

7. A stepless adjustable locking universal stirring head structure according to claim 6, characterized in that: One end of the connector (4) is threadedly connected to the regulating tube (1), and the other end is provided with an external thread or an internal thread.

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