Rotating shaft device
By designing a rotating shaft device including upper panel, lower panel, fixer and limiter, the problem of unstable shaft of the existing iron frame table rotating shaft during fixed-point installation and adjustment is solved, and the smooth adjustment of the experimental vessel under weight bearing is achieved. .
Patent Information
- Application Number
- CN202421211636.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-30
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-05-30
AI Technical Summary
The cross-buckle and sleeve-type rotor shaft of the existing iron frame table are affected by the uniqueness of the structural angle when installed at a fixed point, and the adjustment is unstable. Especially when there is a load on the crossbar, it is difficult to control when loosened.
A rotating shaft device is designed, including an upper panel, a lower panel, a fixture and a limiter. Through the combination of sleeve, elastic spring and positioning bolts, the coaxial rotation of the upper and lower panels is achieved, ensuring that the experimental instrument remains stable during the adjustment process.
The smooth and easy control of the experimental instrument during the adjustment process is achieved, and unstable adjustment caused by weight bearing is avoided.
Smart Images
Figure CN222446584U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of experimental instruments, and in particular relates to a rotating shaft device. Background Art
[0002] The cross buckle and sleeve-type rotating shaft currently used in the iron frame are affected by the uniqueness of the structural angle during fixed-point installation, and each structural relationship is limited to uniqueness.
[0003] When making adjustments, especially when there is a load (such as a container) on the crossbar, it will be affected by the crossbar and the weight when it is released, making it difficult to control and unstable during adjustment.
[0004] The utility model provides a rotating shaft device in view of the above problems. Utility Model Content
[0005] In order to overcome the problems raised in the background technology, the utility model provides a rotating shaft device.
[0006] A rotating shaft device comprises an upper panel, a lower panel, a fixer and a limiter; the limiter fixes a cross bar to the side wall of the upper panel, one end of the limiter is detachably connected to the upper panel surface, and the other end is detachably connected to the cross bar; the fixer comprises a sleeve, an elastic retaining spring and a positioning bolt; the outside of the sleeve is connected to the upper panel and the lower panel, and the inside is connected to the vertical bar of the iron frame; the positioning bolt is threadedly connected to the lower panel; an avoidance groove is provided in the sleeve, and the positioning bolt enters the inside of the avoidance groove after passing through the lower panel; the sleeve is detachably connected to the elastic retaining spring after passing through the upper panel and the lower panel.
[0007] Furthermore, a first limiting portion is provided at the bottom of the upper panel; a second limiting portion is provided at the top of the lower panel; a third limiting portion is provided between the upper panel and the lower panel; one end of the third limiting portion is connected to the first limiting portion, and the other end is connected to the second limiting portion.
[0008] Further, the first limiting part includes an upper positioning groove; the second limiting part includes a lower positioning groove; the upper positioning groove and the lower positioning groove are buckled to form a positioning cavity; the third limiting part is a ball; the ball is adapted to the positioning cavity.
[0009] Furthermore, the second limiting portion also includes a lower slide; the lower positioning grooves are evenly arrayed inside the lower slide.
[0010] Furthermore, the cross-sectional area of the lower positioning groove is larger than the cross-sectional area of the lower sliding track.
[0011] Furthermore, the number of the balls is less than or equal to the number of the positioning cavities.
[0012] Furthermore, one end of the sleeve is provided with a mounting groove, and the other end is provided with an enlarged end portion; the elastic retaining spring is detachably connected to the mounting groove.
[0013] Furthermore, the limiter includes a limit end, a defining end and a locking portion; one end of the defining end is fixedly connected to the limit end, and the other end passes through the upper panel and is threadedly connected to the locking portion; a through hole is provided inside the limit end.
[0014] Furthermore, a positioning hole is provided on the lower panel; and the positioning bolt is threadedly connected to the positioning hole.
[0015] Furthermore, a mounting portion for mounting an experimental vessel is provided at one end of the crossbar away from the limiter.
[0016] The use of the utility model:
[0017] 1. Install the rotating shaft device on the iron frame;
[0018] 2. Fix the crossbar on the upper panel;
[0019] 3. Fix the experimental vessel on the crossbar;
[0020] 4. When the position of the experimental vessel needs to be adjusted, hold the horizontal bar with your hand, increase the lateral force, drive the upper panel to rotate horizontally with the vertical bar of the iron frame as the axis, so that the ball is offset from its original position. When entering the downward slide, the ball props up the upper and lower panels to separate the upper and lower panels. At the same time, under the action of the sleeve and the elastic retaining spring, the upper and lower panels fit together with the ball, and the upper and lower panels remain coaxial with the sleeve.
[0021] 5. After the experimental vessel reaches the next positioning hole, the ball enters the positioning hole, the ball support function is lost, and the upper panel and the lower panel are re-attached, completing a position adjustment.
[0022] The beneficial effects of the utility model are as follows: the positioning bolt fixes the lower panel to the vertical rod of the iron frame, and a part of the positioning bolt remains inside the sleeve to prevent the lower panel and the sleeve from rotating relative to each other; the elastic retaining spring fixes the upper panel and the lower panel to the sleeve to ensure that the upper panel and the lower panel remain in close contact when rotating and non-rotating; the interior of the upper panel is rotatably connected to the sleeve, and the exterior is connected to the cross bar through a limiter, and the experimental vessel is fixed on the cross bar. When the position of the experimental vessel needs to be adjusted, the cross bar can be held by hand, and the lateral force can be increased to drive the upper panel to rotate horizontally with the vertical rod of the iron frame as the axis, and the upper panel will drive the experimental vessel to move through the cross bar; during the overall adjustment process, the experimental vessel does not leave the iron frame, so that the entire adjustment process is smooth and easy to control; the first limiting part cooperates with the second limiting part and the lower slide to prevent the upper panel from accidentally rotating and the ball from dislocating. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a structural schematic diagram of a rotating shaft device for realizing the utility model;
[0024] Figure 2 It is a front view of a rotating shaft device for implementing the utility model;
[0025] Figure 3 for Figure 2 AA section view;
[0026] Figure 4 An exploded view of a rotating shaft device for implementing the utility model;
[0027] Figure 5 It is a structural schematic diagram of an elastic retaining spring for realizing the utility model;
[0028] Figure 6 It is a structural schematic diagram of a rotating shaft device for realizing the utility model when it is installed and rotated on an iron frame platform;
[0029] Figure 7 It is a structural schematic diagram of another embodiment of the utility model when the rotating shaft device is installed on the iron frame;
[0030] In the figure, 1, upper panel; 2, lower panel; 3, fixer; 4, limiter; 5, cross bar; 6, iron frame; 7, ball bearing; 11, mounting hole; 21, lower slide; 22, positioning hole; 31, sleeve; 32, elastic retaining spring; 33, positioning bolt; 41, limiting end; 42, limiting end; 43, locking part; 211, lower positioning groove; 311, mounting groove; 312, enlarged end; 411, limiting hole. DETAILED DESCRIPTION
[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The utility model can also be implemented or applied through other different specific implementation methods. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.
[0032] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", 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 referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0034] like Figure 1-6 A rotating shaft device comprises an upper panel 1, a lower panel 2, a fixer 3, and a limiter 4; the limiter 4 fixes the cross bar 5 to the side wall of the upper panel 1; one end of the limiter 4 is detachably connected to the upper panel surface, and the other end is detachably connected to the cross bar 5; the fixer 3 comprises a sleeve 31, an elastic retaining spring 32 and a positioning bolt 33; the outer portion of the sleeve 31 is connected to the upper panel 1 and the lower panel 2, and the inner portion is connected to the vertical rod of the iron frame 6; the positioning bolt 33 is threadedly connected to the lower panel 2; an avoidance groove is provided in the sleeve 31, and the positioning bolt 33 enters the interior of the avoidance groove after passing through the lower panel 2; the sleeve 31 passes through the upper panel 1 and the lower panel 2 and is detachably connected to the elastic retaining spring 32.
[0035] The positioning bolt 33 fixes the sleeve 31 on the vertical rod of the iron frame 6, and a part of the positioning bolt 33 remains in the interior of the lower panel 2 to prevent the lower panel 2 and the sleeve 31 from rotating relative to each other; the elastic retaining spring 32 fixes the upper panel 1 and the lower panel 2 on the sleeve 31; the interior of the upper panel 1 is rotatably connected with the sleeve 31, and the exterior is connected with the cross bar 5 through the limiter 4, and the experimental vessel is fixed on the cross bar 5. When the position of the experimental vessel needs to be adjusted, the cross bar 5 is held by hand, and the lateral force is increased to drive the upper panel 1 to rotate horizontally with the vertical rod of the iron frame 6 as the axis, and the upper panel 1 will drive the experimental vessel to move through the cross bar 5; the ball 7 is offset from its original position, and when the ball enters the lower slide 21, the ball 7 opens the upper panel 1 and the lower panel 2, so that the upper panel 1 is separated from the lower panel 2, and at the same time, under the action of the sleeve 31 and the elastic retaining spring 32, the upper panel 1, the lower panel 2 and the ball 7 are fitted, and the upper and lower panels are kept coaxial with the sleeve. After the experimental vessel reaches the specified position, the ball 7 enters the positioning hole 22, loses the ball support function, and the upper panel 1 and the lower panel 2 are fitted together; during the overall adjustment process, the experimental vessel does not leave the iron frame 6, making the entire adjustment process smooth and easy to control.
[0036] Specifically, an end of the cross bar 5 away from the limiter 4 is provided with a mounting portion for mounting the experimental vessel.
[0037] like Figure 1-6 As shown, a first limiting portion is provided at the bottom of the upper panel 1; a second limiting portion is provided at the top of the lower panel 2; a third limiting portion is provided between the upper panel 1 and the lower panel 2; one end of the third limiting portion is connected to the first limiting portion, and the other end is connected to the second limiting portion.
[0038] The first limiting portion, the second limiting portion and the third limiting portion cooperate with each other to prevent the upper panel 1 from rotating accidentally.
[0039] In the exemplary embodiment of the present application, the first limiting portion includes an upper positioning groove; the second limiting portion includes a lower positioning groove 211; and the third limiting portion is a ball 7. The upper positioning groove is arranged in a circumferential array at the bottom of the upper panel 1 with the axis of the sleeve 31 as the center. The lower positioning groove 211 is arranged in a circumferential array at the top of the lower panel 2 with the axis of the sleeve 31 as the center.
[0040] The plurality of upper positioning grooves correspond to the plurality of lower positioning grooves 211 one by one, and are buckled into a plurality of positioning cavities. The number of the balls 7 is less than or equal to the number of the positioning cavities.
[0041] In some embodiments of the present application, the cross-sectional area of the upper positioning groove is larger than that of the lower positioning groove 211. During the rotation of the upper panel 1, the ball 7 cannot escape from the upper positioning groove, thereby preventing the ball 7 from being displaced.
[0042] The ball 7 is adapted to the positioning cavity. When the position of the experimental vessel needs to be adjusted, the cross bar is held by hand to increase the lateral force and rotate the cross bar. At this time, the upper positioning groove is away from the ball 7, and the ball 7 stays inside the lower positioning groove 211 driven by gravity, driving the upper panel 1 to rotate with the vertical rod of the iron frame 6 as the axis, so that the upper positioning groove is close to different balls 7, and then the lower panel 2 is released. The different upper positioning grooves and the lower positioning groove 211 are re-fastened to form a positioning cavity, thereby realizing the adjustment of the position of the experimental vessel, and the ball 7 and the positioning cavity work together to prevent the upper panel 1 from rotating accidentally.
[0043] The minimum spacing between different upper positioning grooves limits the step angle of rotation of the upper panel 1 . The greater the number of upper positioning grooves, the higher the accuracy of adjusting the upper panel 1 .
[0044] In some other embodiments of the present application, the second limiting portion further includes a lower slideway 21; the lower positioning groove 211 is disposed inside the lower slideway 21. The cross-sectional area of the lower positioning groove 211 is greater than the cross-sectional area of the lower slideway 21. The cross-sectional area of the positioning cavity is greater than the cross-sectional area of the lower slideway 21.
[0045] The effects of the annular channel are:
[0046] 1. When the upper panel 1 is driven to rotate by rotating the cross bar, the ball 7 can be disengaged from the upper positioning groove. At this time, the upper panel 1 can be rotated to make the ball 7 enter the lower slide 21, thereby reducing the moving distance of the lower panel 2 in the vertical direction and making the adjustment process smoother.
[0047] 2. During the adjustment of the upper panel 1, if the ball 7 accidentally escapes from the upper positioning groove, it will enter between the upper panel 1 and the lower slide 21. The lower slide 21 has a guiding function and will drive the ball 7 back to the inside of the upper positioning groove.
[0048] When the position of the experimental vessel needs to be adjusted, that is, when the rotating shaft device is rotated, the handrail is installed and fixed on the upper panel 1, and connected to the crossbar 5 of the fixture 3. The lateral force is increased by extending the force arm, so that the ball 7 moves away from its original position when it is offset. When the ball 7 enters the lower slide 21, the support makes the upper and lower panels 2 separate. At the same time, under the action of the sleeve 31 and the elastic retaining spring 32, the upper and lower panels 2 and the ball 7 fit together to prevent the ball 7 from being dislocated, and the upper and lower panels 2 remain coaxial. When rotating to the next positioning hole 22, the ball 7 enters the positioning hole 22, the support of the ball 7 is lost, and the upper and lower panels 2 are closed. A deflection is completed.
[0049] During use, when multiple vessels are mounted on the same iron frame 6 using multiple rotating shaft devices, the multiple vessels are connected to each other. When moving the vessels, multiple rotating shaft devices need to rotate simultaneously, and multiple rotating shaft devices are all displaced by the upper panel 1, so that the upper panel 1, the crossbar 5, and the vessels can be synchronously displaced up and down and rotated around the axis, so as to prevent the vessels from being dislocated due to asynchronous up and down displacement at the connection.
[0050] In some examples of the present application, an axial hole is provided inside the ball 7, and the axis of the axial hole passes through the center of the ball 7. A rotating shaft adapted to the axial hole is provided in the lower positioning groove 211, so that the ball 7 is rotatably connected to the lower positioning groove 211 with the rotating shaft as the center, thereby ensuring that the ball 7 cannot fall out of the lower positioning groove 211.
[0051] In other examples of the present application, the opening area of the lower positioning groove 211 is smaller than the maximum cross-sectional area of the ball 7 , so that the ball 7 can only rotate inside the lower positioning groove 211 , ensuring that the ball 7 cannot escape from the lower positioning groove 211 .
[0052] In some other embodiments of the present application, a first limit portion is provided at the bottom of the upper panel 1, and a second limit portion is provided at the top of the lower panel 2; the first limit portion is engaged with the second limit portion, and the first limit portion and the second limit portion cooperate to prevent the upper panel 1 from rotating accidentally.
[0053] Specifically, the first limiting portion is a first tooth surface; the second limiting portion is a second tooth surface; and the first tooth surface is meshed with the second tooth surface.
[0054] like Figure 1-6 As shown, one end of the sleeve 31 is provided with a mounting groove 311, and the other end is provided with an enlarged end 312; the elastic retaining spring 32 is detachably connected to the mounting groove 311. The purpose of the enlarged end 312 is to prevent the upper panel 1 from falling off the sleeve 31 through the top of the sleeve 31, and to prevent the upper panel 1 from tilting and deviating under the driving of the cross bar 5 with a load, so that the position of the experimental vessel cannot be accurately defined. The functions of the elastic retaining spring 32 are:
[0055] 1. Fix the upper panel 1 and the lower panel 2;
[0056] 2. When the upper panel 1 is rotated, the maximum displacement of the upper panel 1 in the vertical direction is limited.
[0057] After the upper panel 1 rotates to a predetermined position, the upper panel 1 is released, and the elastic retaining spring 32 returns to its original shape to drive the upper panel 1 to descend, so that the upper panel 1 and the lower panel 2 are in contact again.
[0058] When the upper panel 1 is lifted, the elastic retaining spring 32 is compressed, and the upper positioning groove is lifted. When the upper panel 1 is rotated, the upper positioning groove drives the ball 7 to disengage from the lower positioning groove 211 and slide inside the lower slide 21 until the vessel reaches a suitable position. The upper panel 1 is released, and the upper panel 1 is again tightly attached to the lower panel 2 under the action of the elastic retaining spring 32. The different upper positioning grooves and the lower positioning groove 211 are re-fastened to form a positioning cavity, which limits the position of the upper panel 1 and realizes the adjustment of the position of the experimental vessel.
[0059] like Figure 1-6 As shown, the limiter 4 includes a limit end 41, a limiting end 42 and a locking portion 43; one end of the limiting end 42 is fixedly connected to the limit end 41, and the other end passes through the upper panel 1 and is threadedly connected to the locking portion 43; a limit hole 411 is provided inside the limit end 41.
[0060] When in use, insert the cross bar 5 into the limiting hole 411, then pass the limiting end 42 through the upper panel 1 and thread it with the locking part 43, tighten the locking part 43, and the limiting end 41 will move toward the upper panel 1, and the limiting end 41 will squeeze the cross bar 5 on the surface of the upper panel 1, and the friction force is used to limit the position of the cross bar 5.
[0061] Specifically, the outer contour of the limiting end 41 is spherical. The upper panel 1 is provided with a mounting hole 11 adapted to the limiter 4. The mounting hole 11 is divided into two parts, namely a spherical groove and a locking hole. The spherical groove is adapted to the limiting end 41, and the locking hole is adapted to the limiting end 42.
[0062] Since the outer contour of the limit end 41 is spherical and the spherical groove is adapted to the limit end 41, the cross bar 5 can be inserted into the limit end 41 at any angle and restricted by the limiter 4 to the top of the upper panel 1, which increases the convenience of the shaft device.
[0063] like Figure 1-6 As shown, the lower panel 2 is provided with a positioning hole 22; the positioning bolt 33 is threadedly connected with the positioning hole 22. An escape groove is provided in the sleeve 31, and the positioning bolt 33 passes through the lower panel 2 and enters the interior of the escape groove. When in use, the positioning bolt 33 passes through the positioning hole 22 and the escape groove in sequence and is squeezed on the vertical rod of the iron frame 6, and the positional relationship between the lower panel 2 and the vertical rod is locked by friction. The positioning bolt 33 is simultaneously located inside the positioning hole 22 and the escape groove to prevent relative rotation between the lower panel 2 and the sleeve 31.
[0064] like Figure 5 As shown, the elastic spring 32 has corrugations. Specifically, the elastic spring 32 is made of elastic material. When the lower panel 2 is separated from the upper panel 1, the corrugations on the elastic spring 32 are straightened. When the lower panel 2 is released, the elastic spring 32 returns to its original position. Figure 5 In the state shown, the elastic spring 32 resets the lower panel 2, and the lower panel 2 is again attached to the bottom of the upper panel 1. The upper panel 1 is released again, and the upper panel 1 is also supported by the elastic spring 32, so that the upper panel 1 will not be displaced in the vertical direction.
[0065] like Figure 7 As shown in other embodiments of the present application, a plurality of mounting holes 11 are provided on the top of the upper panel 1. A stopper 4 is provided in each mounting hole 11, so that a plurality of experimental instruments can be connected to the upper panel 1 through a cross bar 5 at the same time, so that a plurality of experimental instruments can be rotated at the same time.
[0066] For example, in the oil bath heating operation, multiple flasks are fixed on the same rotating shaft device, and the upper panel 1 is rotated to drive multiple flasks into the oil bath pot for heating in sequence. The same oil bath pot heats multiple flasks, thereby improving the heating efficiency of the oil bath pot.
[0067] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", "some examples", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0068] The embodiments described in this application are only part of the embodiments of the utility model, not all of the embodiments. Those skilled in the art can easily understand other advantages and effects of the utility model from the contents disclosed in this specification. The utility model can also be implemented or applied through other different specific implementation methods. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
Claims
1. A shaft device, comprising an upper panel, a lower panel, a fixer, and a stopper; the stopper fixes the crossbar to the side wall of the upper panel, characterized in that: One end of the limiter is detachably connected to the upper panel, and the other end is detachably connected to the cross bar; the fixer includes a sleeve, an elastic retaining spring and a positioning bolt; the outside of the sleeve is connected to the upper panel and the lower panel, and the inside is connected to the vertical bar of the iron frame; the positioning bolt is threadedly connected to the lower panel; an avoidance groove is provided in the sleeve, and the positioning bolt enters the inside of the avoidance groove after passing through the lower panel; the sleeve is detachably connected to the elastic retaining spring after passing through the upper panel and the lower panel.
2. A rotating shaft device according to claim 1, characterized in that: A first limiting portion is provided at the bottom of the upper panel; a second limiting portion is provided at the top of the lower panel; a third limiting portion is provided between the upper panel and the lower panel; one end of the third limiting portion is connected to the first limiting portion, and the other end is connected to the second limiting portion.
3. A rotating shaft device according to claim 2, characterized in that: The first limiting part includes an upper positioning groove; the second limiting part includes a lower positioning groove; the upper positioning groove and the lower positioning groove are buckled to form a positioning cavity; the third limiting part is a ball; the ball is adapted to the positioning cavity.
4. A rotating shaft device according to claim 3, characterized in that: The second limiting portion further comprises a lower slide; the lower positioning grooves are arranged uniformly in an array inside the lower slide.
5. A rotating shaft device according to claim 4, characterized in that: The cross-sectional area of the lower positioning groove is larger than the cross-sectional area of the lower slideway.
6. A rotating shaft device according to claim 3, characterized in that: The number of the balls is less than or equal to the number of the positioning cavities.
7. A rotating shaft device according to claim 2, characterized in that: One end of the sleeve is provided with a mounting groove, and the other end is provided with an enlarged end portion; the elastic retaining spring is detachably connected to the mounting groove.
8. A rotating shaft device according to claim 2, characterized in that: The limiter comprises a limit end, a defining end and a locking portion; one end of the defining end is fixedly connected to the limit end, and the other end passes through the upper panel and is threadedly connected to the locking portion; a through hole is provided inside the limit end.
9. A rotating shaft device according to claim 2, characterized in that: The lower panel is provided with a positioning hole; the positioning bolt is threadedly connected with the positioning hole.
10. A rotating shaft device according to any one of claims 1 to 9, characterized in that: An end of the cross bar away from the stopper is provided with a mounting portion for mounting the experimental vessel.