Manual and motorized switching device

Abstract

The utility model provides a manual and motorized switching device, and relates to the technical field of mechanical equipment. The switching shaft transversely penetrates through the shaft sleeve, and two annular positioning grooves are distributed in the switching shaft at intervals in the axial direction of the switching shaft; the positioning pin is longitudinally and slidably connected with the shaft sleeve; the other end of the positioning pin is provided with a pin head; the bottom of the pin head is provided with a limiting part protruding downwards. The spring is arranged in the shaft sleeve, one end of the spring is connected with the top of the limiting part, and the other end is directly or indirectly connected with the shaft sleeve; the spring is used for moving the pin head to the switching shaft; the lower side of the limiting part is in an arc shape matched with the bottom of the annular positioning groove in shape. And the top of the pin head is planar. And the lower side of the limiting part is in surface-to-surface contact with the bottom of the annular positioning groove, so that the limiting part is not easy to separate from the positioning groove when being violently vibrated and impacted. The top of the pin head is in a plane shape, one end of the spring is connected with the top of the limiting part, and the problem that clamping is prone to occurring is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical equipment, in particular to a manual and motorized switching device. Background Art

[0002] The original switching handle on a certain equipment is subject to severe vibration and impact. Since the contact surface between the steel ball and the annular positioning groove is line-to-line, when subjected to severe vibration and impact, the steel ball is easy to fall out of the annular positioning groove or get stuck in the spring, resulting in unreliable ball locking and jamming, making manual and motorized switching impossible. Utility Model Content

[0003] In view of the above situation, the utility model provides a manual and motorized switching device, which aims to solve the technical problem that the original switching handle on the existing equipment is easily dislodged from the annular positioning groove or stuck in the spring when subjected to severe vibration and impact, due to the line-to-line contact between the steel ball and the annular positioning groove, resulting in unreliable ball locking and jamming, which makes it impossible to achieve manual and motorized switching.

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

[0005] The utility model provides a manual and motorized switching device, comprising:

[0006] Bushings;

[0007] A switching shaft, which passes through the shaft sleeve transversely, and the switching shaft has two annular positioning grooves spaced apart along its axial direction;

[0008] A positioning pin is longitudinally slidably connected to the shaft sleeve; one end of the positioning pin is located outside the shaft sleeve, and the other end has a pin head; the bottom of the pin head has a downwardly protruding limiting portion;

[0009] A spring is arranged in the sleeve, one end of the spring is connected to the top of the limiting portion, and the other end is directly or indirectly connected to the sleeve; the spring is used to move the pin head toward the switching shaft;

[0010] in:

[0011] The lower side of the limiting portion is in an arc shape matching the bottom shape of the annular positioning groove;

[0012] The top of the pin head is flat.

[0013] In some embodiments of the present invention, the left end of the switching shaft has a first pin hole.

[0014] In some embodiments of the present invention, a connecting cap detachably connected to the switching shaft is also included.

[0015] In some embodiments of the present invention, the connecting cap is pin-connected to the switching shaft.

[0016] In some embodiments of the present invention, the upper portion of the positioning pin has a second pin hole.

[0017] In some embodiments of the present invention, a handle connected to the positioning pin is also included.

[0018] In some embodiments of the present invention, the handle is rotatably connected to the positioning pin.

[0019] In some embodiments of the present invention, the handle has a hole that cooperates with the second pin hole.

[0020] In some embodiments of the present invention, the handle has a first plane and a second plane that are perpendicular to each other, and the sleeve has a third plane, which is located below the handle and can be in parallel contact with the first plane or the second plane;

[0021] When the first plane is in parallel contact with the third plane, the limiting portion can cooperate with the annular positioning groove, and when the second plane is in parallel contact with the third plane, the limiting portion is disengaged from the annular positioning groove.

[0022] In some embodiments of the present invention, a mounting piece is provided on the outer wall of the shaft sleeve, and a plurality of screw holes are evenly distributed on the mounting piece.

[0023] The embodiments of the present invention have at least the following advantages or beneficial effects:

[0024] 1. The original steel ball is cancelled, and the positioning pin and spring with the above-mentioned limiting part are used to lock the switching shaft. The lower side of the limiting part is in surface contact with the bottom of the annular positioning groove. When subjected to severe vibration and impact, the limiting part is not easy to fall out of the positioning groove (relative to the steel ball).

[0025] Second, the top of the pin head is flat, and one end of the spring is connected to the top of the limit part. In this way, the problem of the original steel ball being stuck in the spring and causing it to get stuck will not occur.

[0026] Other features and advantages of the present invention will be set forth in the following description, and in part will become apparent from the description, or may be understood by practicing the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0028] Figure 1 It is a schematic diagram of the three-dimensional structure of the manual and motorized switching device;

[0029] Figure 2 It is a schematic diagram of the internal structure of the manual and motorized switching device;

[0030] Figure 3 for Figure 2 Left view of .

[0031] icon:

[0032] 1-sleeve, 11-mounting part, 12-third plane,

[0033] 2-switching shaft, 21-annular positioning groove, 22-first pin hole,

[0034] 3-positioning pin, 31-pin head, 311-limiting part, 32-second pin hole,

[0035] 4- Spring,

[0036] 5-Connection cap,

[0037] 6-handle, 61-first plane, 62-second plane. DETAILED DESCRIPTION

[0038] In the following, only some exemplary embodiments are briefly described. As those skilled in the art can appreciate, the described embodiments can be modified in various different ways without departing from the spirit or scope of the embodiments of the present invention.

[0039] In the description of the embodiments of the present invention, it needs to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of 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 embodiments of the present invention.

[0040] 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 embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0041] “Several” means one or more than one, unless otherwise clearly defined.

[0042] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral body; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0043] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0044] See also Figure 1~Figure 3 This embodiment provides a manual and motorized switching device, including a sleeve 1, a switching shaft 2, a positioning pin 3 and a spring 4.

[0045] A mounting member 11 is provided on the outer wall of the shaft sleeve 1 , and a plurality of screw holes are evenly distributed on the mounting member 11 to facilitate the installation of the shaft sleeve 1 .

[0046] The switching shaft 2 passes through the shaft sleeve 1 transversely, and two annular positioning grooves 21 are spaced apart along the axial direction of the switching shaft 2 .

[0047] The locating pin 3 is longitudinally slidably connected to the sleeve 1; one end of the locating pin 3 is located outside the sleeve 1, and the other end has a pin head 31; the bottom of the pin head 31 has a downwardly protruding limiting portion 311, and the lower side of the limiting portion 311 is in an arc shape that matches the bottom shape of the annular locating groove 21, that is, the lower side of the limiting portion 311 is in surface contact with the bottom of the annular locating groove 21; the top of the pin head 31 is planar.

[0048] The spring 4 is arranged in the sleeve 1 , one end of the spring 4 is connected to the top of the limiting portion 311 , and the other end is directly or indirectly connected to the sleeve 1 ; the spring 4 is used to move the pin head 31 toward the switching shaft 2 .

[0049] See also Figure 2When the switching shaft 2 is moved left and right, the relative positions of the two annular positioning grooves 21 and the limiting portion 311 can be adjusted. The two annular positioning grooves 21 correspond to the manual and automatic modes of the corresponding equipment respectively. Specifically, when different annular positioning grooves 21 cooperate with the limiting portion 311, the position of the right end of the switching shaft 2 changes. The right end of the switching shaft 2 can be installed with a transmission component, and the right end of the switching shaft 2 can be provided with two sets of drive components (corresponding to manual and automatic modes). When the transmission component at the right end of the switching shaft 2 cooperates with a set of drive components, it is in the corresponding mode (manual / automatic). Figure 2 In the state shown, corresponding to the automatic mode, when switching to the manual mode, the positioning pin 3 and the pin head 31 are moved upward to make the limit portion 311 disengage from the annular positioning groove 21, and then the switching shaft 2 is moved to the left. After the limit portion 311 is aligned with the other annular positioning groove 21, the positioning pin 3 is released to make the limit portion 311 fit together with the other annular positioning groove 21, so that the manual mode is switched.

[0050] The above-mentioned transmission components and two sets of drive assemblies are existing equipment and will not be described in detail in this embodiment.

[0051] The left end of the switch shaft 2 has a first pin hole 22, so that when switching between manual and automatic modes, the switch shaft 2 can be moved laterally with the help of a tool. In this embodiment, the tool includes a connection cap 5 sleeved on the left end of the switch shaft 2, and the connection cap 5 has a hole used in conjunction with the first pin hole 22, and the connection cap 5 is pin-connected to the switch shaft 2. In other embodiments of the present invention, the connection cap 5 can also be detachably connected to the switch shaft 2 in other ways.

[0052] See also Figure 3 The upper part of the positioning pin 3 has a second pin hole 32, so that when switching between manual and automatic modes, the positioning pin 3 can be longitudinally moved by means of a tool to separate the limiting portion 311 and the corresponding annular positioning groove 21. In this embodiment, the tool includes a handle 6 rotatably connected to the positioning pin 3, and the handle 6 has a hole used in conjunction with the second pin hole 32. A shaft or a pin is passed through the second pin hole 32 and the hole on the handle 6, so that the handle 6 can be rotatably connected to the positioning pin 3. In other embodiments, the handle 6 can also be fixedly connected to the positioning pin 3.

[0053] See also Figure 3The handle 6 has a first plane 61 and a second plane 62 which are perpendicular to each other, and the sleeve 1 has a third plane 12. The third plane 12 is located below the handle 6 and can be in parallel contact with the first plane 61 or the second plane 62. When the first plane 61 is in parallel contact with the third plane 12, the limiting portion 311 can cooperate with the annular positioning groove 21. When the second plane 62 is in parallel contact with the third plane 12, the limiting portion 311 is separated from the annular positioning groove 21. When switching between manual and automatic modes, one end of the handle 6 is lifted to rotate around the second pin hole 32. During the rotation of the handle 6, the sleeve 1 will react on the handle 6, so that the handle 6 drives the positioning pin 3 and the limiting portion 311 to move upward. When the second plane 62 is in parallel contact with the third plane 12, the limiting portion 311 is separated from the annular positioning groove 21 and remains above the switching shaft 2, so as to facilitate single-handed operation to move the switching shaft 2 horizontally.

[0054] In combination with the above content, this embodiment has at least the following beneficial effects:

[0055] First, the original steel ball is eliminated, and the positioning pin 3 with the above-mentioned limiting portion 311 and the spring 4 are used to lock the switching shaft 2. The lower side of the limiting portion 311 is in surface contact with the bottom of the annular positioning groove 21. When subjected to severe vibration and impact, the limiting portion 311 is not easy to fall out of the positioning groove (relative to the steel ball).

[0056] Second, the top of the pin head 31 is flat, and one end of the spring 4 is connected to the top of the limiting portion 311. In this way, the problem of the original steel ball being stuck in the spring 4 and causing it to be stuck will not occur.

[0057] 3. A handle 6 and a connecting cap 5 are added to facilitate operation.

[0058] 4. The handle 6 has a first plane 61 and a second plane 62 which are perpendicular to each other, and the sleeve 1 has a third plane 12. The third plane 12 is located below the handle 6 and can be in parallel contact with the first plane 61 or the second plane 62. When the first plane 61 is in parallel contact with the third plane 12, the limiting portion 311 can cooperate with the annular positioning groove 21. When the second plane 62 is in parallel contact with the third plane 12, the limiting portion 311 is disengaged from the annular positioning groove 21. In this way, it is convenient for the user to operate with one hand to move the switching shaft 2 horizontally, which increases the convenience of operation.

[0059] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. In the absence of conflicts, the embodiments of the present application and the features in the embodiments may be combined with each other at will. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A manual and motorized switching device, characterized in that: include: Bushings; A switching shaft, which passes through the shaft sleeve transversely, and the switching shaft has two annular positioning grooves spaced apart along its axial direction; A positioning pin is longitudinally slidably connected to the shaft sleeve; one end of the positioning pin is located outside the shaft sleeve, and the other end has a pin head; the bottom of the pin head has a downwardly protruding limiting portion; A spring is arranged in the sleeve, one end of the spring is connected to the top of the limiting portion, and the other end is directly or indirectly connected to the sleeve; the spring is used to move the pin head toward the switching shaft; in: The lower side of the limiting portion is in an arc shape matching the bottom shape of the annular positioning groove; The top of the pin head is flat.

2. The manual and motorized switching device according to claim 1, characterized in that: The left end of the switching shaft has a first pin hole.

3. The manual and motorized switching device according to claim 1, characterized in that: It also includes a connecting cap that is detachably connected to the switching shaft.

4. The manual and motorized switching device according to claim 3, characterized in that: The connecting cap is pin-connected with the switching shaft.

5. The manual and motorized switching device according to claim 1, characterized in that: A mounting piece is arranged on the outer wall of the shaft sleeve, and a plurality of screw holes are evenly distributed on the mounting piece.

6. The manual and motorized switching device according to claim 1, characterized in that: The upper portion of the positioning pin is provided with a second pin hole.

7. The manual and motorized switching device according to any one of claims 1 to 6, characterized in that: Also included is a handle connected to the positioning pin.

8. The manual and motorized switching device according to claim 7, characterized in that: The handle is rotatably connected to the positioning pin.

9. The manual and motorized switching device according to claim 8, characterized in that: The upper portion of the positioning pin is provided with a second pin hole, and the handle is provided with a hole used in conjunction with the second pin hole.

10. The manual and motorized switching device according to claim 8, characterized in that: The handle has a first plane and a second plane that are perpendicular to each other, and the sleeve has a third plane, which is located below the handle and can be in parallel contact with the first plane or the second plane; When the first plane is in parallel contact with the third plane, the limiting portion can cooperate with the annular positioning groove, and when the second plane is in parallel contact with the third plane, the limiting portion is disengaged from the annular positioning groove.

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