A limited axis with a movable structure
By designing a limit axis with a moving structure, using the adjustment structure and positioning components to achieve limiting effect in different usage situations, and fixing the reset block by riveting blocks, the problem that the existing limit axis cannot meet multiple usage situations is solved, achieving the dual advantages of stability and cost.
Patent Information
- Application Number
- CN202420717588.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-09
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2034-04-09
AI Technical Summary
The existing limit axes cannot meet the needs of multiple usage conditions under different environments, resulting in the need to customize limit axes of different specifications, which increases the cost of mechanical equipment.
A limiting shaft with a moving structure is designed. By setting a structure that can adjust the position of the shaft sleeve and the moving shaft, combining the positioning component and the control component, the limiting effect under different usage conditions is achieved, and the reset block is fixed by a riveted block to prevent the positioning component from automatically operating.
The position of the limit axis is adjusted according to needs, meeting the limit effect under different usage conditions, ensuring the stability of use, reducing customization costs, and facilitating practical application.
Smart Images
Figure CN222717270U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of limiting shafts, in particular to a limiting shaft with a moving structure. Background Art
[0002] A limit shaft is a device used to limit or control the range of mechanical motion. It is usually composed of a shaft, a sleeve, a limit pin and other components. It is mainly used to limit the displacement range of mechanical parts during movement to protect the equipment.
[0003] Existing limit axes are mainly used in mechanical equipment. By setting a fixed axis or travel range, the displacement range of mechanical parts during movement is limited to ensure that the equipment operates within a safe range to avoid accidents or damage.
[0004] However, in actual application, the limit stroke or limit range of the limit shaft is different in different environments, and the limit sleeve is usually fixedly connected to the main shaft, so the limit shaft under the same specification cannot meet the needs of various usage situations, and it is necessary to customize suitable limit shafts in various usage environments, which greatly increases the cost of mechanical equipment and is not conducive to practical application. Utility Model Content
[0005] The purpose of the utility model is to provide a limiting shaft with a movable structure to solve the problems raised in the above background technology.
[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:
[0007] A limit shaft with a movable structure comprises a main shaft; a partial area of the main shaft is set as a movable shaft with a relatively small shaft diameter, a shaft sleeve is sleeved between the main shaft and the outer side of the movable shaft, the inner wall of the shaft sleeve is slidably connected to the outer side of the main shaft, a positioning component is set between the shaft sleeve and the movable shaft, the positioning component is used to position the shaft sleeve, the positioning component is used to fix the shaft sleeve and the movable shaft after moving to a suitable position, and a control component is set inside the movable shaft, the control component is used to control the action of the positioning component.
[0008] By adopting the above technical solution, a structure capable of adjusting the relative position of the sleeve and the movable shaft is provided, so that during use, the position of the sleeve relative to the movable shaft can be controlled as needed, thereby achieving a limiting effect under different usage conditions and requirements, and a positioning component is provided to fix it to ensure that the sleeve and the movable shaft remain fixed during use, thereby ensuring stability in use.
[0009] A further improvement of the technical solution of the utility model is that the positioning component includes positioning grooves symmetrically opened on the outside of the movable shaft, movable teeth are slidably connected between the inner walls of the positioning grooves, positioning teeth are fixedly connected between the inner walls of the sleeves, the positioning teeth are used in conjunction with the movable teeth, and the movable teeth are adjusted and fixed by the control component.
[0010] By adopting the above technical solution, after the sleeve moves to the appropriate position, the reset block is released so that it is reset under the rebound of the reset spring, so that the positioning tooth and the moving tooth are engaged and fixed, thereby fixing the sleeve and completing the adjustment and fixation of the limit position.
[0011] A further improvement of the technical solution of the utility model is that the control component includes a slide groove opened inside the movable shaft, a slider is symmetrically slidably connected between the inner walls of the slide groove, a linkage block is slidably connected to one side of the inner wall of the positioning groove, one side of the linkage block extends to the inside of the slide groove and is fixedly connected to one side of the slider, a connecting groove is opened on the side where the slider is close to each other, and a transmission groove connected to the connecting groove is symmetrically opened on the outer side of the slider.
[0012] By adopting the above technical solution, by moving the slider toward the adjacent side, the movable teeth can be driven to move toward the adjacent side and disengage from the positioning teeth, so that the sleeve can slide relative to the main shaft, thereby realizing the movable adjustment of the limit position.
[0013] A further improvement of the technical solution of the utility model is that: the control component also includes a reset groove opened at one end of the movable shaft, an operating rod is slidably connected to one side of the inner wall of the reset groove, a reset block is slidably connected between the inner walls of the reset groove, one end of the operating rod is fixedly connected to the reset block, the end of the operating rod away from the reset block extends to the inside of the slide groove and is fixedly connected to a connecting rod, both ends of the connecting rod extend to the inside of the connecting groove respectively and are fixedly connected to a transmission rod, the transmission rod is slidably connected to the transmission groove, and a reset spring is sleeved on the outside of the operating rod and located inside the reset groove.
[0014] By adopting the above technical solution, the riveting block is pressed by a tool, so that the riveting block drives the operating rod to move and squeeze the linkage rod, so that the linkage rod drives the transmission rods at both ends to squeeze the inclined groove transmission groove, thereby making the two sliders move toward the closer side.
[0015] A further improvement of the technical solution of the utility model is that: the reset groove is set as a rectangular groove, the shape of the reset groove on the end face of the movable shaft is rectangular, a riveting groove is opened at one end of the movable shaft close to the reset groove, and the side of the reset block away from the operating rod is rotatably connected with a riveting block through a damping shaft, and the riveting block is set as a rectangular block used in conjunction with the reset groove.
[0016] By adopting the above technical solution, it is convenient to rotate the riveting block to the longer side to rivet with the riveting groove, so that the reset block will not move along with the movement of the main shaft during use, thereby preventing the positioning component from moving automatically.
[0017] A further improvement of the technical solution of the utility model is that the transmission groove is an inclined groove.
[0018] By adopting the above technical solution, when the axial force is applied to the moving shaft, the two sliding blocks can obtain the radial force of the moving shaft.
[0019] A further improvement of the technical solution of the utility model is that the length of the rectangle of the riveting block on the end face of the moving shaft is greater than the width of the riveting groove and less than the length of the riveting groove.
[0020] By adopting the above technical solution, when the riveting groove is rotated until the long side of the riveting block corresponds to the long side of the reset groove and the short side corresponds to the short side, the riveting block can slide into the inside of the riveting groove.
[0021] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:
[0022] 1. The utility model provides a limit shaft with a movable structure. By setting a structure capable of adjusting the relative position of a shaft sleeve and a movable shaft, the position of the shaft sleeve relative to the movable shaft can be controlled as required during use, thereby achieving a limit effect under different usage conditions and requirements. The shaft sleeve and the movable shaft are fixed by setting a positioning component to ensure that they remain fixed during use, thereby ensuring stability in use and greatly facilitating practical applications.
[0023] 2. The utility model provides a limit shaft with a movable structure, in which a reset block is fixed by setting a riveting block. During use, the riveting block is rotated to the longer side and riveted with the riveting groove, so that the reset block will not move along with the movement of the main shaft during use, thereby preventing the positioning component from moving automatically, thereby ensuring the stability of the limit shaft. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] The present invention will be further described below in conjunction with the accompanying drawings.
[0025] Figure 1 It is a structural schematic diagram of the utility model from the first perspective;
[0026] Figure 2 It is a structural schematic diagram of the utility model from a second viewing angle;
[0027] Figure 3 It is a partial cross-sectional schematic diagram of the utility model;
[0028] Figure 4 It is a cross-sectional schematic diagram of the utility model as a whole;
[0029] Figure 5 For the utility model Figure 4 Enlarged view of point A in the middle;
[0030] As shown in the accompanying drawings: 1. main shaft; 101. moving shaft; 102. positioning groove; 2. bushing; 3. moving tooth; 401. slide groove; 402. slider; 403. linkage block; 404. connecting groove; 405. transmission groove; 406. reset groove; 407. operating rod; 408. transmission rod; 409. reset block; 410. reset spring; 411. linkage rod; 5. riveting block; 6. riveting groove; 7. positioning tooth. DETAILED DESCRIPTION
[0031] The present invention is further described in detail below in conjunction with the embodiments:
[0032] Example
[0033] like Figure 1 and Figure 4 As shown, the utility model provides a limit shaft with a movable structure, including a main shaft 1; a partial area of the main shaft 1 is set as a movable shaft 101 with a relatively small shaft diameter, a shaft sleeve 2 is sleeved between the main shaft 1 and the outer side of the movable shaft 101, the inner wall of the shaft sleeve 2 is slidably connected to the outer side of the main shaft 1, a positioning component is arranged between the shaft sleeve 2 and the movable shaft 101, the positioning component is used to position the shaft sleeve 2, the positioning component is used to fix the shaft sleeve 2 and the movable shaft 101 after moving to a suitable position, and a control component is arranged inside the movable shaft 101, and the control component is used to control the action of the positioning component.
[0034] In this embodiment, a structure capable of adjusting the relative position of the sleeve 2 and the movable shaft 101 is provided, so that during use, the position of the sleeve 2 relative to the movable shaft 101 can be controlled as needed, thereby achieving a limiting effect under different usage conditions and requirements, and a positioning component is provided for fixing to ensure that the sleeve 2 and the movable shaft 101 remain fixed during use, thereby ensuring stability of use and greatly facilitating practical applications.
[0035] like Figure 4 and Figure 5 As shown, preferably, the positioning component includes a positioning groove 102 symmetrically opened on the outside of the movable shaft 101, a movable tooth 3 is slidably connected between the inner walls of the positioning groove 102, a positioning tooth 7 is fixedly connected between the inner walls of the sleeve 2, the positioning tooth 7 is used in conjunction with the movable tooth 3, and the movable tooth 3 is adjusted and fixed by the control component.
[0036] In this embodiment, after the sleeve 2 moves to a suitable position, the reset block 409 is released so that the reset block 409 is reset under the rebound of the reset spring 410, so that the positioning tooth 7 is meshed and fixed with the moving tooth 3, thereby fixing the sleeve 2 and completing the adjustment and fixation of the limit position.
[0037] like Figure 2 and Figure 4 As shown, preferably, the control component includes a slide groove 401 opened inside the movable shaft 101, and a slider 402 is symmetrically slidably connected between the inner walls of the slide groove 401, and a connecting block 403 is slidably connected to one side of the inner wall of the positioning groove 102, and one side of the connecting block 403 extends to the inside of the slide groove 401 and is fixedly connected to one side of the slider 402, and a connecting groove 404 is opened on the side close to the slider 402, and a transmission groove 405 connected to the connecting groove 404 is symmetrically opened on the outer side of the slider 402.
[0038] In this embodiment, by moving the slider 402 toward the approaching side, the movable tooth 3 can be driven to move toward the approaching side and disengage from the positioning tooth 7, so that the sleeve 2 can slide relative to the main shaft 1, thereby realizing the movement and adjustment of the limit position.
[0039] like Figure 4 and Figure 5 As shown, preferably, the control component also includes a reset groove 406 opened at one end of the movable shaft 101, an operating rod 407 is slidably connected to one side of the inner wall of the reset groove 406, a reset block 409 is slidably connected between the inner walls of the reset groove 406, one end of the operating rod 407 is fixedly connected to the reset block 409, the end of the operating rod 407 away from the reset block 409 extends to the inside of the slide groove 401 and is fixedly connected to a connecting rod, both ends of the connecting rod extend to the inside of the connecting groove 404 respectively and are fixedly connected to a transmission rod 408, the transmission rod 408 is slidably connected to the transmission groove 405, and a reset spring 410 is sleeved on the outside of the operating rod 407 and located inside the reset groove 406.
[0040] In this embodiment, the riveting block 5 is pressed by a tool, so that the riveting block 5 drives the operating rod 407 to move and squeeze the linkage rod 411, so that the linkage rod 411 drives the transmission rods 408 at both ends to squeeze the inclined groove transmission groove 405, thereby making the two sliders 402 move toward the side close to each other.
[0041] like Figure 4 and Figure 5 As shown, preferably, the reset groove 406 is configured as a rectangular groove, and the shape of the reset groove 406 on the end face of the movable shaft 101 is rectangular. A riveting groove 6 is provided at one end of the movable shaft 101 close to the reset groove 406, and a riveting block 5 is rotatably connected to the side of the reset block 409 away from the operating rod 407 through a damping shaft, and the riveting block 5 is configured as a rectangular block used in conjunction with the reset groove 406.
[0042] In this embodiment, the riveting block 5 is rotated to the longer side to be riveted with the riveting groove 6, so that the reset block 409 will not move along with the movement of the main shaft 1 during use, thereby preventing the positioning component from automatically moving.
[0043] like Figure 5 As shown, preferably, the transmission groove 405 is an inclined groove.
[0044] In this embodiment, when the axial force is applied to the moving shaft 101 , the two sliders 402 can obtain the radial force of the moving shaft 101 .
[0045] Preferably, the length of the rectangle of the riveting block 5 on the end surface of the moving shaft 101 is greater than the width of the riveting groove 6 and less than the length of the riveting groove 6 .
[0046] In this embodiment, when the riveting groove 6 is rotated until the long side of the riveting block 5 corresponds to the long side of the reset groove 406 and the short side corresponds to the short side, the riveting block 5 can slide into the inside of the riveting groove 6.
[0047] The working principle of the limit axis with a movable structure is described in detail below.
[0048] like Figure 1-5 As shown, when the position of the outer sleeve 2 of the main shaft 1 needs to be adjusted, a tool (such as a flat-blade screwdriver) is used to extend into the rivet groove 6 and to turn the rivet block 5 until the long side of the rivet block 5 and the reset groove 406 can correspond to the long side, and the short side corresponds to the short side, and then the rivet block 5 can be pressed by the tool, so that the rivet block 5 drives the operating rod 407 to move, and squeezes the linkage rod 411, so that the linkage rod 411 drives the transmission rods 408 at both ends to squeeze the inclined groove transmission groove 405, so that the two sliders 402 move toward the side close to each other, and drive the moving tooth 3 to move toward the side close to each other, disengage from the positioning tooth 7, so that the sleeve 2 can slide relative to the main shaft 1, and the movement adjustment of the limit position is realized. Section; after the sleeve 2 moves to the appropriate position, the reset block 409 is released, so that the reset block 409 is reset under the rebound of the reset spring 410, and the linkage rod 411 is reset by the operating rod 407, so that the two transmission rods 408 squeeze the transmission groove 405, thereby making the slider 402 move to the side away from each other, and driving the moving tooth 3 to move to the side away from each other (there is a situation in which the positioning tooth 7 is not facing the tooth gap of the moving tooth 3 during the reset process. At this time, the sleeve 2 can be fine-tuned so that the positioning tooth 7 and the tooth gap of the moving tooth 3 are facing each other, and normal reset can be achieved), so that the positioning tooth 7 is meshed and fixed with the moving tooth 3, and then the sleeve 2 is fixed, and then the limit position is adjusted and fixed.
[0049] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.
Claims
1. A limit shaft with a movable structure, comprising a main shaft (1); characterized in that: A partial area of the main shaft (1) is configured as a movable shaft (101) having a relatively small shaft diameter; a shaft sleeve (2) is sleeved between the main shaft (1) and the outer sides of the movable shaft (101); the inner wall of the shaft sleeve (2) is slidably connected to the outer side of the main shaft (1); a positioning component is provided between the shaft sleeve (2) and the movable shaft (101); the positioning component is used to position the shaft sleeve (2); the positioning component is used to fix the shaft sleeve (2) and the movable shaft (101) after they are moved to a suitable position; a control component is provided inside the movable shaft (101); the control component is used to control the action of the positioning component.
2. The limiting shaft with a movable structure according to claim 1, characterized in that: The positioning assembly comprises a positioning groove (102) symmetrically arranged on the outside of the movable shaft (101); a movable tooth (3) is slidably connected between the inner walls of the positioning groove (102); a positioning tooth (7) is fixedly connected between the inner walls of the shaft sleeve (2); the positioning tooth (7) is used in conjunction with the movable tooth (3); and the movable tooth (3) is adjusted and fixed by a control assembly.
3. The limiting shaft with a movable structure according to claim 2, characterized in that: The control component comprises a slide groove (401) provided inside the movable shaft (101), a slider (402) being symmetrically slidably connected between the inner walls of the slide groove (401), a linkage block (403) being slidably connected to one side of the inner wall of the positioning groove (102), one side of the linkage block (403) extending into the interior of the slide groove (401) and being fixedly connected to one side of the slider (402), a connecting groove (404) being provided on the adjacent side of the slider (402), and a transmission groove (405) being symmetrically provided on the outer side of the slider (402) and being communicated with the connecting groove (404).
4. The limiting shaft with a movable structure according to claim 3, characterized in that: The control assembly further comprises a reset groove (406) provided at one end of the movable shaft (101); an operating rod (407) is slidably connected to one side of the inner wall of the reset groove (406); a reset block (409) is slidably connected between the inner walls of the reset groove (406); one end of the operating rod (407) is fixedly connected to the reset block (409); one end of the operating rod (407) away from the reset block (409) extends to the inside of the slide groove (401) and is fixedly connected to a linkage rod (411); two ends of the linkage rod (411) respectively extend to the inside of the connecting groove (404) and are fixedly connected to a transmission rod (408); the transmission rod (408) is slidably connected to the transmission groove (405); a reset spring (410) is sleeved on the outside of the operating rod (407) and located inside the reset groove (406).
5. The limiting shaft with a movable structure according to claim 4, characterized in that: The reset groove (406) is configured as a rectangular parallelepiped groove. The reset groove (406) is in a rectangular shape on the end surface of the movable shaft (101). A riveting groove (6) is provided at one end of the movable shaft (101) close to the reset groove (406). A side of the reset block (409) away from the operating rod (407) is rotatably connected to a riveting block (5) via a damping shaft. The riveting block (5) is configured as a rectangular parallelepiped block used in conjunction with the reset groove (406).
6. The limiting shaft with a movable structure according to claim 5, characterized in that: The transmission groove (405) is an inclined groove.
7. The limiting shaft with a movable structure according to claim 6, characterized in that: The length of the rectangle of the riveting block (5) on the end surface of the moving shaft (101) is greater than the width of the riveting groove (6) and less than the length of the riveting groove (6).