Limiting device of worm gear speed reducer

Abstract

The utility model relates to the technical field of worm-gear speed reducers, and particularly discloses a worm-gear speed reducer limiting device which comprises a worm-gear speed reducer device and a handle, a limiting assembly is arranged at the top of the worm-gear speed reducer device and close to the handle, and a plurality of sets of circumferentially-distributed positioning grooves are formed in the outer side of the handle. The limiting assembly comprises a supporting plate installed at the top of the worm gear speed reducer device, an installation base is installed at the top of the supporting plate, a sliding groove is formed in the installation base, two symmetrical fixing rods are installed in the sliding groove, and the exteriors of the two fixing rods are jointly connected with the sliding base. A first spring is installed on one side of the interior of the sliding groove and located outside the fixing rod, one end of the first spring is connected with the sliding base, a positioning plate is installed on one side of the top of the sliding base, and a push plate is installed on the top of the positioning plate; and the handle can be fixed through the arrangement of the limiting assembly, so that the phenomenon that the handle is mistakenly touched by a person under some circumstances, mistaken switching-on or switching-off is caused, and use of the worm gear speed reducer device is affected is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to worm gear speed reducer technical field, specifically is a worm gear speed reducer stop device. BACKGROUND

[0002] Worm gear speed reducer is a kind of worm speed reducer power transmission mechanism, utilizes the speed converter of gear, the mutual rotation speed of motor is reduced to the desired number of revolutions, and the mechanism of larger torque is obtained, in the mechanism for transmission power and movement, the application range of speed reducer is quite extensive.

[0003] The handle of the manual worm gear speed reducer is not provided with a limiting device with anti-misoperation at present, the handle can be accidentally touched by people in some cases, the phenomenon of misoperation or misoperation can occur, unnecessary trouble can be caused, therefore, the worm gear speed reducer limiting device is provided. UTILITY MODEL CONTENT

[0004] The utility model discloses a worm gear speed reducer limiting device to solve the problem that the handle of the manual worm gear speed reducer is not provided with a limiting device with anti-misoperation at present, the handle can be accidentally touched by people in some cases, the phenomenon of misoperation or misoperation can occur, unnecessary trouble can be caused.

[0005] To achieve the above object, the utility model provides the following technical scheme: a worm gear speed reducer limiting device, including worm gear speed reducer device and handle, the top of worm gear speed reducer device and the position close to handle are provided with limiting component, the outside of handle is equipped with the positioning slot of several groups and the circumferential distribution;

[0006] Limiting component includes the support plate installed at the top of worm gear speed reducer device, the top of support plate is installed with mounting seat, the inside of mounting seat is equipped with sliding slot, the inside of sliding slot is installed with two symmetrical fixed rods, the outside of two fixed rods is connected with sliding seat in common, the inside one side of sliding slot and located the outside of fixed rod is installed with first spring, one end of first spring is connected with sliding seat, the top one side of sliding seat is installed with positioning plate, positioning plate is adapted with positioning slot, the top of positioning plate is installed with push plate.

[0007] Among them, the inside of positioning plate is equipped with through-hole, and the front side of positioning plate is provided with pressure sensor.

[0008] Among them, the top of mounting seat is installed with two symmetrical fixed plates, and the inside of two fixed plates is connected with positioning rod in common.

[0009] Among them, one end of positioning rod is installed with limiting plate, and the diameter of limiting plate is greater than the diameter of positioning rod.

[0010] One of the fixing plates has a second spring installed on one side, and the second spring is located outside the positioning rod.

[0011] One end of the second spring is connected to the limiting plate, and a control device is installed on the outer side of the mounting base.

[0012] An alarm and a timer are installed on one side of the control device, and an on / off switch is installed on the rear side of the control device.

[0013] This utility model has at least the following beneficial effects:

[0014] In use, the limit component can fix the handle to prevent accidental opening or closing of the worm gear reducer in certain situations, thus affecting its operation. Furthermore, the pressure sensor, control device, alarm, switch, and timer can remind operators to lock the handle, improving the overall performance. Attached Figure Description

[0015] Fig. 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Fig. 2 This is a schematic diagram of the limiting component of this utility model;

[0017] Fig. 3 This is a rear view of the limiting component of this utility model.

[0018] In the diagram: 1. Worm gear reducer; 2. Handle; 3. Limiting assembly; 4. Positioning groove; 31. Support plate; 32. Mounting base; 33. Slide groove; 34. Fixing rod; 35. Slide seat; 36. First spring; 37. Positioning plate; 38. Push plate; 39. Through hole; 310. Pressure sensor; 311. Fixing plate; 312. Positioning rod; 313. Limiting plate; 314. Second spring; 315. Control device; 316. Alarm; 317. On / off switch; 318. Timer. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example 1

[0021] Please see Figs. 1-3This utility model provides a technical solution: a worm gear reducer limiting device, including a worm gear reducer device 1 and a handle 2. A limiting component 3 is provided on the top of the worm gear reducer device 1 and near the handle 2. Several sets of positioning grooves 4 distributed in a circular shape are opened on the outer side of the handle 2.

[0022] The limiting assembly 3 includes a support plate 31 mounted on the top of the worm gear reducer 1. A mounting base 32 is mounted on the top of the support plate 31. A groove 33 is formed inside the mounting base 32. Two symmetrical fixing rods 34 are installed inside the groove 33. A slide block 35 is connected to the outside of the two fixing rods 34. A first spring 36 is installed on one side of the groove 33, outside the fixing rods 34. One end of the first spring 36 is connected to the slide block 35. A positioning plate 37 is mounted on the top side of the slide block 35. The positioning plate 37 is adapted to the positioning groove 4. A push plate 38 is mounted on the top of the positioning plate 37. A through hole 39 is formed inside the positioning plate 37. A pressure plate is provided on the front side of the positioning plate 37. Sensor 310 has two symmetrical fixing plates 311 mounted on the top of the mounting base 32. The two fixing plates 311 are connected to a positioning rod 312. A limit plate 313 is installed at one end of the positioning rod 312. The diameter of the limit plate 313 is larger than the diameter of the positioning rod 312. A second spring 314 is installed on one side of one of the fixing plates 311. The second spring 314 is located outside the positioning rod 312. One end of the second spring 314 is connected to the limit plate 313. A control device 315 is installed on the outer side of the mounting base 32. An alarm 316 and a timer 318 are respectively provided on one side of the control device 315. An on / off switch 317 is provided on the rear side of the control device 315.

[0023] When the worm gear reducer device 1 needs to be controlled using handle 2, to prevent the user from forgetting to use the limit component 3 afterward, the user should first press the on switch 317 in advance. At this time, the control device 315 will activate the timer 318, alarm 316, and pressure sensor 310. Then, the user should hold the limit plate 313 to move the positioning rod 312, and the second spring 314 will be in a stretched state. When the positioning rod 312 does not obstruct the movement trajectory of the positioning plate 37, the user can then move the positioning plate 37 by holding the push plate 38. When the positioning plate 37 is disengaged from the positioning groove 4, the pressure sensor 310 is sensed, the pressure value returns to zero, and the timer 318 is started. The slide 35 installed on one side of the positioning plate 37 slides outside the two fixed rods 34 and presses the two first springs 36 until the through hole 39 corresponds to the position of the positioning rod 312. The user releases the limiting plate 313, and the positioning rod 312 is positioned inside the through hole 39 by the setting of the second spring 314. At this time, the positioning plate 37 can be fixed, and the user can operate the handle 2.

[0024] To prevent users from forgetting to secure the handle 2 with the limiting component 3 after use, an alarm 316 will be activated when the pressure sensor 310 fails to detect a change in pressure value for an extended period (the timer 318 can be set to a specified time according to the user's needs). The alarm 316 will sound to remind the user that the handle 2 has not been secured. When the handle 2 needs to be secured, the user moves the limiting plate 313 until the positioning rod 312 disengages from the through hole 39. The first spring 36 then drives the slide 35 to reset, at which point the positioning plate 37 will be positioned in the corresponding positioning groove 4. Finally, the limiting plate 313 can be released. When the pressure sensor 310 senses the pressure value, the control device 315 will be in an automatic shut-off state, and the handle 2 will be secured to prevent accidental contact.

[0025] Example 2

[0026] like Figs. 1-3 In this second embodiment, the other structures remain unchanged. The difference from the first embodiment is that the diameter of the limiting plate 313 is larger than that of the positioning rod 312, which makes it easier for the user to pull the limiting plate 313. When the positioning rod 312 is located inside the through hole 39, the positioning plate 37 can be fixed to prevent the positioning plate 37 from springing back and affecting the user's operation of the handle 2.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A worm gear reducer limiting device, comprising a worm gear reducer device (1) and a handle (2), characterized in that: A limit component (3) is provided at the top of the worm gear reducer device (1) and near the handle (2). Several sets of positioning grooves (4) are provided on the outer side of the handle (2) in a circular pattern. The limiting component (3) includes a support plate (31) installed on the top of the worm gear reducer device (1). A mounting base (32) is installed on the top of the support plate (31). A sliding groove (33) is opened inside the mounting base (32). Two symmetrical fixing rods (34) are installed inside the sliding groove (33). A sliding block (35) is connected to the outside of the two fixing rods (34). A first spring (36) is installed on one side inside the sliding groove (33) and outside the fixing rods (34). One end of the first spring (36) is connected to the sliding block (35). A positioning plate (37) is installed on one side of the top of the sliding block (35). The positioning plate (37) is adapted to the positioning groove (4). A push plate (38) is installed on the top of the positioning plate (37).

2. The worm gear reducer limiting device according to claim 1, characterized in that: The positioning plate (37) has a through hole (39) inside, and a pressure sensor (310) is provided on the front side of the positioning plate (37).

3. The worm gear reducer limiting device according to claim 1, characterized in that: The top of the mounting base (32) is equipped with two symmetrical fixing plates (311), and the interior of the two fixing plates (311) is connected to a positioning rod (312).

4. The worm gear reducer limiting device according to claim 3, characterized in that: A limiting plate (313) is installed at one end of the positioning rod (312), and the diameter of the limiting plate (313) is larger than the diameter of the positioning rod (312).

5. The worm gear reducer limiting device according to claim 4, characterized in that: A second spring (314) is mounted on one side of one of the fixing plates (311), and the second spring (314) is located outside the positioning rod (312).

6. The worm gear reducer limiting device according to claim 5, characterized in that: One end of the second spring (314) is connected to the limiting plate (313), and a control device (315) is installed on the outer side of the mounting base (32).

7. The worm gear reducer limiting device according to claim 6, characterized in that: An alarm (316) and a timer (318) are respectively provided on one side of the control device (315), and an on / off switch (317) is provided on the rear side of the control device (315).

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