Scale hand wheel device with self-locking function

Abstract

The invention discloses a scale hand wheel device with a self-locking function, which comprises a base, a supporting block and a supporting seat are arranged on the base, a rotating shaft is arranged on the base, a hand wheel body is arranged on the rotating shaft, and a pointer and scales for recording the rotating angle and the number of turns of the hand wheel body are arranged on the supporting block. The rotating shaft is provided with an inserting assembly used for being in butt joint with the pointers in sequence, and the base is provided with a locking assembly used for locking the hand wheel body. According to the invention, the hand wheel body is rotated, a plurality of pointers are arranged on the guide block, the lower pointers are longer, and the insertion assembly descends by one grid every time the hand wheel body rotates by one circle, so that the insertion assembly drives one more pointer to synchronously rotate every time the hand wheel body rotates by one circle, and the lengths of the pointers are different; therefore, a worker can know the number of turns of rotation of the hand wheel body according to the number or length of the pointer or the number of turns of the scale pointed by the pointer, and can also obtain the rotation angle through the pointed scale.

Description

Technical Field

[0001] The present invention mainly relates to the technical field of handwheels, and in particular to a scale handwheel device with a self-locking function. Background Art

[0002] Various types of valves are often needed in the fields of pipeline ventilation, sewage treatment, gas, electric power and thermal systems. Valves play the role of controlling pipeline flow, preventing backflow and stabilizing pressure. Handwheels are installed on both manual and electric valves for manually driving the valves.

[0003] The existing handwheel device is provided with a scale for recording the angle of handwheel rotation, but the existing scale can only simply record how many circles the handwheel has rotated compared to the initial state, and cannot record how many circles the handwheel has rotated. It is necessary to manually record the number of circles the handwheel has rotated, but the handwheel is not reset immediately after rotation, and may remain rotated for a long time. In this way, the staff may easily forget the number of circles rotated. At the same time, if it is kept in the open state for a long time, the equipment will vibrate when working, and the handwheel will move when it vibrates, resulting in a change in the angle of handwheel rotation, which may affect the normal operation of the equipment. Summary of the Invention

[0004] The technical solution of the present invention addresses the technical problem that the existing technical solutions are too simple, and provides a solution that is significantly different from the existing technology. It mainly provides a scale handwheel device with a self-locking function, which is used to solve the technical problems raised in the above background technology that the scale on the existing handwheel cannot record the number of revolutions of the handwheel, and the handwheel remains in the open state for a long time, and vibration during equipment operation will drive the handwheel to move.

[0005] The technical solution adopted by the present invention to solve the above technical problems is:

[0006] A scale handwheel device with a self-locking function includes a base, a support block and a support seat are provided on the base, a rotating shaft is provided on the base, a handwheel body is provided on the rotating shaft, a pointer and a scale for recording the rotation angle and number of turns of the handwheel body are provided on the support block, a plug-in assembly for sequentially docking with multiple groups of pointers is provided on the rotating shaft, and a locking assembly for locking the handwheel body is provided on the base.

[0007] Preferably, a support block is provided on the support seat, and the rotating shaft passes through the support block and the support seat and is rotatably connected to the base.

[0008] Preferably, a limiting block is provided on the rotating shaft, the handwheel body is sleeved on the rotating shaft, a fixing block is provided on the rotating shaft, and a handle is provided on the handwheel body.

[0009] Preferably, a guide block is provided on the support block, a transmission block is provided on the guide block, and a tooth groove is provided on the transmission block.

[0010] Preferably, the plug-in assembly includes a connecting block, which is arranged on a rotating shaft, a threaded rod is provided on the connecting block, a threaded sleeve is threadedly sleeved on the threaded rod, a spur gear is provided on the threaded rod, and the spur gear is meshed with the tooth groove.

[0011] Preferably, the guide block is provided with a plurality of groups of pointers, the pointers are provided with guide grooves and plug-in grooves, and the guide grooves are communicated with the plug-in grooves, and the support block is provided with scales.

[0012] Preferably, the locking assembly includes a pillar, the pillar is arranged above the base, and a top block is provided on the pillar.

[0013] Preferably, a second clamping block is provided on the top block, and a first clamping block is provided in a circular array at the bottom of the handwheel body, and the first clamping block and the second clamping block are plugged into each other.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: when the handwheel body is rotated, multiple pointers are provided on the guide block, and the pointers closer to the bottom are longer. For each rotation of the handwheel body, the plug-in assembly will drop one grid downwards. In this way, for each rotation, the plug-in assembly will drive one more pointer to rotate synchronously, and the length of each pointer is also different. In this way, the staff can know the number of rotations of the handwheel body according to the number or length of the pointers or the number of rotations of the scales pointed to, and the angle of rotation can also be obtained through the pointed scales, which makes it convenient for the staff to count the number of rotations and angles of the handwheel body.

[0015] When the handwheel body rotates to the specified number of circles and the equipment needs to run for a long time, the handwheel body is pushed downward, and the handwheel body moves downward along the rotating shaft. The first clamping block on the handwheel body will be connected with the second clamping block on the top block. The first clamping block and the second clamping block fit together and are clamped together. In this way, the vibration generated by the long-term operation of the equipment will not cause the deviation of the handwheel body, thereby preventing the deviation of the handwheel body from causing errors in the operation of the equipment.

[0016] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the front three-dimensional structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the bottom three-dimensional structure of the present invention;

[0019] Figure 3This is a schematic diagram of the front three-dimensional structure of the locking assembly of the present invention;

[0020] Figure 4 This is a schematic diagram of the side perspective structure of the locking assembly of the present invention;

[0021] Figure 5 for Figure 4 A in the middle is an enlarged structural diagram;

[0022] The following are marked in the figure:

[0023] 1. Base; 2. Handwheel body; 3. Rotating shaft; 4. Handle; 5. Support block; 6. Support seat; 7. Guide block; 8. Transmission block; 9. Tooth groove; 10. Connecting block; 11. Threaded rod; 12. Threaded sleeve; 13. Flat gear; 14. Pointer; 15. Guide groove; 16. Insertion groove; 17. Scale; 18. Fixed block; 19. Limiting block; 20. First clamping block; 21. Pillar; 22. Top block; 23. Second clamping block. DETAILED DESCRIPTION

[0024] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the content disclosed in the present invention more thorough and comprehensive.

[0025] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly used by those skilled in the art to which the present invention pertains. The terminology used in the specification of the present invention is for the purpose of describing specific embodiments and is not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0027] Please refer to the attached Figure 1-Figure 5A scale handwheel device with a self-locking function includes a base 1, a support block 5 and a support seat 6 are provided on the base 1, a rotating shaft 3 is provided on the base 1, a handwheel body 2 is provided on the rotating shaft 3, a pointer 14 and a scale 17 for recording the rotation angle and number of circles of the handwheel body 2 are provided on the support block 5, a plug-in component for sequentially docking with multiple groups of pointers 14 is provided on the rotating shaft 3, and a locking component for locking the handwheel body 2 is provided on the base 1.

[0028] The specific operation process of the present invention is as follows: rotate the handwheel body 2, and the rotation of the handwheel body 2 first drives the first layer of pointer 14 to rotate through the plug-in component. The rotation angle of the handwheel body 2 can be obtained through the scale 17 set on the support block 5. After the handwheel body 2 rotates one circle, the handwheel body 2 is docked with the second layer of pointer 14 through the plug-in component. The continued rotation of the handwheel body 2 will drive the two layers of pointers 14 to rotate synchronously. In this way, every time the handwheel body 2 rotates one circle, it will dock with the upper layer of pointer 14 through the plug-in component, and the lower the pointer 14, the longer the length. In this way, the number of circles rotated by the handwheel body 2 can be judged according to the number of rotated pointers 14 or the length of the pointer 14. When the handwheel body 2 rotates to a certain angle, the equipment needs to run for a certain time, and the handwheel body 2 can be pushed down and locked by the locking component.

[0029] Please refer to Figures 1-4 A support block 5 is provided on the support seat 6, the rotating shaft 3 passes through the support block 5 and the support seat 6 and is rotatably connected to the base 1, a limiting block 19 is provided on the rotating shaft 3, the handwheel body 2 is sleeved on the rotating shaft 3, a fixing block 18 is provided on the rotating shaft 3, and a handle 4 is provided on the handwheel body 2.

[0030] The fixing block 18 is detachably connected to the top of the rotating shaft 3. The fixing block 18 is used to prevent the handwheel body 2 from falling off the rotating shaft 3. A limiting block 19 is provided on the rotating shaft 3. The limiting block 19 is used to limit the linear sliding of the rotating shaft 3 up and down, and when the handwheel body 2 rotates, the rotating shaft 3 can be stably driven to rotate through the limiting block 19. The handwheel body 2 is driven to rotate by shaking the handle 4, thereby driving the rotating shaft 3 to rotate, and the valve or the switch on the equipment is driven to rotate through the rotating shaft 3.

[0031] Please refer to Figure 4 and Figure 5The support block 5 is provided with a guide block 7, the guide block 7 is provided with a transmission block 8, the transmission block 8 is provided with a tooth groove 9, the plug-in assembly includes a connecting block 10, the connecting block 10 is provided on the rotating shaft 3, the connecting block 10 is provided with a threaded rod 11, the threaded rod 11 is threadedly sleeved with a threaded sleeve rod 12, the threaded rod 11 is provided with a flat gear 13, the flat gear 13 is engaged with the tooth groove 9, the guide block 7 is provided with multiple groups of pointers 14, the pointer 14 is provided with a guide groove 15 and a plug-in groove 16, and the guide groove 15 is connected to the plug-in groove 16, and a scale 17 is provided on the support block 5.

[0032] The rotating shaft 3 rotates, and the rotating shaft 3 drives the connecting block 10 to rotate, and the connecting block 10 drives the threaded rod 11 to revolve, and the threaded rod 11 rotates and drives the flat gear 13 to revolve, and a part of the tooth groove 9 is opened on the transmission block 8, and the other parts are set as limiting grooves. When the rotating shaft 3 rotates one circle faster, the flat gear 13 engages with the tooth groove 9. At this time, the tooth groove 9 will drive the flat gear 13 to rotate, and the flat gear 13 drives the threaded rod 11 to rotate, and the threaded sleeve 12 is inserted into the top pointer 14. The top pointer 14 limits the threaded sleeve 12 from rotating and supports the threaded sleeve 12. The threaded sleeve 12 is provided with a groove that matches the threaded rod 11. The threaded hole of the threaded rod 11 drives the threaded sleeve 12 to descend when it rotates, and the threaded sleeve 12 is inserted into the guide groove 15 on the next layer of pointer 14. As the rotating shaft 3 continues to revolve, the threaded sleeve 12 is driven to move along the guide groove 15 into the plug-in groove 16. When the two layers of pointers 14 coincide with each other, the threaded sleeve 12 is inserted into the plug-in groove 16. At this time, the flat gear 13 also moves from the tooth groove 9 to the limit groove. At this time, the rotation of the rotating shaft 3 will drive the two layers of pointers 14 to rotate, and even if the multiple layers of pointers 14 move synchronously, the scale 17 pointed to is the same. Several layers of pointers 14 represent several revolutions of the handwheel body 2, and the scale 17 represents the angle of rotation of this circle of the handwheel body 2.

[0033] Please refer to Figure 2-Figure 4 The locking assembly includes a pillar 21, which is arranged above the base 1. A top block 22 is provided on the pillar 21, and a second clamping block 23 is provided on the top block 22. A first clamping block 20 is provided in a circular array at the bottom of the handwheel body 2. The first clamping block 20 and the second clamping block 23 are plugged into each other.

[0034] Push the handwheel body 2 downward, and the handwheel body 2 moves down through the first clamping block 20 and is inserted into the gap in the middle of the second clamping block 23. The first clamping block 20 and the second clamping block 23 fit together. At this time, the handwheel body 2 is locked to each other by the first clamping block 20 and the second clamping block 23, and because the first clamping block 20 is relatively thin, the handwheel body 2 can be locked when it is rotated to any angle. Even if the first clamping block 20 and the second clamping block 23 are not plugged into each other, the fine-tuning handwheel body 2 can achieve the mutual plugging and locking of the first clamping block 20 and the second clamping block 23.

[0035] The above description of the present invention is exemplified in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as such non-substantial improvements are made using the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the scope of protection of the present invention.

Claims

1. A graduated handwheel device with a self-locking function, comprising a base (1), a support block (5) and a support seat (6) provided on the base (1), and a rotating shaft (3) provided on the base (1), characterized in that: A handwheel body (2) is provided on the rotating shaft (3), a pointer (14) and a scale (17) for recording the rotation angle and number of revolutions of the handwheel body (2) are provided on the supporting block (5), a plug-in assembly for sequentially docking with multiple groups of pointers (14) is provided on the rotating shaft (3), and a locking assembly for locking the handwheel body (2) is provided on the base (1).

2. A graduated handwheel device with a self-locking function according to claim 1, characterized in that: A support block (5) is provided on the support seat (6), and the rotating shaft (3) passes through the support block (5) and the support seat (6) and is rotatably connected to the base (1).

3. A scale handwheel device with a self-locking function according to claim 1, characterized in that: A limiting block (19) is provided on the rotating shaft (3), the handwheel body (2) is sleeved on the rotating shaft (3), a fixing block (18) is provided on the rotating shaft (3), and a handle (4) is provided on the handwheel body (2).

4. A graduated handwheel device with a self-locking function according to claim 1, characterized in that: A guide block (7) is provided on the support block (5), a transmission block (8) is provided on the guide block (7), and a tooth groove (9) is provided on the transmission block (8).

5. A scale handwheel device with a self-locking function according to claim 4, characterized in that: The plug-in assembly comprises a connecting block (10), the connecting block (10) being arranged on the rotating shaft (3), a threaded rod (11) being arranged on the connecting block (10), a threaded sleeve rod (12) being threadedly sleeved on the threaded rod (11), a spur gear (13) being arranged on the threaded rod (11), and the spur gear (13) being meshed with the tooth groove (9).

6. A scale handwheel device with a self-locking function according to claim 5, characterized in that: The guide block (7) is provided with a plurality of pointers (14), the pointers (14) are provided with guide grooves (15) and plug grooves (16), and the guide grooves (15) are connected to the plug grooves (16), and the support block (5) is provided with scales (17).

7. The graduated handwheel device with a self-locking function according to claim 1, characterized in that: The locking assembly comprises a pillar (21), the pillar (21) being arranged above the base (1), and a top block (22) being arranged on the pillar (21).

8. The scale handwheel device with self-locking function according to claim 7, characterized in that: A second clamping block (23) is provided on the top block (22), and a first clamping block (20) is provided in a circumferential array at the bottom of the handwheel body (2), and the first clamping block (20) and the second clamping block (23) are plugged into each other.

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