Hand wheel adjusting structure for locking and stabilizing hand wheel

Abstract

The invention relates to the technical field of hand wheels, in particular to a hand wheel adjusting structure for locking and stabilizing a hand wheel, which comprises a guide rod, the inner wall of the guide rod is provided with the hand wheel, the inner wall of the hand wheel is movably connected with a locking screw rod, the hand wheel comprises a hand wheel main body, and the left side of the hand wheel main body is fixedly connected with a clamping sleeve; the hand wheel comprises a hand wheel body, the hand wheel body comprises a holding wheel connecting disc, connecting rods are fixedly connected to the two sides of the middle of the right side of the holding wheel connecting disc, a lead screw connecting disc is fixedly connected to the right sides of the inner sides of the two connecting rods, and a lead screw is rotationally connected to the inner wall of the lead screw connecting disc. By means of the structure, efficient and stable connection of the hand wheel and the locking screw rod is achieved, the locking stability of equipment is improved, the operation process is greatly simplified, a user can easily and rapidly complete adjustment and locking of the hand wheel, and in addition, the position of the holding wheel can be pushed to be adjusted through movement of the transmission shaft.

Description

Technical Field

[0001] The present invention relates to the technical field of handwheels, and more particularly to a handwheel adjusting structure for locking and stabilizing a handwheel. Background Art

[0002] A handwheel is a manually operated rotating device, typically consisting of a circular wheel and an attached handle. Handwheels are widely used on various mechanical equipment and tools. Their primary function is to adjust, control, or operate mechanical systems through manual rotation. The intuitive design of the handwheel allows the operator to easily control the mechanical device through manual rotation. This device is commonly found in various types of equipment, including machine tools, workbenches, lathes, manually operated valves, and instrument adjustment. Handwheels are typically designed to be easy to grip, allowing the operator to perform rotational movements with ease and sufficient feel and precision. The size, shape, and purpose of the handwheel vary depending on the specific application requirements.

[0003] According to the patent document: CN117742443A, a locking handwheel anti-slip structure and method includes a guide rod, a transmission sleeve and a handwheel assembly. The handwheel assembly has a handle, a gear and a rack transmission mechanism. By rotating the handle, the connecting plate and the top rod are driven to move, thereby realizing the quick engagement of the handwheel. The unique feature is that the handle adopts a foldable and telescopic design. Through the storage slot and the buckling notch, the handwheel assembly is compact and easy to carry. The anti-slip mechanism includes a straight slot, a cross slide and an extrusion slope, which effectively prevents the rack from dislocating and improves the stability of use. In terms of disassembly, the design of the pull ring and the compression spring makes the operation easier. The special design of the storage sleeve not only prevents the handwheel from slipping and is quick to install, but also can be easily adapted to various usage environments. The handwheel of this invention has an ingenious structure and is convenient, stable and portable. It is suitable for a variety of mechanical equipment and tools, improving the efficiency and safety of operation.

[0004] The locking screw is movably connected to the guide rod through the shaft end nut. During actual application, the shaft end nut is easy to loosen, causing the screw and the handwheel to fall as a whole. This not only affects the normal operation of the equipment, but also brings serious safety hazards. Because this loosening phenomenon makes the safety of the entire device insufficient, the safety of the operator and the equipment cannot be guaranteed. In addition, during the use of the handwheel, the position of the handwheel wheel cannot be adjusted. In some special situations such as small space or limited operating angle, it is difficult for the operator to comfortably grip and turn the handle, thereby affecting the convenience and efficiency of the operation. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a handwheel adjustment structure for locking and stabilizing the handwheel. The technical problem to be solved by the present invention is that the nut at the end of the shaft is easy to loosen, causing the screw and the handwheel to fall as a whole, which not only affects the normal operation of the equipment, but also brings serious safety hazards. Because this loosening phenomenon makes the safety of the entire device insufficient, the safety of the operator and the equipment cannot be guaranteed. In addition, during the use of the handwheel, since the position of the handwheel rotating wheel cannot be adjusted, in some special situations such as when the space is small or the operating angle is limited, it is difficult for the operator to comfortably grip and turn the handle, thereby affecting the convenience and efficiency of the operation.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] A handwheel adjustment structure for locking and stabilizing a handwheel, comprising a guide rod, an inner wall of which is provided with a handwheel, and an inner wall of which is movably connected with a locking screw;

[0008] The handwheel comprises a handwheel body, and a clamping sleeve is fixedly connected to the left side of the handwheel body;

[0009] The handwheel body includes a grip wheel connecting plate, and both sides of the middle right side of the grip wheel connecting plate are fixedly connected to connecting rods, and the right sides of the inner sides of the two connecting rods are fixedly connected to a screw rod connecting plate, and the inner wall of the screw rod connecting plate is rotatably connected to a screw rod, and the left end of the screw rod extends to the left side of the grip wheel connecting plate.

[0010] As a further solution of the present invention: the right side of the outer wall of the screw is threadedly connected to the transmission shaft, the right end of the screw is fixedly connected to the screw shaft, the outer wall of the grip wheel connecting disk is rotatably connected to the cylindrical rotating rod in a circular array, and the multiple cylindrical rotating rods are rotatably connected to the grip wheel at one end away from the grip wheel connecting disk.

[0011] As a further solution of the present invention: the outer wall annular array of the transmission shaft is fixedly connected to a position control rotating rod, and the side of multiple position control rotating rods away from the transmission shaft is rotatably connected to the inner side of the grip wheel, and the screw rod is threadedly connected to the outer wall on one side of the left side of the grip wheel connecting plate.

[0012] As a further solution of the present invention: the left inner wall of the nut rod is rotatably connected to two rotating rods with opposite inclinations, the two rotating rods are rotatably connected to the expansion and contraction combination rod on the side away from the nut rod, and the two expanding and contraction combination rods are fixedly connected to the expansion and contraction combination rod on the side away from the rotating rod.

[0013] As a further solution of the present invention: the clamping sleeve includes a clamping sleeve shell, the inner wall of the clamping sleeve shell is fixedly connected to an inner clamping tube, the right side of the clamping sleeve shell is fixedly connected to the left side of the grip wheel connecting plate, the top and bottom of the inner wall of the inner clamping tube are respectively movably connected to the outside of the two semicircular splints, and the front and rear sides of the inner wall of the inner clamping tube are respectively fixedly connected to guide rods.

[0014] As a further solution of the present invention: the top and bottom of the inner wall of the inner clamping tube are movably connected to the outside of the two semicircular clamping plates, and the front and rear sides of the inner wall of the inner clamping tube are fixedly connected with guide rods.

[0015] As a further solution of the present invention: the top and the bottom of the left side of the inner clamping tube are respectively fixedly connected with connecting blocks, and the inner walls of the two connecting blocks are both slidably connected with columnar sliding rods.

[0016] As a further solution of the present invention: the inner ends of the two columnar sliding rods extend to the inner sides of the two connecting blocks and are fixedly connected to the limiting blocks, and the outer walls of the two columnar sliding rods are provided with springs on one side outside the two connecting blocks.

[0017] As a further solution of the present invention: the locking screw includes a screw extension rod, and guide grooves are respectively opened on the front and rear sides of the outer wall of the screw extension rod. The outer wall of the screw extension rod is slidably connected to the inner wall of the inner clamping tube, and the inner walls of the two guide grooves opened on the outer wall of the screw extension rod are respectively slidably connected to the outer walls of the two guide rods.

[0018] As a further solution of the present invention: a plurality of limiting grooves are provided on the top and bottom of the outer wall of the screw extension rod, wherein the inner walls of two of the limiting grooves are movably connected to the outer walls of the two limiting blocks respectively, and the left end of the screw extension rod is fixedly connected to the screw body.

[0019] The beneficial effects of the present invention are:

[0020] 1. The present invention realizes an efficient and stable connection between the handwheel and the locking screw by providing a handwheel and a locking screw. This structure not only improves the locking stability of the equipment, but also greatly simplifies the operation process, allowing the user to easily and quickly complete the adjustment and locking of the handwheel. In addition, the position of the grip wheel can be adjusted by moving the transmission shaft, so that the grip wheel can be in a more comfortable operating position, enhancing the convenience of use and humanized design. The movement adjustment of the grip wheel and the rotation of the screw are independent of each other, but closely coordinated, ensuring the smoothness and accuracy of the entire adjustment process. Such a design not only improves the operating efficiency, but also greatly enhances the user experience, allowing the operator to more easily complete the precise adjustment and locking of the handwheel and the locking screw. The design of the handwheel adjustment structure fully considers practicality and convenience. Specifically, when assembling the handwheel and the locking screw, the operator needs to pull the screw to slide and adjust it to set the length. The two limit blocks are clamped into the limit groove under the action of the spring to accurately define the position of the screw. Use a screwdriver to turn the screw, and the drive shaft moves to push the grip wheel to the appropriate position. After the grip wheel is fixed, the operator can easily turn the grip wheel. The rotation of the screw drives the nut rod to move, and the combination rod expands or contracts. When the combination rod contracts, the semicircular splint slides to the outer wall of the screw extension rod and fits tightly. Continue to turn the screw until the splint completely clamps the screw, the limit block is locked, and the screw is stably fixed. Finally, the operator can slide the handwheel along the guide rod to the desired position, through the cooperation of the splint and the screw and the sliding guidance of the guide rod in the guide groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the main three-dimensional structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the three-dimensional structure of the hand wheel and the locking screw of the present invention;

[0023] Figure 3 This is a schematic diagram of the three-dimensional separation structure of the hand wheel and the locking screw of the present invention;

[0024] Figure 4 This is a schematic diagram of the three-dimensional separation structure of the hand wheel of the present invention;

[0025] Figure 5 This is a schematic diagram of the three-dimensional structure of the handwheel body of the present invention;

[0026] Figure 6 This is a schematic diagram of the three-dimensional right-side structure of the handwheel body of the present invention;

[0027] Figure 7 This is a schematic diagram of the three-dimensional structure of the main body of the hand wheel of the present invention;

[0028] Figure 8 This is a schematic diagram of the three-dimensional structure of the clamping sleeve of the present invention;

[0029] Figure 9 It is a schematic diagram of the three-dimensional structure of the locking screw of the present invention.

[0030] In the figure: 1. guide rod; 2. handwheel; 21. handwheel body; 211. grip wheel connecting plate; 212. connecting rod; 213. screw rod connecting plate; 214. screw; 215. screw rod shaft; 216. cylindrical rotating rod; 217. grip wheel; 218. transmission shaft; 219. position control rotating rod; 2110. nut rod; 2111. rotating rod; 2112. expansion and contraction combination rod; 2113. semicircular splint; 22. clamping sleeve; 221. clamping sleeve shell; 222. inner clamping tube; 223. guide rod; 224. connecting block; 225. cylindrical slide rod; 226. limit block; 227. spring; 3. locking screw; 31. screw extension rod; 32. screw body; 33. guide groove; 34. limit groove. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] like Figure 1-2 As shown, the present invention provides a handwheel adjustment structure for locking and stabilizing a handwheel, comprising a guide rod 1, a handwheel 2 being provided on the inner wall of the guide rod 1, and a locking screw 3 being movably connected to the inner wall of the handwheel 2.

[0033] like Figure 3-9As shown, the handwheel 2 includes a handwheel body 21, a clamping sleeve 22 is fixedly connected to the left side of the handwheel body 21, and the handwheel body 21 includes a gripping wheel connecting disk 211. Both sides of the middle of the right side of the gripping wheel connecting disk 211 are fixedly connected with connecting rods 212, and the right sides of the inner sides of the two connecting rods 212 are fixedly connected with a screw connecting disk 213. The inner wall of the screw connecting disk 213 is rotatably connected with a screw rod 214, and the left end of the screw rod 214 extends to the left side of the gripping wheel connecting disk 211. The right side of the outer wall of the screw rod 214 is threadedly connected to a transmission shaft 218, and the right end of the screw rod 214 is fixedly connected to a screw shaft 215. The outer wall of the gripping wheel connecting disk 211 is rotatably connected to a cylindrical rotating rod 216 in a circular array, and multiple cylindrical rotating rods 216 are away from one end of the gripping wheel connecting disk 211. The outer wall of the transmission shaft 218 is fixedly connected to a position control rotating rod 219 in an annular array. The multiple position control rotating rods 219 are all rotatably connected to the inner side of the grip wheel 217 on the side away from the transmission shaft 218. The screw rod 214 is threadedly connected to a nut rod 2110 on the outer wall on the left side of the grip wheel connecting disk 211. The inner wall of the left side of the nut rod 2110 is rotatably connected to two rotating rods 2111 with opposite inclinations. The two rotating rods 2111 are rotatably connected to the expansion and contraction combination rod 2112 on the side away from the nut rod 2110. The two expansion and contraction combination rods 2112 are fixedly connected to the expansion and contraction combination rod 2112 on the side away from the rotation rod 2111. The clamping sleeve 22 includes a clamping sleeve shell 221. The clamping sleeve shell 221 The inner wall of the inner clamping tube 222 is fixedly connected to the inner clamping tube 222, the right side of the clamping sleeve shell 221 is fixedly connected to the left side of the grip wheel connecting plate 211, the top and bottom of the inner wall of the inner clamping tube 222 are respectively movably connected to the outer sides of the two semicircular splints 2113, the front and rear sides of the inner wall of the inner clamping tube 222 are respectively fixedly connected to the guide rod 223, the top and bottom of the inner wall of the inner clamping tube 222 are respectively movably connected to the outer sides of the two semicircular splints 2113, the front and rear sides of the inner wall of the inner clamping tube 222 are respectively fixedly connected to the guide rod 223, the top and bottom of the left side of the inner clamping tube 222 are respectively fixedly connected to the connecting block 224, the inner walls of the two connecting blocks 224 are both slidably connected to the columnar sliding rod 225, and the inner ends of the two columnar sliding rods 225 extend to the two The inner side of the connecting block 224 is fixedly connected to the limit block 226. The outer walls of the two columnar sliding rods 225 are each sleeved with a spring 227 on one side of the outer side of the two connecting blocks 224. The locking screw 3 includes a screw extension rod 31. The front and rear sides of the outer wall of the screw extension rod 31 are respectively provided with guide grooves 33. The outer wall of the screw extension rod 31 is slidably connected to the inner wall of the inner clamping tube 222. The inner walls of the two guide grooves 33 provided on the outer wall of the screw extension rod 31 are respectively slidably connected to the outer walls of the two guide rods 223. A plurality of limit grooves 34 are provided on the top and bottom of the outer wall of the screw extension rod 31, wherein the inner walls of the two limit grooves 34 are respectively movably connected to the outer walls of the two limit blocks 226. The left end of the screw extension rod 31 is fixedly connected to the screw body 32.

[0034] When the hand wheel 2 and the locking screw 3 are assembled and inserted into the guide rod 1, the operator first needs to pull the locking screw 3 to make it slide and adjust on the inner wall of the inner clamping tube 222 to adjust the length of the locking screw 3. In this process, the two limit blocks 226 are respectively engaged with the inner walls of the two limit grooves 34 under the elastic force of the two springs 227, thereby accurately limiting the position of the locking screw 3. Subsequently, the operator needs to use a screwdriver or other tool to rotate the screw rod 214. When the screw rod 214 rotates, it drives the transmission shaft 218 to move left and right. The movement of the transmission shaft 218 pushes the grip wheel 217 to move through the position control rotating rod 219, so that the grip wheel 217 is adjusted to a position suitable for the operator to hold the grip wheel 217 and rotate it. When the transmission shaft 218 no longer moves, the grip wheel 217 is fixed in a position convenient for operation, and the operator can easily turn the grip wheel 217.

[0035] At the same time, the rotation of the screw rod 214 will engage the nut rod 2110 and move it, and then drive the expansion and contraction combination rod 2112 to expand or contract through the two rotating rods 2111. When the expansion and contraction combination rod 2112 contracts, it will drive the semicircular splint 2113 to slide on the inner wall of the inner clamping tube 222. The two semicircular splints 2113 contract on the inner wall of the inner clamping tube 222, and finally make the two semicircular splints 2113 fit tightly to the outer wall of the screw extension rod 31. Then, the operator can continue to rotate the screw rod 214 until the two semicircular splints 2113 completely clamp the outer wall of the screw extension rod 31. At this time, due to the clamping action of the two semicircular splints 2113 With the use of the limit block 226 and the locking of the limit groove 34, the locking screw 3 is stably fixed on the handwheel 2. Then, the operator can slide the entire combination of the handwheel 2 and the locking screw 3 along the guide rod 1 to the desired position. Through the close fit between the semicircular splint 2113 and the screw extension rod 31, and the sliding guidance of the guide rod 223 in the guide groove 33, the stable sliding and precise positioning of the handwheel 2 and the locking screw 3 on the guide rod 1 are ensured. When the predetermined position is reached, the design of the entire handwheel adjustment structure is very clever, and the operation process is simple and easy, which realizes the fast and stable connection and adjustment of the handwheel and the locking screw, thereby greatly improving the locking stability and ease of use of the equipment.

[0036] The working principle of the present invention is as follows: in the process of assembling the hand wheel 2 and the locking screw 3 and inserting the guide rod 1, the operator first needs to pull the locking screw 3 to make it slide and adjust on the inner wall of the inner clamping tube 222 to adjust the length of the locking screw 3. In this process, the two limit blocks 226 are respectively engaged with the inner walls of the two limit grooves 34 under the elastic force of the two springs 227, thereby accurately limiting the position of the locking screw 3. Subsequently, the operator needs to use a screwdriver or other tool to rotate the screw rod 214. When the screw rod 214 rotates, it drives the transmission shaft 218 to move left and right. The movement of the transmission shaft 218 pushes the grip wheel 217 to move through the position control rotating rod 219, so that the grip wheel 217 is adjusted to a position suitable for the operator to hold the grip wheel 217 and rotate. When the transmission shaft 218 no longer moves, the grip wheel 217 is fixed in a position convenient for operation, and the operator can easily rotate the grip wheel 217. At the same time, the rotation of the screw rod 214 engages the nut rod 21 10 and move it, and then drive the expansion and contraction combination rod 2112 to expand or contract through the two rotating rods 2111. When the expansion and contraction combination rod 2112 contracts, it drives the semicircular splint 2113 to slide on the inner wall of the inner clamping tube 222. The two semicircular splints 2113 contract on the inner wall of the inner clamping tube 222, and finally make the two semicircular splints 2113 fit tightly to the outer wall of the screw extension rod 31. Then, the operator can continue to rotate the screw rod 214 until the two semicircular splints 2113 are tightly fitted to the outer wall of the screw extension rod 31. The circular splint 2113 completely clamps the outer wall of the screw extension rod 31. At this time, due to the clamping effect of the two semicircular splints 2113 and the locking of the limit block 226 in the limit groove 34, the locking screw 3 is stably fixed on the handwheel 2. Then, the operator can slide the entire combination of the handwheel 2 and the locking screw 3 along the guide rod 1 to the desired position, through the close fit between the semicircular splint 2113 and the screw extension rod 31, and the sliding guidance of the guide rod 223 in the guide groove 33.

[0037] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A handwheel adjustment structure for locking and stabilizing a handwheel, characterized by: It comprises a guide rod (1), the inner wall of the guide rod (1) is provided with a hand wheel (2), and the inner wall of the hand wheel (2) is movably connected with a locking screw (3); The handwheel (2) comprises a handwheel body (21), and a clamping sleeve (22) is fixedly connected to the left side of the handwheel body (21); The handwheel body (21) comprises a grip wheel connecting disc (211), both sides of the middle right side of the grip wheel connecting disc (211) are fixedly connected to connecting rods (212), the right sides of the inner sides of the two connecting rods (212) are fixedly connected to a screw rod connecting disc (213), the inner wall of the screw rod connecting disc (213) is rotatably connected to a screw rod (214), and the left end of the screw rod (214) extends to the left side of the grip wheel connecting disc (211).

2. The handwheel adjustment structure for locking and stabilizing the handwheel according to claim 1, characterized in that: The right side of the outer wall of the screw rod (214) is threadedly connected to a transmission shaft (218), the right end of the screw rod (214) is fixedly connected to a screw rod rotating shaft (215), the outer wall of the grip wheel connecting disk (211) is rotatably connected to a cylindrical rotating rod (216) in an annular array, and the ends of the plurality of cylindrical rotating rods (216) away from the grip wheel connecting disk (211) are rotatably connected to a grip wheel (217).

3. The handwheel adjustment structure for locking and stabilizing the handwheel according to claim 2, characterized in that: The outer wall of the transmission shaft (218) is fixedly connected to a position control rotating rod (219) in an annular array. The side of the plurality of position control rotating rods (219) away from the transmission shaft (218) is rotatably connected to the inner side of the grip wheel (217). The screw rod (214) is threadedly connected to a nut rod (2110) on the outer wall on the left side of the grip wheel connecting plate (211).

4. The handwheel adjustment structure for locking and stabilizing the handwheel according to claim 3, characterized in that: The left inner wall of the nut rod (2110) is rotatably connected to two rotating rods (2111) with opposite inclinations, and the sides of the two rotating rods (2111) away from the nut rod (2110) are rotatably connected to the expansion and contraction combination rod (2112), and the sides of the two expansion and contraction combination rods (2112) away from the rotating rod (2111) are fixedly connected to the expansion and contraction combination rod (2112).

5. The handwheel adjustment structure for locking and stabilizing a handwheel according to claim 1, characterized in that: The clamping sleeve (22) includes a clamping sleeve shell (221), the inner wall of the clamping sleeve shell (221) is fixedly connected to an inner clamping tube (222), the right side of the clamping sleeve shell (221) is fixedly connected to the left side of the grip wheel connecting plate (211), the top and bottom of the inner wall of the inner clamping tube (222) are movably connected to the outer sides of two semicircular clamping plates (2113), and the front and rear sides of the inner wall of the inner clamping tube (222) are fixedly connected to guide rods (223).

6. The handwheel adjustment structure for locking and stabilizing the handwheel according to claim 5, characterized in that: The top and bottom of the inner wall of the inner clamping tube (222) are movably connected to the outer sides of the two semicircular clamping plates (2113), and the front and rear sides of the inner wall of the inner clamping tube (222) are fixedly connected with guide rods (223).

7. The handwheel adjustment structure for locking and stabilizing a handwheel according to claim 5, characterized in that: The top and bottom of the left side of the inner clamping tube (222) are respectively fixedly connected with a connecting block (224), and the inner walls of the two connecting blocks (224) are both slidably connected with a columnar sliding rod (225).

8. The handwheel adjustment structure for locking and stabilizing a handwheel according to claim 7, characterized in that: The inner ends of the two columnar slide bars (225) extend to the inner sides of the two connecting blocks (224) and are fixedly connected to the limiting blocks (226). The outer walls of the two columnar slide bars (225) are sleeved with springs (227) on one side outside the two connecting blocks (224).

9. The handwheel adjustment structure for locking and stabilizing a handwheel according to claim 1, characterized in that: The locking screw (3) includes a screw extension rod (31), and guide grooves (33) are respectively provided on the front and rear sides of the outer wall of the screw extension rod (31). The outer wall of the screw extension rod (31) is slidably connected to the inner wall of the inner clamping tube (222), and the inner walls of the two guide grooves (33) provided on the outer wall of the screw extension rod (31) are respectively slidably connected to the outer walls of the two guide rods (223).

10. The handwheel adjustment structure for locking and stabilizing the handwheel according to claim 9, characterized in that: The top and bottom of the outer wall of the screw extension rod (31) are both provided with a plurality of limiting grooves (34), wherein the inner walls of two of the limiting grooves (34) are movably connected to the outer walls of two limiting blocks (226), respectively, and the left end of the screw extension rod (31) is fixedly connected to the screw body (32).

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