Anti-skid connecting shaft seat

Abstract

The utility model discloses an anti -skidding connecting axle seat relates to axle seat technical field. The utility model discloses a lower axle seat, the top of lower axle seat installs the upper axle seat, installs the bearing between lower axle seat and upper axle seat, still includes: antiskid mechanism, the antiskid mechanism sets up inside lower axle seat. The utility model discloses an antiskid mechanism, specifically is to the bearing when anti -skidding fixed, the operator rotates the worm, and the worm drives the worm wheel rotation, and the worm wheel drives the threaded rod of inner wall screw connection along the sleeve inner wall and slides, and further drives the transmission plate along the guide rod and slides, finally through the transmission plate and drive the clamping block and slide into the clamping groove of bearing outer wall, and the tapered clamping block and clamping groove and recess, boss adaptation inlay, thereby realize the effective antiskid of bearing, prevent bearing and lower axle seat, upper axle seat inner wall and slide, guarantee bearing operation stability, provide reliable support for equipment normal transmission, improve equipment operation precision and stability.

Description

Technical Field

[0001] This utility model belongs to the field of bearing technology, and in particular relates to an anti-slip connecting bearing. Background Technology

[0002] In modern mechanical equipment, bearing seats are widely used as key components supporting shafts and bearings. There are various types of bearing seats to adapt to different working conditions. However, in actual use, some bearing seats may slip, which will affect the transmission effect of mechanical equipment, reduce transmission accuracy, and make it difficult to meet the requirements of precision operation. Long-term slippage may also cause accelerated wear of related components, shorten the service life of equipment, increase maintenance costs and downtime, and thus affect production efficiency and cause economic losses to enterprises. Utility Model Content

[0003] The purpose of this utility model is to provide an anti-slip connecting shaft seat. By setting an anti-slip mechanism, specifically when the bearing is fixed in an anti-slip manner, the operator rotates the worm gear, which drives the worm wheel to rotate. The worm wheel then drives the threaded rod connected to the inner wall to slide up along the inner wall of the sleeve, thereby driving the transmission plate to slide along the guide rod. Finally, the transmission plate drives the locking block to slide into the locking groove on the outer wall of the bearing. The conical locking block fits and engages with the locking groove, recess, and protrusion, thereby achieving effective anti-slip of the bearing, preventing the bearing from sliding against the inner wall of the lower and upper shaft seats, ensuring stable bearing operation, providing reliable support for normal equipment transmission, improving the operating accuracy and stability of the equipment, and solving the problem of some shaft seats potentially sliding in actual use.

[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model relates to an anti-slip connecting shaft seat, comprising a lower shaft seat, an upper shaft seat mounted on the top of the lower shaft seat, a bearing installed between the lower and upper shaft seats, and an anti-slip mechanism disposed inside the lower shaft seat. The anti-slip mechanism is used to prevent the bearing from sliding against the inner walls of the lower and upper shaft seats. The anti-slip mechanism includes a locking block, and a locking groove is formed on the outer wall of the bearing. The locking block is slidably connected to the inner wall of the locking groove. A disassembly mechanism is provided in two sets, symmetrically arranged on the top of the lower shaft seat. The disassembly mechanism is used for quick disassembly and installation of the lower and upper shaft seats. The disassembly mechanism includes a connecting groove formed on the top of the lower shaft seat, and a connecting block is fixedly connected to the bottom of the upper shaft seat. The bottom of the connecting block extends into the interior of the connecting groove and is slidably connected to the connecting groove. Both the connecting groove and the connecting block are designed to be rectangular and are compatible with each other.

[0005] Furthermore, the anti-slip mechanism also includes a drive assembly 1, which is disposed inside the lower shaft seat and is used to provide power for the locking block to enter and exit the locking slot; and a transmission assembly, which is disposed inside the lower shaft seat and is used to transmit the power provided by the drive assembly 1 to the locking block; the transmission assembly transmits the power provided by the drive assembly 1 to the locking block, so that the locking block enters the inside of the locking slot to prevent the bearing from slipping or exits the locking slot to release the anti-slip effect on the bearing.

[0006] Furthermore, the disassembly mechanism also includes a locking assembly, which is disposed on the lower shaft seat and is used to lock and fix the connecting block; and a second driving assembly, which is disposed on the lower shaft seat and is used to provide power for the locking assembly to lock and fix the connecting block.

[0007] Furthermore, the drive assembly includes a worm gear passing through the front side of the lower shaft seat. The worm gear is rotatably connected to the lower shaft seat. A sleeve is fixedly connected to the inner bottom wall of the lower shaft seat. A worm wheel is rotatably connected to the top of the sleeve. A threaded rod is threadedly connected to the inner wall of the worm wheel. A limit block is fixedly connected to the bottom of the worm wheel. A limit groove is formed at the top of the sleeve. The bottom of the limit block extends into the interior of the limit groove and is slidably connected to the limit groove. Both the limit groove and the limit block are designed to be annular and have a T-shaped cross-section.

[0008] Furthermore, the transmission assembly includes two guide rods fixedly connected to the inner wall of the lower bearing seat. A transmission plate is slidably connected to the outer wall of the two guide rods. The bottom of the transmission plate is fixedly connected to the top of the threaded rod. The side of the transmission plate away from the threaded rod is fixedly connected to a locking block. The side of the transmission plate away from the threaded rod is designed to be arc-shaped and fits against the outer wall of the bearing. The locking block is fixedly connected to the transmission plate by welding. The two guide rods are symmetrically arranged on the inner wall of the lower bearing seat to guide and limit the movement of the transmission plate. At the same time, a gasket is fixedly connected to the outer wall of both guide rods to limit the movable position of the transmission plate.

[0009] Furthermore, the locking assembly includes a sliding groove formed on the front side of the lower shaft seat, a connecting piece slidably connected to the inner wall of the sliding groove, a locking groove formed on the front side of the connecting block, a locking block fixedly connected to the rear side of the connecting piece, the rear side of the locking block extending into the interior of the locking groove and slidably connected to the locking groove, the connecting piece being adapted to the inner wall of the sliding groove, and the locking block being fixedly connected to the connecting piece by welding; both the locking groove and the locking block are designed in a cross shape, and the locking groove and the locking block are adapted to each other.

[0010] Furthermore, the second drive assembly includes a bolt passing through the front side of the lower shaft seat. The bolt is threaded to the lower shaft seat, and the rear end of the bolt extends into the interior of the slide groove and is rotatably connected to the connecting piece. A spring is sleeved on the outer wall of the slide groove. A knob is fixedly connected to the front end of the bolt by welding. An arc-shaped groove is provided on the outer wall of the knob, which facilitates operation by the operator. One end of the spring is fixedly connected to the front inner wall of the connecting groove, and the other end is fixedly connected to the connecting piece.

[0011] This utility model has the following beneficial effects: 1. This utility model, by setting up an anti-slip mechanism, specifically for the anti-slip fixing of the bearing, involves the operator rotating the worm gear, which drives the worm wheel to rotate. The worm wheel then drives the threaded rod connected to the inner wall to slide upward along the inner wall of the sleeve, thereby driving the transmission plate to slide along the guide rod. Finally, the transmission plate drives the locking block to slide into the locking groove on the outer wall of the bearing. The conical locking block fits and engages with the locking groove, recess, and protrusion, thereby achieving effective anti-slip of the bearing, preventing the bearing from sliding against the inner wall of the lower and upper shaft seats, ensuring stable bearing operation, providing reliable support for the normal transmission of the equipment, and improving the operating accuracy and stability of the equipment.

[0012] 2. This utility model, through the setting of a disassembly mechanism, specifically, when installing the upper and lower shaft seats, aligns the connecting block at the bottom of the upper shaft seat with the connecting groove at the top of the lower shaft seat and slides it in. Rotating the bolt causes the bolt to move the connecting piece along the sliding groove, and the connecting piece causes the locking block to slide into the locking groove of the connecting block. The cross-shaped locking block and the locking groove are fitted and locked together, and the spring is always compressed to ensure a tight lock, thus completing the installation of the lower and upper shaft seats. Rotating the second knob in the opposite direction causes the locking block to disengage from the locking groove, and the upper shaft seat can be lifted to complete the disassembly. The whole system realizes the quick disassembly and installation of the lower and upper shaft seats, which greatly shortens the time spent on bearing maintenance and replacement, reduces equipment downtime losses, requires no professional tools or high-skill operation, and reduces maintenance costs and safety risks.

[0013] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the exploded structure of this utility model; Figure 3This is a front cross-sectional view of the present invention. Figure 4 This is a schematic diagram of the card slot structure of this utility model; Figure 5 This is a schematic diagram of the structure of the sleeve of this utility model; Figure 6 This is a schematic diagram of the slide groove of this utility model; Figure 7 This is a schematic diagram of the locking block of this utility model.

[0016] The attached diagram lists the components represented by each number as follows: 1. Lower shaft seat; 11. Upper shaft seat; 111. Bearing; 2. Anti-slip mechanism; 21. Locking block; 211. Locking groove; 22. Drive assembly one; 221. Worm gear; 222. Sleeve; 223. Worm wheel; 224. Threaded rod; 23. Transmission assembly; 231. Guide rod; 232. Transmission plate; 3. Disassembly mechanism; 31. Connecting groove; 311. Connecting block; 32. Locking assembly; 321. Slide groove; 322. Connecting piece; 323. Locking groove; 324. Locking block; 33. Drive assembly two; 331. Bolt; 332. Spring. Detailed Implementation

[0017] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-7As shown, this utility model is an anti-slip connecting shaft seat, including a lower shaft seat 1, an upper shaft seat 11 mounted on the top of the lower shaft seat 1, and a bearing 111 installed between the lower shaft seat 1 and the upper shaft seat 11. It also includes: an anti-slip mechanism 2, disposed inside the lower shaft seat 1, used to prevent the bearing 111 from sliding against the inner walls of the lower shaft seat 1 and the upper shaft seat 11; the anti-slip mechanism 2 includes a locking block 21, and a locking groove 211 is formed on the outer wall of the bearing 111, with the locking block 21 slidably connected to the inner wall of the locking groove 211; and a disassembly mechanism 3, of which two sets are symmetrically arranged on the top of the lower shaft seat 1, used for quick disassembly and installation of the lower shaft seat 1 and the upper shaft seat 11. The disassembly mechanism 3 includes a connecting groove 31 formed on the top of the lower shaft seat 1, and a connecting block 311 fixedly connected to the bottom of the upper shaft seat 11, the bottom of the connecting block 311 extending into the interior of the connecting groove 31 and slidably connected to the connecting groove 31. The sliding mechanism 2 also includes a drive assembly 22, which is located inside the lower shaft seat 1 and provides power for the locking block 21 to enter and exit the slot 211; a transmission assembly 23, which is located inside the lower shaft seat 1 and transmits the power provided by the drive assembly 22 to the locking block 21, so that the locking block 21 enters the slot 211 to prevent the bearing 111 from slipping or exits the slot 211 to release the anti-slip effect on the bearing 111; the disassembly mechanism 3 also includes a locking assembly 32, which is located on the lower shaft seat 1 and is used to lock and fix the connecting block 311; and a drive assembly 33, which is located on the lower shaft seat 1 and provides power for the locking assembly 32 to lock and fix the connecting block 311.

[0019] Drive assembly 22 includes a worm gear 221 extending through the front side of the lower shaft seat 1. The worm gear 221 is rotatably connected to the lower shaft seat 1. A sleeve 222 is fixedly connected to the inner bottom wall of the lower shaft seat 1. A worm wheel 223 is rotatably connected to the top of the sleeve 222. A threaded rod 224 is threadedly connected to the inner wall of the worm wheel 223. A knob 1 is fixedly connected to the rear end of the worm gear 221. The outer wall of the knob 1 is designed with an arc-shaped groove to facilitate operation. Transmission assembly 23 includes two guide rods 231 fixedly connected to the inner wall of the lower shaft seat 1. A transmission plate 232 is slidably connected to the outer wall of the two guide rods 231. The bottom of the transmission plate 232 is fixedly connected to the top of the threaded rod 224. The side of the transmission plate 232 away from the threaded rod 224 is fixedly connected to a locking block 21. When the worm gear 221 rotates, it drives the worm wheel 223 to rotate. The side of the transmission plate 232 away from the threaded rod 224 is designed with an arc shape and fits against the outer wall of the bearing 111. The locking block 21 is welded... The worm gear 223 is fixedly connected to the transmission plate 232. When the worm gear 223 rotates, it drives the threaded rod 224 to move up and down along the inner wall of the sleeve 222, thereby driving the locking block 21 to move through the transmission plate 232. By setting the anti-slip mechanism 2, specifically when the bearing 111 is fixed to prevent slippage, the operator rotates the worm gear 221, which drives the worm gear 223 to rotate. The worm gear 223 then drives the threaded rod 224, which is connected to the inner wall, to slide up along the inner wall of the sleeve 222, thereby driving the transmission plate 232 to slide along the guide rod 231. Finally, the transmission plate 232 drives the locking block 21 to slide into the slot 211 on the outer wall of the bearing 111. The conical locking block 21 fits into the slot 211 and the groove and protrusion, thereby achieving effective anti-slip of the bearing 111, preventing the bearing 111 from sliding against the inner wall of the lower shaft seat 1 and the upper shaft seat 11, ensuring the stable operation of the bearing 111, providing reliable support for the normal transmission of the equipment, and improving the operating accuracy and stability of the equipment.

[0020] The locking assembly 32 includes a slide groove 321 formed on the front side of the lower shaft seat 1. A connecting piece 322 is slidably connected to the inner wall of the slide groove 321. A locking groove 323 is formed on the front side of the connecting block 311. A locking block 324 is fixedly connected to the rear side of the connecting piece 322. The rear side of the locking block 324 extends into the interior of the locking groove 323 and is slidably connected to the locking groove 323. The connecting piece 322 is adapted to the inner wall of the slide groove 321. The locking block 324 is fixedly connected to the connecting piece 322 by welding. The drive assembly 33 includes a bolt 331 passing through the front side of the lower shaft seat 1. The bolt 331 is threadedly connected to the lower shaft seat 1. The rear end of the bolt 331 extends into the interior of the slide groove 321 and is rotatably connected to the connecting piece 322. A spring 332 is sleeved on the outer wall of the slide groove 321. A knob 2 is fixedly connected to the front end of the bolt 331 by welding. The outer wall of the knob 2 has an arc-shaped groove to facilitate operation by the operator. When the bolt 331 rotates, it drives the connecting piece 322 to move. Then, the connecting piece 322 drives the locking block 324 to insert into or disengage from the locking groove 323; by setting the disassembly mechanism 3, specifically when installing the upper shaft seat 11 and the lower shaft seat 1, the connecting block 311 at the bottom of the upper shaft seat 11 is aligned with the connecting groove 31 at the top of the lower shaft seat 1 and slid in. The bolt 331 is rotated, and the bolt 331 drives the connecting piece 322 to move along the slide groove 321. The connecting piece 322 drives the locking block 324 to slide into the locking groove 323 of the connecting block 311, thus forming a cross-shaped lock. The stop block 324 and the locking groove 323 are fitted and locked together. The spring 332 is always compressed to ensure a tight lock, thus completing the installation of the lower shaft seat 1 and the upper shaft seat 11. Rotating the knob in the opposite direction causes the locking block 324 to disengage from the locking groove 323, allowing the upper shaft seat 11 to be lifted and disassembled. This allows for quick disassembly and installation of the lower shaft seat 1 and the upper shaft seat 11, significantly reducing the time required for the maintenance and replacement of the bearing 111, reducing equipment downtime losses, and eliminating the need for specialized tools and highly skilled operations, thereby reducing maintenance costs and safety risks.

[0021] A specific application of this embodiment is as follows: When it is necessary to fix the bearing 111 to prevent slippage, the operator first rotates the knob at the rear end of the worm 221. The worm 221 will rotate accordingly and drive the worm wheel 223 meshing with it to rotate. Since the annular T-shaped limiting block at the bottom of the worm wheel 223 is embedded in the annular T-shaped limiting groove at the top of the sleeve 222, the worm wheel 223 can only rotate around the axis of the sleeve 222 and cannot move up and down. Moreover, the inner wall of the worm wheel 223 is threadedly connected to the threaded rod 224, and the bottom end of the threaded rod 224 is slidably adapted to the inner wall of the sleeve 222. Therefore, when the worm wheel 223 rotates, it will drive the threaded rod 224 to slide upward along the inner wall of the sleeve 222. When the threaded rod 224 moves upward, it will drive the transmission plate 232 fixedly connected to it to slide along the two symmetrical guide rods 231. The guide rods 231 and the transmission plate 232 The movement of the transmission plate 232 serves as a guide and limiter, preventing the transmission plate 232 from shifting. As the transmission plate 232 moves upward, the locking block 21 fixed on the side away from the threaded rod 224 also moves upward. Eventually, the locking block 21 slides into the slot 211 opened on the outer wall of the bearing 111. Since both the locking block 21 and the slot 211 are designed to be conical, and the grooves on the outer wall of the locking block 21 and the protrusions on the inner wall of the slot 211 are adapted to slide against each other, the two form a tight fitting structure, thereby preventing the bearing 111 from sliding relative to the inner walls of the lower shaft seat 1 and the upper shaft seat 11, achieving an anti-slip effect. When it is necessary to release the anti-slip state, since the forward and reverse rotation working principle of the worm gear 221 is the same, the knob at the rear end of the worm gear 221 is rotated in the opposite direction to make the locking block 21 disengage from the slot 211, thereby releasing the anti-slip restriction on the bearing 111.

[0022] When it is necessary to install and fix the upper bearing seat 11 and the lower bearing seat 1, first place the bearing 111 on the top of the lower bearing seat 1, then align the connecting block 311 fixed at the bottom of the upper bearing seat 11 with the connecting groove 31 opened at the top of the lower bearing seat 1 and slide it into the connecting groove 31 to complete the initial docking of the upper bearing seat 11 and the lower bearing seat 1. Then, turn the knob two at the front end of the bolt 331. Since the bolt 331 is threadedly connected to the lower bearing seat 1, the bolt 331 will move backward along the lower bearing seat 1. At the same time, when the bolt 331 moves, it will push the connecting piece 322 to slide backward along the slide groove 321. When the connecting piece 322 slides backward, it will drive the locking block 324 fixed at its rear to move backward in sync. Finally, the locking block 324 will slide into the locking groove 323 opened at the front of the connecting block 311. Since the locking block 324 and the locking groove 323 are both cross-shaped and compatible, The two form a stable locking structure, thereby fixing the connecting block 311 in the connecting groove 31, realizing the quick installation and fixation of the upper shaft seat 11 and the lower shaft seat 1. When it is necessary to disassemble the upper shaft seat 11, the locking block 324 is disengaged from the locking groove 323 by rotating the bolt 331 in the opposite direction, thus completing the quick disassembly of the upper shaft seat 11 and the lower shaft seat 1. This greatly shortens the time spent on bearing maintenance and replacement, reduces equipment downtime losses, and ensures continuous production. At the same time, no special tools or high-skill operation are required, reducing maintenance costs and safety risks. In addition, the spring 332 is always in a compressed state regardless of the position of the connecting piece 322. That is, the spring 332 is in a compressed state in the initial state, so it can continuously apply a backward thrust to the connecting piece, ensuring that the locking block is tightly fitted in the locking groove and preventing the locking block from loosening due to equipment vibration.

[0023] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0024] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A non-slip connecting shaft seat, comprising a lower shaft seat (1), an upper shaft seat (11) mounted on the top of the lower shaft seat (1), and a bearing (111) installed between the lower shaft seat (1) and the upper shaft seat (11), characterized in that, Also includes: An anti-slip mechanism (2) is provided inside the lower bearing seat (1). The anti-slip mechanism (2) is used to prevent the bearing (111) from sliding against the inner walls of the lower bearing seat (1) and the upper bearing seat (11). The anti-slip mechanism (2) includes a locking block (21). A locking groove (211) is provided on the outer wall of the bearing (111). The locking block (21) is slidably connected to the inner wall of the locking groove (211). The disassembly mechanism (3) is provided in two sets, and the two sets of disassembly mechanisms (3) are symmetrically arranged on the top of the lower shaft seat (1). The disassembly mechanism (3) is used to quickly disassemble and install the lower shaft seat (1) and the upper shaft seat (11). The disassembly mechanism (3) includes a connecting groove (31) opened on the top of the lower shaft seat (1). A connecting block (311) is fixedly connected to the bottom of the upper shaft seat (11). The bottom of the connecting block (311) extends into the interior of the connecting groove (31) and slides in connection with the connecting groove (31). Among them, the card block (21) and the card slot (211) are adapted to each other. Both are designed to be conical. The outer wall of the card block (21) is provided with several grooves, and the inner wall of the card slot (211) is fixedly connected with several protrusions. The protrusions are slidably connected to the corresponding grooves.

2. The anti-slip connecting shaft seat according to claim 1, characterized in that, The anti-slip mechanism (2) further includes a drive assembly (22), which is disposed inside the lower shaft seat (1). The drive assembly (22) provides power for the locking block (21) to enter and exit the locking slot (211); and The transmission assembly (23) is disposed inside the lower shaft seat (1) and is used to transmit the power provided by the drive assembly (22) to the locking block (21). The transmission component (23) transmits the power provided by the drive component (22) to the card block (21), so that the card block (21) enters the inside of the card slot (211) to prevent the bearing (111) from slipping or disengages from the card slot (211) to release the anti-slip effect on the bearing (111).

3. The anti-slip connecting shaft seat according to claim 2, characterized in that, The disassembly mechanism (3) further includes a locking assembly (32), which is disposed on the lower shaft seat (1) and is used to lock and fix the connecting block (311); and Drive component two (33) is disposed on the lower shaft seat (1) and is used to provide power for the locking component (32) to lock and fix the connecting block (311).

4. The anti-slip connecting shaft seat according to claim 2, characterized in that, The drive assembly (22) includes a worm (221) passing through the front side of the lower shaft seat (1). The worm (221) is rotatably connected to the lower shaft seat (1). A sleeve (222) is fixedly connected to the inner bottom wall of the lower shaft seat (1). A worm wheel (223) is rotatably connected to the top of the sleeve (222). A threaded rod (224) is threadedly connected to the inner wall of the worm wheel (223). The bottom end of the threaded rod (224) extends into the interior of the sleeve (222) and is slidably connected to the sleeve (222), and the threaded rod (224) is adapted to the inner wall of the sleeve (222).

5. The anti-slip connecting shaft seat according to claim 2, characterized in that, The transmission assembly (23) includes two guide rods (231) fixedly connected to the inner wall of the lower shaft seat (1), and a transmission plate (232) slidably connected to the outer wall of the two guide rods (231). The bottom of the transmission plate (232) is fixedly connected to the top of the threaded rod (224), and the side of the transmission plate (232) away from the threaded rod (224) is fixedly connected to the locking block (21). The transmission plate (232) is designed to be arc-shaped on the side away from the threaded rod (224) and fits against the outer wall of the bearing (111). The clamp (21) is fixedly connected to the transmission plate (232) by welding.

6. The anti-slip connecting shaft seat according to claim 3, characterized in that, The locking assembly (32) includes a slide groove (321) opened on the front side of the lower shaft seat (1), a connecting piece (322) is slidably connected to the inner wall of the slide groove (321), a locking groove (323) is opened on the front side of the connecting block (311), a locking block (324) is fixedly connected to the rear side of the connecting piece (322), and the rear side of the locking block (324) extends into the interior of the locking groove (323) and is slidably connected to the locking groove (323); The connecting piece (322) is adapted to the inner wall of the slide (321), and the locking block (324) is fixedly connected to the connecting piece (322) by welding.

7. The anti-slip connecting shaft seat according to claim 3, characterized in that, The second drive assembly (33) includes a bolt (331) passing through the front side of the lower shaft seat (1), the bolt (331) being threadedly connected to the lower shaft seat (1), the rear end of the bolt (331) extending into the interior of the slide groove (321) and being rotatably connected to the connecting piece (322), and a spring (332) being sleeved on the outer wall of the slide groove (321). Among them, the front end of the bolt (331) is fixedly connected to the knob two by welding. The outer wall of the knob two is provided with an arc-shaped groove, which makes it convenient for the operator to operate.

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