CN212315420U - Self-locking mechanism for lifter - Google Patents

Abstract

The utility model provides a self-locking mechanism for machine of lifting, including initiative activity flat head pole, driven activity flat head pole, the loose axle, the connecting axle, first U type slider, first mount pad, the second mount pad, second U type slider, lift linear slide rail, horizontal pearl, the elevating platform can be from locking-type anti-skidding lifter structure, can manual electroless operation lifter structure, adjustable anti-skidding lift holder structure and prevent sinking bottom sprag mount structure, initiative activity flat head pole and driven activity flat head pole between the junction pass through loose axle swing joint setting. The utility model discloses retaining ring, lifting screw, lifting nut, installation bushing seat, the setting of electroless gear reduction box and hand wheel is favorable to carrying out manual lifting operation under the electroless condition, rotates through handheld hand wheel for electroless gear reduction box drives lifting screw and lifts the action at installation bushing seat inside rotation, makes lifting nut drive the elevating platform at the lifting screw outer wall and lifts the action, in order to guarantee mechanism job stabilization nature.

Description

Self-locking mechanism for lifter

Technical Field

The utility model belongs to the technical field of self-locking mechanism, especially, relate to a self-locking mechanism for machine of lifting.

Background

The automobile lifter is automobile protecting equipment for automobile lifting in automobile maintenance industry. The lifting machine plays a crucial role in automobile maintenance, the lifting machine cannot be used for the whole automobile major repair or minor repair maintenance, and the quality of the product directly influence the personal safety of maintenance personnel. In maintenance enterprises of various scales, a lift is often provided in a comprehensive repair shop for repairing a plurality of vehicle models or a street shop (e.g., a tire shop) having a single operation range.

At present, lifting machines are various, but the support of a self-locking mechanism is not released.

But current self-locking mechanism still has the auto-lock effect poor, can't fix and wait to lift the easy landing of equipment, and the bottom sprag is insecure and can't lift under the electroless condition problem.

Therefore, the self-locking mechanism for the lifting machine of the utility model is very necessary.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a self-locking mechanism for machine of lifting to it is poor to have the auto-lock effect in current self-locking mechanism to solve, can't fix and treat the easy landing of equipment of lifting, and the problem that can't lift under the insecure and electroless condition of bottom sprag. The self-locking mechanism for the lifter comprises a driving movable flat head rod, a driven movable flat head rod, a movable shaft, a connecting shaft, a first U-shaped sliding block, a first mounting seat, a second U-shaped sliding block, a lifting linear sliding rail, a horizontal ball, a lifting platform, a self-locking anti-skidding lifting rod structure, an adjustable anti-skidding lifting clamping seat structure and an anti-sinking bottom supporting and fixing frame structure, wherein the connecting part between the driving movable flat head rod and the driven movable flat head rod is movably connected through the movable shaft; one end of the active movable flat head rod is connected with the lower end of the inside of the first U-shaped sliding block through a connecting shaft, and the other end of the active movable flat head rod is connected with the middle position of the inside of the first mounting seat through the connecting shaft; one end of the driven movable flat head rod is connected with the middle position inside the second mounting seat through a connecting shaft, and the other end of the driven movable flat head rod is connected with the lower end inside the second U-shaped sliding block through a connecting shaft; the first U-shaped sliding block and the second U-shaped sliding block are respectively connected to the left side and the right side of the lower part of the outer wall of the lifting linear sliding rail in a sliding and clamping manner; the horizontal beads are transversely embedded in the middle positions of the inner sides of the front part and the rear part of the lifting platform respectively; the self-locking anti-skidding lifting rod structure is connected with the anti-sinking bottom supporting and fixing frame structure; the lifting rod structure capable of being operated manually without electricity and the adjustable anti-skid lifting clamping seat structure are respectively connected with the lifting platform; the self-locking anti-skidding lifting rod structure comprises a rotary screw rod, a clip-shaped rack, a hand wheel, a speed reducing motor, a movable nut, a movable connecting rod and an opening clip-shaped sliding seat, wherein one transverse end of the rotary screw rod is connected with the middle position of the left wall in the clip-shaped rack through a bearing, and the other transverse end of the rotary screw rod is connected with the middle position of the right wall in the clip-shaped rack through a bearing; the hand wheel key is connected with the left end of the rotary screw rod; the speed reducing motor is connected to the right end of the rectangular frame through a bolt, and an output shaft of the speed reducing motor is connected with a right end coupler of the rotating screw rod; the movable nuts are respectively transversely and threadedly connected to the left side and the right side of the outer wall of the rotary screw; the opening clip-shaped sliding seats are respectively sleeved on the left side and the right side of the outer wall of the upper part of the clip-shaped rack in a sliding manner; one end of the movable connecting rod is in threaded connection with the lower end of the open-ended hollow square slide seat, and the other end of the movable connecting rod is in threaded connection with the upper end of the movable nut.

Preferably, the lifting rod structure capable of being operated manually without electricity comprises a check ring, a lifting screw rod, a lifting nut, a mounting lining seat, a non-electricity gear reduction box and a hand wheel, wherein the check ring is sleeved inside an annular groove formed in the outer wall of the upper end of the lifting screw rod; the lifting screw is longitudinally and threadedly connected inside the lifting nut; the lower part of the lifting screw rod in the longitudinal direction penetrates through the middle position in the mounting lining seat; the coupler at the longitudinal lower end of the lifting screw is connected with the upper end of an output shaft of the electroless gear reduction box; the outer wall key of the input shaft of the electroless gear reduction box is connected with the middle position inside the hand wheel.

Preferably, the adjustable anti-skid lifting clamping seat structure comprises a protection pad, a U-shaped clamping frame, an inverted U-shaped sliding seat, a clamping seat, a movable pull rod, a buffer spring and a pull handle, wherein the protection pad is transversely glued at the middle position of the bottom of the inner side of the U-shaped clamping frame; the inverted U-shaped sliding seats are respectively sleeved on the outer wall of the protective pad and are slidably clamped on the left side and the right side of the outer wall at the bottom of the U-shaped clamping frame; the longitudinal lower end of the clamping seat is connected with the middle position of the upper end of the inverted U-shaped sliding seat through a bolt; the movable pull rods are respectively and transversely inserted in through holes formed in the upper sides of the insides of the left end and the right end of the U-shaped clamping frame; the outer wall of the movable pull rod is sleeved with a buffer spring; one end of the movable pull rod is connected with the clamping seat in a threaded manner, and the other end of the movable pull rod is connected with the pull handle in a threaded manner.

Preferably, the anti-sinking bottom supporting and fixing frame structure comprises an anti-slip pad, an anti-sinking seat, a stabilizing support, an inserting rod, a pressing handle and a conical head, wherein the anti-slip pad is transversely glued on the lower surface of the anti-sinking seat; the anti-sinking seats are respectively connected to the left end and the right end of the stabilizing bracket through transverse bolts; the inserted bar is longitudinally inserted in the middle position inside the anti-trap seat and penetrates through the middle position inside the anti-slip mat; one end of the inserted bar is in threaded connection with the lower end of the pressing handle, and the other end of the inserted bar is in threaded connection with the upper end of the conical head.

Preferably, the moving nut is provided with two stainless steel long nuts, and the rotating directions are opposite.

Preferably, the first mounting seat and the second mounting seat are respectively connected with the upper end bolts of the open-ended U-shaped sliding seat arranged on the left side and the right side.

Preferably, the transverse bottom of the clip-shaped frame is bolted at the middle position of the upper part of the stabilizing bracket.

Preferably, the lifting platform is transversely bolted at the middle position of the inner side between the lifting nuts.

Preferably, the lifting linear slide rail is transversely bolted at the middle position of the inner side between the mounting lining seats.

Preferably, the electroless gear reduction box specifically adopts a DGAB-L type manual gear box.

Preferably, the buffer spring is a cylindrical stainless steel spring and is located between the U-shaped clamping frame and the clamping seat.

Preferably, the protective pad is a rubber pad.

Preferably, the transverse bottom of the U-shaped clamping frame is connected to the middle position of the upper part of the lifting platform through a bolt.

Preferably, the non-slip mat adopts two rubber mats.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses in, rotatory screw rod, return the type frame, hand wheel, gear motor, remove the nut, movable connecting rod and opening return the setting of type slide, be favorable to improving and lift from the locking effect, can avoid falling suddenly, play the protection locking effect, it is inside rotatory at the type frame that returns to drive rotatory screw rod through gear motor, can make to remove the nut and drive opening return the type slide through movable connecting rod and remove at type frame outer wall, make initiative activity flat head pole and driven activity flat head pole round the loose axle inward displacement, can make first U type slider and second U type slider remove at lift linear slide outer wall, make lift linear slide drive elevating platform carry out the lift removal work, can assist hand through hand wheel, increase manual operation function, can play the auto-lock effect through gear motor.

2. The utility model discloses in, retaining ring, lifting screw, lifting nut, the installation base, the setting of electroless gear reduction box and hand wheel is favorable to carrying out manual lifting operation under the electroless condition, rotates through handheld hand wheel for electroless gear reduction box drives lifting screw and lifts the action at the installation base is inside rotatory, makes lifting nut drive the elevating platform at the lifting screw outer wall, in order to guarantee mechanism job stabilization nature.

3. The utility model discloses in, the setting of retaining ring, be favorable to playing limiting displacement, guarantee to lift work and go on smoothly.

4. The utility model discloses in, the protection fill up, U type card frame, the type of falling U slide, the holder, the activity pull rod, the setting of buffer spring and pull handle is favorable to the fixed equipment of waiting to lift, avoid appearing lifting the landing problem, guarantee to lift stability, fill up through the protection and can make equipment lift the position and arrange U type card frame upper portion in, and outwards stimulate the activity pull rod through handheld pull handle and remove inside U type card frame, make the holder lift the position with equipment and press from both sides tightly, loosen the pull handle, because buffer spring releases the ability, can make holder clamping device lift the position, guarantee the stability of fixing, and then guarantee to lift stability.

5. The utility model discloses in, the setting of protection pad, be favorable to playing the antiskid effect, guarantee to lift stability.

6. The utility model discloses in, the slipmat, prevent the seat of caving in, firm support, the inserted bar, the setting of pressing handle and conical head is favorable to playing bottom sprag stability, guarantees the fixed fastness in bottom, can play stability to ground through firm support to make prevent the seat of caving in through the slipmat support that stabilizes to ground, in order to guarantee the fastness, can hand the handle of pressing and push down the inserted bar, make the conical head insert the underground, can increase stability, avoid removing, guarantee stability, be applicable to non-bituminous pavement.

7. The utility model discloses in, electroless gear reduction box specifically adopt DGAB-L type manual gear box's setting, be favorable to alleviateing manipulation strength, can be convenient for carry out hand operation.

8. The utility model discloses in, the initiative activity flat head pole, the setting of driven activity flat head pole and loose axle is favorable to guaranteeing the rotatory moving state, avoids appearing the card phenomenon of dying.

9. The utility model discloses in, first U type slider, second U type slider and lift linear slide rail's setting, be favorable to guaranteeing to remove the linearity, and then guarantee to lift the verticality.

10. The utility model discloses in, the setting of horizontal pearl be favorable to confirming constantly and lift the horizontality, and then guarantee to lift stability.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view of the self-locking type anti-slip lifting rod structure of the present invention.

Fig. 3 is a schematic structural view of the lifting rod structure capable of being operated manually without electricity according to the present invention.

Fig. 4 is a schematic structural view of the adjustable anti-slip lifting clamp seat structure of the present invention.

Fig. 5 is a schematic structural view of the bottom support fixing frame structure for preventing sinking of the present invention.

In the figure:

1. a flat head rod is actively moved; 2. a driven movable flat head rod; 3. a movable shaft; 4. a connecting shaft; 5. a first U-shaped slider; 6. a first mounting seat; 7. a second mounting seat; 8. a second U-shaped slider; 9. lifting the linear slide rail; 10. horizontal beads; 11. a lifting platform; 12. a self-locking anti-skid lifting rod structure; 121. rotating the screw; 122. a clip frame; 123. a hand-operated wheel; 124. a reduction motor; 125. moving the nut; 126. a movable connecting rod; 127. an open-ended double-sided slider; 13. the lifting rod structure can be operated manually without electricity; 131. a retainer ring; 132. a lifting screw; 133. a lifting nut; 134. installing a lining seat; 135. a non-electric gear reducer; 136. a hand wheel; 14. the adjustable antiskid lifting clamping seat structure; 141. a protective pad; 142. a U-shaped clamping frame; 143. an inverted U-shaped slide; 144. a holder; 145. a movable pull rod; 146. a buffer spring; 147. pulling a handle; 15. the anti-sinking bottom part supports the fixing frame structure; 151. a non-slip mat; 152. an anti-sink seat; 153. a stabilizing bracket; 154. inserting a rod; 155. pressing the handle; 156. a conical head.

Detailed Description

The present invention is described in detail below with reference to the accompanying drawings, as shown in fig. 1 and fig. 2, a self-locking mechanism for a lifting machine includes a driving movable flat head rod 1, a driven movable flat head rod 2, a movable shaft 3, a connecting shaft 4, a first U-shaped slider 5, a first mounting seat 6, a second mounting seat 7, a second U-shaped slider 8, a lifting linear slide rail 9, a horizontal bead 10, a lifting platform 11, a self-locking type anti-slip lifting rod structure 12, a manually operated lifting rod structure 13 without electricity, an adjustable anti-slip lifting holder structure 14 and an anti-sinking bottom support fixing frame structure 15, wherein the joint between the driving movable flat head rod 1 and the driven movable flat head rod 2 is movably connected through the movable shaft 3; one end of the active movable flat head rod 1 is connected with the lower end of the inside of the first U-shaped sliding block 5 through a connecting shaft 4, and the other end of the active movable flat head rod is connected with the middle position of the inside of the first mounting seat 6 through the connecting shaft 4; one end of the driven movable flat head rod 2 is connected with the middle position inside the second mounting seat 7 through a connecting shaft 4, and the other end of the driven movable flat head rod is connected with the lower end inside the second U-shaped sliding block 8 through the connecting shaft 4; the first U-shaped sliding block 5 and the second U-shaped sliding block 8 are respectively connected to the left side and the right side of the lower part of the outer wall of the lifting linear sliding rail 9 in a sliding and clamping manner; the horizontal beads 10 are transversely embedded in the middle positions of the inner sides of the front part and the rear part of the lifting platform 11 respectively; the self-locking anti-skid lifting rod structure 12 is connected with an anti-sinking bottom supporting and fixing frame structure 15; the lifting rod structure 13 capable of being operated manually without electricity and the adjustable anti-skid lifting clamping seat structure 14 are respectively connected with the lifting platform 11; the self-locking type anti-skid lifting rod structure 12 comprises a rotary screw rod 121, a clip-shaped rack 122, a hand wheel 123, a speed reducing motor 124, a movable nut 125, a movable connecting rod 126 and an opening clip-shaped sliding seat 127, wherein one transverse end of the rotary screw rod 121 is connected with the middle position of the left wall in the clip-shaped rack 122 through a bearing, and the other transverse end of the rotary screw rod 121 is connected with the middle position of the right wall in the clip-shaped rack 122 through a bearing; the hand-operated wheel 123 is connected with the left end of the rotating screw rod 121 in a key mode; the speed reducing motor 124 is connected to the right end of the rectangular frame 122 through a bolt, and an output shaft of the speed reducing motor 124 is connected with a right end coupling of the rotating screw 121; the movable nuts 125 are respectively transversely screwed on the left side and the right side of the outer wall of the rotary screw 121; the open-ended U-shaped sliding seat 127 is respectively sleeved on the left side and the right side of the outer wall of the upper part of the U-shaped rack 122 in a sliding manner; the utility model discloses a lift linear slide rail 9, including activity connecting rod 126, movable connecting rod 126 one end threaded connection opening time slide seat 127, the upper end of other end threaded connection removal nut 125, it is inside rotatory at time frame 122 to drive rotatory screw rod 121 through gear motor 124, can make removal nut 125 drive opening time slide seat 127 through activity connecting rod 126 and remove at time frame 122 outer wall, make initiative activity flat head pole 1 and driven activity flat head pole 2 inwards move around the loose axle 3, can make first U type slider 5 and second U type slider 8 remove at lift linear slide rail 9 outer wall, make lift linear slide rail 9 drive elevating platform 11 carry out the lifting movement work, can assist hand through hand wheel 123, increase manual operation function, can play the auto-lock effect through gear motor 124.

In this embodiment, referring to fig. 3, the manually-operated lifting rod structure 13 includes a retainer ring 131, a lifting screw 132, a lifting nut 133, a mounting bushing 134, a non-electric gear reduction box 135 and a hand wheel 136, wherein the retainer ring 131 is sleeved inside an annular groove formed in an outer wall of an upper end of the lifting screw 132; the lifting screw 132 is longitudinally and threadedly connected inside the lifting nut 133; the lower part of the lifting screw 132 also penetrates through the middle position inside the mounting lining seat 134 in the longitudinal direction; the coupler at the longitudinal lower end of the lifting screw 132 is connected with the upper end of the output shaft of the electroless gear reduction box 135; the outer wall of the input shaft of the non-electric gear reduction box 135 is in key connection with the inner middle position of the hand wheel 136, the hand wheel 136 is held to rotate, the non-electric gear reduction box 135 drives the lifting screw 132 to rotate inside the mounting lining seat 134, the lifting nut 133 drives the lifting platform 11 to lift on the outer wall of the lifting screw 132, and the working stability of the mechanism is guaranteed.

In this embodiment, referring to fig. 4, the adjustable anti-skid lifting clamping seat structure 14 includes a protection pad 141, a U-shaped clamping frame 142, an inverted U-shaped sliding seat 143, a clamping seat 144, a movable pull rod 145, a buffer spring 146 and a pull handle 147, wherein the protection pad 141 is transversely glued to the middle position of the bottom inside the U-shaped clamping frame 142; the inverted U-shaped sliding seats 143 are respectively sleeved on the outer wall of the protective pad 141 and are slidably clamped on the left side and the right side of the outer wall of the bottom of the U-shaped clamping frame 142; the longitudinal lower end of the clamping seat 144 is connected with the middle position of the upper end of the inverted U-shaped sliding seat 143 through a bolt; the movable pull rods 145 are respectively transversely inserted into through holes formed in the upper sides of the insides of the left end and the right end of the U-shaped clamping frame 142; the outer wall of the movable pull rod 145 is sleeved with a buffer spring 146; one end of the movable pull rod 145 is in threaded connection with the clamping seat 144, the other end of the movable pull rod 145 is in threaded connection with the pull handle 147, the device lifting part can be arranged on the upper portion of the U-shaped clamping frame 142 through the protection pad 141, the movable pull rod 145 is pulled outwards through the hand-held pull handle 147 to move inside the U-shaped clamping frame 142, the device lifting part is clamped by the clamping seat 144, the pull handle 147 is loosened, and due to the energy release of the buffer spring 146, the clamping seat 144 can clamp the device lifting part, so that the fixing stability is guaranteed, and the lifting stability is further guaranteed.

In this embodiment, referring to fig. 5, the anti-sinking bottom supporting fixing frame structure 15 includes an anti-slip pad 151, an anti-sinking seat 152, a stabilizing bracket 153, an inserting rod 154, a pressing handle 155 and a conical head 156, wherein the anti-slip pad 151 is transversely glued to the lower surface of the anti-sinking seat 152; the anti-trap seats 152 are respectively and transversely bolted at the left end and the right end of the stabilizing bracket 153; the insertion rod 154 is longitudinally inserted in the inner middle position of the anti-trap seat 152 and passes through the inner middle position of the anti-slip pad 151; the lower extreme of inserted bar 154 one end threaded connection pressure handle 155, the upper end of other end threaded connection conical head 156 can play stability to ground through firm support 153 to make the seat 152 of preventing sinking stabilize the support to ground through slipmat 151, in order to guarantee the fastness, can hand the handle 155 of pressing and move inserted bar 154 downwards, make conical head 156 insert underground, can increase stability, avoid removing, guarantee stability, be applicable to non-bituminous pavement.

In this embodiment, specifically, the moving nut 125 is provided with two stainless steel long nuts, and the rotating directions are opposite.

In this embodiment, specifically, the first mounting seat 6 and the second mounting seat 7 are respectively connected to the upper end bolts of the open-ended square slide 127 disposed on the left and right sides.

In this embodiment, specifically, the horizontal bottom of the frame 122 is bolted to the middle of the upper part of the fixing bracket 153.

In this embodiment, specifically, the lifting platform 11 is horizontally bolted at an inner middle position between the lifting nuts 133.

In this embodiment, specifically, the lifting linear slide rail 9 is horizontally bolted at the middle position inside the mounting base 134.

In this embodiment, the non-electric gear reduction box 135 is a DGAB-L type manual gear box.

In this embodiment, specifically, the buffer spring 146 is a cylindrical stainless steel spring, and is located between the U-shaped clip frame 142 and the clip holder 144.

In this embodiment, specifically, the protection pad 141 is a rubber pad.

In this embodiment, specifically, the U-shaped clamp frame 142 is connected to the middle position of the upper portion of the lifting platform 11 through a bolt at the transverse bottom.

In this embodiment, specifically, the anti-slip pad 151 adopts two rubber pads.

In this embodiment, the reduction motor 124 is a JM-038 type worm gear reduction motor.

Principle of operation

In the utility model, the reduction motor 124 drives the rotary screw 121 to rotate inside the clip frame 122, so that the movable nut 125 drives the opening clip slide 127 to move on the outer wall of the clip frame 122 through the movable connecting rod 126, the active movable flat head rod 1 and the driven movable flat head rod 2 move inwards around the movable shaft 3, the first U-shaped slider 5 and the second U-shaped slider 8 can move on the outer wall of the lifting linear slide rail 9, the lifting linear slide rail 9 drives the lifting platform 11 to perform lifting movement work, the hand crank wheel 123 can assist hand cranking, the manual operation function is increased, the reduction motor 124 can play a self-locking role, the hand wheel 136 is rotated, the non-electric gear reduction box 135 drives the lifting screw 132 to rotate inside the mounting lining seat 134, and the lifting nut 133 drives the lifting platform 11 to perform lifting action on the outer wall of the lifting screw 132, in order to guarantee the stability of the mechanism, the device lifting part can be arranged on the upper part of the U-shaped clamping frame 142 through the protective pad 141, the movable pull rod 145 can be pulled outwards through the hand-held pull handle 147 to move inside the U-shaped clamping frame 142, the device lifting part can be clamped by the clamping seat 144, the pull handle 147 is loosened, the energy is released by the buffer spring 146, the device lifting part can be clamped by the clamping seat 144, the fixing stability is guaranteed, the lifting stability is further guaranteed, the stability can be achieved on the ground through the stabilizing support 153, the anti-slip seat 152 can be stably supported on the ground through the anti-slip pad 151, in order to guarantee the firmness, the inserting rod 154 can be pressed downwards through the hand-held pressing handle 155, the cone head 156 can be inserted into the ground, the stability can be increased, the movement is avoided, the stability is guaranteed, and the.

Utilize technical scheme, or technical personnel in the field are in the utility model discloses under technical scheme's the inspiration, design similar technical scheme, and reach above-mentioned technological effect, all fall into the utility model discloses a protection scope.

Claims (10)

1. The self-locking mechanism for the lifting machine is characterized by comprising a driving movable flat head rod (1), a driven movable flat head rod (2), a movable shaft (3), a connecting shaft (4), a first U-shaped sliding block (5), a first mounting seat (6), a second mounting seat (7), a second U-shaped sliding block (8), a lifting linear sliding rail (9), a horizontal bead (10), a lifting platform (11), a self-locking anti-skidding lifting rod structure (12), a manually operated non-electric lifting rod structure (13), an adjustable anti-skidding lifting clamping seat structure (14) and an anti-sinking bottom support fixing frame structure (15), wherein the joint between the driving movable flat head rod (1) and the driven movable flat head rod (2) is movably connected through the movable shaft (3); one end of the active movable flat head rod (1) is connected with the lower end of the inside of the first U-shaped sliding block (5) through a connecting shaft (4), and the other end of the active movable flat head rod is connected with the middle position of the inside of the first mounting seat (6) through the connecting shaft (4); one end of the driven movable flat head rod (2) is connected with the middle position in the second mounting seat (7) through a connecting shaft (4), and the other end of the driven movable flat head rod is connected with the lower end in the second U-shaped sliding block (8) through the connecting shaft (4); the first U-shaped sliding block (5) and the second U-shaped sliding block (8) are respectively clamped on the left side and the right side of the lower part of the outer wall of the lifting linear sliding rail (9) in a sliding manner; the horizontal beads (10) are transversely embedded in the middle positions of the inner sides of the front part and the rear part of the lifting platform (11) respectively; the self-locking type anti-skid lifting rod structure (12) is connected with the anti-sinking bottom supporting and fixing frame structure (15); the lifting rod structure (13) capable of being operated manually without electricity and the adjustable anti-skid lifting clamping seat structure (14) are respectively connected with the lifting platform (11); the self-locking type anti-skidding lifting rod structure (12) comprises a rotary screw rod (121), a clip-shaped frame (122), a hand-operated wheel (123), a speed reducing motor (124), a movable nut (125), a movable connecting rod (126) and an opening clip-shaped sliding seat (127), wherein one transverse end of the rotary screw rod (121) is connected with the middle position of the left wall in the clip-shaped frame (122) through a bearing, and the other transverse end of the rotary screw rod (121) is connected with the middle position of the right wall in the clip-shaped frame (122) through a bearing; the hand-operated wheel (123) is connected with the left end of the rotary screw rod (121) in a key mode; the speed reducing motor (124) is connected to the right end of the square-shaped frame (122) through a bolt, and an output shaft of the speed reducing motor (124) is connected with a right end coupling of the rotating screw rod (121); the movable nuts (125) are respectively transversely screwed on the left side and the right side of the outer wall of the rotary screw rod (121); the opening reverse sliding seats (127) are respectively sleeved on the left side and the right side of the outer wall of the upper part of the reverse rack (122) in a sliding manner; one end of the movable connecting rod (126) is in threaded connection with the lower end of the open-ended U-shaped sliding seat (127), and the other end of the movable connecting rod is in threaded connection with the upper end of the movable nut (125).

2. The self-locking mechanism for the lifter according to claim 1, wherein the manually operated non-electric operation lifting rod structure (13) comprises a retainer ring (131), a lifting screw (132), a lifting nut (133), a mounting lining seat (134), a non-electric gear reduction box (135) and a hand wheel (136), wherein the retainer ring (131) is sleeved inside an annular groove formed in the outer wall of the upper end of the lifting screw (132); the lifting screw (132) is longitudinally and threadedly connected inside the lifting nut (133); the lower part of the lifting screw rod (132) in the longitudinal direction penetrates through the middle position in the mounting lining seat (134); the coupler at the longitudinal lower end of the lifting screw (132) is connected with the upper end of an output shaft of the electroless gear reduction box (135); the outer wall of the input shaft of the electroless gear reduction box (135) is in key connection with the middle position inside the hand wheel (136).

3. The self-locking mechanism for the lifting machine according to claim 1, wherein the adjustable anti-skid lifting clamping seat structure (14) comprises a protection pad (141), a U-shaped clamping frame (142), an inverted U-shaped sliding seat (143), a clamping seat (144), a movable pull rod (145), a buffer spring (146) and a pull handle (147), wherein the protection pad (141) is transversely glued at the middle position of the bottom of the inner side of the U-shaped clamping frame (142); the inverted U-shaped sliding seats (143) are respectively sleeved on the outer wall of the protective pad (141) and are slidably clamped on the left side and the right side of the outer wall of the bottom of the U-shaped clamping frame (142); the longitudinal lower end of the clamping seat (144) is connected with the middle position of the upper end of the inverted U-shaped sliding seat (143) through a bolt; the movable pull rods (145) are respectively and transversely inserted into through holes formed in the upper sides of the insides of the left end and the right end of the U-shaped clamping frame (142); the outer wall of the movable pull rod (145) is sleeved with a buffer spring (146); one end of the movable pull rod (145) is connected with the clamp seat (144) in a threaded manner, and the other end of the movable pull rod is connected with the pull handle (147) in a threaded manner.

4. The self-locking mechanism for lifts according to claim 1, characterized in that said anti-trap bottom support fixture structure (15) comprises an anti-slip mat (151), an anti-trap seat (152), a stabilizing bracket (153), an insert rod (154), a pressing handle (155) and a conical head (156), said anti-slip mat (151) being glued laterally to the lower surface of the anti-trap seat (152); the anti-sinking seats (152) are respectively connected to the left end and the right end of the stabilizing bracket (153) through transverse bolts; the inserting rod (154) is longitudinally inserted in the middle position inside the anti-trap seat (152) and penetrates through the middle position inside the anti-skid pad (151); one end of the inserted rod (154) is in threaded connection with the lower end of the pressing handle (155), and the other end of the inserted rod is in threaded connection with the upper end of the conical head (156).

5. Self-locking mechanism for lifts according to claim 1, characterised in that said mobile nut (125) is provided with two long stainless steel nuts and the rotation directions are opposite.

6. The self-locking mechanism for a lifter according to claim 1, wherein the first mounting seat (6) and the second mounting seat (7) are respectively connected with the upper end of the open-ended return-type sliding seat (127) arranged on the left side and the right side by bolts.

7. The self-locking mechanism for a hoist according to claim 3, wherein the horizontal bottom of the frame (122) is bolted to the upper middle of the steady support (153).

8. Self-locking mechanism for lifts according to claim 1, characterised in that said lifting platform (11) is bolted transversally in an internal intermediate position between the lifting nuts (133).

9. Self-locking mechanism for lifts according to claim 1, characterised in that said lifting linear slide (9) is bolted transversally in an intermediate internal position between the mounting seats (134).

10. The self-locking mechanism for a hoist according to claim 3, wherein the U-shaped bracket (142) is bolted to an upper middle portion of the elevating platform (11) in a lateral bottom direction.

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