A ratchet-based lift rod locking device

Abstract

This invention relates to a ratchet-based locking device for a lifting rod, comprising: an electric lifting rod, multiple locking mechanisms for locking the electric lifting rod, and a device body. The electric lifting rod is composed of multiple sequentially slidably connected lifting sections. The device body has a cylindrical hollow center. The multiple locking mechanisms are equally distributed and installed on the inner wall of the hollow portion of the device body, surrounding the outer side of the electric lifting rod. The electric lifting rod vertically penetrates the hollow portion of the device body. This invention enables locking and unlocking of the device at different lifting sections of the electric lifting rod, ensuring safe transportation and operation of the equipment, and offering long-term economic benefits.

Description

Technical Field

[0001] This invention relates to the field of military multi-faceted electronic warfare, and in particular to a ratchet-based lifting rod locking device. Background Technology

[0002] With the completion of military reforms, joint operations involving multiple branches of the armed forces have become increasingly mature, making the accompanying and covering role of electronic reconnaissance vehicles and electronic jamming vehicles increasingly important in group operations. The servo systems of traditional electronic reconnaissance and jamming vehicles cannot adapt to the various road conditions along operational routes. New-generation interferometer multi-array reconnaissance technology and integrated reconnaissance and jamming technology based on multi-beam, phased array, and DBF (Digital Beam Forming) have emerged, allowing for switching between desired reconnaissance and jamming directions via electronic switches. However, for reconnaissance and jamming of ground targets, the equipment needs to be raised to a certain height via an electric lifting mast. For equipment with dimensions exceeding 1.5m and a weight exceeding 100kg, securing it on the electric lifting mast has become a pressing issue, currently lacking an effective solution. This patent designs a ratchet-based lifting mast locking device, enabling locking and unlocking of multi-array equipment with different locking diameters during setup and dismounting on the electric lifting mast, providing a solution for the fixation and movement of multi-array equipment on the electric lifting mast. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a ratchet-based lifting rod locking device to realize the locking and unlocking of the device at different lifting sections of the electric lifting rod.

[0004] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: A ratchet-based lifting rod locking device includes: an electric lifting rod, a plurality of locking mechanisms for locking the electric lifting rod, and a device body; the electric lifting rod is composed of a plurality of lifting sections that are slidably connected in sequence, the device body has a columnar hollow in the middle, the plurality of locking mechanisms are equally distributed and installed on the inner wall of the hollow part of the device body, and surround the outside of the electric lifting rod, the electric lifting rod vertically penetrates the hollow part of the device body.

[0005] The beneficial effects of this invention are: by using multiple locking mechanisms evenly distributed and installed on the inner wall of the hollow part of the equipment body, the locking and unlocking functions of the equipment body on different lifting sections of the electric lifting rod are realized. Furthermore, the evenly distributed multiple locking mechanisms and the electric lifting rod perpendicularly penetrating the equipment body can improve the stability of the mechanism, thereby enhancing the locking ability and preventing the equipment body from tilting and collapsing at a high point of the electric lifting rod due to uneven gravity distribution.

[0006] Based on the above technical solution, the present invention can be further improved as follows.

[0007] Furthermore, the locking mechanism includes: a locking block, a fixed block, a connecting rod, a sliding block, a ratchet, a ratchet rack, a movable block, and an electric push rod; the fixed block and the locking block are hinged together, the fixed block is connected to the electric push rod and the ratchet rack, both ends of the connecting rod are hinged to the locking block and the sliding block respectively, the ratchet and the movable block are connected to the sliding block, and the movable block is connected to the electric push rod.

[0008] The beneficial effects of adopting the above-mentioned further solution are: the modular connection of the various components of the locking mechanism enables the components to cooperate and work together to complete the locking and unlocking functions. The locking block is the main component for locking; the fixed block fixes the locking mechanism to the equipment body and provides support; the connecting rod transmits power; the sliding block and the movable block bear load and transmit power; the ratchet and ratchet rack form a ratchet mechanism; and the electric push rod provides power to the locking mechanism.

[0009] Furthermore, the fixing block is a rod, and the fixing block is provided with a connecting component for hinged to the locking block. The fixing block is installed on the inner wall of the hollow part of the device body.

[0010] The beneficial effects of adopting the above-mentioned further solution are: the connection between the fixing block and the inner wall of the hollow part of the equipment body can fix the locking mechanism on the equipment body, and the fixing block is provided with a protruding connecting part, which is conducive to connecting the locking block and providing a fulcrum for the rotation of the locking block.

[0011] Furthermore, the locking block includes: a locking block end face and a rotating shaft; the locking block has a fan-shaped structure, the rotating shaft is located near the center of the fan-shaped structure, the connecting component of the fixing block is provided with a rotating shaft hole, the rotating shaft is rotatably mounted on the rotating shaft hole, the locking block end face is composed of multiple sets of arc segments and straight segments, and multiple sets of rubber pad grooves are provided on the locking block end face.

[0012] The beneficial effects of adopting the above-mentioned further scheme are as follows: The distance from each set of arc segments to the rotating shaft is designed based on the distance from the fixed block to each lifting section, thus ensuring that the number of arc segments and straight segments on the end face of the locking block corresponds to the number of lifting sections of the electric lifting rod. The arc segments act as a buffer, preventing the straight segments from directly contacting the wall of the electric lifting rod when the locking mechanism changes position between different lifting sections; after the straight segments make parallel contact with the wall of the electric lifting rod, they grip the electric lifting rod, achieving locking.

[0013] Furthermore, the rubber pad groove includes: an arc segment rubber pad groove and a straight segment rubber pad groove, the arc segment rubber pad groove and the straight segment rubber pad groove are respectively arranged on the arc segment and the straight segment, and a rubber pad is installed in the rubber pad groove.

[0014] The beneficial effect of adopting the above-mentioned further solution is that setting a rubber pad in the rubber pad groove on the end face of the locking block can increase the coefficient of friction, improve the locking ability, and prevent slippage after locking.

[0015] Furthermore, the connecting rod is a rod body with arc-shaped ends. The two ends of the connecting rod are respectively provided with a first drive shaft hole and a second drive shaft hole for connecting the locking block and the sliding block. The locking block is also provided with a first drive shaft adapted to the first drive shaft hole. The first drive shaft is located on the side near the fan-shaped structure and is rotatably installed in the first drive shaft hole. The sliding block is provided with a second drive shaft adapted to the second drive shaft hole and is rotatably installed in the second drive shaft hole.

[0016] The beneficial effects of adopting the above-mentioned further solution are: the two ends of the connecting rod are arc-shaped, which can avoid interference between the connecting rod and components such as ratchet, and at the same time enhance the aesthetics of the mechanism; the connecting rod connects the locking block and the sliding block, plays a role in power transmission, and pulls the locking block to move.

[0017] Furthermore, the ratchet is a wedge-shaped mechanism, and a ratchet movable groove is provided on the ratchet. The ratchet movable groove is a T-shaped groove or a dovetail groove, and a spring is provided in the ratchet movable groove. The sliding block is also provided with a ratchet connecting key, and the ratchet connecting key is connected to the ratchet movable groove through the spring.

[0018] The beneficial effects of adopting the above-mentioned further solution are: the wedge mechanism can form a ratchet mechanism with the ratchet rack, realizing the unidirectional movement of the ratchet; the ratchet movable groove is designed as a T-groove or dovetail groove, which restricts the ratchet to only move left and right, preventing the ratchet from disengaging from the sliding block; during the unlocking process, the spring plays a buffering role, preventing the ratchet connecting key from rushing out of the ratchet movable groove; during the locking process, the spring plays a rebound role, restoring the ratchet to its initial state, and forming a ratchet mechanism with the ratchet rack again to achieve locking.

[0019] Furthermore, the movable block includes a wedge-shaped component, a movable hole, and a movable groove; the movable block is a column with the movable groove at its bottom, the sliding block is provided with a movable block connecting key, the movable block connecting key is slidably installed in the movable hole, the movable groove is a T-groove or a dovetail groove, the wedge-shaped component is installed on the side of the movable block near the ratchet, and the wedge-shaped surface of the wedge-shaped component abuts against the wedge-shaped surface of the ratchet.

[0020] The beneficial effects of adopting the above-mentioned further solution are: the movable groove is designed as a T-groove or dovetail groove, which restricts the movable block to only move up and down, and prevents the movable block from disengaging from the locking mechanism; the movable hole has a certain distance in the vertical direction, which provides the necessary displacement for the wedge-shaped part of the movable block to push out the ratchet.

[0021] Furthermore, the ratchet includes a first locking ratchet and a second locking ratchet; one side of the ratchet is a plane and the other side is a rack, the plane side of the ratchet is connected to the fixing block, and the rack side is adapted to the wedge-shaped surface of the ratchet.

[0022] The beneficial effects of adopting the above-mentioned further solution are that the first locking ratchet and the second locking ratchet provide the necessary locking and unlocking functions for the locking mechanism during the setup and dismantling process. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the locking mechanism structure provided in an embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of the unlocking state of the lifting rod locking device provided in an embodiment of the present invention;

[0025] Figure 3 A schematic diagram of the locking state of the lifting rod locking device provided in an embodiment of the present invention. Figure 1 ;

[0026] Figure 4 A schematic diagram of the locking state of the lifting rod locking device provided in an embodiment of the present invention. Figure 2 ;

[0027] Figure 5 This is a schematic diagram of the locking block structure of the locking mechanism provided in an embodiment of the present invention;

[0028] Figure 6 This is a schematic diagram of the locking block end face structure of the locking mechanism provided in an embodiment of the present invention;

[0029] Figure 7 This is a schematic diagram of the ratchet-ratchet matching mechanism provided in an embodiment of the present invention;

[0030] Figure 8 Schematic diagram of the locking mechanism movable block structure provided in the embodiment of the present invention Figure 1 ;

[0031] Figure 9 Schematic diagram of the locking mechanism movable block structure provided in the embodiment of the present invention Figure 2 ;

[0032] Figure 10 A schematic diagram of the sliding block structure of the locking mechanism provided in an embodiment of the present invention. Figure 1 ;

[0033] Figure 11 A schematic diagram of the sliding block structure of the locking mechanism provided in an embodiment of the present invention. Figure 2 ;

[0034] Figure 12This is a schematic diagram of the ratchet structure of the locking mechanism provided in an embodiment of the present invention;

[0035] Figure 13 This is a schematic diagram of the ratchet-sliding block connection of the locking mechanism provided in an embodiment of the present invention.

[0036] The attached diagram lists the components represented by each number as follows:

[0037] 1. Install locking rubber pad; 2. Locking block; 3. Remove locking rubber pad; 4. Fixing block; 5. Connecting rod; 6. Sliding block; 7. Racket; 8. First locking ratchet rack; 9. Second locking ratchet rack; 10. Movable block; 11. Electric push rod; 12. Electric lifting rod; 13. Locking mechanism; 14. Equipment body; 15. Remove locking arc section; 16. Remove locking straight section; 17. Install locking arc section; 18. Install locking straight section; 19. First 20. Drive shaft; 21. Rotary shaft; 22. Arc-shaped rubber pad groove; 23. Straight-line rubber pad groove; 24. Ratchet; 25. Wedge-shaped component; 26. Movable hole; 27. Movable groove; 28. Rotary shaft hole; 29. ​​First drive shaft hole; 30. Rubber pad; 31. Lock block end face; 32. Rubber pad groove; 33. Second drive shaft; 34. Spring; 35. Movable block connecting key; 36. Ratchet connecting key; 37. Ratchet movable groove. Detailed Implementation

[0038] The principles and features of the present invention are described below. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0039] like Figure 2 As shown, a ratchet-based lifting rod locking device includes: an electric lifting rod 12, a plurality of locking mechanisms 13 for locking the electric lifting rod 12, and a device body 14; the electric lifting rod 12 is composed of a plurality of lifting sections that are slidably connected in sequence, the device body 14 has a columnar hollow center, the plurality of locking mechanisms 13 are equally distributed and installed on the inner wall of the hollow part of the device body 14 and surround the outside of the electric lifting rod 12, and the electric lifting rod 12 penetrates vertically through the hollow part of the device body 14.

[0040] The beneficial effects of adopting the above scheme are: by using multiple locking mechanisms that are evenly distributed and installed on the inner wall of the hollow part of the equipment body, the locking and unlocking functions of the equipment body on different lifting sections of the electric lifting rod can be realized. Furthermore, the even distribution of multiple locking mechanisms and the electric lifting rod penetrating the equipment body vertically can improve the stability of the mechanism, thereby enhancing the locking ability and preventing the equipment body from tilting and collapsing at a high point of the electric lifting rod due to uneven gravity distribution.

[0041] Preferred, such as Figure 1 and Figure 7As shown, the locking mechanism 13 includes: a locking block 2, a fixing block 4, a connecting rod 5, a sliding block 6, a ratchet 7, a ratchet rack 23, a movable block 10, and an electric push rod 11; the fixing block 4 and the locking block 2 are hinged together, the fixing block 4 is connected to the electric push rod 11 and the ratchet rack 23, the two ends of the connecting rod 5 are hinged to the locking block 2 and the sliding block 6 respectively, the ratchet 7 and the movable block 10 are connected to the sliding block 6, and the movable block 10 is connected to the electric push rod 11.

[0042] The beneficial effects of adopting the above-mentioned further solution are: the modular connection of the various components of the locking mechanism enables the components to cooperate and work together to complete the locking and unlocking functions. The locking block is the main component for locking; the fixed block fixes the locking mechanism to the equipment body and provides support; the connecting rod transmits power; the sliding block and the movable block bear load and transmit power; the ratchet and ratchet rack form a ratchet mechanism; and the electric push rod provides power to the locking mechanism.

[0043] Preferred, such as Figure 1 and Figure 2 As shown, the fixing block 4 is a rod body, and the fixing block 4 is provided with a connecting component for hinged to the locking block 2. The fixing block 4 is installed on the inner wall of the hollow part of the device body 14.

[0044] The beneficial effects of adopting the above-mentioned further solution are: the connection between the fixing block and the inner wall of the hollow part of the equipment body is conducive to fixing the locking mechanism to the equipment body, and the fixing block is provided with a protruding connecting part, which is conducive to connecting the locking block and providing a fulcrum for the rotation of the locking block.

[0045] Preferred, such as Figure 1 , Figure 5 and Figure 6 As shown, the locking block 2 includes: a locking block end face 31 and a rotating shaft 20; the locking block 2 has a fan-shaped structure, the rotating shaft 20 is located near the center of the fan-shaped structure, the connecting component of the fixing block 4 is provided with a rotating shaft hole 27, the rotating shaft 20 is rotatably mounted on the rotating shaft hole 27, the locking block end face 31 is composed of multiple sets of arc segments and straight segments, and multiple sets of rubber pad grooves 32 are provided on the locking block end face 31.

[0046] The beneficial effects of adopting the above-mentioned further solution are as follows: The distance from each set of arc segments to the rotating shaft is designed based on the distance from the fixed block to each lifting section, thus ensuring that the number of arc segments and straight segments on the locking block end face corresponds to the number of lifting sections of the electric lifting rod. The arc segments act as a buffer, preventing the straight segments from directly contacting the electric lifting rod wall when changing positions between different lifting sections; after the straight segments make parallel contact with the electric lifting rod wall, they grip the electric lifting rod, achieving locking.

[0047] Preferred, such as Figure 1 and Figure 6 As shown, the rubber pad groove 32 includes: an arc segment rubber pad groove 21 and a straight segment rubber pad groove 22. The arc segment rubber pad groove 21 and the straight segment rubber pad groove 22 are respectively arranged on the arc segment and the straight segment. A rubber pad 30 is installed in the rubber pad groove 32.

[0048] The beneficial effect of adopting the above-mentioned further solution is that: a rubber pad is set in the rubber pad groove on the end face of the locking block to increase the coefficient of friction, improve the locking ability, and prevent slippage after locking.

[0049] Preferred, such as Figure 1 , Figure 5 and Figure 10 As shown, the connecting rod 5 is a rod body with arc-shaped ends. The two ends of the connecting rod 5 are respectively provided with a first drive shaft hole 28 and a second drive shaft hole 29 connecting the locking block 2 and the sliding block 6. The locking block 2 is also provided with a first drive shaft 19 adapted to the first drive shaft hole 28. The first drive shaft 19 is located near the side of the fan-shaped structure and is rotatably installed in the first drive shaft hole 28. The sliding block 6 is provided with a second drive shaft 33 adapted to the second drive shaft hole 29 and is rotatably installed in the second drive shaft hole 29.

[0050] The beneficial effects of adopting the above-mentioned further solution are: the two ends of the connecting rod are arc-shaped, which can avoid interference between the connecting rod and components such as ratchet, and at the same time enhance the aesthetics of the mechanism; the connecting rod connects the locking block and the sliding block, plays a role in power transmission, and pulls the locking block to move.

[0051] Preferred, such as Figure 10 , Figure 11 and Figure 12 As shown, the ratchet 7 is a wedge-shaped mechanism, and a ratchet movable groove 37 is provided on the ratchet 7. The ratchet movable groove 37 is a T-shaped groove or a dovetail groove, and a spring 34 is provided in the ratchet movable groove 37. The sliding block 6 is also provided with a ratchet connecting key 36, and the ratchet connecting key 36 is connected to the ratchet movable groove 37 through the spring 34.

[0052] The beneficial effects of adopting the above-mentioned further solution are: the wedge mechanism can form a ratchet mechanism with the ratchet rack, realizing the unidirectional movement of the ratchet; the ratchet movable groove is designed as a T-groove or dovetail groove, which restricts the ratchet to only move left and right, preventing the ratchet from disengaging from the sliding block; during the unlocking process, the spring plays a buffering role, preventing the ratchet connecting key from rushing out of the ratchet movable groove; during the locking process, the spring plays a rebound role, restoring the ratchet to its initial state, and forming a ratchet mechanism with the ratchet rack again to achieve locking.

[0053] Preferred, such as Figure 1 , Figure 8 , Figure 9 and Figure 10 As shown, the movable block 10 includes a wedge-shaped component 24, a movable hole 25, and a movable groove 26; the movable block 10 is a column with the movable groove 26 opened at the bottom, the sliding block 6 is provided with a movable block connecting key 35, the movable block connecting key 35 is slidably installed in the movable hole 25, the movable groove 26 is a T-shaped groove or a dovetail groove, the wedge-shaped component 24 is installed on the side of the movable block 10 near the ratchet 7, and the wedge-shaped surface of the wedge-shaped component 24 abuts against the wedge-shaped surface of the ratchet 7.

[0054] The movable hole 25 can be designed as an oblong hole, a rectangular hole, or an elliptical hole.

[0055] The beneficial effects of adopting the above-mentioned further solution are: the movable groove is designed as a T-groove or dovetail groove, which restricts the movable block to only move up and down, and prevents the movable block from disengaging from the locking mechanism; the movable hole has a certain distance in the vertical direction, which provides the necessary displacement for the wedge-shaped part of the movable block to push out the ratchet.

[0056] Preferred, such as Figure 1 and Figure 7 As shown, the ratchet 23 includes a first locking ratchet 8 and a second locking ratchet 9; one side of the ratchet 23 is a plane and the other side is a rack. The plane side of the ratchet 23 is connected to the fixing block 4, and the rack side is adapted to the wedge-shaped surface of the ratchet 7.

[0057] The beneficial effects of adopting the above-mentioned further solution are that the first locking ratchet and the second locking ratchet provide the necessary locking and unlocking functions for the locking mechanism during the setup and dismantling process.

[0058] like Figure 1 As shown, the locking mechanism 13 consists of a locking block 2, a fixed block 4, a slider (i.e., a sliding block 6), a movable block 10, a ratchet mechanism (i.e., ratchet 7 and ratchet rack 23), a connecting rod 5, a rubber pad 30, and an electric push rod 11. A single set of equipment may have three, four, or more locking mechanisms 13 installed depending on its load capacity. Figure 2 , Figure 3 and Figure 4 The image shows the locking mechanism in use.

[0059] like Figure 5 and Figure 6 As shown, the locking block 2 is the main mounting support of the clamping device (i.e., the locking mechanism 13), and it is a fan-shaped structure. The fan surface of the locking block has two arc surfaces and two straight sections (i.e., the retraction locking arc section 15, the retraction locking straight section 16, the mounting locking arc section 17, and the mounting locking straight section 18). The end face of the fan surface (i.e., the end face 31 of the locking block) is designed with a rubber pad groove 32, in which two rubber pads (i.e., the mounting locking rubber pad 1 and the retraction locking rubber pad 3) are glued or screwed.

[0060] The slider (i.e., movable block 10) is a linear guide mechanism. The guide rail is fixed on the fixed block, and the movable mechanism (i.e., movable block 10) is designed with a pin hole (i.e., movable hole 25). The slider (i.e., movable block 10) drives the connecting rod 5 and the locking block 2 to move.

[0061] like Figure 7 As shown, the ratchet mechanism (i.e., ratchet 7 and ratchet rack 23) is a linear ratchet mechanism, consisting of ratchet 7, a retraction locking ratchet rack (i.e., the first locking ratchet rack 8), and an erection locking ratchet rack (i.e., the second locking ratchet rack 9). It achieves locking of the locking block 2 in both the erection and retraction states.

[0062] The movable block 10 is designed with an elongated hole (i.e., movable hole 25) to connect with the slider (i.e., sliding block 6), and the front end is designed with a wedge-shaped mechanism (i.e. wedge-shaped component 24). The automatic unlocking function is achieved by pushing out the ratchet 7.

[0063] The distances L1 (from the center of the rotating shaft 20 to the mounting locking arc segment 17) and L2 (from the center of the rotating shaft 20 to the retraction locking arc segment 15) of the locking block 2 are designed based on the distance between the right side of the fixed block 4 and the outer wall of the electric lifting rod 12.

[0064] like Figure 1 and Figure 2 As shown, the electric push rod 11 pushes downward, pushing the movable block 10 to move downward. The wedge-shaped component 24 on the movable block 10 pushes the ratchet 7 to the right, causing the ratchet 7 and the ratchet rack 23 to disengage, thus releasing the ratchet mechanism. At this time, the movement of the connecting rod 5 and the locking block 2 is no longer restricted by the ratchet mechanism. The movable block 10 pushes the sliding block 6 to move downward, thereby driving the connecting rod 5 and the locking block 2 to move downward, thus unlocking.

[0065] like Figure 1 and Figure 3 As shown, the electric push rod 11 is stretched upward, the movable block 10 moves upward, the ratchet 7 and the wedge surface of the wedge component 24 separate, the ratchet 7 is reset under the rebound action of the spring 34, and forms a ratchet mechanism again with the ratchet rack 23. At this time, the sliding block 6 and the movable block 10 can only move upward under the action of the ratchet mechanism, which in turn pulls the connecting rod 5 and the locking block 2 to move upward. When the straight section of the locking block 2 is in close contact with the outer wall of the electric lifting rod, locking is achieved.

[0066] This invention enables automatic locking and unlocking of equipment on electric lifting masts. It ensures safe transport and operational safety of the equipment, and offers long-term economic benefits.

[0067] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A ratchet-based lifting lever locking device, characterized in that, include: Electric lifting rod (12), multiple locking mechanisms (13) for locking the electric lifting rod (12) and equipment body (14). The electric lifting rod (12) is composed of multiple lifting sections that slide and fit together in sequence. The middle of the equipment body (14) is a columnar hollow. Multiple locking mechanisms (13) are equally installed on the inner wall of the hollow part of the equipment body (14) and surround the outside of the electric lifting rod (12). The electric lifting rod (12) penetrates vertically through the hollow part of the equipment body (14). The locking mechanism (13) includes: a locking block (2), a fixing block (4), a connecting rod (5), a sliding block (6), a ratchet (7), a ratchet rack (23), a movable block (10), and an electric push rod (11). The fixed block (4) and the locking block (2) are hinged together. The fixed block (4) is connected to the electric push rod (11) and the ratchet rack (23). The two ends of the connecting rod (5) are hinged to the locking block (2) and the sliding block (6) respectively. The sliding block (6) connects the ratchet (7) and the movable block (10). The movable block (10) is connected to the electric push rod (11). The locking block (2) includes: a locking block end face (31) and a rotating shaft (20); The locking block (2) has a fan-shaped structure. The rotating shaft (20) is located near the center of the fan-shaped structure. The connecting part of the fixing block (4) is provided with a rotating shaft hole (27). The rotating shaft (20) is rotatably mounted on the rotating shaft hole (27). The end face (31) of the locking block is composed of multiple sets of arc segments and straight segments. Multiple sets of rubber pad grooves (32) are provided on the end face (31) of the locking block. Based on the distance from the fixed block (4) to each lifting section, the distance from each set of arc segments of the locking block end face (31) to the rotating shaft (20) is designed so that the straight segment of the locking block end face (31) can be made to contact the electric lifting rod wall in parallel and then hold the electric lifting rod tightly.

2. The ratchet-based lifting lever locking device according to claim 1, characterized in that, The fixing block (4) is a rod body. The fixing block (4) is provided with a connecting part for hinged to the locking block (2). The fixing block (4) is installed on the inner wall of the hollow part of the equipment body (14).

3. The ratchet-based lifting lever locking device according to claim 1, characterized in that, The rubber pad groove (32) includes: an arc segment rubber pad groove (21) and a straight segment rubber pad groove (22). The arc segment rubber pad groove (21) and the straight segment rubber pad groove (22) are respectively arranged on the arc segment and the straight segment. A rubber pad (30) is installed in the rubber pad groove (32).

4. The ratchet-based lifting lever locking device according to claim 1, characterized in that, The connecting rod (5) is a rod body, and the two ends of the connecting rod (5) are arc-shaped. The two ends of the connecting rod (5) are respectively provided with a first drive shaft hole (28) and a second drive shaft hole (29) connecting the locking block (2) and the sliding block (6). The locking block (2) is also provided with a first drive shaft (19) adapted to the first drive shaft hole (28). The first drive shaft (19) is located near the side of the fan-shaped structure. The first drive shaft (19) is rotatably installed in the first drive shaft hole (28). The sliding block (6) is provided with a second drive shaft (33) adapted to the second drive shaft hole (29). The second drive shaft (33) is rotatably installed in the second drive shaft hole (29).

5. The ratchet-based lifting lever locking device according to claim 1, characterized in that, The ratchet (7) is a wedge-shaped mechanism, and a ratchet movable groove (37) is provided on the ratchet (7). The ratchet movable groove (37) is a T-shaped groove or a dovetail groove, and a spring (34) is provided inside the ratchet movable groove (37). The sliding block (6) is also provided with a ratchet connecting key (36), which is connected to the spring (34) and the ratchet movable groove (37).

6. The ratchet-based lifting lever locking device according to claim 1, characterized in that, The movable block (10) includes a wedge-shaped component (24), a movable hole (25), and a movable groove (26); The movable block (10) is a column with the movable groove (26) at the bottom. The sliding block (6) is provided with a movable block connecting key (35). The movable block connecting key (35) is slidably installed in the movable hole (25). The movable groove (26) is a T-shaped groove or a dovetail groove. The wedge-shaped component (24) is installed on the side of the movable block (10) near the ratchet (7), and the wedge-shaped surface of the wedge-shaped component (24) abuts against the wedge-shaped surface of the ratchet (7).

7. The ratchet-based lifting lever locking device according to claim 1, characterized in that, The ratchet (23) includes a first locking ratchet (8) and a second locking ratchet (9); The ratchet (23) has a flat side and a rack on the other side. The flat side of the ratchet (23) is connected to the fixing block (4), and the rack side is adapted to the wedge-shaped surface of the ratchet (7).

Images