阅读说明：本技术 一种电梯用组合式安全钳 (Combined safety tongs for elevator ) 是由 吴哲 于 2021-02-07 设计创作，主要内容包括：本发明提供了一种电梯用组合式安全钳,包括：上底板、下底板、夹紧装置和导轨,所述上底板水平位于所述下底板上方,所述夹紧装置位于所述上底板与下底板之间,所述导轨依次穿过上底板和下底板。从而最大限度防止对轿厢及导轨的损伤。安全钳夹紧装置结构设计成弹性导向夹钳式,整体结构为一焊接式框架,内部首层放置U型钳体,核心层为制停组件,由滚柱与楔块及提拉机构相结合,但滚柱为一组圆柱空心薄壳弹性体构成。这样,电梯在制停过程中一瞬间,产生的巨大能量绝大部分由其薄壳弹簧组承担及消耗掉,其余少量在U型钳体吸收,以最大限度防止对轿厢及导轨的损伤。同时,使安全钳整体结构设计完整、安装便利及可靠性高。(The invention provides a combined safety gear for an elevator, which comprises: the clamping device is arranged between the upper base plate and the lower base plate, and the guide rail sequentially penetrates through the upper base plate and the lower base plate. Thereby preventing damage to the car and the guide rail to the maximum extent. The safety tongs clamping device is designed into an elastic guide clamping type, the whole structure is a welding type framework, a U-shaped tongs body is placed on the first layer inside, the core layer is a braking component and is formed by combining a roller, a wedge block and a lifting mechanism, and the roller is a group of cylindrical hollow shell elastic bodies. Therefore, in the braking process of the elevator, most of the generated huge energy is born and consumed by the thin-shell spring set of the elevator at one moment, and the rest is absorbed by the U-shaped clamp body in a small amount so as to prevent the damage to the lift car and the guide rail to the maximum extent. Meanwhile, the safety tongs are complete in overall structural design, convenient to install and high in reliability.)

1. A combined safety gear for an elevator is characterized by comprising: the clamping device comprises an upper base plate (1), a lower base plate (2), a clamping device and a guide rail (3), wherein the upper base plate (1) is horizontally arranged above the lower base plate (2), the upper base plate (1) and the lower base plate (2) are connected through a supporting plate (18) in a welding mode, the clamping device is arranged between the upper base plate (1) and the lower base plate (2), and the guide rail (3) penetrates through the upper base plate (1) and the lower base plate (2) in sequence.

2. The combined safety gear for the elevator according to claim 1, characterized in that a first opening (4) is arranged in the middle of the upper bottom plate (1), and a second opening (5) is arranged in the middle of the lower bottom plate (2).

3. A combined safety gear for elevators according to claim 2, characterized in that the clamping device comprises:

the guide rail structure comprises a friction plate (6) and a wedge block (7), wherein the friction plate (6) and the wedge block (7) are respectively vertically arranged on two sides of the guide rail (3), the wedge block (7) is vertically arranged on one side, away from the guide rail (3), of the friction plate (6), the wedge block (7) is connected with the friction plate (6), a lifting rod (8) is arranged at the top end of the wedge block (7), one end of the lifting rod (8) is hinged with the upper end of the wedge block (7), and the other end of the lifting rod (8) extends out of a first opening (4);

the wedge block (7) is provided with three mandrels (10) in the vertical direction, the side, far away from the guide rail (3), of the wedge block (7) is uniformly and horizontally provided with the three mandrels (10), two ends of each mandrel (10) are vertically and symmetrically provided with a first retainer (9) and a second retainer (11), one end of each mandrel (10) is connected with the first retainer (9), the other end of each mandrel (10) is connected with the second retainer (11), and each mandrel (10) is sleeved with a thin-shell spring group (12);

the clamp body (13), the clamp body (13) is vertically located mandrel (10) is kept away from one side of guide rail (3), clamp body (13) bottom is vertically provided with first screw rod (14), first screw rod (14) one end with clamp body (13) are connected, the cover is equipped with compression spring (15) on first screw rod (14), compression spring (15) one end with first retainer (9) bottom surface contact, first screw rod (14) other end extends second opening (5) and first nut (16) threaded connection, compression spring (15) other end with clamp body (13) bottom surface contact.

4. A combined safety gear for an elevator according to claim 3, characterized in that a U-shaped gear body (17) is arranged between the upper base plate (1) and the lower base plate (2), two sides of the U-shaped clamp body (17) are respectively sleeved outside the two clamp bodies (13), the outer sides of two sides of the U-shaped clamp body (17) are respectively and vertically provided with a supporting plate (18), one end of the supporting plate (18) is connected with the bottom of the upper bottom plate (1) in a welding way, the other end of the supporting plate (18) is connected with the top of the lower bottom plate (2) in a welding way, a second screw rod (20) is horizontally arranged on the outer side of the U-shaped clamp body (17), one end of the second screw rod (20) penetrates through the supporting plate (18) to be connected with the outer wall of the U-shaped clamp body (17), the other end of the second screw rod (20) is provided with a second nut (19), and the second nut (19) is in threaded connection with the second screw rod (20).

5. The combined safety gear for the elevator as recited in claim 3, characterized in that each of the two sides of the gear body (13) close to the first holder (9) is provided with a first groove (21), and one end of the first holder (9) and one end of the second holder (11) close to the gear body (13) are respectively clamped in the first groove (21); and two sides of one surface of the wedge block (7), which is far away from the guide rail (3), are respectively provided with a second groove (22), and one ends of the first retainer (9) and the second retainer (11), which are close to the wedge block (7), are respectively clamped in the second grooves (22).

6. The combined safety gear for the elevator as claimed in claim 1, wherein a fixing plate (33) is vertically arranged on the top of the upper base plate (1), one end of the fixing plate (33) is connected with the upper base plate (1), and an automatic infusion device is arranged on one side of the upper base plate (1) close to the guide rail (3), and comprises:

the first connecting rod (23) is horizontally positioned on one side of the fixing plate (33), one end of the first connecting rod (23) is connected with the side wall of the fixing plate (33), the other end of the first connecting rod (23) is connected with the first motor (24), and the output end of the first motor (24) is coaxially provided with an incomplete gear (25);

the second connecting rod (26) is horizontally positioned on one side, close to the guide rail (3), of the fixing plate (33), one end of the second connecting rod (26) is connected with the side wall of the fixing plate (33), and the other end of the second connecting rod (26) is connected with the first fixing block (27);

the third connecting rod (28) is horizontally positioned below the second connecting rod (26), one end of the third connecting rod (28) is connected with the fixing plate (33), and the other end of the third connecting rod (28) is connected with a second fixing block (29);

the guide rail structure comprises a first rotating shaft (34), wherein the first rotating shaft (34) is vertically positioned on one side, close to the guide rail (3), of the fixing plate (33), one end of the first rotating shaft (34) sequentially penetrates through a first fixing block (27) and a second fixing block (29) and is coaxially provided with a first gear (35), the first gear (35) is meshed with the incomplete gear (25), a first circular plate (36) is coaxially arranged at the other end of the first rotating shaft (34), two first through holes (37) are symmetrically arranged on the first circular plate (36), a first circular tube (38) is arranged below each first through hole (37), and the top end of each first circular tube (38) is communicated with the first through hole (37);

first sleeve pipe (39), first sleeve pipe (39) are located first fixed block (27) top, first sleeve pipe (39) cover is established on first pivot (34), the one end of first sleeve pipe (39) is coaxial to be provided with second plectane (40), the symmetry is provided with two second through-holes (41) on second plectane (40), and two second through-holes (41) are located two respectively first pipe (38) below, two first pipe (38) lower extreme passes two respectively second through-hole (41), second plectane (40) below is vertical to be provided with two second pipe (42), two the one end of second pipe (42) respectively with second through-hole (41) intercommunication, the bottom of second pipe (42) is close to second plectane (40) centre of a circle department is provided with apron (43), apron (43) with second pipe (42) are articulated, an extension rod (44) is arranged on one side, close to the first rotating shaft (34), of the cover plate (43), and one end of the extension rod (44) is connected with the cover plate (43);

the first rotating shaft (34) is provided with two first limiting blocks (45), and the two first limiting blocks (45) are respectively positioned above and below the first fixing block (29);

the first sleeve (39) is provided with two third limiting blocks (46), a first circular ring (47) is clamped between the two third limiting blocks (46), the outer wall of the first circular ring (47) is vertically provided with a fourth connecting rod (48), one end of the fourth connecting rod (48) is connected with the first circular ring (47), the other end of the fourth connecting rod (48) is connected with the inner wall of a second circular ring (49), the second circular ring (49) is sleeved on the first sleeve (39), the bottom surface of the second circular ring (49) is composed of a first circular surface (50), a second circular surface (51) and two inclined surfaces (52), and the two inclined surfaces (52) are respectively located at two connecting positions of the first circular surface (50) and the second circular surface (51);

the liquid storage device (53) is located above the first through hole (37) of the first circular plate (36), a sixth connecting rod (69) is horizontally arranged on the outer wall of the liquid storage device (53), one end of the sixth connecting rod (69) is connected with the outer wall of the liquid storage device (53), and the other end of the sixth connecting rod (69) is connected with the side wall of the fixing plate (33).

7. The combination safety gear for elevators according to claim 6, wherein the automatic transfusion device further comprises:

the movable rod (30) penetrates through the first fixing block (27) and the second fixing block (29) in sequence in the vertical direction, a first limiting block (31) is arranged at the other end of the movable rod (30), the movable rod (30) can reciprocate up and down, a first rack (32) is vertically arranged on one side of the movable rod (30), the first rack (32) is located between the first fixing block (27) and the second fixing block (29), and the side wall, close to the first rotating shaft (34), of the first limiting block (31) is connected with the outer wall of the lower end of the fourth connecting rod (48);

the second motor (54) is connected with one surface, close to the guide rail (3), of the fixing plate (33), the second motor (54) is provided with a second gear (55) coaxially, and the second gear (55) is meshed with the first rack (32).

8. The combined safety gear for the elevator as claimed in claim 6, wherein a brush plate (56) in a vertical direction is disposed on a surface of the first fixing block (27) far away from the fixing plate (33), a U-shaped groove (57) is disposed on a top surface of the cover plate (43), one end of the U-shaped groove (57) is opened below the second circular tube (42), and the other end of the U-shaped groove (57) is opened toward the brush plate (56).

9. The combined safety gear for the elevator according to claim 6, wherein an annular groove (58) is formed above the inner wall of the first circular tube (38), a semicircular baffle (59) is arranged above the inner side of the first circular tube (38), a limit block (60) is arranged on the outer circumferential wall of the semicircular baffle (59), the limit block (60) is clamped in the annular groove (58), a second rotating shaft (61) is vertically arranged at the center of the bottom surface of the semicircular baffle (59), one end of the second rotating shaft (61) is connected with the bottom of the semicircular baffle (59), the other end of the second rotating shaft (61) is coaxially provided with a first bevel gear (62), the second rotating shaft (61) is further provided with a third fixing block (70), the third fixing block (70) is rotatably connected with the second rotating shaft (61), and a seventh connecting rod (71) is horizontally arranged on one side of the third fixing block (70), one end of the seventh connecting rod (71) is connected with the outer wall of the third fixed block (70), and the other end of the seventh connecting rod (71) is connected with the inner wall of the first round pipe (38); a fifth connecting rod (63) is horizontally arranged on the inner wall of the second circular tube (42), one end of the fifth connecting rod (63) is connected with the inner wall of the second circular tube (42), and a second rack (64) is vertically arranged at the other end of the fifth connecting rod (63); a third rotating shaft (65) is horizontally arranged on the inner wall, close to the fifth connecting rod (63), of the first circular pipe (38), one end of the third rotating shaft (65) is rotatably connected with the inner wall of the first circular pipe (38), a second bevel gear (66) is coaxially arranged at the other end of the third rotating shaft (65), the second bevel gear (66) is meshed with the first bevel gear (62), a third gear (67) is coaxially arranged on the third rotating shaft (65), and the third gear (67) is meshed with the second rack (64); a baffle (68) is vertically arranged in the liquid storage device (53).

10. The combined safety gear for the elevator according to claim 3, characterized in that the upper base plate (1) and the lower base plate (2) are respectively provided with a guide groove, both ends of the gear body (13) are positioned in the guide grooves, and the gear body (13) can move in the guide grooves.

Technical Field

The invention relates to the technical field of elevators, in particular to a combined safety tongs for an elevator.

Background

At present, the safety tongs matched with traction type elevator products in the elevator industry of China are complete in variety and different in structure and form. It is commonly used in traction type middle and low speed passenger elevators and freight elevators. Then, is a high-speed or ultra-high-speed elevator equipped with its applicable safety tongs? Up to now, the safety tongs used in high-speed or ultra-high-speed elevators in China are imported parts, and the price of the safety tongs is 10 times or more than that of the common safety tongs in China. Obviously, it is expensive. With the high-speed development of national economy, city construction is getting faster and faster, and high-speed or ultra-high-speed elevators are undoubtedly gradually spread all over the country. During the high-speed running of the elevator with large load capacity, when the elevator suddenly acts and stops due to faults or overspeed, the kinetic energy and the potential energy form huge impact capacity due to extremely short time in the braking process, so that the guide rail, the car and the like are damaged and deformed to different degrees. Meanwhile, the human body is easily damaged. In particular, in very high-speed operation, the destructive forces occurring during braking are very surprising if no reliable energy-consuming measures are available. Therefore, a safety gear is needed to prevent the damage to the car and the guide rail to the maximum extent.

Disclosure of Invention

The invention provides a combined safety gear for an elevator, which can prevent damage to a lift car and a guide rail to the maximum extent.

Therefore, the technical scheme adopted by the invention is that the combined safety gear for the elevator comprises the following components: the clamping device is arranged between the upper base plate and the lower base plate, and the guide rail sequentially penetrates through the upper base plate and the lower base plate.

Preferably, a first opening is arranged in the middle of the upper bottom plate, and a second opening is arranged in the middle of the lower bottom plate.

Preferably, the clamping device comprises:

the guide rail comprises a friction plate and a wedge block, wherein the friction plate and the wedge block are respectively vertically arranged on two sides of the guide rail, the friction plate is respectively vertically arranged on two sides of the guide rail, the wedge block is vertically arranged on one side, away from the guide rail, of the friction plate, one side of the wedge block is connected with the friction plate, a lifting rod is arranged at the top end of the wedge block, one end of the lifting rod is hinged with the upper end of the wedge block, and the other end of the lifting rod extends out of the first;

the wedge block is provided with a guide rail, the wedge block is provided with a first retaining frame and a second retaining frame, the guide rail is provided with a guide rail, the wedge block is arranged on the guide rail, the guide rail is provided with a guide rail, the wedge block is provided with three guide rails, the;

the clamp body is vertically positioned on one side, away from the guide rail, of the mandrel, a first screw rod is vertically arranged at the bottom of the clamp body, one end of the first screw rod is connected with the clamp body, a compression spring is sleeved on the first screw rod, one end of the compression spring is in contact with the bottom surface of the first retainer, the other end of the first screw rod extends out of the second opening and is in threaded connection with the first nut, and the other end of the compression spring is in contact with the bottom surface of the clamp body.

Preferably, a U-shaped clamp body is arranged between the upper base plate and the lower base plate, two sides of the U-shaped clamp body are respectively sleeved on the outer sides of the two clamp bodies, supporting plates are respectively vertically arranged on the outer sides of the two sides of the U-shaped clamp body, one end of each supporting plate is connected with the bottom of the upper base plate in a welding mode, the other end of each supporting plate is connected with the top of the lower base plate in a welding mode, a second screw rod is horizontally arranged on the outer side of the U-shaped clamp body, one end of each second screw rod penetrates through the corresponding supporting plate to be connected with the outer wall of the U-shaped clamp body, and a second nut is arranged at the other end of each second screw rod.

Preferably, two sides of each forceps body, which are close to the first holder, are provided with first grooves, and one ends of the first holder and the second holder, which are close to the forceps bodies, are respectively clamped in the first grooves; and second grooves are respectively formed in two sides of one surface of the wedge block, which is far away from the guide rail, and one ends of the first retainer and the second retainer, which are close to the wedge block, are respectively clamped in the second grooves.

Preferably, the vertical fixed plate that is provided with in upper plate top, fixed plate one end with the upper plate is connected, the upper plate is close to one side of guide rail is provided with automatic infusion set, automatic infusion set includes:

the first connecting rod is horizontally positioned on one side of the fixed plate, one end of the first connecting rod is connected with the side wall of the fixed plate, the other end of the first connecting rod is connected with a first motor, and an incomplete gear is coaxially arranged at the output end of the first motor;

the second connecting rod is horizontally positioned on one side, close to the guide rail, of the fixing plate, one end of the second connecting rod is connected with the side wall of the fixing plate, and the other end of the second connecting rod is connected with the first fixing block;

the third connecting rod is horizontally positioned below the second connecting rod, one end of the third connecting rod is connected with the fixing plate, and the other end of the third connecting rod is connected with the second fixing block;

the first rotating shaft is vertically positioned on one side, close to the guide rail, of the fixing plate, one end of the first rotating shaft sequentially penetrates through the first fixing block and the second fixing block and is coaxially provided with a first gear, the first gear is meshed with the incomplete gear, a first circular plate is coaxially arranged at the other end of the first rotating shaft, two first through holes are symmetrically formed in the first circular plate, a first circular pipe is arranged below each first through hole, and the top end of each first circular pipe is communicated with the first through hole;

the first sleeve is positioned above the first fixing block and sleeved on the first rotating shaft, a second circular plate is coaxially arranged at one end of the first sleeve, two second through holes are symmetrically formed in the second circular plate and are respectively positioned below the two first circular tubes, the lower ends of the two first circular tubes penetrate through the two second through holes respectively, the two second circular tubes are vertically arranged below the second circular plate, one ends of the two second circular tubes are respectively communicated with the second through holes, a cover plate is arranged at the position, close to the circle center of the second circular plate, of the bottom end of each second circular tube, the cover plate is hinged to the second circular tubes, an extension rod is arranged on one side, close to the first rotating shaft, of the cover plate, and one end of the extension rod is connected with the cover plate;

the first rotating shaft is provided with two first limiting blocks, and the two first limiting blocks are respectively positioned above and below the first fixing block;

the first sleeve is provided with two first limiting blocks, a first circular ring is clamped between the two first limiting blocks, the outer wall of the first circular ring is vertically provided with a first connecting rod, one end of the first connecting rod is connected with the first circular ring, the other end of the first connecting rod is connected with the inner wall of the first circular ring, the first circular ring is sleeved on the first sleeve, the bottom surface of the first circular ring is composed of a first circular ring surface, a second circular ring surface and two inclined surfaces, and the two inclined surfaces are respectively positioned at two connecting positions of the first circular ring surface and the second circular ring surface;

the liquid storage device is located above the first through hole of the first circular plate, a sixth connecting rod is horizontally arranged on the outer wall of the liquid storage device, one end of the sixth connecting rod is connected with the outer wall of the liquid storage device, and the other end of the sixth connecting rod is connected with the side wall of the fixing plate.

Preferably, the automatic infusion device further comprises:

the first fixing block and the second fixing block sequentially penetrate through one end of the moving rod in the vertical direction, a first limiting block is arranged at the other end of the moving rod, the moving rod can reciprocate up and down, a first rack is vertically arranged on one side of the moving rod, the first rack is located between the first fixing block and the second fixing block, and the side wall, close to the first rotating shaft, of the first limiting block is connected with the outer wall of the lower end of the fourth connecting rod;

the second motor is connected with one surface, close to the guide rail, of the fixing plate, a second gear is coaxially arranged at the output end of the second motor, and the second gear is meshed with the first rack.

Preferably, one surface of the first fixing block, which is far away from the fixing plate, is provided with a brush plate in the vertical direction.

Preferably, the top surface of the cover plate is provided with a U-shaped groove body, one end opening of the U-shaped groove body is located below the second round pipe, and the other end opening of the U-shaped groove body faces the brush plate.

Preferably, an annular groove is formed in the upper portion of the inner wall of the first circular tube, a semicircular baffle is arranged in the upper portion of the first circular tube, a limiting block is arranged on the outer circumferential wall of the semicircular baffle in a clamped mode, a second rotating shaft is vertically arranged at the center of the circle of the bottom surface of the semicircular baffle, one end of the second rotating shaft is connected with the bottom of the semicircular baffle, a first bevel gear is coaxially arranged at the other end of the second rotating shaft, a third fixing block is further arranged on the second rotating shaft and is rotatably connected with the second rotating shaft, a seventh connecting rod is horizontally arranged on one side of the third fixing block, one end of the seventh connecting rod is connected with the outer wall of the third fixing block, and the other end of the seventh connecting rod is connected with the inner wall of the first circular tube; a fifth connecting rod is horizontally arranged on the inner wall of the second circular tube, one end of the fifth connecting rod is connected with the inner wall of the second circular tube, and a second rack is vertically arranged at the other end of the fifth connecting rod; a third rotating shaft is horizontally arranged on the inner wall, close to the fifth connecting rod, of the first round pipe, one end of the third rotating shaft is rotatably connected with the inner wall of the first round pipe, a second bevel gear is coaxially arranged at the other end of the third rotating shaft, the second bevel gear is meshed with the first bevel gear, a third gear is also coaxially arranged on the third rotating shaft, and the third gear is meshed with the second rack; a baffle is vertically arranged in the infusion apparatus.

Preferably, the upper base plate and the lower base plate are respectively provided with a guide groove, two ends of the pliers body are positioned in the guide grooves, and the pliers body can move in the guide grooves.

The technical scheme of the invention has the following advantages: the invention provides a combined safety gear for an elevator, which comprises: the clamping device comprises an upper base plate, a lower base plate, a clamping device and a guide rail, wherein the upper base plate is horizontally positioned above the lower base plate, the clamping device is positioned between the upper base plate and the lower base plate, the top of the clamping device is connected with the bottom of the upper base plate, the bottom of the clamping device is connected with the top of the lower base plate, and the guide rail sequentially penetrates through the upper base plate, the clamping device and the lower base plate. Thereby preventing damage to the car and the guide rail to the maximum extent.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.

The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a front view of the structure of the present invention;

FIG. 2 is a top view of the structure of the present invention;

FIG. 3 is a top cross-sectional view of the mandrel structure;

FIG. 4 is a front cross-sectional view of the mandrel construction;

FIG. 5 is a schematic view of an automatic infusion device;

FIG. 6 is a schematic view of a second ring structure;

FIG. 7 is a schematic view of a U-shaped groove structure;

FIG. 8 is a schematic view of the inner structure of the first round tube;

fig. 9 is a top view of the first tube.

Wherein, 1-an upper base plate, 2-a lower base plate, 3-a guide rail, 4-a first opening, 5-a second opening, 6-a friction plate, 7-a wedge block, 8-a lifting rod, 9-a first holder, 10-a mandrel, 11-a second holder, 12-a thin-shell spring set, 13-a clamp body, 14-a first screw rod, 15-a compression spring, 16-a first nut, 17-a U-shaped clamp body, 18-a support plate, 19-a second nut, 20-a second screw rod, 21-a first groove, 22-a second groove, 23-a first connecting rod, 24-a first motor, 25-an incomplete gear, 26-a second connecting rod, 27-a first fixed block, 28-a third connecting rod and 29-a second fixed block, 30-a moving rod, 31-a first stopper, 32-a first rack, 33-a fixed plate, 34-a first rotating shaft, 35-a first gear, 36-a first circular plate, 37-a first through hole, 38-a first circular tube, 39-a first sleeve, 40-a second circular plate, 41-a second through hole, 42-a second circular tube, 43-a cover plate, 44-an extension rod, 45-a second stopper, 46-a third stopper, 47-a first circular ring, 48-a fourth connecting rod, 49-a second circular ring, 50-a first circular ring, 51-a second circular ring, 52-an inclined plane, 53-a reservoir, 54-a second motor, 55-a second gear, 56-a brush plate, 57-a U-shaped groove body, 58-an annular groove, 59-a semicircular baffle, 60-a limiting block, 61-a second rotating shaft, 62-a first bevel gear, 63-a fifth connecting rod, 64-a second rack, 65-a third rotating shaft, 66-a second bevel gear, 67-a third gear, 68-a baffle, 69-a sixth connecting rod, 70-a third fixing block and 71-a seventh connecting rod.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

As shown in fig. 1 to 4, an embodiment of the present invention provides a combined safety gear for an elevator, including: the device comprises an upper base plate 1, a lower base plate 2, a clamping device and a guide rail 3, wherein the upper base plate 1 is horizontally arranged above the lower base plate 2, the upper base plate 1 is connected with the lower base plate 2 through a supporting plate 18 in a welding mode, the clamping device is arranged between the upper base plate 1 and the lower base plate 2, and the guide rail 3 sequentially penetrates through the upper base plate 1 and the lower base plate 2. Fig. 1 shows a state in which the safety gear is stopped on the guide rail when the safety gear is operated.

The middle of the upper bottom plate 1 is provided with a first opening 4, and the middle of the lower bottom plate 2 is provided with a second opening 5.

The working principle and the beneficial effects of the technical scheme are as follows: the clamping device is arranged between the upper bottom plate 1 and the lower bottom plate 2 and rubs with the guide rail 3 through the clamping device, so that the aim of buffering energy consumption is achieved, and the damage to the lift car and the guide rail is prevented to the maximum extent.

In one embodiment, the clamping device comprises:

the safety clamp comprises a friction plate 6 and a wedge block 7, wherein the friction plate 6 and the wedge block 7 are respectively vertically arranged on two sides of a guide rail 3, the wedge block 7 is vertically arranged on one side, away from the guide rail 3, of the friction plate 6, one side of the wedge block 7 is connected with the friction plate 6, a lifting rod 8 is arranged at the top end of the wedge block 7, one end of the lifting rod 8 is hinged with the upper end of the wedge block 7, the other end of the lifting rod 8 extends out of a first opening 4, and the lifting rod 8 is lifted through a safety clamp linkage device;

the wedge block 7 is provided with three mandrels 10 in the vertical direction, the side, far away from the guide rail 3, of the wedge block 7 is evenly and horizontally provided with three mandrels 10, two ends of each mandrel 10 are vertically and symmetrically provided with a first retainer 9 and a second retainer 11, one end of each mandrel 10 is connected with the first retainer 9, the other end of each mandrel 10 is connected with the second retainer 11, and each mandrel 10 is sleeved with a thin-shell spring group 12;

the clamp body 13 is vertically positioned on one side, away from the guide rail 3, of the mandrel 10, a first screw 14 is vertically arranged at the bottom of the clamp body 13, one end of the first screw 14 is connected with the clamp body 13, a compression spring 15 is sleeved on the first screw 14, one end of the compression spring 15 is in contact with the bottom surface of the first holding frame 9, the other end of the first screw 14 extends out of the second opening 5 to be in threaded connection with a first nut 16, and the other end of the compression spring 15 is in contact with the bottom surface of the clamp body 13.

The improved structure of the clamp comprises an upper base plate 1, a lower base plate 2 and a U-shaped clamp body 17, wherein the U-shaped clamp body 17 is arranged between the upper base plate 1 and the lower base plate 2, two sides of the U-shaped clamp body 17 are respectively sleeved on the outer sides of the two clamp bodies 13, supporting plates 18 are respectively vertically arranged on the outer sides of the two sides of the U-shaped clamp body 17, one end of each supporting plate 18 is connected with the bottom of the upper base plate 1 in a welding mode, the other end of each supporting plate 18 is connected with the top of the lower base plate 2 in a welding mode, a second screw rod 20 is horizontally arranged on the outer side of the U-shaped clamp body 17, one end of each second screw rod 20 penetrates through the corresponding supporting plate 18 to be connected with the outer.

The working principle and the beneficial effects of the technical scheme are as follows: when the lifting rod 8 is lifted upwards, the wedge block 7 is driven to move upwards, so that the friction plate 6 is tightly pressed on the working surface of the guide rail 3, the first retainer 9 and the second retainer 11 are driven to ascend, and meanwhile, the thin-shell spring group 12 is driven to roll or slide upwards along the inclined surfaces of the wedge block 7 and the clamp body 13 under the constraint of the mandrel 10; the compression spring 15 is compressed by the upward first retainer 9 and the upward second retainer 11, so that the upward lifting force of the lifting rod 8 has a preset value to prevent false operation of the safety gear; the two side caliper bodies 13 are positioned between the upper base plate 1 and the lower base plate 2, when the wedge 7 moves upwards, the compression caliper body 13 slightly moves towards two sides due to the force component, when the wedge 7 moves, the compression caliper body 13 is in rigid contact with the U-shaped caliper body 17, so that the compression caliper body is subjected to pressure or impact, and the energy generated by the residual part of the lateral force is consumed. In addition, since the compression spring 15 is loosely fitted on the first screw 14, the wedge 7 is returned together with the compression spring 15. At the moment, a bilateral gap of 4-6 mm is left between the friction plate 6 and the surface of the guide rail 3, and the bilateral gap is a parameter which must be ensured in the installation process; the thin-shell spring group 12 is formed by combining a plurality of thin-wall cylindrical cylinders with the thickness delta, generally 2-3, and when each thin-wall cylindrical cylinder is combined, gaps with the thickness of 0-2 mm are left, wherein the values are determined by design parameters of different models. The thin shell spring package 12 is similar to an overlapping leaf spring in its radially stressed configuration, but the curvature radius of the structure is smaller than that of the overlapping leaf spring commonly used in automobiles. Because the stress of the thin shell spring group 12 shows a nonlinear characteristic, under the action of braking force, a plurality of groups of springs of the type are compressed and deformed, so that most of the generated energy is consumed on the deformation energy, and the aim of buffering and consuming energy is fulfilled, wherein the thin shell spring group 12 is made of the following two materials: firstly, selecting an alloy material with high elastic modulus; secondly, selecting a high-toughness and high-strength graphene synthetic material; the U-shaped clamp body 17 is used as a common safety clamp as an important element and also used for secondary energy distribution and consumption so as to prevent the lift car and the guide rail 3 from bearing partial energy during action, the overall elastic modulus of the U-shaped clamp body is large enough, the energy bearing of the U-shaped clamp body is controlled to be about 1% during the action of the safety clamp under light load and high speed generally, but the U-shaped clamp body needs to bear about 20% of secondary energy under heavy load and ultrahigh speed; in conclusion, the compression device has the characteristics of reliable action, energy consumption and shock absorption and high cost performance, is suitable for high-speed and ultrahigh-speed elevators, and is matched with safety tongs of the high-speed and ultrahigh-speed elevators.

In one embodiment, each of the forceps bodies 13 is provided with a first groove 21 on both sides close to the first holder 9, and one ends of the first holder 9 and the second holder 11 close to the forceps bodies 13 are respectively clamped in the first grooves 21; two sides of one surface of the wedge 7, which is far away from the guide rail 3, are respectively provided with a second groove 22, and one ends of the first retainer 9 and the second retainer 11, which are close to the wedge 7, are respectively clamped in the second grooves 22.

The working principle and the beneficial effects of the technical scheme are as follows: the first groove 21 and the second groove 22 play a role in limiting and guiding the caliper body 13, the first holder 9 and the second holder 11.

As shown in fig. 5-7, in one embodiment, a fixing plate 33 is vertically disposed on the top of the upper base plate 1, one end of the fixing plate 33 is connected to the upper base plate 1, and an automatic infusion device is disposed on one side of the upper base plate 1 close to the guide rail 3, and the automatic infusion device includes:

the first connecting rod 23 is horizontally positioned on one side of the fixed plate 33, one end of the first connecting rod 23 is connected with the side wall of the fixed plate 33, the other end of the first connecting rod 23 is connected with the first motor 24, and the output end of the first motor 24 is coaxially provided with an incomplete gear 25;

the second connecting rod 26 is horizontally positioned on one side of the fixed plate 33 close to the guide rail 3, one end of the second connecting rod 26 is connected with the side wall of the fixed plate 33, and the other end of the second connecting rod 26 is connected with the first fixed block 27;

the third connecting rod 28 is horizontally positioned below the second connecting rod 26, one end of the third connecting rod 28 is connected with the fixing plate 33, and the other end of the third connecting rod 28 is connected with a second fixing block 29;

the first rotating shaft 34 is vertically positioned on one side, close to the guide rail 3, of the fixed plate 33, one end of the first rotating shaft 34 sequentially penetrates through the first fixed block 27 and the second fixed block 29 and is coaxially provided with a first gear 35, the first gear 35 is meshed with the incomplete gear 25, a first circular plate 36 is coaxially arranged at the other end of the first rotating shaft 34, two first through holes 37 are symmetrically arranged on the first circular plate 36, a first circular pipe 38 is arranged below each first through hole 37, and the top end of each first circular pipe 38 is communicated with the first through hole 37;

a first sleeve 39, wherein the first sleeve 39 is positioned above the first fixing block 27, the first sleeve 39 is sleeved on the first rotating shaft 34, a second circular plate 40 is coaxially arranged at one end of the first sleeve 39, two second through holes 41 are symmetrically arranged on the second circular plate 40, the two second through holes 41 are respectively positioned below the two first circular tubes 38, the lower ends of the two first circular tubes 38 respectively penetrate through the two second through holes 41, two second circular tubes 42 are vertically arranged below the second circular plate 40, one ends of the two second circular tubes 42 are respectively communicated with the second through holes 41, the bottom end of the second circular tube 42 is provided with a cover plate 43 near the center of the second circular plate 40, the cover plate 43 is hinged with the second circular tube 42, an extension rod 44 is arranged on one side of the cover plate 43 close to the first rotating shaft 34, and one end of the extension rod 44 is connected with the cover plate 43;

two second limiting blocks 45 are arranged on the first rotating shaft 34, and the two second limiting blocks 45 are respectively positioned above and below the second fixing block 29;

the first sleeve 39 is provided with two third limiting blocks 46, a first circular ring 47 is clamped between the two third limiting blocks 46, the outer wall of the first circular ring 47 is vertically provided with a fourth connecting rod 48, one end of the fourth connecting rod 48 is connected with the first circular ring 47, the other end of the fourth connecting rod 48 is connected with the inner wall of a second circular ring 49, the second circular ring 49 is sleeved on the first sleeve 39, the bottom surface of the second circular ring 49 is composed of a first ring surface 50, a second ring surface 51 and two inclined surfaces 52, and the two inclined surfaces 52 are respectively located at two connecting positions of the first ring surface 50 and the second ring surface 51;

a liquid reservoir 53, wherein the liquid reservoir 53 is located above the first through hole 37 of the first circular plate 36, a sixth connecting rod 69 is horizontally arranged on the outer wall of the liquid reservoir 53, one end of the sixth connecting rod 69 is connected with the outer wall of the liquid reservoir 53, and the other end of the sixth connecting rod 69 is connected with the side wall of the fixed plate 33;

the automatic infusion device further comprises:

the moving rod 30, one end of the moving rod 30 in the vertical direction sequentially penetrates through the first fixed block 27 and the second fixed block 29, the other end of the moving rod 30 is provided with a first limiting block 31, the moving rod 30 can reciprocate up and down, one side of the moving rod 30 is vertically provided with a first rack 32, the first rack 32 is located between the first fixed block 27 and the second fixed block 29, and the side wall of the first limiting block 31, which is close to the first rotating shaft 34, is connected with the outer wall of the lower end of the fourth connecting rod 48;

and the second motor 54 is connected with one surface, close to the guide rail 3, of the fixing plate 33, and a second gear 55 is coaxially arranged at the output end of the second motor 54, and the second gear 55 is meshed with the first rack 32.

The working principle and the beneficial effects of the technical scheme are as follows: when the first motor 24 is started, the output end of the first motor 24 drives the incomplete gear 25 to rotate, the incomplete gear 25 periodically drives the first gear 35 to rotate, the first gear 35 drives the first rotating shaft 34 to rotate, the first rotating shaft 34 drives the first circular plate 36 to rotate, so that the liquid in the liquid reservoir 53 flows into one of the first circular tubes 38 and sequentially reciprocates, the liquid reservoir 53 continuously replenishes the two first circular tubes 38, the first circular tube 38 is driven to rotate when the first circular plate 36 rotates, the second circular tube 42 rotates along with the first circular tube 38 because the first circular tube 38 is sleeved with the second circular tube 42, the second circular tube 42 rotates to drive the second circular plate 40 and the cover plate 43 to rotate, when the cover plate 43 rotates to be close to the second annular surface 51, the extension rod 44 contacts with the second annular surface 51, the lower end of the second circular tube 42 is opened, so as to infuse the guide rail 3, at this time, the other extension rod 44 contacts with the first annular surface 50, meanwhile, the liquid reservoir 53 replenishes the first circular tube 38 and sequentially reciprocates, so that automatic transfusion is continuously performed on the guide rail 3; the second motor 54 is started, the second motor 54 drives the second gear 55 to rotate, the second gear 55 enables the first rack 32 to reciprocate up and down, the first rack 32 drives the moving rod 30 to reciprocate up and down, the moving rod 30 drives the first limiting block 31 to reciprocate up and down, the first limiting block 31 drives the fourth connecting rod 48 to reciprocate up and down, the fourth connecting rod 48 drives the second circular ring 49 to reciprocate up and down, and the second circular ring 49 enables the second circular plate 40 to reciprocate up and down along the first rotating shaft 34, so that the liquid volumes in the first circular pipe 38 and the second circular pipe 42 are changed; through the scheme, the guide rail 3 is cleaned in real time or the machine oil lamp is dripped to work, so that the service life of the guide rail is prolonged, the conditions of aging, blocking and the like are not easy to occur, and the safety is improved.

In one embodiment, a vertically-oriented brush plate 56 is arranged on a side of the first fixing block 27 away from the fixing plate 33;

the top surface of the cover plate 43 is provided with a U-shaped groove body 57, an opening at one end of the U-shaped groove body 57 is located below the second circular tube 42, and an opening at the other end of the U-shaped groove body 57 faces the brush plate 56.

The working principle and the beneficial effects of the technical scheme are as follows: the liquid in the second circular tube 42 flows to the brush plate 56 by the guiding action of the U-shaped groove 57, and the brush plate 56 is used for cleaning the guide rail 3 or adding oil and the like.

In one embodiment, as shown in fig. 8-9, an annular groove 58 is formed above the inner wall of the first tube 38, a semicircular baffle 59 is arranged at the inner upper part of the first circular tube 38, a limit block 60 is arranged on the outer circumferential wall of the semicircular baffle 59, the limiting block 60 is clamped in the annular groove 58, a second rotating shaft 61 is vertically arranged at the center of the bottom surface of the semicircular baffle 59, one end of the second rotating shaft 61 is connected with the bottom of the semicircular baffle 59, the other end of the second rotating shaft 61 is coaxially provided with a first bevel gear 62, the second rotating shaft 61 is further provided with a third fixed block 70, the third fixed block 70 is rotatably connected with the second rotating shaft 61, a seventh connecting rod 71 is horizontally arranged on one side of the third fixed block 70, one end of the seventh connecting rod 71 is connected with the outer wall of the third fixed block 70, and the other end of the seventh connecting rod 71 is connected with the inner wall of the first round pipe 38; a fifth connecting rod 63 is horizontally arranged on the inner wall of the second circular tube 42, one end of the fifth connecting rod 63 is connected with the inner wall of the second circular tube 42, and a second rack 64 is vertically arranged at the other end of the fifth connecting rod 63; a third rotating shaft 65 is horizontally arranged on the inner wall, close to the fifth connecting rod 63, of the first circular pipe 38, one end of the third rotating shaft 65 is rotatably connected with the inner wall of the first circular pipe 38, a second bevel gear 66 is coaxially arranged at the other end of the third rotating shaft 65, the second bevel gear 66 is meshed with the first bevel gear 62, a third gear 67 is also coaxially arranged on the third rotating shaft 65, and the third gear 67 is meshed with the second rack 64; a baffle 68 is vertically disposed in the reservoir 53.

The working principle and the beneficial effects of the technical scheme are as follows: the baffle 68 divides the reservoir 53 into two parts, one containing detergent and the other containing engine oil, one of which can enter the second tube 42 through the semi-circular baffle 59, thereby realizing the dropping of the engine oil or the cleaning work of the guide rail 3, when the second round pipe 42 is lifted up by the second motor 54, the fifth connecting rod 63 drives the second rack 64 to move upwards, the second rack 64 drives the third gear 67 to rotate, the third gear 67 drives the third rotating shaft 65 to rotate, the third rotating shaft 65 rotates the second bevel gear 66, the second bevel gear 66 rotates the first bevel gear 62, the first bevel gear 62 rotates the second rotating shaft 61, the second rotating shaft 61 rotates the semicircular baffle 59 along the annular groove 58 under the action of the limiting block 60 and the annular groove 58, thereby changing the position of the semi-circular baffle 59 to select the liquid that can enter the first tube 38.

In one embodiment, the upper and lower plates 1 and 2 are respectively provided with a guide slot, the two ends of the clamp body 13 are positioned in the guide slots, the clamp body 13 can move in the guide slots, and when the wedge block moves upwards, the clamp body is compressed to move slightly along the guide slots towards the two sides due to the force component.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.