Compact electronic safety tongs

Abstract

The invention discloses a compact type electronic safety gear, relates to the technical field of elevator braking equipment, and solves the problems that an existing electronic safety gear is long and not compact enough in structure. The forceps comprise a forceps body; the roller is movably arranged in the roller path; the extrusion part is rotatably arranged on the clamp body, and the extrusion part can deflect towards the interior of the roller path and extrude the pin roller, so that the pin roller is gradually close to a guide rail of the elevator; a first elastic member; the electronic driving piece is used for pulling the first elastic piece, so that the first elastic piece is stressed to store energy; when the first elastic piece exerts pre-tightening force on the extrusion piece, the extrusion piece can deflect towards the interior of the roller path and extrude the pin roller, so that the pin roller gradually gets close to a guide rail of the elevator, and the pin roller can make friction contact with the guide rail and move upwards along the roller path. According to the electronic safety tongs, the extrusion part is pushed to deflect through energy release of the first elastic part, the pin roller is shifted, the pin roller makes contact with the guide rail, the stroke is shorter, and the overall length of the electronic safety tongs is greatly shortened.

Description

Technical Field

[0001] This invention relates to the field of elevator braking equipment technology, and in particular to a compact electronic safety clamp. Background Technology

[0002] The safety brake is a crucial safety component of elevator equipment, playing a vital role in ensuring safety in the event of elevator overspeed or loss of control. The safety brake mechanism operates by having the speed governor engage, causing the rope clamp to grip the speed governor rope. As the car descends, the speed governor rope pulls the safety brake linkage mechanism, activating the safety brake linkage and engaging the safety brake braking elements against the guide rails. This causes the safety brake braking elements on both sides of the guide rails to simultaneously clamp onto the rails, bringing the car to a complete stop.

[0003] Existing technologies, such as the electronic safety clamp disclosed in CN119898674A, employ a direct-push structure. The electromagnet is typically located at the lower end of the clamp body. During operation, the electromagnet directly pushes the roller, causing it to roll along the inclined surface of the clamp body and gradually approach and contact the guide rail. Under the influence of friction, the roller moves upwards, and the inclined surface, combined with the friction block, clamps the guide rail, thus braking. Because the electromagnet pushes the roller upwards from the bottom of the clamp body, the drive end of the electromagnet requires a long stroke, resulting in a very long overall length for the electronic safety clamp and a less compact clamp structure.

[0004] Alternatively, consider the power-off triggered safety clamp (announcement number CN222006951U). When the electromagnet loses power, the trigger spring resets, pulling the extension shaft upwards, which in turn pulls the lifting arm upwards. When the lifting arm is driven by the trigger mechanism, it transmits force to the rotating shaft via the swing arm, which in turn drives the limit roller to move along the inclined slide, finally clamping the guide rail. This design also addresses the issue of the safety clamp's overall length being relatively long and its structure not compact enough. Summary of the Invention

[0005] The purpose of this invention is to solve the above-mentioned problems by designing a compact electronic safety clamp, which solves the problems of existing electronic safety clamps being too long and not compact enough.

[0006] The technical solution of the present invention to achieve the above objectives is a compact electronic safety clamp, comprising: The clamp body has an active space for the elevator guide rail to pass through vertically and a roller track distributed on one side of the active space. The width of the roller track gradually decreases from bottom to top. The inner wall of the active space away from the roller track has a braking surface that rubs against the guide rail. Rollers, which are movably disposed within the raceway; An extrusion member is rotatably mounted on the clamp body. The extrusion member can deflect into the raceway and extrude the roller, causing the roller to gradually approach the elevator guide rail. A first elastic element is used to apply a preload force to one end of the extruder; An electronic drive unit is disposed on one side of the clamp body and is used to pull the first elastic element so that the first elastic element is subjected to force and stores energy. When the first elastic element applies a pre-tightening force to the extruder, the extruder can deflect into the raceway and squeeze the roller, so that the roller gradually approaches the elevator guide rail, and the roller can rub against the guide rail and move upward along the raceway.

[0007] Furthermore, it also includes: The second elastic element is used to apply a preload force to the end of the extruder away from the first elastic element in the direction of the raceway. A spring seat is connected to the driving member, and the first elastic member is disposed on the spring seat.

[0008] Furthermore, the electronic drive component is an electromagnet, the spring seat is connected to the iron core of the electromagnet, and the first elastic component is a helical spring, which is sleeved on the spring seat.

[0009] Furthermore, the extrusion member includes a body portion and a bent portion that bends relative to the body portion and extends into the mounting area. One end of the body portion away from the bent portion is rotatably connected to the clamp body. The bent portion is located on the extension path of the helical spring and can abut against the spring seat.

[0010] Furthermore, the clamp body has an inwardly recessed area along the thickness direction of the clamp body, the upper end of the body of the extruder is rotatably connected in the active area, and the extruder can move relative to the width direction of the clamp body. The upper part of the body extends into the raceway to form a protrusion for supporting the roller that moves above the extruder.

[0011] Furthermore, a waist-shaped groove or waist-shaped hole is provided in the active area, the waist-shaped groove or waist-shaped hole extends along the width direction of the clamp body, and the upper end of the body of the extruder is rotatably connected to the waist-shaped groove or waist-shaped hole by a pin.

[0012] Furthermore, a positioning post is provided in the active area, and the second elastic element is a torsion spring. The torsion spring is rotatably connected to the positioning post. One end of the torsion spring abuts against the inner wall of the active area, and the other end abuts against the side of the body part away from the roller, which is used to apply a pre-tightening force to the body part of the extrusion part, so that the protrusion of the body part extends into the raceway.

[0013] Furthermore, a bracket is provided on the outer side of the clamp body, and an installation area is formed between the bracket and the clamp body. The electronic drive component is located in the installation area and is mounted on the bracket.

[0014] Furthermore, a switch is provided on the lower side of the clamp body. The switch is fixedly installed on the outside of the bracket and away from the electronic drive component. It is used to control the power supply or power cut-off of the elevator control system. A trigger plate is connected to the spring seat. One end of the trigger plate is connected to the spring seat, and the other end is bent and extends downward. The trigger plate can trigger the contact of the switch during downward movement. The extension and retraction direction of the switch contact is perpendicular to the movement direction of the trigger plate.

[0015] Furthermore, the two ends of the bracket extend and close the upper and lower ends of the raceway, wherein the part of the bracket near the widest part of the raceway is bent inward to form a positioning part, so as to position the roller and prevent the roller from contacting the elevator guide rail.

[0016] Its advantages over existing technologies are: The safety clamp provided in this invention has advantages such as simple and compact structure. This compact electronic safety clamp uses an electronic drive to pull a first elastic element, causing the first elastic element to store energy. At this time, the squeezing element is not in contact with the roller, and the roller is not in contact with the elevator guide rail. When the first elastic element releases energy, it pushes the squeezing element to deflect counterclockwise relative to the clamp body, causing the roller to move closer to the elevator guide rail. The roller makes frictional contact with the guide rail and moves obliquely upward along the raceway, causing the entire safety clamp to move laterally. The braking surface on one side of the working space begins to make frictional contact with the guide rail. The guide rail is clamped by the roller and the braking surface, thereby braking the weightless elevator and improving safety and reliability. The energy release of the first elastic element pushes the squeezing element to deflect and cause the roller to contact the guide rail, thus shortening the stroke and greatly reducing the overall length of the electronic safety clamp.

[0017] As the roller moves upward, it gradually contacts and presses against the protrusion of the extruder, causing the extruder to move relative to the clamp towards the side where the torsion spring is located. At this time, the torsion spring stores energy. When the roller moves above the extruder, the torsion spring releases its energy, pushing the extruder back to its original position. The protrusion of the extruder then re-enters the raceway, providing support for the roller and preventing it from falling downward.

[0018] When the spring seat moves downward, it will cause the trigger plate to move downward. The trigger plate will press the switch contacts laterally, causing the contacts to retract inward, thereby triggering the switch. The switch will directly cut off the power to the elevator's control system.

[0019] The direction of movement of the trigger plate is perpendicular to the direction of extension and retraction of the switch contacts. The trigger plate cannot move laterally, so the side of the trigger plate will block the switch contacts, preventing the switch contacts from rebounding and keeping the elevator control system in a de-energized state. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the compact electronic safety clamp; Figure 2 This is a schematic diagram of the compact electronic safety clamp when removing the cover plate; Figure 3 This is a schematic diagram of the clamp body in a compact electronic safety clamp; Figure 4 This is a structural diagram of the extrusion component in a compact electronic safety clamp; Figure 5 This is a schematic diagram of the compact electronic safety clamp in its initial state when engaged with the guide rail; Figure 6 This is a schematic diagram showing the engagement of the extrusion component with the guide rail when the roller begins to move in the compact electronic safety clamp. Figure 7 This is a schematic diagram showing the protrusion of the roller extrusion component in a compact electronic safety clamp when it mates with the guide rail. Figure 8 This is a schematic diagram showing the movement of the rollers in the compact electronic safety clamp as they move above the extrusion piece and engage with the guide rail. Figure 9 This is a schematic diagram of the rollers and brake surfaces clamping the guide rail in a compact electronic safety clamp.

[0021] In the diagram, 1. Clamp body; 101. Activity space; 1011. Braking surface; 102. Raceway; 103. Activity area; 1031. Waist-shaped hole; 2. Extruded part; 201. Body part; 2011. Protrusion; 202. Bending part; 3. Roller; 4. Electromagnet; 5. Helical spring; 6. Spring seat; 7. Trigger plate; 8. Switch; 801. Contact; 9. Cover plate; 10. Bracket; 1001. Positioning part; 11. Torsion spring; 12. Positioning pin; 13. Guide rail. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0023] A preferred embodiment of the present invention provides a compact electronic safety clamp that shortens the driving stroke of the electromagnet 4, making the overall length of the electronic safety clamp shorter and the structure more compact.

[0024] For details, see Figures 1-2 The compact electronic safety clamp mainly includes a clamp body 1, an electromagnet 4, a switch 8, a bracket 10, a roller 3, a pressing component 2, a first elastic component, a second elastic component, a spring seat 6, a trigger plate 7, and other components.

[0025] See Figure 3 The clamp body 1 is a cubic structure, integrally machined. A large groove is located on the front of the clamp body 1, forming an active space 101, a raceway 102, and an active area 103. The active area 103 and the active space 101 are located on the left and right sides of the raceway 102, respectively, and are connected to the raceway 102. The depth of the active space 101 is greater than the depth of the raceway 102, and the depth of the raceway 102 is greater than the depth of the active area 103.

[0026] The width of the roller track 102 gradually decreases from bottom to top, giving it a wedge-shaped overall shape. The side of the roller track 102 closest to the activity area 103 has an inclined surface, and the roller 3 rolls along this inclined surface, gradually approaching the elevator guide rail 13 in the activity space 101.

[0027] The diameter of roller 3 must be smaller than the width of the widest part of raceway 102 to prevent roller 3 from contacting elevator guide rail 13 when it is at the bottom of raceway 102. The diameter of roller 3 must be larger than the width of the narrowest part of raceway 102 so that raceway 102 can contact elevator guide rail 13.

[0028] The movable space 101 on the clamp body 1 is vertically continuous, so that the elevator guide rail 13 can pass through the movable space 101 vertically. The width of the movable space 101 is slightly larger than the width of the elevator guide rail 13, so that the clamp body 1 can move laterally relative to the guide rail 13.

[0029] Located on the opposite side of the raceway 102, there is a braking surface 1011 on the inner wall of the movable space 101, which is a friction surface. As the roller 3 rolls upward along the raceway 102, the roller 3 will gradually approach the guide rail 13 under the action of the inclined surface, and finally the roller 3 and the braking surface 1011 cooperate to clamp the guide rail 13.

[0030] like Figure 1 As shown, the bracket 10 is installed on the outside of the clamp body 1. The bracket 10 is a U-shaped structure formed by bending a long plate. The two ends of the bracket 10 are fixedly connected to the upper and lower sides of the clamp body 1 by screws or bolts. The two ends of the bracket 10 extend forward and block the upper and lower ends of the raceway 102 to confine the roller 3 within the raceway 102.

[0031] See Figure 2The lower end of the bracket 10 (i.e., the end closest to the widest part of the raceway 102) is bent inward into the raceway 102 to form a positioning part 1001. Under its own weight, the roller 3 will hang down at the widest part of the raceway 102 (i.e., the lower end of the raceway 102), and under the action of the inclined surface on the positioning part 1001, the roller 3 will move towards the side of the raceway 102 away from the guide rail 13, so that the safety clamp will not contact the guide rail 13 in the unlocked state, thus preventing the safety clamp from being accidentally triggered during normal use of the elevator.

[0032] See also Figure 2 The U-shaped bracket 10 and the outer side of the clamp body 1 form an installation area. The electromagnet 4, spring seat 6, first elastic element and trigger plate 7 are all located in this installation area.

[0033] Electromagnet 4 is vertically fixed to the upper side of bracket 10, serving as the driving force source for the electronic safety clamp. Electromagnet 4 includes a coil and an iron core, with the iron core inserted inside the coil. The lower end of the iron core is connected to spring seat 6 via screws. When the coil is energized, the iron core can move upwards.

[0034] In other implementations, electric cylinders, motors, or other similar devices can be used as the driving force source.

[0035] In this embodiment, the first elastic element is a helical spring 5, which is sleeved on the spring seat 6, and its upper and lower ends abut against the electromagnet 4 and the spring seat 6, respectively. When the iron core of the electromagnet 4 drives the spring seat 6 to move upward, the helical spring 5 is compressed and stores energy.

[0036] like Figure 4 As shown, the extrusion member 2 includes a body portion 201 and a bent portion 202. The bent portion 202 bends relative to the lower end of the body portion 201 and extends into the mounting area, giving the overall shape of the extrusion member 2 a V-shape. The end of the bent portion 202 away from the body portion 201 bends another 90° and extends in the thickness direction of the clamp body 1, blocking the extension path of the coil spring 5, or the movement path of the spring seat 6. The end of the bent portion 202 away from the body portion 201 abuts against the bottom of the spring seat 6.

[0037] The upper end of the body 201 has a protrusion 2011 that extends into the raceway 102. When the roller 3 moves above the extruder 2, the protrusion 2011 can support the roller 3.

[0038] A portion of the upper sidewall of the active area 103 of the clamp body 1 is recessed inward to form a clearance area, so that the protrusion 2011 can make way when the extruder 2 deflects.

[0039] See Figure 3An oblong groove is formed on the clamp body 1 within the active area 103. In other embodiments, an oblong hole 1031 may also be used. The oblong groove or oblong hole 1031 extends relative to the width direction of the clamp body 1 (i.e., the direction perpendicular to the length of the guide rail 13).

[0040] The waist-shaped groove is equipped with a pin. The lower end of the pin is inserted into the waist-shaped groove, and the upper end passes through the upper end of the body part 201 of the extruder 2. The extruder 2 can rotate relative to the clamp body 1 through the pin.

[0041] See Figure 2 In this embodiment, the second elastic element is a torsion spring 11. The torsion spring 11 is located on the side of the active area 103 near the electromagnet 4. The torsion spring 11 is rotatably connected to the positioning post 12 fixed in the active area 103. One end of the torsion spring 11 is close to the upper wall of the active area 103, and the other end is close to the side of the body part 201 of the extruder 2 away from the roller 3.

[0042] In other embodiments, the first and second elastic elements may also employ other elastic structures, not limited to the helical spring 5 and the torsion spring 11.

[0043] like Figure 1 , Figure 2 As shown, switch 8 is located on the lower side of clamp body 1 and is fixedly mounted on bracket 10. The extension and retraction direction of contact 801 of switch 8 is perpendicular to the movement direction of trigger plate 7. Switch 8 is electrically connected to the elevator control system.

[0044] One end of the trigger plate 7 is connected to the bottom of the spring seat 6, and the other end is bent at 90° and extends vertically downward for a certain length. As the helical spring 5 pushes the spring seat 6 downward, the trigger plate 7 also moves downward. The lower side of the trigger plate 7 gradually contacts the contact 801 of the switch 8. The front end of the contact 801 is spherical. As the trigger plate 7 moves downward, it contacts the spherical surface, causing the contact 801 of the switch 8 to retract inward. The switch 8 then directly cuts off power to the elevator's control system.

[0045] Since the trigger plate 7 moves vertically downwards, while the contact 801 of the switch 8 extends and retracts laterally, and their directions are perpendicular, the rebound force of the contact 801 of the switch 8 will not affect the movement of the trigger plate 7. Because the trigger plate 7 blocks the contact 801 of the switch 8 as it moves downwards, the contact 801 of the switch 8 remains in a retracted state, and the switch 8 will not energize the elevator's control system.

[0046] If the direction of movement of the trigger plate 7 is consistent with the direction of extension and retraction of the contact 801 of the switch 8, that is, the direction of extension and retraction of the contact 801 of the switch 8 is also vertical, when the trigger plate 7 moves downward, it directly presses down the contact 801 of the switch 8, and the rebound force of the contact 801 of the switch 8 may push the trigger plate 7 upward.

[0047] A clearance hole is provided at a corresponding position on the bracket 10 so that the trigger plate 7 can pass through the clearance hole and contact the contact 801 of the switch 8 when it moves downward.

[0048] The trigger plate 7 has a round hole at the connection point with the spring seat 6; this round hole is a countersunk hole. The spring seat 6 and the trigger plate 7 are fixedly connected to the iron core by countersunk bolts, the heads of which are hidden in the countersunk hole.

[0049] See Figure 1 A cover plate 9 is provided on the front of the clamp body 1. The cover plate 9 is fixedly installed on the clamp body 1 by screws. The cover plate 9 covers the movable area 103 and the raceway 102 on the clamp body 1 to enclose the extrusion member 2, the torsion spring 11 and the roller 3 in the movable area 103 and the raceway 102.

[0050] The cover plate 9 has a waist-shaped hole, and the upper end of the pin that is rotatably connected to the extruder 2 passes through the waist-shaped hole. The waist-shaped hole matches the waist-shaped groove or waist-shaped hole on the clamp body 1, which guides and limits the lateral movement of the extruder 2.

[0051] like Figures 5-9 As shown, when the elevator overspeeds, the electromagnet 4 loses power, and the helical spring 5, which is in an energy storage state, extends and releases energy. The helical spring 5 pushes the iron core of the electromagnet 4 and the spring seat 6 connected to the iron core downwards, which in turn pushes the pressing member 2 to deflect towards the side where the roller 3 is located, that is, to rotate counterclockwise. At the same time, when the body part 201 of the pressing member 2 deflects, it compresses the torsion spring 11, and the torsion spring 11 begins to store energy.

[0052] The side of the body 201 of the extrusion part 2 will approach the roller 3 and push the roller 3 closer to the elevator guide rail 13. The roller 3 begins to make frictional contact with the elevator guide rail 13. Driven by the guide rail 13, the roller 3 begins to move obliquely upward along the raceway 102. Under the action of the inclined surface of the raceway 102, the roller 3 continues to approach the guide rail 13, causing the safety clamp as a whole to begin to move laterally to the left. The braking surface 1011 on one side of the active space 101 gradually makes frictional contact with the other side of the guide rail 13.

[0053] When the roller 3 moves obliquely upward, it contacts the protrusion 2011 of the extrusion member 2 and squeezes the protrusion 2011, causing the extrusion member 2 to move to the left (i.e. closer to the torsion spring 11) relative to the width direction of the clamp body 1 through the pin and the waist groove. The extrusion member 2 further squeezes the torsion spring 11, and the torsion spring 11 continues to store energy.

[0054] When the roller 3 moves above the extruder 2 and stops extruding the protrusion 2011, the torsion spring 11 releases energy, pushing the extruder 2 to the right (i.e. away from the torsion spring 11). The protrusion 2011 of the extruder 2 re-enters the raceway 102, supporting the roller 3 and preventing it from falling to the lower end of the raceway 102 due to insufficient contact between the roller 3 and the guide rail 13 because the roller 3 has not moved to the correct position.

[0055] The protrusion 2011 of the extrusion part 2 supports the bottom of the roller 3. During the continuous frictional contact between the roller 3 and the guide rail 13, the roller 3 continues to move obliquely upward until the roller 3 and the braking surface 1011 are in close contact with the guide rail 13, clamping the guide rail 13 and braking the elevator.

[0056] When the brake is released, the electromagnet 4 of the safety clamp is energized, the spring seat 6 moves upward, and the helical spring 5 is compressed again to store energy. The torsion spring 11, which has a certain preload on the extrusion piece 2, pushes the extrusion piece 2 to deflect clockwise, and the bent part 202 of the extrusion piece 2 comes into contact with the bottom of the spring seat 6 again.

[0057] As the elevator moves upward, roller 3 moves downward relative to clamp 1, and the entire safety clamp begins to gradually move laterally to the right. During this downward movement, roller 3 gradually contacts and presses against the protrusion 2011 of the pressing member 2, causing the pressing member 2 to move laterally to the left relative to clamp 1, and the torsion spring 11 stores energy. When roller 3 moves to the lower side of the raceway 102 and disengages from the pressing member 2, the torsion spring 11 releases its energy, the pressing member 2 moves laterally to the right, and the protrusion 2011 re-enters the raceway 102.

[0058] The above technical solutions only embody the preferred technical solutions of the present invention. Any modifications that may be made by those skilled in the art to certain parts thereof embody the principles of the present invention and fall within the protection scope of the present invention.

Claims

1. A compact electronic safety clamp, characterized in that, include: The clamp (1) has an active space (101) through which the elevator guide rail (13) passes vertically and a roller (102) distributed on one side of the active space (101). The width of the roller (102) gradually decreases from bottom to top. The inner wall of the active space (101) away from the roller (102) has a braking surface (1011) that rubs against the guide rail (13). Roller (3), the roller (3) is movably disposed within the raceway (102); The extrusion member (2) is rotatably mounted on the clamp body (1). The extrusion member (2) can deflect into the raceway (102) and extrude the roller (3), so that the roller (3) gradually approaches the elevator guide rail (13). A first elastic element is used to apply a preload force to one end of the extruder (2); An electronic drive unit is disposed on one side of the clamp body (1) and is used to pull the first elastic element so that the first elastic element is subjected to force and stores energy. When the first elastic element applies a pre-tightening force to the extruder (2), the extruder (2) can deflect into the raceway (102) and extrude the roller (3), so that the roller (3) gradually approaches the elevator guide rail (13), and the roller (3) can rub against the guide rail (13) and move upward along the raceway (102).

2. The compact electronic safety clamp according to claim 1, characterized in that, Also includes: The second elastic element is used to apply a preload force to the end of the extruder (2) away from the first elastic element in the direction of the raceway (102); A spring seat (6) is connected to the driving member, and the first elastic member is disposed on the spring seat (6).

3. The compact electronic safety clamp according to claim 2, characterized in that, The electronic drive component is an electromagnet (4), and the spring seat (6) is connected to the iron core of the electromagnet (4). The first elastic component is a helical spring (5), and the helical spring (5) is sleeved on the spring seat (6).

4. The compact electronic safety clamp according to claim 3, characterized in that, The extrusion member (2) includes a body part (201) and a bent part (202) that bends relative to the body part (201) and extends into the mounting area. One end of the body part (201) away from the bent part (202) is rotatably connected to the clamp body (1). The bent part (202) is located on the extension path of the helical spring (5) and can abut against the spring seat (6).

5. The compact electronic safety clamp according to claim 4, characterized in that, An active area (103) is formed by recessing inward along the thickness direction of the clamp body (1). The upper end of the body part (201) of the extruder (2) is rotatably connected in the active area (103), and the extruder (2) can move relative to the width direction of the clamp body (1). The upper part of the body part (201) extends into the raceway (102) to form a protrusion (2011) for supporting the roller (3) that moves above the extruder (2).

6. The compact electronic safety clamp according to claim 5, characterized in that, The active area (103) is provided with a waist-shaped groove or waist-shaped hole (1031), which extends along the width direction of the clamp body (1). The upper end of the body part (201) of the extruder (2) is rotatably connected to the waist-shaped groove or waist-shaped hole (1031) by a pin.

7. The compact electronic safety clamp according to claim 6, characterized in that, The active area (103) is provided with a positioning post (12). The second elastic element is a torsion spring (11). The torsion spring (11) is rotatably connected to the positioning post (12). One end of the torsion spring (11) abuts against the inner wall of the active area (103), and the other end abuts against the side of the body part (201) away from the roller (3). It is used to apply a pre-tightening force to the body part (201) of the extruder (2), so that the protrusion (2011) of the body part (201) extends into the raceway (102).

8. The compact electronic safety clamp according to claim 2, characterized in that, A bracket (10) is provided on the outside of the clamp body (1), and an installation area is formed between the bracket (10) and the clamp body (1). The electronic drive component is located in the installation area and is installed on the bracket (10).

9. The compact electronic safety clamp according to claim 8, characterized in that, A switch (8) is provided on the lower side of the clamp body (1). The switch (8) is fixedly installed on the outside of the bracket (10) and away from the electronic drive component. It is used to control the power supply or power cut-off of the elevator control system. A trigger plate (7) is connected to the spring seat (6). One end of the trigger plate (7) is connected to the spring seat (6), and the other end is bent and extends downward. The trigger plate (7) can trigger the contact (801) of the switch (8) during downward movement. The extension and retraction direction of the contact (801) of the switch (8) is perpendicular to the movement direction of the trigger plate (7).

10. The compact electronic safety clamp according to claim 8, characterized in that, The bracket (10) extends to both ends and closes the upper and lower ends of the raceway (102). The bracket (10) has a positioning part (1001) that bends into the raceway (102) at the widest end to position the roller (3) and prevent the roller (3) from contacting the elevator guide rail (13).

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