Fixed crown block stopping device

Abstract

The fixed crown block stopping device comprises a support, the bottom end of the support is fixedly installed on the surface of a crown block operation platform, the support comprises a bottom plate, a stand column and a first bolt sleeve, the bottom plate is installed on the surface of the crown block operation platform, the stand column is installed on the surface of the bottom plate, and the first bolt sleeve is installed on the side wall face of the stand column. A first sleeve is installed on the outer wall face of the stand column, the middle of a first elbow-shaped crank penetrates through the first sleeve, one end of the first elbow-shaped crank is an operation end, and the other end of the first elbow-shaped crank is connected with the upper end of a connecting rod. One end of a stud is fixed to the side wall of the stand column, a second elbow-shaped crank is sleeved with the stud, the other end of the stud fixes the second elbow-shaped crank, the other end of the second elbow-shaped crank is connected with the horseshoe-shaped car arrester, and a bolt penetrates through the first bolt sleeve and the first elbow-shaped crank. The car stopping device has the advantages that the car stopping device is switched between the working position and the non-working position through the lever principle, using is easy and efficient, labor intensity is relieved, operation is safe and reliable, and personal safety is guaranteed.

Description

Technical Field

[0001] This utility model relates to the technical field of overhead crane maintenance auxiliary equipment, specifically a fixed overhead crane blocking device. Background Technology

[0002] During overhead crane maintenance, various reasons, such as equipment failure or external forces, may cause accidental movement. According to the safety regulations for overhead crane maintenance, wheel stops should be installed on both sides of the crane's wheels to prevent movement due to misoperation or other unforeseen circumstances. These wheel stops effectively prevent the crane from moving, avoiding collisions with maintenance personnel and ensuring their safety. Overhead cranes need to maintain a stable position during maintenance. Wheel stops can fix the crane in the designated maintenance position, preventing displacement or shaking during maintenance and avoiding further damage to the equipment. This also facilitates the smooth progress of maintenance work, keeps the crane stable in a specific position, reduces the burden on the crane's braking system and other components during maintenance, avoids unnecessary wear and damage, and extends the equipment's service life. Therefore, with wheel stops fixing the crane's position, maintenance personnel do not need to readjust the crane's position each time they perform maintenance, saving time and effort and improving work efficiency.

[0003] The traditional approach in the existing technology is that maintenance personnel need to transport the separately manufactured movable car stopper to the crane operating platform via ladder each time. After the crane is repaired, it needs to be transported back to the ground by maintenance personnel. There are safety risks and high labor intensity for maintenance personnel to carry the movable car stopper up and down the ladder. Utility Model Content

[0004] The purpose of this utility model is to provide a fixed crane blocking device with reasonable structural design, novel concept, convenient operation, easy processing, low processing and manufacturing cost, more time-saving and labor-saving operation, which can complete the switching operation of the blocking device between the working position and the non-working position through the lever principle, is simple and efficient to use, reduces the labor intensity of operators, is safer and more reliable to operate, and fully guarantees the personal safety of operators.

[0005] This utility model discloses a fixed overhead crane stopping device, comprising a bracket, the bottom end of which is fixedly installed on the surface of the overhead crane operating platform. The bracket includes a base plate, a column, and a first pin sleeve. The base plate is fixedly installed on the surface of the overhead crane operating platform, and the column is fixedly installed on the surface of the base plate. The first pin sleeve is fixedly installed on the side wall of the column. A first sleeve is fixedly installed on the outer wall of the column, and the first sleeve is located near the top of the column. The middle part of a first elbow-shaped crank passes through the first sleeve. One end of the first elbow-shaped crank is the operating end, and the other end is connected to the upper end of a connecting rod through a first bolt and a first nut. The lower end of the connecting rod is connected to one end of a second elbow-shaped crank through a first bolt and a first nut. A stud is fixedly connected to one end of the column, and the second elbow-shaped crank is fitted inside the stud. The other end of the stud is fixed to the second elbow-shaped crank with a second nut. The other end of the second elbow-shaped crank is connected to a horseshoe-shaped stopping device through a second bolt and a third nut. A pin is provided through the first pin sleeve and the first elbow-shaped crank.

[0006] The first elbow-shaped crank includes an operating handle, a first connecting plate, a shaft, a retaining ring, a second pin sleeve, and a second connecting plate. The shaft passes through the first sleeve, and one end of the shaft is connected to the operating handle via the first connecting plate. The other end of the shaft is connected to the second connecting plate. Two retaining rings are sleeved on the shaft and are positioned on both sides of the first sleeve.

[0007] The second elbow crank includes an elbow connecting plate and a second sleeve. The second sleeve is fitted onto the outer wall of the stud. One side of the elbow connecting plate is connected to the horseshoe brake via a second bolt and a third nut. A spring washer and a flat washer are provided on the second bolt. The spring washer is in contact with the inner wall of the third nut.

[0008] The bracket, fixedly installed on the surface of the overhead crane platform via a base plate, is securely fixed. The uprights provide support for the entire anti-rollover device. The first sleeve is used to install the first elbow-shaped crank, providing a fulcrum for its movement. The stud, fitted with a second elbow-shaped crank, provides a fulcrum for its movement. A pin, penetrating the interior of both the first and second pin sleeves, is used to secure the first elbow-shaped crank, thereby securing the horseshoe-shaped anti-rollover device. This allows the horseshoe-shaped anti-rollover device to stand upright beside the overhead crane platform, effectively preventing it from falling and obstructing normal crane operation. This design addresses safety risks while ensuring operator safety. When the vehicle blocking device is in the working position, the pins can be removed from the first and second pin sleeves. The operating handle can then be moved downwards, causing the second connecting plate to rotate. This, in turn, rotates the connecting rod via the first bolt and the first nut. The connecting rod then rotates the elbow-shaped connecting plate and the horseshoe-shaped vehicle blocking device, causing the third plate on the bottom of the horseshoe-shaped vehicle blocking device to fit against the overhead crane track. The arc surface of the arc plate on the top of the device fits against the tread of the overhead crane wheel, thus preventing the overhead crane from moving. The operation is simple, safe, reliable, time-saving, and labor-saving, and it effectively protects the safety of operators.

[0009] When the vehicle is not in use, the operating handle on the first elbow crank can be pulled upwards. The operating handle rotates the second connecting plate, which in turn rotates the connecting rod through the first bolt and the first nut. The connecting rod then rotates the elbow connecting plate and the horseshoe-shaped vehicle stopper. The horseshoe-shaped vehicle stopper moves away from the overhead crane track and stands upright next to the overhead crane running platform. A pin is inserted into the first pin sleeve and the second pin sleeve to fix the first elbow crank, thereby fixing the horseshoe-shaped vehicle stopper and preventing it from rotating. The operation is safe, reliable, and convenient, and the operator can switch between non-working and working states as needed.

[0010] The aforementioned horseshoe-shaped vehicle stopper includes a first plate, an arc plate, a second plate, and a third plate. The first plate is attached to the elbow-shaped connecting plate and fixedly connected by a second bolt and a third nut. The arc plate is fixedly connected to the side wall of the first plate, the second plate is fixedly connected to the bottom surface of the arc plate, and the third plate is fixedly connected to the bottom surface of the second plate.

[0011] The horseshoe-shaped wheel stopper is used to fix the overhead crane wheels. It utilizes the first elbow-shaped crank, connecting rod and second elbow-shaped crank to form the operating end. Without the need for maintenance personnel to transport the movable wheel stopper, the lever principle formed by the first elbow-shaped crank, connecting rod and second elbow-shaped crank is used to switch the horseshoe-shaped wheel stopper between the working position and the non-working position. It can prevent the crane wheels from running during the crane maintenance and solve the daily storage problem of the horseshoe-shaped wheel stopper. It can effectively avoid the safety risks of operators carrying heavy loads up and down ladders and reduce the labor intensity of operators.

[0012] The pin passes through the first pin sleeve and the second pin sleeve.

[0013] The column sidewall is fixedly connected with a stiffening plate, and the bottom surface of the stiffening plate is fixedly connected to the surface of the base plate.

[0014] The beneficial effects of this utility model are:

[0015] 1) The bracket is fixedly installed on the surface of the overhead crane platform via a base plate, ensuring a secure installation. The uprights provide support for the entire anti-rollover device. The first sleeve is used to install the first elbow-shaped crank, providing a fulcrum for its movement. The stud is fitted with the second elbow-shaped crank, providing a fulcrum for its movement. The pin passes through the first and second pin sleeves, securing the first elbow-shaped crank and thus the horseshoe-shaped anti-rollover device. This allows the horseshoe-shaped anti-rollover device to stand upright beside the overhead crane platform, effectively preventing it from falling and obstructing the normal operation of the overhead crane. This design addresses safety risks while ensuring operator safety. When the vehicle blocking device is in the working position, the pin can be removed from the first and second pin sleeves. The operating handle can then be moved downwards, causing the second connecting plate to rotate. This, in turn, causes the connecting rod to rotate via the first bolt and the first nut. The connecting rod then rotates the elbow-shaped connecting plate and the horseshoe-shaped vehicle blocking device, causing the third plate on the bottom of the horseshoe-shaped vehicle blocking device to fit against the crane track. The arc surface of the arc plate on the top fits against the crane wheel tread, thus preventing the crane from moving. The operation is simple, safe, reliable, time-saving, and labor-saving, and it effectively protects the safety of operators.

[0016] 2) When the car is not in use, the operating handle on the first elbow crank can be pulled upwards. The operating handle drives the second connecting plate to rotate, which in turn drives the connecting rod to rotate through the first bolt and the first nut. The connecting rod drives the elbow connecting plate and the horseshoe-shaped car stop to rotate. The horseshoe-shaped car stop moves away from the overhead crane track and stands upright next to the overhead crane running platform. The first elbow crank is fixed by inserting a pin into the first pin sleeve and the second pin sleeve, thereby fixing the horseshoe-shaped car stop and preventing it from rotating. The operation is safe, reliable and convenient, and can be switched between non-working and working states as needed by the operator.

[0017] 3) The horseshoe-shaped wheel stop is used to fix the crane wheels. The operating end is formed by the first elbow-shaped crank, the connecting rod and the second elbow-shaped crank. Without the need for maintenance personnel to transport the movable wheel stop, the lever principle formed by the first elbow-shaped crank, the connecting rod and the second elbow-shaped crank is used to switch the horseshoe-shaped wheel stop between the working position and the non-working position. This not only prevents the crane wheels from running during crane maintenance, but also solves the problem of daily storage of the horseshoe-shaped wheel stop. It can effectively avoid the safety risks caused by operators carrying heavy loads up and down ladders, and reduce the labor intensity of operators.

[0018] 4) This vehicle blocking device has a reasonable structural design, novel concept, convenient operation, easy processing, low processing and manufacturing cost, and saves more time and effort. It can switch between working and non-working positions through the lever principle. It is simple and efficient to use, reduces the labor intensity of operators, and makes the operation safer and more reliable, fully ensuring the personal safety of operators. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 for Figure 1 Sectional view along direction A in the middle;

[0021] Figure 3 This is a schematic diagram of the structure of the present invention in the working position;

[0022] Figure 4 This is a schematic diagram of the structure of the present invention when it is in a non-working position.

[0023] In the diagram: 1. Bracket; 101. Base plate; 102. Rib plate; 103. Column; 104. First pin sleeve; 2. First sleeve; 3. First elbow crank; 301. Operating handle; 302. First connecting plate 2; 303. Shaft; 304. Fixing ring; 305. Second pin sleeve; 306. Second connecting plate; 4. Connecting rod; 5. Second elbow crank; 501. Elbow connecting plate; 502. Second sleeve; 6. Stud; 7. Horseshoe brake; 701. First plate; 702. Arc plate; 703. Second plate; 704. Third plate; 8. First bolt; 9. First nut; 10. Second nut; 11. Second bolt; 12. Third nut; 13. Spring washer; 14. Flat washer; 15. Pin; 16. Crane track. Detailed Implementation

[0024] Example 1.

[0025] The following will be combined with the appendix Figure 1-4 The present invention will be further described below.

[0026] This utility model includes a bracket 1, a base plate 101, a stiffening plate 102, a column 103, a first pin sleeve 104, a first sleeve 2, a first elbow-shaped crank 3, an operating handle 301, a first connecting plate 302, a shaft 303, a fixing ring 304, a second pin sleeve 305, a second connecting plate 306, a connecting rod 4, a second elbow-shaped crank 5, an elbow-shaped connecting plate 501, a second sleeve 502, a stud 6, a horseshoe-shaped wheel stopper 7, a first bolt 8, a first nut 9, a second nut 10, a second bolt 11, a third nut 12, a spring washer 13, a flat washer 14, a pin 15, and a crane track 16. Specifically, the bracket 1 is fixedly installed at its bottom end on the surface of the crane operating platform. The bracket 1 includes a base plate 101, a column 103, and a first pin sleeve 104. The base plate 101 is fixedly installed on the surface of the crane operating platform. A column 103 is fixedly installed, and a first pin sleeve 104 is fixedly installed on the side wall of the column 103. A first sleeve 2 is fixedly installed on the outer wall of the column 103, and the first sleeve 2 is located near the top of the column 103. The middle part of the first elbow-shaped crank 3 passes through the first sleeve 2. One end of the first elbow-shaped crank 3 is the operating end, and the other end is connected to the upper end of the connecting rod 4 through the first bolt 8 and the first nut 9. The lower end of the connecting rod 4 is connected to one end of the second elbow-shaped crank 5 through the first bolt 8 and the first nut 9. A stud 6 is fixedly connected to one end of the side wall of the column 103. The second elbow-shaped crank 5 is fitted inside the stud 6. The other end of the stud 6 is fixed to the second elbow-shaped crank 5 with the second nut 10. The other end of the second elbow-shaped crank 5 is connected to the horseshoe-shaped brake 7 through the second bolt 11 and the third nut 12. A pin 15 is provided through the first pin sleeve 104 and the first elbow-shaped crank 3.

[0027] The first elbow-shaped crank 3 includes an operating handle 301, a first connecting plate 302, a shaft 303, a retaining ring 304, a second pin sleeve 305, and a second connecting plate 306. The shaft 303 passes through the first sleeve 2. One end of the shaft 303 is connected to the operating handle 301 through the first connecting plate 302, and the other end of the shaft 303 is connected to the second connecting plate 306. Two retaining rings 304 are sleeved on the shaft 303 and are placed on both sides of the first sleeve 2.

[0028] The second elbow crank 5 includes an elbow connecting plate 501 and a second sleeve 502. The second sleeve 502 is sleeved on the outer wall of the stud 6. One side of the elbow connecting plate 501 is connected to the horseshoe brake 7 through a second bolt 11 and a third nut 12. A spring washer 13 and a flat washer 14 are provided on the second bolt 11. The spring washer 13 is in contact with the inner wall of the third nut 12.

[0029] The pin 15 passes through the first pin sleeve 104 and the second pin sleeve 305.

[0030] The side wall of the column 103 is fixedly connected to a stiffening plate 102, and the bottom surface of the stiffening plate 102 is fixedly connected to the surface of the base plate 101.

[0031] Usage: The device is securely installed on the surface of the overhead crane platform via the base plate 101. The upright column 103 provides support for the entire anti-car device. The first sleeve 2 is used to install the first elbow-shaped crank 3, providing a fulcrum for its movement. The stud 6 is fitted with the second elbow-shaped crank 5, providing a fulcrum for its movement. The pin 15 passes through the first pin sleeve 104 and the second pin sleeve 305, and is used to fix the first elbow-shaped crank 3, thereby fixing the horseshoe-shaped anti-car device 7. This allows the horseshoe-shaped anti-car device 7 to stand upright beside the overhead crane platform, away from the crane track. Effectively prevents the horseshoe-shaped car stopper 7 from falling and blocking the normal operation of the overhead crane, thereby posing a safety risk and fully ensuring the safety of the operators; when the car stopper is in the working position, the pin 15 can be removed from the first pin sleeve 104 and the second pin sleeve 305, and the operating handle 301 can be moved downwards. The operating handle 301 drives the second connecting plate 306 to rotate, which in turn drives the connecting rod 4 to rotate through the first bolt 8 and the first nut 9. The connecting rod 4 drives the elbow-shaped connecting plate 501 and the horseshoe-shaped car stopper 7 to rotate, so that the horseshoe-shaped car stopper 7 fits with the overhead crane track, and the arc surface set at the upper end fits with the tread surface of the overhead crane wheel, thereby achieving the purpose of preventing the overhead crane from running.

[0032] When the vehicle is not in need of being stopped, the operating handle 301 on the first elbow crank 3 can be pulled upwards. The operating handle 301 drives the second connecting plate 306 to rotate, which in turn drives the connecting rod 4 to rotate through the first bolt 8 and the first nut 9. The connecting rod 4 drives the elbow connecting plate 501 and the horseshoe-shaped vehicle stopper 7 to rotate. The horseshoe-shaped vehicle stopper 7 is moved away from the overhead crane track and stands upright next to the overhead crane running platform. The first elbow crank 3 is fixed by inserting the pin 15 into the first pin sleeve 104 and the second pin sleeve 305, thereby fixing the horseshoe-shaped vehicle stopper 7 and preventing it from rotating. The operation is safe, reliable and convenient, and can be switched between non-working and working states at any time according to the needs of the operator.

[0033] Example 2.

[0034] This utility model includes a bracket 1, a base plate 101, a stiffening plate 102, a column 103, a first pin sleeve 104, a first sleeve 2, a first elbow-shaped crank 3, an operating handle 301, a first connecting plate 302, a shaft 303, a fixing ring 304, a second pin sleeve 305, a second connecting plate 306, a connecting rod 4, a second elbow-shaped crank 5, an elbow-shaped connecting plate 501, a second sleeve 502, a stud 6, a horseshoe-shaped wheel stopper 7, a first plate body 701, and a circle. The structure includes an arc plate 702, a second plate 703, a third plate 704, a first bolt 8, a first nut 9, a second nut 10, a second bolt 11, a third nut 12, a spring washer 13, a flat washer 14, a pin 15, and a crane track 16. Specifically, it includes a bracket 1, whose bottom end is fixedly installed on the surface of the crane's running platform. The bracket 1 includes a base plate 101, a column 103, and a first pin sleeve 104. The base plate 101 is fixedly installed on the crane. On the surface of the operating platform, a column 103 is fixedly installed on the base plate 101. A first pin sleeve 104 is fixedly installed on the side wall of the column 103. A first sleeve 2 is fixedly installed on the outer wall of the column 103. The first sleeve 2 is located near the top of the column 103. The middle part of the first elbow crank 3 passes through the first sleeve 2. One end of the first elbow crank 3 is the operating end. The other end is connected to the upper end of the connecting rod 4 through the first bolt 8 and the first nut 9. The lower end of the connecting rod 4 is connected to one end of the second elbow crank 5 through the first bolt 8 and the first nut 9. A stud 6 is fixedly connected to one end of the side wall of the column 103. The second elbow crank 5 is fitted inside the stud 6. The other end of the stud 6 is fixed to the second elbow crank 5 with the second nut 10. The other end of the second elbow crank 5 is connected to the horseshoe-shaped brake 7 through the second bolt 11 and the third nut 12. A pin 15 is provided through the first pin sleeve 104 and the first elbow crank 3.

[0035] The first elbow-shaped crank 3 includes an operating handle 301, a first connecting plate 302, a shaft 303, a retaining ring 304, a second pin sleeve 305, and a second connecting plate 306. The shaft 303 passes through the first sleeve 2. One end of the shaft 303 is connected to the operating handle 301 through the first connecting plate 302, and the other end of the shaft 303 is connected to the second connecting plate 306. Two retaining rings 304 are sleeved on the shaft 303 and are placed on both sides of the first sleeve 2.

[0036] The second elbow crank 5 includes an elbow connecting plate 501 and a second sleeve 502. The second sleeve 502 is sleeved on the outer wall of the stud 6. One side of the elbow connecting plate 501 is connected to the horseshoe brake 7 through a second bolt 11 and a third nut 12. A spring washer 13 and a flat washer 14 are provided on the second bolt 11. The spring washer 13 is in contact with the inner wall of the third nut 12.

[0037] The horseshoe-shaped vehicle stopper 7 includes a first plate 701, an arc plate 702, a second plate 703, and a third plate 704. The first plate 701 is attached to the elbow-shaped connecting plate 501 and fixedly connected by a second bolt 11 and a third nut 12. The arc plate 702 is fixedly connected to the side wall of the first plate 701, the second plate 703 is fixedly connected to the bottom surface of the arc plate 702, and the third plate 704 is fixedly connected to the bottom surface of the second plate 703.

[0038] The pin 15 passes through the first pin sleeve 104 and the second pin sleeve 305.

[0039] The side wall of the column 103 is fixedly connected to a stiffening plate 102, and the bottom surface of the stiffening plate 102 is fixedly connected to the surface of the base plate 101.

[0040] Usage: The device is fixedly installed on the surface of the overhead crane platform via the base plate 101, ensuring a secure installation. The upright column 103 provides support for the entire anti-rollover device. The first sleeve 2 is used to install the first elbow-shaped crank 3, providing a force support point for its movement. The stud 6 is fitted with the second elbow-shaped crank 5, providing a force support point for its movement. The pin 15 passes through the first pin sleeve 104 and the second pin sleeve 305, and can be used to fix the first elbow-shaped crank 3, thereby fixing the horseshoe-shaped anti-rollover device 7. This allows the horseshoe-shaped anti-rollover device 7 to stand upright next to the overhead crane platform, effectively preventing it from falling off the track. The device prevents the overhead crane from operating normally, thus posing a safety risk and ensuring the safety of operators. When the device is in the working position, the pin 15 can be removed from the first pin sleeve 104 and the second pin sleeve 305. The operating handle 301 can be moved downwards, which drives the second connecting plate 306 to rotate. This, in turn, drives the connecting rod 4 to rotate through the first bolt 8 and the first nut 9. The connecting rod 4 drives the elbow-shaped connecting plate 501 and the horseshoe-shaped wheel stopper 7 to rotate, so that the third plate 704 on the bottom surface of the horseshoe-shaped wheel stopper 7 fits against the overhead crane track, and the arc surface of the arc plate 702 on the upper end fits against the tread surface of the overhead crane wheel, thereby achieving the purpose of preventing the overhead crane from running.

[0041] When the vehicle is not in need of being stopped, the operating handle 301 on the first elbow crank 3 can be pulled upwards. The operating handle 301 drives the second connecting plate 306 to rotate, which in turn drives the connecting rod 4 to rotate through the first bolt 8 and the first nut 9. The connecting rod 4 drives the elbow connecting plate 501 and the horseshoe-shaped vehicle stopper 7 to rotate. The horseshoe-shaped vehicle stopper 7 is moved away from the overhead crane track and stands upright next to the overhead crane running platform. The first elbow crank 3 is fixed by inserting the pin 15 into the first pin sleeve 104 and the second pin sleeve 305, thereby fixing the horseshoe-shaped vehicle stopper 7 and preventing it from rotating. The operation is safe, reliable and convenient, and can be switched between non-working and working states at any time according to the needs of the operator.

Claims

1. A stationary crown block car arresting device, characterized by: The utility model provides a kind of crane safety device, including support (1), support (1) bottom end fixed mounting is in the surface of headstock gear running platform, support (1) includes bottom plate (101), stand (103) and first bolt sleeve (104), bottom plate (101) is fixedly installed on the surface of headstock gear running platform, bottom plate (101) surface is fixedly installed with stand (103), the lateral wall surface of stand (103) is fixedly installed with first bolt sleeve (104);The outer wall surface of stand (103) is fixedly installed with first sleeve (2), first sleeve (2) is set to the position close to the top of stand (103), first elbow crank (3) middle part passes through first sleeve (2), first elbow crank (3) one end is operating end, the other end is connected with connecting rod (4) upper end by first bolt (8) and first nut (9), connecting rod (4) lower end is connected with one end of second elbow crank (5) by first bolt (8) and first nut (9);The lateral wall of stand (103) is fixedly connected with one end of stud (6), stud (6) is sleeved with second elbow crank (5), the other end of stud (6) is fixed with second elbow crank (5) using second nut (10), the other end of second elbow crank (5) is connected with shoe brake (7) by second bolt (11), third nut (12), through first bolt sleeve (104) and first elbow crank (3) are provided with bolt (15).

2. A stationary overhead travelling crane arresting device as claimed in claim 1, characterized in that The first elbow crank (3) includes an operating handle (301), a first connecting plate (302), a shaft (303), a fixing ring (304), a second bolt sleeve (305) and a second connecting plate (306), the shaft (303) is arranged through the first sleeve (2), one end of the shaft (303) is connected with the operating handle (301) through the first connecting plate (302), one end of the shaft (303) is connected with the second connecting plate (306), the fixing ring (304) is sleeved on the shaft (303), and the number of the fixing ring (304) is two, which are arranged on the two sides of the first sleeve (2).

3. A stationary trolley arresting device as claimed in claim 2, characterised in that: The second elbow crank (5) includes an elbow connecting plate (501) and a second sleeve (502), the second sleeve (502) is sleeved on the outer wall surface of the stud (6), one side of the elbow connecting plate (501) is connected with the shoe brake (7) through the second bolt (11), the third nut (12), the spring washer (13) and the flat washer (14) are arranged on the second bolt (11), and the spring washer (13) is attached to the inner wall surface of the third nut (12).

4. A stationary trolley arresting device as claimed in claim 3, characterised in that: The shoe brake (7) includes a first plate body (701), a circular arc plate (702), a second plate body (703) and a third plate body (704), the first plate body (701) is fixedly connected with the elbow connecting plate (501) through the second bolt (11) and the third nut (12), the lateral wall surface of the first plate body (701) is fixedly connected with the circular arc plate (702), the bottom surface of the circular arc plate (702) is fixedly connected with the second plate body (703), and the bottom surface of the second plate body (703) is fixedly connected with the third plate body (704).

5. A stationary trolley arresting device as claimed in claim 4, characterised in that: The bolt (15) penetrates the first bolt sleeve (104) and the second bolt sleeve (305).

6. A stationary trolley arresting device as claimed in claim 5, characterised in that: The sidewall surface of the column (103) is fixedly connected with the web plate (102), and the bottom surface of the web plate (102) is fixedly connected to the surface of the bottom plate (101).

Images