Safety guardrail for entrance channel

Abstract

The utility model relates to a safety guardrail for an entrance channel. The safety guardrail comprises a machine body, a guard bar rotating seat, a locking nut, a limiting bolt, a rotating seat, a guardrail, a blocking nail, a pin shaft and a torsional spring, a guard bar rotating base is fixed to the side face of the machine body, a limiting bolt hole is formed in the guard bar rotating base, a limiting bolt part is installed in the limiting bolt hole, and a locking nut is installed on the limiting bolt. A blocking nail is fixed on the guard bar rotating seat, the rotating seat is hinged with the guard bar rotating seat through a pin shaft, a torsional spring is sleeved on the pin shaft, one end of the torsional spring is contacted with the rotating seat, the other end of the torsional spring leans against the blocking nail, the axis of the pin shaft and the axis of the limiting bolt are arranged in different planes, and a guardrail is fixed on the rotating seat. According to the utility model, an operator can be prevented from accidentally falling off when working on a high-altitude working platform. The device is simple in structure, convenient to operate, safe and reliable.

Description

Technical Field

[0001] The utility model relates to a safety guardrail device, and particularly discloses a safety guardrail for an entrance passage of a high-altitude working platform of a printing machine. Background Art

[0002] The entrance channel guardrail of the current printing machine work platform can be opened both inward and outward. After the operator completes the work, the guardrail can be directly opened by pushing it outward. If the operator walks out, there is a possibility of falling. Summary of the Invention

[0003] The purpose of the utility model is to overcome the deficiencies in the prior art and to provide an entrance passage safety guardrail which can only be opened inwards and has higher safety.

[0004] According to the technical solution provided by the utility model, the entrance passage safety guardrail includes a body, a guard bar swivel seat, a locking nut, a limit bolt, a swivel seat, a guardrail, a retaining nail, a pin shaft and a torsion spring;

[0005] A guard rod rotating seat is fixed on the side of the body, a limit bolt hole is provided on the guard rod rotating seat, the limit bolt portion is installed in the limit bolt hole, and a locking nut is installed on the limit bolt;

[0006] A common stop pin is fixed on the guard bar swivel seat, and the swivel seat is hinged to the guard bar swivel seat through a pin shaft. A torsion spring is mounted on the pin shaft, one end of the torsion spring contacts the swivel seat, and the other end of the torsion spring rests on the stop pin. The axis of the pin shaft and the axis of the limit bolt are arranged in different planes, and a guardrail is fixed on the swivel seat.

[0007] Preferably, the axis of the pin shaft and the axis of the limiting bolt are arranged in different planes and perpendicularly.

[0008] Preferably, the distance between the axis of the pin and the axis of the limiting bolt is 12-21 mm.

[0009] Preferably, it further comprises fixing bolts and a pressure cover, and the swivel seat, guardrail and pressure cover are fixed together by fixing bolts.

[0010] The utility model can prevent an operator from accidentally falling while working on a high-altitude work platform. The utility model has a simple structure, is easy to operate, and is safe and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is the main view of the present utility model.

[0012] Figure 2 yes Figure 1 AA cross-sectional view.

[0013] Figure 3 yes Figure 2 BB cross-sectional view.

[0014] Figure 4 It is a three-dimensional diagram of the present utility model. DETAILED DESCRIPTION

[0015] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0016] An entryway safety guardrail, such as Figure 1-4 As shown, it includes a body 1, a guard rod swivel seat 2, a locking nut 3, a limit bolt 4, a swivel seat 5, a guardrail 6, a retaining nail 9, a pin 10 and a torsion spring 11;

[0017] A guard rod rotating seat 2 is fixed on the side of the body 1, a limit bolt hole is opened on the guard rod rotating seat 2, the limit bolt 4 is partially installed in the limit bolt hole, and a locking nut 3 is installed on the limit bolt 4;

[0018] There is a stop pin 9 fixed on the guard rod swivel seat 2, and the swivel seat 5 is hinged to the guard rod swivel seat 2 through a pin 10, so that the swivel seat 5 can rotate around the pin 10. A torsion spring 11 is mounted on the pin 10, and one end of the torsion spring 11 is in contact with the swivel seat 5, and the other end of the torsion spring 11 rests on the stop pin 9. The axis of the pin 10 is arranged in an eccentric plane with the axis of the limit bolt 4, and a guardrail 6 is fixed on the swivel seat 5.

[0019] The axis of the pin 10 and the axis of the limiting bolt 4 are arranged in different planes and perpendicular to each other.

[0020] The distance between the axis of the pin 10 and the axis of the limiting bolt 4 is 12-21 mm.

[0021] It also includes fixing bolts 7 and a pressure cover 8 , and the swivel seat 5 , the guardrail 6 and the pressure cover 8 are fixed together by the fixing bolts 7 .

[0022] In the present invention, the opening angle of the guardrail 6 can be adjusted by adjusting the exposed length of the limit bolt 4 .

[0023] When an operator wishes to enter the entrance passage of the printing press aerial work platform to work, they push guardrail 6 inward. Guardrail 6, together with swivel seat 5, overcomes the torsion force of torsion spring 11 and rotates about pin 10, opening guardrail 6. After the operator enters the entrance passage of the printing press aerial work platform, they remove the force, and guardrail 6 closes under the torsion force of torsion spring 11. After completing their work, when the operator wishes to exit, they push guardrail 6 outward, but swivel seat 5 strikes stop bolt 4, preventing guardrail 6 from opening. They must then pull guardrail 6 inward, freeing swivel seat 5 from the stop bolt 4, allowing guardrail 6 to open inward and allowing the operator to exit.

[0024] The utility model effectively prevents the possibility of falling when an operator directly opens the guardrail by pushing the guardrail outwards and walks out in the prior art. The utility model has a simple structure, is easy to operate, and is safe and reliable.

[0025] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to examples, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. An entranceway safety guardrail, characterized by: It comprises a body (1), a guard rod swivel seat (2), a locking nut (3), a limit bolt (4), a swivel seat (5), a guard rail (6), a retaining nail (9), a pin (10) and a torsion spring (11); A guard rod rotating seat (2) is fixed on the side of the machine body (1), a limit bolt hole is opened on the guard rod rotating seat (2), the limit bolt (4) is partially installed in the limit bolt hole, and a locking nut (3) is installed on the limit bolt (4); A retaining pin (9) is fixed on the guard bar swivel seat (2), and the swivel seat (5) is hinged to the guard bar swivel seat (2) through a pin shaft (10). A torsion spring (11) is mounted on the pin shaft (10), one end of the torsion spring (11) contacts the swivel seat (5), and the other end of the torsion spring (11) rests on the retaining pin (9). The axis of the pin shaft (10) and the axis of the limiting bolt (4) are arranged in different planes, and a guardrail (6) is fixed on the swivel seat (5).

2. The entranceway safety guardrail according to claim 1, characterized in that: The axis of the pin (10) and the axis of the limiting bolt (4) are arranged in different planes and perpendicular to each other.

3. The entranceway safety guardrail according to claim 2, characterized in that: The distance between the axis of the pin (10) and the axis of the limiting bolt (4) is 12-21 mm.

4. The entranceway safety guardrail according to claim 1, characterized in that: It also includes a fixing bolt (7) and a pressure cover (8), and the rotating seat (5), the guardrail (6) and the pressure cover (8) are fixed together by the fixing bolt (7).

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