CN2883113Y - Lock means of angle door - Google Patents

Abstract

An angle cock shutting device is provided, which comprises a swinging arm, a base body, a spring return, a connection base, a pallet, a spring, and a pallet axis. The shutting device is arranged on the linking of the angle cock through a connection base, and the swinging arm is connected with a handle under the function of spring return. When the handle is raised up, the pallet on the swinging arm is clocked inside the ratchet of the base body under the function of spring and stays motionless; therefore, the handle is confined to move by the swinging arm. When the handle is raised up, the pallet axis can be rotated to make the pallet freed from the ratchet, then the swinging arm losses its control and swings up with the handle. When the handle is laid down, the swinging arm swings downward with the handle and the pallet enters the ratchet under the function of the spring again, then, the handle is forbidden to be raised up. The utility model has the advantages of being simple in structure, low in cost and convenient in use. In particular, it can be arranged on the angle lock directly and enjoys wide application.

Description

A kind of closing appliance of angle cock

Technical field

The utility model relates to a kind of angle cock annex, particularly a kind of closing appliance that can be easily installed on the angle cock.

Background technology

Angle cock is a vitals in the railway rolling stock brake system, owing to lack the actv. closing appliance, the phenomenon of brake failure often occurs causing because of abnormal operation in operational process, has had a strong impact on the traffic safety of train.Although occurred some up-to-date technologys, new departure at present, there are various problems in they at aspects such as reliability, operability, economy, do not have large-scale popularization.

Summary of the invention

The purpose of this utility model is to provide a kind of reliability height, installs and uses easy angle cock closing appliance, uses it can actv. to avoid or reduce the generation of angle cock abnormal operation situation.Embodiment of the present utility model is as follows: a kind of closing appliance of angle cock, comprise swing arm, pedestal, return spring, Connection Block, ratchet, spring, pawl axis, and swing arm and pedestal are hinged, and return spring is connected with pedestal with swing arm respectively; Connection Block is installed on the pedestal; Ratchet links together by pawl axis and swing arm, is provided with spring between ratchet and the swing arm.Closing appliance is installed in by Connection Block on the running-on of angle cock, and this moment, swing arm contacted with handgrip under the effect of return spring.When upwards lifting handgrip since swing arm snap under the effect of spring because of the ratchet on it in ratchet of pedestal can't upward movement, so handgrip is limited and can not move by swing arm; In the time of need lifting handgrip, rotatable pawl axis makes ratchet break away from ratchet, and this moment, swing arm lost constraint with handgrip upwards swing simultaneously.When putting down handgrip, swing arm under the effect of return spring with handgrip simultaneously to lower swing, ratchet also reenters ratchet under the effect of spring, handgrip was limited and can not lifts this moment.The schematic diagram of Fig. 1 the utility model embodiment; Fig. 2 a, b are respectively closing and the opening scheme drawing after the utility model is installed.

This utility model is simple in structure, and is with low cost, easy to use, particularly can be directly installed on the angle cock that has used, and certain popularization value is arranged.

Description of drawings

Fig. 1 is the schematic diagram of the utility model embodiment

Fig. 2 is the scheme of installation of the utility model embodiment

Fig. 3 is the structural representation of a kind of embodiment of the utility model

Fig. 4 is that the C of the utility model embodiment is to view

Fig. 5 is the schematic diagram of the another kind of embodiment of the utility model

Among the figure: 1, swing arm 2, pedestal 3, return spring 4, Connection Block 5, ratchet 6, spring 7, pawl axis 8, handgrip 9, running-on 10, shell fragment 11, locating dowel pin 12, guard shield 13, rocking arm

The specific embodiment

A kind of preferred version of the present utility model has adopted structure as shown in Figure 3.Swing arm (1) is a thin membrane box structure, and an end and pedestal (2) are hinged, can swing around hinge-point; Return spring (3) has adopted torsion spring form, and its two ends are connected with pedestal (2) with swing arm (1) respectively; Ratchet (5) is fixed on the pawl axis (7), and links together by pawl axis (7) and swing arm (1), and the section form of pawl axis (7) one side ends is polygon row; Guard shield (12) is fixed on the swing arm (1); Spring (6) one ends are fixed in swing arm (1), and the other end contacts with ratchet (5); Swing arm (1) is provided with locating dowel pin (11), its role is to limit the excessive swing of ratchet (5); Connection Block (4) is installed on the pedestal (2); Pedestal (2) bottom is equipped with shell fragment (10), and its effect is to reduce the loosening phenomenon that closing appliance produces because of ectocine.Closing appliance is installed in by Connection Block (4) on the running-on (9) of angle cock, and swing arm this moment (1) contacts with handgrip (8) under the effect of return spring (3).When upwards lifting handgrip (8) since the ratchet (5) on the swing arm (1) snap under the effect of spring (6) in the ratchet of pedestal (2) can't upward movement, so handgrip (8) is by swing arm (1) restriction and can not move; In the time of need lifting handgrip (8), rotatable pawl axis (7) makes ratchet (5) break away from ratchet, and swing arm this moment (1) loses constraint with handgrip (8) upwards swing simultaneously.When putting down handgrip (8), swing arm (1) under the effect of return spring (3) with handgrip (8) simultaneously to lower swing, ratchet (5) also reenters ratchet under the effect of spring (6), handgrip this moment (8) is limited and can not lifts.Ratchet (5) is within the normal range under the effect of locating dowel pin (11) all the time.

Fig. 4 is several section forms of pawl axis (7) end, and a figure is a triangle, and b figure is a square, and c figure and d figure are respectively pentagon and hexagon.Sheath (12) is arranged at the outside of pawl axis (7) end, plays protection pawl axis (7) and prevents illegal rotation.Under the cooperation of sheath (12), the rotation of pawl axis (7) can only realize by special tool, thereby avoided the unnormal unlocking of closing appliance.Special tool just can be general after determining a kind of production-release design, and this brings great convenience for intrasystem legal user of service's operation.

Fig. 5 is the structure of the another kind of rotation mode of ratchet (5).Rocking arm (13) is installed on the swing arm (1), and rotation rocking arm (13) can drive ratchet (5) swing.The ratchet of this structure (5) is a sliding block joint with pawl axis (7).

Claims (10)

1. the closing appliance of an angle cock comprises swing arm, pedestal, return spring, Connection Block, ratchet, spring, pawl axis, sheath, locating dowel pin, rocking arm, shell fragment, it is characterized in that: swing arm and pedestal are hinged; Connection Block is installed on the pedestal; Ratchet is connected with swing arm by pawl axis; Return spring is connected with pedestal with swing arm respectively; Be provided with spring between swing arm and the ratchet.

2. the closing appliance of a kind of angle cock according to claim 1, it is characterized in that: swing arm is provided with sheath;

3. the closing appliance of a kind of angle cock according to claim 1, it is characterized in that: swing arm is equipped with locating dowel pin;

4. the closing appliance of a kind of angle cock according to claim 1 is characterized in that: rocking arm is housed on the swing arm;

5. the closing appliance of a kind of angle cock according to claim 1, it is characterized in that: the pedestal bottom is equipped with shell fragment;

6. the closing appliance of a kind of angle cock according to claim 1 is characterized in that: return spring employing torsion spring structure;

7. the closing appliance of a kind of angle cock according to claim 1, it is characterized in that: pawl axis axle head cross section is a triangle;

8. the closing appliance of a kind of angle cock according to claim 1, it is characterized in that: pawl axis axle head cross section is four limit row;

9. the closing appliance of a kind of angle cock according to claim 1, it is characterized in that: pawl axis axle head cross section is a pentagon;

10. the closing appliance of a kind of angle cock according to claim 1, it is characterized in that: pawl axis axle head cross section is a hexagon.

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