TWM616826U - Improved lock structure of switch box - Google Patents

Abstract

An improved structure of the lock head of a switch box. The core post of a key can be inserted into the penetrating space of the lock core of a lock head. The embedded block of the core post is embedded in the axial groove of the lock core. The rib is embedded in the positioning groove of the core column, and the key can drive the lock core for unlocking and locking; when unlocking, the unlocking recognition area of the lock core is displayed from the display hole of the lock cover; when locking, the lock core The lock recognition area of is displayed from the display hole; the unlock recognition area and the lock recognition area are in different colors, and the user can visually know that it is the unlocked state or the locked state.

Description

Improved switch box lock structure

This creation is related to the switch box (or electric box, power distribution box), more specifically, it is about the improvement of the lock structure of the handle lock of the switch box door.

The so-called switch box door handle lock mainly refers to the buckle lock structure used for the door of the electrical box or distribution box. As shown in FIG. 1, the handle lock 90 is installed in the preset opening of the box door 91, and the main elements that control the opening or closing of the box door 91 are the button 93 and the spring handle 94. Pressing the button 93 can make the spring handle 94 pop up, and pulling the spring handle 94 can urge the locking piece 96 behind the box door to move away from the locking hole of the switch box (not shown), and the box door can be opened . On the contrary, when the spring handle 94 is pressed back into position, the locking piece 96 is snapped into the locking hole, and the box door is locked.

In order to increase the anti-theft safety of the handle lock, a lock head and a key are added to the handle lock.

The purpose of this creation is to improve the lock head and key of the handle lock.

An improved structure of the lock head of a switch box. The core post of a key can be inserted into the penetrating space of the lock core of a lock head. The embedded block of the core post is embedded in the axial groove of the lock core. The rib is embedded in the positioning groove of the core column, and the key can drive the lock core for unlocking and locking; when unlocking, the unlocking recognition area of the lock core is displayed from the display hole of the lock cover; when locking, the lock core Closed The lock identification area is displayed from the display hole.

The axial groove and the positioning rib can assist the key's core pin to be accurately inserted into the lock core, so that the key can drive the lock core to unlock or lock the rotation; the unlock recognition area and the lock recognition area are in different colors, The user can visually know that the lock is in the unlocked state or the locked state.

<this case>

10: lock

11: Lock core assembly

12: lock shell

121: Front opening

122: Ring flange

123: Forbidden Spinning Ribs

13: lock cylinder

131: Headend

132: Axial groove

133: Positioning rib

134: piercing space

135: Axial segment

136: Unlock identification area

137: Lockout identification area

30: lock cover

31: The first notch

32: second notch

33: display hole

34: Ring Wall

35: Through hole

40: key

41: Grip

42: stem

421: Embedded Block

422: External Embedded Block

423: positioning groove

50: switch box door

51: handle

[Figure 1] A schematic view of the front appearance of a conventional switch box door handle lock.

[Figure 2] One of the three-dimensional exploded views of the lock and key of the switch box door of this creation.

[Figure 3] The second three-dimensional exploded view of the switch box door lock and key of this creation.

[Figure 4] One of the three-dimensional appearance diagrams of the key of the opening and closing box door of this creation is inserted into the lock cylinder.

[Figure 5] A cross-sectional schematic diagram of the key for opening and closing the door of this creation is inserted into the lock cylinder.

[Figure 6] The second schematic diagram of the three-dimensional appearance of the key for opening and closing the door of this creation is inserted into the lock cylinder.

In order to facilitate the description of the central idea of the creation in the column of the above-mentioned new content, specific examples are used to express it. The various objects in the embodiment are drawn according to the proportion, size, deformation or displacement suitable for explanation, rather than drawn according to the proportion of the actual element, which will be described first. In the following description, the same and symmetrically arranged elements are denoted by the same numbers. In the following description, directional terms are used, which are expressed in accordance with the view direction and cannot be interpreted as a restriction on this creation.

As shown in Fig. 2 and Fig. 3, the switch box door handle lock of the present invention includes a lock 10 and a key 40.

The lock head 10 includes a lock core assembly 11 and a lock cover 30.

The lock core assembly 11 includes a lock shell 12 and a lock core 13 rotatably combined in the lock shell 12. The head end 131 of the lock core 13 is exposed in a front opening 121 of the lock shell 12. The head end 131 of the lock cylinder 13 is provided with an unlocking identification area 136 and a locking identification area 137, which are distinguished by different colors.

The center of the lock core 13 is provided with a shaft section 135. The outer diameter of the shaft section 135 is smaller than the inner diameter of the head end 131, so that a pivot space 134 is formed between the shaft section 135 due to the difference in diameter. The outer wall of the shaft section 135 is provided with an axial groove 132, and the inner wall of the head end 131 is provided with at least one positioning rib 133. In this creative embodiment, the number of the positioning ribs 133 is four, and they are evenly distributed on the inner wall of the head end 131 at equal intervals. The annular wall of the lock shell 12 forming the front end opening 121 is protruded and formed with a ring flange 122 radially outward. At least one anti-rotation rib 123 is provided on the outer wall of the lock shell 12. The lock housing 12 is fixed to the handle 51 of the switch box door 50 by the forbidden rotation rib 123 so that the lock housing 12 cannot be rotated.

The lock cover 30 is buckled and positioned on the ring flange 122 with the ring wall 34, so that the lock cover 30 is combined with the lock shell 12. The center of the lock cover 30 is provided with a through hole 35 for exposing the axial section 135 of the lock core 13, the axial groove 132, the positioning rib 133, and the pivot space 134. The lock cover 30 defines a first notch 31 and a second notch 32 radially outward from the inner wall of the through hole 35. The first notch 31 and the second notch 32 are separated by an angle of 90 degrees, and the lock When the cover 30 is combined with the lock shell 12, the first notch 31 or the second notch 32 alternatively corresponds to the axial groove 132. The lock cover 30 is further provided with a display hole 33 at an eccentric position for displaying the unlock recognition area 136 or the locked recognition area 137.

The key 40 includes a holding portion 41 and a stem 42 connected to the holding portion 41. The stem 42 is a cylindrical structure for penetrating into the pivot space 134 of the lock core 13; the stem 42 A built-in block 421 for embedding in the axial groove 132 of the lock core 13 is protruded radially inward from the inner wall of the inner wall 42. The core post 42 is projected radially outwardly corresponding to the outer wall of the built-in block 421. Embedded block 422. The outer wall of the lock core 13 is convex A positioning groove 423 into which the positioning rib 133 of the lock core 13 is inserted is provided.

As shown in Figures 3 to 6, when the key 40 is to be inserted into the lock 10, the externally embedded block 422 of the key 40 corresponds to the first slot 31 or the second slot 32 of the lock cover 30. The core post 42 can smoothly enter the penetrating space 134, indicating that the embedded block 421 of the key 40 has been smoothly inserted into the axial groove 132 of the lock core 13, and the positioning rib 133 of the lock core 13 has been smoothly inserted In the positioning groove 423, at this time, the key 40 can drive the lock core 13 to rotate 90 degrees clockwise or counterclockwise in the lock housing 12, thereby achieving the purpose of locking or unlocking.

For example, suppose that the first notch 31 represents unlocking, and the second notch 32 represents locking. When the stem 42 of the key 40 enters the pivot space 134 with the externally embedded block 422 corresponding to the first notch 31, the key 40 can drive the lock core 13 clockwise by 90 degrees to complete the locking action. The externally embedded block 422 of the core column 42 corresponds to the second notch 32, and the key 40 can be withdrawn from the lock core 13 . When the lock cylinder 13 is unlocked or locked, the color of the unlock recognition area 136 or the lock recognition area 137 will be displayed through the display hole 33. For example, when unlocking, the green unlock recognition area 136 is displayed through the display hole 33; when the lock is locked, the red lock recognition area 137 is displayed through the display hole 33; the user can visually know the unlocked or locked state.

10: lock

11: Lock core assembly

12: lock shell

121: Front opening

122: Ring flange

123: Forbidden Spinning Ribs

13: lock cylinder

132: Axial groove

133: Positioning rib

134: piercing space

135: Axial segment

136: Unlock identification area

137: Lockout identification area

30: lock cover

31: The first notch

32: second notch

33: display hole

34: Ring Wall

35: Through hole

40: key

41: Grip

42: stem

421: Embedded Block

422: External Embedded Block

423: positioning groove

Claims (3)

An improved structure of a switch box lock head, which includes a lock head and a key; the lock head includes a lock core assembly and a lock cover; the lock core assembly includes a lock shell and a lock rotatably integrated in the lock shell The lock shell is fixed to a handle of a switch box door, the head end of the lock cylinder is exposed in a front opening of the lock shell; the lock cover is combined and fixed to the front opening of the lock shell; the key includes a The holding part and a core column connected to the holding part, the core column is a cylindrical structure; characterized in that: the center of the lock core is provided with a shaft section, and the outer diameter of the shaft section is smaller than the inner diameter of the head end. The outer wall of the shaft section is provided with an axial groove, the inner wall of the head end is radially provided with at least one positioning rib; the center of the lock cover is provided with a through hole, The shaft section of the lock core, the axial groove, the positioning rib, and the pivot space are exposed; the lock cover defines a first notch and a second slot radially outward from the inner wall of the through hole Notch; when the lock cover is combined with the lock shell, the first notch or the second notch corresponds to the axial groove; the inner wall of the core post of the key is radially inwardly projected with a An embedded block is embedded in the axial groove of the lock core, and an external embedded block is protruded radially outward from the core column corresponding to the outer wall of the embedded block; the outer wall of the core column protrudes several for the lock core The positioning rib is embedded in the positioning groove; the core post of the key penetrates into the pivot space of the lock core, and the key can drive the lock core to make it clockwise or counterclockwise in the lock shell Turn a predetermined angle to achieve the purpose of locking or unlocking. The structure improvement of the switch box lock head of claim 1, wherein the head end of the lock cylinder is provided with an unlock recognition area and a lock recognition area, both of which are of different colors; the lock cover is in an eccentric position Set a display hole; the color of the unlock recognition area or the closed recognition area will be displayed through the display hole. The structure improvement of the lock head of the switch box according to claim 1, wherein the first notch and the second notch are separated by 90 degrees.

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