Knob structure

Abstract

Provided is a knob structure. Mainly solves the problem that a simple and convenient self-locking structure does not exist because a handle of a knob in the existing explosion-proof industry is locked by adding a padlock after a key is pressed down. The boss is arranged on the panel, a plurality of blocking grooves are formed in the inner wall of the boss, and the knob is rotatably connected with the boss; the first locking groove is formed in the knob; the sliding groove is formed in the knob and is communicated with the first locking groove; the locking plate is in sliding fit with the sliding groove, a clamping block is arranged on the outer wall of the locking plate, the locking plate comprises a locking position and an unlocking position, the locking position extends into the blocking groove, and the clamping block is in limiting fit with the sliding groove so that the knob cannot rotate; the knob structure provided by the utility model adopts an inward pushing / outward pulling mode, is simple to operate, and can realize a locking function as long as the handle is rotated to a target position and then the zipper sheet is pulled outwards during uncovering maintenance; after maintenance is finished, the locking piece can be pushed inwards, and the locking state can be relieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of explosion -proof equipment, concretely relates to a knob structure. BACKGROUND

[0002] The knob is a part often used in the explosion -proof field, and the current knob does not have a locking structure, so when the shell is opened for maintenance, it is necessary to use a padlock to achieve the locking function, and the operation is very cumbersome, and if the padlock is not used, the handle is easy to rotate freely, causing the misalignment phenomenon. INVENTION CONTENTS

[0003] In order to overcome the deficiency of the background art, the utility model provides a knob structure, which mainly solves the problem that the current knob of the explosion -proof industry is locked by adding a padlock after pressing the button, and there is no simple and convenient self -locking structure.

[0004] The technical scheme of the utility model,

[0005] A knob structure, comprising a panel and a knob, further comprising

[0006] A boss is arranged on the panel, and a plurality of blocking grooves are arranged on the inner wall of the boss, and the knob is rotatably connected with the boss;

[0007] A first locking groove is arranged on the knob;

[0008] A sliding groove is arranged on the knob and communicates with the first locking groove;

[0009] A locking piece is in sliding cooperation with the sliding groove, and a clamping block is arranged on the outer wall of the locking piece, and the locking piece comprises

[0010] A locking position, in which the locking piece extends into the blocking groove and the clamping block is limited to cooperate with the sliding groove, so that the knob cannot be rotated, and

[0011] An unlocking position, in which the clamping block is arranged in the first locking groove and the locking piece is away from the blocking groove.

[0012] The first locking groove is arranged on the side wall of the knob.

[0013] An operating part for increasing friction is arranged on the locking piece.

[0014] An accommodating groove is arranged on the locking piece, and an elastic arm is arranged on the inner wall of the accommodating groove, and the clamping block is arranged on the elastic arm.

[0015] An annular groove communicating with the blocking groove is arranged in the boss, and part of the locking piece extends into the annular groove when the locking piece is in the unlocking position.

[0016] The blocking groove is provided with a plurality of blocking grooves.

[0017] The angle between the adjacent blocking grooves is 20-60 degrees.

[0018] The locking piece is provided with a second locking groove which is arranged opposite to the first locking groove.

[0019] The blocking groove is an L-shaped groove.

[0020] The utility model discloses a knob structure, adopt the mode of inside push / outside pull, and the operation is simple, when opening the cover and overhauling and maintaining, only outside pull locking piece after rotating handle to target position, can realize locking function, after overhauling, can push locking piece in, can remove the state of locking. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the perspective schematic view of one embodiment of the utility model.

[0022] Figure 2 It is the perspective schematic view of one embodiment of the utility model. Figure 1 It is the enlarged view of A in the figure.

[0023] Figure 3 It is the explosion schematic view of one embodiment of the utility model.

[0024] Figure 4 It is the perspective schematic view of one embodiment of the utility model. Figure 3 It is the enlarged view of B in the figure.

[0025] Figure 5 It is the sectional view schematic view of one embodiment of the utility model.

[0026] Figure 6 It is the sectional view schematic view of one embodiment of the utility model. DETAILED DESCRIPTION

[0027] The utility model discloses a knob structure, adopt the mode of inside push / outside pull, and the operation is simple, when opening the cover and overhauling and maintaining, only outside pull locking piece after rotating handle to target position, can realize locking function, after overhauling, can push locking piece in, can remove the state of locking.

[0028] In the embodiment, the first lock slot is arranged through the side wall of the knob, as shown in the figure.

[0029] In the embodiment, the operating part 32 for increasing friction is arranged on the lock piece, as shown in the figure.

[0030] In the embodiment, the accommodating slot 33 is arranged on the lock piece, and the elastic arm 34 is arranged on the inner wall of the accommodating slot, and the clamping block is arranged on the elastic arm, as shown in the figure.

[0031] In the embodiment, the annular slot 13 communicating with the blocking slot is arranged in the boss, and part of the lock piece extends into the annular slot when the lock piece is in the unlocking position, as shown in the figure.

[0032] In the embodiment, a plurality of blocking slots are arranged, as shown in the figure.

[0033] In the embodiment, the angle between the adjacent blocking slots is 20°-60°, as shown in the figure.

[0034] In the embodiment, the second lock slot 35 opposite to the first lock slot is arranged on the lock piece, as shown in the figure.

[0035] In the embodiment, the blocking slot is an L-shaped slot, as shown in the figure.

[0036] In the description of the utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation of the utility model.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0038] The embodiments described with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention. The embodiments should not be considered as limitations on the present invention, but any improvements made based on the spirit of the present invention should be within the protection scope of the present invention.

Claims

1. A knob structure, comprising a panel (1) and a knob (2), characterized in that: Also includes A boss (11) is provided on the panel, and its inner wall is provided with several grooves (12). The knob is rotatably connected to the boss. The first locking groove (21) is provided on the knob; A sliding groove (22) is provided on the knob and communicates with the first locking groove; The locking piece (3) slides with the groove, and its outer wall is provided with a locking block (31). The locking piece includes... The locking position, in which the knob cannot be rotated, is achieved by the locking block engaging with the slide groove and extending into the stop groove. The block is positioned away from the retaining groove and in the unlocked position of the first locking groove.

2. A knob structure according to claim 1, characterized in that: The first locking groove is disposed through the side wall of the knob.

3. A knob structure according to claim 1, characterized in that: The locking plate is provided with an operating part (32) for increasing friction.

4. A knob structure according to claim 3, characterized in that: The locking plate is provided with a receiving groove (33), and the inner wall of the receiving groove is provided with an elastic arm (34), and the locking block is provided on the elastic arm.

5. A knob structure according to claim 4, characterized in that: The boss has an annular groove (13) that communicates with the stop groove. When the lock piece is in the unlocked position, part of the lock piece extends into the annular groove.

6. A knob structure according to claim 1, characterized in that: The baffle is provided in multiple places.

7. A knob structure according to claim 6, characterized in that: The angle between adjacent retaining grooves is 20° to 60°.

8. A knob structure according to claim 1, characterized in that: The lock plate is provided with a second lock groove (35) that is opposite to the first lock groove.

9. A knob structure according to claim 1, characterized in that: The retaining groove is an L-shaped groove.

Images