CN220537352U

CN220537352U - Safety door bin switch based on crane gate

Info

Publication number: CN220537352U
Application number: CN202322136838.0U
Authority: CN
Inventors: 庄瑞航
Original assignee: Hangzhou Ketuo Electric Co ltd
Current assignee: Hangzhou Ketuo Electric Co ltd
Priority date: 2023-08-09
Filing date: 2023-08-09
Publication date: 2024-02-27
Anticipated expiration: 2033-08-09

Abstract

The utility model belongs to the technical field of control of crane boarding doors, and provides a safety door bin switch based on a crane boarding door, which comprises a shell, an aviation connector arranged on the side part of the shell, an adsorption magnet arranged on the shell and used for attracting a detection body, and a switch assembly arranged on the shell; the switch assembly comprises a fixed support, an action magnet and an action support, wherein a connecting rod is arranged on the action magnet, penetrates through the fixed support and is connected with the action support, and contact assemblies positioned on the left side and the right side of the switch assembly are connected with a shorting bar, and the contact assemblies on the right side are connected with an aviation connector. The utility model improves the existing non-contact proximity switch into a contact switch, and the cabin door can be opened only by the force of the overhead travelling crane staff, even if the overhead travelling crane vibrates, the cabin door can not be opened abnormally by itself during operation, thereby ensuring the normal operation and personal safety of equipment.

Description

Safety door bin switch based on crane gate

Technical Field

The utility model belongs to the technical field of control of crane boarding doors, and particularly relates to a safety door bin switch based on a crane boarding door.

Background

In the field, the safety operation of the crown block provides that corresponding switches are arranged at the positions of all cabin doors of the crown block so as to ensure the safety of workers entering and exiting the cabin door of the crane. The bridge crane has four boarding gates, each boarding gate is provided with a fence gate for an operator to board or get off, the equipment normally operates when the bridge crane is closed, and the four positions of the bridge crane are in a series linkage power-off state when the bridge crane is opened so as to ensure the personal safety of the boarding personnel on and off the equipment. In the prior art, the non-contact proximity switch with a certain induction distance is arranged, an iron plate welded on the cabin door is used as a detection body, the proximity switch senses that the iron plate is close when the door is closed, an output signal is sent to a crane main control, the crane is in a power-on state, and the crane is in a power-off state when the door is opened, so that the following defects mainly exist: due to aging of the crane and vibration generated during operation, a boarding gate frequently suffers signal loss during operation of the crane and is abnormally powered off, so that the gate is abnormally opened, and personal safety hazards appear during boarding of personnel; the crane can be used only by matching with a door bolt which is automatically installed by a crane worker, the independent installation is not used, and if the worker forgets to insert the door bolt by negligence, the crane can be opened when started, so that the crane is very dangerous.

Disclosure of Invention

The utility model aims to provide a safety door bin switch based on a crane gate, which is simple in structure and convenient to realize, so as to solve the technical problems in the prior art.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the safety door bin switch based on the crane gate comprises a shell, an aviation connector arranged on the side part of the shell, an adsorption magnet arranged on the shell and used for attracting a detection body, and a switch assembly arranged on the shell; the switch assembly comprises a fixed support, an action magnet positioned at the outer side of the bottom of the fixed support, and an action support which is arranged on the fixed support and can move relative to the fixed support according to the attraction action of the action magnet, wherein a connecting rod is arranged on the action magnet, penetrates through the fixed support and is connected with the action support, and contact assemblies positioned at the left side and the right side of the switch assembly are connected with a shorting wire, and the contact assemblies at the right side are connected with the aviation connector; an action range of the action magnet is arranged between the action magnet and the inner wall of the shell at one side opposite to the detection body; the middle part of fixed bolster bottom is provided with the confession the hole that the connecting rod passed, the upper and lower both sides of hole, be located the fixed bolster bottom is provided with the spring loop bar, the upper and lower both sides of fixed bolster are provided with vertical bar hole, the upper and lower both sides of action support are provided with the card and go into protruding fastener in the bar hole, the action support with one side that the fixed bolster is relative is provided with the spring mounting hole, the spring loop bar with be provided with action spring between the spring mounting hole.

Further, nuts are embedded in the positions, opposite to the holes, of the action support, threads matched with the nuts are arranged on the top of the connecting rod, and the connecting rod is in threaded connection with the action support.

Further, the contact assembly comprises a contact piece and an access connecting piece matched with the contact piece, one contact piece is matched with two access connecting pieces, the contact piece is arranged on the action support, the access connecting piece is arranged on the fixed support, a pressure spring is arranged between the contact piece and the action support, and the contact piece moves along with the action support.

Further, the contact piece comprises a contact main part and contact auxiliary parts symmetrically arranged at two sides of the contact main part; the access connector comprises an access main body part, an installation through hole and an access contact pair part, wherein the installation through hole is arranged on one side of the access main body part and used for installation, and the access contact pair part is arranged on the opposite side of the access main body part and matched with the contact pair part; and a fixing screw is arranged on the mounting through hole.

Further, the device also comprises a protective shell for protecting the action magnet, and the connecting rod penetrates through the protective shell and the action magnet.

Further, the casing includes the mounting panel and sets up casing main part on the mounting panel, switch assembly sets up in the casing main part, the casing main part is dorsad the one side of mounting panel is the response face.

Further, the shell is integrally formed by stainless steel.

Compared with the prior art, the utility model has the following beneficial effects:

(1) The utility model combines the stainless steel shell with the adsorption magnet with large magnetic force, has large attraction force, and simultaneously combines the design of the switch component, improves the existing non-contact proximity switch into a contact switch, and can open the cabin door only by the effort of crown block staff, even if the crown block vibrates, the cabin door can not be opened abnormally by itself during operation, thereby ensuring the normal operation and personal safety of equipment.

(2) The door lock is not required to be matched with a door bolt, and only plays an auxiliary role if the door bolt is adopted, so that the door can not be automatically opened once a worker is carelessly inserted, and the personal safety of the worker is ensured.

Drawings

Fig. 1 is a front view of a housing in the present utility model.

Fig. 2 is a side view of the housing of the present utility model.

Fig. 3 is a top view of the present utility model.

Fig. 4 is a schematic diagram of the operation of the present utility model.

Fig. 5 is an exploded view of the switch assembly of the present utility model.

Fig. 6 is a partial schematic view of an action frame portion in the present utility model.

Fig. 7 is a partial schematic view of a portion of a fixing bracket according to the present utility model.

Fig. 8 is a schematic view of the structure of the contact assembly of the present utility model.

Fig. 9 is a schematic diagram of the operation of the contact assembly of the present utility model.

Wherein, the names corresponding to the reference numerals are as follows: 1-shell, 2-aviation connector, 3-adsorption magnet, 4-fixed bracket, 5-action bracket, 6-connecting rod, 7-action magnet, 8-detection body, 9-shorting wire, 10-hole, 11-spring sleeve rod, 12-bar hole, 13-protruding clamping piece, 14-spring mounting hole, 15-action spring, 16-nut, 17-contact piece, 18-access connecting piece, 19-compression spring, 20-indicator lamp, 21-mounting plate, 22-shell main body, 23-sensing surface, 24-protection shell, 25-switch component and 26-action range; 171-contact main part, 172-contact auxiliary part, 181-access main body part, 182-mounting through hole, 183-access contact auxiliary part, 184-fixing screw.

Detailed Description

The present utility model will be further described in detail with reference to examples so as to enable those skilled in the art to more clearly understand and understand the present utility model. It should be understood that the following specific embodiments are only for explaining the present utility model, and it is convenient to understand that the technical solutions provided by the present utility model are not limited to the technical solutions provided by the following embodiments, and the technical solutions provided by the embodiments should not limit the protection scope of the present utility model.

Examples

As shown in fig. 1 to 9 (the action bracket in fig. 6 is a side view relative to the action bracket in fig. 5), the present embodiment provides a safety door cabin switch based on a crane gate, which uses a housing as a main carrier, combines with a switch assembly and an adsorption magnet design, and improves the existing non-contact proximity switch into a contact switch, so as to solve the problems existing in the prior art.

In this embodiment, the casing adopts 1.2mm thick, 304 stainless steel integrated into one piece casing, and the casing includes the mounting panel and sets up the casing main part on the mounting panel, and switch module sets up in the casing main part, and the one side of casing main part dorsad mounting panel is the sensing surface. Four corners of mounting panel are the mounting hole for install fixed casing, and the casing main part is the cuboid structure, and inside is cavity for installation switch module and attracting magnet, four angular position departments of casing main part sensing surface inboard set up an attracting magnet respectively, preferred permanent magnet, and the lateral part of casing main part sets up aviation connector for connecting the signal line.

In this embodiment, the switch assembly includes a fixed bracket, an action magnet located at the outer side of the bottom of the fixed bracket, an action bracket disposed on the fixed bracket and capable of moving relative to the fixed bracket according to the actuation action of the action magnet, a connecting rod disposed on the action magnet, the connecting rod passing through the fixed bracket and connected with the action bracket, and contact assemblies located at the left and right sides of the switch assembly, the contact assemblies at the left side being connected with a shorting wire, the contact assemblies at the right side being connected with an aviation connector; the action magnet has an action range of the action magnet between the action magnet and the inner wall of the shell opposite to the side of the detection body, and the distance of the action range is generally 5 mm-10 mm, preferably 5mm. The fixed support is fixed and fixed, the fixed support is arranged in the shell, the action support is buckled on the fixed support, the action of the action support is driven by the action magnet, when the action magnet attracts the steel plate of the detection body, the action support is pulled downwards, the action support descends relative to the fixed support, and after the action magnet breaks away from the steel plate of the detection body, the action support ascends relative to the fixed support and returns to the original position.

The connection relation between the action magnet and the fixed bracket and the action bracket is as follows: the middle part of the bottom of the fixed bracket is provided with a hole for the connecting rod to pass through, a nut is embedded in the position, opposite to the hole, of the action bracket, the top of the connecting rod is provided with threads matched with the nut, and the connecting rod passes through the hole on the fixed bracket and then is connected with the nut in the action bracket through threads, so that the action magnet acts to drive the action bracket to act.

An action spring is arranged between the fixed support and the action support, and the action of the action spring is that the action spring is in a compressed state when the action magnet attracts the detection body, and after the action magnet is separated from the detection body, the action spring rebounds and resets, and the action support moves upwards relative to the fixed support under the action of the action spring to drive the action magnet to reset. Specifically, a hole for a connecting rod to pass through is formed in the middle of the bottom of the fixed support, spring loop bars are arranged on the upper side and the lower side of the hole and positioned at the bottom of the fixed support, a spring mounting hole is formed in one side of the action support opposite to the fixed support, and an action spring is arranged between the spring loop bars and the spring mounting hole; further, the upper and lower both sides of fixed bolster are provided with vertical bar hole, and the upper and lower both sides of action support are provided with the protruding fastener of card income bar downthehole, and action support installs the back on the fixed bolster, and protruding fastener card promptly goes into in the bar through-hole, and its effect is spacing, can avoid action support to break away from in the fixed bolster completely, and its effect is the guide effect that plays.

In this embodiment, the contact assembly includes contact and the access connecting piece that matches with the contact, and two access connecting pieces are matchd to a contact, and the contact sets up on the action support, and access connecting piece sets up on the fixed bolster, is provided with the pressure spring between contact and the action support. The contact piece and the access connecting piece are made of the same material, and preferably are made of conductive materials. Specifically, the contact piece comprises a contact main part and contact auxiliary parts symmetrically arranged at two sides of the contact main part; the access connector comprises an access main body part, an installation through hole arranged on one side of the access main body part and used for installation, and an access contact pair part arranged on the opposite side of the access main body part and matched with the contact pair part; the mounting through hole is provided with a fixing screw. The action support is provided with a groove for installing a contact piece, the contact piece is installed in the groove, the contact piece moves along with the action support, the access connecting piece is fixed on the fixed support through a fixed screw, when the action magnet attracts the detection body, the action support descends, the contact auxiliary part of the contact piece and the access contact auxiliary part of the access connecting piece are in a contact conduction state, at the moment, the switch outputs a conduction signal to the aviation connector, the aviation connector outputs a signal to the driving main control system, the cabin door is completely closed, and the equipment normally operates in a power connection mode; when the cabin door is opened, the action magnet is separated from the detection body, the contact auxiliary part of the contact piece is separated from the access contact auxiliary part of the access connecting piece, and the equipment is powered off and is static, so that the personal safety of passengers getting on or off the vehicle is ensured. In a further preferred scheme, the contact assembly on the right side is also connected with an indicator lamp, the indicator lamp is turned on when the indicator lamp is electrified, and the indicator lamp is turned off after the switch is attracted, so that the indicator lamp is used for reference of staff.

In order to better realize the utility model, the embodiment also comprises a protective shell for protecting the action magnet, wherein through holes for the connecting rod to pass through are formed in the protective shell and the magnet, the connecting rod passes through the protective shell and the action magnet, the thickness of the protective shell is generally about 1mm, and the action magnet is prevented from being damaged due to the attraction action on the premise of not influencing the attraction detection body of the action magnet. In this embodiment, the protective housing has two structures, one is an aluminum pad matched with the bottom of the action magnet, and the shape and the size of the pad are matched with the bottom of the action magnet (the bottom opposite to the induction surface); and secondly, an aluminum shell matched with the shape of the action magnet, wherein the inner diameter of the aluminum shell is matched with the outer diameter of the action magnet, the action magnet is embedded in the protective shell, and the protective effect of the second structure is better than that of the first structure.

The foregoing is a preferred embodiment of the present utility model. It should be noted that those skilled in the art may make several modifications without departing from the design principles and technical solutions of the present utility model, and these modifications should also be considered as the protection scope of the present utility model.

Claims

1. The safety door bin switch based on the crane gate is characterized by comprising a shell (1), an aviation connector (2) arranged on the side part of the shell (1), an adsorption magnet (3) arranged on the shell (1) and used for attracting a detection body (8), and a switch assembly arranged on the shell (1); the switch assembly (25) comprises a fixed support (4), an action magnet (7) positioned at the outer side of the bottom of the fixed support (4), an action support (5) which is arranged on the fixed support (4) and can move relative to the fixed support (4) according to the attraction action of the action magnet (7), a connecting rod (6) is arranged on the action magnet (7), the connecting rod (6) penetrates through the fixed support (4) and is connected with the action support (5), and contact assemblies positioned at the left side and the right side of the switch assembly, the contact assemblies at the left side are connected with a shorting wire (9), and the contact assemblies at the right side are connected with the aviation connector (2); the middle part of fixed bolster (4) bottom is provided with supplies hole (10) that connecting rod (6) passed, the upper and lower both sides of hole (10), be located fixed bolster (4) bottom is provided with spring loop bar (11), the upper and lower both sides of fixed bolster (4) are provided with vertical bar hole (12), the upper and lower both sides of action support (5) are provided with the card and go into protruding fastener (13) in bar hole (12), action support (5) with one side that fixed bolster (4) is relative is provided with spring mounting hole (14), spring loop bar (11) with be provided with action spring (15) between spring mounting hole (14).

2. The safety door bin switch based on a crane gate according to claim 1, wherein: a screw cap (16) is embedded in the position, opposite to the hole (10), of the action support (5), threads matched with the screw cap (16) are arranged on the top of the connecting rod (6), and the connecting rod (6) is in threaded connection with the action support (5).

3. The safety door bin switch based on a crane gate according to claim 2, wherein: the contact assembly comprises contact pieces (17) and access connecting pieces (18) matched with the contact pieces (17), one contact piece (17) is matched with two access connecting pieces (18), the contact pieces (17) are arranged on the action support (5), the access connecting pieces (18) are arranged on the fixed support (4), a pressure spring (19) is arranged between the contact pieces (17) and the action support (5), and the contact pieces (17) follow the action support (5) to act.

4. A safety door cabin switch based on a crane gate according to claim 3, characterized in that: the contact piece (17) comprises a contact main part (171) and contact auxiliary parts (172) symmetrically arranged at two sides of the contact main part (171); the access connector (18) comprises an access main body part (181), an installation through hole (182) arranged on one side of the access main body part (181) and used for installation, and an access contact auxiliary part (183) arranged on the opposite side of the access main body part (181) and matched with the contact auxiliary part (172); the mounting through hole (182) is provided with a fixing screw (184).

5. The safety door bin switch based on a crane gate according to claim 4, wherein: the device also comprises a protective shell (24) for protecting the action magnet (7), and the connecting rod (6) passes through the protective shell (24) and the action magnet (7).

6. The crane gate based safety door bin switch of any one of claims 1 to 5, wherein: the shell (1) comprises a mounting plate (21) and a shell main body (22) arranged on the mounting plate (21), the switch assembly is arranged in the shell main body (22), and one surface, facing away from the mounting plate (21), of the shell main body (22) is an induction surface (23).