CN218674015U

CN218674015U - Torque detection device of case door closer

Info

Publication number: CN218674015U
Application number: CN202222707059.7U
Authority: CN
Inventors: 郑小建; 杜旭东
Original assignee: Ningbo Fmc Co
Current assignee: Ningbo Fmc Co
Priority date: 2022-10-13
Filing date: 2022-10-13
Publication date: 2023-03-21
Anticipated expiration: 2032-10-13

Abstract

The utility model discloses a torque detection device of case and shell door closer, including mesa (1), include on mesa (1): the door closer clamping assembly is used for clamping and fixing the door closer shell; the door closer adjusting component is used for rotating and adjusting a torque adjusting screw rod of the door closer; the test load assembly is used for detecting whether the preset torque of the torque output end of the door closer meets the requirement or not; the door closer clamping component comprises a clamping block (2) and a telescopic pressure rod (3) which are arranged on the table board (1), and a limiting groove (4) matched with the door closer to be clamped is formed in the clamping block (2); the utility model discloses can effectively improve the moment of torsion detection efficiency of case shell door closer.

Description

Torque detection device of case door closer

Technical Field

The utility model relates to a detection device technical field specifically says a torque detection device of case and shell door closer.

Background

The door closer for refrigerator, refrigerator and other box has the working principle that after the door opening process is completed, the accumulated elastic potential energy is released to drive the transmission gear to rotate and output torque to the door shaft, so that the door is closed to the initial position accurately and timely. As shown in fig. 1-2, a door closer for a small cabinet in the prior art usually includes a torque output end and a torque adjusting screw, and the torque adjusting screw is used for presetting a maximum torque value of the torque output end of the door closer and can indirectly preset the restoring force when a door body is automatically closed. When the torque adjusting screw is screwed in along the direction of increasing the preset torque, the transmission gear of the torque output end can rotate to output the preset torque, so that the resistance during door opening is increased, the restoring force during automatic door closing is increased, whether the torque adjusting function of the door closer meets the requirement is always required to be detected in the production process, if each door closer is installed on a specific door to be detected, the low detection efficiency is inevitably caused, and the detection cost is increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that overcome above prior art's shortcoming: the torque detection device effectively improves the detection efficiency of the case shell door closer.

The technical solution of the utility model is as follows: the utility model provides a torque detection device of case door closer, includes the mesa, include on the mesa:

the door closer clamping assembly is used for clamping and fixing the door closer shell;

the door closer adjusting component is used for rotating and adjusting a torque adjusting screw rod of the door closer;

and the test load assembly is used for detecting whether the preset torque of the torque output end of the door closer meets the requirement or not.

Preferably, the door closer clamping assembly comprises a clamping block and a telescopic pressure rod which are arranged on the table board.

And optimally, a limiting groove matched with the door closer to be clamped is arranged on the clamping block.

And optimally, a through hole which is just opposite to the torque output end of the door closer is arranged in the limiting groove of the clamping block.

Preferably, the telescopic pressure lever is driven to stretch by air, a motor or manually.

Specifically, the telescopic pressing rod is in threaded fit with a fixed block arranged on the table board, and a hand wheel for manually driving the telescopic pressing rod to stretch is arranged at the tail end of the telescopic pressing rod.

Preferably, the door closer adjusting assembly comprises a sliding rail arranged on the table top and a stepping motor in sliding fit with the sliding rail.

Preferably, a driving structure matched with the end part of a torque adjusting screw of the door closer is arranged at the end part of an output shaft of the stepping motor.

Preferably, the stepping motor slides along the sliding rail through manual, pneumatic or motor driving.

Specifically, step motor passes through pneumatic mechanism drive its edge the slide rail slides, mesa bottom is fixed with the cylinder, step motor bottom with the flexible gas pole tip of cylinder is fixed.

Preferably, the test load assembly comprises a bearing arranged on the table board and a horizontally arranged load rotating shaft matched with the bearing.

Preferably, one end of the load rotating shaft penetrates through the through hole in the clamping block, and a circumferential limiting structure matched with the torque output end of the door closer is arranged at the end of the load rotating shaft.

And as optimization, the other end of the load rotating shaft is hinged with a weight through a connecting rod.

Preferably, the load rotating shaft is provided with a radially arranged supporting rod, and the end part of the supporting rod is provided with a proximity switch.

Preferably, when the support rod is vertical to the table top and faces upwards, the connecting rod hinged with the weight faces downwards vertically.

And as optimization, the cylinder controls the expansion of the telescopic air rod by controlling the on-off of the air passage through an electromagnetic valve, and the stepping motor, the electromagnetic valve of the cylinder and the proximity switch are electrically connected with the main controller.

The utility model has the advantages that: the utility model discloses can be convenient effectively improve case shell door closer detection efficiency.

Drawings

Fig. 1 is a schematic perspective view of a prior art cabinet closer in an embodiment.

Fig. 2 is a schematic perspective view of a prior art cabinet closer in an embodiment.

FIG. 3 is a schematic perspective view of a torque detection device of the case door closer in the embodiment.

FIG. 4 is a schematic perspective view of a torque detection device of the case closer according to the embodiment.

FIG. 5 is a schematic top view of the torque detection device of the case closer according to the embodiment.

FIG. 6 is a schematic view of a part of a torque detection device of a case door closer in an embodiment in a use state.

Detailed Description

The present invention will be described in further detail with reference to the following specific examples, but the present invention is not limited to the following specific examples.

Examples

In this embodiment, a door closer with a small box shell as shown in fig. 1-2 is taken as an example to provide an efficient detection device, the door closer includes a torque output end 101 and a torque adjusting screw 102, the torque adjusting screw 102 is used for presetting a maximum torque value of the torque output end 101 of the door closer, and when the torque adjusting screw 102 is screwed in a direction of increasing the preset torque, a transmission gear with a hexagon socket hole of the torque output end 101 rotates to increase the output torque.

As shown in fig. 3-6, a torque detection device for a door closer of a case comprises a table top 1, wherein the table top 1 comprises:

the door closer adjusting component is used for rotating and adjusting a torque adjusting screw 102 of the door closer;

and the test load assembly is used for detecting whether the preset torque of the torque output end 101 of the door closer meets the requirement.

The door closer clamping assembly comprises a clamping block 2 and a telescopic pressing rod 3 which are arranged on the table board 1.

And the clamping block 2 is provided with a limiting groove 4 matched with a door closer to be clamped.

And a through hole 21 which is just opposite to a torque output end 101 of the door closer is arranged in the limiting groove 4 of the clamping block 2.

The telescopic pressing rod 3 is in threaded fit with a fixed block arranged on the table board 1, and a hand wheel for manually driving the telescopic pressing rod 3 to stretch is arranged at the tail end of the telescopic pressing rod.

The door closer adjusting component comprises a slide rail 5 arranged on the table board 1 and a stepping motor 6 in sliding fit with the slide rail 5.

The end part of the output shaft of the stepping motor 6 is provided with a driving structure matched with the end part of a torque adjusting screw 102 of the door closer. In this embodiment, the end of the torque adjusting screw 102 is a linear groove, and the driving structure is a linear protrusion.

The stepping motor 6 is driven to slide along the sliding rail 5 through a pneumatic mechanism, the air cylinder 7 is fixed at the bottom of the table board 1, and the bottom of the stepping motor 6 is fixed with the end part of a telescopic air rod of the air cylinder 7.

The test load assembly comprises a bearing 8 arranged on the table board 1 and a horizontally arranged load rotating shaft 9 matched with the bearing 8.

One end of the load rotating shaft 9 penetrates through the through hole 21 on the clamping block 2, and the end is provided with a circumferential limiting structure 91 matched with a torque output end 101 of the door closer. In this embodiment, the circumferential limiting structure 91 is specifically an outer hexagonal protrusion structure.

The other end of the load rotating shaft 9 is hinged with a weight 10 through a connecting rod.

And a supporting rod arranged in the radial direction is arranged on the load rotating shaft 9, and a proximity switch 11 is arranged at the end part of the supporting rod. The proximity switch 11 may be a mechanical contact switch, or a switch based on the principles of ultrasonic waves, laser, etc., as long as it is close to or in contact with the upper surface of the table top 1 to trigger the motion.

When the support rod is vertical to the table top 1 and faces upwards, the connecting rod hinged with the weight 10 faces downwards vertically.

The cylinder 7 controls the expansion of the telescopic air rod by controlling the on-off of the air passage through an electromagnetic valve, and the stepping motor 6, the electromagnetic valve of the cylinder 7 and the proximity switch 11 are electrically connected with the main controller.

When the detection device is used, firstly, the door closer shown in fig. 1-2 is embedded into the limiting groove 4 of the clamping block 2, so that a transmission gear with an inner hexagonal hole of a torque output end 101 of the detection device is matched with a circumferential limiting structure 91, namely an outer hexagonal convex structure, at the end part of the load rotating shaft 9; then, rotating a hand wheel to enable the telescopic compression bar 3 to tightly press and fix the shell of the door closer; at the moment, the support rod on the load rotating shaft 9 is vertical to the table board 1 and faces upwards, and the connecting rod hinged with the weight 10 is vertical to the downwards; open step motor 6 makes its output shaft tip slowly rotatory, then opens the solenoid valve of cylinder 7, makes cylinder 7 drive step motor 6 slides, the protruding one style of calligraphy of step motor 6 output shaft tip withstands the torque adjusting screw 102 back embedding one style of calligraphy recess of door closer lateral wall and realizes spacing cooperation, and the state is as shown in fig. 6, step motor 6 lasts the predetermined moment of torsion of rotatory torque adjusting screw 102 in order to transfer big torque output 101, and torque output 101 output torque rotates this moment load pivot 9, load pivot 9 will through the connecting rod weight 10 slowly swings to the connecting rod and is in the horizontality, this moment branch follow rotatory make proximity switch 11 rotatory 90 degrees press close to mesa 1 after trigger proximity switch 11 switching state. The main controller feeds back and closes the rotation of the stepping motor 6 according to the state of the proximity switch 11, and if the weight 10 maintains the potential energy for a certain time and does not fall back, the detection result of the door closer is qualified. The door closer is tested whether to meet the requirement or not by rotating the torque adjusting screw 102 for a certain number of turns, the transmission gear with the hexagon socket hole of the torque output end 101 outputs a certain proportion of torque correspondingly, and when the torque adjusting screw 102 rotates to the maximum torque of the torque output end 101, the output torque is not increased by slipping and idling. Therefore, the set torque value required by 90-degree rotation of the load rotating shaft 9 can be adjusted by adjusting the weight of the weight and the length of the connecting rod, and whether the torque output end 101 of the door closer can reach the required preset torque under the adjustment of the torque adjusting screw 102 can be efficiently detected by the detection device.

The above are merely examples of the features of the present invention, and do not limit the scope of the present invention. All technical solutions formed by adopting equivalent exchanges or equivalent replacements fall within the protection scope of the present invention.

Claims

1. The utility model provides a torque detection device of case and shell door closer, includes mesa (1), include on mesa (1):

2. The torque detection device of the cabinet door closer according to claim 1, wherein the door closer clamping assembly comprises a clamping block (2) arranged on the table board (1) and a telescopic compression rod (3).

3. The torque detection device of the cabinet door closer according to claim 2, wherein the clamping block (2) is provided with a limiting groove (4) matched with the door closer to be clamped.

4. The torque detection device of the cabinet door closer according to claim 3, wherein a through hole (21) facing the torque output end of the door closer is arranged in the limiting groove (4) of the clamping block (2).

5. The torque detection device for the cabinet door closer according to claim 1, wherein the door closer adjusting assembly comprises a slide rail (5) arranged on the table board (1) and a stepping motor (6) in sliding fit with the slide rail (5).

6. The torque detection device of the cabinet closer according to claim 5, characterized in that the output shaft end of the stepping motor (6) is provided with a driving structure matched with the end of the torque adjusting screw of the door closer.

7. The torque detection device of the cabinet door closer is characterized in that the stepping motor (6) is driven by a pneumatic mechanism to slide along the sliding rail (5), an air cylinder (7) is fixed at the bottom of the table board (1), and the bottom of the stepping motor (6) is fixed with the end part of a telescopic air rod of the air cylinder (7).

8. The torque detection device of the cabinet closer according to claim 3, wherein the test load assembly comprises a bearing (8) arranged on the table board (1), and a horizontally arranged load rotating shaft (9) matched with the bearing (8).

9. The torque detection device of the cabinet door closer is characterized in that one end of the load rotating shaft (9) penetrates through the through hole (21) on the clamping block (2), and a circumferential limiting structure (91) matched with a torque output end of the door closer is arranged at the end; the other end of the load rotating shaft (9) is hinged with a weight (10) through a connecting rod.

10. The torque detection device of the cabinet door closer according to claim 9, wherein the load rotating shaft (9) is provided with a radially arranged strut, and the end of the strut is provided with a proximity switch (11).