A quick-insert vibration-damping negative pressure box and assembly method

Abstract

A quick-plug vibration-damping negative pressure box, comprising a negative pressure box body, a fan, a vibration-damping device, and a locking device; the negative pressure box is placed at the bottom of an integrated stove; the fan comprises a volute, a fixed bracket, and a flange, the top surface of the fixed bracket is connected to the vibration-damping device, and the flange is located at the outlet end of the volute; the vibration-damping device comprises a positioning pin, a top plate, a bottom plate, and a spring, the positioning pin is located on the top plate, and matches the positioning hole on the volute bracket; the top plate has a fixed positioning hole on the upper side, the upper side of which fits the fixed bracket, and the lower side is connected to the spring, and the top plate is made of a magnetic magnet material; the upper side of the bottom plate is fixed to the spring, and the lower side is fixed to the bottom of the negative pressure box; the locking device is located at the outlet of the negative pressure box. And an assembly method for a quick-plug vibration-damping negative pressure box is provided. The present invention improves test efficiency, can effectively reduce fan vibration, and reduce noise generated during fan operation.

Description

Technical Field

[0001] The invention relates to a quick-insertion vibration-damping negative pressure box and an assembly method. Background Art

[0002] Integrated stove is a kitchen appliance that integrates multiple functions such as range hood, gas stove, disinfection cabinet, storage cabinet, etc. For an integrated stove, the negative pressure box is the core component of the integrated stove. During the development process, the negative pressure box will be disassembled for testing. Therefore, the simple disassembly and assembly of a negative pressure box can greatly improve the efficiency of the test.

[0003] The negative pressure box of the existing integrated stove is usually connected by bolts and nuts. In the frequent disassembly and assembly tests, not only is the work procedure cumbersome, but it is also easy to cause thread slippage. While reducing the test efficiency, it also reduces the accuracy of the experimental data. The main moving part in the negative pressure box is the fan system. When the fan system is operating, it is easy to cause vibration and produce a lot of noise. Summary of the invention

[0004] In order to solve the above-mentioned technical problems, effectively improve the speed of disassembly and assembly, and reduce the noise generated during the operation of the fan system, the present invention provides a quick-plug vibration-damping negative pressure box and an assembly method. The fan system can be quickly installed in a plug-in manner to improve the test efficiency. The setting of a vibration reduction device can effectively reduce the vibration of the fan and reduce the noise generated during the operation of the fan.

[0005] The technical solution adopted by the present invention to solve its technical problem is:

[0006] A quick-plug vibration-damping negative pressure box, comprising a negative pressure box body, a fan, a vibration-damping device, and a locking device; the negative pressure box is placed at the bottom of an integrated stove; the fan comprises a volute, a fixed bracket, and a flange, the top surface of the fixed bracket is connected to the vibration-damping device, and the flange is located at the outlet end of the volute; the vibration-damping device comprises a positioning pin, a top plate, a bottom plate, and a spring, the positioning pin is located on the top plate and matches the positioning hole on the volute bracket; the top plate has a fixed positioning hole on its upper side, the upper side of which fits the fixed bracket, and the lower side is connected to the spring, and the top plate is made of a magnetic magnet material; the upper side of the bottom plate is fixed to the spring, and the lower side is fixed to the bottom of the negative pressure box; the locking device is located at the outlet of the negative pressure box.

[0007] Furthermore, the locking device includes a locking nut, a support frame, a locking plate and a fixing plate, the locking nut is located at the outlet of the negative pressure box and is fixed to the support frame; the position of the support frame is consistent with the locking nut, and the support frame is fixed to the outer shell of the negative pressure box; the locking plate is between the fixing plate and the outer shell of the negative pressure box, and the locking plate moves left and right with the rotation of the locking nut, and the locking plate is bonded to the sealing rubber; there is a certain gap between the fixing plate and the outer shell of the negative pressure box, and the locking plate is arranged between the gap, and the sealing rubber is bonded to the side of the fixing plate close to the locking plate.

[0008] Furthermore, the negative pressure box is a horizontal negative pressure box and is rectangular in shape.

[0009] Furthermore, the fixing bracket is in an inverted "concave" shape and is made of iron material. Three positioning holes are provided on the top surface of the fixing bracket.

[0010] Preferably, the damping device is integrally in a long strip shape, the top plate is in a cuboid shape, and the lower bottom plate is in a cuboid shape.

[0011] The number of the springs is 8, and they are arranged in a "2×4" format. The distance between each row of springs is kept consistent. The length of the spring is equal to the distance between the top plate and the bottom plate, and the length of the spring = 4 - 6 mm.

[0012] In the locking device, the number of the locking nuts is 4, which are located at the four corners at the outlet of the negative pressure box. The support frame is in a "J" shape, and the number of the support frames is 4. The locking plate (43) is in a "square frame" shape.

[0013] An assembly method for a quick-insert damping negative pressure box includes the following steps:

[0014] (1) Fix the bracket on the volute with bolts and nuts, and manually rotate the locking nuts on the support frame;

[0015] (2) The locking plate moves towards the negative pressure box as the locking nut rotates;

[0016] (3) Insert the flange of the volute between the fixing plate and the locking plate, connect the positioning holes on the volute bracket with the positioning pins, and the top plate of the damping device magnetically adsorbs the bracket to achieve damping and fixation;

[0017] (4) Manually rotate the locking nut, and the locking plate presses the flange tightly so that the flange fits with the fixing plate.

[0018] The beneficial effects of the present invention are as follows: 1) A set of damping devices are provided in this device, which can effectively reduce the noise generated during the operation of the fan during the operation of the fan. 2) The locking device provided in this device adopts a plug-in method for the installation of the fan, which effectively improves the disassembly and assembly efficiency. 3) The method of driving the locking plate to press tightly by the locking nut is adopted, which improves the sealing performance and avoids the problems of screw thread slipping or loss during continuous disassembly and assembly. Description of the Drawings

[0019] Figure 1 is the overall structural schematic diagram of the negative pressure box in an embodiment.

[0020] Figure 2 is the schematic diagram of the fan volute in an embodiment.

[0021] Figure 3It is a cross-sectional view of the locking device of the present invention.

[0022] Figure 4 is a schematic diagram of a locking device in one embodiment.

[0023] Figure 5 It is a schematic diagram of the volute mounting bracket.

[0024] Figure 6 It is a schematic diagram of the vibration reduction device of the present invention.

[0025] Figure 7 It is a schematic diagram of the connection between the shock absorbing device and the bracket of the present invention. DETAILED DESCRIPTION

[0026] The following is a detailed description with reference to the accompanying drawings and embodiments:

[0027] In order to show the technical scheme and advantages of the present invention in more detail, some relevant examples will now be used for description. The purpose of the present invention is explained by combining the corresponding pictures and examples. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention in any way. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Reference Figure 1 to Figure 7 A quick-plug vibration-damping negative pressure box comprises a negative pressure box body 1, a fan 2, a vibration-damping device 3, and a locking device 4; the negative pressure box 1 is a horizontal negative pressure box in a rectangular shape and is placed at the bottom of the integrated stove; the fan 2 comprises a volute 21, a fixing bracket 22, and a flange 23; the volute 21 is a common and commonly used volute, which can be selected and used according to actual conditions; the fixing bracket 22 is in an inverted "concave" shape and is made of iron material. Three positioning holes are arranged on the top surface of the fixing bracket 22, and the positioning holes 1221 correspond to the positioning pins 31 on the vibration-damping device and have the same height and shape. The number of the positioning holes 2222 is 2, which are nut holes and are opposite to the nut holes on the volute The flange 23 is located at the outlet end of the volute and welded to the volute housing; the vibration reduction device 3 is in the shape of a long strip as a whole, and includes a positioning pin 31, a top plate 32, a bottom plate 33 and a spring 34. The positioning pin 31 is located on the top plate 32, and its size is consistent with the positioning hole 221 on the volute bracket; the top plate 32 is in the shape of a rectangular parallelepiped, with a positioning hole fixed on the upper side, the shape of the upper side fits the bracket, and the spring is connected to the lower side. The top plate 32 is set to a magnetic magnet material; the number of springs is 8, arranged in a "2×4" format, and the spacing between each row of springs is consistent; the lower bottom plate is in the shape of a rectangular parallelepiped, the upper side is fixed to the spring, and the lower side is welded to the bottom of the negative pressure box;

[0029] The locking device 4 is located at the outlet of the negative pressure box and includes a locking nut 41, a support frame 42, a locking plate 43, and a fixing plate 44. The number of the locking nuts 41 is 4, which are located at the four corners of the outlet of the negative pressure box and fixed to the support frame 42. The support frame 42 is in a shape of "Ji", and the number of the support frames 42 is 4, and its position is consistent with that of the locking nuts. The support frames are welded to the outer shell 1 of the negative pressure box. The locking plate 43 is in a shape of "hui", and is located between the fixing plate 44 and the outer shell of the negative pressure box. The locking plate 43 can move left and right as the locking nut rotates. Sealing rubber is bonded around the locking plate 43. There is a certain gap between the fixing plate 44 and the outer shell of the negative pressure box, and the locking plate 43 is arranged in the gap. Sealing rubber is bonded to the side of the fixing plate close to the locking plate.

[0030] In a quick-insert damping negative pressure box of this embodiment, the number of the springs is 8, and the length is equal to the distance between the top plate and the bottom plate. The length of the spring = 4 - 6 mm.

[0031] An assembly method of a quick-insert damping negative pressure box includes the following steps:

[0032] (1) Fix the bracket on the volute with bolts and nuts, and manually rotate the locking nuts on the support frame;

[0033] (2) The locking plate moves towards the negative pressure box as the locking nut rotates;

[0034] (3) Insert the flange of the volute between the fixing plate and the locking plate, connect the positioning holes on the volute bracket with the positioning pins, and the top plate of the damping device magnetically adsorbs the bracket to achieve damping and fixing;

[0035] (4) Manually rotate the locking nut, and the locking plate presses the flange so that the flange fits with the fixing plate.

Claims

1. A quick-insert vibration-damping negative pressure box, characterized in that: It includes a negative pressure box body, a fan, a vibration reduction device, and a locking device; the negative pressure box is placed at the bottom of the integrated stove; the fan includes a volute, a fixing bracket and a flange, the top surface of the fixing bracket is connected to the vibration reduction device, and the flange is located at the outlet end of the volute; the vibration reduction device includes a positioning pin, a top plate, a bottom plate and a spring, the positioning pin is located on the top plate, and a positioning hole matching the positioning pin is provided on the fixing bracket; the upper side of the top plate is in shape consistent with the fixing bracket, and the lower side is connected to the spring, and the top plate is made of magnetic magnet material; the upper side of the bottom plate is fixed to the spring, and the lower side is fixed to the bottom of the negative pressure box; the locking device is located at the outlet of the negative pressure box; The locking device includes a locking nut, a support frame, a locking plate and a fixing plate, the locking nut is located at the outlet of the negative pressure box and is fixed to the support frame; the position of the support frame is consistent with the locking nut, the support frame is fixed to the outside of the negative pressure box shell, and the fixing plate is arranged on the inside of the negative pressure box shell; the locking plate is between the fixing plate and the negative pressure box shell, and the locking plate moves toward the negative pressure box shell or the fixing plate direction as the locking nut rotates, and the locking plate is bonded to the sealing rubber; there is a certain gap between the fixing plate and the negative pressure box shell, and the locking plate is arranged between the gap, and the fixing plate is bonded to the sealing rubber on the side close to the locking plate; The negative pressure box is a horizontal negative pressure box and is rectangular; the fixed bracket is in an inverted "concave" shape and is made of iron material.

2. A quick-insert vibration-damping negative pressure box as claimed in claim 1, characterized in that: The vibration reduction device is in the shape of an elongated strip as a whole, the top plate is in the shape of a rectangular parallelepiped, and the bottom plate is in the shape of a rectangular parallelepiped.

3. A quick-insert vibration-damping negative pressure box as claimed in claim 1, characterized in that: The number of the springs is 8, which are arranged in a "2×4" format. The spacing between each row of springs is consistent, and the length of the spring is equal to the distance between the top plate and the bottom plate. The length of the spring is between 4-6 mm.

4. A quick-insert vibration-damping negative pressure box as claimed in claim 1, characterized in that: In the locking device, the number of the locking nuts is 4, which are located at the four corners of the negative pressure box outlet. The support frame is in the shape of a "X", and the number of the support frames is 4.

5. An assembly method for the quick-insertion vibration-damping negative pressure box according to claim 1, characterized in that: The assembly method comprises the following steps: (1) Fix the fixing bracket to the volute with bolts and nuts, and manually rotate the locking nut on the support bracket; (2) The locking plate moves toward the negative pressure box shell as the locking nut rotates; (3) The flange of the volute is inserted between the fixing plate and the locking plate, the positioning hole on the fixing bracket is connected with the positioning pin, and the top plate of the vibration reduction device magnetically adsorbs the fixing bracket to achieve vibration reduction fixation; (4) Manually rotate the locking nut and the locking plate to press the flange so that the flange fits tightly against the fixing plate.

Images