Ultralow-temperature cooling and heating machine

Abstract

The utility model discloses an ultralow-temperature cooling and heating machine. The ultralow-temperature cooling and heating machine comprises a machine body and a fan cover detachably arranged at the top of the machine body. The fan cover comprises a mounting plate and arc-shaped grooves uniformly arranged around the circumference of the mounting plate, and one end of each arc-shaped groove is provided with a dismounting hole wider than the arc-shaped groove; a positioning rod is arranged at the top of the machine body and comprises a transition block matched with the dismounting hole and a limiting rod matched with the arc-shaped groove; the mounting plate is mounted below the transition block through the dismounting hole and then rotates to enable the arc-shaped groove to be clamped into the limiting rod to achieve assembling and positioning, through the quick dismounting structure, the elastic locking mechanism and further double positioning of the holding part, quick mounting and dismounting of the fan cover are achieved, and the maintenance efficiency and replacement efficiency of the fan cover are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to heating equipment technical field especially a super low temperature cooling and heating machine. BACKGROUND

[0002] As a kind of high-efficiency temperature control equipment capable of stable operation in extreme low temperature environment, super low temperature cooling and heating machine is widely used in the fields such as building heating in severe cold region, industrial refrigeration and special environment temperature control. The host computer usually needs to be exposed to outdoor environment for long-term operation, and the fan and mesh fan cover arranged at the top are the core components to ensure the heat dissipation performance of the equipment.

[0003] At present, the fan cover of super low temperature cooling and heating machine generally adopts closed structure welded or bolted with metal mesh plate, and the surface is covered with anti-rust coating to resist rain and snow erosion. However, under extreme climate conditions (such as high humidity, salt spray environment or frequent freeze-thaw cycle), the metal material of the fan cover is still prone to electrochemical corrosion, which may cause damage to the mesh hole, reduce the structural strength, and even cause damage to the fan blade or risk of foreign matter entering the equipment. In addition, the fixing method of traditional fan cover relies on multiple bolts or welding connection, which requires professional tools and long time operation for disassembly and replacement, and the maintenance efficiency is low, which directly affects the continuity of equipment operation.

[0004] On the other hand, the mesh density and layout of the fan cover directly affect the heat dissipation efficiency and environmental adaptability of the equipment. For example:

[0005] In snowy areas, small-pore dense mesh holes are needed to prevent snow from blocking the air duct;

[0006] In areas with high dust, the size of mesh hole needs to be increased to reduce the dust adhesion rate;

[0007] In high-salt spray environment along the coast, the shape of mesh hole needs to be optimized to balance corrosion resistance and air flow passability.

[0008] However, the mesh hole of the existing fan cover is mostly in fixed mode after installation, and when facing different needs of different customers, the fan cover style also needs to be quickly and flexibly replaced to adapt to different needs. INVENTION CONTENTS

[0009] The utility model provides a super low temperature cooling and heating machine in view of the deficiency in prior art, realizes the quick installation and disassembly of fan cover through quick release structure, elastic locking mechanism and further double positioning of holding portion, and improves the maintenance efficiency and replacement efficiency of fan cover.

[0010] To solve the above technical problems, the utility model solves the problem by the following technical scheme: a super low temperature cooling and heating machine, comprising a machine body and a fan cover detachably arranged on the top of the machine body.

[0011] The fan cover comprises a mounting plate and arc-shaped grooves uniformly arranged around the circumference of the mounting plate, one end of the arc-shaped grooves is provided with a dismounting hole which is larger than the width of the arc-shaped groove;

[0012] The top of the machine body is provided with a positioning rod, the positioning rod comprises a transition block matched with the dismounting hole and a limiting rod matched with the arc-shaped groove;

[0013] The mounting plate is assembled and positioned by rotating the mounting plate after being installed below the transition block to make the arc-shaped groove clamped on the limiting rod.

[0014] In the above scheme, preferably, a jacking sleeve is slidably arranged on the limiting rod, and a jacking spring is arranged between the jacking sleeve and the positioning rod.

[0015] In the above scheme, preferably, the jacking sleeve has a larger diameter at the upper end than the dismounting hole.

[0016] In the above scheme, preferably, the lower end of the positioning rod is threadedly connected with the machine body, and the upper end of the transition block is provided with a hexagonal hole for positioning a wrench.

[0017] In the above scheme, preferably, the positioning rod is provided with a limiting plate abutting against the end face of the machine body.

[0018] In the above scheme, preferably, the outer edge of the mounting plate is provided with a plurality of holding portions, the holding portions comprise a holding ring rotatably arranged and a rotating hole for mounting the holding ring.

[0019] In the above scheme, preferably, the top of the machine body is provided with a clamping buckle matched with the holding ring, and the holding ring is matched with the clamping buckle to realize the circumferential positioning of the mounting plate relative to the machine body.

[0020] In the above scheme, preferably, the clamping buckle comprises a clamping groove and a connecting groove penetrating the clamping groove, and the holding ring is matched with the clamping buckle by entering the clamping groove through the connecting groove.

[0021] In the above scheme, preferably, a plurality of magnets are arranged in the clamping groove, and the holding ring is made of ferromagnetic metal.

[0022] In the above scheme, preferably, the holding portions are symmetrically arranged on both sides of the mounting plate.

[0023] The beneficial effects of the present application are as follows:

[0024] 1. Quick dismounting: through the rotational clamping of the arc-shaped groove and the limiting rod and the elastic support of the jacking spring, the installation or dismounting is quickly completed under single-person operation.

[0025] 2. Anti-loosening design: the sliding cooperation of the jacking sleeve and the limiting rod can absorb vibration energy, and the magnetic attraction positioning of the holding ring can ensure the stability of the fan cover under the working state of the cooling and heating machine.

[0026] 3. Convenient maintenance: the holding part and the clamping buckle are designed to be convenient to operate, which improves the convenience of operators during use and greatly reduces the intervention of tools. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a front view structural schematic diagram of the utility model.

[0028] Figure 2 It is a front view structural schematic diagram of the utility model Figure 1 It is a local enlarged structural schematic diagram of A place in the utility model.

[0029] Figure 3 It is a sectional view structural schematic diagram of the utility model.

[0030] Figure 4 It is a front view structural schematic diagram of the utility model Figure 3 It is a local enlarged structural schematic diagram of B place in the utility model.

[0031] Figure 5 It is an exploded view of the utility model.

[0032] Figure 6 It is a clamping buckle three-dimensional structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0033] The utility model will be further described in detail in combination with the drawings and specific embodiments: refer to Figures 1-6 .

[0034] An ultralow-temperature cooling and heating machine, comprising a machine body 1 and a fan cover 2 detachably arranged on the top of the machine body 1, the fan cover 2 comprises a mesh cover and a mounting plate 201, the mounting plate 201 is fixedly arranged at the bottom of the mesh cover and is integrally formed with the outer edge of the mesh cover, the mounting plate 201 adopts a circular ring-shaped plate, so that the overall fan cover 2 is arranged in a circular shape, as shown in Figure 1 .

[0035] A plurality of groups of arc-shaped grooves 202 are uniformly arranged on the mounting plate 201, the arc-shaped grooves 202 are uniformly arranged around the circumference of the fan cover 2, in the embodiment, six groups of arc-shaped grooves 202 are arranged, and the end of the arc-shaped groove 202 in the counterclockwise direction is provided with a dismounting hole 206, the dismounting hole 206 is throughly arranged with the arc-shaped groove 202, and the diameter of the dismounting hole 206 is greater than the groove width of the arc-shaped groove 202. Figure 2

[0036] ​The top of the body 1 is fixed with a positioning rod 101 corresponding to the number and position of the arc-shaped grooves 202, the upper end of the positioning rod 101 is fixed with a transition block 102, the lower end is fixedly connected with the top wall of the body 1 through threads, the upper end surface of the transition block 102 is inwardly recessed to form a hexagonal hole 103 for positioning of a wrench, that is, after the wrench is matched with the hexagonal hole 103, the lower end of the positioning rod 101 is fixedly connected with the body 1.

[0037] The positioning rod 101 is provided with a limiting plate 104 abutting against the end surface of the body 1, that is, after the hexagonal hole 103 is screwed with the body 1, when the limiting plate 104 abuts against the upper end surface of the body 1, the installation is fixed.

[0038] The limiting plate 104 and the transition block 102 are fixedly connected through a limiting rod 203, the limiting rod 203 is a cylindrical rod, the outer diameter of which is smaller than that of the transition block 102 and is matched with the groove width of the arc-shaped groove 202, that is, the limiting rod 203 and the arc-shaped groove 202 can be gap matched.

[0039] The limiting rod 203 is slidably provided with a jacking sleeve 204, a jacking spring 205 is arranged between the lower end surface of the jacking sleeve 204 and the limiting plate 104, the jacking spring 205 is sleeved on the limiting rod 203 and abuts against the limiting plate 104 and the jacking sleeve 204 at both ends, the outer diameter of the upper end of the jacking sleeve 204 is greater than the hole diameter of the dismounting hole 206, and the outer diameter of the transition block 102 is smaller than the hole diameter of the dismounting hole 206.

[0040] During installation, first, the assembly of the positioning rod 101 is fixed on the upper end surface of the body 1, then, the fan cover 2 is held by hand, the dismounting hole 206 is installed on the transition block 102, the upper end surface of the jacking sleeve 204 abuts against the lower end surface of the mounting plate 201, then, the fan cover 2 is pressed, the jacking spring 205 is compressed, at this time, the arc-shaped groove 202 is in a matched position with the limiting rod 203, the operator rotates the fan cover 2 in a clockwise direction as a whole, the limiting rod 203 is clamped into the arc-shaped groove 202, then, the jacking spring 205 is released, the mounting plate 201 is jacked upward, the fan cover 2 is clamped and installed, and the elastic fixing between the fan cover 2 and the positioning rod 101 is realized, the damping and fastening are realized.

[0041] The outer edge of the mounting plate 201 is provided with a plurality of holding portions 3, in the embodiment, the holding portions 3 are symmetrically arranged on both sides of the mounting plate 201, so as to be held by one person.

[0042] The holding ring 301 is matched with the rotating hole 302 to form a closed holding space between the holding ring 301 and the mounting plate 201 for the operator to operate; the top of the body 1 is provided with a clamping buckle 303 matched with the holding ring 301 after rotation, as shown in Figure 4 The clamping buckle 303 is arranged below the mounting plate 201, and the holding ring 301 is matched with the clamping buckle 303 to realize the circumferential positioning of the mounting plate 201 relative to the body 1.

[0043] Specifically, the clamping buckle 303 includes a clamping groove 304 and a connecting groove 305 connected with the clamping groove 304, the clamping groove 304 is a circular arc groove, the connecting groove 305 is connected with the clamping groove 304, and the connecting groove 305 is an open groove, the open side of the connecting groove 305 is away from the center of the fan cover 1, the holding ring 301 is first pressed against the mounting plate 201, then the limiting rod 203 is clamped into the arc-shaped groove 202, and then the holding ring 301 is rotated counterclockwise in the direction as shown in Figure 4 The holding ring 301 is matched with the clamping buckle 303 by entering the clamping groove 304 through the connecting groove 305, and then the holding ring 301 and the mounting plate 201 are released, the jacking spring 205 releases the jacking mounting plate 201 to make the holding ring 301 abut against the bottom of the clamping groove 304.

[0044] A plurality of magnets 306 are arranged in the bottom of the clamping groove 304, and the material of the holding ring 301 is ferromagnetic metal, when the holding ring 301 is clamped into the bottom of the clamping groove 304, the magnets 306 further attract the holding ring 301, so that the clamping buckle 303 and the holding ring 301 are further fixed, that is, the radial and axial fixing of the mounting plate 201 relative to the top of the body 1 is realized.

[0045] The method for using the above-mentioned ultra-low temperature cooling and heating machine:

[0046] S1: positioning rod installation and adjustment:

[0047] A threaded hole is arranged at the top of the body 1, a wrench is inserted into the hexagonal hole 103, the lower end of the positioning rod 101 is screwed into the threaded hole, and the limiting plate 104 contacts the top surface of the body.

[0048] S2: preliminary positioning of the fan cover:

[0049] The holding rings 301 symmetrically arranged on both sides of the mounting plate 201 (which can freely rotate around the rotating hole 302) are aligned with the transition block 102 of the positioning rod 101;

[0050] The fan cover 2 is pressed downward in the vertical direction, so that the dismounting hole 206 passes through the transition block 102;

[0051] S3: rotating clamping and elastic pressing

[0052] Rotating the fan cover 2, the arc-shaped slot 202 slides along the limiting rod 103, the jacking spring 205 is compressed, and the mounting plate 201 is tightly attached to the top surface of the machine body 1.

[0053] Continue to rotate to the end of the arc-shaped slot 202 completely engages with the limiting rod 103;

[0054] S4: circumferential magnetic attraction locking

[0055] Rotating the holding ring 301, so that it slides into the clamping groove 304 through the engagement groove 305 of the clamping buckle 303;

[0056] The magnet 306 in the clamping groove 304 attracts the ferromagnetic material holding ring 301, completing the circumferential fixation, preventing the fan cover 2 from retreating due to vibration;

[0057] S5: disassembly operation

[0058] Reverse rotation of the holding ring 301 to disengage the clamping groove 304.

[0059] Then reverse rotate the fan cover 2, so that the arc-shaped slot 202 is disengaged from the limiting rod 103, after the disassembly hole 206 is aligned with the limiting rod 103, pull out the fan cover 2 upward.

[0060] The above embodiments are only used to illustrate the technical solutions of the present application, and are not limited thereto; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An ultralow temperature chiller warmer characterized by: The utility model provides a fan cover (2) detachably arranged on the top of the body (1). The fan cover (2) comprises a mounting plate (201) and arc-shaped grooves (202) uniformly arranged around the circumference of the mounting plate (201), and one end of each arc-shaped groove (202) is provided with a dismounting hole (206) larger than the groove width of the arc-shaped groove (202). The top of the body (1) is provided with a positioning rod (101), and the positioning rod (101) comprises a transition block (102) matched with the dismounting hole (206) and a limiting rod (203) matched with the arc-shaped groove (202). The mounting plate (201) is assembled and positioned by rotating the mounting plate (201) after the mounting plate (201) is loaded below the transition block (102) through the dismounting hole (206) so that the arc-shaped groove (202) is clamped into the limiting rod (203).

2. A cryothermostat according to claim 1, characterized in that: A jacking sleeve (204) is slidably arranged on the limiting rod (203), and a jacking spring (205) is arranged between the jacking sleeve (204) and the positioning rod (101).

3. A cryothermostat according to claim 2, characterized in that: The upper end of the jacking sleeve (204) has a diameter larger than the hole diameter of the dismounting hole (206).

4. A cryothermostat according to claim 1, characterized in that: The lower end of the positioning rod (101) is threadedly connected with the body (1), and the transition block (102) at the upper end of the positioning rod (101) is provided with a hexagonal hole (103) for positioning by a wrench.

5. A cryothermostat according to claim 4, characterized in that: The positioning rod (101) is provided with a limiting plate (104) abutting against the end face of the body (1).

6. An ultralow temperature freezer as defined in claim 1, wherein: The outer edge of the mounting plate (201) is provided with a plurality of holding portions (3), and each holding portion (3) comprises a holding ring (301) rotatably arranged and a rotating hole (302) for mounting the holding ring (301).

7. An ultra-low temperature cooling and heating machine according to claim 6, characterized in that: The top of the body (1) is provided with a clamping buckle (303) matched with the holding ring (301), and the holding ring (301) is circumferentially positioned relative to the body (1) after the holding ring (301) is matched with the clamping buckle (303).

8. A cryothermostat according to claim 7, characterized in that: The clamping buckle (303) comprises a clamping groove (304) and a connection groove (305) penetrating through the clamping groove (304), and the holding ring (301) is clamped and matched with the clamping buckle (303) by entering the clamping groove (304) through the connection groove (305).

9. A cryothermostat according to claim 8, characterized in that: A plurality of magnets (306) are arranged in the clamping groove (304), and the holding ring (301) is made of ferromagnetic metal.

10. A cryothermostat according to claim 6, characterized in that: The holding portions (3) are symmetrically arranged on both sides of the mounting plate (201).

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