Lock catch special for heat preservation box

Abstract

The utility model aims to provide a special lock catch for an incubator, which comprises a base fixed on an incubator cover and a lock hook matched with the base to lock an inner container of the incubator, a bolt is inserted on the base, and a torsion spring for springing the lock hook is arranged on the outer side of the bolt, so that the top of the lock hook is always subjected to a force for rotating away from the base. A fixing pin is inserted into the base, after the fixing pin is completely inserted into the base and the lock hook, the base and the lock hook can be interlocked, and after the fixing pin is completely inserted into the base, an anti-back part is arranged at the tail end of the fixing pin. The utility model has the beneficial effects that the bolt for mounting the torsion spring is improved into a three-section type, and after the bolt in the middle fixes the torsion spring, the base and the lock hook are connected by inserting two fixing pins from two sides, so that the base and the lock hook are interlocked; therefore, the base and the lock hook cannot be self-disassembled under the action of any external force or overlarge elastic force of the spring, and the firmness of integral connection between the base and the lock hook is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of insulation box components, and in particular relates to a special lock buckle for an insulation box. Background Art

[0002] An insulated box is a bag with heat preservation performance when used. With the improvement of living standards, enjoying various delicacies with family outdoors has become a healthy and natural lifestyle. Insulated boxes have attracted attention from the catering industry for their safety, environmental protection, cold and heat preservation, and convenience of carrying. There are many types of insulated boxes on the market, but most of them differ in appearance and material. When closed, the insulated boxes use a lock hook to lock the box body to fix the box cover and the box body, and the lock hook is usually installed on the base, and then fixed to the box cover through the base. A torsion spring is installed between the lock hook and the base to make the lock hook firmly clamp the box cover, but because the installation of the torsion spring requires the use of a pin to fix it to the base, and then the lock hook is usually directly buckled on the pin, when the elastic force of the torsion spring is too large or the lock hook is pulled by an external force, it will cause the lock hook and the base to disintegrate, and the box cover and the box body cannot be fixed. Summary of the invention

[0003] To achieve the above-mentioned purpose, the specific technical scheme of the utility model is: a special lock for an incubator, comprising a base fixed on the cover of the incubator and a lock hook cooperating with the base to lock the inner liner of the incubator, a latch is inserted into the base, and a torsion spring for bouncing the lock hook is provided on the outer side of the latch, so that the top of the lock hook is always subjected to a force to rotate away from the base, a fixing pin is inserted into the base, and after the fixing pin is fully inserted into the base and the lock hook, the base and the lock hook can be interlocked.

[0004] Based on the above technical solution, an anti-retraction portion is further provided at the end of the fixing pin, and when the fixing pin is fully inserted into the base, the anti-retraction portion will engage with the base.

[0005] Based on the above technical solution, two first positioning seats and a second positioning seat are fixed on the base, and the torsion spring can be installed on the base by inserting the pin between the two first positioning seats. Two third positioning seats and a mounting seat are fixed on the lock hook, and a slot for the pin to be inserted is provided on the mounting seat, so that the lock hook can be stuck on the base.

[0006] Based on the above technical solution, a mounting cavity for inserting the third positioning seat is further provided between the first positioning seat and the second positioning seat. When the third positioning seat is inserted into the mounting cavity, the fixing pin can pass through the second positioning seat, the third positioning seat and the first positioning seat in sequence to complete the interlocking between the base and the locking hook.

[0007] Based on the above technical solution, further, a blocking piece for positioning the pin is fixed inside the first positioning seat at the insertion end of the pin.

[0008] Further based on the above technical solution, the bottom of the lock hook is fixedly connected with a hook body, and the hook body is provided with an anti-slip portion.

[0009] Further based on the above technical solution, a presser foot is extended from the torsion spring, and a positioning groove for limiting the presser foot is provided on the lock hook.

[0010] Based on the above technical solution, arc-shaped avoidance grooves are further provided on the left and right end surfaces of the locking hook.

[0011] Compared with the prior art, the utility model has the following beneficial effects: by improving the latch for installing the torsion spring into a three-stage arrangement, after the latch in the middle completes the fixing of the torsion spring, two fixing pins can be inserted from both sides to connect the base and the lock hook, so that the base and the lock hook are interlocked, so that the base and the lock hook will not disintegrate by themselves no matter what kind of external force or excessive spring elastic force is applied, thereby improving the firmness of the overall connection between the base and the lock hook. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0013] Figure 1 This is a reference schematic diagram of the structural state of the lock hook of the utility model after rotation.

[0014] Figure 2 This is a reference schematic diagram of the overall structural state of the utility model.

[0015] Figure 3 This is a reference schematic diagram of the cross-sectional structural state of the utility model.

[0016] Figure 4 This is a reference schematic diagram of the internal structural state of the base of the utility model.

[0017] Figure 5 This is a reference schematic diagram of the internal structure of the lock hook of the utility model.

[0018] Figure 6 This is a reference schematic diagram of the assembly structure state of the utility model and the heat preservation box.

[0019] Explanation of markings in the figure: 1. Base; 2. Lock hook; 3. Torsion spring; 4. Positioning groove; 5. Presser foot; 6. Latch; 7. Fixing pin; 8. Anti-retraction part; 9. First positioning seat; 10. Baffle; 11. Second positioning seat; 12. Mounting cavity; 13. Third positioning seat; 14. Mounting seat; 15. Bayonet; 16. Hook body; 17. Anti-slip part; 18. Avoidance groove. DETAILED DESCRIPTION

[0020] The embodiments of the present disclosure are described in detail below in conjunction with the accompanying drawings. The implementation methods of the present disclosure are explained below through specific examples. Those skilled in the art can easily understand other advantages and effects of the present disclosure from the contents disclosed in this specification, which are further explained below in conjunction with the accompanying drawings.

[0021] See also Figure 1-6 It can be known that an embodiment of the utility model is a special lock for an incubator, comprising a base 1 fixed on the incubator cover and a lock hook 2 cooperating with the base 1 to lock the inner liner of the incubator, two first positioning seats 9 and a second positioning seat 11 are fixed on the base 1, a mounting cavity 12 is provided between the first positioning seat 9 and the second positioning seat 11, a latch 6 is inserted between the two first positioning seats 9, and a torsion spring 3 is provided on the outer side of the latch 6 for popping open the base 1 and the lock hook 2, two third positioning seats 13 and a mounting seat 14 are fixed on the lock hook 2, a bayonet 15 for the latch 6 to be inserted is provided inside the mounting seat 14, and the third positioning seat 13 can be inserted into the mounting cavity 12, fixing pins 7 are inserted at both ends of the base 1, when the third positioning seat 13 is inserted into the mounting cavity 12, the fixing pin 7 can pass through the second positioning seat 11, the third positioning seat 13 and the first positioning seat 9 in sequence, and interlock the base 1 and the lock hook 2.

[0022] Furthermore, an anti-retraction portion 8 is provided at the end of the fixing pin 7 . When the anti-retraction portion 8 is fully inserted into the base 1 , the anti-retraction portion 8 will engage with the base 1 .

[0023] Furthermore, a blocking piece 10 for positioning the latch pin 6 is fixed inside the first positioning seat 9 close to the insertion end of the latch pin 6 .

[0024] Furthermore, a hook body 16 is fixedly connected to the bottom of the locking hook 2, and an anti-slip portion 17 is provided on the hook body 16. The hook body 16 can cooperate with a connecting seat on the inner liner of the thermal insulation box, and the connecting seat also has a component that cooperates with the anti-slip portion 17.

[0025] Furthermore, a presser foot 5 extends from the torsion spring 3 , and a positioning groove 4 for limiting the presser foot 5 is provided on the lock hook 2 . The presser foot 5 pushes the lock hook 2 in the positioning groove 4 .

[0026] Furthermore, arc-shaped avoidance grooves 18 are provided on the left and right end surfaces of the lock hook 2 to avoid motion interference when the lock hook 2 rotates around the base 1.

[0027] In summary, the above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present disclosure should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A lock buckle for an incubator, comprising a base (1) fixed on an incubator cover and a lock hook (2) cooperating with the base (1) to lock an inner liner of the incubator, characterized in that: A latch (6) is inserted into the base (1), and a torsion spring (3) for bouncing the lock hook (2) is provided on the outer side of the latch (6), so that the top of the lock hook (2) is always subjected to a force for rotating away from the base (1). A fixing pin (7) is inserted into the base (1), and after the fixing pin (7) is fully inserted into the base (1) and the lock hook (2), the base (1) and the lock hook (2) can be interlocked.

2. A special lock buckle for an incubator according to claim 1, characterized in that: An anti-retraction portion (8) is provided at the end of the fixing pin (7), and when the fixing pin (7) is fully inserted into the base (1), the anti-retraction portion (8) will engage with the base (1).

3. The special lock buckle for the incubator according to claim 1, characterized in that: At least two first positioning seats (9) and a second positioning seat (11) are fixed on the base (1), and a latch (6) is inserted between the two first positioning seats (9) to mount the torsion spring (3) on the base (1). At least two third positioning seats (13) and a mounting seat (14) are fixed on the lock hook (2), and a bayonet (15) is provided on the mounting seat (14) for the latch (6) to be inserted into, so that the lock hook (2) can be clamped on the base (1).

4. A special lock buckle for an incubator according to claim 3, characterized in that: An installation cavity (12) into which the third positioning seat (13) can be inserted is provided between the first positioning seat (9) and the second positioning seat (11); when the third positioning seat (13) is inserted into the installation cavity (12), the fixing pin (7) can sequentially pass through the second positioning seat (11), the third positioning seat (13) and the first positioning seat (9), thereby completing the interlocking between the base (1) and the locking hook (2).

5. The special lock buckle for the incubator according to claim 3, characterized in that: A blocking piece (10) for positioning the latch pin (6) is fixed inside the first positioning seat (9) at the insertion end of the latch pin (6).

6. The special lock buckle for the incubator according to claim 1, characterized in that: The bottom of the locking hook (2) is fixedly connected to a hook body (16), and an anti-slip portion (17) is provided on the hook body (16).

7. The special lock buckle for the incubator according to claim 1, characterized in that: A presser foot (5) extends from the torsion spring (3), and a positioning groove (4) for limiting the position of the presser foot (5) is provided on the lock hook (2).

8. The special lock buckle for the incubator according to claim 1, characterized in that: The left and right end surfaces of the locking hook (2) are provided with arc-shaped avoidance grooves (18).

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