Threshold of cold storage

Abstract

The utility model belongs to the technical field of refrigeration houses, and particularly relates to a refrigeration house threshold which comprises a door frame, and a supporting piece is fixedly connected between the inner walls of the two sides of the door frame. The pull rod is pulled, the pull rod drives the movable plate to slide on the guide rod through the flexible steel rope and compress the first spring, the movable plate drives the bayonet lock to be separated from the clamping groove, the protective plate is moved to drive the positioning pin to be separated from the positioning groove, and the damaged threshold body in the multiple threshold bodies is replaced. The protective plate is placed on the supporting piece, the stability between the protective plate and the doorsill body is improved through clamping of the positioning pin and the positioning groove, meanwhile, the tension on the pull rod is released, the first spring in the compressed state is reset, the first spring drives the clamping pin to be clamped with the clamping groove through the moving plate, and the protective plate and the supporting piece are fixed. Therefore, when the doorsill body is replaced, professional tools are not needed, the slipping phenomenon is avoided, and the stability is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to cold storage technical field, concretely is a cold storage threshold. BACKGROUND

[0002] In the daily operation of the cold storage, the cold storage threshold as the key structural component separating the inside and outside environment of the cold storage, its performance and maintenance convenience have important influence on the overall operation efficiency and use cost of the cold storage.

[0003] Chinese public authorization invention: CN217400693U discloses a cold storage threshold and cold storage. The cold storage threshold includes a support structure arranged at the bottom of the door of the cold storage, a threshold structure installed on the upper side of the support structure and detachably connected with the support structure, the threshold structure includes a plurality of threshold bodies, and the plurality of threshold bodies are arranged along the same straight line. The cold storage threshold provided by the utility model is detachably provided with the threshold structure through the support structure, so that the threshold structure can be quickly replaced when it is damaged, and the technical problem that the concrete structure is used as the threshold in the prior art needs to pause the use of the cold storage during maintenance and maintenance. At the same time, the threshold structure is composed of a plurality of threshold bodies, which is conducive to realizing the replacement of the threshold structure, that is, only the damaged threshold body can be replaced, and the cost is saved. The cold storage provided by the utility model comprises the above cold storage threshold.

[0004] However, the device still has certain problems, and in the actual use process, however, the first protective layer of the threshold body and the threshold body are detachably connected through screws. However, in actual application, the screw connection mode has certain limitations. After being disassembled and assembled for many times, the screw is prone to slipping, which causes connection failure and affects the normal use of the threshold. Moreover, professional tools are needed when disassembling and assembling the screw, and the operation is not convenient, which increases the maintenance difficulty, therefore, we propose a cold storage threshold to solve the above problems. UTILITY MODEL CONTENTS

[0005] (I) Technical problem solved

[0006] In view of the deficiencies of the prior art, the utility model provides a cold storage threshold, which solves the problems proposed in the background art.

[0007] (II) Technical scheme

[0008] The utility model discloses in order to realize the above-mentioned purpose specifically adopts the following technical scheme:

[0009] A cold storage door sill, comprising a door frame, a support piece is fixedly connected between the inner walls of the two sides of the door frame, a placing groove is formed in the top of the support piece, a plurality of door sill bodies are movably connected in the placing groove, a positioning groove is formed in the top of the door sill body, four mounting blocks are welded on the top of the support piece, a clamping groove is formed in one side of the mounting block, a protective plate is movably connected on the top of the support piece, a plurality of positioning pins are welded on the bottom of the protective plate, the positioning pins are clamped with the corresponding positioning grooves, a cavity is formed in the protective plate, four U-shaped plates are fixedly connected on the bottom inner wall of the cavity, guide rods are welded between the inner walls of the two sides of the U-shaped plate, the same side two guide rods are slidably connected with the same moving plate, a first spring is fixedly connected between one side of the moving plate and the inner wall of the corresponding U-shaped plate, the first spring is movably sleeved on the corresponding guide rod, two clamping pins are fixedly connected on the other side of the moving plate, the clamping pins are clamped with the corresponding clamping grooves, a flexible steel rope is fixedly connected on one side of the moving plate, two fixed pulleys are rotatably connected on the bottom inner wall of the cavity, the end of the flexible steel rope is wrapped around one side of the corresponding fixed pulley and extends out of the protective plate and is fixedly connected with a pull rod.

[0010] Further, a limiting rod is fixedly connected on the rear inner wall of the cavity, and a connecting rod is slidably connected on the limiting rod.

[0011] Further, a second spring is fixedly connected between the end of the connecting rod and the rear inner wall of the cavity, and the second spring is movably sleeved on the limiting rod.

[0012] Further, the other end of the connecting rod extends out of the protective plate and is fixedly connected with one side of the pull rod, a circular hole is formed in the front inner wall of the cavity, and the inner wall of the circular hole is slidably connected with the outer side of the connecting rod.

[0013] Further, four rectangular holes are formed in the bottom inner wall of the cavity, and the inner wall of the rectangular hole is not in contact with the outer side of the corresponding mounting block.

[0014] Further, a plurality of reinforcing pieces are fixedly connected on the bottom of the support piece.

[0015] (Three) beneficial effects

[0016] Compared with the prior art, the cold storage door sill has the following beneficial effects:

[0017] The utility model discloses, through pulling the pull rod, and the pull rod is driven the slide of moving board on the guide rod through the flexible steel rope and carries out compression to the first spring, and moving board drives the separation of bayonet lock and card slot, and moving the protection board drives the separation of positioning pin and positioning groove, carries out the replacement of the damaged door sill body among multiple door sill bodies, after replacement, places the protection board to the support piece, through the clamping of positioning pin and positioning groove, increases the stability between protection board and door sill body, and simultaneously relaxes the tension of pull rod, and the first spring resets under the compression state, and the first spring drives the clamping of bayonet lock and card slot through moving board, fixes protection board and support piece, so that when replacing the door sill body, need not using professional tool, and will not appear the phenomenon of skidding, improves stability. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0019] Figure 2 It is the three-dimensional structure schematic diagram of the utility model protection board removal;

[0020] Figure 3 It is the three-dimensional structure schematic diagram of the utility model protection board and positioning pin connection inclination;

[0021] Figure 4 It is the three-dimensional structure schematic diagram of the utility model protection board cut open;

[0022] Figure 5 It is the three-dimensional structure schematic diagram of the utility model Figure 4 Partial three-dimensional structure schematic diagram;

[0023] Figure 6 It is the three-dimensional structure schematic diagram of the utility model.

[0024] In the drawing: 1, door frame;2, support piece;3, place groove;4, door sill body;5, positioning groove;6, mounting block;7, card slot;8, protection board;9, positioning pin;10, cavity;11, U-shaped plate;12, guide rod;13, moving board;14, first spring;15, bayonet lock;16, flexible steel rope;17, fixed pulley;18, pull rod;19, limit rod;20, connecting rod;21, second spring;22, rectangular hole;23, reinforcing part. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the range of protection of the utility model.

[0026] Embodiment

[0027] As Figures 1-6 shown, the utility model discloses a cold storage threshold of one embodiment proposes, including door frame 1, and the inside wall between both sides of door frame 1 is fixedly connected with support piece 2, and the top of support piece 2 is provided with the placing groove 3, and the inside movable contact of placing groove 3 has a plurality of threshold body 4, and the top of threshold body 4 is provided with the locating slot 5, and the top of support piece 2 is welded with four mounting blocks 6, and one side of mounting block 6 is provided with the clamping groove 7, and the top movable contact of support piece 2 has the protection plate 8, and the bottom of protection plate 8 is welded with a plurality of positioning pin 9, and positioning pin 9 is clamped with corresponding locating slot 5, and the cavity 10 is set up on protection plate 8, and four U-shaped plates 11 are fixedly connected on the bottom inner wall of cavity 10, and the inside wall between both sides of U-shaped plate 11 is welded with guide rod 12, and the same side two guide rods 12 are slidably connected with the same moving plate 13, and the inside wall between one side of moving plate 13 and corresponding U-shaped plate 11 is fixedly connected with first spring 14, and first spring 14 is movably sleeved on corresponding guide rod 12, and the other side of moving plate 13 is fixedly connected with two clamping pins 15, and clamping pin 15 is clamped with corresponding clamping groove 7, and one side of moving plate 13 is fixedly connected with flexible steel wire 16, and two fixed pulleys 17 are rotatably connected on the bottom inner wall of cavity 10, and the end of flexible steel wire 16 is passed through the one side of corresponding fixed pulley 17 and extends to the outside fixed connection of pull rod 18 of protection plate 8, and by pulling pull rod 18, pull rod 18 drives connecting rod 20 to slide on limiting rod 19 and stretches second spring 21, simultaneously, pull rod 18 drives corresponding moving plate 13 to slide on guide rod 12 and compresses first spring 14 through flexible steel wire 16, and moving plate 13 drives corresponding clamping pin 15 to move, so that clamping pin 15 is separated from corresponding clamping groove 7, then moving protection plate 8, and protection plate 8 drives positioning pin 9 to be separated from corresponding locating slot 5, then the damaged threshold body 4 of a plurality of threshold body 4 is replaced, after replacement, protection plate 8 is placed on support piece 2, and the stability between protection plate 8 and threshold body 4 is increased by clamping positioning pin 9 with corresponding locating slot 5, and the tension of pull rod 18 is relaxed, and first spring 14 is reset under the compression state, and first spring 14 drives clamping pin 15 to be clamped with corresponding clamping groove 7 through moving plate 13, so that protection plate 8 is fixed with support piece 2, so that when replacing threshold body 4, professional tools are not needed, and the phenomenon of skidding does not appear, and the stability is improved.

[0028] In some embodiments, the rear inner wall of cavity 10 is fixedly connected with limiting rod 19, and connecting rod 20 is slidably connected on limiting rod 19, and limiting rod 19 is set, which plays a positioning role.

[0029] In some embodiments, the end of the connecting rod 20 is fixedly connected with the second spring 21 between the rear side inner wall of the cavity 10, and the second spring 21 is movably sleeved on the limiting rod 19.

[0030] In some embodiments, the other end of the connecting rod 20 extends to the outside of the protective plate 8 and is fixedly connected with one side of the pull rod 18, a circular hole is formed on the front side inner wall of the cavity 10, the inner wall of the circular hole is in sliding connection with the outer side of the connecting rod 20, and the connecting rod 20 plays a limiting role.

[0031] In some embodiments, four rectangular holes 22 are formed on the bottom inner wall of the cavity 10, and the inner wall of the rectangular hole 22 is not in contact with the outer side of the corresponding mounting block 6.

[0032] In some embodiments, a plurality of reinforcing members 23 are fixedly connected to the bottom of the support 2.

[0033] When it is necessary to replace the damaged door sill body 4, the pull rod 18 is pulled, the pull rod 18 drives the connecting rod 20 to slide on the limiting rod 19 and stretch the second spring 21, the pull rod 18 drives the corresponding moving plate 13 to slide on the guide rod 12 and compress the first spring 14 through the flexible steel wire 16, the moving plate 13 drives the corresponding catch pin 15 to move, the catch pin 15 is separated from the corresponding catch groove 7, then the protective plate 8 is moved, the positioning pin 9 is separated from the corresponding positioning groove 5, then the damaged door sill body 4 among the plurality of door sill bodies 4 is replaced, after replacement, the protective plate 8 is placed on the support 2 and is clamped with the corresponding positioning groove 5 through the positioning pin 9, the stability between the protective plate 8 and the door sill body 4 is increased, the pull force on the pull rod 18 is released, the first spring 14 in the compressed state is reset, the first spring 14 drives the catch pin 15 to be clamped with the corresponding catch groove 7 through the moving plate 13, so that the protective plate 8 is fixed with the support 2, when the door sill body 4 is replaced, professional tools are not needed, and the phenomenon of slipping does not occur, and the stability is improved.

[0034] Finally, it should be noted that: the above only describes preferred embodiments of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacements to some technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A cold store door sill comprising a door frame (1), characterized in that: The both sides inner walls of the door frame (1) are fixedly connected with the support piece (2), the top of the support piece (2) is provided with the placing groove (3), a plurality of door sill bodies (4) are movably connected in the placing groove (3), the top of the door sill body (4) is provided with the positioning groove (5), the top of the support piece (2) is welded with the four mounting blocks (6), one side of the mounting block (6) is provided with the clamping groove (7), the top of the support piece (2) is movably connected with the protection plate (8), the bottom of the protection plate (8) is welded with the plurality of positioning pins (9), the positioning pin (9) is clamped with the corresponding positioning groove (5), the protection plate (8) is provided with the cavity (10), the bottom inner wall of the cavity (10) is fixedly connected with the four U-shaped plates (11), the both sides inner walls of the U-shaped plate (11) are welded with the guide rod (12), the same side two guide rods (12) are slidably connected with the same moving plate (13), one side of the moving plate (13) and the corresponding one side inner wall of the U-shaped plate (11) are fixedly connected with the first spring (14), the first spring (14) is movably sleeved on the corresponding guide rod (12), the other side of the moving plate (13) is fixedly connected with the two clamping pins (15), the clamping pin (15) is clamped with the corresponding clamping groove (7), one side of the moving plate (13) is fixedly connected with the flexible steel wire (16), the bottom inner wall of the cavity (10) is rotatably connected with the two fixed pulleys (17), the end of the flexible steel wire (16) is wound around one side of the corresponding fixed pulley (17) and extends to the outside of the protection plate (8) and is fixedly connected with the pull rod (18).

2. A cold store door sill according to claim 1, characterised in that: The rear side inner wall of the cavity (10) is fixedly connected with the limiting rod (19), and the connecting rod (20) is slidably connected with the limiting rod (19).

3. A cold store door threshold as claimed in claim 2, characterised in that: The end of the connecting rod (20) and the rear side inner wall of the cavity (10) are fixedly connected with the second spring (21), and the second spring (21) is movably sleeved on the limiting rod (19).

4. A cold store door threshold as claimed in claim 3, characterised in that: The other end of the connecting rod (20) extends to the outside of the protection plate (8) and is fixedly connected with one side of the pull rod (18), and the front side inner wall of the cavity (10) is provided with a circular hole.

5. A cold store door threshold as claimed in claim 4, characterised in that: The bottom inner wall of the cavity (10) is provided with four rectangular holes (22), and the inner wall of the rectangular hole (22) is not in contact with the outer side of the corresponding mounting block (6).

6. A cold store door threshold as claimed in claim 5, characterised in that: The bottom of the support piece (2) is fixedly connected with a plurality of reinforcing pieces (23).

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