Storage rack and code spraying device

Abstract

The utility model discloses a storage rack and a code spraying device. The storage rack comprises a first guide rail and a second guide rail, the first guide rail comprises a first grid structure arranged in the longitudinal direction, the first grid structure comprises a plurality of first protrusions arranged in the longitudinal direction and first grooves located between the adjacent first protrusions, and at least part of the lower surface of each first protrusion is a first inclined face obliquely arranged relative to the horizontal plane; the supporting assembly comprises a supporting piece and a first elastic lock catch, the first elastic lock catch comprises a first clamping jaw capable of stretching into the first groove, and the first elastic lock catch is arranged to enable the first clamping jaw to stretch into the first groove under the action of the elastic force of the first elastic lock catch. When the supporting piece is subjected to upward external force, the first clamping jaw can be switched to extend into the adjacent previous first groove through the first inclined surface; and the tray is used for bearing an object to be subjected to code spraying and is mounted on the supporting piece. According to the commodity shelf provided by the embodiment of the utility model, the tray can be prevented from falling accidentally, and the convenience of adjusting the position of the tray is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a code spraying equipment field, especially in a kind of storage rack and code spraying device. BACKGROUND

[0002] In code spraying device, it needs to use storage rack to carry the code to be sprayed and to be positioned to the code to be sprayed, to ensure printing accuracy.Storage rack includes the tray of carrying the code to be sprayed, and the tray can be driven along the position parallel to the code spraying surface by guide rail and matched structure to adjust.

[0003] The storage rack in the related art realizes the position locking of tray relative to guide rail by hand-screwed locking screw, and the tray will fall along guide rail under the influence of gravity in the case where screw is not locked. SUMMARY

[0004] The utility model provides a kind of storage rack and code spraying device, can avoid the accidental falling of tray, and improve the convenience of adjusting the position of tray.

[0005] Firstly, the utility model embodiment provides a kind of storage rack, for code spraying device, the storage rack includes: first guide rail, the first guide rail includes the first grid structure being arranged along the longitudinal direction, the first grid structure includes the first protrusion being arranged along the longitudinal direction and the first recess between adjacent first protrusion, at least part of the lower surface of each first protrusion is first inclined surface being arranged relative to horizontal plane obliquely;Supporting component includes support and first elastic lock, the first elastic lock is connected with the support, the support is movable along the first grid structure, the first elastic lock includes the first jaw capable of being inserted into the first recess, the first elastic lock is arranged to make the first jaw stretch into the first recess under the action of its elastic force, and when the support is subjected to upward external force, the first jaw can be switched to stretch into adjacent last first recess by the first inclined surface.

[0006] According to the foregoing embodiment of the utility model in the first aspect, the support includes first mounting portion, the first mounting portion is provided with first opening, the first elastic lock is installed on the first mounting portion and located on the side of the first mounting portion away from the first grid structure, and the first jaw can be inserted into the first recess through the first opening.

[0007] According to any one of the preceding embodiments of the first aspect of the present application, the first elastic lock catch comprises a first rotating member and a first elastic member, one end of the first rotating member is the first clamping jaw, the first rotating member is rotatably installed on the first mounting portion, the first elastic member connects the first rotating member and the first mounting portion, and in the state that the first rotating member is not subjected to external force, the first elastic member enables the first rotating member to rotate so that the first clamping jaw extends towards the first groove.

[0008] According to any one of the preceding embodiments of the first aspect of the present application, the first rotating member further comprises a first pressing portion, the first pressing portion is arranged on opposite sides of the rotating center of the first rotating member separately from the first clamping jaw, and when the first pressing portion is pressed by a first preset external force, the first clamping jaw is enabled to move away from the first groove.

[0009] According to any one of the preceding embodiments of the first aspect of the present application, the support member further comprises a second mounting portion, the second mounting portion is located on the side of the first mounting portion away from the first grid structure, and has a containing space between the first mounting portion and the second mounting portion, the containing space being capable of containing at least part of the first rotating member, the second mounting portion is provided with a second opening, and at least part of the first pressing portion is exposed from the second opening.

[0010] According to any one of the preceding embodiments of the first aspect of the present application, at least part of the surface of the first clamping jaw towards the lower surface of the first protrusion is a second inclined surface.

[0011] According to any one of the preceding embodiments of the first aspect of the present application, the first inclined surface is inclined at an angle of 15° to 75° with respect to the horizontal plane.

[0012] According to any one of the preceding embodiments of the first aspect of the present application, the support member comprises a cross beam, and the storage rack further comprises: a second guide rail, the second guide rail being installed on the cross beam, the second guide rail comprising a second grid structure arranged along a first transverse direction, the second grid structure comprising a plurality of second protrusions arranged along the first transverse direction and a second groove located between adjacent second protrusions, at least part of the same side surface of each second protrusion being a third inclined surface inclined with respect to a first plane, the first plane being a plane perpendicular to the first transverse direction, the tray being connected to the support assembly through the second guide rail, and the tray being movable along the second grid structure; and a second elastic lock catch, the second elastic lock catch comprising a second clamping jaw capable of extending into the second groove, the second elastic lock catch being arranged to enable the second clamping jaw to extend into the second groove under the action of its own elastic force, and when the tray is subjected to a one-way external force parallel to the first transverse direction, the second clamping jaw is capable of switching to extend into an adjacent second groove through the third inclined surface.

[0013] According to any one of the preceding embodiments of the first aspect of the present application, the tray comprises a third mounting portion, the second elastic lock catch comprises a second rotating member and a second elastic member, one end of the second rotating member is the second clamping jaw, the second rotating member is rotatably mounted on the third mounting portion, the second elastic member connects the second rotating member and the third mounting portion, and in the state that the second rotating member is not subjected to external force, the second elastic member causes the second rotating member to turn so that the second clamping jaw extends towards the second groove.

[0014] In a second aspect, the utility model provides a kind of code spraying device, it includes: code spraying shell;Code spraying word car component, is installed in the code spraying shell;And according to any one of the preceding embodiments of the first aspect of the present application, the shelf is mounted in the code spraying shell.

[0015] According to the shelf and code spraying device of the utility model embodiment, the shelf includes a first guide rail, a support assembly, and a tray. The first guide rail includes a first grid structure arranged in the longitudinal direction, which includes a plurality of first protrusions arranged in the longitudinal direction and a first groove located between adjacent first protrusions. At least part of the lower surface of each first protrusion is a first inclined surface arranged obliquely to the horizontal plane. The support assembly includes a support member and a first elastic lock catch. The first elastic lock catch includes a first clamping jaw that can extend into the first groove. The first elastic lock catch is arranged to extend the first clamping jaw into the first groove under the action of its own elastic force. Therefore, in the state that the shelf is only subjected to gravity, the first clamping jaw of the first elastic lock catch can be clamped in the first groove, achieving locking of the tray in the longitudinal direction and avoiding accidental falling of the tray, thereby improving the stability of the longitudinal position of the tray. When it is necessary to adjust the position of the tray upward, the tray or the support member is lifted upward by an external force. At this time, the first clamping jaw cooperates with the first inclined surface, and the first clamping jaw can be switched to extend into the adjacent upper first groove through the first inclined surface. After the upward external force is removed, the first clamping jaw stays in the current first groove, improving the convenience of adjusting the position of the tray upward and achieving one-way locking of the first elastic lock catch on the longitudinal position of the tray. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from the structures shown in these drawings without creative labor.

[0017] Figure 1 It is a three-dimensional schematic view of an embodiment of the shelf of the present application.

[0018] Figure 2 A cross-sectional schematic view of the structure at the support assembly of the storage rack one embodiment of the utility model when the first elastic lock catch is not unlocked;

[0019] Figure 3 A cross-sectional schematic view of the structure at the support assembly of the storage rack one embodiment of the utility model after the first elastic lock catch is unlocked;

[0020] Figure 4 A cross-sectional schematic view of the structure at the second elastic lock catch of the storage rack one embodiment of the utility model;

[0021] Figure 5 A Figure 4 A local enlarged schematic view of the area A.

[0022] Explanation of reference signs:

[0023] 100 - first guide rail; 110 - first protrusion; 111 - first inclined surface; 120 - first groove;

[0024] 200 - support assembly; 210 - support piece; 211 - first mounting portion; K1 - first opening; 212 - second mounting portion; K2 - second opening; 213 - crossbeam; 220 - first elastic lock catch; 221 - first rotating piece; 2211 - first clamping jaw; F1 - second inclined surface; 2212 - first pressing portion; 222 - first elastic piece;

[0025] 300 - tray; 310 - third mounting portion;

[0026] 400 - second guide rail; 410 - second protrusion; 411 - third inclined surface; 420 - second groove;

[0027] 500 - second elastic lock catch; 510 - second rotating piece; 511 - second clamping jaw; 512 - second pressing portion; 520 - second elastic piece;

[0028] Z - longitudinal direction; X - first transverse direction.

[0029] The realization, functional features and advantages of the utility model will be further described in combination with embodiments and by referring to the drawings. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0031] It should be noted that all directional indications such as upper, lower, left, right, front, back, etc. in the embodiments of the present utility model are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture, as shown in the drawings. If the specific posture changes, the directional indications will also change accordingly.

[0032] In addition, the description of "first", "second" and the like in the present utility model is only for the purpose of description, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled persons in the art. When the combination of technical solutions contradicts each other or cannot be realized, it should be considered that the combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0033] The embodiment of the present utility model provides a storage rack, which is used for a code spraying device. Figure 1 It is a three-dimensional schematic view of an embodiment of the storage rack of the present utility model. The storage rack comprises a first guide rail 100, a support assembly 200 and a tray 300. The support assembly 200 comprises a support piece 210 and a first elastic lock 220. The tray 300 is used for carrying the code to be sprayed, and the tray 300 is installed on the support piece 210.

[0034] Figure 2 It is a cross-sectional view of the structure of the support assembly of an embodiment of the storage rack of the present utility model when the first elastic lock is not unlocked. The first guide rail 100 comprises a first grid structure arranged along the longitudinal direction Z. The first grid structure comprises a plurality of first protrusions 110 arranged along the longitudinal direction Z and a first groove 120 located between adjacent first protrusions 110. At least part of the lower surface of each first protrusion 110 is a first inclined surface 111 arranged obliquely to the horizontal plane. In some embodiments, the entire lower surface of the first protrusion 110 is the first inclined surface 111. In some embodiments, part of the lower surface of the first protrusion 110 is the first inclined surface 111.

[0035] The first elastic lock 220 is connected with the support piece 210. The support piece 210 is movable along the first grid structure. The first elastic lock 220 comprises a first clamping jaw 2211 capable of extending into the first groove 120. The first elastic lock 220 is arranged to extend the first clamping jaw 2211 into the first groove 120 under the action of its own elastic force, and the first clamping jaw 2211 can switch to extend into the adjacent upper first groove 120 through the first inclined surface 111 when the support piece 210 is subjected to an upward external force.

[0036] According to the embodiment of the utility model, the storage shelf comprises a first guide rail 100, a support assembly 200 and a tray 300. The first guide rail 100 comprises a first grid structure arranged along a longitudinal direction Z, the first grid structure comprises a plurality of first protrusions 110 arranged along the longitudinal direction Z and a first groove 120 located between adjacent first protrusions 110, wherein at least part of the lower surface of each first protrusion 110 is a first inclined surface 111 arranged obliquely to a horizontal plane. The support assembly 200 comprises a support piece 210 and a first elastic lock 220, the first elastic lock 220 comprises a first clamping jaw 2211 capable of extending into the first groove 120. The first elastic lock 220 is arranged to extend the first clamping jaw 2211 into the first groove 120 under the action of its own elastic force, so that the first clamping jaw 2211 of the first elastic lock 220 can be clamped in the first groove 120 in the state that the storage shelf is only subjected to gravity, thereby achieving locking of the tray 300 in the longitudinal direction Z, avoiding accidental falling of the tray 300 and improving the stability of the longitudinal Z position of the tray 300. When it is necessary to adjust the position of the tray 300 upward, the tray 300 or the support piece 210 is lifted upward by an external force, at this time, the first clamping jaw 2211 cooperates with the first inclined surface 111, and the first clamping jaw 2211 can be switched to extend into the adjacent upper first groove 120 through the first inclined surface 111, after the upward external force is removed, the first clamping jaw 2211 stays in the current first groove 120, thereby improving the convenience of adjusting the position of the tray 300 upward and achieving one-way locking of the first elastic lock 220 on the longitudinal Z position of the tray 300.

[0037] Figure 3 It is the cross section schematic view of the structure at the support assembly of the utility model storage shelf embodiment after the first elastic lock is unlocked. In some embodiments, by exerting a specific force on the first elastic lock 220, the first elastic lock 220 can be moved against its own elastic force, so that the first clamping jaw 2211 is separated from the first groove 120, thereby achieving unlocking of the first elastic lock 220, and after unlocking, the position of the tray 300 can be adjusted downward along the first grid structure.

[0038] In some embodiments, the support piece 210 comprises a first mounting portion 211. The first mounting portion 211 is provided with a first opening K1. The first elastic lock 220 is mounted on the first mounting portion 211 and located on the side of the first mounting portion 211 away from the first grid structure. The first clamping jaw 2211 can extend into the first groove 120 through the first opening K1. By arranging the first mounting portion 211, stable mounting of the first elastic lock 220 can be achieved, and by arranging the first opening K1, it is ensured that the first clamping jaw 2211 can smoothly extend into and exit the first groove 120.

[0039] In some embodiments, the first elastic lock 220 comprises a first rotating member 221 and a first elastic member 222. The first rotating member 221 has a first clamping jaw 2211 at one end thereof. The first rotating member 221 is rotatably installed on the first mounting portion 211. The first elastic member 222 connects the first rotating member 221 with the first mounting portion 211. In the state that the first rotating member 221 is not subjected to an external force, the first elastic member 222 causes the first rotating member 221 to rotate so that the first clamping jaw 2211 extends towards the first recess 120.

[0040] In the present embodiment, the first rotating member 221 and the first elastic member 222 realize the one-way locking function of the first elastic lock 220 in a relatively simple structure, thereby ensuring the reliability of the use of the first elastic lock 220.

[0041] In some embodiments, the first rotating member 221 further comprises a first pressing portion 2212. The first pressing portion 2212 is arranged on the opposite side of the first clamping jaw 2211 with respect to the rotation center of the first rotating member 221. When the first pressing portion 2212 is pressed by a first preset external force, the first clamping jaw 2211 is caused to move away from the first recess 120. When the first pressing portion 2212 is pressed by the first preset external force, the first rotating member 221 rotates, and the first clamping jaw 2211 moves away from the first recess 120. At this time, the unlocking of the first elastic lock 220 can cause the tray 300 to be adjusted to a lower position along the first grid structure. By arranging the first pressing portion 2212, the unlocking of the first elastic lock 220 can be realized by pressing the first pressing portion 2212, thereby improving the convenience of the unlocking operation of the first elastic lock 220.

[0042] In some embodiments, the support member 210 further comprises a second mounting portion 212. The second mounting portion 212 is arranged on the side of the first mounting portion 211 that faces away from the first grid structure, and has a containing space between the first mounting portion 211 and the second mounting portion 212, which can contain at least part of the first rotating member 221. The second mounting portion 212 is provided with a second opening K2, and at least part of the first pressing portion 2212 is exposed from the second opening K2.

[0043] The first mounting portion 211 can limit the rotational movement of the first rotating member 221, thereby preventing the first elastic member 222 from causing the first rotating member 221 to rotate excessively. By arranging the second opening K2 on the second mounting portion 212, the convenience of the pressing operation of the first pressing portion 2212 is improved.

[0044] In some embodiments, the first clamping jaw 2211 has a second inclined surface F1 facing at least part of the lower surface of the first protrusion 110. In the present embodiment, in the state that the first clamping jaw 2211 extends into the first recess 120, the second inclined surface F1 of the first clamping jaw 2211 is parallel to the first inclined surface 111 of the first protrusion 110, so that the two are adapted to each other.

[0045] In the embodiment, the entire lower surface of each first protrusion 110 is a first inclined surface 111 that is inclined relative to a horizontal plane. In other embodiments, part of the lower surface of each first protrusion 110 is a first inclined surface 111 that is inclined relative to a horizontal plane. In the embodiment, the upper surface of each first protrusion 110 is parallel to a horizontal plane.

[0046] In some embodiments, the first inclined surface 111 is inclined relative to a horizontal plane by 15° to 75°, such that the friction between the first inclined surface 111 and the first pawl 2211 can achieve one-way locking of the first elastic lock 220 on the longitudinal Z position of the tray 300 in a state where the shelf is only subjected to gravity, and the first pawl 2211 can slide over the first inclined surface 111 when an external force lifts the tray 300 or the support 210 upward.

[0047] Figure 4 FIG. 6 is a sectional view of a second elastic lock of an embodiment of the shelf of the utility model, Figure 5 FIG. 7 is a sectional view of a second elastic lock of another embodiment of the shelf of the utility model, Figure 4 FIG. 8 is a partial enlarged view of region A in FIG. 7. The support 210 includes a crossbeam 213. In some embodiments, the shelf further includes a second guide rail 400 and a second elastic lock 500.

[0048] The second guide rail 400 is installed on the crossbeam 213. The second guide rail 400 includes a second grid structure arranged along the first transverse direction X, and the second grid structure includes a plurality of second protrusions 410 arranged along the first transverse direction X and a second groove 420 located between adjacent second protrusions 410. At least part of the same side surface of each second protrusion 410 is a third inclined surface 411 that is inclined relative to a first plane, and the first plane is a plane perpendicular to the first transverse direction X. The tray 300 is connected to the support assembly 200 through the second guide rail 400, and the tray 300 is movable along the second grid structure.

[0049] The second elastic lock 500 includes a second pawl 511 that can extend into the second groove 420. The second elastic lock 500 is arranged to extend the second pawl 511 into the second groove 420 under the action of its own elastic force, and the second pawl 511 can switch to extend into an adjacent second groove 420 through the third inclined surface 411 when the tray 300 is subjected to a one-way external force parallel to the first transverse direction X.

[0050] In the state that the tray 300 is only subjected to gravity, the second clamping jaw 511 of the second elastic lock 500 can be clamped in the second groove 420, so as to realize the one-way locking of the tray 300 in the first transverse direction X. In an example, the second elastic lock 500 realizes the locking of the tray 300 in the right movement in the first transverse direction X, that is, when the second elastic lock 500 is not unlocked, the one-way locking of the second elastic lock 500 makes the tray 300 unable to move to the right, and when the tray 300 is driven to move to the left by an external force, the second clamping jaw 511 can be switched to protrude into the adjacent left second groove 420 through the third inclined surface 411, and the second elastic lock 500 allows the tray 300 to move to the left. If it is prepared to move the tray 300 to the right, a specific external force needs to be applied to the second elastic lock 500, so that the second elastic lock 500 is unlocked. In the above example, the locking of the tray 300 in the right movement in the first transverse direction X is realized by the second elastic lock 500, and in other embodiments, the locking of the tray 300 in the left movement in the first transverse direction X can also be realized by the second elastic lock 500.

[0051] In some embodiments, the tray 300 comprises a third mounting portion 310. The second elastic lock 500 comprises a second rotating piece 510 and a second elastic piece 520. One end of the second rotating piece 510 is a second clamping jaw 511. The second rotating piece 510 is rotationally mounted on the third mounting portion 310. The second elastic piece 520 connects the second rotating piece 510 and the third mounting portion 310. In the state that the second rotating piece 510 is not subjected to an external force, the second elastic piece 520 makes the second rotating piece 510 turn to make the second clamping jaw 511 protrude towards the second groove 420. In this embodiment, the second rotating piece 510 and the second elastic piece 520 realize the one-way locking function of the second elastic lock 500 with a relatively simple structure, so as to ensure the reliability of the use of the second elastic lock 500.

[0052] In some embodiments, the second rotating piece 510 further comprises a second pressing portion 512, which is arranged on the opposite side of the second clamping jaw 511 with respect to the center of rotation of the second rotating piece 510. When the second pressing portion 512 is pressed by a second preset external force, the second clamping jaw 511 is separated from the second groove 420. When the second pressing portion 512 is pressed by the second preset external force, the second rotating piece 510 rotates, and the second clamping jaw 511 is separated from the second groove 420. At this time, the unlocking of the second elastic lock 500 can make the tray 300 adjust the position in the direction that is previously one-way locked along the second grid structure. By arranging the second pressing portion 512, the unlocking of the second elastic lock 500 can be realized by pressing the second pressing portion 512, so as to improve the convenience of the unlocking operation of the second elastic lock 500.

[0053] The utility model discloses an embodiment further provides a kind of ink-jet printing device, it includes ink-jet printing shell, ink-jet printing word car component and the storage rack of any preceding embodiment. Ink-jet printing word car component is installed in ink-jet printing shell. Storage rack is installed in ink-jet printing shell. Storage rack includes first guide rail 100, support component 200 and tray 300. Support component 200 includes support piece 210 and first elastic lock catch 220. Tray 300 is used to carry to be ink-jet printed object, and tray 300 is installed in support piece 210. First guide rail 100 includes the first grid structure of being arranged along longitudinal direction Z. First grid structure includes multiple first protrusions 110 arranged along longitudinal direction Z and the first groove 120 between adjacent first protrusions 110. At least part of the lower surface of each first protrusion 110 is first inclined surface 111 arranged obliquely to horizontal plane. First elastic lock catch 220 is connected with support piece 210. Support piece 210 is movable along first grid structure. First elastic lock catch 220 includes first pawl 2211 capable of extending into first groove 120. First elastic lock catch 220 is arranged to make first pawl 2211 extend into first groove 120 under the action of its elastic force, and first pawl 2211 can be switched to extend into adjacent upper first groove 120 through first inclined surface 111 when support piece 210 is subjected to upward external force.

[0054] According to the ink-jet printing device of the utility model embodiment, the storage rack includes first guide rail 100, support component 200 and tray 300. First guide rail 100 includes the first grid structure of being arranged along longitudinal direction Z, and the first grid structure includes multiple first protrusions 110 arranged along longitudinal direction Z and the first groove 120 between adjacent first protrusions 110, wherein at least part of the lower surface of each first protrusion 110 is first inclined surface 111 arranged obliquely to horizontal plane. Support component 200 includes support piece 210 and first elastic lock catch 220, and first elastic lock catch 220 includes first pawl 2211 capable of extending into first groove 120. First elastic lock catch 220 is arranged to make first pawl 2211 extend into first groove 120 under the action of its elastic force, so that in the state that the storage rack is only subjected to gravity, first pawl 2211 of first elastic lock catch 220 can be clamped in first groove 120, the locking of tray 300 in longitudinal direction Z is realized, accidental falling of tray 300 is avoided, and the stability of the longitudinal direction Z position of tray 300 is improved. When it is necessary to adjust the position of tray 300 upward, tray 300 or support piece 210 is lifted upward by external force, at this time, first pawl 2211 cooperates with first inclined surface 111, first pawl 2211 can be switched to extend into adjacent upper first groove 120 through first inclined surface 111, after the upward external force is removed, first pawl 2211 stays in the current first groove 120, the convenience of adjusting the position of tray 300 upward is improved, and one-way locking of first elastic lock catch 220 to the longitudinal direction Z position of tray 300 is realized.

[0055] The above merely describes preferred embodiments of the present application, and is not intended to limit the patent scope of the present application. Any equivalent structural transformation, or direct / indirect application in other related technical fields, made under the concept of the present application, using the content of the present application specification and drawings, is included in the patent protection scope of the present application.

Claims

1. A shelf for a code injection device, characterized in that, The shelf comprises: a first guide rail comprising a first grid structure arranged along a longitudinal direction, the first grid structure comprising a plurality of first protrusions arranged along the longitudinal direction and a first groove between adjacent first protrusions, at least part of a lower surface of each first protrusion being a first inclined surface obliquely arranged relative to a horizontal plane; a support assembly comprising a support and a first elastic lock, the first elastic lock being connected to the support, the support being movable along the first grid structure, the first elastic lock comprising a first clamping jaw capable of extending into the first groove, the first elastic lock being arranged to cause the first clamping jaw to extend into the first groove under the action of its own elastic force, and the first clamping jaw being capable of switching to extend into an adjacent upper first groove through the first inclined surface when the support is subjected to an upward external force; a tray for carrying objects to be coded, the tray being mounted on the support.

2. The stand of claim 1, wherein The support comprises a first mounting portion provided with a first opening, the first elastic lock being mounted on the first mounting portion and located on a side of the first mounting portion away from the first grid structure, and the first clamping jaw being capable of extending into the first groove through the first opening.

3. The stand of claim 2, wherein, The first elastic lock comprises a first rotating member and a first elastic member, one end of the first rotating member being the first clamping jaw, the first rotating member being rotatably mounted on the first mounting portion, and the first elastic member connecting the first rotating member and the first mounting portion, the first elastic member causing the first rotating member to turn so that the first clamping jaw extends toward the first groove in a state where the first rotating member is not subjected to an external force.

4. The stand of claim 3, wherein The first rotating member further comprises a first pressing portion, the first pressing portion being arranged on opposite sides of a rotation center of the first rotating member from the first clamping jaw, and the first pressing portion being capable of causing the first clamping jaw to move away from the first groove when the first pressing portion is pressed by a first predetermined external force.

5. The stand of claim 4, wherein The support further comprises a second mounting portion, the second mounting portion being located on the side of the first mounting portion away from the first grid structure and having a receiving space capable of accommodating at least part of the first rotating member between the first mounting portion and the second mounting portion, the second mounting portion being provided with a second opening, and at least part of the first pressing portion being exposed from the second opening.

6. The stand of claim 1, wherein At least part of a surface of the first clamping jaw facing the lower surface of the first protrusion is a second inclined surface.

7. The stand of claim 1, wherein The first inclined surface is obliquely arranged relative to the horizontal plane at an angle of 15° to 75°.

8. The stand of claim 1, wherein The support comprises a cross beam, and the shelf further comprises: a second guide rail mounted on the cross beam, the second guide rail comprising a second grid structure arranged along a first transverse direction, the second grid structure comprising a plurality of second protrusions arranged along the first transverse direction and a second groove between adjacent second protrusions, at least part of a same side surface of each second protrusion being a third inclined surface obliquely arranged relative to a first plane, the first plane being a plane perpendicular to the first transverse direction, the tray being connected to the support assembly through the second guide rail and being movable along the second grid structure; A second elastic lock catch comprising a second clamping jaw capable of extending into the second groove, the second elastic lock catch being arranged to extend the second clamping jaw into the second groove under the action of its own elastic force, and the second clamping jaw being capable of switching to extend into an adjacent second groove through the third inclined surface when the tray is subjected to a one-way external force parallel to the first transverse direction.

9. The stand of claim 8, wherein, The tray comprises a third mounting portion, the second elastic lock catch comprises a second rotating member and a second elastic member, one end of the second rotating member being the second clamping jaw, the second rotating member being rotatably mounted to the third mounting portion, and the second elastic member connecting the second rotating member and the third mounting portion, the second elastic member causing the second rotating member to turn so that the second clamping jaw extends towards the second groove in the state that the second rotating member is not subjected to an external force.

10. An inkjet printing apparatus, characterized by comprising: Comprise: a code spraying shell; a code spraying trolley assembly mounted in the code spraying shell; and a shelf as claimed in any one of claims 1 to 9 mounted in the code spraying shell. ​

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