CN218413177U

CN218413177U - Arc-shaped plate connecting structure

Info

Publication number: CN218413177U
Application number: CN202122103523.7U
Authority: CN
Inventors: 张�杰; 王浩威; 李屹
Original assignee: Appotronics Corp Ltd
Current assignee: Shenzhen Appotronics Corp Ltd
Priority date: 2021-09-01
Filing date: 2021-09-01
Publication date: 2023-01-31
Anticipated expiration: 2031-09-01

Abstract

The embodiment of the application provides an arc-shaped plate connecting structure, and relates to the technical field of projection engineering equipment. The arc-shaped plate connecting structure is applied to projection equipment and comprises a bottom plate and an arc-shaped plate. The first side fixedly connected with complete machine curb plate subassembly of bottom plate, second side edge position fixedly connected with first joint spare, first joint spare includes along the grafting portion of first direction extension. The arc includes the arc body and is located the locking plate of this end of body of arc, and the locking plate is used for passing through retaining member locking with complete machine curb plate subassembly fixed, and the intrados of arc body is provided with the second joint spare with first joint spare matched with, and when the arc slided along the second direction opposite with first direction for the bottom plate, second joint spare can with grafting portion joint. Simple to operate, through the joint with the dual fixed of locking, can accomplish the erection joint of arc and bottom plate high-efficiently, stably, improve structural stability and assembly efficiency after the product installation.

Description

Arc-shaped plate connecting structure

Technical Field

The application belongs to the technical field of projection equipment, and more specifically relates to an arc-shaped plate connecting structure.

Background

In a projection device product, an arc-shaped plate is usually adopted as a connecting piece of a whole structure, so that a whole shell and a bottom plate can be connected on the premise that the product meets the requirement of an arc-shaped appearance. Generally, the flat plate portions at the two ends of the arc-shaped plate are connected with the whole structure by screws, and the arc-shaped portion in the middle of the arc-shaped plate is covered on the bottom plate.

Aiming at the projection equipment product with larger volume, the corresponding arc-shaped plate has longer length and lower rigidity. When in connection, if only the screws are adopted to connect the plane parts at the two ends of the arc-shaped plate with the whole structure, and the arc-shaped part at the middle position has no connection structure, the arc-shaped part at the middle position is easy to deform under stress and is pulled out, and the stability of the whole structure of the product is further influenced.

SUMMERY OF THE UTILITY MODEL

An object of the present application includes, for example, providing an arc plate connection structure to improve the above-described problems.

The embodiment of the application can be realized as follows:

an arc connecting structure is provided, which is applied to a projector apparatus. And include bottom plate and arc, the bottom plate includes along first side and the second side of thickness direction back to setting up, first side fixedly connected with complete machine curb plate subassembly, the first joint spare of second side edge position fixedly connected with, first joint spare includes the grafting portion of following the extension of first direction. The arc includes the arc body and is located the locking plate of this end of body of arc, and the locking plate is used for passing through retaining member locking with complete machine curb plate subassembly fixed, and the arc body is including the intrados that is close to bottom plate one side, and the intrados is provided with first joint spare matched with second joint spare, and when the arc slided along the second direction opposite with first direction for the bottom plate, second joint spare can with grafting portion joint.

The application provides an arc connection structure through connecting complete machine curb plate subassembly at bottom plate first side, sets up first joint spare at the border position of second side, sets up second joint spare on the intrados that the arc body of arc is close to the bottom plate, and second joint spare is used for realizing the joint with first joint spare cooperation. The locking plate at the end part of the arc-shaped body can be locked and fixed with the side plate component of the whole machine through the locking piece. During the installation, slide along the second direction for the bottom plate earlier with the arc, at the slip in-process, second joint spare contacts with first joint spare earlier, along with the continuation slip of arc and when the slip back that targets in place, second joint spare and first joint spare joint completely. Then the locking plate in the arc-shaped plate and the whole side plate assembly are locked and fixed by adopting the locking piece, and the clamping and locking dual fixation can be realized. Simple to operate improves the structural stability after the product installation to prevent the arc body atress deformation of arc.

Further, second joint spare includes the joint body, the first side of joint body and the intrados fixed connection of arc body, and makes to form the card between the intrados of joint body and arc body and establish the clearance, and the grafting portion of first joint spare is inserted and is located the card and establish the clearance.

Behind joint body and the arc body fixed connection in the second joint spare for form the card between the interior cambered surface of arc body and the joint body and establish the clearance, after arc and bottom plate installation, the grafting portion of first joint spare just in time can insert and locate the card and establish in the clearance. When the arc body warp under the exogenic action, when receiving outside pulling force, grafting portion can provide the resistance opposite with the pulling force direction to the restriction arc body is pulled out.

Furtherly, second joint spare is still including leading smooth portion, leads smooth portion fixed connection in the second side of joint body, leads smooth portion and extends for the direction slope of joint body orientation keeping away from the intrados of arc body.

The sliding guide part is fixedly connected with the clamping body and is obliquely arranged. The guide sliding part can provide a guide function when the arc-shaped plate is installed with the bottom plate. Namely, the arc plate slides along the second direction relative to the bottom plate, the guide sliding part is firstly contacted with the inserting part of the first clamping part, and the inserting part is gradually inserted into the clamping gap of the arc plate under the guide sliding effect of the inclined surface of the guide sliding part.

Furthermore, the cross section of the clamping body is of an L-shaped, V-shaped or U-shaped structure.

The cross section of the clamping body is designed into an L-shaped structure, a V-shaped structure or a U-shaped structure, so that the stability of the inner arc surface of the clamping body and the arc body is enhanced.

Furthermore, the second clamping piece is of a columnar structure, and a clamping groove is formed in the second clamping piece along the first direction, so that the inserting part of the first clamping piece is inserted into the clamping groove.

Through being the columnar structure with the design of second joint spare, and seted up the joint groove on second joint spare, when the arc slides along the second direction for the bottom plate, the grafting portion of first joint spare just in time can insert and locate this joint inslot, provides the trend that prevents the arc body and is pulled out to the outside under the exogenic action through grafting portion.

Furthermore, the first clamping piece further comprises a fixing part, the fixing part is fixedly connected with the inserting part and forms an L-shaped structure, and the fixing part is fixedly connected with the second side of the bottom plate.

The first clamping piece is designed into an L-shaped structure, and the fixing part is used for being fixedly connected with the second side of the bottom plate; the inserting part extends along the first direction and is used for being clamped with the second clamping piece of the arc-shaped plate. This first joint spare simple structure, simple to operate.

Furthermore, the quantity of first joint spare is a plurality of, and whole first joint spare sets up along the marginal extending direction of bottom plate second side interval in proper order. The quantity of second joint spare is the same with the quantity of first joint spare, and whole second joint spares set up along the length direction of arc body interval in proper order, and second joint spare and first joint spare one-to-one joint.

Through being a plurality of with first joint spare design, the quantity of second joint spare is the same with the quantity of first joint spare and position one-to-one to make have a plurality of joint points between arc body and the bottom plate, be difficult for taking place to warp under the exogenic action.

Further, the arc body sets up the guide along one side that width direction is close to the locking plate, the border of bottom plate seted up with guide matched with guiding hole, and when the arc slided along the second direction for the bottom plate, the guiding hole was worn to locate by the guide.

Through set up the guide on the arc body, correspondingly, set up the guiding hole at the bottom plate border, and the guide is corresponding with the guiding hole position to when making the arc slide for the bottom plate, the guide can be followed the guiding hole and passed, is favorable to leading when the arc slides for the bottom plate.

Further, the guide piece includes connecting portion and guide post, and connecting portion and one side fixed connection that the arc body is close to the locking plate, guide post fixed connection in the one side that connecting portion are close to the bottom plate. The quantity of guiding hole is a plurality of, and all guiding holes are seted up along the border extending direction of bottom plate interval in proper order, and the guide post is the same with the guiding hole quantity, and all guide posts set up and the guiding hole one-to-one along the length direction of connecting portion interval in proper order.

One side through being close to the locking plate at the arc body sets up connecting portion for the setting of guide post provides bearing structure, make things convenient for the guide post to connect in one side of connecting portion that is close to the bottom plate. Through the cooperation of guide post and guiding hole, be favorable to realizing better guide effect.

Further, the bottom plate includes upper cover, lower cover and strengthening rib, and upper cover and lower cover lock joint, the strengthening rib is connected in upper cover and lower cover simultaneously, and is located the border position of bottom plate, and first joint spare fixed connection deviates from one side of upper cover in the strengthening rib.

Through setting up the strengthening rib in upper cover and lower cover hookup location department, and make the strengthening rib simultaneously with upper cover, lower cover fixed connection, be favorable to improving the intensity of complete machine structure, the steadiness after reinforcing bottom plate is connected with the arc, and can fix first joint spare on the strengthening rib, fixed convenient, difficult influence leads to the fact the upper cover.

Drawings

To more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of an arc plate connection structure provided in an embodiment of the present application from a perspective;

fig. 2 is a schematic structural diagram of an arc plate in an arc plate connection structure provided in an embodiment of the present application;

fig. 3 is an enlarged partial structure view of a bottom plate in an arc plate connection structure provided in an embodiment of the present application;

fig. 4 is an enlarged view of a partial structure of an arc plate in the arc plate connection structure provided in the embodiment of the present application;

FIG. 5 is an exploded view of an arcuate plate attachment structure provided in accordance with an embodiment of the present application;

FIG. 6 is an enlarged view of a portion of the guide member of FIG. 2;

fig. 7 is a schematic structural diagram of a base plate in an arc plate connection structure provided in an embodiment of the present application.

Icon: 100-an arc plate connection structure; 102-a first direction; 105-a second direction; 110-a base plate; 1102 — a first side; 1104-a second side; 1105, an upper cover; 1107-lower cover; 1109-reinforcing ribs; 111-a first snap-in member; 1112-a fixation part; 1114-a plug-in part; 113-a pilot hole; 120-complete machine side plate assembly; 130-arc shaped plate; 132-an arcuate body; 1305-the intrados surface; 134-a second clip; 1342-a clip body; 1344-a slide guide; 135-clamping the gap; 136-a guide; 1362-linker; 1364-guide post; 137-locking plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

It should be noted that the features of the embodiments of the present application may be combined with each other without conflict.

In a projection device product, after the whole structure is connected with the bottom plate, the bottom plate is often fixedly connected with the whole shell through an arc-shaped plate. The arc-shaped plate is used as a special connecting piece, and the special arc-shaped appearance requirement of a projection device product can be met.

The arc-shaped plate comprises an arc-shaped cover body located in the middle and flat plate structures located at two ends of the arc-shaped cover body, when the arc-shaped plate is installed, the screw holes are formed in the flat plate structures, screws penetrate through the screw holes of the flat plate structures to be fixedly connected with the whole machine assembly, and meanwhile the arc-shaped cover body can be covered on the bottom plate.

The mounting mode aims at the projection equipment with a smaller whole structure, not only can meet the requirements, but also is convenient and simple to mount. However, for a projection device product with a larger volume, the arc plate corresponding to the bottom plate of the projection device product has a longer length and lower rigidity. If only carry out the fix with screw to the flat structure at arc plate both ends, then the arc apron of arc plate intermediate position then warp under the exogenic action easily, and then breaks away from with the bottom plate and is pulled out to influence the stability of product complete machine structure.

In order to improve the above problem, the middle position of the arc plate can be fixedly connected with the bottom plate through a screw, namely, the middle position of the arc plate is fixed at multiple points.

However, the above method is not easy to operate because the middle position of the arc-shaped plate is in an arc-shaped structure. The arc-shaped structure is provided with the screw, so that the overall appearance of the projection equipment product is influenced; meanwhile, the manufacturing difficulty of the product is increased, and the production cost is increased.

In view of the above problems, referring to fig. 1, an embodiment of the present application provides an arc plate connection structure 100, which is applied to a projector.

Specifically, the arc connection structure 100 may include a base plate 110 and an arc 130.

The base plate 110 includes a first side 1102 and a second side 1104 disposed opposite each other in a thickness direction. Wherein, first side 1102 fixedly connected with complete machine curb plate subassembly 120, complete machine curb plate subassembly 120 can include preceding curb plate subassembly and posterior lateral plate subassembly, and preceding curb plate subassembly and posterior lateral plate subassembly interval set up, and preceding curb plate subassembly and posterior lateral plate subassembly lie in the same one side of bottom plate 110. The second side 1104 is fixedly connected with a first clamping member 111 along an edge position, the first clamping member 111 is used for clamping with the arc-shaped plate 130, and the first clamping member 111 includes a plug-in part (not shown in the figure) extending along the first direction 102. It should be noted that the first direction 102 is a direction along the thickness of the bottom plate 110 from the first side 1102 to the second side 1104.

Referring to fig. 2, fig. 2 is a schematic structural view of the arc plate 130. The arcuate plate 130 may include an arcuate body 132 and a locking plate 137 at an end of the arcuate body 132. Wherein, the arc 130 can be integrated into one piece and be U type structure, and the arc body 132 is located the intermediate position of arc 130, and the cross section of arc body 132 is towards the crooked arc structure of bottom plate 110 one side, and the arc body 132 can include the intrados 1305 that is close to bottom plate 110 one side promptly. The inner arc surface of the arc body 132 is provided with a second clamping member 134, so that the arc body 132 and the bottom plate 110 can be clamped by the first clamping member 111 and the second clamping member 134 in a matching manner (as shown in fig. 1). The locking plate 137 is located at the end of the arc plate 130 and has a planar plate-like structure.

When installed, the arcuate plate 130 may be attached to the side of the base plate 110, with the arcuate plate 130 sliding relative to the base plate 110 in a second direction 105 opposite the first direction 102. During the sliding process, the second clamping member 134 disposed on the inner arc surface of the arc-shaped body 132 can be clamped with the insertion portion (not shown in fig. 1) of the first clamping member 111 disposed on the bottom plate 110. When the arc plate 130 slides relative to the bottom plate 110 until the first engaging member 111 and the second engaging member 134 are completely engaged, the degree of freedom of the arc plate 130 moving outward relative to the bottom plate 110 can be limited. Finally, the locking plate 137 and the whole machine side plate assembly 120 arranged on the first side 1102 of the bottom plate 110 can be locked and fixed through a locking piece.

The arc plate connecting structure 100 provided by the embodiment of the present application can adopt a clamping manner and a locking and fixing manner of the locking member for the fixed connection between the arc plate 130 and the bottom plate 110.

On one hand, the locking plate 137 of the arc-shaped plate 130 can be fixedly locked with the complete machine side plate assembly 120 through a locking piece; on the other hand, the first clamping piece 111 and the second clamping piece 134 which are clamped with each other are arranged between the bottom plate 110 and the arc-shaped body 132, so that the middle position of the arc-shaped plate 130 can be clamped with the bottom plate 110 at multiple points, and the purpose of enhancing the connection stability is achieved.

Compare in offering the screw hole at arc body 132 position and carrying out the mode that the screw was connected, the aforesaid sets up first joint spare 111 through at bottom plate 110 second side 1104, sets up second joint spare 134 at the intrados face 105 of arc body 132, the mode of first joint spare 111 and second joint spare 134 joint, easily processing, installation convenient operation connects back stable in structure, and can not influence the whole outward appearance effect after connecting.

Specifically, referring to fig. 3, an enlarged view of a portion of the bottom plate 110 is shown.

The first clip 111 may include a fixing portion 1112 and a plug portion 1114 that are fixedly connected. The fixing portion 1112 is used for being fixedly connected with the second side 1104 of the bottom plate 110, and the inserting portion 1114 is used for being clamped with the second clamping member 134 arranged on the inner arc surface of the arc-shaped body 132.

Alternatively, the fixing portion 1112 and the inserting portion 1114 may be integrally formed and have an L-shaped structure. The fixing portion 1112 may be formed with a plurality of screw holes, the first engaging member 111 and the bottom plate 110 are fixed by screws, and after the fixing, the inserting portion 1114 extends along the first direction 102. By designing the first clamping member 111 to be an L-shaped structure, the fixing portion 1112 is fixedly connected to the second side 1104 of the bottom plate 110, and the inserting portion 1114 extends along the first direction 102 and is clamped with the second clamping member 134 of the arc plate 130. The first clamping piece 111 is simple in structure and convenient to install.

Specifically, referring to fig. 2 and 4 together, fig. 4 is an enlarged view of a partial structure of the arc plate 130.

Second joint spare 134 fixes at the intrados 1305 of arc body 132, and second joint spare 134 can include joint body 1342, and the first side of joint body 1342 and the intrados 1305 of arc body 132 fixed connection. After the connection, a clamping gap 135 can be formed between the clamping body 1342 and the inner arc surface 1305 of the arc body 132. When the arc plate 130 slides along the second direction 105 relative to the base plate 110, the inserting portion 1114 of the first engaging member 111 can be inserted into the engaging gap 135. When the arc-shaped body 132 is pulled outward, the inserting portion 1114 can provide resistance to the arc-shaped plate 130 being pulled outward, so as to stably connect the arc-shaped body 132 located in the middle of the arc-shaped plate 130 with the bottom plate 110.

Optionally, the clip body 1342 may have a thin plate structure, so that the clip body 1342 can be stably connected to the arc body 132, and the strength after the fixation is enhanced. In one embodiment of the present application, the cross-sectional shape of the clip body 1342 can be an L-shaped, V-shaped or U-shaped structure. For example, when the cross section of the clamping body 1342 is U-shaped, the clamping body 1342 may be divided into three bending planes, and after the three bending planes are fixed to the inner arc 1305 of the arc-shaped body 132, the stability of the fixed connection between the clamping body 1342 and the inner arc 1305 of the arc-shaped body 132 is enhanced.

Alternatively, the connection may be fixed by welding, and other connection manners may also be used, which is not limited herein.

In order to make the inserting portion 1114 of the first clamping member 111 and the second clamping member 134 smoothly clamped into the clamping gap 135. Optionally, as shown in fig. 4, the second clip 134 may further include a sliding guide portion 1344.

The guiding portion 1344 is fixedly connected to a second side of the clamping body 1342, and the guiding portion 1344 can extend obliquely towards a direction away from the intrados 1305 of the arc body 132 relative to the clamping body 1342. The sliding guide portion 1344 provides a sliding guide function for the inserting portion 1114 of the first engaging member 111 before the inserting portion is inserted into the engaging gap 135, so that the inserting portion 1114 can gradually slide into the engaging gap 135 along an inclined direction of the sliding guide portion 1344, thereby achieving a guiding function.

For a bulky projection device product, the length of the arc plate 130 is relatively long. To improve the clamping effect, a plurality of clamping points may be disposed on the arc body 132 in the middle of the arc plate 130.

Alternatively, a plurality of first clamping members 111 may be disposed on the second side 1104 of the bottom plate 110, and all of the first clamping members 111 may be sequentially disposed at intervals along the extending direction of the edge of the second side 1104 of the bottom plate 110. Corresponding to the first clamping members 111, the number of the second clamping members 134 is the same as that of the first clamping members 111, and the second clamping members 134 are arranged at intervals along the length direction of the arc-shaped body 132. The positions of the second clamping members 134 and the first clamping members 111 after being arranged can be exactly in one-to-one correspondence, so that when the arc plate 130 slides along the second direction 105 relative to the bottom plate 110, the second clamping members 134 and the first clamping members 111 can be clamped in one-to-one correspondence.

It is to be understood that the structure of the second clamping member 134 is not limited to the above structure, and other structures are also possible. For example, in an embodiment of the present application, the second fastening member may be a columnar structure, a fastening groove (not shown) is formed in the second fastening member of the columnar structure along the first direction, and the opening size and the opening depth of the fastening groove should match with the insertion portion of the first fastening member. When making the arc slide along the second direction for the bottom plate, the grafting portion of first joint spare can just in time insert and locate the joint inslot, connects the back, provides through grafting portion and prevents the trend that the arc body is pulled out to the outside under the exogenic action. Not only can limit the degree of freedom that the arc moves to the outside relative to the bottom plate, but also can limit the degree of freedom that the arc moves along its length direction.

In order to realize better connection stabilizing effect, the second clamping piece with any structure can be clamped in multiple points. In other words, the quantity of the second joint spare of seting up the joint groove also can set up to a plurality ofly, and the even interval distribution of length direction of arc body can be followed to a plurality of second joint spares, and the even interval distribution of extending direction that bottom plate second side edge position can be followed to a plurality of first joint spares.

Referring to fig. 5, an exploded view of an arc plate connection structure 100 according to an embodiment of the present disclosure is shown.

In order to facilitate the clamping connection when the arc plate 130 is installed on the bottom plate 110, optionally, the arc plate connection structure 100 provided in the embodiment of the present application may further include a guide structure at a matching position of the bottom plate 110 and the arc plate 130. When the arc-shaped body 132 is just in contact with the bottom plate 110, the first clamping member 111 and the second clamping member 134 can be smoothly clamped through the guide structure.

Alternatively, the arc-shaped body 132 is provided with a guide 136 at a side close to the locking plate 137 in the width direction. With the guiding element 136 phase-match, the border of bottom plate 110 has seted up the guiding hole 113 with guiding element 136 matched with along the thickness direction, and when arc 130 for bottom plate 110 along second direction 105 slides, when arc body 132 just contacted with bottom plate 110, guiding element 136 just in time can wear to locate guiding hole 113, realizes along first direction 102 guide removal and restriction along the limiting displacement of arc body 132 length direction. The degree of freedom that arc 130 removed along arc body 132 length direction has been restricted promptly, avoids arc 130 to misplace about for bottom plate 110 along the length direction of arc body 132, and the difficult phenomenon of joint appears in first joint spare 111 and second joint spare 134.

Specifically, referring to fig. 2 and 6, the guide may include a connecting portion 1362 and a guide post 1364.

The connecting portion 1362 is fixedly connected to one side of the arc-shaped body 132 close to the locking plate 137, and the guiding post 1364 is fixedly connected to one side of the connecting portion 1362 close to the bottom plate 110. Connecting portion 1362 is a plate-like structure, and connecting portion 1362 may be integrally formed with arcuate body 132. The link 1362 may provide a load bearing structure for the arrangement of the guide posts 1364, facilitating the connection of the guide posts 1364 to the side of the link 1362 adjacent to the base plate 110. The guide post 1364 may have a cylindrical structure, the guide hole 113 is a groove penetrating the bottom plate 110 in the thickness direction, and the width of the guide hole 113 is slightly larger than the diameter of the guide post 1364. Through the matching of the guide post 1364 and the guide hole 113, the guide post 1364 can smoothly pass through the guide hole 113, and a better guiding effect can be provided for the clamping of the second clamping member 134 and the inserting part 1114 of the first clamping member 111.

Alternatively, the central axis of the guide post 1364 may be perpendicular to the connecting portion 1362, and the opening direction of the guide hole 113 may be a standard rectangular frame structure opened on the bottom plate 110. In an embodiment of the present application, the guide post 1364 may be obliquely disposed with respect to the connecting portion 1362, and the guide hole 113 is obliquely opened with respect to the bottom plate 110.

Alternatively, the number of the guide holes 113 formed in the bottom plate 110 is plural, and all the guide holes 113 may be sequentially formed at intervals along the extending direction of the edge of the bottom plate 110. The number of the guide posts 1364 is the same as the number of the guide holes 113 corresponding to the guide holes 113, and all the guide posts 1364 are sequentially arranged at intervals along the length direction of the connecting portion 1362, and the guide posts 1364 are correspondingly matched with the guide holes 113 one by one.

It is understood that the guiding structure between the arc plate 130 and the bottom plate 110 is not limited to the above structure, and may be designed in other structures, for example, the guiding member may be a protruding structure disposed on one side of the arc body 132 close to the locking plate 137 and facing the bottom plate 110, and the protruding structure may be inserted into the guiding hole 113 of the bottom plate 110. The present application does not limit the specific structure of the guide structure as long as the guide function can be achieved.

Referring to fig. 7, a schematic structural diagram of the bottom plate 110 is shown.

The base plate 110 may include an upper cover 1105, a lower cover 1107, and stiffeners 1109. The upper cover 1105 is connected to the lower cover 1107 in a snap-fit manner, and the reinforcing rib 1109 is connected to both the upper cover 1105 and the lower cover 1107. The strength of the whole structure is improved, the stability of the bottom plate 110 after being connected with the arc-shaped plate 130 is enhanced, the first clamping piece 111 can be fixed on the reinforcing rib 1109, the fixing is convenient, and the upper cover 1105 is not easily affected.

The upper cover 1105 may be a flat plate structure, and the lower cover 1107 is a frame structure with a cavity and a curved shape. During connection, the upper cover 1105 covers the opening of the lower cover 1107 for buckling connection.

The projection is performed along the thickness direction of the bottom plate 110, the projected area of the upper cover 1105 is larger than that of the lower cover 1107, and after the buckling, the edge of the upper cover 1105 has a protruding area protruding out of the lower cover 1107.

In order to allow the stiffener 1109 to be fixedly coupled to the upper and

lower covers

1105 and 1107 at the same time, the stiffener 1109 may be fixedly coupled to the protruding region.

Further, the reinforcement rib 1109 may include a first reinforcement portion and a second reinforcement portion, which may form an L-shaped structure. The first reinforcing part is riveted with the lower cover 1107, and the second reinforcing part is riveted with the upper cover 1105, so that the purposes of fixed connection and reinforcement of the strength of the bottom plate 110 are achieved.

In an embodiment of the present application, the reinforcing rib may further include a support portion (not shown), and the support portion is obliquely supported between the first reinforcing portion and the second reinforcing portion, so that the support stability is better.

Wherein, the stiffener 1109 can be disposed at the edge positions of both sides of the bottom plate 110, and under this structure, the first engaging member 111 can be fixedly connected to the stiffener 1109, that is, the first engaging member 111 is fixedly connected to one side of the stiffener 1109 departing from the upper cover 1105.

Referring to fig. 2, the locking plates 137 are located at two ends of the arc-shaped plate 130, and a plurality of screw holes may be formed in the locking plates 137, and when mounting, screws may be used to pass through the screw holes of the locking plates 137 and fix the complete machine side plate assembly 120.

In the arc-shaped plate connection structure 100 provided by the embodiment of the application, the first clamping piece 111 is arranged on the bottom plate 110, and the guide hole 113 is formed in the bottom plate 110 along the thickness direction; correspondingly, the second engaging member 134 is disposed at a corresponding position on the arc plate 130, and the guiding member is disposed on the inner arc surface 1305 of the arc body 132. When the arc plate 130 is installed to slide from bottom to top relative to the bottom plate 110, the guide part disposed on the arc plate 130 can be matched with the guide hole 113 formed on the bottom plate 110 for guiding, and meanwhile, the second clamping part 134 can be clamped and matched with the first clamping part 111. When slid into place, the locking plates 137 at the two ends of the arc-shaped plate 130 are finally locked and fixed with the whole side plate assembly 120 fixed on the first side 1102 of the bottom plate 110 by the locking members.

The arc-shaped plate 130 and the bottom plate 110 are assembled and connected through the guide structure, the clamping structure and the locking structure. This arc connection structure 100 can accomplish the erection joint of arc 130 and bottom plate 110 high-efficiently, steadily, has avoided carrying out mode such as conventional screw and has connected on the arc structure, has effectively improved the stability of assembly efficiency and structure. Especially for the projection apparatus product with a larger overall structure and a longer size of the arc-shaped plate 130, the arc-shaped plate connection structure 100 can effectively avoid the problems of manufacturing difficulty and higher cost caused by the manner of screw connection of the arc-shaped plate 130, and effectively improve the efficiency and stability of connection of the arc-shaped plate 130 and the overall bottom plate 110.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not necessarily depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.

Claims

1. The utility model provides an arc connection structure, is applied to in the projecting apparatus, its characterized in that includes:

the bottom plate comprises a first side and a second side which are oppositely arranged along the thickness direction, the first side is fixedly connected with a complete machine side plate assembly, the second side is fixedly connected with a first clamping piece along the edge position, and the first clamping piece comprises an inserting part extending along the first direction; and

the arc, the arc includes the arc body and is located the locking plate of this end of body of arc, the locking plate be used for with complete machine side plate subassembly passes through retaining member locking fixation, the arc body is including being close to the intrados of bottom plate one side, intrados be provided with first joint spare matched with second joint spare, and work as the arc for the bottom plate along with during the second direction that the first direction is opposite slides, second joint spare can with grafting portion joint.

2. The arc plate connecting structure according to claim 1, wherein the second clamping member includes a clamping body, the first side of the clamping body is fixedly connected with the inner arc surface of the arc body, a clamping gap is formed between the clamping body and the inner arc surface of the arc body, and the insertion part of the first clamping member is inserted into the clamping gap.

3. The arc plate connecting structure according to claim 2, wherein the second clamping member further includes a slide guide portion, the slide guide portion is fixedly connected to the second side of the clamping body, and the slide guide portion extends obliquely relative to the clamping body in a direction away from the intrados surface of the arc body.

4. The arcuate plate attachment structure of claim 2, wherein the cross-sectional shape of the latch body is an L-shaped, V-shaped, or U-shaped configuration.

5. The arc plate connecting structure according to claim 1, wherein the second engaging member is a cylindrical structure, and an engaging groove is formed in the second engaging member along the first direction, so that the insertion portion of the first engaging member is inserted into the engaging groove.

6. The arc plate connection structure of claim 1, wherein the first clip member further comprises a fixing portion, the fixing portion is fixedly connected to the insertion portion and forms an L-shaped structure, and the fixing portion is fixedly connected to the second side of the base plate.

7. The arc-shaped plate connecting structure according to claim 1, wherein the number of the first clamping members is multiple, and all the first clamping members are sequentially arranged at intervals along the extending direction of the edge of the second side of the bottom plate;

the quantity of second joint spare with the quantity of first joint spare is the same, and is whole second joint spare is followed the length direction of arc body sets up at intervals in proper order, just second joint spare with first joint spare one-to-one joint.

8. The arc plate connecting structure according to any one of claims 1 to 7, wherein a guide member is provided on one side of the arc body in the width direction, which is close to the locking plate, and a guide hole matched with the guide member is provided on the edge of the base plate, and when the arc plate slides in the second direction with respect to the base plate, the guide member is inserted into the guide hole.

9. The arc plate connecting structure according to claim 8, wherein the guide member includes a connecting portion fixedly connected to a side of the arc body adjacent to the locking plate, and a guide post fixedly connected to a side of the connecting portion adjacent to the base plate;

the number of the guide holes is multiple, all the guide holes are arranged at intervals in sequence along the extending direction of the edge of the bottom plate, the number of the guide columns is the same as that of the guide holes, and all the guide columns are sequentially arranged at intervals along the length direction of the connecting part and correspond to the guide holes one to one.

10. The arc plate connecting structure according to claim 1, wherein the base plate includes an upper cover, a lower cover, and reinforcing ribs, the upper cover and the lower cover are fastened together, the reinforcing ribs are connected to the upper cover and the lower cover at the same time and located at the edge of the base plate, and the first engaging member is fixedly connected to a side of the reinforcing ribs away from the upper cover.