Projector support

Abstract

The utility model relates to the technical field of projection equipment, and aims to provide a projector support. The projector support is good in supporting stability and not prone to shaking during moving, the lifting rod is not prone to deformation, and the service life is long. The projector support comprises a base, a lifting assembly and a connecting assembly. The lifting assembly comprises a driving mechanism and at least two lifting rods, the driving mechanism is arranged in the base, the driving end of the driving mechanism is connected with one end of each lifting rod, and the other end of each lifting rod extends out of the top surface of the base; one end of the connecting assembly is connected with the other end of the lifting rod, and the other end of the connecting assembly is provided with a projector. The projector support solves the problems that in the prior art, a projector support adopts a single rod to support a projector, stability is poor, shaking is prone to occurring, and therefore a lifting rod is prone to deformation and damage.

Description

Technical Field

[0001] The utility model relates to the technical field of projection equipment, in particular to a projector bracket. Background Art

[0002] Projectors are currently widely used in homes, offices, schools and entertainment venues to project various video, audio and other files to the audience. Generally, when using a projector in the above scenarios, the projector is placed on a table or a chair, and the projector cannot be adjusted in angle and height or moved at will.

[0003] In order to improve the convenience of using a projector, the projector is placed on a bracket, and the height, angle and position of the projector are changed through the bracket. Most existing projector brackets are directly connected to the projector through a lifting rod, and then the lifting rod is driven up and down by a structure such as a gear rack to change the height position of the projector. However, this single-rod support structure has poor stability and weak anti-interference ability, especially when moving a heavy projector, it is easy to shake, and the lifting rod is prone to deformation and damage in the long run. Utility Model Content

[0004] Therefore, the technical problem to be solved by the utility model is to overcome the defects in the prior art that the projector bracket uses a single rod to support the projector, which has poor stability and is easy to shake, and thus the lifting rod is easily deformed and damaged, thereby providing a projector bracket with good supporting stability, not easy to shake when moving, not easy to deform the lifting rod and long service life.

[0005] In order to solve the above problems, the utility model provides a projector bracket, comprising:

[0006] Base;

[0007] A lifting assembly, the lifting assembly comprising: a driving mechanism and at least two lifting rods, the driving mechanism is arranged in the base, and the driving end of the driving mechanism is connected to one end of the lifting rod, and the other end of the lifting rod extends out of the top surface of the base;

[0008] A connecting component, one end of which is connected to the other end of the lifting rod, and a projector is arranged on the other end of the connecting component.

[0009] Optionally, the driving mechanism includes: a driving member, a transmission member and a mounting plate, the driving end of the driving member is connected to the power input end of the transmission member, the power output end of the transmission member is connected to the mounting plate, and one end of the lifting rod is connected to the mounting plate.

[0010] Optionally, the transmission member includes: an internal threaded ring and a lead screw, the internal threaded ring is arranged on the mounting plate, the internal threaded ring is connected to the lead screw, and the axial direction of the lead screw is parallel to the axial direction of the lifting rod, and the driving end of the driving member is connected to the lead screw.

[0011] Optionally, a limiting hole is provided on the mounting plate, a limiting rod is arranged in the limiting hole, and the axial direction of the limiting rod is parallel to the axial direction of the lead screw.

[0012] Optionally, the lead screw is a trapezoidal lead screw.

[0013] Optionally, the lifting assembly further includes a frame, the frame is disposed in the base, the driving mechanism is disposed on the frame, a sleeve is further disposed between the top surface of the frame and the top surface of the base, and the sleeve is sleeved on the lifting rod.

[0014] Optionally, the connecting assembly includes: a supporting member and a connecting member, one end of the connecting member is connected to the lifting rod, and the other end of the connecting member is connected to one end of the supporting member, and the projector is arranged at the other end of the supporting member.

[0015] Optionally, the support member is L-shaped.

[0016] Optionally, the bottom end of the connecting member has a cylindrical connecting portion, and the connecting portion is sleeved on one end of the lifting rod extending out of the base.

[0017] Optionally, the projector bracket further includes a moving wheel assembly, and the moving wheel assembly includes four moving wheels arranged at four corners of the bottom surface of the base.

[0018] The utility model has the following advantages:

[0019] 1. The projector bracket provided by the utility model includes: a base, a lifting assembly and a connecting assembly. The lifting assembly includes: a driving mechanism and at least two lifting rods, the driving mechanism is arranged in the base, and the driving end of the driving mechanism is connected to one end of the lifting rod, and the other end of the lifting rod extends out of the top surface of the base; one end of the connecting assembly is connected to the other end of the lifting rod, and the other end of the connecting assembly is provided with a projector. By arranging more than two lifting rods to evenly bear the force, the supporting stability of the bracket can be improved, and it is not easy to shake when moving the projector, and the lifting rod will not be deformed due to excessive radial force.

[0020] 2. The drive structure of the projector bracket provided by the utility model includes: a driving member, a transmission member and a mounting plate. The transmission member includes an internal thread ring and a lead screw. The internal thread ring is arranged on the mounting plate and connected to the lead screw. The driving member can drive the lead screw to rotate, and then drive the internal thread ring to move up and down along the lead screw. One end of the lifting rod is connected to the mounting plate. When the internal thread ring moves up and down along the lead screw, it can also move up and down with the lifting rod, thereby adjusting the height position of the projector. This lifting assembly has a simple and compact structure and strong practicality.

[0021] 3. The projector bracket provided by the utility model has a limit hole on the mounting plate, a limit rod is arranged in the limit hole, and the axial direction of the limit rod is parallel to the axial direction of the lead screw. The limit rod is arranged to limit the running direction of the mounting plate, so as to ensure the lifting and lowering movement along the axial direction of the limit rod and prevent deviation.

[0022] 4. In the projector bracket provided by the utility model, the lead screw is preferably a trapezoidal lead screw, which has a self-locking function and can self-lock to fix the position of the projector after adjusting the height.

[0023] 5. The projector bracket provided by the utility model, the lifting assembly also includes a frame, the frame is arranged in the base, the driving mechanism is arranged on the frame, a shaft sleeve is arranged between the top surface of the frame and the top surface of the base, and the shaft sleeve is sleeved on the lifting rod. By setting the shaft sleeve, the position of the lifting rod can be limited, and the shaking of the lifting rod in the horizontal direction can be limited.

[0024] 6. The projector bracket provided by the utility model has a cylindrical connecting part at the bottom end of the connecting piece, which is sleeved on one end of the lifting rod extending out of the base. The cylindrical connecting part matching the shape of the lifting rod is connected to the lifting rod, which can improve the connection strength and the stability and safety of the bracket.

[0025] 7. The projector stand provided by the utility model also includes a moving wheel assembly, which includes four moving wheels arranged at the four corners of the bottom surface of the base. By arranging the moving wheels, the stand can be moved freely, the display angle and position of the projector can be changed, and the projection effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 It is a schematic diagram of the projector bracket of the utility model;

[0028] Figure 2 It is a cross-sectional view of the projector bracket of the utility model;

[0029] Figure 3 It is a schematic diagram of the lifting assembly in the projector bracket of the utility model.

[0030] Description of reference numerals:

[0031] 1. Base;

[0032] 2011, driving part, 2012, lead screw, 2013, mounting plate, 202, lifting rod, 203, limit rod, 204, frame, 205, bushing

[0033] 301, support member, 302, connecting member;

[0034] 4. Projector;

[0035] 501. Moving wheel. DETAILED DESCRIPTION

[0036] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0037] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0038] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0040] like Figures 1 to 3 The figure shows a preferred embodiment of the projector bracket of the utility model. The projector bracket can be mounted with the projector, and the display height and angle of the projector can be changed when in use, so the display effect is good and the application range is wide. Moreover, the support stability of the projector bracket is good, and the lifting rod will not shake much even when the projector is moved.

[0041] The above-mentioned projector bracket includes: a base 1, a lifting assembly and a connecting assembly. The base 1 can be directly placed on the ground as a bearing. The lifting assembly includes: a driving mechanism and at least two lifting rods 202. The driving mechanism is arranged in the base 1, and the driving end of the driving mechanism is connected to one end of the lifting rod 202. The driving mechanism is used to drive the lifting rod 202 to rise and fall. The other end of the lifting rod 202 extends out of the top surface of the base 1, one end of the connecting assembly is connected to the other end of the lifting rod 202, and the other end of the connecting assembly is provided with a projector 4. When the driving mechanism drives the lifting rod 202 to rise and fall, it will synchronously drive the projector 4 to rise and fall, thereby changing the height position of the projector 4. Since at least two lifting rods 202 are provided, multi-point support for the projector 4 is achieved. When subjected to horizontal impact loads, multiple lifting rods 202 can share the load together, thereby reducing the shaking amplitude of the lifting rod 202. The bracket has good support stability, and the lifting rod 202 will not shake significantly, so it is not easy to deform and damage, and it is more durable.

[0042] In this embodiment, the number of lifting rods 202 is two, and they are arranged at intervals along the width direction of the base 1. Of course, in other embodiments, they can also be arranged along the length direction or other directions of the base 1. The number of lifting rods 202 can also be three, four, six, etc. For example, if three lifting rods 202 are provided, they can be arranged in a triangle, and if four lifting rods 202 are provided, they can be arranged symmetrically in a cross shape.

[0043] Furthermore, the base 1 includes: a top plate, a bottom plate and a side plate, the upper end of the side plate is connected to the top plate, the lower end is connected to the bottom plate, and the side plate surrounds the bottom plate. A box-shaped enclosed space is enclosed by the top plate, the bottom plate and the side plate. A hole is provided on the top plate for the lifting rod 202 to pass through, and the diameter of the hole is slightly larger than the diameter of the lifting rod 202, so that it can play a certain role in limiting the radial direction of the lifting rod 202 and can also reduce the shaking of the lifting rod 202.

[0044] The bottom surface of the base 1, i.e., the bottom surface of the bottom plate, is provided with a moving wheel assembly, which includes four moving wheels 501, which are respectively provided at the four corners of the bottom surface of the bottom plate. The moving wheels 501 can be universal wheels with a self-locking mechanism. By providing the moving wheel assembly, the maneuverability of the bracket is improved, and the bracket is conveniently moved to change the position of the projector 4.

[0045] Furthermore, the lifting assembly also includes a frame 204, which is arranged in the base 1, the driving mechanism is arranged on the frame 204, and a sleeve 205 is arranged between the top surface of the frame 204 and the top surface of the base 1, and the sleeve 205 is sleeved on the lifting rod 202. Specifically, the frame 204 is approximately in the shape of a square, that is, the front side and the rear side of the frame 204 are connected. The frame 204 is fixedly connected to the bottom plate of the base 1, and the driving mechanism is arranged on the frame 204. One end of the lifting rod 202 passes through the top surface of the frame 204 and then extends from the top plate of the base 1 to the outside of the base 1. There is a certain distance between the top surface of the frame 204 and the top plate, where a sleeve 205 is arranged, which is fixedly connected to the frame 204 and sleeved on the lifting rod 202, that is, each lifting rod 202 is sleeved with a sleeve 205. The sleeve 205 can also play a role in limiting the radial displacement of the lifting rod 202 and reducing the shaking of the lifting rod 202. At the same time, the shaft sleeve 205 can also improve the connection strength of the lifting rod 202 and reduce the deflection of the end of the lifting rod 202.

[0046] The driving mechanism includes: a driving member 2011, a transmission member and a mounting plate 2013, the driving end of the driving member 2011 is connected to the power input end of the transmission member, the power output end of the transmission member is connected to the mounting plate 2013, and one end of the lifting rod 202 is connected to the mounting plate 2013.

[0047] Further, the transmission member includes: an internal thread ring and a lead screw 2012, the internal thread ring is arranged on the mounting plate 2013, the internal thread ring is connected to the lead screw 2012, and the axial direction of the lead screw 2012 is parallel to the axial direction of the lifting rod 202, and the driving end of the driving member 2011 is connected to the lead screw 2012 to drive the lead screw 2012 to rotate. In this embodiment, the driving member 2011 is preferably a motor, and the lead screw 2012 is preferably a trapezoidal lead screw with a self-locking function, so that the position can be fixed after the projector 4 is adjusted. The two ends of the lead screw 2012 are connected to the frame 204, the motor drives the lead screw 2012 to rotate, and the rotation of the lead screw 2012 drives the internal thread ring to rise and fall along the axial direction of the lead screw 2012, and then the mounting plate 2013 and the lifting rod 202 will also rise and fall along the axial direction of the lead screw 2012, so that the height of the projector 4 can be changed.

[0048] The connection between the bottom end of the lead screw 2012 and the frame 204 can be hinged, so that the parallelism between the lead screw 2012 and the lifting rod 202 can be adjusted and installation is more convenient.

[0049] In other embodiments, the transmission member may also be in other forms such as a gear rack, and the driving member 2011 may also be a motor, etc. For example, the motor drives the gear to rotate, thereby driving the rack meshing with the gear to move up and down, and the rack is connected to the mounting plate 2013 to achieve synchronous lifting.

[0050] In addition, a limiting hole is provided on the mounting plate 2013, and a limiting rod 203 is provided in the limiting hole. Both ends of the limiting rod 203 are also connected to the frame 204, and the axial direction of the limiting rod 203 is parallel to the axial direction of the lead screw 2012. By providing the limiting rod 203, the movement direction of the lifting rod 202 can be limited, and the lifting rod 202 can be guided to rise and fall along the axial direction of the lead screw 2012.

[0051] The connection assembly includes: a support member 301 and a connection member 302 . One end of the connection member 302 is connected to the lifting rod 202 , and the other end is connected to one end of the support member 301 . The other end of the support member 301 is provided with a projector 4 .

[0052] Specifically, the support member 301 is L-shaped, that is, the support member 301 is composed of a first support rod and a second support rod connected to each other perpendicularly. The end of the first support rod is provided with a projector 4, and the projector 4 can be hinged to the first support rod, so that the projection angle of the projector 4 can be adjusted. In this embodiment, the first support rod is connected by two sections. The inner section and the outer section are provided with connection holes, and then connected by bolts, and the inner section can be provided with multiple connection holes, so that the extension length of the inner section can be changed to change the position of the projector 4. The second support rod is fixedly connected to the connecting member 302, and the connection position is located at the center of the connecting member 302.

[0053] The bottom end of the connecting member 302 has a cylindrical connecting portion, which is sleeved on one end of the lifting rod 202 extending out of the base 1, and the number of the connecting portions is equal to the number of the lifting rods 202. The shape of the connecting portion matches the shape of the lifting rod 202, which can increase the connection strength and make the bracket more solid and stable.

[0054] The following is a description of the use of the projector bracket provided in this embodiment:

[0055] First, the projector bracket is pushed to a specified position, and then locked by the self-locking mechanism on the moving wheel 501 to prevent the bracket from moving during use. Then the driving member 2011 (i.e., the motor) is started, and then the lead screw 2012 will drive the internal thread ring to rise and fall on the lead screw 2012, and the direction of movement is controlled by the motor output steering. When the internal thread ring rises and falls, it will drive the mounting plate 2013 to rise and fall, and the lifting rod 202 arranged on the mounting plate 2013 will also rise and fall synchronously, and finally the height of the projector 4 can be changed. After the adjustment is completed, the driving member 2011 (i.e., the motor) is turned off, and under the self-locking effect of the trapezoidal lead screw 2012, it can be ensured that the height position of the projector 4 will not change during use.

[0056] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the present invention.

Claims

1. A projector bracket, It is characterized in that include: Base (1); A lifting assembly, the lifting assembly comprising: a driving mechanism and at least two lifting rods (202), the driving mechanism being arranged in the base (1), and the driving end of the driving mechanism being connected to one end of the lifting rod (202), and the other end of the lifting rod (202) extending out of the top surface of the base (1); A connecting component, one end of which is connected to the other end of the lifting rod (202), and a projector (4) is provided at the other end of the connecting component.

2. The projector bracket according to claim 1, It is characterized in that The driving mechanism comprises: a driving member (2011), a transmission member and a mounting plate (2013); the driving end of the driving member (2011) is connected to the power input end of the transmission member, the power output end of the transmission member is connected to the mounting plate (2013), and one end of the lifting rod (202) is connected to the mounting plate (2013).

3. The projector bracket according to claim 2, It is characterized in that The transmission member comprises: an internal thread ring and a lead screw (2012); the internal thread ring is arranged on the mounting plate (2013); the internal thread ring is connected to the lead screw (2012); the axial direction of the lead screw (2012) is parallel to the axial direction of the lifting rod (202); and the driving end of the driving member (2011) is connected to the lead screw (2012).

4. The projector bracket according to claim 3, It is characterized in that A limiting hole is provided on the mounting plate (213), a limiting rod (203) is arranged in the limiting hole, and the axial direction of the limiting rod (203) is parallel to the axial direction of the lead screw (2012).

5. The projector bracket according to claim 3, It is characterized in that The lead screw (2012) is a trapezoidal lead screw.

6. The projector bracket according to claim 1, It is characterized in that The lifting assembly further comprises a frame (204), wherein the frame (204) is arranged inside the base (1), the driving mechanism is arranged on the frame (204), and a shaft sleeve (205) is further arranged between the top surface of the frame (204) and the top surface of the base (1), and the shaft sleeve (205) is sleeved on the lifting rod (202).

7. The projector bracket according to claim 1, It is characterized in that The connection assembly comprises: a support member (301) and a connection member (302); one end of the connection member (302) is connected to the lifting rod (202), and the other end is connected to one end of the support member (301); the other end of the support member (301) is provided with the projector (4).

8. The projector bracket according to claim 7, It is characterized in that The support member (301) is L-shaped.

9. The projector bracket according to claim 7, It is characterized in that The bottom end of the connecting member (302) has a cylindrical connecting portion, and the connecting portion is sleeved on one end of the lifting rod (202) extending out of the base (1).

10. The projector bracket according to any one of claims 1 to 9, It is characterized in that It also comprises a moving wheel assembly, which comprises four moving wheels (501) arranged at four corners of the bottom surface of the base (1).

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