Portable indicating rod for teaching

Abstract

The utility model discloses a portable indicating rod for teaching, which belongs to the technical field of teaching appliances and comprises a rod body, a handle is slidably connected to the outer wall of the rod body, a fixing device is mounted on the inner wall of the handle and comprises a fixing block and a clamping groove, one side of the fixing block is provided with a shifting groove, and the shifting groove is connected with the clamping groove. A connecting groove is formed in one side in the shifting groove, a supporting groove is formed in one side of the connecting groove, and a shifting plate is slidably connected to the inner wall of the shifting groove; according to the utility model, the shifting plate is pushed to one side, so that the shifting plate drives the connecting rod to be connected to one side, the connecting rod drives the connecting block to move, the connecting block drives the clamping block to move, the clamping block slides out of the clamping groove, the clamping groove loses the fixing effect on the clamping block, and the handle is taken out to be separated from the rod body; therefore, the rod body is prevented from being too long to influence the cleaning effect when the handle is cleaned, and the danger of stabbing caused by shaking of the rod body during cleaning is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of teaching aids technology, and in particular relates to a portable teaching pointer stick. Background Technology

[0002] A teaching pointer is a teaching tool mainly used by teachers to point out blackboard writing, pictures, or projected content in the classroom, helping students better understand and follow the teaching content. The pointer is usually a thin, long stick-shaped object with a ball at one end so that the teacher can flexibly point to different content when explaining.

[0003] However, in actual use, since the handles of traditional teaching pointers are mostly made of metal or wood, they will get stained due to sweaty palms after prolonged use. In addition, traditional teaching pointers are one-piece, making it difficult to clean the handle due to the long length of the stick, and there is a risk of puncture wounds. Summary of the Invention

[0004] The purpose of this invention is to provide a portable teaching pointer to solve the problem of inconvenient cleaning of the handle of traditional teaching pointers.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a portable teaching pointer, comprising a stick body, a handle slidably connected to the outer wall of the stick body, a fixing device installed on the inner wall of the handle, the fixing device comprising a fixing block and a locking groove, a toggle groove on one side of the fixing block, a connecting groove on one side of the toggle groove, a support groove on one side of the connecting groove, a toggle plate slidably connected to the inner wall of the toggle groove, a connecting rod connected to one side of the toggle plate, a connecting block connected to one end of the connecting rod, a locking block connected to one side of the connecting block, two sliding sleeves embedded in the connecting block, and a support rod slidably connected inside the sliding sleeves, the support rod being sleeved with a spring.

[0006] As a further description of the above technical solution:

[0007] The outer wall of the fixing block is connected to the inner wall of the handle, and the snap-fit ​​groove is opened on one side of the rod.

[0008] As a further description of the above technical solution:

[0009] The two ends of the spring are respectively connected to one side of the connecting block and one side of the inner wall of the support groove, and the two ends of the support rod are respectively connected to both sides of the inner wall of the support groove.

[0010] As a further description of the above technical solution:

[0011] The dial has anti-slip raised patterns on one side, and the anti-slip raised patterns are evenly distributed.

[0012] As a further description of the above technical solution:

[0013] Two positioning holes are provided on one side of the rod, and a positioning rod is inserted into the positioning hole. The other end of the positioning rod is connected to one side of the fixing block.

[0014] As a further description of the above technical solution:

[0015] The outer wall of the handle is provided with absorbent cotton, and the absorbent cotton is an antibacterial material.

[0016] As a further description of the above technical solution:

[0017] A nut is embedded at one end of the rod, and a screw is connected to the internal thread of the nut. A contact block is connected to one end of the screw.

[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0019] 1. In this utility model, by setting a fixing device, by pushing the lever to one side, the lever drives the connecting rod to connect to one side, thereby causing the connecting rod to move the connecting block, and the connecting block to move the locking block, causing the locking block to slide out of the locking groove, so that the locking groove loses its fixing effect on the locking block, and then the handle is taken out, so that the handle is separated from the rod body. This avoids the rod body being too long and affecting the cleaning effect when cleaning the handle, and also avoids the risk of puncture injury caused by the shaking of the rod body during cleaning.

[0020] 2. In this utility model, by setting absorbent cotton on the surface of the handle, the absorbent cotton absorbs the sweat flowing into the handle, avoiding excessive sweat accumulation on the surface of the handle during long-term use, thereby preventing excessive sweat accumulation from damaging the handle, and keeping the handle dry during use, keeping the handle fresh, and improving the user experience. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of a portable teaching pointer proposed in this utility model;

[0022] Figure 2 This is a schematic diagram of the fixing device structure for a portable teaching pointer stick proposed in this utility model;

[0023] Figure 3 This utility model proposes a portable teaching pointer. Figure 2 Enlarged structural diagram of section A;

[0024] Figure 4 This is a schematic diagram of one side of the structure of a portable teaching pointer proposed in this utility model.

[0025] Legend: 1. Rod body; 2. Contact block; 3. Absorbent cotton; 4. Screw; 5. Positioning hole; 6. Positioning rod; 7. Fixing device; 701. Snap-fit ​​groove; 702. Snap-fit ​​block; 703. Connecting block; 704. Support rod; 705. Spring; 706. Connecting rod; 707. Toggle plate; 708. Toggle groove; 709. Connecting groove; 710. Support groove; 711. Fixing block; 8. Handle. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1 - Figure 4 This utility model provides a technical solution: a portable teaching pointer, including a stick body 1, a handle 8 slidably connected to the outer wall of the stick body 1, a fixing device 7 installed on the inner wall of the handle 8, the fixing device 7 including a fixing block 711 and a snap-fit ​​groove 701, a toggle groove 708 is formed on one side of the fixing block 711, a connecting groove 709 is formed on one side of the toggle groove 708, a support groove 710 is formed on one side of the connecting groove 709, a toggle plate 707 is slidably connected to the inner wall of the toggle groove 708, a connecting rod 706 is connected to one side of the toggle plate 707, and one end of the connecting rod 706 is connected to... There is a connecting block 703, and a snap-fit ​​block 702 is connected to one side of the connecting block 703. Two sliding sleeves are embedded in the connecting block 703, and a support rod 704 is slidably connected in the sliding sleeves. A spring 705 is sleeved on the support rod 704. The outer wall of the fixing block 711 is connected to the inner wall of the handle 8, and the snap-fit ​​groove 701 is opened on one side of the rod body 1. The two ends of the spring 705 are respectively connected to one side of the connecting block 703 and one side of the inner wall of the support groove 710, and the two ends of the support rod 704 are respectively connected to both sides of the inner wall of the support groove 710. The lever 707 has anti-slip ridges on one side, and the anti-slip ridges are evenly distributed.

[0028] In a specific implementation, by setting a fixing device 7, pushing the lever 707 to one side causes the lever 707 to move the connecting block 703 via the connecting rod 706. This causes the connecting block 703 to slide the locking block 702 out of the locking groove 701. Then, the handle 8 is slid outward, separating the handle 8 from the rod body 1, thus avoiding the risk of injury from the rod body 1 shaking during cleaning. During installation, by moving the lever 707, the lever 707 moves the connecting rod 706, which in turn moves the connecting block 703. This causes the connecting block 703 to compress the spring 705, causing the spring 705 to generate... The spring force then causes the connecting block 703 to move the locking block 702. Finally, after the handle 8 is re-inserted into the side of the rod body 1, the lever 707 is released, so that the connecting block 703, through the spring 705, causes the locking block 702 to slide into the locking groove 701, and then the fixing block 711 fixes it, so that the fixing block 711 fixes the handle 8. By setting the anti-slip ridge on one side of the lever 707, slippage is prevented when the lever 707 is turned, thus avoiding affecting the operation. By setting the support rod 704 to support the spring 705, the spring 705 is prevented from bending when compressed, thus avoiding affecting the rebound.

[0029] Two positioning holes 5 are opened on one side of the rod body 1, and a positioning rod 6 is inserted into the positioning hole 5. The other end of the positioning rod 6 is connected to one side of the fixing block 711. The outer wall of the handle 8 is provided with absorbent cotton 3, and the absorbent cotton 3 is an antibacterial material. A nut is embedded in one end of the rod body 1, and a screw 4 is connected to the internal thread of the nut. One end of the screw 4 is connected to a contact block 2.

[0030] In a specific implementation, by setting a screw 4 on one side of the contact block 2, when the contact block 2 on one side of the rod body 1 is damaged, the contact block 2 can be rotated and moved outward by the screw 4, so that the contact block 2 can be removed and replaced. This avoids the contact block 2 from being damaged and affecting the use after long-term use. By setting the absorbent cotton 3 antibacterial material and highly absorbent cotton layer on the surface of the handle 8, it is beneficial to effectively reduce the odor of sweat and improve the user experience. By setting the positioning rod 6 to be inserted into the positioning hole 5, it can be positioned when fixing the handle 8, improving the installation efficiency, and can also support the handle 8 to prevent the handle 8 from rotating and affecting the use.

[0031] Working principle: In use, by moving the dial 707, the connecting rod 706 moves, which in turn moves the locking block 702 via the connecting block 703. This causes the locking block 702 to slide out of the locking groove 701, thus removing the locking groove 701's fixing effect on the locking block 702. Then, the handle 8 is slid to one side, allowing it to slide out of the rod body 1 for cleaning. This avoids the risk of injury during cleaning caused by the excessive length of traditional indicator rods. After cleaning, the dial 707 is moved again, causing the connecting rod 706 to move. The connecting rod 706 causes the connecting block 703 to compress the spring 705, causing the spring 705 to rebound. The handle 8 is then reinserted into one side of the rod body 1. Once in place, the dial 707 is released, allowing the connecting block 703 to reset due to the spring 705's rebound, thus causing the locking block 702 to insert into the locking groove 701 for re-fixation.

[0032] In this invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A portable teaching pointer, comprising a pointer body (1), characterized in that, The outer wall of the rod (1) is slidably connected to a handle (8), and the inner wall of the handle (8) is equipped with a fixing device (7). The fixing device (7) includes a fixing block (711) and a snap-fit ​​groove (701). A toggle groove (708) is provided on one side of the fixing block (711). A connecting groove (709) is provided on one side of the toggle groove (708). A support groove (710) is provided on one side of the connecting groove (709). A toggle plate (707) is slidably connected to the inner wall of the toggle groove (708). A connecting rod (706) is connected to one side of the toggle plate (707). A connecting block (703) is connected to one end of the connecting rod (706). A snap-fit ​​block (702) is connected to one side of the connecting block (703). Two sliding sleeves are embedded in the connecting block (703), and a support rod (704) is slidably connected inside the sliding sleeves. A spring (705) is provided on the outer sleeve of the support rod (704).

2. The portable teaching pointer according to claim 1, characterized in that, The outer wall of the fixing block (711) is connected to the inner wall of the handle (8), and the snap-fit ​​groove (701) is opened on one side of the rod (1).

3. A portable teaching pointer according to claim 1, characterized in that, The two ends of the spring (705) are respectively connected to one side of the connecting block (703) and one side of the inner wall of the support groove (710), and the two ends of the support rod (704) are respectively connected to both sides of the inner wall of the support groove (710).

4. A portable teaching pointer according to claim 1, characterized in that, The dial plate (707) has anti-slip raised patterns on one side, and the anti-slip raised patterns are evenly distributed.

5. A portable teaching pointer according to claim 1, characterized in that, Two positioning holes (5) are opened on one side of the rod (1), and a positioning rod (6) is inserted into the positioning hole (5). The other end of the positioning rod (6) is connected to one side of the fixing block (711).

6. A portable teaching pointer according to claim 1, characterized in that, The outer wall of the handle (8) is provided with absorbent cotton (3), and the absorbent cotton (3) is an antibacterial material.

7. A portable teaching pointer according to claim 1, characterized in that, The rod (1) has a nut embedded at one end, and a screw (4) is connected to the internal thread of the nut. A contact block (2) is connected to one end of the screw (4).

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