Height adjusting mechanism and prompter assembly

Abstract

The utility model discloses a height adjusting mechanism and a teleprompter assembly. The height adjusting mechanism comprises a connecting seat, a fixing seat and an adjusting assembly. The connecting base comprises a connecting part and a sliding block, the fixing base is provided with a sliding groove, and the sliding block can slide in the sliding groove in the vertical direction so as to adjust the height of the shooting device arranged on the connecting part. The adjusting assembly comprises a locking block, an elastic part and a knob, the locking block is provided with a second clamping structure, the sliding block is provided with a first clamping structure, and the second clamping structure is clamped with the first clamping structure. One end of the elastic part is connected with the locking block, the other end of the elastic part is connected with the fixed seat, and the elastic part can generate elastic force for pushing the locking block away from the sliding block. The knob transversely penetrates through the fixed seat and the locking block and is in threaded connection with the fixed seat, and the knob can positively and negatively rotate relative to the fixed seat so as to increase or relieve the pressure between the locking block and the sliding block. The teleprompter assembly with the height adjusting mechanism can be suitable for different shooting devices and provide high comfort for users.

Description

Technical Field

[0001] The utility model relates to the field of imaging technology, in particular to a height adjustment mechanism and a teleprompter component. Background Art

[0002] The teleprompter assembly includes a teleprompter and a mounting platform on the back of the teleprompter. The mounting platform is used to mount a shooting device, which can be a mobile phone, a SLR camera, a video camera, etc. The shooting device can shoot the user through the teleprompter. As there are more and more shooting devices, and the specifications and sizes vary, it is difficult to match the height of the shooting device with the teleprompter when switching between different shooting devices. Utility Model Content

[0003] The main purpose of the utility model is to provide a height adjustment mechanism and a teleprompter assembly, aiming to solve the technical problem that the height of a shooting device is difficult to match with the teleprompter.

[0004] To achieve the above object, the utility model proposes a height adjustment mechanism, which is characterized in that it is used for a teleprompter assembly, the height adjustment mechanism is used to support a shooting device, and the height adjustment mechanism includes:

[0005] A connecting seat, comprising a connecting portion and a slider, wherein the connecting portion is suitable for connecting the photographing device, the slider is connected below the connecting portion, and a first clamping structure is provided on one side of the slider;

[0006] A fixed seat, provided with a slide groove, wherein the slide groove is provided with a first opening on the top and a second opening on the side, and the sliding block is inserted into the slide groove through the first opening and can slide vertically in the slide groove;

[0007] An adjustment component, comprising a locking block, an elastic portion and a knob, wherein the locking block is provided with a second clamping structure, the locking block is inserted into the second opening and the second clamping structure is clamped with the first clamping structure, the elastic portion is respectively connected to the locking block and the fixing seat to generate an elastic force to push the locking block away from the slider, and the knob is transversely inserted into the fixing seat and the locking block and is threadedly connected to the fixing seat;

[0008] The knob can be rotated forward and reversely relative to the fixing seat to increase or release the pressure between the locking block and the sliding block, and the second clamping structure can be clamped at a plurality of clamping positions of the first clamping structure distributed vertically.

[0009] In some embodiments, the first engaging structure includes a plurality of first engaging teeth extending laterally, each of the first engaging teeth being arranged vertically;

[0010] The second locking structure includes a plurality of second locking teeth extending laterally, and each of the second locking teeth is arranged vertically.

[0011] In some embodiments, the first latching teeth and the second latching teeth have the same shape and size, and each of the first latching teeth is arranged in a vertical row, and each of the second latching teeth is arranged in a vertical row.

[0012] In some embodiments, the adjustment assembly further includes a limiter, the limiter is connected to the end of the knob passing through the fixing seat, and the limiter is used to limit the knob from being separated from the fixing seat.

[0013] In some embodiments, the limit member is threadedly connected to the knob, and the limit member is configured to be able to rotate relative to the knob to move toward or away from the locking block, so that the knob abuts against the fixed seat when the locking block is engaged with the slider or abuts against the fixed seat when the locking block is separated from the slider.

[0014] In some embodiments, the slider is provided with a through hole, the knob passes through the through hole, and when the slider slides vertically in the slide groove, the through hole moves vertically relative to the knob.

[0015] In some embodiments, the fixing seat includes a base and a fixing portion, the lower end of the fixing portion is connected to the base, the fixing portion is provided with the sliding groove, and the second opening is provided through the fixing portion.

[0016] In some embodiments, the height adjustment mechanism also includes a cover body connected to the fixed seat, the cover body covers the side of the locking block facing away from the fixed seat, the knob passes through the cover body and abuts against the side of the cover body facing away from the locking block, and the locking block can move in the cover body in a direction close to or away from the slider.

[0017] In some embodiments, the elastic portion includes a first spring and a second spring, the first spring and the second spring are distributed on two lateral sides of the second clamping structure, and the cover body covers the first spring and the second spring.

[0018] The second aspect of the utility model also provides a teleprompter assembly, characterized in that it includes:

[0019] The height adjustment mechanism described in any one of the above embodiments;

[0020] a track, the height adjustment mechanism being slidably connected to the track; and

[0021] The teleprompter body is slidably connected to the track.

[0022] Compared with the prior art, the beneficial effects of the utility model are:

[0023] In the technical solution of the utility model, the height adjustment mechanism for the teleprompter assembly can support the shooting equipment, and the height adjustment mechanism includes a connecting seat, a fixed seat and an adjustment assembly. Among them, the connecting seat includes a connecting part and a slider, and the fixed seat is provided with a slide groove, and the slide groove is provided with a first opening above and a second opening on the side. The slider can be inserted into the slide groove from the first opening and can slide vertically in the slide groove, so that the height of the shooting equipment set on the connecting part can be adjusted. The adjustment assembly includes a locking block, an elastic part and a knob, the locking block is provided with a second clamping structure, the slider is provided with a first clamping structure, the locking block is inserted into the second opening and the second clamping structure is clamped with the first clamping structure, so as to fix the slider. One end of the elastic part is connected to the locking block and the other end is connected to the fixed seat. The elastic part can generate an elastic force to push the locking block away from the slider, so that the second clamping structure is separated from the first clamping structure, so that the slider can move in the slide groove. The knob is transversely arranged in the fixing seat and the locking block, and the knob is threadedly connected to the fixing seat. The knob can be rotated forward relative to the fixing seat to increase the pressure between the locking block and the slider, so that the second clamping structure and the first clamping structure can be tightly clamped, thereby improving the stability of the height adjustment mechanism. The knob can also be rotated in the opposite direction relative to the fixing seat to release the pressure between the locking block and the slider, so that the slider can move vertically in the slide groove, and the second clamping structure can be clamped at multiple clamping positions distributed vertically on the first clamping structure, thereby realizing the height adjustment of the shooting device set at the connection part. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0025] Figure 1 This is a structural schematic diagram of a teleprompter assembly in one embodiment of the utility model;

[0026] Figure 2 This is a three-dimensional structural schematic diagram of a height adjustment mechanism in one embodiment of the utility model;

[0027] Figure 3 This is a schematic diagram of the structure explosion of the height adjustment mechanism in one embodiment of the utility model;

[0028] Figure 4 It is a structural schematic diagram of a height adjustment mechanism from a first viewing angle in one embodiment of the utility model;

[0029] Figure 5 In one embodiment of the utility model, the height adjustment mechanism is along Figure 4 A cross-sectional view cut along the AA direction; wherein the elastic portion is in a compressed state, and the second clamping structure is clamped with the first clamping structure;

[0030] Figure 6 It is a structural schematic diagram of a height adjustment mechanism from a second viewing angle in one embodiment of the utility model;

[0031] Figure 7 In one embodiment of the utility model, the height adjustment mechanism is along Figure 6 Sectional view taken along the BB direction.

[0032] Description of Figure Numbers:

[0033] 10-teleprompter assembly;

[0034] 100-height adjustment mechanism;

[0035] 110-connection seat;

[0036] 111-connecting part;

[0037] 112-slider; 1121-first clamping structure; 1122-first clamping tooth; 1123-perforation;

[0038] 120-fixed seat;

[0039] 121- base;

[0040] 122-fixing part; 1221-sliding groove; 1222-first opening; 1223-second opening;

[0041] 130-adjustment component;

[0042] 131-locking block; 1311-second locking structure; 1312-second locking tooth;

[0043] 132-elastic part; 1321-first spring; 1322-second spring;

[0044] 133-knob; 134-limiting member;

[0045] 140-cover body;

[0046] 200-track;

[0047] 300- teleprompter body;

[0048] 20-Mounting seat.

[0049] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0050] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only 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.

[0051] For this reason, please see Figures 1 to 7 The utility model proposes a height adjustment mechanism 100 for the teleprompter assembly 10, and the height adjustment mechanism 100 is specifically used to support the shooting device. In one embodiment, the shooting device can be directly connected to the height adjustment mechanism 100. In another embodiment, the shooting device can be fixed to the height adjustment mechanism 100 through a mounting base 20, and the shooting device can be a mobile phone, a camera, and a video camera. The following is an example of a shooting device connected to the height adjustment mechanism 100 through a mounting base 20. The height adjustment mechanism 100 can be used to adjust the height of the mounting base 20 according to the user's habits and according to different shooting devices. Please refer to Figure 2 The height adjustment mechanism 100 includes a connecting seat 110, a fixing seat 120 and an adjusting assembly 130, wherein the connecting seat 110 includes a connecting portion 111 and a slider 112, and a first clamping structure 1121 is provided on one side of the slider 112. The slider 112 is connected to the bottom of the connecting portion 111, and the connection between the connecting portion 111 and the slider 112 can be threaded. That is, specifically, the connecting portion 111 is provided with a through hole, the slider 112 is provided with a mounting hole, and the threaded fasteners are sequentially passed through the mounting hole and the mounting hole and tightened, so that the connecting portion 111 and the slider 112 are firmly connected. It should be noted that the connecting portion 111 is suitable for installing the mounting seat 20.

[0052] See also Figure 3The fixing seat 120 is provided with a slide groove 1221, a first opening 1222 is provided above the slide groove 1221, and a second opening 1223 is provided on the side thereof. The slider 112 can be inserted into the slide groove 1221 through the first opening 1222 and can slide vertically in the slide groove 1221. The first clamping structure 1121 faces the second opening 1223. The adjustment assembly 130 includes a locking block 131, an elastic portion 132, and a knob 133. The locking block 131 is provided with a second clamping structure 1311. The locking block 131 is penetrated through the second opening 1223 and the second clamping structure 1311 is clamped with the first clamping structure 1121. The elastic portion 132 is respectively connected to the locking block 131 and the fixing seat 120 to generate an elastic force to push the locking block 131 away from the slider 112. The knob 133 is transversely penetrated through the fixing seat 120 and the locking block 131 and is threadedly connected to a side of the fixing seat 120 away from the second opening 1223. The knob 133 can be rotated forward and reversely relative to the fixed seat 120 to increase or release the pressure between the locking block 131 and the slider 112, so that the second clamping structure 1311 can be clamped at multiple clamping positions distributed vertically on the first clamping structure 1121. The second clamping structure 1311 can be clamped at each clamping position of the first clamping structure 1121, so that the height adjustment mechanism 100 can achieve height adjustment of the mounting seat 20. The adjustment operation of this solution is simple and can be adjusted with one hand, which helps to improve the convenience of height adjustment of the mounting seat 20. After the height adjustment of the connecting portion 111 is completed under the movement of the slider 112, the locking block 131 can lock the height position to prevent the mounting seat 20 from shaking during use.

[0053] Specifically, when the height of the photographing device needs to be adjusted, the knob 133 is rotated to release the pressure of the knob 133 on the locking block 131. The locking block 131 is separated from the slider 112 under the action of the elastic portion 132, so that the second clamping structure 1311 is separated from the first clamping structure 1121. The slider 112 is moved downward or upward in the slide groove 1221 to adjust the height of the mounting seat 20. When the height of the mounting seat 20 is adjusted to the right position, the knob 133 is rotated so that the locking block 131 moves toward the direction close to the slider 112 under the pressure of the knob 133, so that the second clamping structure 1311 is clamped with the first clamping structure 1121. Thus, the locking block 131 can fix the slider 112 that has been adjusted to the right position.

[0054] See also Figure 3The first engaging structure 1121 includes a plurality of first engaging teeth 1122 extending transversely, each of which is arranged vertically, and the second engaging structure 1311 includes a plurality of second engaging teeth 1312 extending transversely, each of which is arranged vertically, and the second engaging teeth 1312 can be engaged between adjacent first engaging teeth 1122. Specifically, when the knob 133 is loosened, the pressure of the knob 133 on the locking block 131 is released, and the locking block 131 is separated from the slider 112 under the action of the elastic portion 132. At this time, the second engaging teeth 1312 are separated from the adjacent first engaging teeth 1122, so that the movement of the slider 112 in the slide slot 1221 is no longer affected by the locking block 131, which facilitates the height adjustment of the connecting portion 111. When the locking block 131 moves toward the direction close to the slider 112 under the pressure of the knob 133, the second engaging teeth 1312 engage with the first engaging teeth 1122, thereby fixing the slider 112.

[0055] In order to make the height adjustment mechanism 100 have a higher adjustment accuracy, in one embodiment, refer to Figure 3 and Figure 5 , each first latching tooth 1122 is arranged in a continuous vertical arrangement, each second latching tooth 1312 is arranged in a continuous vertical arrangement, and the first latching tooth 1122 and the second latching tooth 1312 are of the same shape and size. Since each first latching tooth 1122 is arranged in a continuous arrangement, each second latching tooth 1312 is also arranged in a continuous arrangement, so after the slider 112 is adjusted to a desired position, in order to make the second latching tooth 1312 be clamped between adjacent first latching teeth 1122, the position offset of the slider 112 is small, thereby reducing the height position influence of the mounting seat 20. The shape and size of the first latching tooth 1122 are the same as those of the second latching tooth 1312, which helps to improve the stability of the two when they are clamped. In order to further improve the adjustment accuracy of the height adjustment mechanism 100, the vertical size of the first latching tooth 1122 can be as small as possible while meeting the use requirements, and the shape and size of the second latching tooth 1312 are the same as those of the tooth grooves between adjacent first latching teeth 1122.

[0056] See also Figure 3 , Figure 6 as well as Figure 7In one embodiment, the adjustment assembly 130 further includes a stopper 134, which is connected to the end of the knob 133 passing through the fixed seat 120, and the stopper 134 is used to limit the knob 133 from being separated from the fixed seat 120. Specifically, the stopper 134 is arranged on the side of the fixed seat 120 away from the second opening 1223, and the stopper 134 is detachably connected to the knob 133. In one embodiment, the stopper 134 and the knob 133 can be connected by threads, specifically, the knob 133 is provided with a threaded hole, and the side of the fixed seat 120 away from the second opening 1223 is provided with a through hole, after the knob 133 is passed through the through hole, the stopper 134 is installed in the threaded hole. Among them, the size of the portion of the stopper 134 exposed relative to the knob 133 is larger than the size of the through hole, so when the knob 133 is excessively rotated, the stopper 134 can prevent the knob 133 from being separated from the fixed seat 120. In another embodiment, the limit member 134 can be a nut, and a through hole is provided on the side of the fixing seat 120 away from the second opening 1223, and a thread is provided on the surface of the end of the knob 133 passing through the through hole. After the knob 133 is passed through the through hole, the limit member 134 is sleeved on the end of the knob 133, so that when the knob 133 is excessively rotated, the limit member 134 can prevent the knob 133 from detaching from the fixing seat 120.

[0057] In another embodiment, the stopper 134 is connected to the knob 133 by a thread, and the stopper 134 is configured to be rotatable relative to the knob 133 to move toward or away from the locking block 131, so that the knob 133 abuts against the fixing seat 120 when the locking block 131 is engaged with the slider 112, or abuts against the fixing seat 120 when the locking block 131 is separated from the slider 112. Specifically, in one embodiment, when the knob 133 is tightened, the locking block 131 is engaged with the slider 112 under the action of the tightening force of the knob 133, and at this time, the knob 133 abuts against the locking block 131, and the stopper 134 abuts against the fixing seat 120. The tightening force generated by the knob 133 being threadedly connected to the fixing seat 120 and the pressure generated by the knob 133 abutting against the locking block 131 enable the locking block 131 to be tightly engaged with the slider 112. The setting of the limiter 134 can avoid the problem that the entire height adjustment mechanism 100 cannot be used after the threaded connection between the knob 133 and the fixing seat 120 fails, and effectively improves the service life of the height adjustment mechanism 100. It should be noted that when the knob 133 is tightened, the pressure applied by the knob 133 to the locking block 131 includes the tightening force of the knob 133 and the fixing seat 120 and the pressure applied by the limiter 134 to the fixing seat 120. Under the action of these forces, the locking block 131 can compress the elastic part 132 and be clamped on the slider 112. Therefore, the setting of the limiter 134 can also play a role in sharing the tightening force between the knob 133 and the fixing seat 120. In another embodiment, when the knob 133 is loosened to facilitate the slider 112 to adjust the height, the setting of the limiter 134 can prevent the knob 133 from detaching from the fixing seat 120 and affecting the height adjustment process of the mounting seat 20.

[0058] In one embodiment, the knob 133 is transversely disposed through the fixing base 120 and the locking block 131 , but may not be threadedly connected to the fixing base 120 , but may be fixed to the fixing base 120 via a stopper 134 .

[0059] See also Figure 3 The slider 112 is provided with a through hole 1123, through which the knob 133 passes. When the slider 112 slides vertically in the slide slot 1221, the through hole 1123 moves vertically relative to the knob 133. The provision of the through hole 1123 prevents the slider 112 from being interfered by the knob 133 during its movement in the slide slot 1221.

[0060] See also Figure 3The fixing seat 120 includes a base 121 and a fixing portion 122. The lower end of the fixing portion 122 is connected to the base 121. The fixing portion 122 is provided with a slide groove 1221. The second opening 1223 is provided through the fixing portion 122. The base 121 can be connected to an external structure, so that the height adjustment mechanism 100 can be used on other devices, thereby improving the applicability of the height adjustment mechanism 100. The setting of the fixing portion 122 can provide support for the slider 112, and can also provide protection for the sliding of the slider 112 to prevent other structures from interfering with the movement of the slider 112.

[0061] In order to prevent the locking block 131 from moving too far away from the fixing base 120 under the action of the elastic portion 132 after the knob 133 is rotated, see Figure 3 and Figure 5 In one embodiment, the height adjustment mechanism 100 further includes a cover 140 connected to the fixing seat 120, the cover 140 covers the side of the locking block 131 away from the fixing seat 120, the knob 133 penetrates the cover 140 and abuts against the side of the cover 140 away from the locking block 131, and the locking block 131 can move in the cover 140 toward or away from the slider 112. Specifically, the cover 140 is detachably connected to the fixing seat 120, and the cover 140 has a receiving cavity, and the side of the receiving cavity close to the fixing seat 120 has a third opening, and the locking block 131 and the elastic portion 132 are both located in the receiving cavity. The assembly process of the height adjustment mechanism 100 can be as follows: the slider 112 is set in the slide groove 1221 from the first opening 1222, one end of the elastic part 132 is connected to the locking block 131, the locking block 131 is inserted into the second opening 1223 and abuts against the slider 112, and the other end of the elastic part 132 is connected to the fixing seat 120, and then the cover body 140 is buckled on the locking block 131 (the locking block 131 enters the accommodating cavity through the third opening), the cover body 140 is fixed to the fixing seat 120, and finally the knob 133 is sequentially inserted into the cover body 140, the locking block 131, the slider 112 and the fixing seat 120. When the knob 133 is loosened or tightened, the setting of the cover body 140 is also conducive to preventing the locking block 131 from rotating with the knob 133.

[0062] In order to make the locking block 131 bear force evenly, please refer to Figure 3 and Figure 7The elastic part 132 includes a first spring 1321 and a second spring 1322, which are distributed on both sides of the second clamping structure 1311, and the cover body 140 covers the first spring 1321 and the second spring 1322. Specifically, one end of the first spring 1321 and the second spring 1322 is connected to the side of the fixing seat 120 with the second opening 1223, and a limiting hole is provided on the side of the fixing seat 120 with the second opening 1223, and one end of the first spring 1321 and the second spring 1322 is arranged in the limiting hole. The other end of the first spring 1321 and the second spring 1322 is connected to the side of the locking block 131 with the second clamping structure 1311, and the cover body 140 can cover the first spring 1321 and the second spring 1322 while covering the locking block 131, so as to prevent the first spring 1321 and the second spring 1322 from being disturbed by the outside when providing elastic force. The first spring 1321 and the second spring 1322 are respectively disposed on two lateral sides of the second clamping structure 1311 , so as to prevent the locking block 131 from tilting and causing jamming when the locking block 131 moves toward or away from the slider 112 in the cover body 140 .

[0063] In one embodiment, the cover 140 and the fixing seat 120 may be connected by threaded fasteners, so in order to prevent the threaded fasteners from interfering with the slider 112 disposed in the slide groove 1221, the fixing seat 120 has avoidance portions, which are disposed at both ends in the longitudinal direction of the slide groove 1221. When the cover 140 is fixed to the fixing seat 120 by threaded fasteners, the plane perpendicular to the extension direction of the knob 133 is the projection plane, and the projection formed by the threaded fasteners on the projection plane is located outside the projection formed by the slide groove 1221 on the projection plane.

[0064] The second aspect of the present invention also provides a teleprompter assembly 10, see Figure 1 The teleprompter assembly 10 includes the height adjustment mechanism 100 described in any of the above embodiments (or implementations), and also includes a track 200 and a teleprompter body 300. The height adjustment mechanism 100 is slidably connected to the track 200, and the teleprompter body 300 is also slidably connected to the track 200. By moving the teleprompter body 300 relative to the track 200 and the height adjustment mechanism 100 relative to the track 200, the relative position of the teleprompter body 300 and the height adjustment mechanism 100 is adjusted.

[0065] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0066] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or", "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0067] The above are only preferred embodiments of the present invention, and do not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. Height adjustment mechanism, It is characterized in that For a teleprompter assembly, the height adjustment mechanism is used to support the shooting equipment, and the height adjustment mechanism includes: A connecting seat, comprising a connecting portion and a slider, wherein the connecting portion is suitable for connecting the photographing device, the slider is connected below the connecting portion, and a first clamping structure is provided on one side of the slider; A fixed seat, provided with a slide groove, wherein the slide groove is provided with a first opening on the top and a second opening on the side, and the sliding block is inserted into the slide groove through the first opening and can slide vertically in the slide groove; An adjustment component, comprising a locking block, an elastic portion and a knob, wherein the locking block is provided with a second clamping structure, the locking block is inserted into the second opening and the second clamping structure is clamped with the first clamping structure, the elastic portion is respectively connected to the locking block and the fixing seat to generate an elastic force to push the locking block away from the slider, and the knob is transversely inserted into the fixing seat and the locking block and is threadedly connected to the fixing seat; The knob can be rotated forward and reversely relative to the fixing seat to increase or release the pressure between the locking block and the sliding block, and the second clamping structure can be clamped at a plurality of clamping positions of the first clamping structure distributed vertically.

2. The height adjustment mechanism according to claim 1, It is characterized in that The first clamping structure comprises a plurality of first clamping teeth extending laterally, each of the first clamping teeth being arranged vertically; The second locking structure includes a plurality of second locking teeth extending laterally, and each of the second locking teeth is arranged vertically.

3. The height adjustment mechanism according to claim 2, It is characterized in that The first latching teeth and the second latching teeth have the same shape and size, and each of the first latching teeth is arranged in a vertical row, and each of the second latching teeth is arranged in a vertical row.

4. The height adjustment mechanism according to claim 1, It is characterized in that The adjustment assembly further includes a limiting member, which is connected to the end of the knob passing through the fixing seat, and is used to limit the knob from being separated from the fixing seat.

5. The height adjustment mechanism according to claim 4, It is characterized in that The limit member is threadedly connected to the knob, and the limit member is configured to be rotatable relative to the knob to move toward or away from the locking block, so that the knob abuts against the fixing seat when the locking block is engaged with the slider or abuts against the fixing seat when the locking block is separated from the slider.

6. The height adjustment mechanism according to claim 4, It is characterized in that The slider is provided with a through hole, and the knob passes through the through hole. When the slider slides vertically in the slide groove, the through hole moves vertically relative to the knob.

7. The height adjustment mechanism according to claim 1, It is characterized in that The fixing seat includes a base and a fixing portion, the lower end of the fixing portion is connected to the base, the fixing portion is provided with the sliding groove, and the second opening is arranged through the fixing portion.

8. The height adjustment mechanism according to claim 1, It is characterized in that The height adjustment mechanism also includes a cover body connected to the fixed seat, the cover body is covered on the side of the locking block away from the fixed seat, the knob is penetrated by the cover body and abuts against the side of the cover body away from the locking block, and the locking block can move in the cover body toward or away from the slider.

9. The height adjustment mechanism according to claim 8, It is characterized in that The elastic part includes a first spring and a second spring. The first spring and the second spring are distributed on two lateral sides of the second clamping structure. The cover body covers the first spring and the second spring.

10. Teleprompter component, It is characterized in that include: The height adjustment mechanism according to any one of claims 1 to 9; a track, the height adjustment mechanism being slidably connected to the track; The teleprompter body is slidably connected to the track.

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