Brush head clamping device and toothbrush bristle bundle tension testing device
By designing a clamping device suitable for brush heads of different specifications, and utilizing a clamping mechanism and an inclined surface limiting structure, the problem of unstable brush head clamping in the prior art is solved, and the accuracy of toothbrush bristle tension testing is achieved.
Patent Information
- Application Number
- CN202423001191.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-06
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-12-06
AI Technical Summary
In existing toothbrush bristle tension testing devices, the brush head clamping device suffers from poor versatility due to the "V"-shaped groove, resulting in unstable clamping and slippage, which affects the accuracy of test data.
A brush head clamping device is designed, which uses a first clamping member and a second clamping member that are movably and parallel to each other on the base. The clamping mechanism keeps the brush head in a clamped state. The first and second bosses and the inclined surface limit and clamp the brush head laterally. It is suitable for brush heads of different specifications.
It improves the versatility and stability of brush head clamping, avoids slippage, and ensures the accuracy of toothbrush bristle tension testing.
Smart Images
Figure CN223664399U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to toothbrush test equipment technical field, specifically a brush head clamping device and toothbrush bristle bundle tension testing device. BACKGROUND
[0002] Toothbrush realizes the cleaning of tooth through the swing of bristle to the surface of tooth. In order to guarantee that toothbrush bristle bundle has good stability, avoids the phenomenon that bristle falls off in the use of toothbrush, needs to carry out toothbrush bristle bundle tension test in the production process of toothbrush. Figure 1 As shown in the figure, the brush head clamping device mainly fixed brush head through the "V" shaped clamping groove in the toothbrush bristle bundle tension testing device at present, then pulls toothbrush bristle through the tension machine to test the maximum tension when the bundle falls off. However, in recent years, along with the more and more unique shape of toothbrush, the specification of toothbrush head is also various, when the width of brush head is less than the minimum width of "V" shaped clamping groove, then the brush head clamping device cannot be used to clamp and fix the brush head, leading to the different specifications of brush head needing to match the corresponding clamping groove to fix, and the "V" shaped clamping groove can only realize the limiting and fixing of the front end of brush head in the upward moving direction through the two limiting baffle of "V" shaped angle formed at the top of clamping groove, has no limiting effect to the rear end of brush head, and also has no lateral clamping force to the whole brush head, thus easily leading to the unstable clamping of brush head, and easily appearing the slippage phenomenon when carrying out toothbrush bristle bundle tension test, further leading to the inaccurate test data. UTILITY MODEL CONTENTS
[0003] The utility model aims at providing a brush head clamping device and toothbrush bristle bundle tension testing device, solves the poor universality and the unstable clamping of brush head due to the fact that the brush head clamping device mainly fixes brush head through "V" shaped clamping groove in prior art.
[0004] In order to solve the above problem, the utility model provides technical scheme as follows:
[0005] A brush head clamping device, including base, first clamping piece and second clamping piece that are movably and parallelly opposite to each other on the base, and clamping mechanism for keeping the clamping state after the first clamping piece and the second clamping piece clamp the brush head;
[0006] The side of the first clamping piece towards the second clamping piece is provided with a first inclined surface and a first boss, the first boss is arranged above the first inclined surface, and a first included angle is formed between the first boss and the first inclined surface;
[0007] The side of the second clamping piece towards the first clamping piece is provided with a second inclined surface opposite to the first inclined surface and a second boss opposite to the first boss, and a second included angle is formed between the second boss and the second inclined surface;
[0008] The first included angle and the second included angle are acute angles, so that a brush head placement cavity is formed between the first clamping piece and the second clamping piece.
[0009] Further, the first included angle is greater than or equal to 60° and less than 90°, and the second included angle is equal to the first included angle.
[0010] Further, the first included angle is 82.5°, and the second included angle is equal to the first included angle.
[0011] Further, the first protruding length of the first boss is 0.7mm-1.2mm, and the second protruding length of the second boss is equal to the first protruding length.
[0012] Further, the first protruding length of the first boss is 0.7mm-1.0mm, and the second protruding length of the second boss is equal to the first protruding length.
[0013] Further, the base is provided with a limiting groove, the first clamping piece and the second clamping piece are movably and oppositely arranged on the limiting groove, the clamping mechanism comprises coaxial and fixedly connected first and second screws, the first screw is vertically through the first clamping piece and is threadedly connected with the first clamping piece, the second screw is vertically through the second clamping piece and is threadedly connected with the second clamping piece, and the screw directions of the first screw and the second screw are opposite, so that when the first screw and the second screw rotate synchronously in the same direction, the first clamping piece and the second clamping piece are driven to move close to or away from each other.
[0014] Further, one end of the second screw away from the first screw is provided with a knob.
[0015] Further, the base is provided with a sliding groove, the first clamping piece and the second clamping piece are movably and oppositely arranged on the sliding groove, the clamping mechanism comprises first and second positioning and locking pieces movably arranged on the sliding groove, the first positioning and locking piece is located on the side of the first clamping piece away from the second clamping piece, and the second positioning and locking piece is located on the side of the second clamping piece away from the first clamping piece.
[0016] Further, the base is provided with a rack connecting portion for connecting a test rack.
[0017] A toothbrush bristle bundle tension testing device comprises a test rack, a bristle bundle tension testing machine arranged on the test rack, and a brush head clamping device as described above arranged on the test rack and below the bristle bundle tension testing machine.
[0018] Compared with the prior art, the present application has the following advantages:
[0019] The brush head clamping device and the toothbrush bristle bundle tension testing device provided by the utility model have the advantages that the first clamping piece and the second clamping piece are movably and oppositely arranged on the base, the distance between the first clamping piece and the second clamping piece can be freely adjusted, the first clamping piece and the second clamping piece can be kept in the clamped state through the clamping mechanism after clamping the brush head, therefore, the width size requirement of the brush head is low, the brush head can be applicable to brush heads of different specifications, and the universality is high; meanwhile, when the brush head is clamped and fixed, the brush head is subjected to not only the limiting force of the first boss and the second boss, but also the lateral clamping and upward moving force of the first inclined surface and the second inclined surface, so that the brush head can be stably clamped in the brush head placing cavity, and the slip phenomenon during the toothbrush bristle bundle tension testing can be avoided, and the accuracy of the testing data is ensured. BRIEF DESCRIPTION OF DRAWINGS
[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort.
[0021] Figure 1 It is a structural schematic view of the brush head clamping device with the "V"-shaped clamping groove in the prior art.
[0022] Figure 2 It is a structural schematic view of the brush head clamping device of the utility model embodiment 1.
[0023] Figure 3 It is an exploded view of the brush head clamping device of the utility model embodiment 1.
[0024] Figure 4 It is a structural schematic view of the toothbrush bristle bundle tension testing device of the utility model embodiment 1.
[0025] Figure 5 It is a structural schematic view of the brush head clamping device of the utility model embodiment 2.
[0026] Figure 6 It is an exploded view of the brush head clamping device of the utility model embodiment 2.
[0027] Figure 7 It is a structural schematic view of the toothbrush bristle bundle tension testing device of the utility model embodiment 2.
[0028] Corresponding numbers of the reference signs are as follows:
[0029] 1, first clamping piece; 11, first inclined surface; 12, first boss; a1, first included angle; L1, first protruding length; 2, second clamping piece; 21, second inclined surface; 22, second boss; a2, second included angle; L2, second protruding length; 3, base; 310, limiting groove; 320, sliding groove; 330, rack connecting part; 4, brush head placing cavity; 51, first screw; 52, second screw; 53, knob; 61, first positioning locking piece; 62, second positioning locking piece; 71, testing rack; 72, hair bundle tension machine. DETAILED DESCRIPTION
[0030] 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. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.
[0031] Embodiment 1
[0032] Please refer to Figure 2 and Figure 3 The present embodiment provides a brush head clamping device, which comprises a base 3, a first clamping piece 1 and a second clamping piece 2 movably and parallelly arranged on the base 3, and a clamping mechanism for maintaining the clamping state after the first clamping piece 1 and the second clamping piece 2 clamp the brush head; one side of the first clamping piece 1 towards the second clamping piece 2 is provided with a first inclined surface 11 and a first boss 12, the first boss 12 is arranged above the first inclined surface 11, and a first included angle a1 is formed between the first boss 12 and the first inclined surface 11; one side of the second clamping piece 2 towards the first clamping piece 1 is provided with a second inclined surface 21 opposite to the first inclined surface 11 and a second boss 22 opposite to the first boss 12, and a second included angle a2 is formed between the second boss 22 and the second inclined surface 21; the first included angle a1 and the second included angle a2 are both acute angles, so that a brush head placing cavity 4 is formed between the first clamping piece 1 and the second clamping piece 2.
[0033] The brush head clamping device provided by the embodiment has the advantages that: the first clamping piece 1 and the second clamping piece 2 are movably and oppositely arranged on the base 3, the distance between the first clamping piece 1 and the second clamping piece 2 can be freely adjusted, and the first clamping piece 1 and the second clamping piece 2 can be kept in a clamped state through the clamping mechanism after clamping the brush head, so that the brush head clamping device is low in requirements for the width size of the brush head, can be applied to brush heads of different specifications, and has strong universality; meanwhile, when the brush head is clamped and fixed, the brush head is subjected to not only the limiting force of the first boss 12 and the second boss 22, but also the lateral clamping and upward moving force of the first inclined surface 11 and the second inclined surface 21, so that the brush head can be stably clamped in the brush head placing cavity 4, and the brush head is prevented from slipping during the bristle bundle tension test, and the accuracy of test data is ensured.
[0034] Specifically, if the first clamping piece 1 has only the first boss 12 and does not have the first inclined surface 11, and the second clamping piece 2 has only the second boss 22 and does not have the second inclined surface 21, that is, when the first boss 12 and the second boss 22 are below a flat surface, when the brush head clamping device is used to clamp the brush head, since the flat surface can only exert a vertical clamping force on the side surface of the brush head and cannot exert an upward moving force, the brush head is easily clamped laterally and cannot be upwardly limited by the first boss 12 and the second boss 22, and when the bristle bundle tension test is performed, the brush head is easily moved upward to abut against the first boss 12 and the second boss 22 under the action of the tension, thereby affecting the test result.
[0035] The first clamping piece 1 has the first inclined surface 11 and the first boss 12, and the second clamping piece 2 has the second inclined surface 21 and the second boss 22, when the brush head clamping device is used to clamp the brush head, the first inclined surface 11 and the second inclined surface 21 are in contact with the side surface of the brush head, and the brush head is subjected to an upward moving force in addition to the clamping force due to the action of the inclined surfaces, when the brush head is moved upward to the top of the inclined surface, the first boss 12 and the second boss 22 abut against the brush head, limiting the brush head from continuing to move upward, and such interaction realizes the fixation of the brush head, ensuring that the brush head is stably placed in the brush head placing cavity 4, and when the bristle bundle tension test is performed, the brush head does not move, which is beneficial to ensuring the accuracy of the test result.
[0036] Preferably, the second included angle a2 is equal to the first included angle a1, the first included angle a1 is greater than or equal to 60° and less than 90°, the sizes of the first included angle a1 and the second included angle a2 are related to the thickness of the brush head, and the range of greater than or equal to 60° and less than 90° can be applicable to the clamping and fixation of most brush heads on the market, has strong universality, and can provide good clamping effect for brush heads of different specifications. Further preferably, the first included angle a1 is 82.5°.
[0037] Preferably, the first protruding length L1 of the first protrusion 12 is 0.7mm-1.2mm, and the second protruding length L2 of the second protrusion 22 is equal to the first protruding length L1. If the sizes of the first protruding length L1 and the second protruding length L2 are too small, the contact area of the first protrusion 12 and the second protrusion 22 with the brush head is small, which is easy to cause the brush head to slip. If the sizes of the first protruding length L1 and the second protruding length L2 are too large, the first protrusion 12 and the second protrusion 22 are easy to stretch into the bristles, and the bristles near the first protrusion 12 and the second protrusion 22 on both sides of the brush head are easy to be pinched, which affects the test results of the bundle tension of the side bristles. The range of 0.7mm-1.2mm can be suitable for the clamping and fixing of most brush heads on the market, and has strong universality and can provide good clamping effect for brush heads of different specifications. Further preferably, the first protruding length L1 of the first protrusion 12 is 0.7mm-1.0mm, and the first protruding length L1 used in the embodiment is 0.9mm.
[0038] Further, the base 3 is provided with a rack connecting portion 330 for connecting the test rack 71. The base 3 and the test rack 71 can be connected in various ways, which can be a combination of protrusions and grooves, or can be a bolt fastening connection. In the embodiment, the base 3 is provided with the rack connecting portion 330, which is a protrusion in the shape of an inverted "T", and the test rack 71 is provided with a groove matching the shape of the protrusion. The structure is simple and easy to install.
[0039] Further, the base 3 is provided with a limiting groove 310, and the first clamping piece 1 and the second clamping piece 2 are movably and oppositely arranged on the limiting groove 310, and the clamping mechanism comprises coaxially and fixedly connected first and second screws 51 and 52. The first screw 51 penetrates the first clamping piece 1 perpendicularly and is threadedly connected with the first clamping piece 1, and the second screw 52 penetrates the second clamping piece 2 perpendicularly and is threadedly connected with the second clamping piece 2. The first screw 51 and the second screw 52 are opposite in screw direction, so that when the first screw 51 and the second screw 52 rotate synchronously in the same direction, the first clamping piece 1 and the second clamping piece 2 are driven to move closer to or away from each other.
[0040] Further, the second screw 52 is provided with a knob 53 at one end away from the first screw 51.
[0041] In use, by rotating the knob 53, the second screw rod 52 and the first screw rod 51 are driven to rotate synchronously in the same direction, thereby driving the second clamping piece 2 and the first clamping piece 1 to move closer to or away from each other to clamp or release the brush head. The clamping mechanism not only can maintain the clamping state after the first clamping piece 1 and the second clamping piece 2 clamp and fix the brush head, but also can realize the synchronous movement of the second clamping piece 2 and the first clamping piece 1, easily adjust the distance between the second clamping piece 2 and the first clamping piece 1, and is more convenient and fast to operate, which is beneficial to improve the efficiency of clamping and fixing the brush head.
[0042] Specifically, the limiting groove 310 is rectangularly arranged, the axial directions of the first screw rod 51 and the second screw rod 52 are the same as the length directions of the limiting groove 310, the first screw rod 51 and the second screw rod 52 are respectively connected with the side walls of the two short sides of the limiting groove 310 opposite to each other, and the first clamping piece 1 and the second clamping piece 2 are respectively abutted with the side walls of the two long sides of the limiting groove 310 opposite to each other. On the one hand, the two short sides of the limiting groove 310 opposite to each other can limit the stroke range of the relative movement of the first clamping piece 1 and the second clamping piece 2, and on the other hand, the two long sides of the limiting groove 310 opposite to each other can limit the trajectory range of the relative movement of the first clamping piece 1 and the second clamping piece 2, thereby providing a guiding effect for the relative movement of the first clamping piece 1 and the second clamping piece 2, and effectively avoiding the relative rotation of the first clamping piece 1 and the second clamping piece 2 with the base 3 with the rotation of the first screw rod 51 and the second screw rod 52.
[0043] Specifically, the height of the side wall of the limiting groove 310 is less than the overall height of the first clamping piece 1 and the second clamping piece 2, and further, the height of the side wall of the limiting groove 310 is less than the lowest height of the first inclined surface 11 and the second inclined surface 21, i.e., the first inclined surface 11 and the second inclined surface 21 are located above the limiting groove 310, so that the first inclined surface 11 and the second inclined surface 21 clamp and fix the brush head.
[0044] As Figure 4As shown, the brush head clamping device of the embodiment is installed on a toothbrush bristle bundle tension testing device for use, which comprises a testing frame 71, a bristle bundle tension testing machine 72 arranged on the testing frame 71, and the brush head clamping device arranged on the testing frame 71 and below the bristle bundle tension testing machine 72. The testing frame 71 is further provided with a guide rail and a sliding block matched with the guide rail, and the bristle bundle tension testing machine 72 is connected with the sliding block, so that the bristle bundle tension testing machine 72 can move up and down relative to the testing frame 71 to adjust the distance between the bristle bundle tension testing machine 72 and the brush head clamping device. Before the bristle bundle tension test is performed, the brush head is first clamped and fixed by the brush head clamping device, the bristles on the brush head are located between the first boss 12 and the second boss 22 and extend upward, then the bristles are clamped by the bristle bundle tension testing machine 72, and then the bristle bundle tension testing machine 72 applies a pulling force to the bristles to pull them upward until the bristles are separated from the brush head, that is, the maximum pulling force value of the bristle bundle shedding can be obtained. The toothbrush bristle bundle tension testing device provided in the embodiment has strong universality, and the brush head can be stably clamped.
[0045] Embodiment 2
[0046] Please refer to Figure 5 and Figure 6 , the embodiment provides a brush head clamping device, as Figure 7 As shown, the brush head clamping device of the embodiment is installed on a toothbrush bristle bundle tension testing device for use. The difference between the embodiment and embodiment 1 is that the specific structure of the clamping mechanism is different, and the specific connection structure between the first clamping member 1, the second clamping member 2, the base 3 and the clamping structure is different.
[0047] In the brush head clamping device of the embodiment, the base 3 is provided with a sliding groove 320, the first clamping member 1 and the second clamping member 2 are movably and oppositely arranged on the sliding groove 320, the clamping mechanism comprises a first positioning and locking member 61 and a second positioning and locking member 62 movably arranged on the sliding groove 320, the first positioning and locking member 61 is located on the side of the first clamping member 1 away from the second clamping member 2, and the second positioning and locking member 62 is located on the side of the second clamping member 2 away from the first clamping member 1.
[0048] Specifically, in the embodiment, the notch of the sliding groove 320 is provided with a baffle perpendicular to the side wall of the notch on both sides, and a sliding groove gap is arranged between the two baffles. The first positioning and locking member 61 includes two first positioning and locking plates arranged in parallel and a first locking bolt connecting the two first positioning and locking plates, the first locking bolt is movably arranged in the sliding groove gap, and the two first positioning and locking plates are arranged on the two sides of the baffle respectively. The second positioning and locking member 62 includes two second positioning and locking plates arranged in parallel and a second locking bolt connecting the two second positioning and locking plates, the second locking bolt is movably arranged in the sliding groove gap, and the two second positioning and locking plates are arranged on the two sides of the baffle respectively. The first clamping member 1 and the second clamping member 2 are each provided with an inverted "T" shaped protrusion, and the inverted "T" shaped protrusion cooperates with the sliding groove 320 to enable the first clamping member 1 and the second clamping member 2 to slide along the sliding groove 320 to approach or move away from each other.
[0049] In use, the first positioning and locking member 61 and the second positioning and locking member 62 are driven to move towards each other, thereby driving the first clamping member 1 and the second clamping member 2 to approach each other. When the first clamping member 1 and the second clamping member 2 clamp and fix the brush head, the first locking bolt and the second locking bolt are tightened respectively, so that the first positioning and locking member 61 and the second positioning and locking member 62 are fixed on the base 3 respectively, and the clamping state can be maintained. The structure is simple and convenient to operate.
[0050] The brush head clamping device and the toothbrush bristle tension testing device provided by the embodiment have the advantages that the first clamping member 1 and the second clamping member 2 are movably and oppositely arranged on the base 3 in parallel, the distance between the first clamping member 1 and the second clamping member 2 can be freely adjusted, and the clamping state can be maintained by the clamping mechanism after the first clamping member 1 and the second clamping member 2 clamp the brush head. Therefore, the width size requirement of the brush head is low, and the device can be applied to brush heads of different specifications and has strong universality. Meanwhile, when the brush head is clamped and fixed, the brush head not only receives the limiting force of the first protrusion 12 and the second protrusion 22, but also receives the lateral clamping and upward moving force of the first inclined surface 11 and the second inclined surface 21. Therefore, the brush head can be stably clamped in the brush head placing cavity 4, which is beneficial to avoid the slipping phenomenon during the toothbrush bristle tension testing and ensures the accuracy of the test data.
[0051] It should be understood that the terms "first", "second" and the like in the present application are used to describe various information, but these information should not be limited to these terms, and these terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present application, the "first" information can also be referred to as "second" information, and similarly, the "second" information can also be referred to as "first" information. In addition, the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.
[0052] The above is the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled in the art, without departing from the principles of the present application, a number of improvements and modifications can be made, and these improvements and modifications are also considered within the scope of protection of the present application.
Claims
1. A brush head clamping device, characterized in that, It includes a base (3), a first clamping member (1) and a second clamping member (2) that are movably and parallel to each other on the base (3), and a clamping mechanism for maintaining the clamped state after the first clamping member (1) and the second clamping member (2) clamp the brush head; The first clamping member (1) has a first inclined surface (11) and a first boss (12) on the side facing the second clamping member (2). The first boss (12) is located above the first inclined surface (11), and a first included angle (a1) is formed between the first boss (12) and the first inclined surface (11). The second clamping member (2) has a second inclined surface (21) opposite to the first inclined surface (11) and a second boss (22) opposite to the first boss (12) on the side facing the first clamping member (1). The second boss (22) and the second inclined surface (21) form a second included angle (a2). The first included angle (a1) and the second included angle (a2) are both acute angles, so that a brush head placement cavity (4) is formed between the first clamping member (1) and the second clamping member (2).
2. The brush head clamping device according to claim 1, characterized in that, The first included angle (a1) is greater than or equal to 60° and less than 90°, and the second included angle (a2) is equal to the first included angle (a1).
3. The brush head clamping device according to claim 1, characterized in that, The first included angle (a1) is 82.5°, and the second included angle (a2) is equal to the first included angle (a1).
4. A brush head clamping device according to claim 1, characterized in that... The first protrusion length (L1) of the first boss (12) is 0.7mm to 1.2mm, and the second protrusion length (L2) of the second boss (22) is equal to the first protrusion length (L1).
5. A brush head clamping device according to claim 1, characterized in that, The first protrusion length (L1) of the first boss (12) is 0.7mm to 1.0mm, and the second protrusion length (L2) of the second boss (22) is equal to the first protrusion length (L1).
6. A brush head clamping device according to any one of claims 1-5, characterized in that, The base (3) is provided with a limiting groove (310). The first clamping member (1) and the second clamping member (2) are movably and parallel to each other on the limiting groove (310). The clamping mechanism includes a first screw (51) and a second screw (52) that are coaxial and fixedly connected. The first screw (51) passes vertically through the first clamping member (1) and is threadedly connected to the first clamping member (1). The second screw (52) passes vertically through the second clamping member (2) and is threadedly connected to the second clamping member (2). The first screw (51) and the second screw (52) have opposite spiral directions so that when the first screw (51) and the second screw (52) rotate in the same direction and synchronously, they drive the first clamping member (1) and the second clamping member (2) to move closer to or further away from each other.
7. A brush head clamping device according to claim 6, characterized in that, The second screw (52) has a knob (53) at the end away from the first screw (51).
8. A brush head clamping device according to any one of claims 1-5, characterized in that, The base (3) is provided with a slide groove (320). The first clamping member (1) and the second clamping member (2) are movably and parallel to each other on the slide groove (320). The clamping mechanism includes a first positioning locking member (61) and a second positioning locking member (62) movably disposed on the slide groove (320). The first positioning locking member (61) is located on the side of the first clamping member (1) away from the second clamping member (2), and the second positioning locking member (62) is located on the side of the second clamping member (2) away from the first clamping member (1).
9. A brush head clamping device according to claim 1, characterized in that, The base (3) is provided with a frame connection part (330) for connecting the test frame (71).
10. A toothbrush bristle bundle tension testing device, characterized in that, The device includes a test frame (71), a tuft tensioning machine (72) mounted on the test frame (71), and a brush head clamping device as described in any one of claims 1-9 mounted on the test frame (71) and located below the tuft tensioning machine (72).